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1.
World J Surg ; 42(8): 2507-2511, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29372375

RESUMEN

BACKGROUND: Leaks from the upper gastrointestinal tract often pose a management challenge, particularly when surgical treatment has failed or is impossible. Vacuum therapy has revolutionised the treatment of wounds, and its role in enabling and accelerating healing is now explored in oesophagogastric surgery. METHODS: A piece of open cell foam is sutured around the distal end of a nasogastric tube using a silk suture. Under general anaesthetic, the foam covered tip is placed endoscopically through the perforation and into any extra-luminal cavity. Continuous negative pressure (125 mmHg) is then applied. Re-evaluation with change of the negative pressure system is performed every 48-72 h depending on the clinical condition. Patients are fed enterally and treated with broad-spectrum antibiotics and anti-fungal medication until healing, assessed endoscopically and/or radiologically, is complete. RESULTS: Since April 2011, twenty one patients have been treated. The cause of the leak was postoperative/iatrogenic complications (14 patients) and ischaemic/spontaneous perforation (seven patients). Twenty patients (95%) completed treatment successfully with healing of the defect and/or resolution of the cavity and were subsequently discharged from our care. One patient died from sepsis related to an oesophageal leak after withdrawing consent for further intervention following a single endoluminal vacuum (E-Vac) treatment. In addition, two patients who were successfully treated with E-Vac for their leak subsequently died within 90 days of E-Vac treatment from complications that were not associated with the E-Vac procedure. In two patients, E-Vac treatment was complicated by bleeding. The median number of E-Vac changes was 7 (range 3-12), and the median length of hospital stay was 35 days (range 23-152). CONCLUSIONS: E-Vac therapy is a safe and effective treatment for upper gastrointestinal leaks and should be considered alongside more established therapies. Further research is now needed to understand the mechanism of action and to improve the ease with which E-Vac therapy can be delivered.


Asunto(s)
Esófago/cirugía , Terapia de Presión Negativa para Heridas , Complicaciones Posoperatorias/cirugía , Anciano de 80 o más Años , Femenino , Humanos , Tiempo de Internación , Persona de Mediana Edad , Terapia de Presión Negativa para Heridas/efectos adversos , Terapia de Presión Negativa para Heridas/métodos , Complicaciones Posoperatorias/mortalidad , Sepsis/etiología , Resultado del Tratamiento , Vacio , Cicatrización de Heridas
2.
Br J Surg ; 103(5): 544-52, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26865114

RESUMEN

BACKGROUND: Until recently, oesophagectomy was the treatment of choice for early oesophageal cancer. Endoscopic treatment has been introduced relatively recently. This observational national database study aimed to describe how endoscopic therapy has been introduced in England and to examine the safety of this approach. METHODS: A population-based cohort study was undertaken of patients diagnosed with oesophageal adenocarcinoma between October 2007 and June 2009 using three linked national databases. Patients with early-stage disease (T1 tumours with no evidence of spread) were identified, along with the primary treatment modality where treatment intent was curative. Short-term outcomes after treatment and 5-year survival were evaluated. RESULTS: Of 5192 patients diagnosed with oesophageal adenocarcinoma, 306 (5·9 per cent) were considered to have early-stage disease before any treatment, of whom 239 (79·9 per cent of 299 patients with data on treatment intent) were managed with curative intent. Of 175 patients who had an oesophagectomy, 114 (65·1 (95 per cent c.i. 57·6 to 72·7) per cent) survived for 5 years. Among these, 47 (30·3 per cent of 155 patients with tissue results available) had their disease upstaged after pathological staging; this occurred more often in patients who did not have staging endoscopic ultrasonography before surgery. Of 41 patients who had an endoscopic resection, 27 (66 (95 per cent c.i. 49 to 80) per cent) survived for 5 years. Repeat endoscopic therapy was required by 23 (56 per cent) of these 41 patients. CONCLUSION: Between 2007 and 2009, oesophagectomy remained the initial treatment of choice (73·2 per cent) among patients with early-stage oesophageal cancer treated with curative intent; one in five patients were managed endoscopically, and this treatment was more common in elderly patients. Although the groups had different patient characteristics, 5-year survival rates were similar.


