Traube Dual Tone

Traube double tone is named after the German physician Ludwig Traube (1818-1876). This symptom is a split in the first heart sound, which occurs with aortic valve stenosis.

When auscultating the heart, a first sound with a characteristic double or split sound is heard in the second intercostal space to the left of the sternum. This occurs due to a delay in the closure of the aortic valve leaflets. First, the sound of the mitral valve closing is heard, and then, with a short delay, the aortic valve closes, which creates the effect of bifurcation of the first sound.

Traube double tone is an important diagnostic sign of aortic stenosis. Usually this symptom appears in the later stages of the disease, when the degree of narrowing is already significant. Differential diagnosis is carried out with other causes of bifurcation of the first sound, such as ventricular septal defect, prolongation of the PQ interval on the ECG.

Thus, Traube double tone is a classic auscultatory sign that allows one to suspect aortic stenosis in a patient. Its presence requires additional examination and, if the diagnosis is confirmed, adequate treatment of this life-threatening disease.

**Traube Double Tone**.

**Synonyms:** Dualistic Traube noise, double Traube noise. Secondary Traube vibration Secondary Traube lightning discharges Traube nitroglycerin pulse or Traube double tones

Every medical worker, and not only, knows this unusual phenomenon... They also know the “cure” for it. In any case, you can often hear about the need to take double breaths when inhaling quickly or exhale with one breath: short and deep without a subsequent inhalation. Some researchers claim that these recommendations can eliminate the feeling of weakness and