Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 93
Filtrar
1.
Front Oncol ; 14: 1333926, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38751812

RESUMEN

Background: Antitumoral immune response has a crucial role in constraining cancer. However, previous studies on cholangiocarcinoma (CCA), a rare and aggressive cancer, have reported contradictory findings on the prognostic impact of tumor-infiltrating T-lymphocytes. We aimed to clarify the effect of tumor-infiltrating CD3+ and CD8+ lymphocytes and PD-1/PD-L1 expression on CCA prognosis. Methods: CD3+, CD8+, and PD-1+ lymphocyte densities, as well as PD-L1 expression rate were analyzed from stained tissue microarray samples from the tumor center and invasive margin of 47 cholangiocarcinomas. The association of CD3+ and CD8+ based Immune cell score (ICS) and its components with overall survival was evaluated, adjusting for age, sex, TNM stage, radicality of surgery, tumor location, and PD-L1 expression on immune cells. Results: Low ICS was a strong independent prognostic factor for worse overall survival (Hazard ratio 9.27, 95% confidence interval 2.72-31.64, P<0.001). Among the ICS components, high CD8+ lymphocyte infiltration at the tumor center had the most evident impact on patient outcome. PD-1 and PD-L1 expression on immune cells did not have a significant impact on overall survival alone; however, PD-L1 positivity seemed to impair survival for ICSlow subgroup. Conclusion: Identifying patient subgroups that could benefit from immunotherapy with PD-1/PD-L1 pathway blockade may help improve treatment strategies for this aggressive cancer. Our findings highlight the importance of evaluating the immune contexture in cholangiocarcinoma, as ICS serves as a strong independent prognostic and selective factor for patients who might benefit from immunotherapy.

2.
Hepatol Commun ; 8(4)2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38551383

RESUMEN

BACKGROUND: Biliary dysplasia, a precursor of cholangiocarcinoma (CCA), is a common complication of primary sclerosing cholangitis. Patients with high-grade dysplasia (HGD) or early CCA who have received oncological treatment are candidates for liver transplantation. The preoperative diagnosis of CCA or HGD is challenging, and the sensitivity of biliary brush cytology (BC) is limited. METHODS: By using next-generation sequencing (NGS), we retrospectively analyzed archived tissue samples (n=62) obtained from explanted liver tissue and CCA samples to identify oncogenic mutations that occur during primary sclerosing cholangitis carcinogenesis. BC samples were prospectively collected from patients with primary sclerosing cholangitis (n=97) referred for endoscopic retrograde cholangiography to measure the diagnostic utility of NGS combined with BC compared with traditional cytology alone. RESULTS: Mutations in KRAS, GNAS, FLT3, RNF43, TP53, ATRX, and SMAD4 were detected in archived CCA or HGD samples. KRAS, GNAS, TP53, CDKN2A, FBXW7, BRAF, and ATM mutations were detected in prospectively collected brush samples from patients with histologically verified CCA or HGD. One patient with low-grade dysplasia in the explanted liver had KRAS and GNAS mutations in brush sample. No mutations were observed in brush samples or archived tissues in liver transplantation cases without biliary neoplasia. While KRAS mutations are common in biliary neoplasms, they were also observed in patients without biliary neoplasia during surveillance. CONCLUSIONS: In summary, NGS of BC samples increased the sensitivity of detecting biliary neoplasia compared with traditional cytology. Performing NGS on BC samples may help diagnose HGD or early CCA, benefiting the timing of liver transplantation.


Asunto(s)
Neoplasias de los Conductos Biliares , Colangiocarcinoma , Colangitis Esclerosante , Humanos , Estudios Retrospectivos , Estudios Prospectivos , Colangitis Esclerosante/complicaciones , Colangitis Esclerosante/diagnóstico , Colangitis Esclerosante/genética , Proteínas Proto-Oncogénicas p21(ras)/genética , Neoplasias de los Conductos Biliares/diagnóstico , Neoplasias de los Conductos Biliares/genética , Colangiopancreatografia Retrógrada Endoscópica/efectos adversos , Colangiocarcinoma/diagnóstico , Colangiocarcinoma/genética , Conductos Biliares Intrahepáticos , Secuenciación de Nucleótidos de Alto Rendimiento
3.
Scand J Gastroenterol ; 58(9): 1038-1043, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37070861

RESUMEN

CONCLUSIONS: Nearly half of operated patients developed long-term postoperative complications. A novel association between CMs and IBD was observed. Although no hepatobiliary malignancies regardless of treatment modality were encountered, the number of patients and length of follow-up remained limited.


