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1.
Gastroenterology ; 165(5): 1249-1261.e5, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37549753

RESUMEN

BACKGROUND & AIMS: Endoscopic ultrasound-guided choledochoduodenostomy with a lumen-apposing metal stent (EUS-CDS) is a promising modality for management of malignant distal biliary obstruction (MDBO) with potential for better stent patency. We compared its outcomes with endoscopic retrograde cholangiopancreatography with metal stenting (ERCP-M). METHODS: In this multicenter randomized controlled trial, we recruited patients with MDBO secondary to borderline resectable, locally advanced, or unresectable peri-ampullary cancers across 10 Canadian institutions and 1 French institution. This was a superiority trial with a noninferiority assessment of technical success. Patients were randomized to EUS-CDS or ERCP-M. The primary end point was the rate of stent dysfunction at 1 year, considering competing risks of death, clinical failure, and surgical resection. Analyses were performed according to intention-to-treat principles. RESULTS: From February 2019 to February 2022, 144 patients were recruited; 73 were randomized to EUS-CDS and 71 were randomized to ERCP-M. The mean (SD) procedure time was 14.0 (11.4) minutes for EUS-CDS and 23.1 (15.6) minutes for ERCP-M (P < .01); 40% of the former was performed without fluoroscopy. Technical success was achieved in 90.4% (95% CI, 81.5% to 95.3%) of EUS-CDS and 83.1% (95% CI, 72.7% to 90.1%) of ERCP-M with a risk difference of 7.3% (95% CI, -4.0% to 18.8%) indicating noninferiority. Stent dysfunction occurred in 9.6% vs 9.9% of EUS-CDS and ERCP-M cases, respectively (P = .96). No differences in adverse events, pancreaticoduodenectomy and oncologic outcomes, or quality of life were noted. CONCLUSIONS: Although not superior in stent function, EUS-CDS is an efficient and safe alternative to ERCP-M in patients with MDBO. These findings provide evidence for greater adoption of EUS-CDS in clinical practice as a complementary and exchangeable first-line modality to ERCP in patients with MDBO. CLINICALTRIALS: gov, Number: NCT03870386.

2.
J Vasc Interv Radiol ; 35(6): 818-824, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38789204

RESUMEN

Hepatocellular carcinoma, historically, has had a poor prognosis with very few systemic options. Furthermore, most patients at diagnosis are not surgical candidates. Therefore, locoregional therapy (LRT) has been widely used, with strong data supporting its use. Over the last 15 years, there has been progress in the available systemic agents. This has led to the updated Barcelona Clinic Liver Cancer (BCLC) algorithm's inclusion of these new systemic agents, with advocacy of earlier usage in those who progress on LRT or have tumor characteristics that make them less likely to benefit from LRT. However, neither the adjunct of LRT nor the specific sequencing of combination therapies is addressed directly. This Research Consensus Panel sought to highlight research priorities pertaining to the combination and optimal sequencing of LRT and systemic therapy, assessing the greatest needs across BCLC stages.


Asunto(s)
Investigación Biomédica , Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/terapia , Carcinoma Hepatocelular/patología , Quimioembolización Terapéutica/normas , Consenso , Neoplasias Hepáticas/terapia , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/diagnóstico por imagen , Estadificación de Neoplasias , Resultado del Tratamiento
3.
CMAJ ; 196(3): E79-E84, 2024 Jan 28.
Artículo en Inglés | MEDLINE | ID: mdl-38286494

