ABSTRACT
Background: Ultrasonography is a simple and noninvasive examination that can be easily performed after renal transplantation because of the lack of toxicity. The resistive index (RI) was measured using Doppler ultrasound at 7 days postoperatively in patients who underwent renal transplantation. The study aimed to determine the risk of graft loss and premature death within 1 year after transplantation. Methods: This study was conducted from January 2011 to October 2017 and involved 97 patients who underwent renal transplantation at the Chosun University Hospital, Kwangju, Korea. Brain-dead donors were selected. Several parameters were assessed as recipient variables. In addition, postoperative delayed renal function and complications were examined. At 7 days after surgery, the RI was measured in all patients (the mean value of three measurements taken at different positions was used). Results: Of the 97 patients, 40 had an RI of ≥0.8 or greater. Of these, four patients died, and a total of seven developed transplant failure. Logistic regression analysis was conducted to predict the risk of transplant failure and mortality based on complex influences of the relevant variables. The RI showed a relative risk value of 12.711 for transplant failure (P=0.003) and was significantly associated with mortality (P=0.001). Conclusions: The RI was highly correlated with graft loss and recipient mortality after renal transplantation. Measurement of the RI after renal transplantation may lead to a more aggressive management of high-risk patients, and consequently improve the post-transplantation outcome.
ABSTRACT
[This corrects the article on p. 55 in vol. 33.].
ABSTRACT
PURPOSE: Emergency colorectal surgery has high rates of complications and mortality because of incomplete bowel preparation and bacterial contamination. The authors aimed to evaluate the surgical outcomes and the risk factors for the mortality and the complication rates of patients who underwent emergency surgery to treat colorectal diseases. METHODS: This is a prospective study from January 2014 to April 2016, and the results are based on a retrospective analysis of the clinical results for patients who underwent emergency colorectal surgery at Chosun University Hospital. RESULTS: A total of 99 patients underwent emergency colorectal surgery during the study period. The most frequent indication of surgery was perforation (75.8%). The causes of disease were colorectal cancer (19.2%), complicated diverticulitis (21.2%), and ischemia (27.2%). There were 27 mortalities (27.3%). The major morbidity was 39.5%. Preoperative hypotension and perioperative blood transfusion were independent risk factors for both morbidity and mortality. CONCLUSION: These results revealed that emergency colorectal surgeries are associated with significant morbidity and mortality. Furthermore, the independent risk factors for both morbidity and mortality in such patiients were preoperative hypotension and perioperative transfusion.