Asunto(s)
Quiste del Colédoco , Humanos , Adulto , Quiste del Colédoco/cirugía , Quiste del Colédoco/complicaciones , Finlandia/epidemiología , Conducto Colédoco , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología
4.
Clin Transplant ; 37(8): e14992, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37076928

RESUMEN

INTRODUCTION: Simultaneous pancreas-kidney transplantation (SPK) is an option for patients with type 1 diabetes (T1D) and kidney failure but can be associated with a high complication rate. Here we describe our 10-year experience since the launch of the SPK program. METHODS: This retrospective study included consecutive patients with T1D receiving SPK from March 14, 2010 to March 14, 2020 at Helsinki University Hospital. Portocaval anastomosis (i.e., systemic venous drainage) and enteric exocrine drainage were used. A specific team was trained for both pancreas retrieval and transplantation, postoperative care was standardized to include somatostatin analogues, antimicrobial treatment, and preoperatively initiated chemothrombopropylaxis. During program maturation donor criteria were expanded and logistical processes improved to minimize cold ischemia time. Clinical data were collected from a nationwide transplantation registry and patient records. RESULTS: A total of 166 SPKs were performed (median 2 per year in the first 3 years, 17.5 per year for the following 4 years, and 23 per year for the past 3 years). Seven patients (4.1%) died with a functioning graft with a median 43 months follow-up. One-year pancreas graft survival was 97.0%, 3-year pancreas graft survival was 96.1% and 5-year was 96.1%. Mean HbA1c was 36 mmol/mol (SD 5.57) and creatinine was 107 µmol/L (SD 34.69) at 1-year after transplantation. All kidney grafts were functioning at the end of follow-up. Complications required re-laparotomy in 39 (23%) patients, mostly due to a pancreas graft related problem (N = 28). No pancreas or kidney graft failure from thrombosis occurred. CONCLUSION: A planned, step-wise development of an SPK program offers a safe and effective treatment for patients with T1D and kidney failure.


Asunto(s)
Diabetes Mellitus Tipo 1 , Trasplante de Riñón , Trasplante de Páncreas , Humanos , Trasplante de Riñón/efectos adversos , Diabetes Mellitus Tipo 1/complicaciones , Finlandia , Estudios Retrospectivos , Resultado del Tratamiento , Trasplante de Páncreas/efectos adversos , Supervivencia de Injerto
5.
Scand J Surg ; 112(2): 77-85, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36755514

RESUMEN

BACKGROUND AND OBJECTIVE: Acute mesenteric ischemia (AMI) has a high mortality rate due to the development of bowel necrosis. Patients are often ruled outside active care if a large proportion of small bowel is necrotic. With the development of treatment for short bowel syndrome (SBS) and intestinal transplantation methods, long-term survival is possible even after extensive small bowel resections. This study aims to assess the incidence of SBS and potentially suitable candidates for intestinal transplantation among patients treated for AMI. METHODS: This population-based retrospective study comprised patients aged less than 70 years and diagnosed with AMI between January 2006 and October 2020 in Helsinki and Uusimaa health care district, Finland. RESULTS: Altogether, AMI was diagnosed in 711 patients, of whom 133 (19%) were aged below 70. An intervention was performed in 110 (83%) patients. Of these 133 patients, 16 (12%) were ruled outside active treatment due to extensive small bowel necrosis at exploratory laparotomy, of whom 6 (5%) were potentially suitable for intestinal transplantation. Two patients were considered as potential candidates for intestinal transplantation at bowel resection but died of AMI. Nine (7%) patients needed parenteral nutrition after resection, and two of them (2%) developed SBS. Only one patient needed long-term parenteral nutrition after hospital discharge. This patient remained dependent on parenteral nutrition but died before evaluation of intestinal transplantation could be carried out while the other patient was able to return to enteral nutrition. CONCLUSIONS: A small number of patients with AMI below 70 years of age are potentially eligible for intestinal transplantation.