Asunto(s)
Adenocarcinoma/cirugía , Neoplasias Esofágicas/cirugía , Esofagectomía/estadística & datos numéricos , Esofagoscopía/estadística & datos numéricos , Pautas de la Práctica en Medicina/tendencias , Adenocarcinoma/mortalidad , Adenocarcinoma/patología , Adulto , Anciano , Estudios de Cohortes , Bases de Datos Factuales , Inglaterra , Neoplasias Esofágicas/mortalidad , Neoplasias Esofágicas/patología , Esofagectomía/tendencias , Esofagoscopía/tendencias , Femenino , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Pautas de la Práctica en Medicina/estadística & datos numéricos , Tasa de Supervivencia , Resultado del Tratamiento
3.
Br J Cancer ; 107(11): 1908-14, 2012 Nov 20.
Artículo en Inglés | MEDLINE | ID: mdl-23059745

RESUMEN

BACKGROUND: This study investigated the variation in incidence of all, and six subgroups of, oesophageal and gastric cancer between ethnic groups. METHODS: Data on all oesophageal and gastric cancer patients diagnosed between 2001 and 2007 in England were analysed. Self-assigned ethnicity from the Hospital Episode Statistics dataset was used. Male and female age-standardised incidence rate ratios (IRRs) were calculated for each ethnic group, using White groups as the references. RESULTS: Ethnicity information was available for 83% of patients (76 130/92 205). White men had a higher incidence of oesophageal cancer, with IRR for the other ethnic groups ranging from 0.17 95% confidence interval (CI) (0.15-0.20) (Pakistani men) to 0.58 95% CI (0.50-0.67) (Black Caribbean men). Compared with White women, Bangladeshi women (IRR 2.02 (1.24-3.29)) had a higher incidence of oesophageal cancer. For gastric cancer, Black Caribbean men (1.39 (1.22-1.60)) and women (1.57 (1.28-1.92)) had a higher incidence compared with their White counterparts. In the subgroup analysis, White men had a higher incidence of lower oesophageal and gastric cardia cancer compared with the other ethnic groups studied. Bangladeshi women (3.10 (1.60-6.00)) had a higher incidence of upper and middle oesophageal cancer compared with White women. CONCLUSION: Substantial ethnic differences in the incidence of oesophageal and gastric cancer were found. Further research into differences in exposures to risk factors between ethnic groups could elucidate why the observed variation in incidence exists.


Asunto(s)
Neoplasias Esofágicas/etnología , Neoplasias Esofágicas/epidemiología , Neoplasias Gástricas/etnología , Neoplasias Gástricas/epidemiología , Anciano , Población Negra , Inglaterra/epidemiología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Riesgo , Población Blanca
4.
Br J Surg ; 96(7): 724-33, 2009 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-19526624

RESUMEN

BACKGROUND: Oesophageal adenocarcinoma is the commonest oesophageal malignancy in the West, but is staged using a system designed for squamous cell carcinoma. The aim was to develop and validate a staging system for oesophageal and junctional adenocarcinoma. METHODS: Patients with oesophageal adenocarcinoma (Siewert types I and II) undergoing oesophagectomy with curative intent were randomly assigned to generation (313 patients) and validation (131) data sets. Outcome in the generation data set was associated with histopathological features; a revised node (N) classification was derived using recursive partitioning and tested on the validation data set. RESULTS: A revised N classification based on number of involved lymph nodes (N0, none; N1, one to five; N2, six or more) was prognostically significant (P < 0.001). Patients with involved nodes on both sides of the diaphragm, regardless of number, had the same outcome as the N2 group. When applied to the validation data set, the revised classification (including nodal number and location) provided greater discrimination between node-positive patients than the existing system (P < 0.001). CONCLUSION: A revised N classification based on number and location of involved lymph nodes provides improved prognostic power and incorporates features that may be useful before surgery in clinical management decisions.


Asunto(s)
Adenocarcinoma/clasificación , Neoplasias Esofágicas/clasificación , Esofagectomía , Unión Esofagogástrica , Adenocarcinoma/patología , Adenocarcinoma/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Métodos Epidemiológicos , Neoplasias Esofágicas/patología , Neoplasias Esofágicas/cirugía , Unión Esofagogástrica/patología , Unión Esofagogástrica/cirugía , Femenino , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Pronóstico , Resultado del Tratamiento
5.
J Pathol ; 216(3): 286-94, 2008 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-18825658

RESUMEN

Hereditary diffuse gastric cancer (HDGC) is caused by germline E-cadherin (CDH1) mutations in 25-40% of tested families. Management options for asymptomatic mutation carriers are fraught, since endoscopic surveillance can miss cancer foci and prophylactic gastrectomy has profound clinical sequelae. The aims of this study were to evaluate the impact of current surveillance practices on pre-operative diagnosis and to characterize the microscopic lesions in gastrectomy specimens to better inform clinical practice. Histological assessment and mapping of endoscopic surveillance and gastrectomy specimens were performed for eight asymptomatic CDH1 mutation carriers. E-cadherin expression and proliferation were analysed and evidence of epithelial-mesenchymal transition (EMT) was sought by immunohistochemistry for vimentin and cytokeratin 8/18. Four of eight patients had lesions detected at endoscopic surveillance. A median of 20.5 (range 0-66) signet ring foci were identified per gastrectomy (including in situ lesions and pagetoid spread). Foci were predominantly identified in the fundus and body (90% endoscopic biopsies and 85% in gastrectomy). The likelihood of detecting foci pre-operatively was positively correlated with the number of biopsies taken and the number of lesions in the gastrectomy specimen. E-cadherin expression in gastrectomy specimens was reduced or absent in all of the foci compared with the intervening gastric tissue, suggesting that these lesions are polyclonal. The foci had a low proliferative index (<2%) and there was no evidence for EMT. Multiple endoscopic biopsy sampling of the gastric mucosa increases the yield of microscopic cancer foci. The low proliferative index and lack of EMT suggests that these foci may represent an indolent stage of HDGC.


