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1.
Lancet ; 401(10378): 747-761, 2023 03 04.
Artículo en Inglés | MEDLINE | ID: mdl-36746171

RESUMEN

BACKGROUND: Few therapeutic options are available for patients with moderate-to-severe hidradenitis suppurativa. We aimed to assess the efficacy of secukinumab in patients with moderate-to-severe hidradenitis suppurativa in two randomised trials. METHODS: SUNSHINE and SUNRISE were identical, multicentre, randomised, placebo-controlled, double-blind phase 3 trials done in 219 primary sites in 40 countries. Patients aged 18 years old or older with the capacity to provide written informed consent and with moderate-to-severe hidradenitis suppurativa (defined as a total of ≥5 inflammatory lesions affecting ≥2 distinct anatomical areas) for at least 1 year were eligible for inclusion. Included patients also agreed to daily use of topical over-the-counter antiseptics on the areas affected by hidradenitis suppurativa lesions while on study treatment. Patients were excluded if they had 20 or more fistulae at baseline, had ongoing active conditions requiring treatment with prohibited medication (eg, systemic biological immunomodulating treatment, live vaccines, or other investigational treatments), or met other exclusion criteria. In both trials, patients were randomly assigned (1:1:1) by means of interactive response technology to receive subcutaneous secukinumab 300 mg every 2 weeks, subcutaneous secukinumab 300 mg every 4 weeks, or subcutaneous placebo all via a 2 mL prefilled syringe in a double-dummy method as per treatment assignment. The primary endpoint was the proportion of patients with a hidradenitis suppurativa clinical response, defined as a decrease in abscess and inflammatory nodule count by 50% or more with no increase in the number of abscesses or in the number of draining fistulae compared with baseline, at week 16, assessed in the overall population. Hidradenitis suppurativa clinical response was calculated based on the number of abscesses, inflammatory nodules, draining fistulae, total fistulae, and other lesions in the hidradenitis suppurativa affected areas. Safety was assessed by evaluating the presence of adverse events and serious adverse events according to common terminology criteria for adverse events, which were coded using Medical Dictionary for Regulatory Activities terminology. Both the SUNSHINE, NCT03713619, and SUNRISE, NCT03713632, trials are registered with ClinicalTrials.gov. FINDINGS: Between Jan 31, 2019, and June 7, 2021, 676 patients were screened for inclusion in the SUNSHINE trial, of whom 541 (80%; 304 [56%] women and 237 [44%] men; mean age 36·1 years [SD 11·7]) were included in the analysis (181 [33%] in the secukinumab every 2 weeks group, 180 [33%] in the secukinumab every 4 weeks group, and 180 [33%] in the placebo group). Between the same recruitment dates, 687 patients were screened for inclusion in the SUNRISE trial, of whom 543 (79%; 306 [56%] women and 237 [44%] men; mean age 36·3 [11·4] years) were included in the analysis (180 [33%] in the secukinumab every 2 weeks group, 180 [33%] in the secukinumab every 4 weeks group, and 183 [34%] in the placebo group). In the SUNSHINE trial, significantly more patients in the secukinumab every 2 weeks group had a hidradenitis suppurativa clinical response (rounded average number of patients with response in 100 imputations, 81·5 [45%] of 181 patients) compared with the placebo group (60·7 [34%] of 180 patients; odds ratio 1·8 [95% CI 1·1-2·7]; p=0·0070). However, there was no significant difference between the number of patients in the secukinumab every 4 weeks group (75·2 [42%] of 180 patients) and the placebo group (1·5 [1·0-2·3]; p=0·042). Compared with the placebo group (57·1 [31%] of 183 patients), significantly more patients in the secukinumab every 2 weeks group (76·2 [42%] of 180 patients; 1·6 [1·1-2·6]; p=0·015) and the secukinumab every 4 weeks group (83·1 [46%] of 180 patients; 1·9 [1·2-3·0]; p=0·0022) had a hidradenitis suppurativa clinical response in the SUNRISE trial. Patient responses were sustained up to the end of the trials at week 52. The most common adverse event by preferred term up to week 16 was headache in both the SUNSHINE (17 [9%] patients in the secukinumab every 2 weeks group, 20 [11%] in the secukinumab every 4 weeks group, and 14 [8%] in the placebo group) and SUNRISE (21 [12%] patients in the secukinumab every 2 weeks group, 17 [9%] in the secukinumab every 4 weeks group, and 15 [8%] in the placebo group) trials. No study-related deaths were reported up to week 16. The safety profile of secukinumab in both trials was consistent with that previously reported, with no new or unexpected safety findings detected. INTERPRETATION: When given every 2 weeks, secukinumab was clinically effective at rapidly improving signs and symptoms of hidradenitis suppurativa with a favourable safety profile and with sustained response up to 52 weeks of treatment. FUNDING: Novartis Pharma.


Asunto(s)
Hidradenitis Supurativa , Masculino , Humanos , Femenino , Adolescente , Adulto , Anciano , Hidradenitis Supurativa/inducido químicamente , Hidradenitis Supurativa/tratamiento farmacológico , Absceso/tratamiento farmacológico , Resultado del Tratamiento , Anticuerpos Monoclonales Humanizados/uso terapéutico , Método Doble Ciego
2.
Br J Dermatol ; 190(6): 836-845, 2024 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-38470171

