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1.
Thorax ; 2024 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-38768985

RESUMEN

INTRODUCTION: Lung graft allocation can be based on a score (Lung Allocation Score) as in the USA or sequential proposals combined with a discrete priority model as in France. We aimed to analyse the impact of allocation policy on the outcome of urgent lung transplantation (LT). METHODS: US United Network for Organ Sharing (UNOS) and French Cristal databases were retrospectively reviewed to analyse LT performed between 2007 and 2017. We analysed the mortality risk of urgent LT by fitting Cox models and adjusted Restricted Mean Survival Time. We then compared the outcome after urgent LT in the UNOS and Cristal groups using a propensity score matching. RESULTS: After exclusion of patients with chronic obstructive pulmonary disease/emphysema and redo LT, 3775 and 12 561 patients underwent urgent LT and non-urgent LT in the USA while 600 and 2071 patients underwent urgent LT and non-urgent LT in France. In univariate analysis, urgent LT was associated with an HR for death of 1.24 (95% CI 1.05 to 1.48) in the Cristal group and 1.12 (95% CI 1.05 to 1.19) in the UNOS group. In multivariate analysis, the effect of urgent LT was attenuated and no longer statistically significant in the Cristal database (HR 1.1 (95% CI 0.91 to 1.33)) while it remained constant and statistically significant in the UNOS database (HR 1.12 (95% CI 1.05 to 1.2)). Survival comparison of urgent LT patients between the two countries was significantly different in favour of the UNOS group (1-year survival rates 84.1% (80.9%-87.3%) vs 75.4% (71.8%-79.1%) and 3-year survival rates 66.3% (61.9%-71.1%) vs 62.7% (58.5%-67.1%), respectively). CONCLUSION: Urgent LT is associated with adverse outcome in the USA and in France with a better prognosis in the US score-based system taking post-transplant survival into account. This difference between two healthcare systems is multifactorial.

2.
JACC Case Rep ; 29(6): 102237, 2024 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-38549851

RESUMEN

We report a case of a 16-year-old man in cardiogenic shock secondary to On-X mitral prosthesis dysfunction due to leaflet embolization through aortic mechanical prosthesis. He underwent an emergency redo mitral valve replacement and, a few days later, leaflet removal by open aortic surgery with full recovery.

3.
J Robot Surg ; 18(1): 124, 2024 Mar 16.
Artículo en Inglés | MEDLINE | ID: mdl-38492119

RESUMEN

Robotic-assisted thoracic surgery (RATS) is an effective treatment of non-small cell lung cancer (NSCLC) but the effects of its implementation in university hospital networks has not been described. We analyzed the early clinical outcomes, estimated costs, and revenues associated with three robotic systems implemented in the Paris Public Hospital network. A retrospective study included patients who underwent RATS for NSCLC in 2019 and 2020. Ninety-day morbidity, mortality, hospital costs, and hospital revenues were described. Economic analyses were conducted either from the hospital center or from the French health insurance system perspectives. Cost drivers were tested using univariate and multivariable analyses. Sensitivity analyses were performed to assess uncertainty over in-hospital length of stay (LOS), number of robotic surgeries per year, investment cost, operating room occupancy time, maintenance cost, and commercial discount. The study included 188 patients (65.8 ± 9.3 years; Charlson 4.1 ± 1.4; stage I 76.6%). Median in-hospital LOS was 6 days [5-9.5], 90-day mortality was 1.6%. Mean hospital expenses and revenues were €12,732 ± 4914 and €11,983 ± 5708 per patient, respectively. In multivariable analysis, factors associated with hospital costs were body mass index, DLCO, major complications, and transfer to intensive care unit. Sensitivity analyses showed that in-hospital LOS (€11,802-€15,010) and commercial discounts on the list price (€11,458-€12,732) had an important impact on costs. During the first 2 years following the installation of three robotic systems in Paris Public Hospitals, the clinical outcomes of RATS for NSCLC have been satisfactory. Without commercial discount, hospital expenses would have exceeded hospital revenues.Clinical registration number CNIL, N°2221601, CERC-SFCTCV-2021-07-20-Num17_MOPI_robolution.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Procedimientos Quirúrgicos Robotizados , Cirugía Torácica , Humanos , Procedimientos Quirúrgicos Robotizados/métodos , Carcinoma de Pulmón de Células no Pequeñas/cirugía , Estudios Retrospectivos , Neoplasias Pulmonares/cirugía , Tiempo de Internación , Hospitales Públicos
4.
BMJ Open ; 14(3): e077770, 2024 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-38448059

