Arrhythmias in chronic pulmonary disease

Area of Science:

• Cardiology
• Pulmonology
• Critical Care Medicine

Background:

• Arrhythmias are common complications in severe respiratory disease, with frequencies comparable to acute myocardial infarction.
• Rapid atrial and ventricular rhythms are characteristic, though no single disturbance predominates.
• Acute respiratory failure presents several predisposing factors for arrhythmias.

Purpose of the Study:

• To summarize the causes and management of arrhythmias in patients with severe respiratory disease.
• To highlight the importance of addressing underlying physiological disturbances.

Main Methods:

• Review of clinical presentation and predisposing factors for arrhythmias in respiratory failure.
• Emphasis on careful patient examination to assess the impact of arrhythmias.
• Discussion of therapeutic strategies including supportive care and antiarrhythmic interventions.

Main Results:

• Hypoxemia, abnormal serum pH, and electrolyte imbalances (e.g., low potassium) can induce arrhythmias.
• Certain medications (digitalis, epinephrine, theophylline) can act as myocardial irritants.
• The impact of arrhythmias on ventilation and perfusion varies, with some well-tolerated and others causing significant issues.

Conclusions:

• Management of respiration, correction of acid-base and electrolyte imbalances, and bronchial hygiene are crucial for restoring normal sinus rhythm.
• These foundational measures are essential even when antiarrhythmic drugs or cardioversion are required.
• Addressing the underlying respiratory condition is paramount in managing arrhythmias in this patient population.