Document Detail

Accumulation of carbon dioxide under ophthalmic drapes during eye surgery: a comparison of three different drapes.
MedLine Citation:
PMID:  10417465     Owner:  NLM     Status:  MEDLINE    
Carbon dioxide accumulation under ophthalmic drapes is caused by their impaired permeability to exhaled carbon dioxide in spontaneously breathing patients. Three different ophthalmic drapes were examined under clinical conditions. Sixty unpremedicated patients of each gender, aged over 60 years and with an ASA status of I-III undergoing cataract surgery under retrobulbar anaesthesia were included in the study. Patients with known pulmonary diseases were excluded. The patients were divided into three groups of 20 patients each. In all groups, oxygen was insufflated under the drapes at a constant flow of 21.min-1. Carbon dioxide concentration in the inspired air, transcutaneous carbon dioxide pressures, respiratory rate and oxygen saturation by pulse oximetry were measured. Accumulation of carbon dioxide under the drapes, increase of partial pressure of transcutaneous carbon dioxide and hyperventilation were observed in all three groups. An oxygen supply of 21.min-1 prevented hypoxaemia but not hypercapnia. Therefore, producers of ophthalmic drapes are encouraged to look for further ways to increase the carbon dioxide permeability of their drapes with the aim of reducing carbon dioxide accumulation and hyperventilation in spontaneously breathing patients undergoing eye surgery.
A Schlager
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Anaesthesia     Volume:  54     ISSN:  0003-2409     ISO Abbreviation:  Anaesthesia     Publication Date:  1999 Jul 
Date Detail:
Created Date:  1999-09-23     Completed Date:  1999-09-23     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370524     Medline TA:  Anaesthesia     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  690-4     Citation Subset:  AIM; IM    
Department of Anaesthesia and General Intensive Care Medicine, Division of Anaesthesia, The Leopold Franzens University of Innsbruck, Anichstrasse 35, A-6020 Innsbruck, Austria.
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MeSH Terms
Aged, 80 and over
Breath Tests
Carbon Dioxide / analysis*
Hyperventilation / etiology*
Middle Aged
Ophthalmologic Surgical Procedures*
Protective Clothing*
Single-Blind Method
Reg. No./Substance:
124-38-9/Carbon Dioxide
Comment In:
Anaesthesia. 1999 Dec;54(12):1230-1   [PMID:  10712183 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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