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1.
Ann Vasc Surg ; 94: 205-212, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36868457

RESUMEN

BACKGROUND: R2CHA2DS2-VA score has been used to predict short and long-term outcomes in many cardiovascular diseases. This study aims to validate the R2CHA2DS2-VA score as a long-term major adverse cardiovascular events (MACE) predictor after carotid endarterectomy (CEA). Secondary outcomes were also assessed regarding the incidence of all-cause mortality, acute myocardial infarction (AMI), major adverse limb events (MALE), and acute heart failure (AHF). METHODS: From January 2012 to December 2021, patients (n = 205) from a Portuguese tertiary care and referral center that underwent CEA with regional anesthesia (RA) for carotid stenosis (CS) were selected from a previously collected prospective database, and a posthoc analysis was performed. Demographics and comorbidities were registered. Clinical adverse events were assessed 30 days after the procedure and in the subsequent long-term surveillance period. Statistical analysis was performed by the Kaplan-Meier method and Cox proportional hazards regression. RESULTS: Of the patients enrolled, 78.5% were males with a mean age of 70.44 ± 8.9 years. Higher scores of R2CHA2DS2-VA were associated with long-term MACE (adjusted hazard ratio (aHR) 1.390; 95% confidence interval (CI) 1.173-1.647); and mortality (aHR 1.295; 95% CI 1.08-1.545). CONCLUSIONS: This study demonstrated the potential of the R2CHA2DS2-VA score to predict long-term outcomes, such as AMI, AHF, MACE, and all-cause mortality, in a population of patients submitted to carotid endarterectomy.


Asunto(s)
Enfermedades Cardiovasculares , Estenosis Carotídea , Endarterectomía Carotidea , Insuficiencia Cardíaca , Infarto del Miocardio , Accidente Cerebrovascular , Humanos , Masculino , Persona de Mediana Edad , Anciano , Femenino , Endarterectomía Carotidea/efectos adversos , Enfermedades Cardiovasculares/etiología , Factores de Riesgo , Resultado del Tratamiento , Estenosis Carotídea/complicaciones , Estenosis Carotídea/diagnóstico por imagen , Estenosis Carotídea/cirugía , Infarto del Miocardio/etiología , Factores de Riesgo de Enfermedad Cardiaca , Insuficiencia Cardíaca/etiología , Accidente Cerebrovascular/etiología , Medición de Riesgo , Estudios Retrospectivos
2.
Int J Mol Sci ; 24(8)2023 Apr 11.
Artículo en Inglés | MEDLINE | ID: mdl-37108202

RESUMEN

Type I diabetes is a prominent human pathology with increasing incidence in the population; however, its cause is still unknown. This disease promotes detrimental effects on reproduction, such as lower sperm motility and DNA integrity. Hence, the investigation of the underlying mechanisms of this metabolic disturbance in reproduction and its transgenerational consequences is of the utmost importance. The zebrafish is a useful model for this research considering its high homology with human genes as well as its fast generation and regeneration abilities. Therefore, we aimed to investigate sperm quality and genes relevant to diabetes in the spermatozoa of Tg(ins:nfsb-mCherry) zebrafish, a model for type I diabetes. Diabetic Tg(ins:nfsb-mCherry) males showed significantly higher expression of transcripts for insulin a (insa) and glucose transporter (slc2a2) compared to controls. Sperm obtained from the same treatment group showed significantly lower sperm motility, plasma membrane viability, and DNA integrity compared to that from the control group. Upon sperm cryopreservation, sperm freezability was reduced, which could be a consequence of poor initial sperm quality. Altogether, the data showed similar detrimental effects related to type I diabetes in zebrafish spermatozoa at the cellular and molecular levels. Therefore, our study validates the zebrafish model for type I diabetes research in germ cells.


Asunto(s)
Diabetes Mellitus Tipo 1 , Pez Cebra , Animales , Masculino , Humanos , Pez Cebra/genética , Pez Cebra/metabolismo , Insulina/metabolismo , Proteínas Facilitadoras del Transporte de la Glucosa/metabolismo , Motilidad Espermática , Espermatozoides/metabolismo , Criopreservación , Insulina Regular Humana , Diabetes Mellitus Tipo 1/metabolismo , ADN/metabolismo
3.
Ann Vasc Surg ; 79: 247-255, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34699941

