Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 22
Filtrar
Más filtros

Bases de datos
Tipo del documento
Intervalo de año de publicación
1.
Colorectal Dis ; 25(11): 2131-2138, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37753947

RESUMEN

AIM: Anal cancer incidence and mortality rates are rising in the United Kingdom (UK). Surgery is an important treatment modality for persistent or recurrent disease. There is a paucity of data on outcomes for patients undergoing pelvic exenteration for anal squamous cell carcinoma (SCC) for persistent or recurrent disease. The aim of this study was to investigate the outcomes for patients who were treated with pelvic exenteration for anal SCC from two high-volume, high-complexity pelvic exenteration units in the UK. METHOD: A retrospective review of prospectively maintained databases from 2011 to 2020 was undertaken. Primary endpoints included R0 resection rates, overall and disease-free survival at 2 and 5 years. RESULTS: From 2011 to 2020, 35 patients with anal SCC were selected for exenteration. An R0 resection was achieved in 26 patients (77%). Of the remaining patients, seven patients had an R1 resection and one had a R2 resection. One further patient was excluded from additional analysis as the disease was inoperable at the time of laparotomy. With a median follow-up of 19.5 months (interquartile range 7.9-53.5 months), overall survival was 50% (17/34). Patients with an R1/2 resection had a significantly poorer overall survival [0.27 (0.09-0.76), p = 0.021] than those patients in whom R0 resection was achieved. Disease-free survival was 38.2% (13/34) and an R1/R2 resection was associated with a significantly reduced disease-free survival [0.12 (0.04-0.36), p < 0.001]. CONCLUSION: Complete R0 resection for recurrent or persistent anal SCC is possible in the majority of patients and improves overall and disease-free survival compared with R1/R2 resection.


Asunto(s)
Neoplasias del Ano , Carcinoma de Células Escamosas , Exenteración Pélvica , Neoplasias del Recto , Humanos , Exenteración Pélvica/efectos adversos , Recurrencia Local de Neoplasia/patología , Neoplasias del Ano/patología , Carcinoma de Células Escamosas/cirugía , Estudios Retrospectivos , Neoplasias del Recto/cirugía , Resultado del Tratamiento
2.
J Arthroplasty ; 37(7S): S524-S529, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35241321

RESUMEN

BACKGROUND: The aim of this study is to assess the independent effect of age on the risk of postsurgical complications and death in patients undergoing total hip arthroplasty (THA). METHODS: The National Surgical Quality Improvement Program was used to identify all patients aged 65 years and older who underwent primary THA from 2011 to 2017. Study outcomes were minor complications, major life-threatening complications, and 30-day mortality. Predictors of outcomes were identified using bivariate analyses and age was added into the final logistic regression models with stepwise selection. RESULTS: A total of 74,361 patients were included in the analysis. Mean (standard deviation) age was 735 years (6.46), median 72.0 years; 1,119 (1.50%) patients were ≥90 years. Females comprised 60.6% of the patient sample. The incidence of major life-threatening complications, minor complications, and death was 939/74,361 (1.3%), 2,098 (2.8%) and 154 (0.2%) respectively. When added to the final models, age was significantly associated with an increased risk of postoperative complications and mortality. CONCLUSION: Elective THA in relatively healthy nonagenarians should only be considered among patients with disabling osteoarthritis demonstrating a restricted quality of life. Although THA can substantially improve patient wellbeing, our findings suggest that surgeons and patients must consider the impact of age on patient course and outcomes regardless of the presence of comorbidities. LEVEL OF EVIDENCE: Level II, prognostic study.


Asunto(s)
Artroplastia de Reemplazo de Cadera , Anciano de 80 o más Años , Artroplastia de Reemplazo de Cadera/efectos adversos , Procedimientos Quirúrgicos Electivos/efectos adversos , Femenino , Humanos , Masculino , Nonagenarios , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Mejoramiento de la Calidad , Calidad de Vida , Estudios Retrospectivos , Factores de Riesgo
3.
Colorectal Dis ; 23(8): 2041-2051, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33991168

