BACKGROUND: Acute cholecystitis (AC) is increasingly common and imposes a burden on healthcare systems, particularly in the elderly population. While laparoscopic cholecystectomy (LC) is the definitive treatment, percutaneous cholecystostomy (PC) is often preferred based on various factors. The treatment of elderly patients requires a multidisciplinary approach that carefully assesses surgical risks due to age-related changes and comorbidities. This retrospective study evaluates factors affecting mortality, morbidity, and hospital stay in elderly patients diagnosed with AC who presented to the emergency department and underwent PC. METHODS: This retrospective study, conducted between January 2013 and January 2021, included patients aged 70 years and older with grade 2 and 3 AC, as classified by the Tokyo Guidelines, who underwent PC. Data on laboratory parameters, comorbidities, and outcomes were collected and analyzed. RESULTS: Among the 76 included patients, complications occurred in 7.9% of cases, with catheter replacement being the most common complication. In-hospital mortality was 5.2%. Factors influencing hospital stay included intervention timing and serum albumin levels. Placement of percutaneous cholecystostomy within the first three days of hospitalization has been shown to shorten the length of hospital stay. CONCLUSION: Personalized treatment strategies are essential for managing AC in elderly patients. Early placement of PC may reduce hospital stays and associated costs. Further research and updated guidelines are necessary to optimize outcomes in this demographic group.