View clinical trials related to Abdominal Surgery.
Filter by:Primary Objective: The primary objective of the study is to characterize and measure the impact of major surgery on the kinetics of endothelial function during the perioperative period. Reactive hyperemia, characterized by Digital Thermal Monitoring (DTM), will be utilized to characterize this during the perioperative period in patients undergoing major abdominal or thoracic surgery. This will attempt to characterize the relationship between impaired endothelial function, the extent of surgical insult, and the risk for adverse postoperative outcome. Secondary Objectives: Secondary objectives of this study will evaluate the following: - The incidence of major complications in correlation to reduced preoperative reactive hyperemia - The incidence of major complications in correlation to reduced postoperative reactive hyperemia (calculated as absolute value and as the change from baseline [delta]). - It is anticipated that two factors (namely, preoperative cardiovascular risk and the extent of the intraoperative inflammatory response) will predominantly contribute to the impaired microcirculatory/hyperemic/endothelial function and should therefore be accounted for in this study. The correlation between impaired reactive hyperemia and these two contributory factors will be evaluated. 1. Preoperative cardiovascular risk will be assessed using risk scoring systems that attempt to infer patient risk according to preoperative co-morbidities, namely The ASA Physical Status Classification System24, The Lee Modified Cardiac Risk Index,25 and The University of Texas M. D. Anderson Cancer Center Modifiers to the Lee Modified Cardiac Risk Index (an unvalidated scoring system that considers factors unique to the cancer surgical population), and The Metabolic Syndrome. The latter represents a larger at-risk patient population who has yet to develop symptomatic cardiac lesions (and therefore will not be identified by the Lee modified Cardiac Risk Index). 2. Intraoperative inflammatory response will be assessed using quantitative assays for C-RP, and cytokines. - Multivariate analysis will analyze for intraoperative perturbations—including hemodynamic (heart rate, blood pressure), temperature, and fluid shifts (blood loss, transfusions.
Abdominal surgical procedures can increase risks of pulmonary complications.The aim of the study was to evaluate the benefits of an early intervention of chest physiotherapy during immediate post-operative in patients submitted to elective abdominal surgery.
This study is being done to find a different way to identify the ureters during an abdominal operation. During some operations, the operating physician must identify where the ureters are to prevent injury to them. Typically, the surgeon calls the urologist to thread a small scope with a camera into the urethra (where the urine comes out) to place a wire into each of the two ureters to locate them. Instead of this procedure, we will inject a small amount of a radioactive chemical dye (TC99-DTPA)through a vein in your arm. The ureters can then be detected by a hand held probe called the 'gamma probe.' The TC99-DTPA dye passes through the body and is excreted through the urine. The goal of this study is that this probe will alert the physician when it placed directly over the ureters since the TC99-DTPA dye will highlight the ureters as the flow of urine goes through them.
The primary objective is to evaluate the influence of continuous local anesthetic infiltration on tissue oxygenation after surgical procedures requiring abdominal surgery as a major predictor for wound healing.
The investigators propose to determine esophageal Doppler goal-directed fluid requirements in lean, overweight, obese, and morbidly obese patients with the goal of developing a body mass index (BMI)-specific fluid replacement strategy. Specifically, th investigators will test the hypothesis that perioperative fluid requirements on a per-kg basis varies as a function of BMI. Individuals scheduled for elective, open abdominal surgeries, vaginal hysterectomies or genital prolapse repair will be eligible to participate
The purpose of the study is to evaluate the impact of epidural anesthesia on sympathetic activity in surgical patients. The study investigates whether a segmental sympathetic block can be determined and can be correlated to level of the sensoric blockade.