RESUMEN

BACKGROUND: Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease associated with a substantial disease burden. Secukinumab has previously been reported to have sustained efficacy with a favourable safety profile in patients with moderate-to-severe HS. It is unknown whether prior biologic exposure affects the efficacy and safety of secukinumab. OBJECTIVES: To investigate the efficacy and safety of secukinumab in patients with moderate-to-severe HS based on prior exposure to -biologics. METHODS: This was an analysis of the SUNSHINE and SUNRISE phase III trials of secukinumab in patients with moderate-to-severe HS. Patients were randomized at baseline to receive secukinumab every 2 (SECQ2W) or 4 weeks (SECQ4W), or placebo for 16 weeks. After week 16, patients on the SECQ2W and SECQ4W schedules remained on the same treatment regimen, while patients randomized to placebo were switched to either SECQ2W or SECQ4W up to week 52. Assessments based on prior exposure to biologics included Hidradenitis Suppurativa Clinical Response (HiSCR), abscess and inflammatory nodule (AN) count, flare rates, HS-related pain [numerical rating scale 30 (NRS30)], 55% reduction in the International Hidradenitis Suppurativa Severity Score System (IHS4-55), Dermatology Life Quality Index, EuroQol-5D and safety. RESULTS: Overall, 1084 patients were randomized in the SUNSHINE and SUNRISE trials and included in this analysis; 255 (23.5%) were biologic-experienced [SECQ2W (n = 80); SECQ4W (n = 81); placebo (n = 94)] and 829 (76.5%) were biologic-naïve [SECQ2W (n = 281); SECQ4W (n = 279); placebo (n = 269)]. At week 16, responses were more efficacious for secukinumab than for placebo with regard to HiSCR in patients who were biologic-experienced {SECQ2W 37.0% [odds ratio (OR) 1.60, 95% confidence interval (CI) 0.83-3.08]; SECQ4W 38.8% [OR 1.67, 95% CI 0.86-3.22]; placebo 27.3%} and biologic-naïve [SECQ2W 45.6% (OR 1.64, 95% CI 1.15-2.33); SECQ4W 45.4% (OR 1.61, 95% CI 1.13-2.29); placebo 34.2%]. Similar results were observed for AN count, NRS30 and IHS4-55. The higher response seen at week 16 with secukinumab was sustained, with a trend toward improvement over time, through to week 52 in both subgroups. Additional efficacy was observed for quality-of-life assessments, and no differences in safety between subgroups were observed. CONCLUSIONS: Regardless of prior biologic exposure, secukinumab was efficacious in improving the signs and symptoms of HS. This finding positions secukinumab as the first option in patients who are biologic-naïve, as well as in patients who have previously been treated with other biologic therapy, based on individual patient needs.


Hidradenitis suppurativa (HS) is a chronic skin disease that causes painful boils. HS is common and affects about 0.4% of the world's population. Treating the condition is difficult, but drugs called 'biologics' can help to improve the symptoms. For example, secukinumab is a biologic drug that has been shown to be effective and well-tolerated for the treatment of HS. In this analysis, we investigated whether previous treatment with biologics could affect the effectiveness and tolerability of secukinumab. This analysis included data from two identical clinical trials (called SUNSHINE and SUNRISE) that recruited adult patients with HS who had moderate-to-severe disease. In these trials, patients took secukinumab 300 mg every 2 weeks or every 4 weeks for 1 year, or a placebo for 4 months and then switched to secukinumab until 1 year. At regular intervals, the effectiveness and tolerability of secukinumab were examined and the results were compared between patients who had previously used another biologic and patients who had never used a biologic before. After 16 weeks, patients who took secukinumab had better results than the patients who took a placebo, independent of previous biologic use. Secukinumab was still effective and had improved results over 1 year of treatment in both subgroups. Regardless of whether patients had previously been taking another biologic, secukinumab was just as tolerable as placebo and there were no new safety risks. Our analysis shows that secukinumab is effective and tolerable, regardless of whether patients have previously used another biologic drug.


Asunto(s)
Anticuerpos Monoclonales Humanizados , Fármacos Dermatológicos , Hidradenitis Supurativa , Humanos , Hidradenitis Supurativa/tratamiento farmacológico , Anticuerpos Monoclonales Humanizados/efectos adversos , Anticuerpos Monoclonales Humanizados/administración & dosificación , Masculino , Femenino , Adulto , Resultado del Tratamiento , Persona de Mediana Edad , Método Doble Ciego , Fármacos Dermatológicos/efectos adversos , Fármacos Dermatológicos/administración & dosificación , Fármacos Dermatológicos/uso terapéutico , Esquema de Medicación
3.
Arch Gynecol Obstet ; 307(4): 1105-1113, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-35980458

RESUMEN

PURPOSE: Breast cancer (BC) is the most common malignancy among women and prognosis is strongly influenced by tumor subtype. Neoadjuvant chemotherapy (NAC) is the standard treatment for both locally advanced- and early-stage triple-negative and Her2-positive BC. Pathologic complete response (pCR) to NAC is an important predictor of patient outcomes. Neutrophil-to-lymphocyte-ratio (NLR) in peripheral blood is associated with prognosis in various malignancies. Here, we investigated the value of the pretreatment NLR as a response predictor in neoadjuvant-treated patients with BC. METHODS: A retrospective chart analysis of 862 patients with invasive BC treated with NAC at the Heidelberg University Hospital during 2003-2015 was conducted. NLR was calculated as the ratio of the absolute neutrophil and lymphocyte counts in peripheral blood, and pCR was defined as absence of invasive or in situ carcinoma in breast and axillary lymph nodes. RESULTS: A total of 151 patients with invasive BC who underwent NAC were included in this study. NLR tended to be higher in the pCR group than the non-pCR group (p < 0.1). Analyses of BC subtypes demonstrated that NLR was significantly higher in the pCR- compared with the non-pCR group (3.304 vs. 2.379, respectively; p = 0.048) in patients with luminal B/Her2-negative tumors. Further, we found a significant difference in NLR according to remission status in postmenopausal patients (2.861 vs. 2.313, respectively; p = 0.043). CONCLUSION: NLR was significantly higher only for patients achieving pCR in the Luminal B/Her2-negative and postmenopausal subgroups. Hence, NLR is a candidate additional predictive factor in patients with Luminal B/Her2-negative BC.


Asunto(s)
Neoplasias de la Mama , Humanos , Femenino , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/patología , Neutrófilos/patología , Terapia Neoadyuvante , Estudios Retrospectivos , Linfocitos/patología , Pronóstico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Receptor ErbB-2
4.
Clin Exp Rheumatol ; 39(2): 279-288, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-32573411