RESUMEN

Contralateral carotid stenosis (clCS) has been described as a perioperative predictor of mortality after carotid endarterectomy (CEA). However, its predictive value on long-term cardiovascular events remains controversial. The study aims to assess the potential role of clCS as a long-term predictor of major adverse cardiovascular events (MACE) in patients who underwent CEA. From January 2012 to July 2020, patients undergoing CEA under regional anesthesia for carotid stenosis in a tertiary care and referral center were eligible from a prospective database, and a post hoc analysis was performed. The primary outcome consisted in the occurrence of long-term MACE. Secondary outcomes included all-cause mortality, stroke, myocardial infarction, acute heart failure, and major adverse limb events. A total of 192 patients were enrolled. With a median 50 months follow-up, chronic kidney disease (CKD) (mean survival time (MST) 51.7 vs. 103.3, P < 0.010) and peripheral artery disease (PAD) (MST 75.1 vs. 90.3, P = 0.001) were associated with decreased survival time. After propensity score matching (PSM), CKD (MST 49.1 vs. 106.0, P = 0.001) and PAD (MST 75.7 vs. 94.0, P = 0.001) maintained this association. On multivariate Cox regression analysis, contralateral stenosis was associated with higher MACE (hazard ratio (HR) = 2.035; 95% CI: 1.113-3.722, P = 0.021 and all-cause mortality (HR = 2.564; 95% CI: 1.276-5,152 P = 0.008). After PSM, only all-cause mortality (HR 2.323; 95% CI: 0.993-5.431, P = 0.052) maintained a significant association with clCS. On multivariable analysis, clCS (aHR 2.367; 95% CI: 1.174-4.771, P = 0.016), age (aHR 1.039, 95% CI: 1.008-1.070), CKD (aHR 2.803; 95% CI: 1.409-5.575, P = 0.003) and PAD (aHR 3.225, 95% CI: 1.695-6.137, P < 0.001) were independently associated with increased all-cause mortality. Contrary to MACE, clCS is a strong predictor of long-term all-cause mortality after CEA. However, MACE risk may compromise CEA benefits by other competitive events. Therefore, further studies are needed to establish the role of clCS on postoperative events and on patients' specific assessments in order to determine the best medical treatment and easy access to surgical intervention.


Asunto(s)
Estenosis Carotídea/cirugía , Endarterectomía Carotidea/efectos adversos , Complicaciones Posoperatorias/etiología , Anciano , Estenosis Carotídea/diagnóstico por imagen , Estenosis Carotídea/mortalidad , Endarterectomía Carotidea/mortalidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/diagnóstico , Complicaciones Posoperatorias/mortalidad , Valor Predictivo de las Pruebas , Medición de Riesgo , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento
4.
BMC Med Educ ; 22(1): 375, 2022 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-35578233

RESUMEN

BACKGROUND: The COVID-19 pandemic has precipitated rapid changes in medical education to protect students and patients from the risk of infection. Virtual Patient Simulators (VPS) provide a simulated clinical environment in which students can interview and examine a patient, order tests and exams, prioritize interventions, and observe response to therapy, all with minimal risk to themselves and their patients. Like high-fidelity simulators (HFS), VPS are a tool to improve curricular integration. Unlike HFS, VPS require limited infrastructure investment and can be used in low-resource settings. Few studies have examined the impact of VPS training on clinical education. This international, multicenter cohort study was designed to assess the impact of small-group VPS training on individual learning process and curricular integration from the perspective of nursing and medical students. METHODS: We conducted a multi-centre, international cohort study of nursing and medical students. Baseline perceptions of individual learning process and curricular integration were assessed using a 27-item pre-session questionnaire. Students subsequently participated in small-group VPS training sessions lead by a clinical tutor and then completed a 32-item post-session questionnaire, including 25 paired items. Pre- and post-session responses were compared to determine the impact of the small-group VPS experience. RESULTS: Participants included 617 nursing and medical students from 11 institutions in 8 countries. At baseline, nursing students reported greater curricular integration and more clinical and simulation experience than did medical students. After exposure to small-group VPS training, participants reported significant improvements in 5/6 items relating to individual learning process and 7/7 items relating to curricular integration. The impact of the VPS experience was similar amongst nursing and medical students. CONCLUSIONS: In this multi-centre study, perceptions of individual learning process and curricular integration improved after exposure to small-group VPS training. Nursing and medical students showed similar impact. Small-group VPS training is an accessible, low-risk educational strategy that can improve student perceptions of individual learning process and curricular integration.


Asunto(s)
COVID-19 , Educación Médica/métodos , Educación en Enfermería/métodos , Simulación de Paciente , Estudiantes de Medicina , Estudiantes de Enfermería , Realidad Virtual , Competencia Clínica , Estudios de Cohortes , Humanos , Pandemias
5.
Health Qual Life Outcomes ; 19(1): 59, 2021 Feb 18.
Artículo en Inglés | MEDLINE | ID: mdl-33602252

