Coronary Artery Disease Clinical Trial
Official title:
Ketorolac Verses Paracetamol as an Adjunct to Nalbuphine in Post Operative Pain Management in Elective Cardiac Surgery
OBJECTIVE: The purpose of this study was to compare the efficacy of Ketorolac versus Paracetamol as an adjunct to Nalbuphine in the management of post-operative pain following elective cardiac surgery. STUDY DESIGN: Randomized (single-blind) control trial. SAMPLING TECHNIQUE: Computer generated, randomized selection of patients with 50% probability of assignment into either group. PLACE AND STUDY DURATION: (single center) SICU at the National Institute of Cardiovascular Diseases Hospital, Karachi over a period of six months, from January 1, 2021 up to June 30, 2021. METHODS: Sixty patients (30 in each group) were randomly assigned to receive either Paracetamol (control) or Ketorolac (treatment), along with the usual Nalbuphine infusion, over the first 48 hours postoperatively. The control group received injection Paracetamol 1gm six hourly, whereas treatment group received injection Ketorolac 30mg eight hourly. PRIMARY OUTCOME: The VAS (pain score) was evaluated at 6, 12, 18 and 24 hours post-extubation and a score of 4 or less was taken as a cut-off for adequate pain control. SECONDARY OUTCOMES: The time taken to extubation postoperatively. The total dose of Nalbuphine administered to each patient and total chest tube drainage recorded over 48 hours postoperatively.
DATA COLLECTION: Computer randomization was done for the numbers 1 to 60, having 50% probability of being in either of two groups: Ketorolac (treatment) or Paracetamol (control). After randomizing each number into either group, which ever patient (consenting and meeting the inclusion criteria) came, was allotted these numbers consecutively, as they presented for elective cardiac surgery. Thus randomly allocating the presenting patients into either Ketorolac/treatment (30 patients) and Paracetamol/control (30 patients). Each patient was explained about the VAS pain rating score twice; first at preoperative interview and second time after they recovered their alert state in the SICU post operatively( at time of extubation). The patients were taught to finger-point their intensity of pain on a line between two endpoints: marked 0 to 10. Mark at '0' meant no pain at all and '10' worst pain ever felt. The number that the patient pointed to, defined the patient's pain. For the purposes of this study "adequate pain relief" was defined as achieving a pain score of four or less, this designation was also included on the VAS scale and explained to the patients so that they may indicate numbers higher than four if they felt any pain. Standard anaesthesia was given in the operative room, total analgesia given intra-operatively was 0.4 mg/kg Nalbuphine (not exceeding 30mg). After completion of the surgery all patients were shifted to SICU. Initially both groups received a bolus dose of 10mg Nalbuphine and then an infusion of Nalbuphine was started at 2.5mg/hr as maintenance, up to 24 hours post-operatively. In addition, (according to randomization) the patients in treatment group received Ketorolac 30mg 8 hourly for 48 hours post-operatively and the patients control group received Paracetamol 1gm 6 hourly for 48 hours post-operatively. Postoperative analgesia assessment using VAS was performed at 6 hours, 12 hours, 18 hours and 24 hours postextubation. Time taken to extubation, total dose of Nalbuphine administered to each patient and total chest tube drainage were also recorded over 24 hours postoperatively. ;
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