RESUMEN

INTRODUCTION: Lung transplantation (LTx) aims at improving survival and quality of life for patients with end-stage lung diseases. Venoarterial extracorporeal membrane oxygenation (VA-ECMO) is used as intraoperative support for LTx, despite no precise guidelines for its initiation. We aim to evaluate two strategies of VA-ECMO initiation in the perioperative period in patients with obstructive or restrictive lung disease requiring bilateral LTx. In the control 'on-demand' arm, high haemodynamic and respiratory needs will dictate VA-ECMO initiation; in the experimental 'systematic' arm, VA-ECMO will be pre-emptively initiated. We hypothesise a 'systematic' strategy will increase the number of ventilatory-free days at day 28. METHODS AND ANALYSIS: We designed a multicentre randomised controlled trial in parallel groups. Adult patients with obstructive or restrictive lung disease requiring bilateral LTx, without a formal indication for pre-emptive VA-ECMO before LTx, will be included. Patients with preoperative pulmonary hypertension with haemodynamic collapse, ECMO as a bridge to transplantation, severe hypoxaemia or hypercarbia will be secondarily excluded. In the systematic group, VA-ECMO will be systematically implanted before the first pulmonary artery cross-clamp. In the on-demand group, VA-ECMO will be implanted intraoperatively if haemodynamic or respiratory indices meet preplanned criteria. Non-inclusion, secondary exclusion and VA-ECMO initiation criteria were validated by a Delphi process among investigators. Postoperative weaning of ECMO and mechanical ventilation will be managed according to best practice guidelines. The number of ventilator-free days at 28 days (primary endpoint) will be compared between the two groups in the intention-to-treat population. Secondary endpoints encompass organ failure occurrence, day 28, day 90 and year 1 vital status, and adverse events. ETHICS AND DISSEMINATION: The sponsor is the Assistance Publique-Hôpitaux de Paris. The ECMOToP protocol version 2.1 was approved by Comité de Protection des Personnes Ile de France VIII. Results will be published in international peer-reviewed medical journals. TRIAL REGISTRATION NUMBER: NCT05664204.


Asunto(s)
Oxigenación por Membrana Extracorpórea , Hipertensión Pulmonar , Trasplante de Pulmón , Adulto , Humanos , Calidad de Vida , Morbilidad , Hipertensión Pulmonar/terapia , Ensayos Clínicos Controlados Aleatorios como Asunto , Estudios Multicéntricos como Asunto
6.
PLoS One ; 18(12): e0295408, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38055674

RESUMEN

AIMS: IgE type immunoglobulins and their specific effector cells, mast cells (MCs), are associated with abdominal aortic aneurysm (AAA) progression. In parallel, immunoglobulin-producing B cells, organised in tertiary lymphoid organs (TLOs) within the aortic wall, have also been linked to aneurysmal progression. We aimed at investigating the potential role and mechanism linking local MCs, TLO B cells, and IgE production in aneurysmal progression. METHODS AND RESULTS: Through histological assays conducted on human surgical samples from AAA patients, we uncovered that activated MCs were enriched at sites of unhealed haematomas, due to subclinical aortic wall fissuring, in close proximity to adventitial IgE+ TLO B cells. Remarkably, in vitro the IgEs deriving from these samples enhanced MC production of IL-4, a cytokine which favors IgE class-switching and production by B cells. Finally, the role of MCs in aneurysmal progression was further analysed in vivo in ApoE-/- mice subjected to angiotensin II infusion aneurysm model, through MC-specific depletion after the establishment of dissecting aneurysms. MC-specific depletion improved intramural haematoma healing and reduced aneurysmal progression. CONCLUSIONS: Our data suggest that MC located close to aortic wall fissures are activated by adventitial TLO B cell-produced IgEs and participate to their own activation by providing support for further IgE synthesis through IL-4 production. By preventing prompt repair of aortic subclinical fissures, such a runaway MC activation loop could precipitate aneurysmal progression, suggesting that MC-targeting treatments may represent an interesting adjunctive therapy for reducing AAA progression.


