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									<identifier>oai:www.peertechzpublications.org:10.17352/2455-1759.000049</identifier>
									<datestamp>2017-07-14</datestamp>
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									<oai_dc:dc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
										<dc:title>
										Effort to engage Magnification Devices in Educational Tonsillectomy - A prospective clinical trial
										</dc:title><dc:creator>K Stelter</dc:creator><dc:creator> SH Kim</dc:creator><dc:creator> L Geerke</dc:creator><dc:creator> U Kisser</dc:creator><dc:creator> C Reichel</dc:creator><dc:creator> S Vögele</dc:creator><dc:creator>F Schrötzlmair</dc:creator><dc:description>&lt;p&gt;&lt;strong&gt;Introduction: &lt;/strong&gt;Most educational hospitals teach the tonsil surgery just with head lights and without
any magnification device. This prospective clinical trial focuses on the additional workload when using a
microscope or magnifying glasses for tonsillectomy.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;&amp;nbsp;Material and methods:&lt;/strong&gt; four surgeons in training with no experience in tonsil surgery operated on
48 patients who underwent elective extra capsular tonsillectomy. Surgery was either performed on one
patient´s side with the naked eyes plus headlamp and on the other side with magnifying glasses or a
microscope. The surgeons were connected to a biofeedback device in order to monitor the breathing
frequency, the heart rate variability and the masseter tone. After every operation surgeons filled out the
NasaTLX questionnaire for evaluating the cognitive workload during surgery.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;&amp;nbsp;Results:&lt;/strong&gt; There was a significant difference in the questioning and the heartrate variability when
using the microscope compared to the naked eyes and the magnifying glasses. However, there was no
statistical difference in mean operation time for all study arms.&amp;nbsp;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion:&lt;/strong&gt; Compared to loupes the mental distress is higher when operating a microscope in the
first eight times. Despite the many advantages of an OR-microscope, this fact may hinder the usability of
such a device in tonsillectomy&lt;/p&gt;</dc:description>
										<dc:publisher>Archives of Otolaryngology and Rhinology - Peertechz Publications</dc:publisher>
										<dc:date>2017-07-14</dc:date>
										<dc:type>Research Article</dc:type>
										<dc:identifier>https://doi.org/10.17352/2455-1759.000049</dc:identifier>
										<dc:language>en</dc:language>
										<dc:rights>Copyright © K Stelter et al.</dc:rights>
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