Medicina Intensiva  (English Edition) Medicina Intensiva  (English Edition)
Med Intensiva 2018;42:69 - Vol. 42 Num.1 DOI: 10.1016/j.medine.2016.05.006
Images in Intensive Medicine
Central bronchial reflex finding in pulmonary infarct
Hallazgo de reflejo central bronquial en el infarto pulmonar
R. Blancas, , D. Ballesteros-Ortega, â. Martínez-González
Servicio de Medicina Intensiva, Hospital Universitario del Tajo, Universidad Alfonso X El Sabio, Spain

Central bronchial reflex is a sign of pulmonary infarction explored by pulmonary ultrasound. This finding appears in late pulmonary infarction as an expression of bronchial constriction and compression due to surrounding edema and pulmonary bleeding.

We present a case of massive pulmonary embolism with pulmonary infarction. The patient was on mechanical ventilation due to right heart failure and severe hypoxemia. Pulmonary CT showed in the lung parenchyma an area of triangular morphology in peripheral location with increased density and frosted glass appearance compatible with pulmonary infarction on the left upper lobe (Fig. 1, Panel A, arrow). Over the same location, central bronchial reflex is seen as an hyperechoic structure surrounded by hypoechoic tissue on ultrasound exam. Bronchus can be identified by pulsed-Doppler, showing the flow of gas insufflated by ventilator (Fig. 1, Panel B).

Figure 1.

This work has been done without any funding.

Conflicts of interest

The authors declare no conflict of interest.

Corresponding author. (R. Blancas
Copyright © 2016. Elsevier España, S.L.U. and SEMICYUC
Med Intensiva 2018;42:69 - Vol. 42 Num.1 DOI: 10.1016/j.medine.2016.05.006
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