Asunto(s)
Aneurisma de la Aorta Abdominal , Mastocitos , Humanos , Ratones , Animales , Mastocitos/metabolismo , Interleucina-4/metabolismo , Ratones Noqueados para ApoE , Aneurisma de la Aorta Abdominal/patología , Inmunoglobulina E/metabolismo , Modelos Animales de Enfermedad , Aorta Abdominal/patología , Angiotensina II/metabolismo , Ratones Endogámicos C57BL
7.
Emerg Med J ; 40(12): 821-825, 2023 Nov 28.
Artículo en Inglés | MEDLINE | ID: mdl-37673644

RESUMEN

BACKGROUND: While the role of Extended Focused Assessment with Sonography in Trauma (eFAST) is well defined in the management of severe blunt trauma, its performance in injuries caused by stab wounds has been poorly assessed. METHODS: Prospective single centre study which included all patients with stab wounds to the thorax or abdomen between December 2016 and December 2018. All patients underwent initial investigation with both eFAST and CT scan, except in cases of haemodynamic or respiratory instability, and in cases with a positive diagnosis by eFAST in which case surgery without CT scan was performed. RESULTS: Of the 200 consecutive patients included, 14 unstable patients underwent surgery immediately after eFAST. In these 14 patients, 9 had cardiac tamponade identified by eFAST and all were confirmed by surgery. In the remaining 186 patients, the median time between eFAST and CT scan was 30 min (IQR 20-49 min). Test characteristics (including 95% CI) for eFAST compared with reference standard of CT scan for detecting pneumothorax were as follows: sensitivity 77% (54%-92%), specificity 93% (90%-97%), positive predictive value (PPV) 60% (49%-83%), negative predictive value (NPV) 97% (93%-99%). Test characteristics (including 95% CI) for eFAST compared with CT scan for detecting haemothorax were as follows: sensitivity 97% (74%-99%), specificity 96% (92%-98%), PPV 83% (63%-93%) and NPV 99% (96%-100%). Finally, test characteristics (including 95% CI) for eFAST compared with CT scan for detecting haemoperitoneum were as follows: sensitivity 75% (35%-97%), specificity 97% (93%-99%), PPV 55% (23%-83%) and NPV 99% (96%-99%). CONCLUSIONS: In patients admitted with stab wounds to the torso, eFAST was not sensitive enough to diagnose pneumothorax and haemoperitoneum, but performed better in the detection of cardiac tamponade and haemothorax than the other injuries. More robust multicentre studies are needed to better define the role of eFAST in this specific population.


Asunto(s)
Traumatismos Abdominales , Taponamiento Cardíaco , Neumotórax , Traumatismos Torácicos , Heridas no Penetrantes , Heridas Punzantes , Humanos , Neumotórax/diagnóstico por imagen , Neumotórax/etiología , Estudios Prospectivos , Hemotórax/etiología , Hemotórax/complicaciones , Taponamiento Cardíaco/complicaciones , Hemoperitoneo/etiología , Hemoperitoneo/complicaciones , Traumatismos Torácicos/diagnóstico por imagen , Traumatismos Torácicos/complicaciones , Sensibilidad y Especificidad , Ultrasonografía , Traumatismos Abdominales/diagnóstico por imagen , Heridas no Penetrantes/diagnóstico por imagen , Heridas no Penetrantes/complicaciones , Heridas Punzantes/complicaciones , Heridas Punzantes/diagnóstico por imagen
10.
J Endovasc Ther ; : 15266028231188868, 2023 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-37515490

