During
the changing seasons, when temperatures fluctuate greatly, colds enter their
peak season. Many people experience discomforts such as fever, general fatigue,
and sore throat, but they habitually treat these as ordinary colds and believe
that they can recover without special treatment by just enduring it for a few
days.
It is important to be aware that the early symptoms of viral myocarditis are highly similar to those of a common cold, making it easy to confuse and overlook. This disease can silently erode myocardial cells. If not detected and treated promptly, the condition may progress and lead to heart failure, which can even pose a threat to life in severe cases. On the other hand, fulminant myocarditis develops rapidly and progresses swiftly, significantly increasing the risk factor.
Lin Xiaoming, director of the Department of Cardiovascular Medicine at Hainan Chengmei Hospital, reminds that people who continue to experience chest tightness, palpitations, and shortness of breath after a cold should seek medical examination in a timely manner to rule out the risk of myocardial damage.
"Cold" is actually myocarditis, and the virus is the culprit
According to Director Lin Xiaoming, viral myocarditis is a myocardial inflammation caused by viral infection, with Coxsackie virus, influenza virus, echovirus, etc. being common "culprits". After these viruses invade the human body, they initially cause symptoms almost identical to those of a cold, which is highly deceptive.
"Many patients have experienced colds or diarrhea 1-3 weeks before the onset of their illness, and then developed symptoms such as fever, sore throat, cough, muscle soreness, and fatigue. Most of them would take cold medicine on their own, never thinking that it could damage their heart," said Director Lin Xiaoming. Common colds usually improve within a week, while the "cold symptoms" of myocarditis may persist or worsen after improvement.
Director Lin Xiaoming emphasized that fulminant myocarditis is the most severe type of viral myocarditis, characterized by rapid onset, rapid progression, and an extremely high mortality rate, which can reach 70%-80%. This disease tends to affect young adults and children under the age of 40. Staying up late, excessive exertion, and strenuous exercise leading to decreased immunity are important predisposing factors. "Young people who insist on carrying on despite a cold and engaging in sports with an illness are common causes of fulminant myocarditis, and such cases are not uncommon in clinical practice."
When these signals appear, be alert to the heart's "emergency call"
"The danger of myocarditis lies in its difficulty in early identification. By the time obvious cardiac symptoms appear, the condition is often already very serious," Director Lin Xiaoming warned. If three types of signals appear after a cold, it is definitely not an ordinary cold and immediate medical attention is needed to rule out myocarditis.
1. Persistent fatigue, chest tightness, and shortness of breath. After resting for 3-5 days after a cold, one still feels extremely exhausted, and even a little activity can cause palpitations, chest tightness, and shortness of breath. These are typical manifestations of myocardial damage.
2. Palpitations, chest pain, dizziness, and cold sweat. Unexplained rapid, slow, or irregular heartbeat, accompanied by vague or sharp chest pain, dizziness, pale complexion, and cold sweat, indicating severe damage to the cardiac conduction system or myocardial tissue.
3. Lower limb edema and dyspnea. These are signs indicating the progression of the disease to heart failure, manifested as swollen legs, inability to lie flat at night, and feeling suffocated when lying down, indicating a severe decline in the heart's blood-pumping function.
Typical Case
Mr. Zhou, 46 years old, insisted on working overtime and exercising after catching a cold. Five days later, he suddenly fainted and was rushed to the hospital. Upon diagnosis, he was confirmed to have fulminant myocarditis, and at that time, he had already developed cardiogenic shock. Fortunately, he was rescued in time and out of danger. "Such patients initially think it is just a common cold, ignoring the early warning signs of the heart, and almost miss the opportunity for treatment."
Scientific prevention and control, avoiding the trap of "cold and heartache"
"Myocarditis is both preventable and treatable, with the key lying in 'early recognition, early treatment, and emphasis on prevention'," said Director Lin Xiaoming. For mild myocarditis, timely and standardized treatment can lead to self-recovery in most cases within 1-2 weeks; however, fulminant myocarditis requires immediate hospitalization and may even necessitate life support treatments such as ECMO. The earlier intervention is given, the lower the mortality rate.
In terms of treatment, Director Lin Xiaoming explained that the core principles are antiviral therapy, myocardial nutrition, heart failure control, and symptomatic treatment. Patients need to strictly rest in bed, avoid fatigue, and reduce the burden on the heart. At the same time, antiviral drugs and myocardial nutrition drugs are used. Anti-heart failure treatment should be promptly administered in case of heart failure, and malignant arrhythmias require emergency treatment.
In terms of prevention, Director Lin Xiaoming gave three suggestions:
1. Don't hold on to a cold, especially for young people. Ensure adequate sleep, avoid staying up late, strenuous exercise, and heavy physical labor;
2. If you experience discomfort such as chest tightness, palpitations, and fatigue after catching a cold, seek medical attention promptly. Have your myocardial enzymes, electrocardiogram, and echocardiogram checked to rule out myocarditis;
3. Maintain a regular daily routine, consume a balanced diet, and engage in moderate exercise to enhance immunity and reduce the risk of viral infection.
"The heart is the 'engine' of the human body. Don't take myocarditis as a common cold," Director Lin Xiaoming warned. A cold is a trivial matter, but damaging the heart is a serious issue. Be vigilant for early warning signs of heart problems after a cold, so as to maintain heart health.
Expert Introduction
Lin Xiaoming, Chief Physician
Director of Cardiovascular Medicine
Medical expertise
Skilled in the diagnosis and management of common and complex cardiovascular diseases, emergency treatment of critical illnesses, conventional coronary heart disease intervention techniques, emergency coronary angiography and stent implantation for acute myocardial infarction, and implantation of cardiac pacemakers.