Asunto(s)
Isquemia Mesentérica , Síndrome del Intestino Corto , Humanos , Isquemia Mesentérica/cirugía , Isquemia Mesentérica/complicaciones , Estudios Retrospectivos , Intestino Delgado/cirugía , Síndrome del Intestino Corto/cirugía , Síndrome del Intestino Corto/complicaciones , Necrosis/etiología
6.
Scand J Gastroenterol ; 58(4): 412-416, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36308000

RESUMEN

OBJECTIVE: Liver-transplantation activity is limited by the shortage of grafts. Donor-liver macrovesicular steatosis predisposes to ischemia-reperfusion injury and is associated with reduced graft survival. The increasing prevalence of fatty-liver disease underlines the importance of identifying macrovesicular steatosis in potential donor livers. We analyzed liver grafts discarded for transplantation, and particularly the role of gamma-glutamyltransferase (GGT) in predicting graft steatosis. METHODS: One-hundred sixty rejected cadaveric-donor liver grafts were studied. Donor selection was based on clinical data, and macroscopic graft inspection. Discarded grafts were biopsied at procurement of non-liver organs. RESULTS: The most common reasons for discarding the graft were abnormal liver tests, ultrasound-verified steatosis and history of harmful alcohol use. GGT correlated moderately with macrovesicular steatosis (r = 0.52, p < 0.001), but poorly with microvesicular steatosis (r = 0.36, p < 0.001). Increased correlation between GGT and macrovesicular steatosis was observed among alcohol abusers (r = 0.67, p < 0.001). Area under the curve (AUC) of GGT for predicting >30% macrovesicular steatosis was 0.79 (95% CI 0.71-0.88), and for >60% steatosis, 0.79 (95% CI 0.68-0.90). The optimal GGT-cut off for detecting >30% and >60% macrovesicular steatosis were, respectively, 66 U/L (sensitivity 76% and specificity 68%) and 142 U/L (sensitivity 66% and specificity 83%). Among alcohol users, a GGT value >90 U/L showed 100% sensitivity for >60% macrovesicular steatosis. AUC for GGT in predicting fibrosis Stages 2-4 was 0.82 (95% CI 0.71-0.92, p < 0.001, optimal cut off 68, sensitivity 92%, specificity 61%). CONCLUSIONS: Abnormal liver values, steatosis and harmful alcohol use were the main reasons for discarding liver-graft offers in Finland. GGT proved useful in predicting moderate and severe liver graft macrovesicular steatosis.


Asunto(s)
Trasplante de Hígado , Enfermedad del Hígado Graso no Alcohólico , Humanos , Aloinjertos , Finlandia/epidemiología , gamma-Glutamiltransferasa , Donadores Vivos
7.
Transpl Int ; 35: 10364, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36118016

RESUMEN

Brain death-induced cytokine storm is thought to harm transplantable organs. However, longer procurement times have been associated with non-inferior or better outcomes in kidney, heart, and lung transplants, while optimal procurement time for liver allografts is unknown. Our aim was to analyze the association of time interval from brain death to organ procurement with liver allograft outcomes in two nationwide cohorts. The association of procurement interval with graft survival and short-term complications was analysed in multivariable models. Altogether 643 and 58,017 orthotopic liver transplantations from brain-dead donors were included from Finland between June 2004 and December 2017 and the US between January 2008 and August 2018, respectively. Median time from brain death to organ procurement was 10.5 h in Finland and 34.6 h in the US. Longer interval associated with better graft survival (non-linearly, p = 0.016) and less acute rejections (OR 0.935 95% CI 0.894-0.978) in the US cohort, and better early allograft function (p = 0.005; Beta -0.048 95% CI -0.085 -(-0.011)) in the Finnish cohort, in multivariable models adjusted with Donor Risk Index, recipient age, Model for End-Stage Liver Disease and indication for transplantation. Progressive liver injury after brain death is unlikely. Rushing to recover seems unnecessary; rest and repair might prove beneficial.


Asunto(s)
Enfermedad Hepática en Estado Terminal , Trasplante de Hígado , Obtención de Tejidos y Órganos , Encéfalo , Muerte Encefálica , Humanos , Índice de Severidad de la Enfermedad
8.
Transpl Int ; 34(11): 2112-2121, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34553794

RESUMEN

The access of non-resident patients to the deceased donor waiting list (DDWL) poses different challenges. The European Committee on Organ Transplantation of the Council of Europe (CD-P-TO) has studied this phenomenon in the European setting. A questionnaire was circulated among the Council of Europe member states to inquire about the criteria applied for non-residents to access their DDWL. Information was compiled from 28 countries. Less than 1% of recipients of deceased donor organs were non-residents. Two countries never allow non-residents to access the DDWL, four allow access without restrictions and 22 only under specific conditions. Of those, most give access to non-resident patients already in their jurisdictions who are in a situation of vulnerability (urgent life-threatening conditions). In addition, patients may be given access: (i) after assessment by a specific committee (four countries); (ii) within the framework of official cooperation agreements (15 countries); and (iii) after patients have officially lived in the country for a minimum length of time (eight countries). The ethical and legal implications of these policies are discussed. Countries should collect accurate information about residency status of waitlisted patients. Transparent criteria for the access of non-residents to DDWL should be clearly defined at national level.