RESUMEN

BACKGROUND: Since the implementation of medical assistance in dying (MAiD), deceased organ donation after MAiD has been possible in Quebec. We sought to describe organ donations after MAiD in the first 5 years after this practice was implemented in Quebec. METHODS: We reviewed all cases referred for donation after MAiD from January 2018 to December 2022. We presented all data descriptively with no comparison statistics. RESULTS: Transplant Québec received 245 referrals for donation after MAiD, of which 82 were retained (33.5%). Of the 163 nonretained referrals, 152 (93.2%) had a recorded reason, including 91 (55.8%) for medical unsuitability on initial screen (e.g., organ dysfunction, medical history), 34 (20.8%) for patient refusal and 21 (12.9%) instances where patients withdrew from the MAiD process entirely. Six patients died before MAiD. Eighteen of the 82 retained cases were cancelled later in the process, almost all (n = 17, 94.4%) because of medical contraindication discovered during detailed donor evaluation. Sixty-four patients became actual donors after MAiD, increasing from 8 in 2018 to 24 in 2022. The total conversion rate from referral to an actual donor was 26.1% (64/245). A total of 182 organs (116 kidneys, 20 livers and 46 lungs) were transplanted after MAiD. During the study period, MAiD donors represented 8.0% (64/803) of total deceased donors, increasing from 4.9% (8/164) in 2018 to 14.0% (24/171) in 2022. INTERPRETATION: These data describe a substantial increase in deceased donation after MAiD in the first 5 years of implementation in Quebec. Future studies should focus on how to optimize systems to ensure these requests are treated in the most ethical and medically effective way.


Asunto(s)
Suicidio Asistido , Obtención de Tejidos y Órganos , Humanos , Canadá , Muerte , Quebec , Derivación y Consulta , Donantes de Tejidos
4.
JAMA ; 332(13): 1080-1089, 2024 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-39158894

RESUMEN

Importance: Tranexamic acid reduces bleeding and blood transfusion in many types of surgery, but its effect in patients undergoing liver resection for a cancer-related indication remains unclear. Objective: To determine whether tranexamic acid reduces red blood cell transfusion within 7 days of liver resection. Design, Setting, and Participants: Multicenter randomized clinical trial of tranexamic acid vs placebo conducted from December 1, 2014, to November 8, 2022, at 10 hepatopancreaticobiliary sites in Canada and 1 site in the United States, with 90-day follow-up. Participants, clinicians, and data collectors were blinded to allocation. A volunteer sample of 1384 patients undergoing liver resection for a cancer-related indication met eligibility criteria and consented to randomization. Interventions: Tranexamic acid (1-g bolus followed by 1-g infusion over 8 hours; n = 619) or matching placebo (n = 626) beginning at induction of anesthesia. Main Outcomes and Measures: The primary outcome was receipt of red blood cell transfusion within 7 days of surgery. Results: The primary analysis included 1245 participants (mean age, 63.2 years; 39.8% female; 56.1% with a diagnosis of colorectal liver metastases). Perioperative characteristics were similar between groups. Red blood cell transfusion occurred in 16.3% of participants (n = 101) in the tranexamic acid group and 14.5% (n = 91) in the placebo group (odds ratio, 1.15 [95% CI, 0.84-1.56]; P = .38; absolute difference, 2% [95% CI, -2% to 6%]). Measured intraoperative blood loss (tranexamic acid, 817.3 mL; placebo, 836.7 mL; P = .75) and total estimated blood loss over 7 days (tranexamic acid, 1504.0 mL; placebo, 1551.2 mL; P = .38) were similar between groups. Participants receiving tranexamic acid experienced significantly more complications compared with placebo (odds ratio, 1.28 [95% CI, 1.02-1.60]; P = .03), with no significant difference in venous thromboembolism (odds ratio, 1.68 [95% CI, 0.95-3.07]; P = .08). Conclusions and Relevance: Among patients undergoing liver resection for a cancer-related indication, tranexamic acid did not reduce bleeding or blood transfusion but increased perioperative complications. Trial Registration: ClinicalTrials.gov Identifier: NCT02261415.


Asunto(s)
Antifibrinolíticos , Hepatectomía , Neoplasias Hepáticas , Complicaciones Posoperatorias , Ácido Tranexámico , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Antifibrinolíticos/administración & dosificación , Antifibrinolíticos/efectos adversos , Pérdida de Sangre Quirúrgica/prevención & control , Pérdida de Sangre Quirúrgica/estadística & datos numéricos , Método Doble Ciego , Transfusión de Eritrocitos/estadística & datos numéricos , Hepatectomía/efectos adversos , Hepatectomía/estadística & datos numéricos , Neoplasias Hepáticas/cirugía , Ácido Tranexámico/administración & dosificación , Ácido Tranexámico/efectos adversos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Periodo Perioperatorio/estadística & datos numéricos
5.
J Med Genet ; 59(8): 793-800, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-34556502