RESUMEN

INTRODUCTION: The retrograde puncture of a distal artery is considered a bailout procedure in case of anterograde approach failure for peripheral artery disease (PAD) treatment. A single primary retrograde access has been suggested as an efficient and safe option. As scant data are available, we present our results using this approach. MATERIAL AND METHODS: Between August 2019 and October 2022, we performed this technique in selected patients with femoro-popliteal PAD. Chronic total occlusions (CTOs) were selected on the basis of the CTOP classification. An ultrasound-guided retrograde puncture of a tibial artery at the ankle level was performed, followed by the preferential use of 4F materials. Hemostasis of the puncture site was obtained using manual compression. Postoperative duplex scan examination systematically included an evaluation of the punctured artery. Demographics, intraoperative, and follow-up data were collected retrospectively. The results are expressed as means with standard deviations and numbers with percentages when appropriate. RESULTS: In total, 55 procedures were performed in 46 patients (9 bilateral). Of these, 57% (N=26) were considered at risk for femoral puncture (obesity, history of groin surgery, challenging crossover approach) and 54% (N=25) presented with critical limb-threatening ischemia (CLTI). The TASC-II femoro-popliteal classification was generally B (60%) and also C (33%) or D (7%). Mean lesion length was 105.6±49.4 mm and 65% were CTOs. Most patients were operated in an outpatient setting (N=25; 54%) under potentialized local anesthesia (N=41, 89%). The punctured site was the posterior tibial artery in 73% (N=40). The procedure time was 65.1±25.7 minutes, and the fluoroscopy time was 10.7±8.5 minutes. The technical success rate was 100%. There were no intraoperative complications. All patients could walk the same day. One CLTI patient presented an erysipelas related to the puncture in postoperative period. At 30 days, the primary patency of the treated and the punctured arteries were 98% and 100%, respectively. CONCLUSION: A single primary retrograde access can be used safely to treat femoro-popliteal PAD. It represents a valuable alternative to the femoral puncture and allows fast ambulation. Prospective and long-term studies on larger populations are necessary to confirm our results. CLINICAL IMPACT: This study demonstrates that a single primary retrograde access can be used safely without damaging the punctured artery to treat femoro-popliteal lesions, especially in claudicant patients. Chronic total occlusions can be treated successfully using this technique. This approach represents a valuable alternative to the femoral puncture and allows fast ambulation without risk of major bleeding.

11.
World J Emerg Surg ; 18(1): 37, 2023 06 07.
Artículo en Inglés | MEDLINE | ID: mdl-37287011

RESUMEN

BACKGROUND: Early diagnosis of acute mesenteric ischemia (AMI) is essential for a favorable outcome. Selection of patients requiring a dedicated multiphasic computed tomography (CT) scan remains a clinical challenge. METHODS: In this cross-sectional diagnostic study conducted from 2016 to 2018, we compared the presentation of AMI patients admitted to an intestinal stroke center to patients with acute abdominal pain of another origin admitted to the emergency room (controls). RESULTS: We included 137 patients-52 with AMI and 85 controls. Patients with AMI [median age: 65 years (interquartile range 55-74)] had arterial and venous AMI in 65% and 35% of cases, respectively. Relative to controls, AMI patients were significantly older, more likely to have risk factors or a history of cardiovascular disease, and more likely to present with sudden-onset and morphine-requiring abdominal pain, hematochezia, guarding, organ dysfunction, higher white blood cell and neutrophil counts, and higher plasma C-reactive protein (CRP) and procalcitonin concentrations. On multivariate analysis, two independent factors were associated with the diagnosis of AMI: the sudden-onset (OR = 20, 95%CI 7-60, p < 0.001) and the morphine-requiring nature of the acute abdominal pain (OR = 6, 95%CI 2-16, p = 0.002). Sudden-onset and/or morphine-requiring abdominal pain was present in 88% of AMI patients versus 28% in controls (p < 0.001). The area under the receiver operating characteristic curve for the diagnosis of AMI was 0.84 (95%CI 0.77-0.91), depending on the number of factors. CONCLUSIONS: Sudden onset and the need for morphine are suggestive of AMI in patients with acute abdominal pain and should prompt multiphasic CT scan including arterial and venous phase images for confirmation.


Asunto(s)
Abdomen Agudo , Isquemia Mesentérica , Accidente Cerebrovascular , Humanos , Anciano , Isquemia Mesentérica/diagnóstico , Abdomen Agudo/diagnóstico , Estudios Transversales , Dolor Abdominal , Accidente Cerebrovascular/complicaciones , Derivados de la Morfina
12.
Front Med (Lausanne) ; 10: 1160621, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37228395

RESUMEN

Background: Risk factors and the incidence of prolonged mechanical ventilation (PMV) after lung transplantation (LT) have been poorly described. The study assessed predictive factors of PMV after LT. Methods: This observational, retrospective, monocentric study included all patients who received LT in Bichat Claude Bernard Hospital between January 2016 and December 2020. PMV was defined as a duration of MV > 14 days. Independent risk factors for PMV were studied using multivariate analysis. One-year survival depending on PMV was studied using Kaplan Meier and log-rank tests. A p value <0.05 was defined as significant. Results: 224 LT recipients were analysed. 64 (28%) of them received PMV for a median duration of 34 [26-52] days versus 2 [1-3] days without PMV. Independent risk factors for PMV were higher body mass index (BMI) (p = 0.031), diabetes mellitus of the recipient (p = 0.039), ECMO support during surgery (p = 0.029) and intraoperative transfusion >5 red blood cell units (p < 0.001). Increased mortality rates were observed at one-year in recipients who received PMV (44% versus 15%, p < 0.001). Conclusion: PMV was associated with increased morbidity and mortality one-year after LT. Preoperative risk factors (BMI and diabetes mellitus) must be considered when selecting and conditioning the recipients.

