I48.2

Clinical Causes: High blood pressure (hypertension) Coronary artery disease Heart valve disorders Heart failure Previous heart surgery or heart attack Thyroid problems, especially hyperthyroidism Excessive alcohol consumption Lung diseases like chronic obstructive pulmonary disease (COPD) Sleep apnea Chronic kidney disease Certain medications or stimulants

Key Symptoms: Unusual or irregular heartbeat sensations (palpitations) Weakness or fatigue Shortness of breath, especially during physical activity or lying down Dizziness or lightheadedness Chest discomfort or pain Reduced ability to exercise Feeling of chest fluttering Occasional fainting or near-fainting episodes

Diagnosis Path: Diagnosing chronic atrial fibrillation involves a combination of patient history, physical examination, and diagnostic tests. An electrocardiogram (ECG) is the primary tool used to confirm irregular heart rhythms and the absence of regular P waves, which are typical in atrial fibrillation. Continuous monitoring through Holter monitors or event recorders may be employed if the irregularity is intermittent. Blood tests and echocardiography can help identify underlying causes and assess heart function.

Treatment Protocols: Management of chronic atrial fibrillation focuses on controlling heart rhythm and reducing the risk of stroke and other complications. Common approaches include: - **Medications**: Blood thinners (anticoagulants) to prevent blood clots, rate controllers such as beta-blockers or calcium channel blockers to control heart rate, and antiarrhythmic drugs to restore regular rhythm. - **Lifestyle modifications**: Reducing alcohol intake, avoiding stimulants, managing stress, and addressing underlying health conditions like high blood pressure and sleep apnea. - **Procedures**: In some cases, procedures like electrical cardioversion, catheter ablation, or surgical intervention may be considered to restore normal rhythm. - **Regular monitoring**: Continuous follow-up with healthcare providers ensures effective management and adjustment of treatment plans as needed.