RESUMEN

BACKGROUND: Traditional medical genetics models are unable to meet the growing demand for germline genetic testing (GT) in patients with exocrine pancreatic cancer (PC). This study investigates the impact of an ambulatory oncology clinic-based GT model. METHODS: From 2012 to 2021, patients with PC were prospectively enrolled and considered for GT. Two chronological cohorts were compared: (1) the preuniversal genetic testing (pre-UGT) cohort, which received GT based on clinical criteria or family history; and (2) the post-UGT cohort, where an 86-gene panel was offered to all patients with PC. RESULTS: Of 847 eligible patients, 735 (86.8%) were enrolled (pre-UGT, n=579; post-UGT, n=156). A higher proportion of the post-UGT cohort received prospective GT (97.4% vs 58.5%, p<0.001). The rate of pathogenic germline alterations (PGA) across both cohorts was 9.9%, with 8.0% of PGAs in PC susceptibility genes. The post-UGT cohort had a higher prevalence of overall PGAs (17.2% vs 6.6%, p<0.001) and PGAs in PC susceptibility genes (11.9% vs 6.3%, p<0.001). The median turnaround time from enrolment to GT report was shorter in the post-UGT cohort (13 days vs 42 days, p<0.001). Probands with a PGA disclosed their GT results to 84% of their first-degree relatives (FDRs). However, only 31% of informed FDRs underwent GT, and the number of new cases per index case was 0.52. CONCLUSION: A point-of-care GT model is feasible and expedites access to GT for patients with PC. Strategies to increase the uptake of cascade testing are needed to maximise the clinical impact of an oncology clinic-based GT model.


Asunto(s)
Mutación de Línea Germinal , Neoplasias Pancreáticas , Humanos , Predisposición Genética a la Enfermedad , Pruebas Genéticas/métodos , Células Germinativas , Mutación de Línea Germinal/genética , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/genética , Estudios Prospectivos
6.
Can J Anaesth ; 70(7): 1155-1166, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37266852

RESUMEN

PURPOSE: The objective of this study was to describe some components of the perioperative practice in liver transplantation as reported by clinicians. METHODS: We conducted a cross-sectional clinical practice survey using an online instrument containing questions on selected themes related to the perioperative care of liver transplant recipients. We sent email invitations to Canadian anesthesiologists, Canadian surgeons, and French anesthesiologists specialized in liver transplantation. We used five-point Likert-type scales (from "never" to "always") and numerical or categorical answers. Results are presented as medians or proportions. RESULTS: We obtained answers from 130 participants (estimated response rate of 71% in Canada and 26% in France). Respondents reported rarely using transesophageal echocardiography routinely but often using it for hemodynamic instability, often using an intraoperative goal-directed hemodynamic management strategy, and never using a phlebotomy (medians from ordinal scales). Fifty-nine percent of respondents reported using a restrictive fluid management strategy to manage hemodynamic instability during the dissection phase. Forty-two percent and 15% of respondents reported using viscoelastic tests to guide intraoperative and postoperative transfusions, respectively. Fifty-four percent of respondents reported not pre-emptively treating preoperative coagulations disturbances, and 91% reported treating them intraoperatively only when bleeding was significant. Most respondents (48-64%) did not have an opinion on the maximal graft ischemic times. Forty-seven percent of respondents reported that a piggyback technique was the preferred vena cava anastomosis approach. CONCLUSION: Different interventions were reported to be used regarding most components of perioperative care in liver transplantation. Our results suggest that significant equipoise exists on the optimal perioperative management of this population.