13.
Chest ; 163(5): e223-e229, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-37164587

RESUMEN

CASE PRESENTATION: A 24-year-old Senegalese woman without remarkable history except anemia and iron deficiency related to excessive menstrual bleeding and sickle cell trait was admitted to our internal medicine department with 4-month fever, weight loss (-13 kg), dyspnea for limited efforts, intermittent productive cough, and bilateral metacarpophalangeal (MCP) and interphalangeal arthralgia. She was born and lived in France. She traveled previously to Senegal in 2015. She had no history of tobacco, alcohol, or drug use nor proximity with animals. She was taking no medication.


Asunto(s)
Tos , Disnea , Femenino , Humanos , Tos/diagnóstico , Tos/etiología , Artralgia/diagnóstico , Artralgia/etiología , Francia , Diagnóstico Diferencial
15.
Eur J Pharmacol ; 946: 175579, 2023 May 05.
Artículo en Inglés | MEDLINE | ID: mdl-36914083

RESUMEN

Pulmonary hypertension (PH) is associated with pulmonary vasoconstriction and endothelial dysfunction leading to impaired nitric oxide (NO) and prostacyclin (PGI2) pathways. Metformin, the first line treatment for type 2 diabetes and AMP-activated protein kinase (AMPK) activator, has been recently highlighted as a potential PH treatment. AMPK activation has been reported to improve endothelial function by enhancing endothelial NO synthase (eNOS) activity and to have relaxant effects in blood vessels. In this study, we examined the effect of metformin treatment on PH as well as on NO and PGI2 pathways in monocrotaline (MCT)-injected rats with established PH. Moreover, we investigated the anti-contractile effects of AMPK activators on endothelium-denuded human pulmonary arteries (HPA) from Non-PH and Group 3 PH patients (due to lung diseases and/or hypoxia). Furthermore, we explored the interaction between treprostinil and the AMPK/eNOS pathway. Our results showed that metformin protected against PH progression in MCT rats where it reduced the mean pulmonary artery pressure, pulmonary vascular remodeling and right ventricular hypertrophy and fibrosis compared to vehicle-treated MCT rats. The protective effects on rat lungs were mediated in part by increasing eNOS activity and protein kinase G-1 expression but not through the PGI2 pathway. In addition, incubation with AMPK activators reduced the phenylephrine-induced contraction of endothelium-denuded HPA from Non-PH and PH patients. Finally, treprostinil also augmented eNOS activity in HPA smooth muscle cells. In conclusion, we found that AMPK activation can enhance the NO pathway, attenuate vasoconstriction by direct effects on smooth muscles, and reverse established MCT-induced PH in rats.


Asunto(s)
Diabetes Mellitus Tipo 2 , Hipertensión Pulmonar , Metformina , Ratas , Humanos , Animales , Hipertensión Pulmonar/inducido químicamente , Hipertensión Pulmonar/tratamiento farmacológico , Hipertensión Pulmonar/prevención & control , Arteria Pulmonar , Metformina/efectos adversos , Proteínas Quinasas Activadas por AMP/metabolismo , Diabetes Mellitus Tipo 2/metabolismo , Monocrotalina/efectos adversos
16.
Transpl Int ; 36: 10942, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36936442