Asunto(s)
Trasplante de Riñón , Trasplante de Órganos , Obtención de Tejidos y Órganos , Europa (Continente) , Humanos , Donantes de Tejidos , Listas de Espera
9.
Scand J Gastroenterol ; 56(8): 929-939, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34224306

RESUMEN

INTRODUCTION: Gallbladder cancer (GBC) is a rare malignancy in Western population with poor prognosis. This study aimed to investigate the trends in GBC incidence, treatment pattern, and survival in Finland. METHODS: Patients diagnosed with primary GBC in a geographically defined area (Southern Finland Regional Cancer Center) during 2006-2017 were identified. RESULTS: Final cohort included 270 patients with GBC. The incidence was 1.32/100,000 persons, and it decreased 6.8 cases per million personyears during the study period. One hundred fifty-one (56%) patients were diagnosed at Stage IV. Fifty-one patients (19%) underwent curative-intent resection with 96% R0-resection rate. The median overall survival was 7.1 months and 5-year overall survival 11.6% for all patients, and 67.7 months and 56.8% after curative-intent resection, respectively. No improvement was noted over time in overall survival in patients with GBC, or in subgroups of different stages of GBC. CONCLUSIONS: The incidence of GBC is slightly decreasing in Southern Finland, but survival has not improved over time.


Asunto(s)
Carcinoma in Situ , Neoplasias de la Vesícula Biliar , Finlandia/epidemiología , Neoplasias de la Vesícula Biliar/epidemiología , Neoplasias de la Vesícula Biliar/patología , Neoplasias de la Vesícula Biliar/terapia , Humanos , Incidencia , Estadificación de Neoplasias , Estudios Retrospectivos , Tasa de Supervivencia
10.
Vaccine ; 39(17): 2351-2359, 2021 04 22.
Artículo en Inglés | MEDLINE | ID: mdl-33812743

RESUMEN

BACKGROUND: Solid organ transplant (SOT) patients are at significant risk for invasive pneumococcal disease. The optimal pneumococcal vaccination strategy for SOT patients is not known. METHODS: The potential adult liver transplant recipients were randomised into two arms: to receive a 23-valent pneumococcal polysaccharide vaccine (PPV23) before the transplantation or to receive a 13-valent pneumococcal conjugate vaccine (PCV13) before the transplantation and a second dose of PCV13 six months after the transplantation. Serotype-specific antibody concentrations and opsonophagocytic activity (OPA) were measured before and after the first vaccination (visits V1,V2) and six and seven months after the transplantation, e.g. before and after the second PCV13 (visits V3,V4). RESULTS: Out of 47 patients, 19 (PCV13 arm) and 17 (PPV23 arm) received a liver transplant and all these patients completed the study (36/47, 76,6%). Each vaccine schedule elicited a good immune response. At V2, the geometric mean concentrations (GMCs) of antibodies for serotypes 6A, 7F and 23F, and the geometric mean titers (GMT́s) of OPA for serotypes 4, 6A, 6B and 23F were significantly higher for PCV13, but the proportions of patients reaching OPA cut-off ≥ 8 or ELISA cut-off ≥ 1.0 µg/ml did not differ between the arms. At V3 the antibody concentrations and the OPA had declined to baseline in both arms. The second PCV13 vaccination elicited an immune response. There was no difference in adverse events. No vaccine-related allograft rejection was detected. CONCLUSIONS: The immunogenicity of PPV23 and PCV13 was comparable in this patient material, but the seroresponses waned after transplantation. The second dose of PCV13 restored the immune responses and was well tolerated.


