Heart failure. Heart rate 45. Is it dangerous?

Whether a heart rate of 45 beats/min is dangerous depends on the specific circumstances of the patient and cannot be generalized. Generally speaking, no discomfort and normal heart function usually do not require special treatment; if there is discomfort or heart disease, there may be danger and it is necessary to seek medical attention promptly. Whether a heart rate of 45 beats/min is dangerous depends on the specific circumstances of the patient and cannot be generalized. Generally speaking, normal heart rate is 60~100 beats/min, less than 60 beats/min is called sinus bradycardia. If the patient's heart rate is 45 beats/min, but there is no discomfort, and the heart function is normal, usually no special treatment is needed, regular reexamination can be done. However, if the patient's heart rate is 45 beats/min, accompanied by dizziness, fatigue, amaurosis, syncope and other symptoms, or suffering from heart diseases, such as coronary heart disease, cardiomyopathy, myocarditis, etc., then heart rate 45 beats/min may lead to danger, need to seek medical treatment in time, relevant examination and treatment. In addition, some drugs, such as beta blockers and calcium channel blockers, may also slow the heart rate. If the patient is taking these drugs, the heart rate is 45 beats per minute, and symptoms occur, it is necessary to inform the doctor promptly. The doctor may adjust the dosage of the drug or change other drugs. In short, heart rate 45 beats/min is dangerous, need to consider the patient's age, symptoms, heart function and other factors. If the patient has doubts about their heart rate, should seek medical attention in time, for detailed examination and evaluation, in order to take appropriate treatment measures.