RESUMEN

BACKGROUND: The Short Inflammatory Bowel Disease Questionnaire (SIBDQ) is a widely used instrument to assess Health-related Quality of Life (HRQoL) among inflammatory bowel disease (IBD) patients. Our aim was to translate and adapt the SIBDQ so that it could be adequately used in Portugal. METHODS: This is a prospective design cohort study undertaken at a tertiary hospital. This study took place simultaneously with the first part of the SexIDI study, a study aiming to assess the impact of IBD on patients' sexual QoL. The original SIBDQ was translated by two independent translators and adapted by an IBD expert panel following the opinions of a convenient sample of 5 IBD patients. Afterwards, IBD patients from the outpatient clinic were consecutively invited to fill the Portuguese version of the questionnaire (SIBDQ-PT) at three different timepoints (0, 2, 4 weeks). Ninety-two patients completed the SIBDQ-PT at baseline, whereas 33 did so after 2 and 4 weeks (approximately). Statistical analysis was performed using SPSS version 25, and the following aspects were analysed: reliability (through internal consistency, test-retest and intraclass correlation), validity (through exploratory factor analysis [EFA], and Pearson correlation coefficient for linear correlations), score distribution, and responsiveness analysis (through t-student tests). RESULTS: Overall, SIBDQ-PT was shown to have a high internal consistency (Cronbach's α = 0.80) and a high test-retest reliability (0.80 [CI 0.74-0.86] and 0.69 [CI 0.50-0.82]). EFA detected four dimensions-bowel, social, emotional and systemic. As expected, an overall SIBDQ-PT score was positively correlated with sexual satisfaction (r = 0.27; p < 0.05) and negatively correlated with depression (r = - 0.63; p < 0.01). Moreover, SIBDQ-PT was found to have an adequate score distribution, and to be responsive, as there was a significant subscore change for patients who reported an "overall worsening in general well-being" (0.93 ± 0.13 decrease; p < 0.01). CONCLUSIONS: The Portuguese version of the SIBDQ hereby presented is a reliable, valid and responsive instrument that can be used to measure HRQoL among Portuguese IBD patients.


Asunto(s)
Enfermedades Inflamatorias del Intestino , Calidad de Vida , Encuestas y Cuestionarios , Traducciones , Adolescente , Adulto , Femenino , Humanos , Lenguaje , Masculino , Persona de Mediana Edad , Portugal , Estudios Prospectivos , Reproducibilidad de los Resultados , Adulto Joven
6.
Public Health Nutr ; : 1-13, 2021 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-34369348

RESUMEN

OBJECTIVE: This study aimed to identify health behaviours that determine adolescent's adherence to the Mediterranean diet (MD) through a decision tree statistical approach. DESIGN: Cross-sectional study, with data collected through a self-fulfilment questionnaire with five sections: (1) eating habits; (2) adherence to the MD (KIDMED index); (3) physical activity; (4) health habits and (5) socio-demographic characteristics. Anthropometric and blood pressure data were collected by a trained research team. The Automatic Chi-square Interaction Detection (CHAID) method was used to identify health behaviours that contribute to a better adherence to the MD. SETTING: Eight public secondary schools, in Algarve, Portugal. PARTICIPANTS: Adolescents with ages between 15 and 19 years (n 325). RESULTS: According to the KIDMED index, we found a low adherence to MD in 9·0 % of the participants, an intermediate adherence in 45·5 % and a high adherence in 45·5 %. Participants that regularly have breakfast, eat vegetable soup, have a second piece of fruit/d, eat fresh or cooked vegetables 1 or more times a day, eat oleaginous fruits at least 2 to 3 times a week, and practice sports and leisure physical activities outside school show higher adherence to the MD (P < 0·001). CONCLUSIONS: The daily intake of two pieces of fruit and vegetables proved to be a determinant health behaviour for high adherence to MD. Strategies to promote the intake of these foods among adolescents must be developed and implemented.

7.
Cryobiology ; 91: 115-127, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31605703

RESUMEN

The synergy obtained by the combination of cryoprotectants is a successful strategy that can be beneficial on the optimization of zebrafish sperm cryopreservation. Recently, a protocol was established for this species using an electric ultrafreezer (-150 °C) performing cooling rate (-66 °C/min) and storage within one step. The ultimate objective of sperm cryopreservation is to generate healthy offspring. Therefore, the objective of this study was to select the most adequate cryoprotectant combination, for the previously established protocol, that generate high quality offspring with normal skeletogenesis. Among the permeating cryoprotectant concentrations studied 12.5% and 15% of N,N-dimethylformamide (DMF) yielded high post-thaw sperm quality and hatching rates. For these two concentrations, the presence of bovine serum albumin (10 mg/mL), egg yolk (10%), glycine (30 mM) and bicine (50 mM) was evaluated for post-thaw sperm motility, viability, in vitro fertilization success and offspring skeletal development (30 days post fertilization). Higher concentration of permeating cryoprotectant (15%) decreased the incidence of deformed arches and severe skeletal malformations, which suggests higher capacity to protect the cell against cold stress and DNA damage. Extender containing 15% DMF with Ctrl, Bicine and egg yolk were the non-permeating cryoprotectants with higher post-thaw quality. The use of these compounds results in a reduction in vertebral fusions, compressions and severity of skeletal malformations in the offspring. Therefore, these extender compositions are beneficial for the quality of zebrafish offspring sired by cryopreserved sperm with -66 °C/min freezing rate. To the best of our knowledge, this is the first report on skeletal development of the offspring sired by cryopreserved sperm performed with different freezing media compositions in zebrafish.