RéSUMé: OBJECTIF: L'objectif de cette étude était de décrire certaines composantes de la pratique périopératoire en transplantation hépatique telles que rapportées par les cliniciens. MéTHODE: Nous avons mené un sondage transversal sur la pratique clinique à l'aide d'un instrument en ligne comportant des questions sur des thèmes sélectionnés liés aux soins périopératoires des receveurs de greffe du foie. Nous avons envoyé des invitations par courriel à des anesthésiologistes canadiens, des chirurgiens canadiens et des anesthésiologistes français spécialisés en transplantation hépatique. Nous avons utilisé des échelles de type Likert à cinq points (de « jamais ¼ à « toujours ¼) et des réponses numériques ou catégorielles. Les résultats sont présentés sous forme de médianes ou de proportions. RéSULTATS: Nous avons obtenu des réponses de 130 participants (taux de réponse estimé à 71 % au Canada et à 26 % en France). Les répondants ont déclaré utiliser rarement l'échocardiographie transœsophagienne de routine, mais l'utiliser fréquemment pour l'instabilité hémodynamique, souvent en utilisant une stratégie de prise en charge hémodynamique peropératoire axée sur les objectifs, et jamais en utilisant une phlébotomie (médianes des échelles ordinales). Cinquante-neuf pour cent des répondants ont déclaré utiliser une stratégie restrictive de gestion liquidienne pour prendre en charge l'instabilité hémodynamique pendant la phase de dissection. Quarante-deux pour cent et 15 % des répondants ont déclaré utiliser des tests viscoélastiques pour guider les transfusions peropératoires et postopératoires, respectivement. Cinquante-quatre pour cent des répondants ont déclaré ne pas traiter préventivement les troubles préopératoires de la coagulation, et 91 % ont déclaré les traiter en peropératoire uniquement lorsque les saignements étaient importants. La plupart des répondants (48-64 %) n'avaient pas d'opinion sur les temps ischémiques maximaux du greffon. Quarante-sept pour cent des répondants ont déclaré qu'une technique de 'piggyback' (anastomose latéroterminale) était l'approche préférée pour l'anastomose de la veine cave. CONCLUSION: Différentes interventions ont été signalées pour la plupart des composantes des soins périopératoires dans la transplantation hépatique. Nos résultats suggèrent qu'il existe une incertitude significative concernant la prise en charge périopératoire optimale de cette population.


Asunto(s)
Trasplante de Hígado , Humanos , Trasplante de Hígado/métodos , Estudios Transversales , Canadá , Atención Perioperativa/métodos , Hemorragia
7.
Endoscopy ; 54(2): 170-172, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-33592629

RESUMEN

INTRODUCTION: We recently developed a double-balloon device, using widely available existing technology, to facilitate endoscopic ultrasound-guided gastroenterostomy (EUS-GE). Our aim is to assess the feasibility of this modified approach to EUS-guided double-balloon-occluded gastroenterostomy bypass (M-EPASS). METHODS: This was a single-center retrospective study of consecutive patients undergoing M-EPASS from January 2019 to August 2020. The double-balloon device consists of two vascular balloons that optimize the distension of a targeted small-bowel segment for EUS-guided stent insertion. The primary end point was the rate of technical success. RESULTS: 11 patients (45 % women; mean [standard deviation (SD)] age 64.9 [8.6]) with malignant gastric outlet obstruction were included. Technical and clinical success (ability to tolerate an oral diet) were achieved in 91 % (10/11) and 80 % (8/10) of patients, respectively. There was one adverse event (9 %) due to stent migration. Two patients (18 %) required re-intervention for stent obstruction secondary to food impaction. The mean (SD) time to a low residue diet was 3.5 (2.4) days. CONCLUSION: M-EPASS appears to facilitate the technique of EUS-GE, potentially enhancing its safety and clinical adoption. Larger studies are needed to validate this innovative approach to gastric outlet obstruction.


Asunto(s)
Obstrucción de la Salida Gástrica , Ultrasonografía Intervencional , Anciano , Endosonografía/métodos , Femenino , Obstrucción de la Salida Gástrica/etiología , Obstrucción de la Salida Gástrica/cirugía , Gastroenterostomía/métodos , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Estudios Retrospectivos , Stents , Ultrasonografía Intervencional/métodos
8.
Endoscopy ; 54(1): 4-12, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-33506455

