Effect of Acetazolamide on Optic Nerve Sheath Diameter in Laparoscopic Donor Nephrectomies

Study Overview
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Brief Summary
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The purpose of the trial is to study the effect of acetazolamide administered via Ryle's tube on optic nerve sheath diameter in laparoscopic live donor nephrectomy patients.

Detailed Description
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this study was done on 40 American Society of Anaesthesiologist(ASA) I & II live donors of either sex in adult age group undergoing laparoscopic live donor nephrectomy. After getting approval from institutes ethical committee and written informed consent, Donors were randomly allocated to either of two group. Anaesthesia was induced with injection morphine 0.1 mg/kg, injection propofol 1-2 mg/kg and vecuronium 0.1 mg/kg. Maintenance of anaesthesia was done with isoflurane and oxygen. After induction donors were placed into modified flank position with left side upward. Donors in Group A received Acetazolamide 5 mg/kg via orogastric tube soon after the induction of anaesthesia. Group S received saline as a placebo. investigator and subjects were blinded till the statistical analysis. Optic nerve sheath diameter was measured six times during perioperative periods by using high frequency ultrasound probe. Intra operative monitoring was done for Heart rate, Blood Pressure, pulse oximetry(Spo2), End Tidal Carbon Dioxide(ETCO2), Train Of Four(TOF) and Bi spectral index(BIS). Post operatively donors were reversed with injection neostigmine and glycopyrrolate. once return of spontaneous ventilation was well established and patient becomes conscious oriented trachea was extubated and donors were shifted to post anaesthetic care unit(PACU). Postoperatively donors were monitored for Heart rate, Blood Pressure, Spo2, Comfort Score, Visual analog score for incisional site pain and shoulder tip pain, and Post operative nausea vomiting. Rescue analgesia was given to patients having comfort score less than 6. After completion of study Optic nerve sheath diameter, pain scores and comfort scores was compared between both groups.

Official Title
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Effect of Orogastric Acetazolamide on Intraocular Pressure in Laparoscopic Donor Nephrectomies

Conditions
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Intracranial Pressure Increase

Intervention / Treatment
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* Drug: Acetazolamide
* Drug: Normal Saline


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients of either gender 18-60 years of age Hemodynamically stable patients. Exclusion Criteria: Patient's refusal. Ocular Defects/ Wounds /Previous ocular surgery. H/O Hypertension Patients having Double Renal Arteries. Laparoscopic Nephrectomies converted to Open Surgeries

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 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
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Group A - Acetazolamide<br>Acetazolamide 5 mg/kg diluted in 10 ml normal saline through orogastric Ryle's Tube soon after the induction of anaesthesia followed by 10 ml normal saline flush. | Drug: Acetazolamide<br> <br> |
| Placebo Comparator: Group s - Normal saline<br>20 ml normal saline total volume. | Drug: Normal Saline<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Optic nerve sheath diameter being assessed | optic nerve sheath diameter measured during perioperative period | baseline, 5 minutes, 10 minutes, 60 minutes, 120 minutes, 5 minutes post surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Visual analog score for incision site and shoulder pain | visual analog score will be monitored postoperatively | baseline, 30 minutes, 60 minutes, 4 Hours, 12 hours, 24 Hours, 48 hours, 72 Hours. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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optic nerve sheath diameter, acetazolamide