1. [1] Shamim M. Fatima and Baqai hospital after observing 1238 patients concluded that the conversion rate in laparoscopic cholecystectomy was 6%(81 patients) of which Calots triangle adhesions-44, Arterial injury-11, Wide cystic duct -7, CBD injury-5, Equipment failure-9, Bowel injury-5. J Pak Med Assoc 2009;59(7):456.
2. Prediction of conversion of laparoscopic cholecystectomy to open surgery with artificial neural networks;Gholipur;BMC Surgery,2009
3. [3] Al-Bahlooli SH, Al-Malahi A, Ghallab NH, et al. Yemen observed 650 patients and stated that the conversion rate in laparoscopic cholecystectomy was 8.3% (59 patients), adhesions being the most common cause. University of Science and Technology Yemeni Journal for Medical Sciences Yemeni Journal for Medical Sciences 2009;1(3):1-8. www.ust.edu.ye http://www.med.ust.edu.ye/Journal/Journal.htm
4. [4] Gabriel R, Kumar S, Shrestha A. Evaluation of predictive factors for conversion of laparoscopic cholecystectomy. India in 2005 stated that the conversion rate in laparoscopic cholecystectomy was 26%. Kathmandu Univ Med J 2009;7(25):26-30.
5. [5] Khan IA, El-Tiney OE. Laparoscopic cholecystectomy for acute cholecystitis. Can preoperative factors predict conversion? After analysis of 44 patients who underwent laparoscopic cholecystectomy for acute cholecystitis observed that the conversion rate in laparoscopic cholecystectomy was 23%. Saudi Med J 2004;25(3):299-302.