Abstract:
BACKGROUND AND AIMS:The lower esophageal sphincter (LES) in patients with gastroesophageal reflux disease often has a low resting pressure and a short abdominal length. The mechanism by which this occurs is unknown. We hypothesize that gastric distension causes progressive effacement of the abdominal portion of the LES, exposing it to acid injury resulting in mucosal and sphincter damage. Our aim was to assess in normal subjects the effect of gastric distension on the LES length and pressure and its exposure to acid gastric juice. METHODS:Eleven asymptomatic volunteers had their LES length and pressure measured before and during gastric distension. The location of the pH step-up point (shift from gastric pH to a pH >4) was also measured before and after distension. RESULTS:Progressive gastric distension with air resulted in progressive shortening of LES (R = 0.89, P < 0.0001). After infusion of 750 cc of air there was a significant reduction in the median LES length from 4 to 2.6 cm (P = 0.001). This change occurred in the abdominal length of the LES (2.6-1.4 cm [P = 0.001]) and not in the thoracic length. At rest the pH step-up point was 0.5 cm above the lower border of the LES and with distension moved a median of 1 cm cephalad within the LES. Simultaneously with the loss of length there was a reduction in LES pressure (27.4-23.4 mm Hg, P = 0.02). CONCLUSIONS:Gastric distension causes progressive shortening of the abdominal length of the LES and a reduction in its pressure. The process exposes the effaced mucosa and sphincter to acid gastric juice.
journal_name
Ann Surgjournal_title
Annals of surgeryauthors
Ayazi S,Tamhankar A,DeMeester SR,Zehetner J,Wu C,Lipham JC,Hagen JA,DeMeester TRdoi
10.1097/SLA.0b013e3181e3e411subject
Has Abstractpub_date
2010-07-01 00:00:00pages
57-62issue
1eissn
0003-4932issn
1528-1140journal_volume
252pub_type
杂志文章abstract:OBJECTIVE:The authors determined whether caloric restriction (CR) either acutely or chronically, alters heat shock protein 70 (hsp70) gene expression in the gut. SUMMARY BACKGROUND DATA:Caloric restriction prolongs the life span and delays age-related disease (e.g., cancer) in mammals; the mechanisms responsible for t...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199605000-00015
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVE:To determine whether the immune system limits or improves the therapeutic efficacy of an adenovirus vector expressing the herpes simplex thymidine kinase (HSVtk) gene in a subcutaneous tumor model. BACKGROUND DATA:Enhanced immune reactions against tumors may be therapeutically useful. However, recent studies...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199509000-00008
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVES:To assess survival after liver resection and transplantation in patients with hepatocellular carcinoma (HCC) beyond Milan criteria. BACKGROUND:The role of liver resection and transplantation remains controversial for patients with HCC beyond Milan criteria. Resection of advanced tumors and transplantation u...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001866
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVES:The aims of this study were to: (1) measure the rate of failure to provide defect-free postoperative venous thromboembolism (VTE) chemoprophylaxis, (2) identify reasons for failure to provide defect-free VTE chemoprophylaxis, and (3) examine patient- and hospital-level factors associated with failure. SUMMA...
journal_title:Annals of surgery
pub_type: 杂志文章,多中心研究
doi:10.1097/SLA.0000000000003124
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVE:This study investigated the pathogenesis of water and sodium metabolism derangements in obstructive jaundice. SUMMARY BACKGROUND DATA:Obstructive jaundice is associated with hypodipsia, depletion of extracellular water, alterations of the water and sodium regulating hormones, and an increased incidence of re...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199401000-00012
更新日期:1994-01-01 00:00:00
abstract::Ventral anomalies of accessory pulmonary tissue have been classified as "bronchopulmonary foregut malformations." Between July 1, 1981, and May 31, 1985, 10 children with bronchopulmonary malformations have been cared for on the Pediatric Surgical Service at the University of Virginia. Six patients had bronchogenic cy...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198605000-00011
更新日期:1986-05-01 00:00:00
abstract::Patients recovering from acute respiratory insufficiency are usually not extubated until they can ventilate adequately while breathing spontaneously at ambient end-expiratory pressure (T-tube). It is hypothesized that this period of T-tube breathing might be detrimental to gas exchange since the endotracheal tube abol...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198005000-00004
更新日期:1980-05-01 00:00:00
abstract:OBJECTIVE:To assess clinical and surgical factors affecting local recurrence and survival in young breast cancer patients in the Prospective study of Outcomes in Sporadic versus Hereditary breast cancer (POSH). BACKGROUND:Emerging data suggest young age is a predictor of increased local recurrence. METHODS:POSH is a ...
