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Transient rise in His-lead threshold due to acute myocardial infarction.
Hall, Robert; Jones, Daniel A; Muthumala, Amal; Weerackody, Roshan; Sohaib, Afzal; Monkhouse, Christopher.
Affiliation
  • Hall R; Barts Heart Centre, West Smithfield, London, England.
  • Jones DA; Barts Heart Centre, West Smithfield, London, England.
  • Muthumala A; Barts Heart Centre, West Smithfield, London, England.
  • Weerackody R; Barts Heart Centre, West Smithfield, London, England.
  • Sohaib A; Barts Heart Centre, West Smithfield, London, England.
  • Monkhouse C; Barts Heart Centre, West Smithfield, London, England.
Pacing Clin Electrophysiol ; 42(6): 754-757, 2019 06.
Article in En | MEDLINE | ID: mdl-30659633
ABSTRACT
An 85-year-old male was admitted to our center with a non-ST elevation myocardial infarction. The patient had a dual-chamber pacemaker in situ with an atrial and His lead. A transient increase in His threshold and loss of nonselective capture occurred at the presentation of right coronary artery infarction, peaking during rotational atherectomy therapy causing loss of capture and complete atrioventricular block. A follow-up interrogation, 2 weeks postrevascularization, showed a return to a normal nonselective capture morphology and threshold measurements. Physicians should be aware of this complication in patients with His leads, particularly those with a history of coronary artery disease.
Subject(s)
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Full text: 1 Database: MEDLINE Main subject: Pacemaker, Artificial / Bundle of His / Atherectomy / Electrodes, Implanted / Non-ST Elevated Myocardial Infarction Limits: Aged80 / Humans / Male Language: En Year: 2019 Type: Article

Full text: 1 Database: MEDLINE Main subject: Pacemaker, Artificial / Bundle of His / Atherectomy / Electrodes, Implanted / Non-ST Elevated Myocardial Infarction Limits: Aged80 / Humans / Male Language: En Year: 2019 Type: Article