Asunto(s)
Criopreservación/métodos , Crioprotectores/farmacología , Dimetilformamida/farmacología , Preservación de Semen/métodos , Pez Cebra/embriología , Albúminas/farmacología , Animales , Yema de Huevo , Congelación , Glicina/análogos & derivados , Glicina/farmacología , Masculino , Motilidad Espermática/efectos de los fármacos , Espermatozoides/efectos de los fármacos
8.
J Stroke Cerebrovasc Dis ; 27(2): 346-351, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29102391

RESUMEN

BACKGROUND: The short-term outcome from spontaneous intracerebral hemorrhage (SICH) is influenced by local quality of care and population specificities. There are no studies about the SICH mortality in southern Portugal. The objective of this study was to describe the predictors of 30-day in-hospital SICH mortality in Algarve, the southernmost region of Portugal. METHODS: Logistic regression was used to identify predictors of in-hospital death. Kaplan-Meier analysis was used to estimate survival over time based on SICH severity. RESULTS: Of the 549 cases, 349 (63.6%) were men; the mean age was 71.4 years. Two hundred seventeen patients (39.5%) did not receive stroke unit (SU) care. The 30-day mortality was 34.4%. Independent predictors of death were older age (odds ratio [OR] = 1.096, 95% confidence interval [CI] = 1.031-2.062, P = .022) per additional year, vitamin K antagonists use (OR = 5.464, 95% CI = 2.088-25.714, P = .043), admission Glasgow Coma Scale (GCS) score of 8 or lower (OR = 20.511, 95% CI = 7.862-62.168, P < .0001) or GCS score of 9-12 (OR = 12.709, 95% CI = 3.078-44.113, P < .0001), hematoma volume (OR = 1.037, 95% CI = 1.004-1.071, P = .028) per additional milliliter, intraventricular dissection (OR = 1.916, 95% CI = 1.105-4.566, P = .046), and pneumonia (OR 12.918, 95% CI = 4.603-24.683, P < .0001). SU care was independently associated with reduction of death (OR .395, 95% CI = .126-.635, P = .004). Severity correlated with short time to death (P < .0001). Sixty-five of the patients (39.2%) died after the seventh day of SICH ("non-neurological deaths"). CONCLUSIONS: The in-hospital 30-day mortality is high in the region. Admitting more patients to the SU and implementation of preventive strategies of complications can reduce mortality.


Asunto(s)
Hemorragia Cerebral/mortalidad , Mortalidad Hospitalaria , Anciano , Anciano de 80 o más Años , Hemorragia Cerebral/diagnóstico , Hemorragia Cerebral/terapia , Distribución de Chi-Cuadrado , Femenino , Humanos , Estimación de Kaplan-Meier , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Portugal/epidemiología , Estudios Retrospectivos , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento
9.
Acta Neurochir (Wien) ; 159(11): 2089-2097, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28916863

RESUMEN

BACKGROUND: Intracerebral hemorrhage (ICH) in the context of cerebral hyperperfusion syndrome (CHS) is an uncommon but potentially lethal complication after carotid revascularization for carotid occlusive disease. Information about its incidence, risk factors and fatality is scarce. Therefore, we aimed to perform a systematic review and meta-analysis focusing on the incidence, risk factors and outcomes of ICH in the context of CHS after carotid revascularization. METHODS: We searched the PubMed and EBSCO hosts for all studies published in English about CHS in the context of carotid revascularization. Two reviewers independently assessed each study for eligibility based on predefined criteria. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed, and the PROSPERO register was made (register no. CRD42016033190), including the pre-specified protocol. RESULTS: Forty-one studies involving 28,956 participants were deemed eligible and included in our analysis. The overall quality of the included studies was fair. The pooled frequency of ICH in the context of CHS was 38% (95% CI: 26% to 51%, I2 = 84%, 24 studies), and the pooled case fatality of ICH after CHS was 51% (95% CI: 32% to 71%, I2 = 77%, 17 studies). When comparing carotid angioplasty with stenting (CAS) with carotid endarterectomy (CEA), post-procedural ICH in the context of CHS was less frequent in CEA. ICH following CHS occurred less often in large series and was rare in asymptomatic patients. The most common risk factors were periprocedural hypertension and ipsilateral severe stenosis. CONCLUSIONS: ICH as a manifestation of CHS is rare, more frequent after CAS and associated with poor prognosis. Periprocedural control of hypertension can reduce its occurrence.