RESUMEN

BACKGROUND: Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is the standard in the diagnosis of solid pancreatic lesions, in particular when combined with rapid onsite evaluation of cytopathology (ROSE). More recently, a fork-tip needle for core biopsy (FNB) has been shown to be associated with excellent diagnostic yield. EUS-FNB alone has however not been compared with EUS-FNA + ROSE in a large clinical trial. Our aim was to compare EUS-FNB alone to EUS-FNA + ROSE in solid pancreatic lesions. METHODS: A multicenter, non-inferiority, randomized controlled trial involving seven centers was performed. Solid pancreatic lesions referred for EUS were considered for inclusion. The primary end point was diagnostic accuracy. Secondary end points included sensitivity/specificity, mean number of needle passes, and cost. RESULTS: 235 patients were randomized: 115 EUS-FNB alone and 120 EUS-FNA + ROSE. Overall, 217 patients had malignant histology. The diagnostic accuracy for malignancy of EUS-FNB alone was non-inferior to EUS-FNA + ROSE at 92.2 % (95 %CI 86.6 %-96.9 %) and 93.3 % (95 %CI 88.8 %-97.9 %), respectively (P = 0.72). Diagnostic sensitivity for malignancy was 92.5 % (95 %CI 85.7 %-96.7 %) for EUS-FNB alone vs. 96.5 % (93.0 %-98.6 %) for EUS-FNA + ROSE (P = 0.46), while specificity was 100 % in both. Adequate histological yield was obtained in 87.5 % of the EUS-FNB samples. The mean (SD) number of needle passes and procedure time favored EUS-FNB alone (2.3 [0.6] passes vs. 3.0 [1.1] passes [P < 0.001]; and 19.3 [8.0] vs. 22.7 [10.8] minutes [P = 0.008]). EUS-FNB alone cost on average 45 US dollars more than EUS-FNA + ROSE. CONCLUSION: EUS-FNB alone is non-inferior to EUS-FNA + ROSE and is associated with fewer needle passes, shorter procedure time, and excellent histological yield at comparable cost.


Asunto(s)
Biopsia por Aspiración con Aguja Fina Guiada por Ultrasonido Endoscópico , Neoplasias Pancreáticas , Endosonografía , Humanos , Páncreas/diagnóstico por imagen , Neoplasias Pancreáticas/diagnóstico por imagen
9.
Am J Transplant ; 20(8): 2017-2025, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-31922653

RESUMEN

There is international variability in the determination of death. Death in donation after circulatory death (DCD) can be defined by the permanent cessation of brain circulation. Post-mortem interventions that restore brain perfusion should be prohibited as they invalidate the diagnosis of death. Retrieval teams should develop protocols that ensure the continued absence of brain perfusion during DCD organ recovery. In situ normothermic regional perfusion (NRP) or restarting the heart in the donor's body may interrupt the permanent cessation of brain perfusion because, theoretically, collateral circulations may restore it. We propose refinements to current protocols to monitor and exclude brain reperfusion during in situ NRP. In abdominal NRP, complete occlusion of the descending aorta prevents brain perfusion in most cases. Inserting a cannula in the ascending aorta identifies inadequate occlusion of the descending aorta or any collateral flow and diverts flow away from the brain. In thoracoabdominal NRP opening the aortic arch vessels to atmosphere allows collateral flow to be diverted away from the brain, maintaining the permanence standard for death and respecting the dead donor rule. We propose that these hypotheses are correct when using techniques that simultaneously occlude the descending aorta and open the aortic arch vessels to atmosphere.


Asunto(s)
Preservación de Órganos , Obtención de Tejidos y Órganos , Canadá , Muerte , Humanos , Perfusión , Donantes de Tejidos , Reino Unido
10.
Can J Surg ; 62(6): E16-E18, 2019 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-31782651

RESUMEN

Summary: The Canadian Association of General Surgeons (CAGS) Board of Directors hosted a symposium to develop a Canadian strategy for surgical quality and safety at its mid-term meeting on Feb. 24, 2018. The following 6 principles outline the consensus of this symposium, which included diverse stakeholders and surgeon leaders across Canada: 1) a Canadian quality-improvement strategy for surgery is needed; 2) quality improvement requires continuous, active and intentional effort; 3) outcome measurement alone will not drive improvement; 4) increased focus on standardization and process improvement is necessary; 5) new, large electronic medical record systems pose challenges as well as benefits in Canadian hospitals; and 6) surgeons in remote and rural hospitals must be engaged using tailored approaches.