Asunto(s)
Cadherinas/genética , Carcinoma de Células en Anillo de Sello/genética , Mutación de Línea Germinal , Neoplasias Gástricas/genética , Adulto , Antígenos CD , Biomarcadores de Tumor/análisis , Biopsia , Cadherinas/análisis , Carcinoma de Células en Anillo de Sello/química , Carcinoma de Células en Anillo de Sello/patología , Proliferación Celular , Técnica del Anticuerpo Fluorescente , Mucosa Gástrica/química , Mucosa Gástrica/patología , Gastroscopía , Predisposición Genética a la Enfermedad , Humanos , Inmunohistoquímica , Queratina-8/análisis , Masculino , Persona de Mediana Edad , Neoplasias Gástricas/química , Neoplasias Gástricas/patología , Vimentina/análisis
6.
Ann R Coll Surg Engl ; 101(7): 479-486, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31155901

RESUMEN

INTRODUCTION: We aimed to enhance the emergency general surgical service in our high-volume centre in order to reduce four-hour target breaches, to expedite senior decision making and to avoid unnecessary admissions. MATERIALS AND METHODS: The aggregation of marginal gains theory was applied. A dual consultant on-call system was established by the incremental employment of five emergency general surgeons with a specialist interest in colorectal or oesophagogastric surgery. A surgical ambulatory care unit, which combines consultant-led clinical review with dedicated next-day radiology slots, and a dedicated working week half-day gastrointestinal urgent theatre session were instituted to facilitate ambulatory care pathways. RESULTS: The presence of two consultant surgeons being on call during weekday working hours decreased the four-hour target breaches and allowed consultant presence in the surgical ambulatory care clinic and the gastrointestinal urgent theatre list. Of 1371 surgical ambulatory care clinic appointments within 30 months, 1135 (82.7%) avoided a hospital admission, corresponding to savings of £309,752 . The coordinated functioning of the surgical ambulatory care clinic and the gastrointestinal urgent theatre list resulted in statistically significantly reduced hospital stays for patients operated for abscess drainage (gastrointestinal urgent theatre median 11 hours (interquartile range 3, 38) compared with emergency median 31 hours (interquartile range 24, 53), P < 0.001) or diagnostic laparoscopy/appendicectomy (gastrointestinal urgent theatre median 52 hours (interquartile range 41, 71) compared with emergency median 61 hours (interquartile range 43, 99), P = 0.005). Overnight surgery was reduced with only surgery that was absolutely necessary occurring out of hours. CONCLUSION: The expansion of the 'traditional' on-call surgical team, the establishment of the surgical ambulatory care clinic and the gastrointestinal urgent theatre list led to marginal gains with a reduction in unnecessary inpatient stays, expedited decision making and improved financial efficiency.


Asunto(s)
Instituciones de Atención Ambulatoria/organización & administración , Cuidados Críticos/organización & administración , Servicio de Urgencia en Hospital/organización & administración , Hospitales de Alto Volumen , Procedimientos Quirúrgicos Operativos/estadística & datos numéricos , Adulto , Anciano , Instituciones de Atención Ambulatoria/economía , Consultores , Servicio de Urgencia en Hospital/economía , Inglaterra , Femenino , Humanos , Tiempo de Internación/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Admisión del Paciente/estadística & datos numéricos , Horario de Trabajo por Turnos/estadística & datos numéricos , Servicio de Cirugía en Hospital/economía , Servicio de Cirugía en Hospital/organización & administración , Procedimientos Quirúrgicos Operativos/economía , Carga de Trabajo/estadística & datos numéricos , Adulto Joven
7.
World J Gastroenterol ; 13(28): 3892-4, 2007 Jul 28.
Artículo en Inglés | MEDLINE | ID: mdl-17657849

