(CHALLENGES IN ANESTHETIC MANAGEMENT OF PATIENTS WITH SLEEP APNEA SYNDROME (SAS
Moustafa Abd El-Moneim Hussein;
Abstract
Sleep is a state of unconscuousness from which a person can be aroused by sensory or motor stimuli and also may be sponteneously.
Sleep is not homogeneous but vanes within 2 distinct states REM sleep and N-REM sleep.
The physiology of REM and N-REM sleep vanes considerably; during NREM sleep the autonomic nervous system is relatively quiescent and the respiratory rate, blood pressure reach their lowest levels. In contrast, REM sleep is a time of increased autonomic activation, manifested by periodic elevations in the heart rate, respiratory rate and blood pressure.
Clinical studies have defined a group of patients, obese and non-obese, who developed a syndrome characterized by recurrent nocturnal apnea and hypoxia during sleep with potentially serious physiologic consequences that may be presenting symptoms of patients starting by a snoring, excessive daytime sleepiness, bad memory, and end by life threatening cardiorespiratory failure and fatal arrhythmias.
Obstructive sleep apnea is defined as the cessation of airfow at the nostrils and mouth for at least 10 seconds in the presence of continued inspiratory effort. In serious severe cases, apnea periods are repeated from 30 to 100 times per hour in the night sleep.
Sleep is not homogeneous but vanes within 2 distinct states REM sleep and N-REM sleep.
The physiology of REM and N-REM sleep vanes considerably; during NREM sleep the autonomic nervous system is relatively quiescent and the respiratory rate, blood pressure reach their lowest levels. In contrast, REM sleep is a time of increased autonomic activation, manifested by periodic elevations in the heart rate, respiratory rate and blood pressure.
Clinical studies have defined a group of patients, obese and non-obese, who developed a syndrome characterized by recurrent nocturnal apnea and hypoxia during sleep with potentially serious physiologic consequences that may be presenting symptoms of patients starting by a snoring, excessive daytime sleepiness, bad memory, and end by life threatening cardiorespiratory failure and fatal arrhythmias.
Obstructive sleep apnea is defined as the cessation of airfow at the nostrils and mouth for at least 10 seconds in the presence of continued inspiratory effort. In serious severe cases, apnea periods are repeated from 30 to 100 times per hour in the night sleep.
Other data
| Title | (CHALLENGES IN ANESTHETIC MANAGEMENT OF PATIENTS WITH SLEEP APNEA SYNDROME (SAS | Other Titles | التحديات والصعوبات فى تخدير مرضى متلازمة توقف التنفس أثناء النوم | Authors | Moustafa Abd El-Moneim Hussein | Issue Date | 2000 |
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