journal_title:Annals of surgery
pub_type: 杂志文章,多中心研究
doi:10.1097/SLA.0000000000001930
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVES:Although weight loss following Roux-en-Y gastric bypass is acceptable in patients with preoperative body mass index (BMI) between 35 and 50 kg/m, results from several series demonstrate that failure rates approach 40% when BMI is > or =50 kg/m. Here we report the first large single institution series directl...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/01.sla.0000239086.30518.2a
更新日期:2006-10-01 00:00:00
abstract::The pattern of failure was studied in 1012 patients with resected Stage I or II non-small-cell carcinoma of the lung. Initial intrathoracic failure (41%) was more common than initial extrathoracic failure (34%) even though a complete resection was the intent in all patients. The most frequent sites of initial failure ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198701000-00012
更新日期:1987-01-01 00:00:00
abstract:OBJECTIVE:To assess the relevance of resection margin status for survival outcome after resection and adjuvant therapy for pancreatic cancer. BACKGROUND:The definitions for R0 and R1 margin status after resection for pancreatic cancer are controversial. The strict definition of R0 requiring a 1 mm tumor-free margin is...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001731
更新日期:2017-03-01 00:00:00
abstract::Twenty-one children from the ages of 4 to 12 years old were treated for esophageal hemorrhage by distal splenorenal shunt (DSS). In four patients, thrombosis of the shunt occurred within the first 24 hours after operation. In the other 17 children, long-term shunt patency was verified. Only one thrombosis has occurred...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198204000-00004
更新日期:1982-04-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to characterize the patterns of first recurrence after curative-intent resection for pancreatic adenocarcinoma (PDAC). SUMMARY BACKGROUND DATA:We evaluated the first site of recurrence after neoadjuvant treatment as locoregional (LR) or distant metastasis (DM). To validate our...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000004585
更新日期:2020-10-19 00:00:00
abstract:BACKGROUND:Chest computed tomography (CT) screening of patients with blunt trauma for thoracic aortic injury is controversial. This study was undertaken to determine whether CT could exclude aortic injury and be used to select patients for aortography. METHODS:Computed tomography and aortography were used to evaluate ...
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章
doi:10.1097/00000658-199411000-00015
更新日期:1994-11-01 00:00:00
abstract::In construction of the eosphagojejunostomy after total gastrectomy, the EEA stapled (US Surgical Corporation, Norwalk, CT) and the two-layer interrupted 3-0 Dexon anastomoses are compared concerning the radiological appearance, breaking strength, circulation, and collagen concentration. Thirty female pigs were used. A...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198604000-00017
更新日期:1986-04-01 00:00:00
abstract:OBJECTIVE:To study the influence of esophageal cancer surgeon volume upon mortality from upper gastrointestinal emergencies. BACKGROUND:Volume-outcome relationships led to the centralization of esophageal cancer surgery. METHODS:Hospital Episode Statistics data were used to identify patients admitted to hospitals wit...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000002387
更新日期:2017-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the association between anesthetic management before and after graft reperfusion and early graft regeneration in living donor liver transplantation (LDLT). BACKGROUND:Sufficient graft regeneration is essential for the success of LDLT. Diverse signals start to trigger liver regeneration immediatel...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001526
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVE:To describe hospital-level variation in roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) in Michigan. BACKGROUND:Bariatric surgery is an increasingly prevalent elective surgical procedure that will likely be considered for future bundled payment programs, both public and private. Past research in ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000002462
更新日期:2018-12-01 00:00:00
abstract::A study was done of 144 patients undergoing Billroth I partial gastrectomy for benign gastric ulcer. At a mean follow-up of 9.4 years, 95 patients were alive. Of 79 patients reviewed, 84% had an excellent or good result on clinical (Visick) grading. Five cases of proven recurrent ulceration were found; two of these pa...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198202000-00012
更新日期:1982-02-01 00:00:00
abstract::During the 5-year period from January 1978 through December 1982, 196 patients with blunt trauma to the small bowel, colon, or mesentery were treated at the Maryland Institute for Emergency Medical Services Systems (MIEMSS) Shock Trauma Center. More than 80% of these patients were the victims of motor vehicle accident...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198502000-00011
更新日期:1985-02-01 00:00:00
abstract::The purpose of this report is to review the results of mitral valve replacement since a first report in the Annals of Surgery in 1961, in order to determine the relative importance of new valve designs versus other surgical variables. The continued use of the silastic ball valve in its 1966 configuration (Model 6120),...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198509000-00016
更新日期:1985-09-01 00:00:00
abstract:OBJECTIVE:To compare surgical versus medical treatment of type 2 diabetes mellitus (T2DM) remission and comorbidities in patients with a body mass index (BMI) less than 35 kg/m2. BACKGROUND:Obesity surgery can achieve remission of T2DM and its comorbidities. Metabolic surgery has been proposed as a treatment option fo...
