Vocal fremitus

Under a fremitus or short fremitus (from the Latin for showers, noise or muffled noise) refers to the slight vibration that you can feel in different situations while speaking through the original placed on the chest of the patient's hand (fremitus). To do this, the patient says words with low vowels in a deep voice (“ninety-nine”) during the exam while the doctor places his hands on the patient's chest or back.

It is based on the principle that low frequencies are filtered out by air-containing alveoli (alveoli), whereas pathological infiltrations (tissue densification due to e.g. water retention in e.g. pneumonia) are transmitted more intensely.

Increased vocal fremitus occurs with dense lung tissue ( infiltration ), e.g. B. in pneumonia . The voice fremitus is weakened in atelectasis or a pleural rind . It is greatly weakened or eliminated in the case of a pleural effusion or a pneumothorax .

See also

• Bronchophony

literature

• Klaus Holldack, Klaus Gahl: Auscultation and percussion. Inspection and palpation. Thieme, Stuttgart 1955; 10th, revised edition ibid 1986, ISBN 3-13-352410-0 , pp. 66, 88, 91, 95 and 97 f.

Individual evidence

1. ^ K. Holldack: Textbook of auscultation and percussion. Georg Thieme Verlag, Stuttgart 1965.