RESUMEN

OBJECTIVES: An imbalance between CD4+-regulatory T-cells (Tregs) and CD4+-responder T-cells (Tresps) correlates with active disease flares in systemic lupus erythematosus (SLE) patients. Both cell subsets consist of highly proliferating Tregs/Tresps expressing inducible T-cell co-stimulatory molecule (ICOS) and less proliferating ICOS--Tregs/Tresps. METHODS: Six-colour-flow-cytometric analysis was used to examine the effect of ICOS+- and ICOS--Treg/Tresp cell differentiation on the composition of the total CD4+-T-helper cell pool with ICOS+- and ICOS--Tregs/Tresps. Functionality of Tregs was examined using suppression assays. RESULTS: In 83 healthy volunteers, the ratio of ICOS+-Tregs/ICOS+-Tresps increased significantly with age, while that of ICOS--Tregs/ICOS--Tresps did not change. In 86 SLE patients (SLEDAI <7), disease activity was associated with an age-independently increased ratio of both ICOS+-Tregs/ICOS+-Tresps and ICOS--Tregs/ICOS--Tresps. In these patients, the functional activity of ICOS+-Tregs, but not of ICOS--Tregs, was preserved. In 13 markedly active disease patients (SLEDAI >7), the percentage of both ICOS+-Tregs and ICOS+-Tresps, was strongly increased within total CD4+-T-helper cells. However, the increased ratio of ICOS+-Tregs/ICOS+-Tresps was not maintained in these patients, due to terminal differentiation and accumulation of naïve cells within total ICOS+-Tregs. Despite increased differentiation of both ICOS--Tregs and ICOS--Tresps, the percentage of ICOS--Tregs increased within CD4+-T-helper cells, while that of ICOS--Tresps decreased, resulting in a significantly increased ratio of ICOS--Tregs/ICOS--Tresps independent of age. CONCLUSIONS: Our data reveal a crucial role of Treg immune senescence for the occurrence of disease flares in SLE patients, with ICOS+-Treg cells being most affected.


Asunto(s)
Lupus Eritematoso Sistémico , Subgrupos de Linfocitos T , Linfocitos T CD4-Positivos , Diferenciación Celular , Humanos , Activación de Linfocitos , Linfocitos T Reguladores
5.
Z Kinder Jugendpsychiatr Psychother ; 49(2): 134-143, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33428461

RESUMEN

Objective: Psychoeducational parent training is an economic way to provide care for parents of children newly diagnosed with an autism spectrum disorder (ASD). This study explores pre-post effect sizes of the manualized autism-specific parent training FAUT-E (Frankfurter Autismus-Elterntraining). Method: Two behaviorally trained therapists worked with 6-10 parents in eight group sessions. Twenty-four parents of 24 children with ASD participated in the study. Outcomes were child- and parent-related measures obtained at T0 (first measurement), T1 (second measurement), T2 (postintervention), and T3 (3 months after intervention). Results: Children showed improved behavior in the parent-rated Aberrant Behavior Checklist (ABC) total score after therapy (p = .001; ES T1T2 = .73) and at T3 (p = .018; ES T1-T3 = -.51), and a lower intensity of parent-rated problem behavior at T3 (p = .031; ES T1-T3 = -.46). Parental measures did not change. Conclusions: This study found medium pre-post effects on the child's behavior by FAUT-E between T1 and T2/T3; these were not observed between the measurements T0-T1. FAUT-E was easy to implement and did not increase parental stress. This is in line with results of studies on other training programs to teach parents to use effective behavioral strategies with ASD.


Asunto(s)
Trastorno del Espectro Autista , Carga del Cuidador/psicología , Crianza del Niño/psicología , Educación en Salud , Padres/educación , Padres/psicología , Trastorno del Espectro Autista/diagnóstico , Trastorno del Espectro Autista/terapia , Trastorno Autístico/diagnóstico , Trastorno Autístico/terapia , Niño , Humanos , Problema de Conducta
6.
Heart Fail Rev ; 25(2): 161-171, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31364027

RESUMEN

This study aims to assess the comparative benefit and risk profile of treatment with mineralocorticoid receptor antagonists (MRAs) with regard to all-cause mortality (primary endpoint), cardiovascular mortality, or heart failure (HF)-related hospitalization (secondary endpoints) and the safety endpoints hyperkalemia, acute renal failure, and gynecomastia in patients with chronic HF. We conducted a systematic review and network meta-analysis following PRISMA-P and PRISMA-NMA guidelines. From 16 different sources, 14 randomized controlled trials totaling 12,213 patients testing an active treatment of either spironolactone, eplerenone, or canrenone/potassium-canreonate in adults with symptomatic HF due to systolic dysfunction reporting any of the above endpoints were retained. Efficacy in comparison to placebo/standard medical care with respect to all-cause mortality was confirmed for spironolactone and eplerenone while no conclusion could be drawn for canrenone (HR 0.69 (0.62; 0.77), 0.82 (0.75; 0.91), and 0.50 (0.17; 1.45), respectively). Indirect comparisons hint a potential (non-significant) preference of spironolactone over eplerenone (HR 0.84 (0.68; 1.03)). The overall risk of bias was low to intermediate. Results for secondary endpoints as well as sensitivity analyses essentially mirrored these findings. The beta-blocker adjusted meta-analysis for the primary endpoint showed the same tendency as the unadjusted one (HR 0.39 (0.07; 2.03)). Results need to be interpreted with caution, though, as the resultant mix of patient- and study-level covariates produced unstable statistical modeling. We found no significant and systematic superiority of either MRA regarding efficacy toward all endpoints considered in both direct and indirect comparisons.


Asunto(s)
Canrenona/uso terapéutico , Eplerenona/uso terapéutico , Insuficiencia Cardíaca/tratamiento farmacológico , Metaanálisis en Red , Ensayos Clínicos Controlados Aleatorios como Asunto , Espironolactona/uso terapéutico , Diuréticos/uso terapéutico , Humanos , Antagonistas de Receptores de Mineralocorticoides/uso terapéutico , Resultado del Tratamiento
7.
Graefes Arch Clin Exp Ophthalmol ; 258(6): 1319-1326, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32350650

RESUMEN

PURPOSE: Potential sources of error in dosage planning in strabismus surgery are (a) prismatic side-effects of spectacle lenses when measuring the preoperative angle with the alternating prism cover test and (b) a potential influence of eye ball axial length on dose response. As both errors take effect in opposite directions, many strabismus surgeons set aside their consideration. This study investigates whether considering both factors for dosage planning yields better operative results. METHODS: In this prospective, randomised, double-blind, interventional pilot study, we included patients scheduled for purely horizontal strabismus surgery and determined each patient's surgical dose (total amount of recession/plication) either with (study group) or without (control) consideration of the two factors. The deviation of the resulting angle from the target angle 3 months postoperatively was the primary endpoint. RESULTS: One hundred one patients were included, 51 of which in the intervention group and 50 in the control group. The primary endpoint showed a median deviation from the target of 3.0° in the intervention group and 4.8° in the control group. We observed a group difference of 1.8° in favour of the intervention group (p = 0.053). Subgroup analysis showed a difference between groups of 2.2° for esotropic patients and of 5.1° for patients with hyperopia > + 2 D. CONCLUSION: Taking prismatic side-effects of spectacle lenses and eye ball length into account when calculating strabismus surgery doses showed a trend towards more accurate results. Esotropic patients and patients with hyperopia > + 2 D seemed to benefit most. TRIAL REGISTRATION: International Clinical Trials Registry Platform: DRKS00011121.


