Abstract:
:Diminished poststenotic pressure and flow accompanied experimental application of multiple subcritical arterial stenoses in series. Effects of additional stenoses, causing equivalent constrictions, were cumulative in a nonlinear fashion. Seven-hundred-twenty measurements were performed using 10 cm ileofemoral canine arterial segments in vitro and in vivo with pulsatile and nonpulsatile blood flow. Pressures and flow volumes utilized for testing were within normal physiologic ranges. Data analysis included correlations of experimental observations with predictions generated from a theoretic hydraulic model. Kinetic energy losses with multiple subcritical stenoses were associated with decreased pressure and flow. Poststenotic pressure decreased as much as 51% in some experiments. Diminutions in flow paralleled pressure changes. Measured pressure changes were nonlinear and followed mathematic predictions of appreciable but lesser effects of added stenoses. Hemodynamic alterations of magnitudes documented in this study assume clinical importance. The assumption that a solitary critical stenosis must exist before significant hemodynamic changes occur is no longer tenable.
journal_name
Ann Surgjournal_title
Annals of surgeryauthors
Flanigan DP,Tullis JP,Streeter VL,Whitehouse WM Jr,Fry WJ,Stanley JCdoi
10.1097/00000658-197711000-00020subject
Has Abstractpub_date
1977-11-01 00:00:00pages
663-8issue
5eissn
0003-4932issn
1528-1140journal_volume
186pub_type
杂志文章abstract::This prospective study describes the current prognosis of patients in acute Organ System Failure (OSF). Objective definitions were developed for five OSFs, and then 5677 ICU admissions from 13 hospitals were monitored. The number and duration of OSF were linked to outcome at hospital discharge for each of the 2719 ICU...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198512000-00004
更新日期:1985-12-01 00:00:00
abstract:BACKGROUND:The advice to individuals with identified CDH1 mutations is generally to undertake prophylactic total gastrectomy (PTG). This study evaluated the effect of PTG on health-related quality of life (HRQL) in asymptomatic individuals with identified CDH1 mutations at high risk for gastric cancer. METHODS:Individ...
journal_title:Annals of surgery
pub_type: 杂志文章,多中心研究
doi:10.1097/SLA.0000000000000446
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to examine the ability of Focused Assessment Using Sonography for Trauma (FAST) to discriminate between survivors and nonsurvivors undergoing resuscitative thoracotomy (RT). BACKGROUND:RT is a high-risk, low-salvage procedure performed in arresting trauma patients with poorly ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001421
更新日期:2015-09-01 00:00:00
abstract::An experience with 69 patients who underwent 72 common bile duct reoperations for retained or recurrent choledocholithiasis is presented. The mean age of the patients was 57 years, and 35 patients had associated conditions. In this series six patients (8.3%) had minor complications and no patient developed major compl...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198102000-00004
更新日期:1981-02-01 00:00:00
abstract::Despite recommended preoperative preparation with alpha-adrenergic blockers, severe hemodynamic instability may occur during operations to resect pheochromocytoma. We combined the alpha-blocker phenoxybenzamine with the tyrosine hydroxylase inhibitor metyrosine in an attempt to better manage the hypertension of patien...
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章
doi:10.1097/00000658-199011000-00010
更新日期:1990-11-01 00:00:00
abstract::The peripheral nitrogen wasting and loss of functional capacity caused by the malnutrition of disease and the immobilization of hospitalization may not be readily reversed by refeeding alone. In order to examine submaximal exercise as an adjunctive anabolic stimulus to intravenous refeeding (IVF) in depleted subjects,...
