Abstract:
OBJECTIVE:The aim of this study was to perform an external validation of 2 institutionally derived predictive models of laparoscopic conversion in colorectal surgery using the Mayo Clinic, Rochester (MCR) laparoscopic colon and rectal surgery experience. SUMMARY OF BACKGROUND DATA:Two different predictive scoring systems of conversion in laparoscopic colorectal surgery were developed and published based upon single institution experiences. Neither model was validated on an independent data set. Thus, the utility of these models outside of their respective institutions is unknown. METHODS:A prospectively collected data set of 998 laparoscopic colorectal procedures from MCR was analyzed. All patient-, procedure-, and surgeon-related factors used in both models were present in our data set. Logistic regression was used to evaluate their ability to predict conversion in our cohort. Model effectiveness was assessed by area under the curve from the logistic regression model, 95% confidence intervals for the observed number of conversions, and a goodness-of-fit test to compare the observed number of conversions with the predicted conversion rates for each score. RESULTS:The cohort mean age of 552 women was 53, with a median body mass index of 25.2 kg/m. There were 382 right-sided, 251 left-sided, 46 rectal resections, and 151 proctocolectomies. Major diagnoses were inflammatory bowel disease 34%, cancer 18%, polyps 17%, and diverticular disease 13%. The overall MCR conversion rate was 15%. Several variables from the models were statistically significant predictors of conversion in our data set. However, both models performed similarly with an area under the curve of 0.62, suggesting that these models are of limited predictive value in our independent cohort with a performance closer to chance. The numbers of actual conversions were significantly different from the predicted number for both scoring systems. CONCLUSION:Patient and clinical factors associated with laparoscopic conversion in colorectal surgery may be institution dependent. This finding cautions surgeons on the applicability of institution-based surgical predictive models. Independent data set validation is recommended before surgical predictive models are applied to general clinical practice.
journal_name
Ann Surgjournal_title
Annals of surgeryauthors
Cima RR,Hassan I,Poola VP,Larson DW,Dozois EJ,Larson DR,O'Byrne MM,Huebner Mdoi
10.1097/SLA.0b013e3181d355f7subject
Has Abstractpub_date
2010-04-01 00:00:00pages
652-8issue
4eissn
0003-4932issn
1528-1140journal_volume
251pub_type
杂志文章abstract::The development of effective, non-toxic (local and systemic) methods for the rapid chemical (enzymatic and non-enzymatic) debridement of third degree burns would dramatically reduce the morbidity and mortality of severely burned patients. Sepsis is still the major cause of death of patients with extensive deep burns. ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-197410000-00032
更新日期:1974-10-01 00:00:00
abstract:OBJECTIVE:This study determined whether there are any laboratory or other features that will enable prediction of spontaneous closure in patients with gastrointestinal cutaneous fistulas. SUMMARY BACKGROUND DATA:Although the anatomic criteria for spontaneous closure of gastrointestinal cutaneous fistulas have been pre...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199306000-00003
更新日期:1993-06-01 00:00:00
abstract::This study explores whether fetal allograft survival is age dependent and organ specific. Fetal rat tissue (renal, gonadal, hepatic) from the third trimester of gestation (days 15-21) was transplanted into 306 outbred adult rats for 10-30 days. Grafts were studied by morphometric and histologic analysis. Ten days afte...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198610000-00008
更新日期:1986-10-01 00:00:00
abstract:BACKGROUND:Surgery is the criterion standard for the treatment of severe burns and of late sequels after ingestion of corrosive agents, but long-term outcome is unknown. METHODS:Patients who underwent surgery between 1987 and 2006, for the treatment of severe caustic burns (group I, n = 268) or of late sequels (group ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3182583fb2
更新日期:2012-12-01 00:00:00
abstract::Percutaneous transhepatic bile drainage was performed in 13 patients with obstructive jaundice, using a combination of the PTC technique and a Seldinger angiography catheter. In 11 cases, the outflow of bile through the catheter was satisfactory and complications were few. Since the risk of the procedure is low and it...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-197701000-00018
更新日期:1977-01-01 00:00:00
abstract:OBJECTIVES:Recent data from Iraq supporting early aggressive use of fresh frozen plasma (FFP) in a 1:1 ratio to packed red blood cells (PRBCs) has led many civilian trauma centers to adopt this resource intensive strategy. METHODS:Prospective data were collected on 806 consecutive trauma patients admitted to the inten...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e31818990ed
更新日期:2008-10-01 00:00:00
abstract:OBJECTIVE:To assess the impact of a laparoscopic approach on female fecundity in ileoanal pouch surgery. BACKGROUND:Restorative proctocolectomy with ileal pouch anal anastomosis (IPAA) is associated with tubal factor infertility in female patients. Different studies showed less adhesion formation after laparoscopic co...