Asunto(s)
Cirugía General/organización & administración , Mejoramiento de la Calidad/organización & administración , Canadá , Humanos
11.
Ann Surg ; 268(6): 940-942, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-29916874

RESUMEN

QUESTION: What are the clinical outcomes of early versus delayed laparoscopic cholecystectomy (LC) in acute cholecystitis with more than 72 hours of symptoms? DESIGN: A randomized controlled trial. SETTING: Single center at the University Hospital of Lausanne, Switzerland. PATIENTS: Eighty-six patients were enrolled in the study that had symptoms of acute cholecystitis lasting more than 72 hours before admission. INTERVENTION: Patients were randomly assigned to early LC or delayed LC. MAIN OUTCOME: Primary outcome was overall morbidity following initial diagnosis. Secondary outcomes included total length of stay, duration of antibiotic used, cost, and surgical outcome. RESULTS: Overall morbidity was lower in early laparoscopic cholecystectomy (ELC) [6 (14%) vs 17 (39%) patients, P = 0.015]. Median total length of stay (4 vs 7 days, P < 0.001) and duration of antibiotic therapy (2 vs 10 days, P < 0.001) were shorter in the ELC group. Total hospital costs were lower in ELC (9349&OV0556; vs 12,361&OV0556;, P = 0.018). Operative time and postoperative complications were similar (91 vs 88 minutes; P = 0.910) and (15% vs 17%; P = 1.000), respectively. CONCLUSIONS: ELC for acute cholecystitis even beyond 72 hours of symptoms is safe and associated with less overall morbidity, shorter total hospital stay, and duration of antibiotic therapy, as well as reduced cost compared with delayed cholecystectomy.


Asunto(s)
Colecistectomía/métodos , Colecistitis/cirugía , Medicina Basada en la Evidencia , Enfermedad Aguda , Costos de Hospital , Humanos , Tiempo de Internación , Tempo Operativo , Factores de Tiempo
13.
Transpl Int ; 31(6): 658-669, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29493843

RESUMEN

Renal resistance (RR), of allografts undergoing hypothermic machine perfusion (HMP), is considered a measure of organ quality. We conducted a retrospective cohort study of adult deceased donor kidney transplant (KT) recipients whose grafts underwent HMP. Our aim was to evaluate whether RR is predictive of death-censored graft failure (DCGF). Of 274 KT eligible for analysis, 59% were from expanded criteria donor. RR was modeled as a categorical variable, using a previously identified terminal threshold of 0.4, and 0.2 mmHg/ml/min (median in our cohort). Hazard ratios (HR) of DCGF were 3.23 [95% confidence interval (CI): 1.12-9.34, P = 0.03] and 2.67 [95% CI: 1.14-6.31, P = 0.02] in univariable models, and 2.67 [95% CI: 0.91-7.86, P = 0.07] and 2.42 [95% CI: 1.02-5.72, P = 0.04] in multivariable models, when RR threshold was 0.4 and 0.2, respectively. Increasing risk of DCGF was observed when RR over the course of HMP was modeled using mixed linear regression models: HR of 1.31 [95% CI: 1.07-1.59, P < 0.01] and 1.25 [95% CI: 1.00-1.55, P = 0.05], in univariable and multivariable models, respectively. This suggests that RR during HMP is a predictor of long-term KT outcomes. Prospective studies are needed to assess the survival benefit of patients receiving KT with higher RR in comparison with staying wait-listed.


Asunto(s)
Hipotermia Inducida/métodos , Trasplante de Riñón , Perfusión , Anciano , Funcionamiento Retardado del Injerto/etiología , Femenino , Humanos , Terapia de Inmunosupresión , Estimación de Kaplan-Meier , Riñón/fisiopatología , Masculino , Persona de Mediana Edad , Análisis Multivariante , Estudios Prospectivos , Análisis de Regresión , Estudios Retrospectivos , Riesgo , Sensibilidad y Especificidad , Donantes de Tejidos , Resultado del Tratamiento
14.
J Hepatol ; 66(2): 374-381, 2017 02.
Artículo en Inglés | MEDLINE | ID: mdl-27751840

