Severe obesity (BMI >30) can lead to obesity hypoventilation syndrome (OHS), often associated with obstructive sleep apnea syndrome (OSAS), characterized by low oxygen and high carbon dioxide levels in the blood.
A study over four years involving 62 obese patients with OSAS showed that while both groups had similar demographics and OSAS severity, those with OHS had significantly higher levels of obesity (BMI >40) and more severe blood gas disturbances.
The findings suggest that the degree of obesity is a key factor in developing OHS among patients with OSAS, indicating that while OHS and OSAS can occur together, OHS is a separate condition that is not solely dependent on the severity of OSAS
Pulmonary sequestrations are defined by the presence of a non fonctional pulmonary parenchyma with an abnormal vascularisation. Their incidence ranges from 1.1% to 1.