http://hboevidence.wikis.unsw.edu.au/index.php?action=history&feed=atom&title=Oriani2 2026-10-04T13:58:25Z Revision history for this page on the wiki MediaWiki 1.31.0 http://hboevidence.wikis.unsw.edu.au/index.php?title=Oriani2&diff=181&oldid=prev 2018-05-04T02:11:31Z

<p>Imported from Wikispaces</p> <p><b>New page</b></p><div>&lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 130%;&quot;&gt;'''When performing visual evoked potential studies on the macula, rate of recovery of P100 amplitude after dazzling may be altered following repeated hyperbaric exposures.''' &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Clinical Bottom Line:''' &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;1. Vague findings of unknown significance. &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Appraised by:''' Mike Bennett, Dept. of Diving and Hyperbaric Medicine, Prince of Wales Hospital &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;Sydney; Saturday, 21 August 1999 &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Clinical Scenario:''' A patient receiving hyperbaric oxygen for retinal ischaemic pathology. &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Three-part Question:''' For patients having hyperbaric oxygen therapy for retinal ischaemic pathology, does rate of recovery of a visual evoked potential (VEP) after dazzling usefully indicate any benefit of hyperbaric therapy? &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Search Terms:''' Visual evoked potential, retinal ischaemia &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''The Study:''' &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;Double-blinded randomised controlled trial intention-to-treat probable. &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;Volunteers, men and women. &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Control group''' (N = 8; 8 analysed): One session breathing air at 2.5ATA for 90 minutes. &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Experimental group''' (N = 7; 7 analysed): One session breathing 100% oxygen at 2.5ATA for 90 minutes &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''The Evidence:''' &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 110%;&quot;&gt;'''Non-Event Outcomes Time to outcome Control group HBO group P-value''' &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 110%;&quot;&gt;P100 latency &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 110%;&quot;&gt;and amplitude before and after unchanged unchanged Not given &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 110%;&quot;&gt;Amplitude recovery after ?unchanged ?unchanged Not Sig &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Comments:''' &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;1. No quantitative results given. &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;2. Some subjects had multiple exposures, it is not known how many. It appears from the text it is these patients that may have shown a difference in rate of recovery of P100 amplitude. &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;3. Methodology and results not presented clearly. &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;4. Authors conclusions do not seem to clearly follow from results. &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''Expiry date:''' April 2021&lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;'''References:''' &lt;/span&gt;<br /> &lt;span style=&quot;font-family: Arial,Helvetica,sans-serif; font-size: 120%;&quot;&gt;1. Oriani G, Magni R, Musini A, Meazza D, Brancato R. A new electrophysiological test to assess ophthalmological benefits of hyperbaric therapy. Proceedings of the 10th International Congress on Hyperbaric Medicine, Amsterdam. Best Publishing, Flagstaff, Arizona 1992:104-109.&lt;/span&gt;<br /> <br /> [[File:sumhorsa.gif|center]]<br /> <br /> &lt;span style=&quot;color: #7c00ff; display: block; font-family: arial,helvetica,sans-serif; font-size: 26px; text-align: center;&quot;&gt;'''[[Ophthalmology | BACK]]'''&lt;/span&gt;</div>

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