Source: Annual Congress 2011 - Obstructive sleep apnoea in children and adults
Disease area: Sleep and breathing disorders

Abstract

Introduction: Sleep apnea-hypopnea syndrome (SAHS) prevalence increases with age, but very few data are available on this population.
Aim: To describe the clinical features, survival and tolerance to cPAP treatment of aged patients.
Methods: Observational, concurrently study performed during ten years including patients with SAHS evaluated in our Sleep Disorders Unit (SDU) at the age of 80 or older. Failure of treatment was defined when cPAP use was below 3.5 hours per day. Kaplan Meier and Log rank tests were performed for the survival analysis.
Results: 1.8% (144/7989) of patients were at least 80 years old when were studied in our SDU. There were 72 women (50%). The patients characteristics expressed by mean and standard deviation were, age: 82 (1.7), body mass index: 33 (4.3) Epworth test: 12.5 (5.3), neck circumference 41.2 (9). The 93% (135/144) of the patients were diagnosed of SAHS. 57% (83/144) of the patients started treatment with cPAP. 28/83 (34%) of them used it less than 3.5 hours. The survival analysis results are listed in the table beneath:

Use of cPAP

Use of cPAP	Mean Age (SD)	Median survival (months)	Probability of survival in 10 years	p (Log rank)
<3.5 hours (n=28)	81.8 (1.9)	43 (CI 95%: 35-50)	0%	0.008
> 3.5 hours (n=55)	81.2 (1.5)	median not reached	69%

Conclusion: Although the percentage of aged patients is low compared with the whole population, those who fulfil correct treatment with cPAP seem to have a longer survival in 10 years.

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Citations should be made in the following way:
R. Alonso Moralejo, S. de la Torre Carazo, T. Diaz Cambriles, J. Muñoz Mendez, M. J. Diaz de Atauri, A. Lopez Encuentra (Madrid, Spain). cPAP compliance and survival in elderly and sleep apnoea patients. Eur Respir J 2011; 38: Suppl. 55, 3244

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