Asunto(s)
Trasplante de Hígado , Infecciones Neumocócicas , Adulto , Anticuerpos Antibacterianos , Humanos , Infecciones Neumocócicas/prevención & control , Vacunas Neumococicas/efectos adversos , Polisacáridos , Vacunación , Vacunas Conjugadas
12.
Clin J Am Soc Nephrol ; 16(3): 427-436, 2021 03 08.
Artículo en Inglés | MEDLINE | ID: mdl-33637606

RESUMEN

BACKGROUND AND OBJECTIVES: Transplant centers in Europe aim to minimize the time from brain death to organ procurement (procurement delay), but evidence to justify this is scarce. In the United States, procurement times are significantly longer. Our objective was to analyze how procurement delay associates with kidney allograft outcomes. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Kidney transplantations from brain-dead donors were retrospectively analyzed from the Finnish Kidney Transplant Registry and the Scientific Registry of Transplant Recipients in the United States. Multivariable models were adjusted with donor and recipient characteristics, and the relationship between procurement delay and outcomes was modeled with cubic spline functions. RESULTS: In total, 2388 and 101,474 kidney transplantations in Finland and the United States were included, respectively. The median procurement delay was 9.8 hours (interquartile range, 7.8-12.4) in Finland and 34.8 hours (interquartile range, 26.3-46.3) in the United States. A nonlinear association was observed between procurement delay and the risk of delayed graft function, with highest risk seen in short and very long procurement delays. In multivariable models, the lowest risk of delayed graft function was associated with procurement delay between 20 and 50 hours. In multivariable models, longer procurement delay was linearly associated with lower risk of graft loss (hazard ratio, 0.90/1 h longer; 95% confidence interval, 0.88 to 0.92; P<0.001). Acute rejection rates, for which data were only available from Finland, were not associated with procurement delay. CONCLUSIONS: Longer procurement delay was associated with noninferior or even better kidney allograft outcomes.


Asunto(s)
Trasplante de Riñón , Tiempo de Tratamiento/estadística & datos numéricos , Obtención de Tejidos y Órganos/estadística & datos numéricos , Adulto , Femenino , Finlandia , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Tiempo , Resultado del Tratamiento , Estados Unidos
13.
J Pediatr Gastroenterol Nutr ; 72(6): 820-825, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-33470752

RESUMEN

OBJECTIVE: The aim of the study was to assess long-term morbidity in children operated for choledochal malformation (CM) by relating clinical complications to liver histopathology, follow-up imaging, liver stiffness, and biochemistry. METHODS: A single-center retrospective follow-up study including all CM patients (n = 55, 71% girls) treated during 1976 to 2018 was performed. Mann-Whitney U test and Spearman rank correlation were used for statistical analyses. RESULTS: During median follow-up of 5.8 (interquartile range, 2.5-12) years, 1 patient was lost to follow-up whereas all survived. Intraoperative liver biopsies showed fibrosis in 32%, and patients with Metavir stage ≥2 were younger at surgery (0.36 [0.11-1.9] vs 3.8 [0.72-10.5] years, P = 0.024) than those without fibrosis. Overall, 21% had long-term complications including cholangitis in 9 (>2 episodes in 5) patients, anastomotic stricture in 2 referred patients and adhesive volvulus or hepatocellular carcinoma in 1 each. Anastomotic strictures were successfully managed nonoperatively and hepatocellular carcinoma with thermoablation. In postoperative magnetic resonance cholangiography (MRCP) performed 6.4 (3.6-16) years after hepaticojejunostomy, diameters of both main intrahepatic ducts had decreased significantly to 3.0 (2.5-3.5) mm (P = 0.0001) but a distal cyst stump was remaining in 30% with a length of 6.0 (4.0-20) mm that associated with operation age (r = 0.71, P = 0.015) and fusiform CM type. Follow-up ultrasound revealed mild dilation of intrahepatic bile ducts in 6.3% and mildly to moderately elevated liver biochemistry in 23%, and liver stiffness (>7 kPa) in 22%. CONCLUSIONS: Whilst cholangitis was the most common postoperative problem, individual patients experienced other more significant complications and one quarter of patients showed evidence of underlying liver dysfunction.


