Monday, August 15, 2011

Definition of Obstructive Sleep Apnea (OSA)

Definition of Obstructive Sleep Apnea (OSA), Snoring is the sound vibrations that arise during sleep produced especially time breathing and is caused by the vibration of the soft palate (palate mole) and the pillars which restrict cavity oropharynx (the middle of the pharynx). Snoring indicates obstruction (blockage) in the partial upper airway, which is derived from the business channel the air to pass through the narrowed or blocked.

Definition of Obstructive Sleep Apnea (OSA), Snoring can be a symptom of Obstructive Sleep Apnea (OSA) or cessation of breathing during sleep, so it can be life threatening. OSA was defined as cessation of respiratory airflow for 10 seconds-45 seconds, caused by airway obstruction. OSA is characterized by the collapse of the system & upper airway obstruction that occurred during sleep. Episodes of recurrent obstruction associated with a decrease in oxyhemoglobin saturation and Microarrousal - fragmented sleep.

Snoring and OSA encountered in adult men, adult women and children. Based on the results of studies in Indonesia, the comparison with Snoring and OSA men and women is 7: 1. The prevalence of OSA patients in the USA, for ages above 40 years was 45% men and 10-15% are women, while for ages under 40 years is 60% men, 40% women.


Pathophysiology of sleep normal
Normally occur during sleep:

Decreased pharyngeal muscle tone
Air channels narrows
Increased breathing resistance - the inspiration pressure must be increased - increased breathing effort - an increase of negative pressure intratorakal

Pathophysiology of OSA
If negative pressure is greater than intratorakal abduktor muscular strength and pharyngeal dilator:

collapse the airway is not rigid: the pharynx, and hypopharynx velofaring
occurs snoring (vibration of airway collapse)
partial or total obstruction (no air can pass through the respiratory collapse) - hipopnea & apnea.

As a result of OSA

Sleep disorders
Sleepy during the day
Morning headaches
Irritability, weakness
Work productivity is declining
Could an accident
Memory decline
Intellectual ability decreases
Sexual Problems
Depression

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