title: Influencing factors on postoperative hospital stay after laparoscopic cholecystectomy.
abstract: OBJECTIVE
  Laparoscopic cholecystectomy can reduce postoperative pain and recovery time. However, some patients experience prolonged postoperative hospital stay. We aimed to identify factors influencing the postoperative hospital stay after laparoscopic cholecystectomy.
  
  
  METHODS
  Patients (n=336) undergoing laparoscopic cholecystectomy for gallbladder pathology at 8 hospitals were enrolled and divided into 2 groups: 2 or less and more than 2 days postoperative stay. Perioperative factors and patient factors were retrospectively analyzed.
  
  
  RESULTS
  The patient population median age was 52 years, and consisted of 32 emergency and 304 elective operations. A univariate analysis of perioperative factors revealed significant differences in operation time (p<0.001), perioperative transfusion (p=0.006), emergency operation (p<0.001), acute inflammation (p<0.001), and surgical site infection (p=0.041). A univariate analysis of patient factors revealed significant differences in age (p<0.001), gender (p=0.036), diabetes mellitus (p=0.011), preoperative albumin level (p=0.024), smoking (p=0.010), and American Society of Anesthesiologists score (p=0.003). In a multivariate analysis, operation time (p<0.001), emergency operation (p<0.001), age (p=0.014), and smoking (p=0.022) were identified as independent factors influencing length of postoperative hospital stay.
  
  
  CONCLUSIONS
  Operation time, emergency operation, patient age, and smoking influenced the postoperative hospital stay and should be the focus of efforts to reduce hospital stay after laparoscopic cholecystectomy.
authors.affiliation: Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jae Uk
authors.initials: JU
authors.lastname: Chong
authors.affiliation: Department of Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Jin Ho
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Surgery, Incheon St. Mary Hospital, Catholic University College of Medicine, Incheon, Korea.
authors.forename: Young Chul
authors.initials: YC
authors.lastname: Yoon
authors.affiliation: Department of Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Kuk Hwan
authors.initials: KH
authors.lastname: Kwon
authors.affiliation: Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
authors.forename: Jai Young
authors.initials: JY
authors.lastname: Cho
authors.affiliation: Department of Surgery, Daejeon St. Mary Hospital, Catholic University College of Medicine, Daejeon, Korea.
authors.forename: Say-Jun
authors.initials: SJ
authors.lastname: Kim
authors.affiliation: Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jae Keun
authors.initials: JK
authors.lastname: Kim
authors.affiliation: Department of Surgery, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea.
authors.forename: Sung Hoon
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Surgery, Guro Hospital, Korea University College of Medicine, Seoul, Korea.
authors.forename: Sae Byeol
authors.initials: SB
authors.lastname: Choi
authors.affiliation: Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Kyung Sik
authors.initials: KS
authors.lastname: Kim
keywords: Hospital stay; Laparoscopic cholecystectomy; Postoperative complications