Temporary endoepicardial atrioventricular sequential pacing for complete heart block following complex surgery for

Ulhas M Pandurangi1, P J Ruth, Satish C Toal

  • 1Department of Cardiology, Madras Medical Mission, Institute of Cardiovascular Diseases, Mogappair, Chennai. ulhaspandurangi@hotmail.com

Insights

Complete heart block after complex congenital heart surgery can impair cardiac output. Endoepicardial atrioventricular sequential pacing offers a feasible solution for these challenging cases.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Electrophysiology

Background:

  • Complete heart block is a known complication of intracardiac surgery for complex congenital heart disease.
  • Ventricular dysfunction can limit the effectiveness of isolated ventricular pacing in improving cardiac output post-surgery.

Observation:

  • A patient developed complete heart block after complex congenital heart disease repair.
  • The patient exhibited ventricular dysfunction, complicating management.

Findings:

  • Endoepicardial atrioventricular sequential pacing was successfully implemented.
  • This pacing strategy demonstrated feasibility and efficacy in managing postoperative complete heart block with ventricular dysfunction.

Implications:

  • Atrioventricular sequential pacing is a viable option for patients with postoperative complete heart block and ventricular dysfunction.
  • This approach may improve hemodynamic outcomes in complex pediatric cardiac surgery patients.
  • Further studies are warranted to confirm the long-term efficacy and benefits of this pacing technique.

Related Concept Videos

Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
Dysrhythmias VI: Management of Dysrhythmias01:25

Dysrhythmias VI: Management of Dysrhythmias

Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...