RESUMEN

Enteroenteric intussusception is a condition in which full-thickness bowel wall becomes telescoped into the lumen of distal bowel. In adults, there is usually an abnormality acting as a lead point, usually a Meckels' diverticulum, a hamartoma or a tumour. Duodeno-duodenal intussusception is exceptionally rare because the retroperitoneal situation fixes the duodenal wall. The aim of this report is to describe the first published case of this condition. A patient with duodeno-duodenal intussusception secondary to an ampullary lesion is reported. A 66 year-old lady presented with intermittent abdominal pain, weight loss and anaemia. Ultrasound scanning showed dilated bile and pancreatic ducts. CT scanning revealed intussusception involving the full-thickness duodenal wall. The lead point was an ampullary villous adenoma. Congenital partial (type II) malrotation was found at operation and this abnormality permitted excessive mobility of the duodenal wall such that intussusception was possible. This condition can be diagnosed using enhanced CT. Intussusception can be complicated by bowel obstruction, ischaemia or bleeding, and therefore the underlying cause should be treated as soon as possible.


Asunto(s)
Adenoma de los Conductos Biliares/complicaciones , Neoplasias del Conducto Colédoco/complicaciones , Obstrucción Duodenal/etiología , Duodeno/anomalías , Intususcepción/etiología , Anciano , Obstrucción Duodenal/diagnóstico , Femenino , Humanos , Intususcepción/diagnóstico , Rotación
8.
Eur J Surg Oncol ; 42(1): 116-22, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26461256

RESUMEN

INTRODUCTION: EURECCA (EUropean REgistration of Cancer CAre) is a network aiming to improve cancer care by auditing outcome. EURECCA initiated an international survey to share and compare patient outcome for oesophagogastric cancer. The present study assessed how a uniform dataset could be introduced for oesophagogastric cancer in Europe. METHODS: Participating countries presented data using common data items describing patients', disease, strategies, and outcome characteristics. Patients treated with curative surgery for squamous cell carcinoma (SCC) or adenocarcinoma (ACA) were included. RESULTS: United Kingdom, the Netherlands, France, Spain and Ireland participated. There were differences in data source ranging from national registries to large collaborative groups. 4668 oesophagogastric cancer cases over a 12 months period were included. The predominant histological type was ACA. Disease stage tended to be earlier in France and Ireland. In oesophageal and junctional cancers neoadjuvant chemoradiotherapy was preferred in the Netherlands and Ireland contrasting with chemotherapy in the UK and France. All countries used perioperative chemotherapy in gastric cancer but 1/3 of patients received this treatment. The mean R0 resection rate was 86% for oesophageal and junctional resections and 88% for gastric resections. Postoperative mortality varied from 1% to 7%. CONCLUSION: This European survey shown that implementing a uniform treatment and outcome data format of oesophagogastric cancer is feasible. It identified differences in disease presentation, treatment approaches and outcome, which need to be investigated, especially by increasing the number of participating countries. Future comparisons will facilitate developments in treatment for the benefit of patient outcomes.


Asunto(s)
Neoplasias Esofágicas/mortalidad , Neoplasias Esofágicas/cirugía , Unión Esofagogástrica/cirugía , Sistema de Registros , Neoplasias Gástricas/mortalidad , Neoplasias Gástricas/cirugía , Adenocarcinoma/mortalidad , Adenocarcinoma/patología , Adenocarcinoma/cirugía , Adulto , Anciano , Carcinoma de Células Escamosas/mortalidad , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Estudios Transversales , Supervivencia sin Enfermedad , Neoplasias Esofágicas/patología , Esofagectomía/métodos , Esofagectomía/mortalidad , Unión Esofagogástrica/patología , Femenino , Francia , Gastrectomía/métodos , Gastrectomía/mortalidad , Humanos , Irlanda , Masculino , Persona de Mediana Edad , Países Bajos , Medición de Riesgo , España , Neoplasias Gástricas/patología , Análisis de Supervivencia , Reino Unido
9.
J Clin Pathol ; 48(2): 129-32, 1995 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-7745111

RESUMEN

AIMS--To investigate overexpression of the oncoprotein c-erbB-2 in the dysplasia/carcinoma sequence of Barrett's columnar-lined oesophagus (CLO). METHODS--Immunohistochemical staining was performed using the monoclonal antibody NCL-CB-11 on formalin fixed tissue from 31 cases of Barrett's carcinoma, 20 cases of cancer associated dysplastic CLO, seven cases of dysplastic CLO without cancer, and 20 cases of non-dysplastic CLO. Membranous staining was regarded as positive for c-erbB-2 overexpression; cytoplasmic staining was recorded separately as its significance is uncertain. RESULTS--Membranous c-erbB-2 overexpression was observed in eight of 31 (26%) carcinomas and in none of the cases of dysplastic CLO. Variable cytoplasmic staining was seen in four of 31 (13%) tumours and seven of 27 (26%) cases of dysplastic CLO. No staining was observed in non-dysplastic CLO. CONCLUSIONS--C-erbB-2 overexpression is a relatively late event in the development of some Barrett's carcinomas and is unlikely to be involved in the early stages of neoplastic transformation of CLO.


