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Boletín médico del Hospital Infantil de México

versión impresa ISSN 1665-1146


HERRERA-FLORES, Edwin Hernando et al. Congenital central alveolar hypoventilation syndrome. Bol. Med. Hosp. Infant. Mex. [online]. 2015, vol.72, n.4, pp.262-270. ISSN 1665-1146.


Congenital central alveolar hypoventilation syndrome (CCAHS) is a rare sleep-related breathing disorder. Although increasingly frequently diagnosed in sleep clinics and pediatric pulmonology services, its epidemiology is not known. There are about 300 reported cases reported in the literature with an incidence of 1 case per 200,000 live births. CCAHS is characterized by alveolar hypoventilation that occurs or worsens during sleep and is secondary to a reduction/absence of the ventilatory response to hypercapnia and/or hypoxemia. In 90% of the cases it is due to a PARM-type mutation of the PHOX2B gene. Treatment includes mechanical ventilation and diaphragmatic pacemaker. If therapy is not initiated promptly the patient can evolve to chronic respiratory failure, pulmonary hypertension, cor pulmonale and death.

Case reports:

In this paper we present three cases of CCAHS diagnosed, treated and followed up at the Sleep Disorders Clinic of the National Institute of Respiratory Diseases in Mexico.


Early diagnosis is important to initiate ventilatory support so as to prevent any complications and to reduce mortality.

Palabras llave : Congenital central alveolar hypoventilation syndrome; Pediatric sleep-related breathing disorder; PHOX2B gene.

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