RESUMEN

BACKGROUND & AIMS: Patients listed with exception points for hepatocellular carcinoma (HCC) have been more likely to be transplanted than those listed for chronic liver failure (LF) based on the model for end-stage liver disease (MELD) score. The aim of this study was to determine outcomes in the 5-year experience of a scoring system designed to reflect heterogeneity of tumor load of patients listed for HCC. METHODS: A novel MELD exception point system based on size and number of HCC was implemented in July 2009. This system allows stratification of patients based on risk of dropping out from the waiting list according to Milan criteria. LF patients were listed according to biological MELD sodium score; HCC patients were reassigned points every three months upon repeat imaging. RESULTS: Among 624 patients listed for liver transplant (LT), 505 were eligible. 94 (18.6%) were assigned MELD HCC points. Only 24.7% required changes in allocated points over time. Transplantation rates (HCC 83% vs. LF 73%, p=0.04) and waiting time in days (HCC 258 vs. LF 325; p=0.07) were similar. The method of competing risk analysis revealed that HCC patients were more likely to be transplanted than LF during the 5-year period preceding implementation, whereas transplant rates became equivalent for HCC and non-HCC in 2009-2014. One- and two-year survivals were similar between the two groups. CONCLUSIONS: Our study demonstrates that a novel MELD point system for HCC, taking into account dynamics in tumor size and number, allows for equitable liver allocation without compromising graft and patient survival. LAY SUMMARY: It has historically been difficult to achieve equitable liver allocation for liver cancer and chronic liver failure with the allocation systems currently in place in many countries worldwide. We designed a new system to help improve access to organs for liver failure patients in Québec, Canada. Our 5-year experience demonstrates that this unique system renders access to transplant similar for both liver cancer and liver failure indications.


Asunto(s)
Carcinoma Hepatocelular , Enfermedad Hepática en Estado Terminal , Neoplasias Hepáticas , Trasplante de Hígado/métodos , Obtención de Tejidos y Órganos , Adulto , Canadá/epidemiología , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/cirugía , Enfermedad Hepática en Estado Terminal/mortalidad , Enfermedad Hepática en Estado Terminal/cirugía , Femenino , Humanos , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/cirugía , Masculino , Persona de Mediana Edad , Mejoramiento de la Calidad , Obtención de Tejidos y Órganos/métodos , Obtención de Tejidos y Órganos/organización & administración , Listas de Espera/mortalidad
16.
HPB (Oxford) ; 17(1): 52-65, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24961288

RESUMEN

BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most deadly cancers in the world and its incidence rate has consistently increased over the past 15 years in Canada. Although transarterial embolization therapies are palliative options commonly used for the treatment of HCC, their efficacy is still controversial. The objective of this guideline is to review the efficacy and safety of transarterial embolization therapies for the treatment of HCC and to develop evidence-based recommendations. METHOD: A review of the scientific literature published up to October 2013 was performed. A total of 38 studies were included. RECOMMENDATIONS: Considering the evidence available to date, the CEPO recommends the following: (i) transarterial chemoembolization therapy (TACE) be considered a standard of practice for the palliative treatment of HCC in eligible patients; (ii) drug-eluting beads (DEB)-TACE be considered an alternative and equivalent treatment to conventional TACE in terms of oncological efficacy (overall survival) and incidence of severe toxicities; (iii) the decision to treat with TACE or DEB-TACE be discussed in tumour boards; (iv) bland embolization (TAE) not be considered for the treatment of HCC; (v) radioembolization (TARE) not be considered outside of a clinical trial setting; and (vi) sorafenib combined with TACE not be considered outside of a clinical trial setting.


Asunto(s)
Carcinoma Hepatocelular/terapia , Quimioembolización Terapéutica/normas , Neoplasias Hepáticas/terapia , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/patología , Quimioembolización Terapéutica/efectos adversos , Quimioembolización Terapéutica/mortalidad , Humanos , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/patología , Estadificación de Neoplasias , Cuidados Paliativos , Selección de Paciente , Factores de Riesgo , Análisis de Supervivencia , Tasa de Supervivencia , Factores de Tiempo , Resultado del Tratamiento
18.
HPB (Oxford) ; 16(12): 1062-7, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24946170