Asunto(s)
Longitud Axial del Ojo/patología , Anteojos , Músculos Oculomotores/cirugía , Procedimientos Quirúrgicos Oftalmológicos , Estrabismo/cirugía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Estudios Prospectivos
8.
J Dtsch Dermatol Ges ; 18(1): 27-32, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31671255

RESUMEN

BACKGROUND AND OBJECTIVES: Dermatoscopy may be hindered by body hair, and the development of an automated hair removal algorithm (AuHRA) might improve the diagnostic accuracy. However, the physicians' exact level of hindrance and the clinical benefit attained by AuHRA has not been assessed. The objectives of this study are to quantify the physicians' level of hindrance by body hair and the level of improvement in the visibility of underlying dermatoscopic patterns after application of AuHRA to digital images of hair-covered nevi. PATIENTS AND METHODS: A cross-sectional reader study including 59 sets of dermatoscopic images of benign nevi that were presented to six dermatologists. Each set included three images of one individual nevus (unshaved/physically shaved/digitally shaved with AuHRA), which were compared to each other within each set to assess the level of improvement caused by hair removal. RESULTS: In comparison to unshaved lesions, dermatologists attributed the highest mean level of improvement to a physical shave (+1.36, p < 0.001) followed by AuHRA's digital shave (+0.79, p < 0.001). The majority of dermatologists considered the application of AuHRA as helpful and confirmed a medical need. CONCLUSIONS: The dermatologists in our study confirmed a substantial impairment of the dermatoscopic examination by body hair. We demonstrated a clinical benefit attained by AuHRA in comparison to unshaved or physically shaved lesions.


Asunto(s)
Algoritmos , Remoción del Cabello/métodos , Nevo/diagnóstico , Neoplasias Cutáneas/diagnóstico , Estudios Transversales , Dermoscopía/métodos , Diagnóstico Diferencial , Humanos , Examen Físico
9.
BMC Med Res Methodol ; 19(1): 150, 2019 07 16.
Artículo en Inglés | MEDLINE | ID: mdl-31311500

RESUMEN

BACKGROUND: Randomized controlled trials are the gold-standard for clinical trials. However, randomization is not always feasible. In this article we propose a prospective and adaptive matched case-control trial design assuming that a control group already exists. METHODS: We propose and discuss an interim analysis step to estimate the matching rate using a resampling step followed by a sample size recalculation. The sample size recalculation is based on the observed mean resampling matching rate. We applied our approach in a simulation study and to a real data set to evaluate the characteristics of the proposed design and to compare the results to a naive approach. RESULTS: The proposed design achieves at least 10% higher matching rate than the naive approach at final analysis, thus providing a better estimation of the true matching rate. A good choice for the interim analysis seems to be a fraction of around [Formula: see text] to [Formula: see text] of the control patients. CONCLUSION: The proposed resampling step in a prospective matched case-control trial design leads to an improved estimate of the final matching rate and, thus, to a gain in power of the approach due to sensible sample size recalculation.


Asunto(s)
Modelos Estadísticos , Estudios Observacionales como Asunto/estadística & datos numéricos , Puntaje de Propensión , Proyectos de Investigación , Isquemia Encefálica/terapia , Estudios de Casos y Controles , Sedación Consciente , Humanos , Estudios Prospectivos , Tamaño de la Muestra , Accidente Cerebrovascular/terapia
10.
Crit Care ; 23(1): 427, 2019 12 30.
Artículo en Inglés | MEDLINE | ID: mdl-31888772

RESUMEN

OBJECTIVE: Spreading depolarizations (SD) are characterized by breakdown of transmembrane ion gradients and excitotoxicity. Experimentally, N-methyl-D-aspartate receptor (NMDAR) antagonists block a majority of SDs. In many hospitals, the NMDAR antagonist s-ketamine and the GABAA agonist midazolam represent the current second-line combination treatment to sedate patients with devastating cerebral injuries. A pressing clinical question is whether this option should become first-line in sedation-requiring individuals in whom SDs are detected, yet the s-ketamine dose necessary to adequately inhibit SDs is unknown. Moreover, use-dependent tolerance could be a problem for SD inhibition in the clinic. METHODS: We performed a retrospective cohort study of 66 patients with aneurysmal subarachnoid hemorrhage (aSAH) from a prospectively collected database. Thirty-three of 66 patients received s-ketamine during electrocorticographic neuromonitoring of SDs in neurointensive care. The decision to give s-ketamine was dependent on the need for stronger sedation, so it was expected that patients receiving s-ketamine would have a worse clinical outcome. RESULTS: S-ketamine application started 4.2 ± 3.5 days after aSAH. The mean dose was 2.8 ± 1.4 mg/kg body weight (BW)/h and thus higher than the dose recommended for sedation. First, patients were divided according to whether they received s-ketamine at any time or not. No significant difference in SD counts was found between groups (negative binomial model using the SD count per patient as outcome variable, p = 0.288). This most likely resulted from the fact that 368 SDs had already occurred in the s-ketamine group before s-ketamine was given. However, in patients receiving s-ketamine, we found a significant decrease in SD incidence when s-ketamine was started (Poisson model with a random intercept for patient, coefficient - 1.83 (95% confidence intervals - 2.17; - 1.50), p < 0.001; logistic regression model, odds ratio (OR) 0.13 (0.08; 0.19), p < 0.001). Thereafter, data was further divided into low-dose (0.1-2.0 mg/kg BW/h) and high-dose (2.1-7.0 mg/kg/h) segments. High-dose s-ketamine resulted in further significant decrease in SD incidence (Poisson model, - 1.10 (- 1.71; - 0.49), p < 0.001; logistic regression model, OR 0.33 (0.17; 0.63), p < 0.001). There was little evidence of SD tolerance to long-term s-ketamine sedation through 5 days. CONCLUSIONS: These results provide a foundation for a multicenter, neuromonitoring-guided, proof-of-concept trial of ketamine and midazolam as a first-line sedative regime.


