Abstract：
BACKGROUND:Laparoscopic Roux-en-Y gastric bypass (LRYGB) produces durable and clinically significant weight loss. We aim to characterize the trajectory of weight loss, and demonstrate the predictive ability of three-month performance on final weight loss. METHODS:Retrospective analysis of 1097 consecutive LRYGB patients allowed for assessment of conformity of various weight loss trajectory models. Establishing exponential decay as the optimal fit, initial, three-month and final BMI values were used to determine empiric rate constants (λ3). Empirically derived weight loss curves and associated rate constants (λ) were generated. RESULTS:Exponential decay optimally characterizes post-LRYGB weight loss trajectory. Final weight loss can be characterized by λ3, as well as by the demographics black race (P = 0.008) and initial BMI (P < 0.001). Stratification by three-month weight loss allowed derivation of weight loss trajectory curves to predict weight at any point until and including plateau. CONCLUSIONS:Weight loss after LRYGB conforms well to exponential decay, and postoperative trajectory can thus be predicted early. This allows the clinician early identification and intervention upon patients at risk of poor performance.
journal_name
Am J Surgjournal_title
American journal of surgeryauthors
Wise ES,Felton J,Kligman MDdoi
10.1016/j.amjsurg.2017.10.024subject
Has Abstractpub_date
2018-07-01 00:00:00pages
120-123issue
1eissn
0002-9610issn
1879-1883pii
S0002-9610(17)31328-4journal_volume
216pub_type
杂志文章abstract：BACKGROUND:Ultrasonography (USG) and technetium-99m sestamibi (MIBI) scintigraphy are commonly used imaging modalities in the era of minimally invasive parathyroidectomy (MIP) for primary hyperparathyroidism (pHPT). However, their relative importance and actual contribution to MIP have not been prospectively assessed. ...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2006.04.020
更新日期：2007-02-01 00:00:00
abstract：BACKGROUND:The insertion and subsequent removal of chest tubes are frequently performed procedures. We hypothesize that routine chest radiographs obtained after chest tube removal to confirm the absence of any post-procedure complications have little impact on clinical management. MATERIALS AND METHODS:A 5-year retros...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/s0002-9610(99)00260-3
更新日期：2000-01-01 00:00:00
abstract：:Fixation of polypropylene (Marlex) mesh in the epigastrium and at the iliac crest can be ineffective because of insufficient local fascia; however, two techniques have been described to obtain firm and durable attachment of polypropylene grafts at these sites. Perichondral slips at the costal margin permit very satisf...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/s0002-9610(85)80194-x
更新日期：1985-06-01 00:00:00
abstract：PURPOSE:The Integrated Procedural Performance Instrument (IPPI) consists of clinical scenarios in which bench-top models are positioned to simulated patients. Trainees are required to perform technical skills while engaging with the patient. The purpose of this study was to determine whether an IPPI format examination ...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2008.08.011
更新日期：2009-01-01 00:00:00
abstract：BACKGROUND:During the reproductive years, women have a 4-fold higher prevalence of gallstones than men, making gallbladder disease a critically important topic in women's health. Among age-matched women and men hospitalized for cholecystitis, gender based differences in demographics, management, and economic and clinic...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2013.07.011
更新日期：2013-11-01 00:00:00
abstract：:The management of primary varicose veins is evolving. Recovery time, cost, recurrence rate, and cosmesis are critical determinants. Classic "high ligation" and ankle-to-groin stripping is expensive, results in a long convalescence, and may produce unacceptable scarring and possible permanent nerve injury. This report ...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(91)90182-d
更新日期：1991-08-01 00:00:00
abstract：BACKGROUND:We proposed to develop a novel virtual reality (VR) team training system. The objective of this study was to determine the feasibility of creating a VR operating room to simulate a surgical crisis scenario and evaluate the simulator for construct and face validity. METHODS:We modified ICE STORM (Integrated ...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2015.01.024
更新日期：2015-09-01 00:00:00
abstract：:Lasers have been used for endoscopic gastrointestinal surgery at our institution since 1977. The argon and Nd-YAG lasers are valuable for coagulating upper gastrointestinal hemorrhage, arteriovenous malformations, and benign and malignant lesions, as well as a variety of anatomic anomalies. Between December 1977 and S...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(84)90427-6
