Ronchois

Ronchois is a type of adventitious (abnormal) lung sound characterized by a low-pitched, continuous snoring or rattling sound. It is often heard during both inspiration and expiration. Ronchi are caused by partial obstruction of the larger airways by secretions, mucus plugs, or other conditions that narrow the airway lumen. The sound originates from the vibration of the airway walls and the turbulent flow of air passing through the narrowed passage.

Ronchi can be distinguished from other adventitious lung sounds such as wheezes (which are higher pitched and often associated with bronchospasm) and crackles (which are discontinuous, popping sounds). Auscultation, the process of listening to the lungs with a stethoscope, is used to identify ronchi.

The presence of ronchi may indicate various underlying medical conditions, including bronchitis, pneumonia, chronic obstructive pulmonary disease (COPD), or aspiration. Treatment typically focuses on addressing the underlying cause and may include medications to thin secretions, bronchodilators to open airways, and postural drainage techniques to help clear mucus. Coughing can sometimes clear the secretions causing ronchi, resulting in a temporary or permanent resolution of the sound. Persistent or worsening ronchi should be evaluated by a healthcare professional.