Risk factors for conversion to conventional laparoscopic cholecystectomy in single incision laparoscopic cholecystectomy.
OBJECTIVE
The aim of this study was to investigate the risk factors for conversion to conventional laparoscopic cholecystectomy (CLC) in single incision laparoscopic cholecystectomy (SILC) along with the proposal for procedure selection guidelines in treating patients with benign gallbladder (GB) diseases.


METHODS
SILC was performed in 697 cases between April 2010 and July 2014. Seventeen cases (2.4%) underwent conversion to conventional LC. We compared these 2 groups and analyzed the risk factors for conversion to CLC.


RESULTS
In univariate analysis, American Society of Anesthesiologist score > 3, preoperative percutaneous transhepatic GB drainage status and pathology (acute cholecystitis or GB empyema) were significant risk factors for conversion (P = 0.010, P = 0.019 and P < 0.001). In multivariate analysis, pathology (acute cholecystitis or GB empyema) was significant risk factors for conversion to CLC in SILC (P < 0.001).


CONCLUSIONS
Although SILC is a feasible method for most patients with benign GB disease, CLC has to be considered in patients with acute cholecystitis or GB empyema because it is likely to result in inadequate visualization of the Calot's triangle and greater bleeding risk.
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
Sung Gon
SG
Kim
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
Ju Ik
JI
Moon
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
In Seok
IS
Choi
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
Sang Eok
SE
Lee
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
Nak Song
NS
Sung
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
Ki Won
KW
Chun
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
Hye Yoon
HY
Lee
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
Dae Sung
DS
Yoon
Department of Surgery, Konyang University Hospital, Daejeon, Korea.
Won Jun
WJ
Choi
Cholecystectomy; Conversion; Risk factors; Single incision laparoscopic