Characteristics of sleep-disordered breathing in Japanese patients with acromegaly

  • Kashine Susumu
    Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan
  • Kishida Ken
    Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan
  • Funahashi Tohru
    Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan Department of Metabolism and Atherosclerosis, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan
  • Shimomura Iichiro
    Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan

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Abstract

Sleep-disordered breathing (SDB), especially sleep apnea-hypopnea syndrome (SAS), is often observed in patients with active acromegaly. This complication is a risk factor for cardiovascular disease and associated with increased morbidity and mortality in acromegaly. However there is little information on SDB in Japanese patients with acromegaly. We investigated the prevalence of SDB and association between the severity of SDB and various features and biomarkers in Japanese patients with acromegaly. Twenty-four Japanese patients with active acromegaly underwent overnight cardiorespiratory monitoring, hormonal assays and cephalometric measurements on X-ray. A high prevalence of SDB was detected in acromegaly (87.5%). Log apnea-hypopnea index (AHI) correlated positively with soft palate length / body height (X-ray) (r=0.44, p=0.043), but not with log growth hormone levels and insulin-like growth factor type-1 standard deviation scores, size of pituitary adenoma, disease duration, body mass index, waist circumference, estimated visceral fat area, heel pad thickness / height, tongue thickness/ height, or oropharyngeal dimension/ height. In conclusion, our study demonstrated a high prevalence of SDB in Japanese patients with acromegaly, and its severity correlated with soft palate length. Based on the high incidence of SDB identified in the present study, we recommend that all patients with acromegaly are routinely screened for SDB for early diagnosis and treatment.

Journal

  • Endocrine Journal

    Endocrine Journal 59 (1), 31-38, 2012

    The Japan Endocrine Society

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