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      Atrial Standstill: a Rare Case

      case-report

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          Abstract

          We introduce a 32-year-old man who was evaluated for a dizziness and headache of unknown origin for at least two months and was referred to our center after ECG findings. He was finally diagnosed as a case of idiopathic, familial, diffuse, persistent atrial standstill, which is a rare arrhythmogenic condition characterized by the absence of electrical and mechanical activity in the atria. He successfully received a single-chamber permanent pacemaker.

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          Persistent right atrial standstill.

          An asymptomatic patient with cardiomegaly caused by isolated right atrial standstill is reported. The right atrium showed no evidence of contraction on pressure records or angiographically, while the left atrium functioned normally.
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            Electroanatomical mapping in partial atrial standstill for visualization of atrial viability and a suitable pacing site.

            Partial atrial standstill is characterized by the failure of atrial activity either spontaneously or in response to electrical stimulation in restricted site of atria. In this case with bradycardia, atrial standstill was restricted to the lateral and posterior right atrium. The markedly prolonged intraatrial conduction delay was observed in the superior to septal region of the right atrium. The electroanatomical mapping was successfully utilized to estimate atrial activity and to find a suitable site for atrial lead placement. The electroanatomical mapping may become an innovated strategy to estimate atrial electrical status in partial atrial standstill.
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              Author and article information

              Journal
              J Tehran Heart Cent
              J Tehran Heart Cent
              JTHC
              The Journal of Tehran Heart Center
              Tehran University of Medical Sciences
              1735-5370
              2008-2371
              Summer 2011
              2011
              31 August 2011
              : 6
              : 3
              : 152-154
              Affiliations
              Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.
              Author notes
              [* ] Corresponding Author: Ahmad Yaminisharif, Associate Professor of Cardiology, Department of Electrophysiology, Tehran University of Medical Sciences, Tehran Heart Center, North Kargar Street, Tehran, Iran. 1411713138. Tel: +98 21 88029256. Fax: +98 21 88029702. E-mail: Yaminish@ 123456tums.ac.ir .
              Article
              jthc-6-152
              3466890
              23074623
              435b9aa3-b490-4c83-afcc-a513546b1597
              Copyright © Tehran Heart Center, Tehran University of Medical Sciences

              This is an open-access article distributed under the terms of the Creative Commons Attribution NonCommercial 3.0 License (CC BY-NC 3.0), which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.

              History
              : 18 August 2010
              : 11 October 2010
              Categories
              Case Report

              Cardiovascular Medicine
              cardiac,pacemaker,arrhythmia,bradycardia,artificial
              Cardiovascular Medicine
              cardiac, pacemaker, arrhythmia, bradycardia, artificial

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