Asunto(s)
Quiste del Colédoco , Conductos Biliares Intrahepáticos , Niño , Quiste del Colédoco/diagnóstico por imagen , Quiste del Colédoco/epidemiología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Morbilidad , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos
14.
Surg Endosc ; 35(6): 2879-2888, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-32572630

RESUMEN

INTRODUCTION: Recently new standards for reporting outcomes of bile duct injury (BDI) have been proposed. It is unclear how these treatment outcomes are reflected in quality of life (QOL). The aim of this study was to report outcomes and QOL after repair of major BDI and compare repairs by hepatobiliary surgeon to repairs by non-hepatobiliary surgeons. METHODS: This was a retrospective study of patients treated for major (Strasberg E-type) BDI after cholecystectomy at a tertiary hepatobiliary center. Outcomes were assessed using Cho-Strasberg proposed standards. QOL was assessed using Short Form Health Survey (SF-36) and the gastrointestinal QOL-index (GIQLI). Patients undergoing uneventful cholecystectomy matched by age, urgency, and duration of follow-up were used as controls. RESULTS: Fifty-two patients with major BDI treated between 2000 and 2016 were included (42% male, median age 53 years). Thirty-seven (71%) patients attained primary patency (29 (83%) if primarily operated by a hepatobiliary surgeon). Actuarial primary patency rate (grade A result) at 1, 3, and 5 years was 58%, 56%, and 53% in the whole cohort, and 83%, 80%, and 80% in patients primary treated by a hepatobiliary surgeon, respectively. At 3-year follow-up 6 (11.5%) patients obtained grade B, 10 (19.2%) grade C, and 7 (13.5%) grade D result. QOL was similar in patients with BDI and controls (median SF-36 physical component 51.7 and 53.6, p = 1.0, mental component 53.3 and 53.4, p = 1.0, GIQLI 109.0 and 123.0, p = 0.174, respectively) at median 90 (IQR 70-116) months from cholecystectomy. QOL was similar regardless of outcome grade. CONCLUSION: First attempt to repair a severe BDI should be undertaken by a hepatobiliary surgeon. However, long-term QOL is not affected even by severe BDI, and QOL is not associated with the grade of the outcome.


Asunto(s)
Enfermedades de los Conductos Biliares , Calidad de Vida , Conductos Biliares/cirugía , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
15.
HPB (Oxford) ; 23(7): 1016-1024, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33223433

RESUMEN

BACKGROUND: Thromboprophylaxis protocols in liver surgery vary greatly worldwide. Due to limited research, there is no consensus whether the administration of thromboprophylaxis should be initiated pre- or postoperatively. METHODS: Patients undergoing liver resection in Helsinki University Hospital between 2014 and 2017 were reviewed retrospectively. Initiation of thromboprophylaxis was changed in the institution in the beginning of 2016 from postoperative to preoperative. Patients were classified into two groups for analyses: thromboprophylaxis initiated preoperatively (Preop-group) or postoperatively (Postop-group). The incidences of VTE and haemorrhage within 30 days of surgery were compared between these groups. Patients with permanent anticoagulation were excluded. RESULTS: A total of 512 patients were included to the study (Preop, n = 253, Postop, n = 259). The incidence of VTE was significantly lower in the Preop-group compared to the Postop-group (3 (1.2%) vs. 25 (9.7%), P = <.0001), mainly due to a lower incidence of pulmonary embolisms in the Preop-group (3 (1.2%) vs. 24 (9.3%), P < .0001). The rates of posthepatectomy haemorrhage within 30 days of surgery were similar (Preop 38 (15.0%) vs. Postop 36 (13.9%), p = .719). CONCLUSION: Initiating thromboprophylaxis preoperatively may reduce the incidence of postoperative VTE without affecting the incidence of posthepatectomy haemorrhage in patients undergoing liver resection.


Asunto(s)
Embolia Pulmonar , Tromboembolia Venosa , Anticoagulantes/efectos adversos , Humanos , Hígado , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/prevención & control , Embolia Pulmonar/epidemiología , Embolia Pulmonar/etiología , Embolia Pulmonar/prevención & control , Estudios Retrospectivos , Tromboembolia Venosa/diagnóstico , Tromboembolia Venosa/epidemiología , Tromboembolia Venosa/etiología
16.
BMJ Open ; 10(11): e038340, 2020 11 16.
Artículo en Inglés | MEDLINE | ID: mdl-33199419

