Cardiac tremor is a slight tremor felt in the palm of the hand when palpating the heart, also known as cat asthma. It is a characteristic sign of organic cardiovascular disease. It is more common in heart valve stenosis and some congenital heart diseases. The occurrence of tremor is caused by the blood flowing through the narrow caliber or in an abnormal direction to form a vortex, which causes the valve, blood vessel or heart wall vibration to be transmitted to the chest wall.
Cardiac tremor
Cardiac tremor is a slight tremor felt in the palm of the hand when palpating the heart. The occurrence of tremor is caused by the blood flowing through the narrow caliber or in an abnormal direction to form a vortex, which causes the valve, blood vessel or heart wall vibration to be transmitted to the chest wall.
Clinical significance of cardiac tremor
period | Part | Clinical significance |
Systole | 2nd intercostal space, right margin of sternum | Aortic stenosis |
Ranch | Left intercostal space 2 | Pulmonary stenosis |
Ranch | Left margin of sternum 3.4 intercostal | Ventricular septal defect |
Diastole | Apex | Mitral stenosis |
Continuity | Second intercostal space on left margin of sternum and its vicinity | Patent ductus arteriosus |