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000658-198803000-00012
更新日期:1988-03-01 00:00:00
abstract:OBJECTIVE:Our goal was to describe contemporary management and in-hospital mortality associated with blunt thoracic aortic intimal tears (IT) within the American College of Surgeons Trauma Quality Improvement Program. SUMMARY BACKGROUND DATA:The evidence basis for nonoperative expectant management of traumatic IT of t...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000004415
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVE:Comparative effectiveness research has mostly been focused on comparison of treatment techniques. The goal of the present study was to extend the research to physician specialty. BACKGROUND:Both surgeons and interventionalists (cardiologists and radiologists) are involved in endovascular repairs (EVAR) of ao...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3182a196b5
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Despite antiviral treatment has been shown to reduce hepatocellular carcinoma (HCC) recurrence after curative treatment for hepatitis B virus (HBV)-related HCC in patients with high preoperative HBV-DNA levels, it is still unclear whether antiviral therapy is useful in reducing recurrence in patients with lo...
journal_title:Annals of surgery
pub_type: 杂志文章,随机对照试验
doi:10.1097/SLA.0000000000002727
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:Using a prospective randomized study to assess postoperative morbidity and pancreatic function after pancreaticoduodenectomy with pancreaticojejunostomy and duct occlusion without pancreaticojejunostomy. SUMMARY BACKGROUND DATA:Postoperative complications after pancreaticoduodenectomy are largely due to leak...
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000658-200210000-00004
更新日期:2002-10-01 00:00:00
abstract:OBJECTIVE:To assess what proportion of surgical malpractice claims might be prevented by the use of a surgical safety checklist. BACKGROUND:Surgical disciplines are overrepresented in the distribution of adverse events. The recently described multidisciplinary SURgical PAtient Safety System (SURPASS) checklist covers ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3182068880
更新日期:2011-03-01 00:00:00
abstract:OBJECTIVE:Comparison of minimal access retroperitoneal pancreatic necrosectomy (MARPN) versus open necrosectomy in the treatment of infected or nonresolving pancreatic necrosis. SUMMARY OF BACKGROUND DATA:Infected pancreatic necrosis may lead to progressive organ failure and death. Minimal access techniques have been ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3181d96c53
更新日期:2010-05-01 00:00:00
abstract:OBJECTIVE:Our objective was to evaluate the safety and durability of biologic mesh for single-staged reconstruction of contaminated fields. INTRODUCTION:The presence of contamination during ventral hernia repair (VHR) poses a significant challenge. Some advocate for a multistaged reconstructive approach with delayed d...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3182849871
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVE:To assess the feasibility of developing a simulated ward environment in which to assess the ward-based care of surgical patients by clinicians of varying levels of experience (construct validation). BACKGROUND:Increasing evidence points to the importance of the postoperative or ward-based phase of surgical c...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e318288e1d4
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVE:The authors determined whether a recombinant herpes simplex virus (HSV) vector could destroy human colon carcinoma cells in vitro and whether the vector would selectively replicate in colon carcinoma liver metastases but not surrounding hepatocytes in vivo. BACKGROUND:The HSV vector hrR3 is defective in the ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199609000-00008
更新日期:1996-09-01 00:00:00
abstract:OBJECTIVE AND BACKGROUND:Our objective was to determine the fetal in vivo microRNA signature in hypoplastic lungs of human fetuses with severe isolated congenital diaphragmatic hernia (CDH) and changes in tracheal and amniotic fluid of fetuses undergoing fetoscopic endoluminal tracheal occlusion (FETO) to reverse sever...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001054
更新日期:2015-12-01 00:00:00
abstract::The proportion of the population of the U.S. 65 years of age and over is increasing. Biliary tract disease is estimated to involve 15% of the adult population. A review of 12,200 patients treated surgically at one medical center reveals that 2401 (20%) had acute cholecystitis. There were 93 deaths, for a mortality rat...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198101000-00009
更新日期:1981-01-01 00:00:00
abstract::This study was conducted to elucidate plasma cholecystokinin (CCK) and pancreatic polypeptide (PP) response after pancreatoduodenectomy and to compare response of CCK and PP in patients who had pancreatoduodenectomy with Billroth I and Billroth II type of reconstruction. Basal levels of plasma CCK were significantly l...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198708000-00006
更新日期:1987-08-01 00:00:00
abstract:OBJECTIVE:To establish criteria for venous reconstruction of middle hepatic vein (MHV) tributaries of the right liver graft in adult-to-adult living donor liver transplantation (LDLT). SUMMARY BACKGROUND DATA:In adult LDLT using the right hemiliver, the MHV is usually separated from the graft, which results in potenti...