RESUMEN

Corynebacterium spp. are associated with respiratory infections in immunocompromised hosts. A link with bronchial complications after lung transplantation (LTx) has been suggested. We aimed to assess the link between respiratory sampling of Corynebacterium spp. and significant bronchial complication (SBC) after LTx. We performed a single center retrospective study. Inclusion of LTx recipients with at least one respiratory Corynebacterium spp. sample (July 2014 to December 2018). Subjects were matched to unexposed LTx recipients. Primary outcome was SBC occurrence after Corynebacterium spp. isolation. Secondary outcomes were Corynebacterium spp. persistent sampling, chronic lung allograft dysfunction (CLAD) onset and all-cause mortality. Fifty-nine patients with Corynebacterium spp. sampling with 59 without isolation were included. Corynebacterium spp. identification was not associated with SBC occurrence (32.4% vs. 21.6%, p = 0.342). Previous SBC was associated with further isolation of Corynebacterium spp. (OR 3.94, 95% CI [1.72-9.05]). Previous SBC and corticosteroids pulses in the last 3 months were the only factors associated with increased risk of Corynebacterium spp. isolation in multivariate analysis. Corynebacterium spp. sampling was significantly associated with CLAD onset (27.1% vs. 6.9%, p = 0.021). Corynebacterium spp. isolation was not associated with SBC but with higher risk of CLAD. Whether CLAD evolution is affected by Corynebacterium spp. eradication remains to be investigated.


Asunto(s)
Trasplante de Pulmón , Infecciones del Sistema Respiratorio , Humanos , Estudios Retrospectivos , Trasplante de Pulmón/efectos adversos , Pulmón , Infecciones del Sistema Respiratorio/complicaciones , Corynebacterium
17.
Eur J Vasc Endovasc Surg ; 65(6): 802-808, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36736617

RESUMEN

OBJECTIVE: The aim of this study was to propose computed tomography angiography (CTA) based anatomical segmentation of the superior mesenteric artery (SMA), in order to standardise the reporting of occlusive lesions in acute mesenteric ischaemia (AMI). METHODS: A retrospective CTA evaluation of patients with occlusive AMI admitted between 2016 and 2021. After the screening of 468 patients, 95 were included. The SMA was segmented into proximal (S1, ostium to the inferior pancreaticoduodenal artery), middle (S2, from the inferior pancreaticoduodenal to the ileocolic artery), and distal (S3, downstream the ileocolic artery) sections. The jejunal arteries were labelled J1 to J6, and the middle, right, and ileocolic arteries C1, C2, and C3. Two radiologists independently applied the proposed segmentation to a cohort of patients with occlusive AMI to describe occlusive lesions. Intra- and inter-rater agreement was assessed with kappa statistics. RESULTS: Occlusions involved one segment in 50 (53%) patients (S1, n = 27 [28%]; S2, n = 12 [13%]; S3, n = 11 [12%]); two segments in 37 (39%) patients (S2/S3, n = 31 [33%]; S1/S2, n = 3 [3%]; S1/S3, n = 3 [3%]); and all three segments in eight patients (S1/S2/S3, 8%). The median number of jejunal arteries was four (interquartile range 3, 4.5). C1 and C2 were present in 93 (98%) and 23 patients (24%), respectively. Almost perfect intra-rater agreement was obtained for S1 (91% agreement, κ = 0.82, 95% confidence interval [CI] 0.72 - 0.92); substantial agreement was obtained for S2 (90% agreement, κ = 0.80, 95% CI 0.68 - 0.92) and S3 (86% agreement, κ = 0.72, 95% CI 0.58 - 0.86). Almost perfect inter-rater agreement (with the second junior reading) was obtained for S1 (97% agreement, κ = 0.95, 95% CI 0.89 - 1.0), S2 (91% agreement, κ = 0.82, 95% CI 0.72 - 0.92), and S3 (agreement 96%, κ = 0.91, 95% CI 0.83 - 0.99). CONCLUSION: A standardised CTA based anatomical segmental description of SMA occlusive lesions in AMI is proposed; it provided substantial to almost perfect intra- and inter-rater agreement for most anatomical segments.


Asunto(s)
Isquemia Mesentérica , Humanos , Isquemia Mesentérica/diagnóstico por imagen , Arteria Mesentérica Superior/diagnóstico por imagen , Estudios Retrospectivos , Angiografía por Tomografía Computarizada/métodos , Angiografía , Isquemia
18.
Transpl Int ; 36: 10826, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36846604

RESUMEN

The prevalence, risk factors and outcomes associated with culture-positive preservation fluid (PF) after lung transplantation (LT) are unknown. From January 2015 to December 2020, the microbiologic analyses of PF used to store the cold ischaemia-placed lung graft(s) of 271 lung transplant patients were retrospectively studied. Culture-positive PF was defined as the growth of any microorganism. Eighty-three (30.6%) patients were transplanted with lung grafts stored in a culture-positive PF. One-third of culture-positive PF were polymicrobial. Staphylococcus aureus and Escherichia coli were the most frequently isolated microorganisms. No risk factors for culture-positive PF based on donor characteristics were identified. Forty (40/83; 48.2%) patients had postoperative pneumonia on Day 0 and 2 (2/83; 2.4%) patients had pleural empyema with at least one identical bacteria isolated in culture-positive PF. The 30-day survival rate was lower for patients with culture-positive PF compared with patients with culture-negative PF (85.5% vs. 94.7%, p = 0.01). Culture-positive PF has a high prevalence and may decrease lung transplant recipient survival. Further studies are required to confirm these results and improve understanding of the pathogenesis of culture-positive PF and their management.