Asunto(s)
Adenocarcinoma/metabolismo , Esófago de Barrett/metabolismo , Neoplasias Esofágicas/metabolismo , Receptor ErbB-2/metabolismo , Anciano , Esófago de Barrett/patología , Membrana Celular/química , Citoplasma/química , Femenino , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Receptor ErbB-2/análisis
10.
Eur J Surg Oncol ; 25(4): 364-7, 1999 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-10419705

RESUMEN

AIMS: This study investigated amplification of the cyclin D1 and MDM-2 genes, and overexpression of the cyclin D1 gene product, in oesophageal carcinoma. METHODS: Paired tumour and normal DNA samples from 26 oesophageal adenocarcinomas and 19 squamous cell carcinomas were analysed by Southern blotting with specific DNA probes for cyclin D1 and MDM-2, and for a control gene (alpha-lactalbumin). The cyclin D1 and MDM-2 gene copy numbers were calculated for each tumour. Expression of the cyclin D1 gene was assessed by immunohistochemical analysis of its protein product. RESULTS: Cyclin D1 gene amplification (by a factor of between two and six) was identified in seven tumours (16%). MDM-2 gene amplification (by a factor of between two and 11) was identified in 10 tumours (22%). Overexpression of cyclin D1 protein was identified in eight tumours and was significantly associated with gene amplification (P=0.04; Fisher's exact test), and with early T stage (P=0.01; Fisher's exact test). CONCLUSIONS: Cyclin D1 and MDM-2 amplification and cyclin D1 overexpression occur, although infrequently, in the development of oesophageal carcinoma. Cyclin D1 overexpression may influence tumour behaviour, causing the disease to present at an earlier T stage. The mechanism for this effect is unclear, and warrants further investigation.


Asunto(s)
Adenocarcinoma/metabolismo , Carcinoma de Células Escamosas/metabolismo , Ciclina D1/metabolismo , Neoplasias Esofágicas/metabolismo , Amplificación de Genes , Proteínas de Neoplasias/metabolismo , Proteínas Nucleares , Proteínas Proto-Oncogénicas/metabolismo , Adenocarcinoma/genética , Southern Blotting , Carcinoma de Células Escamosas/genética , Ciclina D1/genética , Neoplasias Esofágicas/genética , Humanos , Inmunohistoquímica , Proteínas de Neoplasias/genética , Proteínas Proto-Oncogénicas/genética , Proteínas Proto-Oncogénicas c-mdm2 , Regulación hacia Arriba
11.
Eur J Surg Oncol ; 23(6): 513-7, 1997 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-9484921

RESUMEN

Human papillomavirus (HPV) has previously been identified in up to 67% of squamous cell carcinomas of the oesophagus. In particular, HPV types of 16 and 18 are believed to play an important role in neoplastic transformation, by means of their oncoproteins E6 and E7. Most of these studies, however, pertain to areas of high incidence of squamous cell carcinoma of the oesophagus (the Far East and South Africa). It is not known if HPV plays any role in the development of oesophageal squamous cell carcinoma in the UK, where the tumour is relatively uncommon. The polymerase chain reaction was used to examine frozen tissue from 22 oesophageal squamous cell carcinomas for the presence of specific DNA sequences from oncogenic strains of HPV. PCR products were further analysed by Southern blot hybridization. No HPV sequences were detected in any tumours. These results suggest that these types of HPV are not associated with oesophageal squamous cell carcinoma in this country. It is unlikely, therefore, that HPV plays a significant role in the pathogenesis of squamous cell carcinoma of the oesophagus in the UK.


Asunto(s)
Carcinoma de Células Escamosas/virología , Neoplasias Esofágicas/virología , Papillomaviridae , Infecciones por Papillomavirus/complicaciones , Infecciones Tumorales por Virus/complicaciones , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/metabolismo , Neoplasias Esofágicas/metabolismo , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Masculino , Persona de Mediana Edad , Infecciones por Papillomavirus/metabolismo , Infecciones por Papillomavirus/virología , Proteína p53 Supresora de Tumor/biosíntesis , Infecciones Tumorales por Virus/metabolismo , Infecciones Tumorales por Virus/virología , Regulación hacia Arriba
12.
Eur J Surg Oncol ; 24(1): 34-7, 1998 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9542513

