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All Journal International Journal of Cardiovascular Practice
Mohammad Ali Akbarzadeh
Cardiovascular Research Center,Shahid Beheshti University of Medical Sciences. Tehran
Medicine & Pharmacology

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Syncope during pregnancy in a patient with permanent cardiac pacemaker, due to increased pacing threshold. Mohammad Ali Akbarzadeh; Morteza Safi; Isa Khaheshi; Negar Bahrololoumi Bafruee
International Journal of Cardiovascular Practice Vol. 1 No. 2 (2016)
Publisher : Publisher: Shahid Beheshti University of Medical Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21859/ijcp-010207

Abstract

A 22-year-old pregnant woman referred with syncope due to pacemaker malfunction. During the second trimester of pregnancy, the right ventricular (RV) lead pacing threshold increased and led to early generator depletion. We believe that this might happen due to lead micro-dislodgement or less probably effect of hormonal changes during pregnancy on electrode-myocardium interface.
Venous Obstruction Following Pacemaker or Implantable Cardioverter-Defibrillator Implantation, Mini Review Mohammad Ali Akbarzadeh
International Journal of Cardiovascular Practice Vol. 1 No. 2 (2016)
Publisher : Publisher: Shahid Beheshti University of Medical Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20286/ijcp-010201

Abstract

Venous obstruction is relatively frequent following permanent pacemaker or implantable cardioverter-defibrillator (ICD) implantation. However, most of them are asymptomatic. Although the exact risk factor for this complication is not known, number of leads, heart failure and infection may prone the patient to this complication. The goal standard for detection of vein stenosis is venography; however, ultrasound sonography has an acceptable accuracy. Anticoagulant therapy may be considered for symptomatic patients. For device upgrading, non-functional leads removal, venoplasty and rarely surgical treatment may be indicated.
Co-Authors Isa Khaheshi Morteza Safi Negar Bahrololoumi Bafruee