Asunto(s)
Ketamina/farmacología , N-Metilaspartato/antagonistas & inhibidores , Hemorragia Subaracnoidea/tratamiento farmacológico , Adulto , Anciano , Estudios de Cohortes , Femenino , Humanos , Hipnóticos y Sedantes/farmacología , Hipnóticos y Sedantes/uso terapéutico , Ketamina/uso terapéutico , Tiempo de Internación/estadística & datos numéricos , Masculino , Midazolam/farmacología , Midazolam/uso terapéutico , Persona de Mediana Edad , Fármacos Neuromusculares Despolarizantes/farmacología , Fármacos Neuromusculares Despolarizantes/uso terapéutico , Oportunidad Relativa , Estudios Retrospectivos , Hemorragia Subaracnoidea/fisiopatología
11.
BMC Health Serv Res ; 19(1): 206, 2019 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-30925879

RESUMEN

BACKGROUND: Hospitalisations are a critical event in the care process. Insufficient communication and uncoordinated follow-up care often impede the recovery process of the patient resulting in a high number of rehospitalisations and increased health care costs. The overall aim of this study is the development, implementation and evaluation of a structured programme (VESPEERA) to improve the admission and discharge process. METHODS: We will conduct an open quasi-experimental multi-centre study with four intervention arms. A cohort selected from insurance claims data will serve as a control group reflecting usual care. The intervention will be implemented in 25 hospital departments and 115 general practices in 9 districts in Baden-Wurttemberg. Eligibility criteria for patients are: age > 18 years, hospital admission or hospitalisation, insurance at the sickness fund "AOK Baden-Wurttemberg", enrolment in general practice-centred care contract. Each study arm will receive different intervention components based on the point of study enrolment and the patient's medical need. The interventions comprise a) a structured assessment in the general practice prior to admission resulting in an admission letter b) a discharge conversation by phone between hospital and general practice, c) a structured assessment and care plan post-discharge and d) telephone monitoring for patients with a high risk of rehospitalisation. The assessments are supported by a software tool ("CareCockpit"), originally developed for structured case management programmes. The primary outcome (rehospitalisation due to the same indication within 90 days) and a range of secondary outcomes (rehospitalisation due to the same indication within 30 days; hospitalisations due to ambulatory care-sensitive conditions; delayed prescription of medication and medical products/ devices and referral to other health practitioner/s after discharge; utilisation of emergency or rescue services within 3 months; average care cost per year and patient participating in the VESPEERA programme) and quality indicators will be determined based on insurance claims data and CareCockpit data. Additionally, a patient survey on satisfaction with cross-sectoral care and health related quality of life will be conducted. DISCUSSION: Based on the results, area-wide implementation in usual care is well sought. This study will contribute to an improvement of cross-sectoral care during the admission and discharge process. TRIAL REGISTRATION: DRKS00014294 on DRKS / Universal Trial Number (UTN): U1111-1210-9657, Date of registration 12/06/2018.


Asunto(s)
Continuidad de la Atención al Paciente/organización & administración , Atención a la Salud/organización & administración , Hospitalización/estadística & datos numéricos , Alta del Paciente , Mejoramiento de la Calidad/organización & administración , Adulto , Femenino , Alemania , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos
12.
Neurocrit Care ; 31(1): 97-106, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-30569269

RESUMEN

BACKGROUND: Decompressive hemicraniectomy improves survival rates and functional outcome in patients with space-occupying middle cerebral artery (MCA) infarction. We sought to determine clinical outcomes in elderly patients with MCA infarction treated with hemicraniectomy and to identify factors associated with functional outcome. METHODS: We performed a prospective, single-center observational study aiming to include patients aged ≥ 61 years with large MCA infarction treated with hemicraniectomy. The primary endpoint was the functional outcome according to modified Rankin Scale (mRS) score at 6 months after hemicraniectomy. Secondary endpoints included outcome measures at 12 months. A pooled analysis of individual patient data from the single-center cohort and a DESTINY 2 trial subgroup was performed to identify factors associated with functional status at 12 months. RESULTS: We included 40 MCA infarction patients who underwent hemicraniectomy between 2012 and 2017 at our university hospital (median [IQR] patient age 64 [62-67] years, National Institutes of Health Stroke Scale score 17 [16-21]). The dominant hemisphere was affected in 22/40 patients. Hemicraniectomy was performed within 31 [23-53] h of symptom onset. At 6 months after hemicraniectomy, 6/40 patients (15%) were moderately or moderately severely disabled (mRS score 3 or 4), 19 (47.5%) severely disabled (mRS score 5), and 15 (37.5%) had died. Compared to surgically treated DESTINY 2 patients, the single-center patients less likely exhibited favorable functional outcome at 6 months (mRS scores 0-4; odds ratio 0.239 [95% CI 0.082-0.696]). Case-fatality rate at 12 months was 43%. In a pooled analysis including 79 patients from DECAP and DESTINY 2, no significant associations of baseline and treatment factors with the clinical status at 12 months were observed. CONCLUSIONS: In this single-center cohort of elderly patients with space-occupying MCA infarction and decompressive hemicraniectomy, the probability for survival without severe disability was low. Lethality at 6 and 12 months was comparable to previously reported data from a randomized trial.