RESUMEN

AIM: This study aimed to determine the clinical presentation, management and outcomes for patients with ileoanal pouch cancer. METHOD: Patients who were diagnosed with ileoanal pouch cancer were identified from our polyposis registry (1978-2019) and operative and referral records (2006-2019). Details of presentation, endoscopic surveillance, cancer staging and management were retrieved from hospital records. RESULTS: Eighteen patients were identified (12 with ulcerative colitis, one with Crohn's disease, three with familial adenomatous polyposis [FAP], two with dual diagnosis of FAP and inflammatory bowel disease). The median time from pouch formation to cancer diagnosis was 16.5 years (range 5-34 years) and the median age of the patient at pouch cancer diagnosis was 54 years (range 35-71 years). Eleven of the 18 patients were undergoing surveillance. Four of five FAP patients developed pouch cancer whilst on surveillance. Eight patients were asymptomatic at the time of pouch cancer diagnosis. Two patients had complete clinical response following chemoradiotherapy. Fourteen patients underwent pouch excision surgery (eight with exenteration). Median survival was 54 months; however, only eight patients had outcomes available beyond 24 months follow-up. CONCLUSIONS: Pouch cancer can occur in patients despite routine surveillance and without symptoms, and survival is poor. Centralization of 'high-risk' patients who require surveillance is recommended and a low threshold for referral to centres that can provide expert investigation and management is advised.


Asunto(s)
Poliposis Adenomatosa del Colon , Colitis Ulcerosa , Reservorios Cólicos , Enfermedad de Crohn , Proctocolectomía Restauradora , Poliposis Adenomatosa del Colon/cirugía , Adulto , Anciano , Colitis Ulcerosa/diagnóstico , Colitis Ulcerosa/cirugía , Reservorios Cólicos/efectos adversos , Enfermedad de Crohn/cirugía , Humanos , Persona de Mediana Edad , Proctocolectomía Restauradora/efectos adversos
4.
Neuroendocrinology ; 106(3): 242-251, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-28641291

RESUMEN

BACKGROUND: Appendiceal neuroendocrine neoplasms (ANEN) are mostly indolent tumours treated effectively with simple appendectomy. However, controversy exists regarding the necessity of oncologic right hemicolectomy (RH) in patients with histologic features suggestive of more aggressive disease. We assess the effects of current guidelines in selecting the surgical strategy (appendectomy or RH) for the management of ANEN. Methods/Aims: This is a retrospective review of all ANEN cases treated over a 14-year period at 3 referral centres and their management according to consensus guidelines of the European and the North American Neuroendocrine Tumor Societies (ENETS and NANETS, respectively). The operation performed, the tumour stage and grade, the extent of residual disease, and the follow-up outcomes were evaluated. RESULTS: Of 14,850 patients who had appendectomies, 215 (1.45%) had histologically confirmed ANEN. Four patients had synchronous non-ANEN malignancies. One hundred and ninety-three patients had index appendectomy. Seventeen patients (7.9%) had lymph node metastases within the mesoappendix. Forty-nine patients underwent RH after appendectomy. The percentages of 30-day morbidity and mortality after RH were 2 and 0%, respectively. Twelve patients (24.5%) receiving completion RH were found to have lymph node metastases. Two patients had liver metastases, both of them synchronous. The median follow-up was 38.5 months (range 1-143). No patient developed disease recurrence. Five- and 10-year overall survival for all patients with ANEN as the only malignancy was both 99.05%. CONCLUSIONS: The current guidelines appear effective in identifying ANEN patients at risk of harbouring nodal disease, but they question the oncological relevance of ANEN lymph node metastases. RH might present an overtreatment for a number of patients with ANEN.


Asunto(s)
Apendicectomía , Neoplasias del Apéndice/cirugía , Tumores Neuroendocrinos/cirugía , Adolescente , Adulto , Anciano , Neoplasias del Apéndice/diagnóstico por imagen , Neoplasias del Apéndice/mortalidad , Neoplasias del Apéndice/patología , Niño , Manejo de la Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Hepáticas/secundario , Metástasis Linfática , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Estadificación de Neoplasias , Tumores Neuroendocrinos/diagnóstico por imagen , Tumores Neuroendocrinos/mortalidad , Tumores Neuroendocrinos/patología , Estudios Prospectivos , Estudios Retrospectivos , Adulto Joven
5.
Dis Colon Rectum ; 60(3): 346-352, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28177998