RESUMEN

BACKGROUND: A pancreatic fistula (PF) is a major contributor to morbidity and mortality after a pancreaticoduodenectomy (PD). There remains debate as to whether re-establishing pancreaticoenteric continuity by a pancreatico-gastrostomy (PG) can decrease the risk of a PF and complications compared with a pancreatico-jejunostomy (PJ). The outcomes of patients undergoing these reconstructions after a PD were compared. METHOD: Patients undergoing a PD between 1999 and 2011 were selected from a prospective database and having undergone either a PG or PJ reconstruction. A propensity-score adjusted multivariate logistic regression was performed to identify the effect of surgical technique on outcomes of PF, delayed gastric emptying (DGE) and total complications. RESULTS: Twenty-three out of 103 and 20 out of 103 (P = 0.49) patients had PF and 74 out of 103 and 55 out of 103 patients had all-grades DGE in the PG and PJ groups, respectively (P = 0.02). The groups did not differ with regards to Clavien-Dindo grade of complications (P = 0.29) but did differ with regards to the Comprehensive Complication Index (CCI) (38.4 versus 31.4 for PG versus PG, respectively, P = 0.02.) Propensity-score adjusted multivariate analysis showed no effect of PG on PF (P = 0.89), DGE grades B/C (P = 0.9) or CCI (P = 0.41). There remained an effect on all-grades of DGE (P = 0.012.) DISCUSSION: Patients undergoing PG reconstruction had a similar rate of PF as those undergoing a PJ after a PD.


Asunto(s)
Gastrostomía/efectos adversos , Fístula Pancreática/etiología , Pancreaticoduodenectomía/efectos adversos , Pancreatoyeyunostomía/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Distribución de Chi-Cuadrado , Bases de Datos Factuales , Femenino , Gastrostomía/métodos , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Oportunidad Relativa , Fístula Pancreática/diagnóstico , Puntaje de Propensión , Quebec , Medición de Riesgo , Factores de Riesgo , Resultado del Tratamiento , Adulto Joven
19.
Cancers (Basel) ; 16(9)2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38730684

RESUMEN

(1) Background: Despite advances in surgical technique and systemic chemotherapy, some patients with multifocal, bilobar colorectal liver metastases (CRLM) remain unresectable. These patients may benefit from surgical debulking of liver tumors in combination with chemotherapy compared to chemotherapy alone. (2) Methods: A retrospective study including patients evaluated for curative intent resection of CRLM was performed. Patients were divided into three groups: those who underwent liver resection with recurrence within 6 months (subtotal debulked, SD), those who had the first stage only of a two-stage hepatectomy (partially debulked, PD), and those never debulked (ND). Kaplan-Meier survival curves and log-rank test were performed to assess the median survival of each group. (3) Results: 174 patients underwent liver resection, and 34 patients recurred within 6 months. Of the patients planned for two-stage hepatectomy, 35 underwent the first stage only. Thirty-two patients were never resected. Median survival of the SD, PD, and ND groups was 31 months, 31 months, and 19.5 months, respectively (p = 0.012); (4) Conclusions: Patients who underwent a debulking of CRLM demonstrated a survival benefit compared to patients who did not undergo any surgical resection. This study provides support for the evaluation of intentional debulking versus palliative chemotherapy alone in a randomized trial.

20.
Kidney Int Rep ; 9(10): 2915-2926, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39430170

RESUMEN

Introduction: Living donor kidney transplantation (LDKT) is the best treatment option for patients with kidney failure. Efforts to increase LDKT have focused on microlevel interventions and the need for systems thinking has been highlighted. We aimed to identify and compare health system-level attributes and processes that are facilitators and barriers to LDKT. Methods: We conducted a qualitative comparative case study analysis of 3 Canadian provincial health care systems with variable LDKT performance (Quebec: low, Ontario: moderate-high, British Columbia: high). Data collection entailed semistructured interviews (n = 91), document review (n = 97) and focus groups (n = 5 with 40 participants), analyzed using inductive thematic analysis. Results: Our findings showed a strong relationship between the degree of centralized coordination between governing organizations and the capacity to deliver LDKT as follows. (i) macro-level coordination between governing organizations in British Columbia and Ontario increased capacities, whereas Québec was seen as decentralized with little formal coordination; (ii) a higher degree of centralized coordination facilitated more effective resource deployment in the form of human resources and initiatives in British Columbia and Ontario, whereas in Québec resource deployment relied on hospital budgets leading to competition for resources and reduced capacity of initiatives; (iii) informal resource sharing through strong communities of practice and local champions facilitated LDKT in Ontario and British Columbia and was limited in Québec. Conclusion: Our findings suggest that interventions that account for full-system function, particularly macro-level coordination between governing organizations can improve LDKT delivery. Findings may be used to guide structured organizational change toward increasing LDKT and mitigating the global burden of kidney failure.

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