Comparative Evaluation of Oxygen Saturation Using Conventional Versus Specially Designed Surgical Drape In Ophthalmic Surgery
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2019, Vol 4, Issue 8
Abstract
Aims: The present study was conducted on 200 patients of ASA grade I-III of either sex scheduled for cataract surgery under local anaesthesia (peribulbar block and retrobulbar block), selected in a randomized single blinded manner. Materials and Methods: Pulseoximetry reading of O2 saturation were recorded in patients Preoperatively after patients have received usual medications; After local anaesthesia (peribulbar and retrobulbar block); After patients’s head was covered with ophthalmic drape; During surgery (at, 3, 6, 9, 12, 15 mins. And then at duration of 5 mins. Interval); Postoperatively for 3 mins. After surgery. Patients comprised of 5 group 1. Control group or Group C- patients were allowed to breathe room air under the ophthalmic drape throughout the whole surgical procedure. 2. Group I – 2 L O2/min. insufflated in ambient air under the drape. 3. Group II- Patients received 2 L O2/min. through nasalcatheter. 4. Group III – patients received 2 L O2/min. through nasal prongs. 5. Group IV – A specially designed drape was used allowing the patients to breathe freely the room air. Results: Mean SpO2 marginally increases just after putting the drapes. The mean SpO2 decreases during the course of surgery when conventional drapes are used, O2 supplementation in any form is able to increase mean SPO2, a flow of 2 L/min of O2 via nasal prongs appears to be a grood method. The specially designed drapes used by us also appear to be a good and reliable alternative to the conventional drapes in which SPO2 is well maintained throughout the course of surgery without supplementation of extra oxygen. Conclusion: We recommend these specially designed drapes to be routinely used for all types of eye surgery done under LA.
Authors and Affiliations
Dr Manmohan Jindal
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