RESUMEN

BACKGROUND: The management of recurrent rectal cancer is challenging. At the present time, pelvic exenteration with en bloc sacrectomy offers the only hope of a lasting cure. OBJECTIVE: The purpose of this study was to evaluate clinical outcome measures and complication rates following sacrectomy for recurrent rectal cancer. DATA SOURCES: A search was conducted on Pub Med for English language articles relevant to sacrectomy for recurrent rectal cancer with no time limitations. STUDY SELECTION: Studies reported sacrectomy with survival data for recurrent rectal adenocarcinoma. MAIN OUTCOME MEASURE: Disease-free survival following sacrectomy for recurrent rectal cancer was the main outcome measured. RESULTS: A total of 220 patients with recurrent rectal cancer were included from 7 studies, of which 160 were men and 60 were women. Overall median operative time was 717 (570-992) minutes and blood loss was 3.7 (1.7-6.2) L. An R0 (>1-mm resection margin) resection was achieved in 78% of patients. Disease-free survival associated with R0 resection was 55% at a median follow-up period of 33 (17-60) months; however, none of the patients with R1 (<1-mm resection margin) survived this period. Postoperative complication rates and median length of stay were found to decrease with more distal sacral transection levels. In contrast, R1 resection rates increased with more distal transection. LIMITATION: The studies assessed by this review were retrospective case series and thus are subject to significant bias. CONCLUSION: Sacrectomy performed for patients with recurrent rectal cancer is associated with significant postoperative morbidity. Morbidity and postoperative length of stay increase with the level of sacral transection. Nevertheless, approximately half of patients eligible for rectal excision with en bloc sacrectomy may benefit from disease-free survival for up to 33 months, with R0 resection predicting disease-free survival in the medium term.


Asunto(s)
Adenocarcinoma/cirugía , Recurrencia Local de Neoplasia/cirugía , Exenteración Pélvica , Neoplasias del Recto/cirugía , Sacro/cirugía , Adenocarcinoma/mortalidad , Supervivencia sin Enfermedad , Humanos , Recurrencia Local de Neoplasia/mortalidad , Neoplasias del Recto/mortalidad , Estudios Retrospectivos
6.
Int J Colorectal Dis ; 30(10): 1329-36, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26169634

RESUMEN

INTRODUCTION: Emergency surgery for colorectal cancer has been associated with high mortality. The aim of this study is to determine factors predictive of undergoing emergency surgery, of 30-day mortality, and explore the role of screening in patients undergoing emergency surgery. METHODS: All patients at our unit, undergoing surgery for colorectal cancer between 2004 and 2014 were included. Data on patient demographics, tumour staging, admission type, comorbidity score, mortality data, and screening data were analysed. Multivariable analyses were carried out to determine predictors of undergoing emergency surgery as well as mortality postoperatively. RESULTS: A total of 1911 consecutive patients underwent elective and emergency surgery for colorectal cancer. Of the 263 patients who underwent emergency surgery for CRC, 37.3 % (n = 98) had right-sided colonic cancers. Multivariable analyses determined right-sided cancers (OR 2.92, 95 % CI 2.03-4.20, p < 0.001) and stage IV tumours to be independently associated with undergoing emergency surgery (OR 6.64, 95 % CI 2.86-15.42, p < 0.001). Undergoing emergency surgery was an independent predictor of 30-day mortality (OR 9.62, 95 % CI 5.96-15.54, p < 0.001). Of the 50 patients that died within 30 days in the emergency surgery group, 32 % were in patients with right-sided colon cancers. Cancer detection through guaiac faecal occult blood testing (gFOBT) amongst this group is low with six out of nine patients having a false negative gFOBT test. CONCLUSION: Emergency CRC surgery is associated with high mortality. Alternative screening strategies that improve detection of proximal colon cancers may reduce the number of patients undergoing emergency surgery for right-sided cancers.


Asunto(s)
Neoplasias Colorrectales/cirugía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Colorrectales/mortalidad , Neoplasias Colorrectales/patología , Comorbilidad , Detección Precoz del Cáncer , Urgencias Médicas , Femenino , Guayaco , Mortalidad Hospitalaria , Humanos , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Estadificación de Neoplasias , Sangre Oculta , Reino Unido/epidemiología , Adulto Joven
7.
Eur J Surg Oncol ; 49(11): 106971, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37442715

RESUMEN

INTRODUCTION: Pathological factors that influence and predict survival following pelvic exenteration (PE) for locally advanced (LARC) or locally recurrent rectal cancer (LRRC), especially LRRC, remain poorly understood. A clear resection margin has previously been demonstrated to be of most significance. MATERIALS AND METHODS: A retrospective cohort study was performed for all patients undergoing a curative PE for LARC or LRRC between 2008 and 2021 at a tertiary referral UK specialist colorectal hospital. Cox regression analysis was planned to identify pathological factors associated with overall (OS), disease free (DFS) and local recurrence free survival (LRFS). RESULTS: 388 patients were included in the analysis with 256 resections for LARC and 132 for LRRC. 62.4% of patients were male with a median age of 59 years (IQR 49-67). 247 (64%) partial pelvic exenterations and 141 (36%) total pelvic exenterations performed. Overall R0 rate 86.6%. Poorly differentiated tumours and a positive resection margin independently influenced OS, DFS and LRFS on multivariate analysis in LARC. On multivariate analysis venous invasion negatively influenced DFS and poorly differentiated lesions negatively influenced LRFS in LRRC. CONCLUSIONS: A positive resection margin and poorly differentiated tumours are significant negative prognostic markers for survival and recurrence in LARC. The results of this study support the need to look for alternative prognostic markers beyond that in the existing standard reporting dataset for rectal cancers. With increasing R0 rates, novel prognostic pathological markers are required to help guide treatment and surveillance for patients with LRRC.


