Does percutaneous cholecystostomy affect prognosis of patients with acute cholecystitis that are unresponsive to conservative treatment?

Background: Percutaneous cholecystostomy (PC) can be used as bridging or definitive therapy in some cases of acute cholecystitis. We aimed to compare hospital stay and survival of patients that underwent PC insertion because of acute calculus cholecystitis (ACC) compared to those who did not. Methods: This is a retrospective study in which patients with gangrenous cholecystitis and perforation were excluded. Regression models were used to evaluate the influence of PC on mortality and hospital stay. Results: Six hundred and eighty-three patients were admitted because of ACC, and 50 patients were referred to PC. Indication for PC insertion were high disease severity index (DSI, 8 pts) and failure of conservative treatment with total disease duration >7 days (42 pts). Those who underwent PC were older (76.0 ± 12.4 vs. 60.8 ± 19.2, P < 0.001); PC was associated with longer hospital stay (12.8 vs. 6.5 days) and higher one-year mortality (20% vs. 4.9%, P < 0.001). Among patients with non-severe disease severity index (DSI), PC was associated with longer length of hospital stay and higher one-year mortality compared to patients treated conservatively (9.9 ± 0.6 vs. 6.0 ± 0.2 days, and 16.7% vs. 4.0%, respectively, P < 0.001 for both). For patients with severe DSI, PC was associated with similar length of hospital stay and one-year mortality compared to similar patients treated conservatively (16.1 ± 8.1 vs. 18.4 ± 4.0 days, and 37.5% vs. 22.6%, respectively, P = 0.802 and P = 0.389, respectively). Conclusions: In patients with mild–moderate DSI unresponsive to conservative treatment, PC may be associated with deteriorated prognosis compared to conservative treatment. The decision to insert PC in patients unresponsive to conservative therapy even with disease duration >7 days must be re-evaluated.