The prevalence of syndrome Z (the interaction of obstructive sleep apnoea with the metabolic syndrome) in a teaching hospital in Singapore
| Autor: | Praveen Shankar, Sridhar Venkateswaran |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Male
medicine.medical_specialty Waist Polysomnography Population Polysomnogram Body Mass Index Internal medicine Respiratory disturbance index medicine Prevalence Humans Prospective cohort study education Metabolic Syndrome education.field_of_study Singapore Sleep Apnea Obstructive medicine.diagnostic_test business.industry General Medicine Middle Aged medicine.disease Physical therapy Original Article Female Metabolic syndrome business Body mass index |
| Popis: | Background Syndrome Z describes the interaction of obstructive sleep apnoea (OSA) with the metabolic syndrome. Purpose of study A pilot study to determine the prevalence of syndrome Z in a teaching hospital in Singapore. Methods Patients (age ⩾18 years) recruited for this prospective study had to satisfy three of the following five inclusion criteria: fasting glucose >6.1 mmol/l, blood pressure ⩾130/85 mm Hg, HDL cholesterol 102 cm in men and >88 cm in women. All subjects underwent standard overnight polysomnography. Overnight fasting glucose and lipid levels were measured and baseline anthropometric data recorded. All sleep studies were scored and reported by a sleep physician. OSA was deemed to be present if the respiratory disturbance index (RDI) was ⩾5, with mild, moderate and severe categories classified according to the Chicago criteria. Results There were 24 patients (19 males and five females) of whom 10 were Chinese, eight Malay and five of Indian origin, with one other. Mean age was 48±13.5 years, mean body mass index was 34.9±6.1 kg/m2 and mean waist circumference was 111.3±15.7 cm. 23 (95.8%) of the patients had OSA with a mean RDI of 39.6±22.4 events/h with 15 patients (62.5%) in the severe category. The five patients who fulfilled all five criteria for diagnosis of the metabolic syndrome had severe OSA. Conclusion The prevalence of OSA in our studied population exhibiting the metabolic syndrome is very high. Therefore, a polysomnogram should always be considered for this subset of patients. |
| Databáze: | OpenAIRE |
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