Asunto(s)
Exenteración Pélvica , Neoplasias del Recto , Humanos , Masculino , Persona de Mediana Edad , Anciano , Femenino , Estudios Retrospectivos , Márgenes de Escisión , Recurrencia Local de Neoplasia/patología , Neoplasias del Recto/patología , Recto/cirugía , Recto/patología , Resultado del Tratamiento
8.
BMJ Case Rep ; 14(10)2021 Oct 08.
Artículo en Inglés | MEDLINE | ID: mdl-34625439

RESUMEN

A generally well 71-year-old man presented to his general practitioner with altered bowel habit and haematochezia. Colonoscopy revealed a malignant-appearing rectal mass, with histological features of extrapulmonary small cell carcinoma (EPSCC) of the rectum. Imaging demonstrated limited stage disease with a threatened circumferential resection margin. He was treated with a modified platinum chemoradiotherapy regimen for small cell lung cancer with an excellent response. Unfortunately, his cardiac function precluded surgery at the time and the patient subsequently developed hepatic metastases with local disease recurrence, and died 15 months following his initial diagnosis. Rectal EPSCC is a rare diagnosis, and this case represented a challenge for the multidisciplinary team given the limited evidence base. Medical therapy reflects extrapolation of small cell lung cancer treatment and the role of surgery is less clearly defined given aggressive and refractory disease is common. Immunotherapy, however, represents an exciting development for metastatic disease.


Asunto(s)
Carcinoma de Células Pequeñas , Neoplasias del Recto , Anciano , Carcinoma de Células Pequeñas/terapia , Quimioradioterapia , Humanos , Masculino , Recurrencia Local de Neoplasia , Neoplasias del Recto/diagnóstico , Neoplasias del Recto/terapia , Recto
9.
BMJ Case Rep ; 14(2)2021 Feb 08.
Artículo en Inglés | MEDLINE | ID: mdl-33558378

RESUMEN

Few cases of pouch-related cancers have been reported in inflammatory bowel disease, and squamous cell carcinoma (SCC) is very rare. We have reviewed the published literature searching the online databases PubMed and Medline. Since 1979, there have been eight cases of SCC developing after restorative proctocolectomy in ulcerative colitis. To date, there have been no reported cases of SCC of the ileo-anal pouch in Crohn's disease. We present the case of a 59-year-old woman who underwent colectomy with ileal pouch-anal anastomosis for Crohn's disease during the 1990s. The patient was noted to be anaemic and was experiencing significant weight loss with poor pouch function in 2019. Endoscopy with histology and radiological investigation revealed the presence of SCC of the pouch. This was subsequently treated with surgical therapy and chemoradiotherapy.


Asunto(s)
Carcinoma de Células Escamosas/patología , Neoplasias del Colon/patología , Reservorios Cólicos/patología , Enfermedad de Crohn/patología , Carcinoma de Células Escamosas/complicaciones , Carcinoma de Células Escamosas/terapia , Quimioradioterapia Adyuvante , Neoplasias del Colon/complicaciones , Neoplasias del Colon/terapia , Enfermedad de Crohn/complicaciones , Enfermedad de Crohn/cirugía , Femenino , Humanos , Ileostomía , Persona de Mediana Edad , Terapia Neoadyuvante , Proctocolectomía Restauradora
10.
J Hepatol ; 53(1): 170-8, 2010 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-20447715

RESUMEN

BACKGROUND & AIMS: Progressive familial intrahepatic cholestasis (PFIC) with normal serum levels of gamma-glutamyltranspeptidase can result from mutations in ATP8B1 (encoding familial intrahepatic cholestasis 1 [FIC1]) or ABCB11 (encoding bile salt export pump [BSEP]). We evaluated clinical and laboratory features of disease in patients diagnosed with PFIC, who carried mutations in ATP8B1 (FIC1 deficiency) or ABCB11 (BSEP deficiency). Our goal was to identify features that distinguish presentation and course of these two disorders, thus facilitating diagnosis and elucidating the differing consequences of ATP8B1 and ABCB11 mutations. METHODS: A retrospective multi-center study was conducted, using questionnaires and chart review. Available clinical and biochemical data from 145 PFIC patients with mutations in either ATP8B1 (61 "FIC1 patients") or ABCB11 (84 "BSEP patients") were evaluated. RESULTS: At presentation, serum aminotransferase and bile salt levels were higher in BSEP patients; serum alkaline phosphatase values were higher, and serum albumin values were lower, in FIC1 patients. Elevated white blood cell counts, and giant or multinucleate cells at liver biopsy, were more common in BSEP patients. BSEP patients more often had gallstones and portal hypertension. Diarrhea, pancreatic disease, rickets, pneumonia, abnormal sweat tests, hearing impairment, and poor growth were more common in FIC1 patients. Among BSEP patients, the course of disease was less rapidly progressive in patients bearing the D482G mutation. CONCLUSIONS: Severe forms of FIC1 and BSEP deficiency differed. BSEP patients manifested more severe hepatobiliary disease, while FIC1 patients showed greater evidence of extrahepatic disease.