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章
doi:10.1097/SLA.0b013e318250caa9
更新日期:2012-12-01 00:00:00
abstract::In 79 patients in whom distal small vessel bypass with autogenous vein was used for revascularization because of gangrene, gangrenous ulceration or rest pain, 14 had femoroperoneal bypasses. Femorotibial or femoroperoneal bypasses were performed in those patients in whom no popliteal runoff was present on pre-operativ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-197502000-00010
更新日期:1975-02-01 00:00:00
abstract::Delivery of cardioplegic (CP) solutions to all regions of the myocardium is critical for optimal myocardial protection during cardiac surgery. However, there are little data regarding the effects of CP agents upon coronary vascular resistance (CVR) and CP delivery. Accordingly, we evaluated blood CP (Hct 30) delivery ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198309000-00003
更新日期:1983-09-01 00:00:00
abstract:OBJECTIVE:To assess surgical aspects in the treatment of children with unilateral Wilms tumor based on data from the Cooperative Tumor Study SIOP 93-01 of the German Society of Pediatric Hematology and Oncology. SUMMARY BACKGROUND DATA:Although multiple international study trials exist for the treatment of nephroblast...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e31819ed92b
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:To examine the development of acute kidney injury (AKI) after burn injury as an independent risk factor for increased morbidity and mortality over initial hospitalization and 1-year follow-up. BACKGROUND:Variability in fluid resuscitation and difficulty recognizing early sepsis are major barriers to preventi...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001979
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVE:To evaluate whether pregnancy is associated with increased risk for small bowel obstruction after laparoscopic gastric bypass surgery. BACKGROUND:Small bowel obstruction is a common and feared long-term complication to laparoscopic gastric bypass surgery that may be more common during pregnancy. It is unclea...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000003163
更新日期:2020-07-01 00:00:00
abstract:BACKGROUND:Hospitals increasingly rely on surgical quality assessment programs that require considerable resources to capture outcomes after hospital discharge. However, it is unclear whether capturing postdischarge complications and deaths is important. Our objectives were (1) to determine the frequency of postdischar...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3181e4846e
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:The role of adjuvant chemoradiation in esophageal cancer has been underestimated in the literature. This study was undertaken to determine whether adjuvant chemoradiation improves survival compared with surgery alone. METHODS:Data of 1095 esophageal squamous cell carcinoma (ESCC) patients, including 679 in ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001410
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:To describe the field of surgical innovation from a historical perspective, applying new findings from research in technology innovation. BACKGROUND:While surgical innovation has a rich tradition, as a field of study it is embryonic. Only a handful of academic centers of surgical innovation exist, all of whi...
journal_title:Annals of surgery
pub_type: 历史文章,杂志文章,评审
doi:10.1097/01.sla.0000242706.91771.ce
更新日期:2006-11-01 00:00:00
abstract:OBJECTIVE:This article outlines the formation of the Australian and New Zealand Audit of Surgical Mortality (ANZASM) and describes its objectives, governance, functioning and challenges. BACKGROUND:A nationwide audit of surgical mortality provides an overview of the leading causes of death in patients who require surg...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000000581
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND:The efficacy of irrigating the peritoneal cavity during appendectomy for perforated appendicitis has been debated extensively. To date, prospective comparative data are lacking. Therefore, we conducted a prospective, randomized trial comparing peritoneal irrigation to suction alone during laparoscopic append...
