Can a fast heartbeat cause dizziness?

Dec 03, 2022 Source: Cainiu Health

Dr. Tian Hongbo

Introduction

If emotional excitement or intense physical activity causes rapid heartbeat, it may lead to increased myocardial excitability and oxygen consumption, resulting in dizziness. Arrhythmias such as premature beats or atrial fibrillation can also cause tachycardia and reduced stroke volume, leading to insufficient cerebral blood supply and dizziness. Additionally, low blood glucose levels may trigger tachycardia and cerebral hypoxia, which can also cause dizziness. Therefore, an excessively fast heart rate may result in dizziness.

Palpitations may cause dizziness.

Increased heart rate can result from physiological factors such as excessive mental stress, emotional excitement, or intense physical activity. In these cases, myocardial excitation may occur, increasing the body's oxygen consumption and leading to dizziness. Additionally, if patients have conditions such as premature beats or atrial fibrillation, dysfunction of the heart's excitatory and conduction tissues may lead to tachycardia and reduced stroke volume, causing insufficient cerebral blood supply and possibly resulting in dizziness. Moreover, in cases of hypoglycemia, low blood glucose levels can deprive tissues of energy, reflexively stimulating the sympathetic nervous system, causing increased heart rate and cerebral hypoxia, which may also lead to dizziness. Therefore, a rapid heartbeat may cause dizziness.

When symptoms of palpitations and dizziness occur, patients are advised to promptly visit a hospital for appropriate examinations to determine whether the cause is physiological or due to an underlying disease. If caused by a medical condition, timely treatment targeting the underlying cause is recommended to prevent adverse effects on health.

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What should I do if I experience frequent premature heartbeats?

In general, cardiac premature beats refer to premature contractions. Frequent premature contractions may be caused by factors such as emotional fluctuations, excessive fatigue, hyperthyroidism, coronary artery atherosclerotic heart disease, and pulmonary arterial hypertension. Treatment options include general management and medication, under a doctor's guidance. If symptoms occur, prompt medical attention is recommended.

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What causes premature heartbeats accompanied by a mild cough, and what should be done?

In general, cardiac premature beats refer to premature contractions. Premature contractions accompanied by mild coughing may be caused by factors such as excessive fatigue, emotional fluctuations, bronchitis, hyperthyroidism, or pulmonary arterial hypertension. Treatment options include general management and medication, under a doctor's guidance. If symptoms persist, timely medical consultation and relevant examinations are recommended.

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Which Chinese patent medicine treats rapid heartbeat?

Traditional Chinese patent medicines for treating rapid heartbeat include Wenxin Granules, Shensong Yangxin Capsules, Tianwang Buxin Pills, Guipi Pills, and Shengmai Drink. Specific medication use must strictly follow medical advice, with selection based on etiology and symptoms through pattern differentiation. If rapid heartbeat is accompanied by symptoms such as chest pain, dizziness, or shortness of breath, seek immediate medical attention. Main ingredients include Codonopsis root (Dangshen), Polygonatum (Huangjing), etc.