Asunto(s)
Trasplante de Pulmón , Humanos , Estudios Retrospectivos , Trasplante de Pulmón/efectos adversos , Morbilidad , Factores de Riesgo
19.
Transpl Int ; 36: 10841, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36726695

RESUMEN

High-density lipoproteins (HDLs), whose main role is the reverse transport of cholesterol, also have pleiotropic anti-inflammatory, antioxidant, anti-apoptotic and anti-infectious properties. During sepsis, HDL cholesterol (HDL-C) concentration is low, HDL particle functionality is altered, and these modifications are correlated with poor outcomes. Based on the protective effects of HDL, we hypothesized that HDL-C levels could be associated with lung transplantation (LT) outcome. We thus looked for an association between basal HDL-C concentration and one-year mortality after LT. In this single-center prospective study including consecutive LTs from 2015 to 2020, 215 patients were included, essentially pulmonary fibrosis (47%) and chronic obstructive pulmonary disease (COPD) (38%) patients. Mortality rate at one-year was 23%. Basal HDL-C concentration stratified nonsurvivors to survivors at one-year (HDL-C = 1.26 [1.12-1.62] mmol/L vs. HDL-C = 1.55 [1.22-1.97] mmol/L, p = 0.006). Multivariate analysis confirmed that HDL-C concentration during the pretransplant assessment period was the only variable inversely associated with mortality. Moreover, mortality at one-year in patients with HDL-C concentrations ≤1.45 mmol/L was significantly higher (log-rank test, p = 0.00085). In conclusion, low basal HDL-C concentrations in candidates for LT are strongly associated with mortality after LT. To better understand this association, further studies in this field are essential and, in particular, a better characterization of HDL particles seems necessary.


Asunto(s)
Colesterol , Trasplante de Pulmón , Humanos , Estudios Prospectivos , HDL-Colesterol , Análisis Multivariante
20.
Resuscitation ; 184: 109720, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36740093

RESUMEN

BACKGROUND: The outcomes of lung transplantation (LT) recipients who received a graft from a brain-dead donor after successful resuscitation from cardiac arrest (CA donors) have been poorly described. This study compared the one-year survival of LT recipients depending on the CA status of the donor. METHODS: This prospective observational single-centre study analysed all consecutive patients who underwent LT at Bichat Claude Bernard Hospital, Paris, between January 2016 and December 2020. All donors who experienced CA prior to organ donation, regardless of rhythm or duration, were considered CA donors. The postoperative complications and outcomes of LT recipients were analysed. The one-year survival was compared using Kaplan-Meier curves and log-rank tests. Independent risk factors for one-year mortality were assessed using multivariate analysis (p < 0.05 was considered significant). The Paris North Hospitals Institutional Review Board approved the study. RESULTS: A total of 236 LT recipients were analysed and 66 (28%) received a graft from a CA donor. The median durations of no/low flow were 4 [0-10]/20 [15-30] minutes, respectively. Shockable and non-shockable rhythms were observed in 11 (17%) and 47 (72%) of the CA donors, respectively. The characteristics of the grafts and early postoperative complications were not different in the CA and non-CA groups. Receiving a graft from a CA donor was not an independent risk factor for recipient one-year mortality. CONCLUSION: Receiving a graft from a CA donor did not worsen the outcome of LT recipients. Acceptation of these grafts must be systematically considered to increase the pool of available grafts.


Asunto(s)
Paro Cardíaco , Trasplante de Hígado , Humanos , Trasplante de Hígado/efectos adversos , Donantes de Tejidos , Paro Cardíaco/complicaciones , Muerte Encefálica , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Pulmón , Encéfalo , Supervivencia de Injerto , Estudios Retrospectivos , Resultado del Tratamiento
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