更新日期：1984-12-01 00:00:00
abstract：:Curettage of lymph nodes in 36 patients with cancer of the thoracic esophagus was performed in the bilateral supraclavicular, right intrathoracic and abdominal regions. The overall metastatic ratio in lymph nodes was 52.8 percent (19 of 36). It was particularly high in the right supraclavicular nodes (26.7 percent), t...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(81)90160-4
更新日期：1981-02-01 00:00:00
abstract：:The lower esophageal high pressure zone (HPZ) was characterized manometrically and reflux status determined in eight male rhesus monkeys. The studies were repeated six weeks and six months after 50 per cent distal small bowel resection. At the same time fasting serum gastrin and gastric inhibitory polypeptide values w...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(77)90002-2
更新日期：1977-05-01 00:00:00
abstract：:Appendicitis in preschool children is not uncommon. A duration of greater than 40 hours usually implied perforation. The most common findings were abdominal pain, tenderness, temperature elevation and vomiting. In the presence of perforation or abscess formation, appendectomy followed by copious wound irrigation, absc...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(80)90265-2
更新日期：1980-02-01 00:00:00
abstract：BACKGROUND:This 17-year review was undertaken to examine clinical outcomes and the changing trends in resource utilization for lower extremity bypass grafts performed in a managed care setting. PATIENTS AND METHODS:Between 1979 and 1995, 338 bypasses in 276 patients (199 men, 77 women; 62% diabetics) were carried out ...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/S0002-9610(96)00130-4
更新日期：1996-08-01 00:00:00
abstract：BACKGROUND:The National Trauma Data Bank (NTDB) includes patient comorbidities. This study evaluates factors of trauma centers associated with higher rates of missing comorbidity data. METHODS:Proportions of missing comorbidity data from facilities in the NTDB from 2011 to 2014 were evaluated for associations with fac...
journal_title：American journal of surgery
pub_type： 杂志文章,多中心研究
doi：10.1016/j.amjsurg.2018.01.031
更新日期：2018-09-01 00:00:00
abstract：:Vascular control of the injured retrohepatic vena cava is invariably a surgical challenge. Herein, we describe the technical aspects of inserting a vena cava balloon shunt through the saphenofemoral junction. The advantages of this approach include relative simplicity, maintenance of perihepatic tamponade, and avoidin...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(89)90288-2
更新日期：1989-11-01 00:00:00
abstract：BACKGROUND:The bispectral index (BIS) is a processed electroencephalographic value (awake = 100, isoelectric = 0). The relationship of BIS and brain death (BD) is assessed. METHODS:BIS was evaluated in GCS 3 head-injured patients with BD (no brain function including apnea) or near BD (no apnea or negative ancillary te...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2009.05.032
更新日期：2009-12-01 00:00:00
abstract：BACKGROUND:The purpose of the current study was to define the rate of underlying malignancy in endoscopically unresectable polyps. METHODS:An institutional review board-approved review identified all patients undergoing colectomy for radiologically identified or endoscopically unresectable polyps between 1997 and 2006...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2006.08.004
更新日期：2006-11-01 00:00:00
abstract：:The following report illustrates a rare case of small bowel obstruction which occurred when a large phytobezoar, which had formed in a proximal jejunal diverticulum, dislodged and migrated distally. Obstruction and subsequent perforation resulted when the phytobezoar passed into the narrow terminal ileum and lodged ju...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2007.02.018
更新日期：2008-01-01 00:00:00
abstract：:Experience with 37 patients with adult colovesical fistula over the past 19 years is reviewed. Specific guidelines for treatment of adult colovesical fistula are influenced by the location and cause of the fistula, the patient's general condition, the presence of a pelvic abscess and the presence of colonic obstructio...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(80)90421-3
更新日期：1980-07-01 00:00:00
abstract：BACKGROUND:Few studies have evaluated the role of computed tomography-guided percutaneous drainage (PD) in the management of gastrointestinal (GI) anastomotic leaks. METHODS:Ten-year review of an interventional radiology database identified patients with symptomatic GI anastomotic leaks. Clinical, laboratory, radiogra...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2013.08.050
更新日期：2014-07-01 00:00:00