journal_title:Annals of surgery
pub_type: 杂志文章,meta分析,评审
doi:10.1097/SLA.0000000000001014
更新日期:2015-03-01 00:00:00
abstract::Extracorporeal Membrane Oxygenation (ECMO) has been available to neonates with respiratory failure at the University of Michigan School of Medicine since June 1981. In order to evaluate the impact of this type of pulmonary support, a retrospective analysis of 50 neonates with posterolateral congenital diaphragmatic he...
journal_title:Annals of surgery
pub_type: 杂志文章,评审
doi:10.1097/00000658-198902000-00014
更新日期:1989-02-01 00:00:00
abstract:OBJECTIVE:To construct and validate a scoring system for evidence-based selection of bariatric and metabolic surgery procedures according to severity of type 2 diabetes (T2DM). BACKGROUND:Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) account for >95% of bariatric procedures in United States in patients w...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000002407
更新日期:2017-10-01 00:00:00
abstract::Release from platelets of a factor mitogenic for smooth muscle cells is a postulated mechanism for the pathogenesis of vascular intimal hyperplasia. In this study the effect of antiplatelet therapy was evaluated. Aspirin (165 mg twice daily) and dipyridamole (25 mg twice daily) were administered to six rhesus monkeys ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198002000-00018
更新日期:1980-02-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine the association between gabapentinoids on the day of surgery and adverse postoperative outcomes in patients undergoing colorectal surgery in the United States. BACKGROUND:Gabapentinoids, gabapentin and pregabalin, are recommended in multimodal analgesia protocols for ac...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000003317
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVES:Because neural invasion (NI) is still inconsistently reported and not well characterized within gastrointestinal malignancies (GIMs), our aim was to determine the exact prevalence and severity of NI and to elucidate the true impact of NI on patient's prognosis. BACKGROUND:The union internationale contre le ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000000968
更新日期:2014-11-01 00:00:00
abstract::Twelve patients with anal incontinence due to neurologic disease or failure of previous incontinence surgery underwent implantation of an artificial anal sphincter. The system used was a modification of the AMS 800 artificial urinary sphincter. In two patients, infection necessitated removal of the system, and in four...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199204000-00013
更新日期:1992-04-01 00:00:00
abstract:OBJECTIVE:To determine long-term survival after pancreatoduodenectomy for pancreatic ductal adenocarcinoma and to identify clinical factors associated with long-term survival. SUMMARY BACKGROUND DATA:The prognosis for long-term survival even after potentially curative resection for pancreatic adenocarcinoma is thought...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3181613142
更新日期:2008-03-01 00:00:00
abstract::A prospective study was performed on 358 patients to examine the diagnosis, management, and natural history of fish bone ingestion. All patients admitted with the complaint had a thorough oral examination. Flexible endoscopy under local pharyngeal anesthesia would be performed on patients with negative findings. Of 11...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199004000-00012
更新日期:1990-04-01 00:00:00