The Effect Of Intraoperative Forced Air Warmer Use, On Postoperative Nausea And Vomiting

Study Overview
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Brief Summary
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Intraoperative Hypothermia is a common problem, our object will be to evaluate the efficacy of forced air warmer (Model # eq-5000) for maintaining core body temperature in patients undergoing laparoscopic surgeries and its effect on postoperative nausea, vomiting and shivering.

Official Title
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The Effect Of Intraoperative Forced Air Warmer Use, On Postoperative Nausea And Vomiting Among Laparoscopic Surgery Patients: A Randomized Controlled Trial

Conditions
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Hypothermia; Anesthesia, Nausea and Vomiting, Postoperative

Intervention / Treatment
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* Device: Bair hugger and Forces air warmer


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients undergoing laparoscopic surgeries (Hernia Repair, Cholecystectomy, Appendectomy, Hysterectomy) ASA Category I and II as per American Society of Anaesthesiologist Classification. BMI< 35 kg/m2 Duration of surgery >1 hour and <3 hours Patients who consent their participation Exclusion Criteria: Temperature >37.5oC or <35oC, Chronic kidney disease Heart failure ASA Category 3&4 (American Society of Anaesthesiologist Classification) Patients will be withdrawn from the group if their laparoscopy is converted to open surgery

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: 2 groups will be made - One group will be interventional and the Other will be the Control group
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: FAW and Bair Hugger Group<br>Group B, the intervention group (with FAW and Bair Hugger). | Device: Bair hugger and Forces air warmer<br>* The EQUATOR™ (EQ-5000) air-warmer is a convective warmer, with the average and maximum Contact Surface Temperatures of 39℃ & 44℃ Respectively. Temperature on this device can be set at 36℃ , 40℃ , 44℃. The 3M™ Bair Hugger ™ (SW-2003) upper body blanket is used to warm the body from head till the xiphisternum<br>|
| No Intervention: Control group<br>Group A, the control group (No FAW or Bair Hugger) | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Post Operative Nausea Vomiting Scale | The scores of 0-3 will determine severity on the Post-operative nausea and vomiting scale. 0 - No nausea , No vomiting - Nausea present , No Vomiting - Nausea present , Vomiting present - Vomiting >2 episodes within 30 minutes | Day 1 | 
| Bedside Shivering Assessment Scale (BSAS) | The scores of 0-3 will determine severity on Shivering 0 -(none) No shivering is detected on palpation of masseter, Neck, or chest muscles -(mild) Shivering localized to Neck and thorax only -(moderate) Shivering involves gross movement of the upper extremities( in addition to neck and thorax) -(severe) Shivering involves gross movements of the trunk and upper and lower extremities | Day 1 |