abstract：:False aneurysm formation in a twenty-nine year old black woman treated for renovascular hypertension secondary to fibromuscular hyperplasia by knitted Dacron prosthetic patch angioplasty is reported. Etiologic mechanisms are discussed. The most likely factors leading to false aneurysm formation in this patient are dis...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(76)90366-4
更新日期：1976-11-01 00:00:00
abstract：BACKGROUND:Predictors of weight loss (WL) or weight regain (WR) after Roux-en-Y gastric bypass (RYGBP) are not established. The aim of this study was to analyze the usefulness of some baseline peptides (leptin, insulin, and ghrelin) as biomarkers of WL and WR in morbid obese patients after RYGBP at long term. METHODS:...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2014.08.040
更新日期：2015-08-01 00:00:00
abstract：:The multicentric occurrence of tumors of the upper aerodigestive tract has been well described, with an incidence ranging from 5 to 16 percent. Detection of a synchronous primary tumor at the time of initial work-up is crucial both for management and final outcome. However, there is a diversity of opinions regarding t...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/s0002-9610(88)80036-9
更新日期：1988-06-01 00:00:00
abstract：BACKGROUND:The feasibility and safety of low-pressure pneumoperitoneum in laparoscopic cholecystectomy remain unclear. METHODS:A meta-analysis of randomized controlled trials comparing low-pressure with standard-pressure pneumoperitoneum was performed. RESULTS:A total of 1,263 patients were included. Low-pressure pne...
journal_title：American journal of surgery
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.amjsurg.2013.09.027
更新日期：2014-07-01 00:00:00
abstract：BACKGROUND:Selective shunting during carotid endarterectomy is associated with the lowest operative stroke rate; therefore, patient selection for carotid shunting is critical. Electroencephalography (EEG) can detect ischemic brain cell dysfunction before irreversible injury. The carotid stump back pressure (CSP) has be...
journal_title：American journal of surgery
pub_type： 临床试验,杂志文章
doi：10.1016/s0002-9610(99)80275-x
更新日期：1995-08-01 00:00:00
abstract：:Twenty-one patients presented with pathologic interactions between the gastrointestinal tract and aortic grafts. Seventeen patients were managed by excision of the graft and axillobifemoral bypass. Six patients died. four deaths were due to disruption of the proximal aortic stump after initial therapy that appeared su...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/0002-9610(80)90003-3
更新日期：1980-08-01 00:00:00
abstract：BACKGROUND:A history of therapeutic irradiation to the neck complicates the management of carotid artery occlusive disease. Serious surgical concerns are raised regarding alternative incisions, difficult dissections, and adequate wound closure. Pathology may be typical atherosclerotic occlusive disease or radiation-ind...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/S0002-9610(96)00150-X
更新日期：1996-08-01 00:00:00
abstract：BACKGROUND:Acute diverticulitis of the right colon is a rare condition with a higher incidence in Oriental populations than in Occidental populations. PATIENTS AND METHODS:A retrospective review was conducted between 1982 and 1993 on 22 surgically treated Chinese patients (14 men, 8 women; mean age 47 years) with docu...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/S0002-9610(97)89559-1
更新日期：1996-02-01 00:00:00
abstract：:Hypersplenism was not relieved by distal splenorenal shunting in 46 of 47 Japanese patients with nonalcoholic cirrhosis of the liver. However, the platelet count significantly increased by 40 percent of the preoperative value, whereas the increment in the white blood cell count was nil. Though the platelet count in 47...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/s0002-9610(88)80164-8
更新日期：1988-07-01 00:00:00
abstract：:The aim of this study was to evaluate whether total gastrectomy performed for gastric cancer leads to an increased risk of cholelithiasis and whether the method of reconstruction of the digestive tract influences that risk. A total of 102 patients who had undergone total gastrectomy for gastric cancer between 1980 and...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/s0002-9610(05)80573-2
更新日期：1993-07-01 00:00:00
abstract：BACKGROUND:Elderly patients are at an increased risk of protein-energy malnutrition (PEM) which increases the risk of morbidity/mortality. We evaluated the association between hypoalbuminemia at the time of emergency department (ED) admission and in-hospital complications among geriatric trauma patients. METHODS:This ...
journal_title：American journal of surgery
pub_type： 杂志文章
doi：10.1016/j.amjsurg.2015.06.013
更新日期：2016-07-01 00:00:00