Asunto(s)
Estenosis Carotídea/cirugía , Hemorragia Cerebral/etiología , Procedimientos Quirúrgicos Vasculares/efectos adversos , Angioplastia/efectos adversos , Endarterectomía Carotidea/efectos adversos , Humanos , Incidencia , Complicaciones Posoperatorias/etiología , Factores de Riesgo , Stents/efectos adversos
10.
J Infect Dis ; 210 Suppl 1: S143-51, 2014 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-25316829

RESUMEN

In August 2012, the Brazilian Ministry of Health introduced inactivated polio vaccine (IPV) as part of sequential polio vaccination schedule for all infants beginning their primary vaccination series. The revised childhood immunization schedule included 2 doses of IPV at 2 and 4 months of age followed by 2 doses of oral polio vaccine (OPV) at 6 and 15 months of age. One annual national polio immunization day was maintained to provide OPV to all children aged 6 to 59 months. The decision to introduce IPV was based on preventing rare cases of vaccine-associated paralytic polio, financially sustaining IPV introduction, ensuring equitable access to IPV, and preparing for future OPV cessation following global eradication. Introducing IPV during a national multivaccination campaign led to rapid uptake, despite challenges with local vaccine supply due to high wastage rates. Continuous monitoring is required to achieve high coverage with the sequential polio vaccine schedule.


Asunto(s)
Programas de Inmunización , Esquemas de Inmunización , Poliomielitis/epidemiología , Poliomielitis/prevención & control , Vacuna Antipolio de Virus Inactivados/administración & dosificación , Vacuna Antipolio Oral/administración & dosificación , Vacunación/métodos , Brasil/epidemiología , Preescolar , Erradicación de la Enfermedad , Femenino , Humanos , Lactante , Masculino , Vacuna Antipolio de Virus Inactivados/inmunología , Vacuna Antipolio Oral/inmunología , Vacunación/estadística & datos numéricos
11.
JMIR Res Protoc ; 13: e51820, 2024 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-38241071

RESUMEN

BACKGROUND: The aftermath of the COVID-19 pandemic continues to affect millions worldwide, resulting in persisting postvirus complaints and impacting peoples' quality of life. Long COVID, characterized by lingering symptoms like fatigue and mental illness, can extend beyond a few months, necessitating further research to understand its implications. OBJECTIVE: This study aims to quantify the degree of physical and psychological fatigue in patients following COVID-19 infection and examine its correlation with mental health disorders. METHODS: Using a consecutive nonrandom sampling technique, we will conduct a prospective cohort multicenter observational study in 5 Portuguese hospitals. Symptomatic adult patients with previous COVID-19 attending follow-up consultations will be enrolled. We will include patients who had mild, moderate, and severe acute disease. We will assess clinical outcomes related to COVID-19, including the type of respiratory support such as high-flow nasal cannula, noninvasive ventilation, and invasive mechanical ventilation. The exclusion criteria will include previous severe psychiatric disorders confirmed by a psychiatrist; refusal or inability to respond to the questionnaire; concomitant neurological disorder; persistent fatigue symptoms during the 6 months before infection; and the need for invasive mechanical ventilation during COVID-19 infection due to a high prevalence of postintensive care syndrome. Our primary outcome is the prevalence of fatigue in patients with post-COVID-19 depression and/or anxiety, as measured by the Chalder Fatigue Scale (CFQ-11) and the Hospital Anxiety and Depression Scale (HADS). The secondary outcomes will include an assessment of health-related quality of life via the EQ-5D questionnaire and an exploration of the prevalence of symptoms of posttraumatic stress disorder (PTSD) using the 14-item Posttraumatic Stress Scale (PTSS-14). We will also examine the association between mental health symptoms and the severity of acute COVID-19. The post-COVID-19 data will be collected at least 6 months after the positive test and no longer than 9 months during the clinical appointment. RESULTS: We expect our multicenter study on patients post COVID-19 to reveal a significant link between mental illness symptoms and both physical and psychological fatigue. Patients with heightened depression and anxiety may report increased levels of fatigue. Additionally, we expect to find persistent PTSD symptoms in a subset of participants, indicating the enduring psychological impact of the virus. CONCLUSIONS: This study may underscore the need for integrated care addressing physical and mental health in patients post COVID-19. The observed connections emphasize the importance of considering mental well-being for long-term health outcomes. Despite study limitations, our findings contribute valuable insights for future treatment strategies and highlight the necessity for comprehensive mental health support in post-COVID-19 care. This research provides valuable insights into the mental health implications of COVID-19 and its impact on post-COVID-19 fatigue and the overall well-being of affected individuals. TRIAL REGISTRATION: ClinicalTrials.gov NCT05323318; https://clinicaltrials.gov/study/NCT05323318. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/51820.

12.
Nat Commun ; 15(1): 4771, 2024 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-38839755

RESUMEN

Cancer patients often undergo rounds of trial-and-error to find the most effective treatment because there is no test in the clinical practice for predicting therapy response. Here, we conduct a clinical study to validate the zebrafish patient-derived xenograft model (zAvatar) as a fast predictive platform for personalized treatment in colorectal cancer. zAvatars are generated with patient tumor cells, treated exactly with the same therapy as their corresponding patient and analyzed at single-cell resolution. By individually comparing the clinical responses of 55 patients with their zAvatar-test, we develop a decision tree model integrating tumor stage, zAvatar-apoptosis, and zAvatar-metastatic potential. This model accurately forecasts patient progression with 91% accuracy. Importantly, patients with a sensitive zAvatar-test exhibit longer progression-free survival compared to those with a resistant test. We propose the zAvatar-test as a rapid approach to guide clinical decisions, optimizing treatment options and improving the survival of cancer patients.


