An artificial heart is a medical device designed to replace or assist the heart’s blood-pumping function, primarily used in patients with end-stage heart failure to compensate for impaired cardiac contractility and pumping capacity. It helps maintain normal systemic circulation and sustain vital bodily functions. Patients experiencing refractory heart failure or recurrent symptoms such as chest tightness and shortness of breath should seek timely medical evaluation.

There is no fixed service life for a cardiac stent after implantation; a qualified stent can remain in the blood vessel long-term and continue to function effectively. The actual longevity of a stent primarily depends on individual factors such as diet, lifestyle, and control of underlying medical conditions—most patients can maintain stent functionality for several decades. If symptoms such as recurrent chest tightness or chest pain occur, prompt medical evaluation and follow-up are essential.

Before a myocardial infarction occurs, the body may send warning signals, including chest tightness or pain, discomfort radiating to the shoulders and back, shortness of breath, unexplained fatigue, and gastrointestinal disturbances. Many of these symptoms appear intermittently and may temporarily subside with rest, making them easy to overlook. If persistent chest pain, profuse sweating, or other similar symptoms occur, prompt medical evaluation and treatment at a hospital are strongly recommended.

Early symptoms of coronary heart disease—such as chest tightness after physical activity, vague upper abdominal pain, discomfort in the shoulders or back, shortness of breath, and unexplained fatigue—are often overlooked. These symptoms are typically mild and usually subside with rest, leading many to mistake them for ordinary fatigue or gastrointestinal issues. However, if persistent chest pain, cold sweats, or similar symptoms occur, prompt medical evaluation and treatment at a hospital are strongly recommended.

Hypotension does not always require pharmacological treatment. Asymptomatic hypotension can often be improved through lifestyle modifications. However, for hypotension accompanied by symptoms such as dizziness, transient visual dimming (amaurosis), fatigue, or syncope, it is essential to evaluate the underlying cause and select an appropriate management strategy accordingly. Frequent dizziness or unsteadiness upon standing warrants prompt medical evaluation.

Individuals with hypertension should pay attention to dietary control, regularly monitor their blood pressure, maintain moderate physical activity, stabilize their emotional state, and take prescribed medications consistently. Comprehensive management in these areas helps maintain stable blood pressure levels and reduces the risk of various complications. If symptoms such as severe headache or blurred vision occur, prompt medical evaluation and treatment at a hospital are recommended.

Myocardial ischemia may cause symptoms such as chest discomfort, radiating pain, abnormal respiration, generalized fatigue, and arrhythmias. Clinical manifestations vary among different individuals; some patients experience only mild symptoms, which may easily be overlooked. If persistent chest pain, profuse sweating, or other concerning symptoms occur, prompt medical evaluation and treatment at a hospital are strongly recommended.

Myocardial ischemia is a relatively serious cardiovascular condition—a pathological state caused by inadequate blood supply and oxygenation to the heart muscle, most commonly resulting from coronary artery stenosis. Mild cases may resolve transiently; however, if the condition progresses, it can trigger angina pectoris or myocardial infarction, endangering life. Frequent chest tightness or a sensation of pressure or discomfort in the chest warrants prompt medical evaluation.

Individuals with implanted cardiac pacemakers may resume normal driving once their condition has stabilized—provided they experience no symptoms such as arrhythmia, chest tightness, or fatigue. Routine short-distance driving does not interfere with device function or cardiac status. However, driving should be avoided if the condition remains unstable or during the postoperative recovery period. Should palpitations or dizziness occur while driving, prompt medical evaluation is required.

Circumcision can be routinely performed at age 30. There is no strict age limit for circumcision; adults with phimosis may still undergo surgical correction. Timely intervention helps prevent complications such as infection and difficulty with hygiene, thereby safeguarding reproductive health. Recurrent balanoposthitis or urinary obstruction warrants prompt medical evaluation and treatment.