Asunto(s)
Transportadoras de Casetes de Unión a ATP/genética , Adenosina Trifosfatasas/deficiencia , Adenosina Trifosfatasas/genética , Colestasis Intrahepática/diagnóstico , Colestasis Intrahepática/genética , Mutación , Miembro 11 de la Subfamilia B de Transportador de Casetes de Unión al ATP , Transportadoras de Casetes de Unión a ATP/metabolismo , Adolescente , Adulto , Edad de Inicio , Ácidos y Sales Biliares/metabolismo , Niño , Preescolar , Colestasis Intrahepática/metabolismo , Diagnóstico Diferencial , Progresión de la Enfermedad , Femenino , Humanos , Lactante , Recién Nacido , Estimación de Kaplan-Meier , Masculino , Fenotipo , Embarazo , Estudios Retrospectivos , Adulto Joven , gamma-Glutamiltransferasa/sangre
11.
Lancet Oncol ; 10(11): 1053-62, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19767239

RESUMEN

BACKGROUND: Lateral pelvic lymph-node metastases occur in 10-25% of patients with rectal cancer, and are associated with higher local recurrence and reduced survival rates. A meta-analysis was undertaken to assess the value of extended lateral pelvic lymphadenectomy in the operative management of rectal cancer. METHODS: We searched Medline, Embase, Ovid, Cochrane Library, and Google Scholar for studies published between 1965 and 2009 that compared extended lymphadenectomy (EL) with standard rectal resection. 20 studies, which included 5502 patients from one randomised, three prospective non-randomised, and 14 retrospective case-control studies published between 1984 and 2009, met our search criteria and were assessed. 2577 patients underwent EL and 2925 underwent non-EL for rectal cancer. Random and fixed-effects meta-analytical models were used where indicated, and between-study heterogeneity was assessed. End-points evaluated included peri-operative outcomes, 5-year survival and recurrence rates. FINDINGS: Operating time was significantly longer in the EL group by 76.7 min (95% CI 18.77-134.68; p=0.0096). Intra-operative blood loss was greater in the EL group by 536.5 mL (95% CI 353.7-719.2; p<0.0001). Peri-operative mortality (OR 0.81, 95% CI 0.34-1.93; p=0.63) and morbidity (OR 1.45, 95% CI 0.89-2.35; p=0.13) were similar between the two groups. Data from individual studies showed that male sexual dysfunction and urinary dysfunction (three studies: OR 3.70, 95% CI 1.66-8.23; p=0.0012) were more prevalent in the EL group. There were no significant differences in 5-year survival (hazard ratio [HR] 1.09, 95% CI 0.78-1.50; p=0.62), 5-year disease-free survival (HR 1.23, 95% CI 0.75-2.03, p=0.41), and local (OR 0.83, 95% CI 0.61-1.13; p=0.23) or distant recurrence (OR 0.93, 95% CI 0.72-1.21; p=0.60). INTERPRETATION: Extended lymphadenectomy does not seem to confer a significant overall cancer-specific advantage, but does seem to be associated with increased urinary and sexual dysfunction.


Asunto(s)
Escisión del Ganglio Linfático/métodos , Recurrencia Local de Neoplasia , Neoplasias del Recto/cirugía , Pueblo Asiatico , Pérdida de Sangre Quirúrgica , Supervivencia sin Enfermedad , Femenino , Humanos , Japón , Escisión del Ganglio Linfático/efectos adversos , Metástasis Linfática , Masculino , Estadificación de Neoplasias , Oportunidad Relativa , Neoplasias del Recto/etnología , Neoplasias del Recto/mortalidad , Neoplasias del Recto/secundario , Medición de Riesgo , Disfunciones Sexuales Fisiológicas/etiología , Factores de Tiempo , Resultado del Tratamiento , Trastornos Urinarios/etiología , Mundo Occidental
12.
Gastroenterology ; 134(4): 1203-14, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18395098