Asunto(s)
Neoplasias Colorrectales , Pez Cebra , Animales , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/patología , Humanos , Ensayos Antitumor por Modelo de Xenoinjerto , Femenino , Medicina de Precisión/métodos , Masculino , Antineoplásicos/uso terapéutico , Apoptosis/efectos de los fármacos , Supervivencia sin Progresión , Modelos Animales de Enfermedad , Avatar
14.
Brain Circ ; 9(2): 94-98, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37576580

RESUMEN

BACKGROUND: The incidence of spontaneous intracerebral hemorrhage (SICH) is highest in very old elderlies (≥75 years). The increasing use of antithrombotic drugs is shifting the epidemiology of SICH towards predominance of lobar subtype, suggesting an incremented propensity of bleeding associated with underlying cerebral amyloid angiopathy. With population aging and antithrombotic use, a parallel raise of proportion of lobar SICH is occurring. Improvement of prognostication in this specific age group and SICH type is needed. Routine blood biomarkers can contribute to prediction of short-term mortality after SICH. OBJECTIVE: Our aim was to investigate the contribution of routine blood biomarkers for short-term mortality (30-days) in elderly patients with lobar SICH. METHODS: Retrospective analysis of consecutive 130 patients with ≥ 75 years and lobar SICH. The outcome was 30-day mortality. Logistic regression analysis was used to investigate whether admission routine biomarkers can be used as predictors. RESULTS: The case fatality was 40.8%. Admission glycaemia level, neutrophil to lymphocyte ratio and mean platelet volume were significantly different between groups (p = 0.001, p = 0.024, p = 0.038, respectively). There was no significant difference in all other routine biomarkers. On multivariate analysis, admission higher mean BG level (odds ratio [OR]: 1.010, 95% confidence interval [CI]: 1.001-1.019, p = 0.026) and neutrophil to lymphocyte ratio (OR: 1.070, 95% CI: 1.008-1.136, p = 0.027) emerged as predictors. CONCLUSION: In very old patients with lobar SICH, higher BG level and neutrophil to lymphocyte ratio are associated with increased risk of short-term death.

15.
J Knee Surg ; 36(2): 173-180, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34225366

RESUMEN

Tranexamic acid (TXA) is an antifibrinolytic drug that reduces blood loss in patients that undergo Total knee arthroplasty (TKA). Few studies compare its effect on conventional instrumentation (CI) versus patient-specific instrumentation (PSI). The main objective of this study was to understand analytically how TXA usage in both instrumentations influenced blood loss in TKA differently and see if the differences seen could be explained by the patient's body mass index (BMI) and gender. This nonrandomized retrospective study sample consisted of 688 TKA procedures performed on patients who had symptomatic arthrosis resistant to conservative treatment. Descriptive analysis was used to evaluate blood loss using hemoglobin (Hb) mean values and mean variation (%). The Classification and Regression Tree (CRT) method was applied to understand how the independent variables affected the dependent variable. Comparing patients submitted to the same instrumentation, where some received TXA and others did not, patients that received TXA had lower blood loss. Comparing patients who underwent TKA with different instrumentations and without the use of TXA, it was found that patients who underwent TKA with PSI had lower blood loss than those who underwent TKA with CI. However, when these same instruments were compared again, but associated with the use of TXA, the opposite was true with patients undergoing TKA with PSI showing greater blood loss than patients undergoing TKA with CI. TXA usage in TKA is significantly beneficial in minimizing blood loss and regardless of instrumentation. When using TXA, the lowest blood loss was obtained in patients with higher BMI and submitted to TKA with CI. This is most likely explained by the synergistic antifibrotic effect of TXA with adipokines, such as plasminogen activator inhibitor-1 (PAI-1), found in the femoral bone marrow which is perforated using CI. If, however, TXA wasn't used, the lowest blood loss was obtained in patients submitted to TKA with PSI.


Asunto(s)
Antifibrinolíticos , Artroplastia de Reemplazo de Rodilla , Ácido Tranexámico , Humanos , Artroplastia de Reemplazo de Rodilla/efectos adversos , Índice de Masa Corporal , Estudios Retrospectivos , Pérdida de Sangre Quirúrgica/prevención & control , Hemorragia Posoperatoria/prevención & control , Transfusión Sanguínea , Administración Intravenosa
16.
Cancers (Basel) ; 16(1)2023 Dec 28.
Artículo en Inglés | MEDLINE | ID: mdl-38201589