RESUMEN

INTRODUCTION: Remote ischaemic preconditioning (RIPC) using a non-invasive pneumatic tourniquet is a potential method for reducing ischaemia-reperfusion injury. RIPC has been extensively studied in animal models and cardiac surgery, but scarcely in solid organ transplantation. RIPC could be an inexpensive and simple method to improve function of transplanted organs. Accordingly, we aim to study whether RIPC performed in brain-dead organ donors improves function and longevity of transplanted organs. METHODS AND ANALYSES: RIPTRANS is a multicentre, sham-controlled, parallel group, randomised superiority trial comparing RIPC intervention versus sham-intervention in brain-dead organ donors scheduled to donate at least one kidney. Recipients of the organs (kidney, liver, pancreas, heart, lungs) from a randomised donor will be included provided that they give written informed consent. The RIPC intervention is performed by inflating a thigh tourniquet to 300 mm Hg 4 times for 5 min. The intervention is done two times: first right after the declaration of brain death and second immediately before transferring the donor to the operating theatre. The sham group receives the tourniquet, but it is not inflated. The primary endpoint is delayed graft function (DGF) in kidney allografts. Secondary endpoints include short-term functional outcomes of transplanted organs, rejections and graft survival in various time points up to 20 years. We aim to show that RIPC reduces the incidence of DGF from 25% to 15%. According to this, the sample size is set to 500 kidney transplant recipients. ETHICS AND DISSEMINATION: This study has been approved by Helsinki University Hospital Ethics Committee and Helsinki University Hospital's Institutional Review Board. The study protocol was be presented at the European Society of Organ Transplantation congress in Copenhagen 14-15 September 2019. The study results will be submitted to an international peer-reviewed scientific journal for publication. TRIAL REGISTRATION NUMBER: NCT03855722.


Asunto(s)
Precondicionamiento Isquémico , Trasplante de Órganos , Daño por Reperfusión , Método Doble Ciego , Humanos , Estudios Multicéntricos como Asunto , Ensayos Clínicos Controlados Aleatorios como Asunto , Daño por Reperfusión/prevención & control , Resultado del Tratamiento
17.
Scand J Gastroenterol ; 55(11): 1324-1332, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32976739

RESUMEN

OBJECTIVES: In acute portal vein thrombosis (PVT), a six-month anticoagulation treatment achieves complete recanalization in only 35%-45% of patients, but the predictors of poor treatment responses are unclear. We examined treatment outcomes in PVT and aimed to identify predictors of incomplete recanalization and portal hypertensive complications. MATERIALS AND METHODS: This retrospective study comprised patients diagnosed with PVT between 2006 and 2015. Key exclusion criteria were liver cirrhosis, malignancy, and age <18. RESULTS: The final cohort comprised 145 patients, of whom 132 (92%) were primarily treated with anticoagulation. The 5-year cumulative incidence of complete recanalization was 42% and of portal hypertensive complications, 31%. Independent predictors of insufficient recanalization were sub-acute or chronic thrombosis (hazard ratio (HR) 3.1, 95% CI 1.6-5.8), while acute pancreatitis was a protective factor (HR 0.3, 95% CI 0.2 - 0.7). Independent predictors of incident portal hypertensive complications were as cites at baseline (HR 3.3, 95% CI 1.7-6.7), sub-acute or chronic thrombosis (HR 2.9, 95% CI 1.6-5.3), extension of thrombosis to the splenic or mesenteric vein (HR 2.6, 95% CI 1.2-5.7), myeloproliferative disease (HR 3.0, 95% CI 1.4-6.5), and anemia (HR 2.1, 95% 1.1-3.9), while acute pancreatitis was a protective factor (HR 0.1, 95% CI 0.03-0.5). CONCLUSIONS: Etiology and age of thrombosis are associated with treatment responses in PVT. The presence of ascites at baseline, etiology, and extent of thrombosis, a non-acute thrombosis and anemia, are associated with the risk of portal hypertensive complications. Etiology and extent of thrombosis should be taken into account when determining the treatment (method) for PVT.


Asunto(s)
Pancreatitis , Trombosis , Enfermedad Aguda , Anticoagulantes/uso terapéutico , Humanos , Cirrosis Hepática/complicaciones , Cirrosis Hepática/patología , Pancreatitis/patología , Vena Porta/patología , Estudios Retrospectivos , Resultado del Tratamiento
18.
Ann Surg ; 272(5): 855-862, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32889867