RESUMEN

AIMS: Loss of cell cycle control is an important step in the development of human tumours. A number of tumour suppressor genes are involved in cell cycle control, including p16, p53 and Rb. The aim of this study was to seek evidence of deletions of these genes in oesophageal adenocarcinoma. METHODS: Paired (tumour and normal squamous epithelium) frozen tissue samples from 12 patients were analysed by polymerase chain reaction (PCR) for loss of heterozygosity (LoH) at five microsatellite marker sites (two each for p16 and Rb, one for p53). Aneuploid tumour cell populations were sorted by flow cytometry prior to PCR, to eliminate stromal cell contamination. RESULTS: Of the 12 tumours, 11 (92%) had LoH at one or more loci. LoH at the p53 locus occurred in nine of 12 tumours, at one or both p16 loci in seven of 11 tumours, and at one or both Rb loci in eight of 12 tumours. Five tumours had LoH at two tumour suppressor gene loci, and a further four tumours had LoH at loci for all three genes. CONCLUSIONS: Allelic deletions of p53, p16 and Rb are common in oesophageal adenocarcinoma, and may be important in the development of this disease.


Asunto(s)
Adenocarcinoma/genética , Neoplasias Esofágicas/genética , Eliminación de Gen , Genes Supresores de Tumor/genética , Alelos , Femenino , Citometría de Flujo , Genes de Retinoblastoma/genética , Genes p16/genética , Genes p53/genética , Heterocigoto , Humanos , Repeticiones de Microsatélite
13.
Eur J Surg Oncol ; 23(1): 24-9, 1997 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9066743

RESUMEN

Overexpression of the tumour suppressor gene product p53 is common in oesophageal adenocarcinoma. This may be due to gene mutation, but overexpression can also result from complexing between viral proteins and p53; a number of viruses are causally linked with malignancy. This study therefore investigated the prevalence in oesophageal adenocarcinoma of viruses whose gene products are capable of interacting with p53. Seventeen tumours and 17 normal oesophagi were screened for specific DNA sequences from human papilloma virus (HPV), Adenovirus type 12, Epstein-Barr Virus (EBV), and cytomegalovirus (CMV). Frozen sections were analysed by polymerase chain reaction, and results were confirmed by Southern blot hybridization. Overexpression of p53 was studied immunohistochemically. Overexpression of p53 was identified in 11 of 17 tumours. No viral sequences were detected for HPV, CMV, or Adenovirus in any tumour. EBV sequences were found in eight of 17 tumours, and eight of 17 negative controls. There is therefore no evidence of HPV 16, 18 and 33, Adenovirus 12 or CMV infection in oesophageal adenocarcinoma. EBV infection in the oesophagus is of doubtful significance, in view of the high incidence in the control population. Overexpression of p53 cannot be explained by complexing with common viral proteins, and must be related to other intracellular mechanisms.


Asunto(s)
Adenocarcinoma/química , Adenocarcinoma/virología , ADN Viral/análisis , Neoplasias Esofágicas/química , Neoplasias Esofágicas/virología , Proteína p53 Supresora de Tumor/análisis , Adenoviridae/genética , Anciano , Southern Blotting , Citomegalovirus/genética , Sondas de ADN , ADN de Neoplasias/análisis , Femenino , Regulación Neoplásica de la Expresión Génica , Herpesvirus Humano 4/genética , Humanos , Masculino , Papillomaviridae/genética , Reacción en Cadena de la Polimerasa , Regulación hacia Arriba
14.
Eur J Surg Oncol ; 23(1): 30-5, 1997 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9066744

RESUMEN

TNM staging of oesophageal cancer provides significant prognostic information but its clinical impact is limited as many patients present with advanced disease (i.e. T3N1). Additional prognostic markers may help separate those with 'good' and 'bad' prognosis tumours and so help with decisions such as selection for adjuvant therapy. p53 and c-erbB-2 overexpression may correlate with poor prognosis in oesophageal cancer, but this is uncertain. This study aimed to investigate the value of these biomarkers as prognostic indicators in resected oesophageal cancer. Two hundred and five oesophageal tumours (127 adenocarcinoma, 78 squamous) resected by a single surgeon between June 1979 and January 1991 were investigated for p53 and c-erbB-2 overexpression using DO-7 and CB-11 immunohistochemistry. Patient survival was analysed by Kaplan-Meir life tables. Median survival was 61 weeks (range: 5-747) and survival diminished significantly with increasing UICC stage (P < 0.0001). Sixty-eight per cent of squamous tumours and 66% of adenocarcinomas overexpressed p53 but there was no statistically significant correlation with prognosis. Twenty-six per cent of squamous tumours and 23% of adenocarcinomas overexpressed c-erbB-2, but again this did not correlate with survival. p53 and c-erbB-2 are commonly overexpressed in oesophageal cancer but do not appear to be related to prognosis in this large series of resected oesophageal cancers and other candidate biomarkers must be sought.


