{"id":2954,"date":"2020-05-26T11:25:07","date_gmt":"2020-05-26T18:25:07","guid":{"rendered":"https:\/\/up.physicaldiagnosispdx.com\/up\/?page_id=2954"},"modified":"2020-12-20T12:20:45","modified_gmt":"2020-12-20T20:20:45","slug":"split-s1","status":"publish","type":"page","link":"https:\/\/up.physicaldiagnosispdx.com\/up\/cardiology-multimedia-new\/split-s1\/","title":{"rendered":"Split S1"},"content":{"rendered":"
[vc_row css=”.vc_custom_1592007182805{background-color: #fff9f9 !important;}”][vc_column][vc_column_text]S1 is generated by closure of the mitral and tricuspid valves. These paired left- and right-sided valves do not close at exactly the same time, but the human ear cannot distinguish sounds that are 0.02-0.03 seconds apart as 2 separate sounds. When conditions further delay tricuspid valve closure, a split S1 can be appreciated. One of the most common causes of delayed tricuspid valve closure is a right bundle branch block.<\/span>
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Patient 1:<\/h1>\n

This patient was admitted to the hospital for a non-cardiac reason and was noted to have a split S1. You can hear two sounds in quick succession followed by a single S2. There was no clear cause of the split S1 in this case.<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1592007142690{background-color: #dcd9dd !important;}”][vc_column width=”1\/2″][vc_column_text]\n

Split S1<\/span><\/strong>
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