Article

Risk Factors for Mortality After Surgery in Patients With Cirrhosis

Division of Gastroenterologic and General Surgery, Mayo Clinic, Rochester, Minnesota, USA.
Gastroenterology (Impact Factor: 13.93). 04/2007; 132(4):1261-9. DOI: 10.1053/j.gastro.2007.01.040
Source: PubMed

ABSTRACT Current methods of predicting risk of postoperative mortality in patients with cirrhosis are suboptimal. The utility of the Model for End-stage Liver Disease (MELD) in predicting mortality after surgery other than liver transplantation is unknown. The aim of this study was to determine the risk factors for postoperative mortality in patients with cirrhosis.
Patients with cirrhosis (N = 772) who underwent major digestive (n = 586), orthopedic (n = 107), or cardiovascular (n = 79) surgery were studied. Control groups of patients with cirrhosis included 303 undergoing minor surgical procedures and 562 ambulatory patients. Univariate and multivariable proportional hazards analyses were used to determine the relationship between risk factors and mortality.
Patients undergoing major surgery were at increased risk for mortality up to 90 days postoperatively. By multivariable analysis, only MELD score, American Society of Anesthesiologists class, and age predicted mortality at 30 and 90 days, 1 year, and long-term, independently of type or year of surgery. Emergency surgery was the only independent predictor of duration of hospitalization postoperatively. Thirty-day mortality ranged from 5.7% (MELD score, <8) to more than 50% (MELD score, >20). The relationship between MELD score and mortality persisted throughout the 20-year postoperative period.
MELD score, age, and American Society of Anesthesiologists class can quantify the risk of mortality postoperatively in patients with cirrhosis, independently of the procedure performed. These factors can be used in determining operative mortality risk and whether elective surgical procedures can be delayed until after liver transplantation.

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    • "ween operative mortality and MELD score in 772 patients with cirrhosis who underwent surgery in 1980 –1990 and 1994 –2004. Panel A: shows 30-day mortality; Panel B: shows 90-day mortality. For patients with a MELD score Ͼ8, each one-point increase in the MELD score was associated with a 14% increase in both 30-day and 90-day mortality rates. (From Teh SH, Nagorney DM, Stevens SR, et al. Gastroenterology 2007;132:1261–9, with permission.) MELD, Model for End-Stage Liver Disease. risk (19). An ASA class of IV added the equivalent of 5.5 MELD points to the mortality rate, whereas an ASA class of V was associated with a 100% mortality rate. The influence of the ASA class was greatest in the first 7 days after surgery, after which the MELD score"
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