title: The feasibility of single port laparoscopic cholecystectomy: a pilot study of 20 cases.
abstract: BACKGROUND
  Laparoscopic cholecystectomy has become the gold standard for symptomatic cholelithiasis. Traditionally done through four ports, three and two port surgeries have been described. We present a novel technique of single port cholecystectomy using the R-Port (Advanced Surgical Concepts).
  
  
  METHODS
  The R-Port is a Tri-port that allows the ingress of three 5 mm instruments through a single port. Twenty patients with symptomatic cholelithiasis were subjected to single port cholecystectomy using the R-Port through the umbilicus. Two patients also had choledocholithiasis. Modified instruments with angulated shafts were used for the surgery. A telescope with a coaxial light cable was also used. Whenever necessary, an extra needle for retraction or an additional 5 mm port was used.
  
  
  RESULTS
  Single port laparoscopic was accomplished in 17 of the 20 patients. In one patient an additional port was used for the cholecystectomy and in two others it was used for the common bile duct exploration but not for the dissection of Calot's triangle. Of the 17 patients, seven needed a single needle to retract the fundus of the gall bladder.
  
  
  CONCLUSIONS
  Single port laparoscopic cholecystectomy is feasible and safe using the R-Port. The level of difficulty is higher and a needle for retraction or an additional port may be used whenever the visualization of Calot's triangle is unsatisfactory. Further studies and the development of better instrumentation are necessary before this can be recommended as a standard procedure.
authors.affiliation: Mamata Hospital, Mumbai, India. pprao2@mac.com
authors.forename: Prashanth P
authors.initials: PP
authors.lastname: Rao
authors.forename: Sonali M
authors.initials: SM
authors.lastname: Bhagwat
authors.forename: Abhay
authors.initials: A
authors.lastname: Rane
authors.forename: Pradeep P
authors.initials: PP
authors.lastname: Rao