Management of Atrial Fibrillation and Heart Failure
Initial Assessment and Diagnosis
- The clinical presentation with shortness of breath on exertion, orthopnea, and bilateral basal crackles in a patient with known atrial fibrillation suggests acute heart failure with pulmonary congestion 1
- The patient is already on appropriate medications for atrial fibrillation management (digoxin for rate control and apixaban for stroke prevention) 2
Immediate Management
- Administer intravenous loop diuretic (furosemide) at a dose of at least twice the daily home dose (if the patient is already on oral furosemide) 1
- Monitor response to diuretic therapy through assessment of symptoms, fluid status, and urine output 1
Rate Control Management
- For patients with atrial fibrillation and heart failure, digoxin is an appropriate medication for controlling heart rate at rest 2, 3
- If heart rate is not adequately controlled, consider adding a beta-blocker if the patient does not have signs of acute decompensated heart failure 3
- Avoid non-dihydropyridine calcium channel blockers (verapamil, diltiazem) as they may exacerbate hemodynamic compromise in patients with decompensated heart failure 2, 3
Anticoagulation Management
- Continue apixaban for stroke prevention as the patient has a high CHA₂DS₂-VASc score (age ≥75 years and heart failure) 4, 5
Ongoing Management
- Target a resting heart rate <110 bpm (lenient control), with stricter control if symptoms persist 6
- Consider additional heart failure therapies based on ejection fraction assessment:
Follow-up Plan
- Reassess the patient's symptoms, fluid status, and response to therapy daily during hospitalization 1
- Perform laboratory monitoring including electrolytes, renal function, and possibly NT-proBNP 1
- Consider echocardiography to assess cardiac function if not recently performed 4
- Schedule follow-up evaluation within 1-2 weeks after discharge 6