Asunto(s)
Craniectomía Descompresiva , Infarto de la Arteria Cerebral Media/cirugía , Factores de Edad , Anciano , Femenino , Humanos , Infarto de la Arteria Cerebral Media/mortalidad , Infarto de la Arteria Cerebral Media/patología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Calidad de Vida , Recuperación de la Función , Factores de Tiempo , Resultado del Tratamiento
13.
Neurocrit Care ; 31(1): 46-55, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-30659468

RESUMEN

BACKGROUND AND PURPOSE: Although the treatment window for mechanical thrombectomy (MT) in patients with acute ischemic stroke (AIS) has been extended in recent years, it has been proven that recanalizing treatment must be administered as soon as possible. We present a new standard operating procedure (SOP) to reduce in-house delay, standardize periinterventional management and improve patient safety during MT. METHODS: KEep Evaluating Protocol Simplification In Managing Periinterventional Light Sedation for Endovascular Stroke Treatment (KEEP SIMPLEST) was a prospective, single-center observational study aimed to compare aspects of periinterventional management in AIS patients treated according to our new SOP using a combination of esketamine and propofol with patients having been randomized into conscious sedation (CS) in the Sedation versus Intubation for Endovascular Stroke TreAtment (SIESTA) trial. Primary outcome was early neurological improvement at 24h using the National Institutes of Health Stroke Scale, and secondary outcomes were door-to-recanalization, recanalization grade, conversion rate and modified Rankin Scale (mRS) at 3 months. RESULTS: Door-to-recanalization time (128.6 ± 69.47 min vs. 156.8 ± 75.91 min; p = 0.02), mean duration of MT (92.01 ± 52 min vs. 131.9 ± 64.03 min; p < 0.001), door-to-first angiographic image (51.61 ± 31.7 min vs. 64.23 ± 21.53 min; p = 0.003) and computed tomography-to-first angiographic image time (31.61 ± 20.6 min vs. 44.61 ± 19.3 min; p < 0.001) were significantly shorter in the group treated under the new SOP. There were no differences in early neurological improvement, mRS at 3 months or other secondary outcomes between the groups. Conversion rates of CS to general anesthesia were similar in both groups. CONCLUSION: An SOP using a novel sedation regimen and optimization of equipment and procedures directed at a leaner, more integrative and compact periinterventional management can reduce in-house treatment delays significantly in stroke patients receiving thrombectomy in light sedation and demonstrated the safety and feasibility of our improved approach.


Asunto(s)
Hipnóticos y Sedantes/administración & dosificación , Trombosis Intracraneal/cirugía , Accidente Cerebrovascular/terapia , Trombectomía , Tiempo de Tratamiento , Anciano , Anciano de 80 o más Años , Protocolos Clínicos , Sedación Consciente , Procedimientos Endovasculares , Femenino , Humanos , Trombosis Intracraneal/complicaciones , Ketamina/administración & dosificación , Masculino , Análisis por Apareamiento , Persona de Mediana Edad , Propofol/administración & dosificación , Accidente Cerebrovascular/etiología , Resultado del Tratamiento
14.
JAMA ; 322(13): 1283-1293, 2019 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-31573636

RESUMEN

IMPORTANCE: General anesthesia during thrombectomy for acute ischemic stroke has been associated with poor neurological outcome in nonrandomized studies. Three single-center randomized trials reported no significantly different or improved outcomes for patients who received general anesthesia compared with procedural sedation. OBJECTIVE: To detect differences in functional outcome at 3 months between patients who received general anesthesia vs procedural sedation during thrombectomy for anterior circulation acute ischemic stroke. DATA SOURCE: MEDLINE search for English-language articles published from January 1, 1980, to July 31, 2019. STUDY SELECTION: Randomized clinical trials of adults with a National Institutes of Health Stroke Scale score of at least 10 and anterior circulation acute ischemic stroke assigned to receive general anesthesia or procedural sedation during thrombectomy. DATA EXTRACTION AND SYNTHESIS: Individual patient data were obtained from 3 single-center, randomized, parallel-group, open-label treatment trials with blinded end point evaluation that met inclusion criteria and were analyzed using fixed-effects meta-analysis. MAIN OUTCOMES AND MEASURES: Degree of disability, measured via the modified Rankin Scale (mRS) score (range 0-6; lower scores indicate less disability), analyzed with the common odds ratio (cOR) to detect the ordinal shift in the distribution of disability over the range of mRS scores. RESULTS: A total of 368 patients (mean [SD] age, 71.5 [12.9] years; 163 [44.3%] women; median [interquartile range] National Institutes of Health Stroke Scale score, 17 [14-21]) were included in the analysis, including 183 (49.7%) who received general anesthesia and 185 (50.3%) who received procedural sedation. The mean 3-month mRS score was 2.8 (95% CI, 2.5-3.1) in the general anesthesia group vs 3.2 (95% CI, 3.0-3.5) in the procedural sedation group (difference, 0.43 [95% CI, 0.03-0.83]; cOR, 1.58 [95% CI, 1.09-2.29]; P = .02). Among prespecified adverse events, only hypotension (decline in systolic blood pressure of more than 20% from baseline) (80.8% vs 53.1%; OR, 4.26 [95% CI, 2.55-7.09]; P < .001) and blood pressure variability (systolic blood pressure >180 mm Hg or <120 mm Hg) (79.7 vs 62.3%; OR, 2.42 [95% CI, 1.49-3.93]; P < .001) were significantly more common in the general anesthesia group. CONCLUSIONS AND RELEVANCE: Among patients with acute ischemic stroke involving the anterior circulation undergoing thrombectomy, the use of protocol-based general anesthesia, compared with procedural sedation, was significantly associated with less disability at 3 months. These findings should be interpreted tentatively, given that the individual trials examined were single-center trials and disability was the primary outcome in only 1 trial.


Asunto(s)
Anestesia General/efectos adversos , Sedación Consciente/efectos adversos , Personas con Discapacidad/estadística & datos numéricos , Accidente Cerebrovascular/cirugía , Trombectomía , Anciano , Isquemia Encefálica/cirugía , Evaluación de la Discapacidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento
15.
Stroke ; 49(6): 1451-1456, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29720440

