Limm Wm

Factors affecting outcome in liver resection

BACKGROUNDnStudies demonstrate an inverse relationship between institution/surgeon procedural volumes and patient outcomes. Similar studies exist for liver resections, which recommend referral of patients for liver resections to high-volume centers. These studies did not elucidate the factors that underlie such outcomes. We believe there exists a complex interaction of patient-related and perioperative factors that determine patient outcomes after liver resection. We sought to delineate these factors.nnnMETHODSnRetrospective review of 114 liver resections by a single surgeon from 1993-2003: Records were reviewed for demographics; diagnosis; type/year of surgery; American Society of Anesthesiologists (ASA) score; preoperative albumin, creatinine, and bilirubin; operative time; intraoperative blood transfusions; epidural use; and intraoperative hypotension. Main outcome measurements were postoperative morbidities, mortalities and length of stay (LOS). Data were analyzed using a multivariate linear regression model (SPSS v10.1 statistical analysis program).nnnRESULTSnPrimary indications for resections were hepatocellular carcinoma (HCC) (N=57), metastatic colorectal cancer (N=25), and benign disease (N=18). There were no intraoperative mortalities and 4 perioperative (30-day) mortalities (3.5%). Mortality occurred in patients with malignancies who were older than 50 years. Morbidity was higher in malignant (15.6%) versus benign (5.5%) disease. Complications included bile leak/stricture (N=6), liver insufficiency (N=3), postoperative bleeding (N=2), myocardial infarction (N=2), aspiration pneumonia (N=1), renal insufficiency (N=1), and cancer implantation into the wound (N=1). Average LOS for all resections was 8.6 days. Longer operative time (p=0.04), lower albumin (p<0.001), higher ASA score (p<0.001), no epidural use (p=0.04), and higher creatinine (p<0.001) all correlated positively with longer LOS. ASA score and creatinine were the strongest predictors of LOS. LOS was not affected by patient age, sex, diagnosis, presence of malignancy, intraoperative transfusion requirements, intraoperative hypotension, preoperative bilirubin, case volume per year or year of surgery.nnnCONCLUSIONSnLiver resections can be performed with low mortality/morbidity and with acceptable LOS by an experienced liver surgeon. Outcome as measured by LOS is most influenced by patient comorbidities entering into surgery. Annual case volume did not influence LOS and had no impact on patient safety. Length of stay may not reflect surgeon/institution performance, as LOS is multifactorial and likely related to patient population, patient selection and increased high-risk cases with a surgeons experience.

A salvage technique for continuous ambulatory peritoneal dialysis catheters with exit-site infections

Catheter infection is a major complication of continuous ambulatory peritoneal dialysis (CAPD) therapy for end-stage renal disease. Catheter exist-site infections were treated with a new surgical technique consisting of dissection and removal of the existing catheter in the subcutaneous layer, insertion of a catheter connector and new catheter piece, and creation of a new subcutaneous tunnel. The new surgery can be performed on an outpatient basis and allows for the continuation of CAPD, thereby avoiding the cost associated with inpatient admission and interim hemodialysis.

Liver transplant in Hawaii: the survival of a small centre.

Abstract:u2002 Although many report the importance of case volume in complex cases, liver transplantation (LT) can be carried out successfully in a small centre. During a 11.5‐yr period, 88 patients underwent LT in a single transplant centre in Hawaii. Indications for LT were primarily hepatitis C (nu2003=u200349) and hepatitis B (nu2003=u200313) and 22 patients (25%) had hepatocellular cancer (HCC) on explanted liver. There was no primary graft nonfunction, one retransplant for recurrent hepatitis C and two late hepatic artery thromboses, which did not require a retransplant. One patient developed partial portal vein thrombosis related to a hypercoagulable state and was rescued with anticoagulation. Of the 22 patients with HCC, 18 are alive, two died from recurrent disease (253 and 1428u2003d post‐LT, respectively), one died because of a ruptured hepatic artery aneurysm (151u2003d) and one from complications caused by noncompliance (723u2003d). One‐, 3‐ and 5‐yr survival rates were 89%, 82% and 71%, respectively. Mean survival was 3034.9u2003d. During this time period, 142 liver resections, 77 pancreatic resections and 43 splenorenal shunts were performed by this group of surgeons. Because of the recent explosion of information on case volumes and centres of excellence, LT can be performed successfully at a small centre. Other major hepatobiliary/transplant procedures can help the surgeons maintain their operative skills. A smaller LT program may require a longer period of evolution, but it can provide a service for a geographically isolated population that would otherwise have limited opportunity for LT.