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Left ventricular pacing through coronary sinus tributaries: initial experience.

S K Dwivedi1, R K Saran, A K Rathi

  • 1Department of Cardiology, King George's Medical College, Lucknow.

Indian Heart Journal
|July 18, 2001
PubMed
Summary
This summary is machine-generated.

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Left ventricular pacing via coronary sinus tributaries is feasible and reliable for heart failure patients. Pacing parameters and maturation were comparable to traditional right ventricular pacing.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Devices

Background:

  • Biventricular pacing is a growing treatment for congestive heart failure.
  • Data regarding the safety, feasibility, reliability, and lead maturation of left ventricular pacing are limited.

Purpose of the Study:

  • To evaluate the feasibility, safety, and reliability of temporary left ventricular pacing (LVP) through coronary sinus tributaries.
  • To compare LVP parameters with traditional right ventricular apical pacing (RVP).

Main Methods:

  • Seventeen patients with complete heart block received temporary LVP via left subclavian puncture and coronary sinus cannulation for two weeks.
  • Permanent RVP was performed concurrently.
  • Pacing parameters (threshold, impedance, R wave, slew rate) and Holter monitoring were assessed at implantation and two weeks.

Related Experiment Videos

Main Results:

  • Left ventricular pacing was successful in 11 out of 17 patients (67.7%).
  • Procedure time averaged 56 minutes.
  • No significant differences were observed in pacing parameters between LVP and RVP at implantation or after two weeks.
  • Lead displacement occurred in one patient without pacing loss. Holter monitoring confirmed regular LVP.

Conclusions:

  • Left ventricular pacing through coronary sinus tributaries is a feasible and reliable method.
  • Acute and subacute lead maturation for LVP are similar to RVP.