RESUMEN

BACKGROUND & AIMS: Patients with severe bile salt export pump (BSEP) deficiency present as infants with progressive cholestatic liver disease. We characterized mutations of ABCB11 (encoding BSEP) in such patients and correlated genotypes with residual protein detection and risk of malignancy. METHODS: Patients with intrahepatic cholestasis suggestive of BSEP deficiency were investigated by single-strand conformation polymorphism analysis and sequencing of ABCB11. Genotypes sorted by likely phenotypic severity were correlated with data on BSEP immunohistochemistry and clinical outcome. RESULTS: Eighty-two different mutations (52 novel) were identified in 109 families (9 nonsense mutations, 10 small insertions and deletions, 15 splice-site changes, 3 whole-gene deletions, 45 missense changes). In 7 families, only a single heterozygous mutation was identified despite complete sequence analysis. Thirty-two percent of mutations occurred in >1 family, with E297G and/or D482G present in 58% of European families (52/89). On immunohistochemical analysis (88 patients), 93% had abnormal or absent BSEP staining. Expression varied most for E297G and D482G, with some BSEP detected in 45% of patients (19/42) with these mutations. Hepatocellular carcinoma or cholangiocarcinoma developed in 15% of patients (19/128). Two protein-truncating mutations conferred particular risk; 38% (8/21) of such patients developed malignancy versus 10% (11/107) with potentially less severe genotypes (relative risk, 3.7 [confidence limits, 1.7-8.1; P = .003]). CONCLUSIONS: With this study, >100 ABCB11 mutations are now identified. Immunohistochemically detectable BSEP is typically absent, or much reduced, in severe disease. BSEP deficiency confers risk of hepatobiliary malignancy. Close surveillance of BSEP-deficient patients retaining their native liver, particularly those carrying 2 null mutations, is essential.


Asunto(s)
Transportadoras de Casetes de Unión a ATP/genética , Transportadoras de Casetes de Unión a ATP/metabolismo , Colestasis Intrahepática/genética , ADN de Neoplasias/genética , Familia , Miembro 11 de la Subfamilia B de Transportador de Casetes de Unión al ATP , Alelos , Neoplasias de los Conductos Biliares/epidemiología , Neoplasias de los Conductos Biliares/etiología , Conductos Biliares Intrahepáticos , Carcinoma Hepatocelular/epidemiología , Carcinoma Hepatocelular/etiología , Colangiocarcinoma/epidemiología , Colangiocarcinoma/etiología , Colestasis Intrahepática/complicaciones , Colestasis Intrahepática/metabolismo , Intervalos de Confianza , Femenino , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Inmunohistoquímica , Incidencia , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/etiología , Masculino , Mutación , Reacción en Cadena de la Polimerasa , Polimorfismo Conformacional Retorcido-Simple , Factores de Riesgo , Análisis de Secuencia de ADN , Estados Unidos/epidemiología
13.
Gastroenterol Res Pract ; 2019: 5180895, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31065262

RESUMEN

Colorectal peritoneal metastases (CPM) are associated with abbreviated survival and significantly impaired quality of life. In patients with CPM, radical multimodality treatment consisting of cytoreductive surgery (CRS) combined with hyperthermic intraperitoneal chemotherapy (HIPEC) has demonstrated oncological superiority over systemic chemotherapy alone. In highly selected patients undergoing CRS + HIPEC, overall survival of over 60% has been reported in some series. These are patients in whom the disease burden is limited and where the diagnosis is made at an early stage in the disease course. Early diagnosis and a deeper understanding of the biological mechanisms that regulate CPM are critical to refining patient selection for radical treatment, personalising therapeutic approaches, enhancing prognostication, and ultimately improving long-term survivorship. In the present study, we outline three broad themes which represent critical future research targets in CPM: (1) enhanced radiological strategies for early detection and staging; (2) identification and validation of translational biomarkers for diagnostic, prognostic, and therapeutic deployment; and (3) development of optimized approaches for surgical cytoreduction as well as more precise strategies for intraperitoneal drug selection and delivery. Herein, we provide a contemporary narrative review of the state of the art in these three areas. A systematic review in accordance with PRISMA guidelines was undertaken on all English language studies published between 2007 and 2017. In vitro and animal model studies were deemed eligible for inclusion in the sections pertaining to biomarkers and therapeutic optimisation, as these areas of research currently remain in the early stages of development. Acquired data were then divided into hierarchical thematic categories (imaging modalities, translational biomarkers (diagnostic/prognostic/therapeutic), and delivery techniques) and subcategories. An interactive sunburst figure is provided for intuitive interrogation of the CPM research landscape.