RESUMEN

BACKGROUND AND PURPOSE: Outcome after mechanical thrombectomy for ischemic stroke may be influenced by blood pressure (BP). This study aims to assess the association of BP changes during general anesthesia versus conscious sedation with functional outcome after mechanical thrombectomy. METHODS: SIESTA (Sedation vs Intubation for Endovascular Stroke Treatment) was a monocentric randomized trial of general anesthesia versus conscious sedation during mechanical thrombectomy involving BP target protocols. In this post hoc analysis, BP measurements were divided into 4 phases: preintervention, prerecanalization, postrecanalization, and postintervention. We examined the association between BP and functional outcomes (defined by improvement of 24-hour National Institutes of Health Stroke Scale [NIHSS] and 3-month modified Rankin Scale). RESULTS: We found no association between the difference in systolic BP, diastolic BP, and mean arterial pressure from baseline to the different phases of intervention and NIHSS change after 24 hours. Only baseline diastolic BP was associated with a reduced improvement in NIHSS (ß=0.17, P<0.01). There was no association of BP drops with a change in modified Rankin Scale at 3 months. About sedation, only baseline mean arterial pressure preintervention revealed significant associations (ß=0.16, P<0.01) with less change in 24-hour NIHSS in conscious sedation group. Otherwise, there was no association for differences of any of the BP measurements with a change in 24-hour NIHSS and long-term functional outcome either in general anesthesia or the conscious sedation group when analyzed separately, consistent with our findings in the entire cohort. Doses of propofol (ß=0.84, P=0.04) and norepinephrine (ß=1.87, P=0.01) administered during intervention before recanalization were associated with reduced improvement of NIHSS at 24 hours. CONCLUSIONS: In a setting, where both sedation regimes general anesthesia and conscious sedation were performed according to strict protocols directed at avoiding BP extremes, our findings suggest that peri-interventional BP drops were not associated with either early neurological improvement or long-term functional outcome. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT02126085.


Asunto(s)
Presión Sanguínea/fisiología , Isquemia Encefálica/terapia , Accidente Cerebrovascular/terapia , Trombectomía , Anciano , Anciano de 80 o más Años , Anestesia General/métodos , Estudios de Cohortes , Sedación Consciente/métodos , Procedimientos Endovasculares/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trombectomía/métodos , Resultado del Tratamiento
16.
Immunology ; 155(2): 211-224, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-29722011

RESUMEN

Premature aging of both CD4+ regulatory T (Treg) and CD4+ responder-T (Tresp) cells in patients with end-stage renal disease (ESRD) is expected to affect the success of later kidney transplantation. Both T-cell populations are released from the thymus as inducible T-cell co-stimulator-positive (ICOS+ ) and ICOS- recent thymic emigrant (RTE) Treg/Tresp cells, which differ primarily in their proliferative capacities. In this study, we analysed the effect of ESRD and subsequent renal replacement therapies on the differentiation of ICOS+ and ICOS- RTE Treg/Tresp cells into ICOS+  CD31- or ICOS-  CD31- memory Treg/Tresp cells and examined whether diverging pathways affected the suppressive activity of ICOS+ and ICOS- Treg cells in co-culture with autologous Tresp cells. Compared with healthy controls, we found an increased differentiation of ICOS+ RTE Treg/Tresp cells and ICOS- RTE Treg cells through CD31+ memory Treg/Tresp cells into CD31- memory Treg/Tresp cells in ESRD and dialysis patients. In contrast, ICOS- RTE Tresp cells showed an increased differentiation via ICOS- mature naive (MN) Tresp cells into CD31- memory Tresp cells. Thereby, the ratio of ICOS+ Treg/ICOS+ Tresp cells was not changed, whereas that of ICOS- Treg/ICOS- Tresp cells was significantly increased. This differentiation preserved the suppressive activity of both Treg populations in ESRD and partly in dialysis patients. After transplantation, the increased differentiation of ICOS+ and ICOS- RTE Tresp cells proceeded, whereas that of ICOS+ RTE Treg cells ceased and that of ICOS- RTE Treg cells switched to an increased differentiation via ICOS- MN Treg cells. Consequently, the ratios of ICOS+ Treg/ICOS+ Tresp cells and of ICOS- Treg/ICOS- Tresp cells decreased significantly, reducing the suppressive activity of Treg cells markedly. Our data reveal that an increased tolerance-inducing differentiation of ICOS+ and ICOS- Treg cells preserves the functional activity of Treg cells in ESRD patients, but this cannot be maintained during long-term renal replacement therapy.


Asunto(s)
Linfocitos T CD4-Positivos/citología , Linfocitos T CD4-Positivos/inmunología , Diferenciación Celular , Fallo Renal Crónico/inmunología , Fallo Renal Crónico/terapia , Trasplante de Riñón , Diálisis Renal , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores , Linfocitos T CD4-Positivos/metabolismo , Comorbilidad , Femenino , Humanos , Inmunofenotipificación , Proteína Coestimuladora de Linfocitos T Inducibles/metabolismo , Activación de Linfocitos/inmunología , Masculino , Persona de Mediana Edad , Subgrupos de Linfocitos T/inmunología , Subgrupos de Linfocitos T/metabolismo , Adulto Joven
17.
Strahlenther Onkol ; 194(2): 116-124, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28916906

RESUMEN

PURPOSE: Randomized trials examining neoadjuvant chemoradiotherapy followed by surgical resection (nCRT-S) and definitive CRT (dCRT) for esophageal cancer (EC) patients are hampered by use of nonstandard treatment paradigms. Outcomes of nCRT-S versus dCRT in a more common patient population are lacking. We investigated local control and survival, evaluated clinical factors associated with endpoints, and assessed patterns of failure between these cohorts. METHODS: We retrospectively analyzed 130 patients with locally advanced EC receiving either dCRT or nCRT-S at our institution from 2000-2012. Inclusion criteria were curatively treated nonmetastatic EC, Karnofsky performance status ≥70%, and receipt of concomitant CRT. Patients were excluded if receiving <41 Gy neoadjuvantly or <50 Gy definitively. Kaplan-Meier analysis was used to evaluate local recurrence (LR), progression-free survival (PFS), and overall survival (OS). Univariate and multivariate Cox proportional hazards modeling addressed factors associated with outcomes. Patterns of failure were enumerated as local, regional, or distant. RESULTS: Mean follow-up was 34.2 months. The 3­year LR was 10.8% in the nCRT-S group and 21.5% in the dCRT group (p = 0.266). Median PFS were 15.6 and 14.9 months, respectively (p = 0.549). Median OS were 20.6 and 25.9 months, respectively (p = 0.81). On univariate and multivariate analysis, none of the investigated factors was associated with outcomes, although node-positive disease showed a trend for worse OS and PFS. Most common failures in both groups were distant (dCRT 31.2% vs. nCRT-S 21.6%) followed by local in-field recurrences (dCRT 26.9% vs. nCRT-S 10.8%). CONCLUSIONS: In this institutional analysis, no significant differences regarding outcomes and patterns of failure were observed between nCRT-S and dCRT.