RESUMEN

(1) Background: Relapsed HGSOC with ascites and/or pleural effusion is a poor-prognostic population and poorly represented in clinical studies. We questioned if these patients are worth treating. In other words, if these patients received the most effective treatment, would it change the course of this disease? To our knowledge this is the first real-life study to evaluate this question in this low-survival population. (2) Methods: To tackle this question we performed a retrospective, multi-centric, real-life study, that reviewed relapsed HGSOC patients with ascites and/or pleural effusion. Our rationale was to compare the OS of two groups of patients: responders, i.e., patients who had an imagological response to treatment (complete/partial response/stable disease, RECIST criteria) versus non-responders (no response/progression upon treatment). We evaluated the predictive value of clinical variables that are available in a real-life setting (e.g., staging, chemotherapy, surgery, platinum-sensitivity). Multivariate logistic regression and survival analysis was conducted. A two-step cluster analysis SPSS tool was used for subgroup analysis. Platinum sensitivity/resistance was also analyzed, as well as multivariate and cluster analysis. (3) Results: We included 57 patients, 41.4% first line responders and 59.6% non-responders. The median OS of responders was 23 months versus 8 months in non-responders (p < 0.001). This difference was verified in platinum-sensitive (mOS 28 months vs. 8 months, p < 0.001) and platinum-resistant populations (mOS 16 months vs. 7 months, p < 0.001). Thirty-one patients reached the second line, of which only 10.3% responded to treatment. Three patients out of thirty-one who did not respond in the first line of relapse, responded in the second line. In the second line, the mOS for the responders' group vs. non-responders was 31 months versus 13 months (p = 0.02). The two step cluster analysis tool found two different subgroups with different prognoses based on overall response rate, according to consolidation chemotherapy, neoadjuvant chemotherapy, FIGO staging and surgical treatment. Cluster analysis showed that even patients with standard clinical and treatment variables associated with poor prognosis might achieve treatment response (the opposite being also true). (4) Conclusions: Our data clearly show that relapsed HGSOC patients benefit from treatment. If given an effective treatment upfront, this can lead to a ~3 times increase in mOS for these patients. Moreover, this was irrespective of patient disease and treatment characteristics. Our results highlight the urgent need for a sensitivity test to tailor treatments and improve efficacy rates in a personalized manner.

17.
J Clin Neurosci ; 101: 259-263, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35660959

RESUMEN

INTRODUCTION: Patients with spontaneous intracerebral hemorrhage (SICH) face the worse functional and vital prognosis among all stroke subtypes. In cases of severe SICH, therapeutic inertia or nihilism complicates meaningful identification of outcome predictors. Therefore, we sought to investigate clinic-radiological and process of care predictors of short-term mortality in patients with mild to moderate SICH. PATIENTS AND METHODS: Observational retrospective community representative consecutive case series of patients from Algarve, southern Portugal. Logistic regression was used to identify predictors of short-term (30-day) death. RESULTS: Mortality was 23.9% (111/464). Most important predictors of death were unconsciousness at admission (OR = 12.392, 95% CI = 3.816-40.241, p < 0.001), hospital arrival ≥ 6 h after stroke onset (OR = 2.842, 95% CI = 1.380-5.852, p =.005), hematoma volume > 30 cc/cm3 (OR = 3.295, 95% CI 0 1.561-6.953, p =.002), intraventricular extension (OR = 2.885, 95% CI = 1.457-5.712, p =.002) and ≥ 24 h in the Emergency Department (OR = 19.675, 95% CI = 3.682-34.125, p =.009). Stroke Unit (SU) admission reduced the likelihood of death (OR = 0.293, 95% CI = 0.137-0.682, p =.002). CONCLUSION: The observed mortality is high. Apart from the traditional clinic-radiological factors, in mild to moderate SICH, process of care related factors have strong impact on mortality. These results highlight the need of continuous improvement of SICH care to improve the prognosis.


Asunto(s)
Hemorragia Cerebral , Accidente Cerebrovascular , Hemorragia Cerebral/complicaciones , Hemorragia Cerebral/diagnóstico por imagen , Hemorragia Cerebral/terapia , Hematoma/complicaciones , Humanos , Portugal/epidemiología , Estudios Retrospectivos , Accidente Cerebrovascular/complicaciones
18.
Artículo en Inglés | MEDLINE | ID: mdl-35206432

RESUMEN

One in three people aged 65 years or older falls every year. Injuries associated with this event among the older population are a major cause of pain, disability, loss of functional autonomy and institutionalization. This study aimed to assess mobility and fall risk (FR) in community-living older people and to determine reliable and independent measures (health, social, environmental and risk factors) that can predict the mobility loss and FR. In total, 192 participants were included, with a mean age of 77.93 ± 8.38. FR was assessed by EASY-Care (EC) Standard 2010, the Tinetti Test and the Modified Falls Efficacy Scale (MFES). An exploratory analysis was conducted using the divisive non-hierarchical cluster method, aiming to identify a differentiator and homogeneous group of subjects (optimal group of variables) and to verify if that group shows differences in fall risk. Individually, the health, social, environmental and risk factor categories were not found to be an optimal group; they do not predict FR. The most significant predictor variables were a mix of the different categories, namely, the presence of pain, osteoarthritis (OA), and female gender. The finding of a profile that allows health professionals to be able to quickly identify people at FR will enable a reduction in injuries and fractures resulting from falls and, consequently, the associated costs.