14.
Ann Surg ; 248(5): 800-6, 2008 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-18948807

RESUMEN

OBJECTIVE: This study investigated length of stay, readmission rates, and postoperative mortality in adult patients undergoing traditional and laparoscopic appendectomy in England between April 1, 1996, and March 31, 2006. METHODS: All procedures coded to the "H01-Emergency Excision of Appendix" procedure code in the Hospital Episode Statistics database were included. Multivariate analyses were used to identify independent predictors of length of hospital stay, 30-day and 365-day mortality. RESULTS: A total of 259,735 procedures were assigned to the H01-Emergency excision of appendix OPCS-4 3-digit code procedure between 1996 and 2006. A laparoscopic technique was employed in 16,315 (6.3%). A greater proportion of deaths occurred in hospital within 30 days of "open" appendectomy surgery (0.25%) compared with procedures utilizing a laparoscopic technique (0.09%, P < 0.001). One-year mortality rates, measured over a 5-year period, were also higher after open surgery (0.64% vs. 0.29%, P < 0.001). Multiple logistic regressions demonstrated that an open operative technique, older age, male gender, and increasing comorbidity were strong independent determinants of early and 1-year postoperative mortality after emergency appendectomy. The duration of stay for patients undergoing open emergency appendectomy exceeded that for patients undergoing the laparoscopic technique (P < 0.001). Patients undergoing a laparoscopic technique were, however, more likely to be readmitted within 28 days of surgery (7.10% vs. 4.95%, P < 0.001). CONCLUSIONS: Laparoscopic appendectomy is safe and associated with lower postoperative mortality rates than open procedures. The cost implications are uncertain as this technique is associated with shorter hospital stay but higher subsequent readmission rates.


Asunto(s)
Apendicectomía/estadística & datos numéricos , Laparoscopía/estadística & datos numéricos , Adolescente , Adulto , Anciano , Apendicectomía/métodos , Apendicectomía/mortalidad , Servicios Médicos de Urgencia/estadística & datos numéricos , Inglaterra , Femenino , Mortalidad Hospitalaria , Humanos , Laparoscopía/métodos , Laparoscopía/mortalidad , Laparotomía/mortalidad , Laparotomía/estadística & datos numéricos , Tiempo de Internación , Modelos Logísticos , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Readmisión del Paciente/estadística & datos numéricos , Estudios Retrospectivos , Medicina Estatal
15.
Surgery ; 141(2): 203-211, 2007 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-17263977

RESUMEN

BACKGROUND: Laparoscopic surgery for hepatic neoplasms aims to provide curative resection while minimizing complications. The present study compared laparoscopic versus open surgery for patients with hepatic neoplasms with regard to short-term outcomes. METHODS: Comparative studies published between 1998 and 2005 were included. Evaluated endpoints were operative, functional, and adverse events. A random-effects model was used and sensitivity analysis performed to account for bias in patient selection. RESULTS: Eight nonrandomized studies were included, reporting on 409 resections of hepatic neoplasms, of which 165 (40.3%) were laparoscopic and 244 (59.7%) were open. Operative blood loss (weighted mean difference = -123 mL; confidence interval = -179, -67 mL) and duration of hospital stay (weighted mean difference = -2.6 days; confidence interval = -3.8, -1.4 days) were significantly reduced after laparoscopic surgery. These findings remained consistent when considering studies matched for the presence of malignancy and segment resection. There was no difference in postoperative adverse events and extent of oncologic clearance. CONCLUSIONS: Laparoscopic resection results in reduced operative blood loss and earlier recovery with oncologic clearance comparable with open surgery. When performed by experienced surgeons in selected patients it may be a safe and feasible option. Because of the potential of significant bias arising from the included studies, further randomized controlled trials should be undertaken to confirm this bias and to assess long-term survival rates.


Asunto(s)
Hepatectomía/métodos , Laparoscopía/métodos , Neoplasias Hepáticas/cirugía , Hepatectomía/efectos adversos , Humanos , Laparoscopía/efectos adversos , Periodo Posoperatorio
16.
Surgery ; 141(1): 9-18, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17188163