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章
doi:10.1097/00000658-200208000-00013
更新日期:2002-08-01 00:00:00
abstract:OBJECTIVE:To determine the disease-free survival (DFS) and recurrence after the treatment of patients with rectal cancer with open (OPEN) or laparoscopic (LAP) resection. BACKGROUND:This randomized clinical trial (ACOSOG [Alliance] Z6051), performed between 2008 and 2013, compared LAP and OPEN resection of stage II/II...
journal_title:Annals of surgery
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/SLA.0000000000003002
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:To determine the survival curves for laparoscopic resection (LR) of colorectal cancer. SUMMARY BACKGROUND DATA:Laparoscopic resection for cure of colorectal cancer is controversial, and survival curves have not been determined. METHODS:A prospective database of 177 consecutive LRs of colorectal cancers perf...
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章
doi:10.1097/00000658-199904000-00006
更新日期:1999-04-01 00:00:00
abstract:OBJECTIVE:The effects of total parenteral nutrition (TPN) administration on pulmonary macrophage function and host response to gram-negative pulmonary infection were evaluated. SUMMARY BACKGROUND DATA:Administration of TPN resulted in increased infectious complications in traumatized and perioperative patients, but un...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199403000-00009
更新日期:1994-03-01 00:00:00
abstract:OBJECTIVES:We examined the influence of surgeon age and other factors on proficiency in laparoscopic or open hernia repair. SUMMARY BACKGROUND DATA:In a multicenter, randomized trial comparing open and laparoscopic herniorrhaphies, conducted in Veterans Administration hospitals (CSP 456), we reported significant diffe...
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1097/01.sla.0000179644.02187.ea
更新日期:2005-09-01 00:00:00
abstract:BACKGROUND:Postcholecystectomy complex bile duct injuries involving the hilar confluence, which are often associated with vascular injuries and liver atrophy, remain a considerable surgical challenge. The aim of this study is to report our experience of major hepatectomy with long-term outcome in these patients. METHO...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e31817b65f2
更新日期:2008-07-01 00:00:00
abstract:OBJECTIVE:To investigate the role of recombinant bactericidal/permeability-increasing protein (rBPI21) in the attenuation of the sepsis syndrome and acute lung injury associated with lower limb ischemia-reperfusion (I/R) injury. SUMMARY BACKGROUND DATA:Gut-derived endotoxin has been implicated in the conversion of the...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-200108000-00014
更新日期:2001-08-01 00:00:00
abstract::Two types of 4 mm ID prostheses were studied in the carotid arteries of the dog. These were noncrimped polypropylene-supported filamentous velour knitted Dacron (PPSFV) and expanded polytetrafluoroethylene (e-PTFE, Gore-Tex). Thrombus-"Free" Surface TFS) areas and patency rates were determined at the end of the implan...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198003000-00016
更新日期:1980-03-01 00:00:00
abstract:OBJECTIVE:Create and validate diverticulitis surgical site infection prediction scale. BACKGROUND:Surgical site infections cause significant morbidity after colorectal surgery. An infection prediction scale could target infection prevention bundles to high-risk patients. METHODS:Prospectively collected National Surgi...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000002859
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVE:The aim of the present trial was to ascertain whether laparoscopic cholecystectomy (LCC) can prevent recurrent attacks of idiopathic acute pancreatitis (IAP). SUMMARY:Up to 50% to 75% of IAP may be due to microlithiasis, which is undetectable by conventional imaging methods. METHODS:This randomized, prospec...
journal_title:Annals of surgery
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/SLA.0000000000001469
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the diagnostic potential of smooth muscle protein of 22 kDa (SM22) as plasma biomarker for the detection of transmural intestinal ischemia. BACKGROUND:Acute mesenteric ischemia is an abdominal emergency requiring rapid diagnosis and treatment. Especially, detection of transmural damage is imperat...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000002278
更新日期:2018-07-01 00:00:00
abstract::During the years 1954 through 1964, 259 individuals with primary malignant melanoma had an elective node dissection. Microscopic metastases were found in 15% of these patients. The presence of only a microscopic focus of involvement gave a 10-year cure rate of 67%; metastasis larger than a microscopic focus in a singl...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-197707000-00014
更新日期:1977-07-01 00:00:00