Asunto(s)
Accidentes por Caídas , Fracturas Óseas , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Fracturas Óseas/epidemiología , Humanos , Vida Independiente , Modalidades de Fisioterapia , Factores de Riesgo
19.
Arthritis Care Res (Hoboken) ; 74(5): 768-775, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-33207078

RESUMEN

OBJECTIVE: Our primary objective was to study the long-term association between disease activity and disability in axial spondyloarthritis (SpA). Our secondary objective was to define patient profiles according to their level of disability. METHODS: We analyzed data collected during the first 5 years of follow-up of a large early axial SpA cohort, the Devenir des Spondylarthropathies Indifferénciées Récentes (DESIR) cohort. Multivariable models were built to study the association between the Health Assessment Questionnaire for Ankylosing Spondylitis (HAQ-AS) and the Ankylosing Spondylitis Disease Activity Score with C-reactive protein (ASDAS-CRP), adjusting for potential confounders. Hierarchical multivariable analysis was conducted using the chi-square automatic interaction detector (CHAID) method, to help determine how variables best cluster to explain HAQ-AS. RESULTS: Data from 644 patients and 5,152 visits were analyzed. HAQ-AS was longitudinally, independently, and positively associated with ASDAS-CRP (adjusted B [adjB] 0.205 [95% confidence interval (95% CI) 0.187, 0.222]), the enthesitis score (adjB 0.011 [95% CI 0.008, 0.015]), the Bath Ankylosing Spondylitis Metrology Index (adjB 0.087 [95% CI 0.069, 0.105]), and female sex (adjB 0.172 [95% CI 0.120, 0.225]). The CHAID decision tree revealed ASDAS-CRP as the first variable with discriminative power on HAQ-AS. The cutoffs that separated different patient disability profiles were obtained. CONCLUSION: Disease activity contributes longitudinally to disability and is hierarchically superior to any other variable in explaining this health domain. Enthesitis and spinal mobility are also key drivers of disability in early axial SpA. ASDAS-CRP cutoffs that separated different patient disability profiles largely mimicked the cutoffs previously defined for ASDAS-CRP disease activity states.


Asunto(s)
Espondiloartritis Axial , Espondiloartritis , Espondilitis Anquilosante , Dolor de Espalda , Proteína C-Reactiva/análisis , Femenino , Humanos , Índice de Severidad de la Enfermedad , Espondiloartritis/complicaciones , Espondiloartritis/diagnóstico , Espondilitis Anquilosante/complicaciones , Espondilitis Anquilosante/diagnóstico
20.
Clin Neurol Neurosurg ; 221: 107387, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35917730

RESUMEN

INTRODUCTION: Following the hyperacute phase of spontaneous intracerebral hemorrhage (SICH), the severest form of stroke, pneumonia emerges as the leading cause of morbidity and mortality. Prevention of stroke associated pneumonia (SAP) is fundamental to improve the prognosis of SICH patients. AIM: Identify clinical, sociodemographic and process of care factors associated with occurrence of SAP after SICH in Algarve, southern Portugal. METHODS: Observational, retrospective study of community representative consecutive case series of patients with SICH admitted to the sole public hospital in the region. Logistic regression was used to identify predictors of SAP after SICH. RESULTS: A total of 525 patients were included. The mean age was 71 ( ± 13) years and 64% were men. SAP occurred in 165 (31.5%). Lower Glasgow Coma Scale score (GCS score): ≤ 8 (OR= 2.087; 95% CI= [1.027;4.424]; p = 0.042) and GCS 9-12 (OR= 1.775; 95% CI= [1.030;3.059]; p = 0.039); prolonged emergency room stay (OR= 8.066; 95%CI=[3.082;21.113]; p < 0.001) and hyperactive delirium (OR=2.860; 95% CI= [1.661;4.925]; p < 0.001) increased the likelihood of SAP. Being younger, ≤ 59 years (OR= 0.391; 95% CI= [0.168; 0.911]; p = 0.029) and 60-71 years (OR= 0.389; 95% CI= [0.185; 0.818]; p = 0.013); and having less severe SICH/intracerebral hemorrhage score (ICH score) ≤ 2 (OR=0.601; 95% CI= [0.370; 0.975]; p = 0.039), decreased the risk of SAP. CONCLUSION: After SICH, SAP occurs in approximately a third of patients. Non preventable (admission severity, ageing) and potentially preventable (prolonged emergency room stay, hyperactive delirium) determine the occurrence of SAP. Intensification of preventive intervention in high-risk patients, delirium prevention and improvement of the process of care can potentially reduce the occurrence of SAP after SICH.


Asunto(s)
Delirio , Neumonía , Accidente Cerebrovascular , Anciano , Hemorragia Cerebral/complicaciones , Hemorragia Cerebral/epidemiología , Delirio/complicaciones , Femenino , Humanos , Masculino , Neumonía/complicaciones , Neumonía/epidemiología , Portugal/epidemiología , Estudios Retrospectivos , Accidente Cerebrovascular/complicaciones
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