Forty eligible patients were randomized to receive SPLC ( Group A , N. = @ ) and CLC ( Group B , N. = @ ) , and investigated with regard to age , sex , BMI ( body mass index ) , ASA ( American Society of Anesthesiologists ) score , type of surgery , operative time , per-operative complication , indication for conversion to open surgery , indication for additional trocar placement in SPLC technique , post-operative pain score , additional narcotic analgesic requirement , nausea and vomiting , post-operative complication and length of hospital stay .