Assessment parameters included hemodynamics , pain severity , total analgesic consumption , and measurement of interleukins ( IL ) ( IL-@ and IL-@ ) at baseline time after anesthetic induction ( TBaseline , ) ; at the end of the abdominal stage of the operation ( TAbdo , ) ; @ minutes after initiation and at the end of OLV ( TOLV @ ) and ( TOLV End ) respectively ; one and @ hours after the end of the surgical procedure ( TPostop@ and TPostop@ ) , respectively , and patient 's outcome also recorded .