hereditary disease obesity-hypoventilation syndrome https://www.malacards.org/card/obesity_hypoventilation_syndrome SCTID:190966007 OMIM:257500 EFO:1001382 UMLS:C0031880 Hypoventilation syndrome in very obese persons with excessive adipose tissue around the abdomen and diaphragm is characterized by diminished to absent ventilatory chemoresponsiveness; chronic hypoxia; hypercapnia; polycythemia; and long periods of sleep during day and night (hypersomnolence). It is a condition often related to obstructive sleep apnea but can occur separately. NANDO:1200752 MESH:D010845 ICD9:786.09 Pickwickian syndrome MEDGEN:18472 obesity-hypoventilation syndrome MONDO:0009763