Asunto(s)
Adenocarcinoma/terapia , Carcinoma de Células Escamosas/terapia , Quimioradioterapia/métodos , Neoplasias Esofágicas/terapia , Esofagectomía , Terapia Neoadyuvante/métodos , Adenocarcinoma/mortalidad , Adenocarcinoma/patología , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/mortalidad , Carcinoma de Células Escamosas/patología , Estudios de Cohortes , Terapia Combinada , Neoplasias Esofágicas/mortalidad , Neoplasias Esofágicas/patología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/etiología , Recurrencia Local de Neoplasia/mortalidad , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Insuficiencia del Tratamiento
18.
Eur Radiol ; 28(5): 1801-1808, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29230526

RESUMEN

OBJECTIVE: To identify demographic determinants of peripheral nerve diffusion tensor imaging (DTI) and to establish normal values for fractional anisotropy (FA), axial diffusivity (AD), radial diffusivity (RD), and mean diffusivity (MD). METHODS: Sixty subjects were examined at 3 Tesla by single-shot DTI. FA, AD, RD, and MD were collected for the sciatic, tibial, median, ulnar, and radial nerve and were correlated with demographic variables. RESULTS: Mean FA of all nerves declined with increasing age (r = -0.77), which could be explained by RD increasing (r = 0.56) and AD declining (r = -0.40) with age. Moreover, FA was inversely associated with height (r = -0.28), weight (r = -0.38) and BMI (r = -0.35). Although FA tended to be lower in men than women (p = 0.052), this difference became completely negligible after adjustment to body weight. A multiple linear regression model for FA was calculated with age and weight as predictors (defined by backward variable selection), yielding an R 2 = 0.71 and providing a correction formula to adjust FA for age and weight. CONCLUSION: Peripheral nerve DTI parameters depend on demographic variables. The most important determinants age and weight should be considered in all studies employing peripheral nerve DTI. KEY POINTS: • Peripheral nerve diffusion tensor imaging (DTI) parameters depend on demographic variables. • Fractional anisotropy (FA) declines with increasing age and weight. • Gender does not systematically affect peripheral nerve DTI. • The formula presented here allows adjustment of FA for demographic variables.


Asunto(s)
Imagen de Difusión Tensora/métodos , Nervios Periféricos/diagnóstico por imagen , Adulto , Anciano , Anciano de 80 o más Años , Envejecimiento , Anisotropía , Femenino , Voluntarios Sanos , Humanos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Adulto Joven
19.
BMC Med Res Methodol ; 18(1): 128, 2018 11 12.
Artículo en Inglés | MEDLINE | ID: mdl-30419827

RESUMEN

BACKGROUND: Network meta-analysis is an extension of the classical pairwise meta-analysis and allows to compare multiple interventions based on both head-to-head comparisons within trials and indirect comparisons across trials. Bayesian or frequentist models are applied to obtain effect estimates with credible or confidence intervals. Furthermore, p-values or similar measures may be helpful for the comparison of the included arms but related methods are not yet addressed in the literature. In this article, we discuss how hypothesis testing can be done in a Bayesian network meta-analysis. METHODS: An index is presented and discussed in a Bayesian modeling framework. Simulation studies were performed to evaluate the characteristics of this index. The approach is illustrated by a real data example. RESULTS: The simulation studies revealed that the type I error rate is controlled. The approach can be applied in a superiority as well as in a non-inferiority setting. CONCLUSIONS: Test decisions can be based on the proposed index. The index may be a valuable complement to the commonly reported results of network meta-analyses. The method is easy to apply and of no (noticeable) additional computational cost.


Asunto(s)
Algoritmos , Teorema de Bayes , Modelos Teóricos , Metaanálisis en Red , Simulación por Computador , Humanos , Reproducibilidad de los Resultados
20.
Acta Oncol ; 57(12): 1713-1720, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30264630

RESUMEN

BACKGROUND: The purpose of this study was to compare dosimetric differences related to target volume and organs-at-risk (OAR) using 3D-conformal radiotherapy (3DCRT), volumetric modulated arc therapy (VMAT), TomoTherapy (Tomo), proton radiotherapy (PRT), and carbon ion radiotherapy (CIRT) as part of postoperative thymoma irradiation. MATERIAL AND METHODS: This single-institutional analysis included 10 consecutive patients treated with adjuvant radiotherapy between December 2013 and September 2016. CT-datasets and respective RT-structures were anonymized and plans for all investigated RT modalities (3DCRT, VMAT, Tomo, PRT, CIRT) were optimized for a total dose of 50 Gy in 25 fractions. Comparisons between target volume and OAR dosimetric parameters were performed using the Wilcoxon rank-sum test. RESULTS: The best target volume coverage (mean PTV V95% for all patients) was observed for Tomo (97.9%), PRT (97.6%), and CIRT (96.6%) followed by VMAT (85.4%) and 3DCRT (74.7%). PRT and CIRT both significantly reduced mean doses to the lungs, breasts, heart, and esophagus, as well as the spinal cord maximum dose compared with photon modalities. Among photon-based techniques, VMAT showed improved OAR sparing over 3DCRT. Tomo was associated with considerable low-dose exposure to the lungs, breasts, and heart. CONCLUSIONS: Particle radiotherapy (PRT, CIRT) showed superior OAR sparing and optimal target volume coverage. The observed dosimetric advantages are expected to reduce toxicity rates. However, their clinical impact must be investigated prospectively.


Asunto(s)
Tratamientos Conservadores del Órgano/métodos , Órganos en Riesgo/efectos de la radiación , Fotones/efectos adversos , Terapia de Protones/efectos adversos , Timoma/terapia , Neoplasias del Timo/terapia , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tratamientos Conservadores del Órgano/efectos adversos , Fotones/uso terapéutico , Periodo Posoperatorio , Terapia de Protones/métodos , Traumatismos por Radiación/prevención & control , Radiometría , Dosificación Radioterapéutica , Planificación de la Radioterapia Asistida por Computador/métodos , Radioterapia Adyuvante/efectos adversos , Radioterapia Adyuvante/métodos , Radioterapia Conformacional/efectos adversos , Radioterapia Conformacional/métodos , Radioterapia de Intensidad Modulada/efectos adversos , Radioterapia de Intensidad Modulada/métodos , Timectomía , Timo/patología , Timo/cirugía , Neoplasias del Timo/patología , Adulto Joven
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