RESUMEN

OBJECTIVE: The aim of this study was to evaluate the survival benefit of sirolimus in patients undergoing liver transplantation (LT) for hepatocellular carcinoma (HCC) (exploratory analysis of the SiLVER-trial). SUMMARY AND BACKGROUND DATA: Patients receiving LT) for HCC are at a high risk for tumor recurrence. Calcineurin inhibitors have shown evidence to promote cancer growth, whereas mammalian target of rapamycin (mTOR) inhibitors like sirolimus have anticancer effects. In the SiLVER-trial (Clinicaltrials.gov: NCT00355862), the effect of sirolimus on the recurrence of HCC after LT was investigated in a prospective randomized trial. Although the primary endpoint of improved disease-free survival (DFS) with sirolimus was not met, outcomes were improved for patients in the sirolimus-treatment arm in the first 3 to 5 years. To learn more about the key variables, a multivariate analysis was performed on the SiLVER-trial data. PATIENTS AND METHODS: Data from 508 patients of the intention-to-treat analysis were included in exploratory univariate and multivariate models for overall survival (OS), DFS and a competing risk analysis for HCC recurrence. RESULTS: Sirolimus use for ≥3 months after LT for HCC independently reduced the hazard for death in the multivariate analysis [hazard ratio (HR): 0.7 (95% confidence interval, CI: 0.52-0.96, P = 0.02). Most strikingly, patients with an alpha-fetoprotein (AFP) ≥10 ng/mL and having used sirolimus for ≥3 months, benefited most with regard to OS, DFS, and HCC-recurrence (HR: 0.49-0.59, P = 0.0079-0.0245). CONCLUSIONS: mTOR-inhibitor treatment with sirolimus for ≥3 months improves outcomes in LT for HCC, especially in patients with AFP-evidence of higher tumor activity, advocating particularly for mTOR inhibitor use in this subgroup of patients. CLINICAL TRIAL REGISTRATION: EudraCT: 2005-005362-36 CLINICALTRIALS.GOV:: NCT00355862.


Asunto(s)
Carcinoma Hepatocelular/cirugía , Inmunosupresores/uso terapéutico , Neoplasias Hepáticas/cirugía , Trasplante de Hígado , Recurrencia Local de Neoplasia/prevención & control , Sirolimus/uso terapéutico , Anciano , Carcinoma Hepatocelular/mortalidad , Femenino , Humanos , Análisis de Intención de Tratar , Neoplasias Hepáticas/mortalidad , Trasplante de Hígado/mortalidad , Masculino , Persona de Mediana Edad , Tasa de Supervivencia
20.
Alcohol Alcohol ; 55(6): 660-666, 2020 Oct 20.
Artículo en Inglés | MEDLINE | ID: mdl-32808029

RESUMEN

AIMS: Alcohol-related hangover symptoms: nausea, headache, stress and anxiety cause globally considerable amount of health problems and economic losses. Many of these harmful effects are produced by alcohol and its metabolite, acetaldehyde, which also is a common ingredient in alcohol beverages. The aim of the present study is to investigate the effect of the amino acid L-cysteine on the alcohol/acetaldehyde related aftereffects. METHODS: Voluntary healthy participants were recruited through advertisements. Volunteers had to have experience of hangover and/or headache. The hangover study was randomized, double-blind and placebo-controlled. Nineteen males randomly swallowed placebo and L-cysteine tablets. The alcohol dose was 1.5 g/kg, which was consumed during 3 h. RESULTS: The primary results based on correlational analysis showed that L-cysteine prevents or alleviates hangover, nausea, headache, stress and anxiety. For hangover, nausea and headache the results were apparent with the L-cysteine dose of 1200 mg and for stress and anxiety already with the dose of 600 mg. CONCLUSIONS: L-cysteine would reduce the need of drinking the next day with no or less hangover symptoms: nausea, headache, stress and anxiety. Altogether, these effects of L-cysteine are unique and seem to have a future in preventing or alleviating these harmful symptoms as well as reducing the risk of alcohol addiction.


Asunto(s)
Intoxicación Alcohólica/tratamiento farmacológico , Ansiedad/tratamiento farmacológico , Cisteína/administración & dosificación , Cefalea/tratamiento farmacológico , Náusea/tratamiento farmacológico , Vitaminas/administración & dosificación , Adulto , Intoxicación Alcohólica/complicaciones , Intoxicación Alcohólica/diagnóstico , Ansiedad/diagnóstico , Ansiedad/etiología , Suplementos Dietéticos , Método Doble Ciego , Cefalea/diagnóstico , Cefalea/etiología , Humanos , Masculino , Persona de Mediana Edad , Náusea/diagnóstico , Náusea/etiología , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...