RESUMEN

BACKGROUND: The perioperative risk and long-term survival benefit of repeat hepatectomy for patients with liver metastases from colorectal cancer, compared with that of a first liver resection, has been reported with varying results in the literature. METHODS: The literature was searched using Medline, Embase, Ovid, and Cochrane databases for all studies published from 1992 to 2006. Two authors independently extracted data using the following outcomes: postoperative complications and mortality; disease recurrence; and long-term survival. Trials were assessed using the modified Newcastle-Ottawa Score. Random-effect meta-analytical techniques were used for analysis. RESULTS: Twenty-one studies met the inclusion criteria, comprising 3,741 patients. The use of adjuvant chemotherapy was similar in both groups (odds ratio [OR] = 0.97; 95% confidence interval [CI] = 0.54, 1.74; P = .92), as was the number of hepatic nodules present at the time of first or second resection (weighted mean difference [WMD] = 0.18; 95% CI = -0.22, 0.57; P = .380). Wedge resection was carried out less often at first hepatectomy (39% vs 46%; OR = 0.66; 95% CI = 0.44, 1.00; P = .05). There was significantly less blood loss in patients undergoing first versus second hepatectomy (WMD = 238 ml; 95% CI = 90, 385; P = .002). There was no difference in perioperative morbidity (OR = 1.01; 95% CI = 0.65, 1.55; P = .98), mortality (OR = 1.01; 95% CI = 0.18, 5.72; P = .99) or long-term survival (HR = 0.90; 95% CI = .66, 1.24; P = .530) between groups. CONCLUSIONS: Repeat hepatectomy for patients with colorectal cancer metastases is safe and provides survival benefit equal to that of a first liver resection.


Asunto(s)
Neoplasias Colorrectales , Neoplasias Hepáticas/secundario , Neoplasias Hepáticas/cirugía , Neoplasias Colorrectales/mortalidad , Hepatectomía/efectos adversos , Humanos , Neoplasias Hepáticas/mortalidad , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/cirugía , Reoperación , Factores de Riesgo , Seguridad , Tasa de Supervivencia , Resultado del Tratamiento
18.
Simul Healthc ; 6(3): 176-9, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21646985

RESUMEN

INTRODUCTION: : Laparoscopic surgery is becoming the main surgical technique in use today. Surgical trainees have to be able to practice these skills in a safe environment. This article describes the design of a novel cheap home laparoscopic trainer using recycled and reusable items. METHODS: : This novel home laparoscopic trainer is designed using a mobile phone, torch, and shoe box. Fifteen surgical trainees with variable laparoscopic experience used the device and provided feedback by filling in a Likert scale questionnaire. RESULTS: : This is a device that is easy to make and reuse with equipment that is easily accessible in most environments. All the trainees who used the device found it easy to use and helpful for practicing hand-eye coordination. CONCLUSIONS: : This is simple and low-cost device allows trainees to practice laparoscopic skills in a safe environment. It provides a design that is accessible and recyclable, hence useful as a low-technology device in places where finances are limited.


Asunto(s)
Educación Médica/métodos , Laparoscopía/instrumentación , Materiales de Enseñanza , Teléfono Celular , Ambiente , Diseño de Equipo , Humanos
20.
Eur J Cancer ; 47(16): 2403-7, 2011 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-21778048

RESUMEN

BACKGROUND AND OBJECTIVES: Since the introduction of highly active antiretroviral therapy (HAART), non-AIDS defining malignancies including colorectal cancer (CRC) have emerged as major health concerns for people living with HIV. METHODS: From a prospective database of 11,112 HIV seropositive individuals, we identified 11 patients with CRC. Clinicopathological details on the presentation, treatment and outcomes were collected. RESULTS: All were male with a median age of 50 years (range 36-67) and median duration of HIV infection of 7.2 years (range 0-21). Five had metastatic disease at presentation, including 1 patient with a small cell cancer of the rectum. Patients were treated along conventional lines for CRC with concomitant HAART and opportunistic infection prophylaxis. During treatment, median CD4 cell counts fell from 357/mm(3) at CRC diagnosis to 199/mm(3), although no opportunistic infections were recorded. Three patients have died and the 5-year overall survival measured 65% (95% confidence interval 32-98%). CONCLUSIONS: Treatment for CRC reduces cellular immunity and potentially puts HIV patients at risk of opportunistic infections; knowledge of HIV status prior to starting treatment is essential. This risk may be reduced by concomitant HAART and prophylaxis. Clinicians managing CRC should consider screening patients for HIV before starting chemotherapy or radiotherapy.


Asunto(s)
Terapia Antirretroviral Altamente Activa/efectos adversos , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/inmunología , Infecciones por VIH/inmunología , Infecciones Oportunistas Relacionadas con el SIDA/etiología , Infecciones Oportunistas Relacionadas con el SIDA/prevención & control , Adulto , Anciano , Recuento de Linfocito CD4 , Neoplasias Colorrectales/mortalidad , Inglaterra/epidemiología , Métodos Epidemiológicos , Infecciones por VIH/mortalidad , Humanos , Inmunidad Celular/efectos de los fármacos , Masculino , Persona de Mediana Edad
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA