Mortality after a cholecystectomy: a population-based study
Gabriel Sandblom1, Per Videhult, Ylva Crona Guterstam
1Division of Surgery, Institution of Clinical Sciences, Intervention and Technology, Karolinska Institute, Stockholm, Sweden.
Summary
Gallstone surgery mortality is low, with only 0.15% of patients dying within 30 days. However, older age, comorbidities, and complications increase surgical risks.
Area of Science:
- Surgical Outcomes Research
- Public Health
- Gastroenterology
Background:
- Gallstone disease necessitates a balance between population-wide surgical benefits and individual risks.
- Understanding overall mortality is crucial for informed surgical decision-making.
Purpose of the Study:
- To determine the 30-day mortality rate following cholecystectomy for gallstone disease.
- To identify predictors of mortality in patients undergoing this procedure.
Main Methods:
- Analysis of 47,912 cholecystectomies registered in the Swedish GallRiks between 2007-2010.
- Linkage to the Swedish Death Register for mortality data.
- Calculation of standardized mortality ratio (SMR) and logistic regression for risk factors.
Main Results:
- Overall 30-day mortality was 0.15% (72 deaths).
- Mortality was comparable to the general Swedish population (SMR = 2.58).
- Key predictors of mortality included advanced age (>70), high Charlson Comorbidity Index (>2), ASA score >2, acute surgery, open approach, and complications.
Conclusions:
- Cholecystectomy for gallstones has a low mortality rate.
- Comorbidities and peri-operative complications significantly elevate mortality risk.
- The higher risk with open surgery may be influenced by confounding factors in surgical decision-making.