Asunto(s)
Adenocarcinoma/química , Carcinoma de Células Escamosas/química , Neoplasias Esofágicas/química , Receptor ErbB-2/análisis , Proteína p53 Supresora de Tumor/análisis , Adenocarcinoma/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/cirugía , Neoplasias Esofágicas/cirugía , Femenino , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Pronóstico , Análisis de Supervivencia
15.
Qual Health Care ; 1(3): 165-7, 1992 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-10136857

RESUMEN

OBJECTIVE: To assess the accuracy of outcome data on appendicectomy routinely collected as part of a surgical audit and to investigate outcome in the non-audited period after discharge. DESIGN: Retrospective analysis of audit data recorded by the Medical Data Index (MDI) computer system for all patients undergoing emergency appendicectomy in one year; subsequent analysis of their hospital notes and notes held by their general practitioners for patients identified by a questionnaire who had consulted their general practitioner for a wound complication. SETTING: One district general hospital with four consultant general surgeons serving a population of 250,000. PATIENTS: 230 patients undergoing emergency appendicectomy during 1989. MAIN MEASURES: Comparison of postoperative complications recorded in hospital notes with those recorded by the MDI system and with those recorded by patients' general practitioners after discharge. RESULTS: Of the 230 patients, 29 (13%) had a postoperative complication recorded in their hospital notes, but only 14 (6%) patients had these recorded by the MDI system. 189 (82%) of the patients completed the outcome questionnaire after discharge. The number of wound infections as recorded by the MDI system, the hospital notes, and notes held by targeted patients' general practitioners were three (1%), eight (3%), and 18 (8%) respectively. None of 12 readmissions with complications identified by the hospital notes were identified by the MDI system. CONCLUSIONS: Accurate audit of postoperative complications must be extended to the period after discharge. Computerised audit systems must be able to relate readmissions to specific previous admissions.


Asunto(s)
Apendicectomía/normas , Auditoría Médica/estadística & datos numéricos , Servicio de Cirugía en Hospital/normas , Resultado del Tratamiento , Apendicectomía/efectos adversos , Episodio de Atención , Hospitales de Distrito/normas , Hospitales Generales/normas , Humanos , Alta del Paciente/estadística & datos numéricos , Readmisión del Paciente/estadística & datos numéricos , Complicaciones Posoperatorias/epidemiología , Estudios Retrospectivos , Reino Unido/epidemiología
16.
J Laparoendosc Adv Surg Tech A ; 9(5): 439-40, 1999 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-10522542

RESUMEN

A laparoscopic splenectomy during pregnancy is described in this case report. The operation took place at 18 weeks' gestation for life-threatening thrombocytopaenia secondary to antiphospholipid syndrome that had failed to respond to medical therapy. The patient made a full and rapid recovery and was delivered of a healthy baby girl at term.


Asunto(s)
Laparoscopía , Complicaciones Hematológicas del Embarazo/cirugía , Esplenectomía , Trombocitopenia/cirugía , Adulto , Síndrome Antifosfolípido/complicaciones , Femenino , Humanos , Recién Nacido , Embarazo , Trombocitopenia/etiología
17.
Ann R Coll Surg Engl ; 76(3): 185-7, 1994 May.
Artículo en Inglés | MEDLINE | ID: mdl-8017813

RESUMEN

Despite careful technique, a proportion of patients undergoing rubber band ligation (RBL) of haemorrhoids will experience pain or discomfort. To investigate this, a group of 52 unselected patients presenting to the surgical outpatient clinic of Bristol Royal Infirmary were entered into a prospective study using questionnaires, of which 50 (96%) replied. Pain and discomfort were scored on a 10 cm visual analogue scale. Of these patients, 42 (84%) reported pain in the first 24 h; this was moderate to severe in 9 (18%); 30 (60%) had pain in the second 24 h, with 7 (14%) patients suffering moderate to severe pain. In all, 14 (28%) patients were unable to perform their normal activities on the day of treatment and a further 14 (28%) patients felt faint immediately after RBL. The results of this study indicate that pain after RBL occurs more often than previously recognised. It is suggested that informed consent be obtained before RBL and that patients should be given the opportunity to delay treatment if they so wish.


Asunto(s)
Procedimientos Quirúrgicos Ambulatorios , Hemorroides/cirugía , Actividades Cotidianas , Femenino , Humanos , Ligadura/efectos adversos , Ligadura/métodos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Dolor Postoperatorio , Estudios Prospectivos , Síncope , Factores de Tiempo
18.
Ann R Coll Surg Engl ; 79(1): 46-8, 1997 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-9038495

RESUMEN

All deaths occurring in 1 year in the surgical unit of a district general hospital were analysed to determine to what extent crude mortality rates reflect the quality of care. There were 166 deaths, 70% of patients were aged 75 years and older, and 87.3% were emergency admissions. Almost one-half (46.4%) of the deaths were inevitable. This high proportion of inevitable deaths means that crude hospital mortality rates are a poor indicator of the quality of surgical care. Factors such as the nature of the catchment area served, the proportion of emergency versus elective admissions, the numbers of complex operations performed and the availability of convalescent or hospice facilities are a greater influence on surgical mortality rates than variations in the standard of surgical care. The use of crude hospital mortality rates to compare the quality of care given by surgical units should be discontinued as it is unreliable and misleading.


