Interventional Radiology in Acute Cholecystitis: A Review of Contemporary Percutaneous Strategies and Emerging Techniques

Background/Objectives: Acute cholecystitis is a common surgical emergency associated with significant morbidity in elderly, frail, and critically ill poor surgical candidates. Early laparoscopic cholecystectomy remains the standard of care for low-risk patients, but interventional radiology (IR) modalities have been increasingly used in high-risk patients for gallbladder decompression, source control, and/or definitive non-operative treatment. Methods: A narrative review of the literature was performed to investigate current percutaneous IR options in acute cholecystitis. Evidence from international guidelines, randomized trials, systematic reviews, meta-analyses, and experimental novel techniques were reviewed. The patient selection approaches, timing of intervention, efficacy, complications, and risk of recurrence were summarized. Results: Percutaneous cholecystostomy remains the most commonly performed IR procedure for acute cholecystitis, offering decompression and source control in patients unfit for surgery. Percutaneous gallstone extraction and gallbladder chemical ablation, or cryoablation, have been used to reduce recurrence and long-term catheter dependence with promising results, but are still limited by complications and insufficient evidence. The variability in practice patterns and the absence of standardized treatment algorithms contribute to mixed results, ranging from long-term/definitive symptom control to the prolonged dependence on indwelling catheters and readmissions for catheter-related complications. Conclusions: IR plays an important role in the management of high-risk patients with acute cholecystitis. The careful selection of patients based on disease severity, physiologic reserve, frailty, and patient-centered goals is frequently limited by institutional resources. A structured clinical decision framework to guide IR-based interventions in acute cholecystitis is of the utmost importance to achieve optimal outcomes. Future studies should focus on standardized algorithms, patient-centered outcomes, recurrence, tube-free survival, and quality of life.