journal_title:Annals of surgery
pub_type: 杂志文章,随机对照试验
doi:10.1097/SLA.0b013e31826a91e5
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVE:To quantitate disease-specific hospital-based medical costs in 34 patients with chronic pancreatitis before and after treatment by either duodenal-preserving pancreatic head resection (DPPHR) or pylorus-preserving pancreaticoduodenectomy (PPPD). SUMMARY BACKGROUND DATA:Pancreatic head resection in selected p...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-200111000-00012
更新日期:2001-11-01 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 determine if addition of the S-nitrosylating agent ethyl nitrite (ENO) to the preservation solution can improve perfusion parameters in pumped human kidneys. BACKGROUND:A significant percentage of actively stored kidneys experience elevations in resistance and decreases in flow rate during the ex vivo sto...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000003702
更新日期:2019-12-05 00:00:00
abstract:OBJECTIVE:To review the literature on current management of hepatocellular carcinoma (HCC). BACKGROUND:Hepatocellular carcinoma represents one of the most common malignancies worldwide with a rising incidence in western countries. There have been substantial advances in the surgical and medical treatment of HCC within...
journal_title:Annals of surgery
pub_type: 杂志文章,评审
doi:10.1097/SLA.0b013e31820d944f
更新日期:2011-03-01 00:00:00
abstract:OBJECTIVE:By comparing cohorts in 2 exclusive time frames, the factors that affected the surgical outcomes of patients with hepatocellular carcinoma (HCC) are presented. SUMMARY BACKGROUND DATA:Reportedly, survival results of patients with HCC who underwent hepatectomy have improved in recent years. However, the major...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/01.sla.0000217921.28563.55
更新日期:2006-08-01 00:00:00
abstract:OBJECTIVE:To determine the role of the microvascular endothelium in the regulation of regenerating liver mass after partial hepatectomy. SUMMARY BACKGROUND DATA:Angiogenesis is critical for both pathologic and physiologic processes. The ability of certain tissues, such as the liver, kidney, and spleen, to regenerate a...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/01.SLA.0000059986.96051.EA
更新日期:2003-04-01 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::All cases of penetrating cardiac trauma in 1985 and 1986 in Jefferson County, Alabama, where patients dying of penetrating trauma received autopsies, were retrospectively reviewed. All hospitals in the county plus the single coroner's office provided the records of the 72 patients comprising this study. Incidents occu...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198906000-00004
更新日期:1989-06-01 00:00:00
abstract:OBJECTIVE:To develop and validate a preoperative frailty index (pFI) for use in population-based health administrative (HA) data. SUMMARY BACKGROUND DATA:Frailty is a robust predictor of adverse postoperative outcomes. Population-level frailty measures used in surgical studies have significant methodological limitatio...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000002769
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:We tested the hypothesis that the avoidance of preoperative fasting by hypocaloric nutrition attenuates protein catabolism after surgery. SUMMARY BACKGROUND DATA:Prolonged fasting before major abdominal procedures has been demonstrated to accentuate the catabolic response to surgery. METHODS:Twenty-two pati...
journal_title:Annals of surgery
pub_type: 杂志文章,随机对照试验
doi:10.1097/SLA.0b013e31818842d8
更新日期:2008-12-01 00:00:00
abstract::Most patients with Marfan's syndrome have cardiovascular manifestations and complications of these abnormalities lead to death in 50% of patients by the age of 32. This report is concerned with the performance of 79 operations to control these problems in 41 patients during a 16-year period. There were 3 early deaths ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198310000-00009
更新日期:1983-10-01 00:00:00
abstract:OBJECTIVE:To determine whether the rates of death and complications of carotid endarterectomy (CE) were different in the octogenarian population than in patients younger than age 80. SUMMARY BACKGROUND DATA:The utility of CE depends on the ability of the surgeon and hospital to attain low rates of death and complicati...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-200006000-00001
更新日期:2000-06-01 00:00:00
abstract:OBJECTIVE:To assess whether level of arterial obstruction determines the effectiveness of SET in patients with IC. BACKGROUND DATA:Guidelines advocate SET before invasive treatment for IC, but early revascularization remains widespread, especially in patients with aortoiliac disease. METHODS:Patients were recruited f...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000004073
更新日期:2020-07-24 00:00:00