Asunto(s)
Mortalidad Hospitalaria , Calidad de la Atención de Salud , Servicio de Cirugía en Hospital/normas , Procedimientos Quirúrgicos Operativos/mortalidad , Adulto , Anciano , Anciano de 80 o más Años , Causas de Muerte , Procedimientos Quirúrgicos Electivos/mortalidad , Urgencias Médicas , Inglaterra/epidemiología , Hospitales de Distrito , Hospitales Generales , Humanos , Persona de Mediana Edad , Servicio de Cirugía en Hospital/estadística & datos numéricos , Procedimientos Quirúrgicos Operativos/normas
19.
Ann R Coll Surg Engl ; 82(1): 24-6, 2000 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-10700762

RESUMEN

Abscesses after appendicitis occur in some patients despite timely surgery and antibiotics. The Streptococcus milleri group of bacteria are commonly associated with gastrointestinal abscesses. This study investigated the relationship between S. milleri and abscess formation after appendicectomy a total of 301 patients (172 males, 129 females, median age 22 years) with appendicitis were identified retrospectively from the hospital PAS computer system who had an appendicectomy and peritoneal bacteriology swabs taken. All but one patient had prophylactic antibiotics. Patients were divided into three groups according to peritoneal bacteriology: group 1 (S. milleri +/- mixed faecal organisms, n = 61); group 2 (mixed faecal organisms, n = 126); and group 3 (sterile, n = 114). The chi squared and Student t-tests were used for statistical analysis. Thirteen (21%) of group 1 patients developed an intra-abdominal abscess compared with 4 (3%) in group 2 and 2 (1.7%) in group 3 (P < 0.0001). There was no difference in the prevalence of gangrenous or perforated appendicitis between groups 1 and 2 (56% versus 52%) but these worse forms of appendicitis were less common in group 3 (22%). Group 1 patients had a mean total hospital stay of 10 days versus 6 days for group 2 and 4 days for group 3 (P < 0.001). S. milleri was associated with a 7-fold increase in abscess formation after appendicectomy and a longer hospital stay. Antibiotic prophylaxis did not prevent this complication.


Asunto(s)
Absceso Abdominal/microbiología , Apendicitis/complicaciones , Complicaciones Posoperatorias/microbiología , Infecciones Estreptocócicas/microbiología , Adolescente , Adulto , Profilaxis Antibiótica , Apendicectomía , Apendicitis/cirugía , Niño , Femenino , Humanos , Tiempo de Internación , Masculino , Estudios Retrospectivos
20.
Eur J Surg Oncol ; 40(3): 325-9, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24412054

RESUMEN

AIMS: Seven countries (Denmark, France, Ireland, the Netherlands, Poland, Sweden, United Kingdom) collaborated to initiate a EURECCA (European Registration of Cancer Care) Upper GI project. The aim of this study was to identify a core dataset of shared items in the different data registries which can be used for future collaboration between countries. METHODS: Item lists from all participating Upper GI cancer registries were collected. Items were scored 'present' when included in the registry, or when the items could be deducted from other items in the registry. The definition of a common item was that it was present in at least six of the seven participating countries. RESULTS: The number of registered items varied between 40 (Poland) and 650 (Ireland). Among the 46 shared items were data on patient characteristics, staging and diagnostics, neoadjuvant treatment, surgery, postoperative course, pathology, and adjuvant treatment. Information on non-surgical treatment was available in only 4 registries. CONCLUSIONS: A list of 46 shared items from seven participating Upper GI cancer registries was created, providing a basis for future quality assurance and research in Upper GI cancer treatment on a European level.


Asunto(s)
Neoplasias Esofágicas/cirugía , Unión Esofagogástrica/cirugía , Auditoría Médica , Garantía de la Calidad de Atención de Salud , Sistema de Registros/normas , Neoplasias Gástricas/cirugía , Bases de Datos como Asunto , Dinamarca , Neoplasias Esofágicas/mortalidad , Neoplasias Esofágicas/patología , Unión Esofagogástrica/patología , Unión Europea , Femenino , Francia , Humanos , Cooperación Internacional , Masculino , Países Bajos , Polonia , Neoplasias Gástricas/mortalidad , Neoplasias Gástricas/patología , Suecia , Reino Unido
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