OBSTRUCTIVE SLEEP APNOEA
People with obstructive sleep apnoea (OSA) have disrupted sleep and low blood oxygen levels. When obstructive sleep apnoea occurs, the tongue is sucked against the back of the throat. This blocks the upper airway and airflow stops. When the oxygen level in the brain becomes low enough, the sleeper partially awakens, the obstruction in the throat clears, and the flow of air starts again, usually with a loud gasp.
Repeated cycles of decreased oxygenation lead to very serious cardiovascular problems. Additionally, these individuals suffer from excessive daytime sleepiness, depression, and loss of concentration.
Some patients have obstructions that are less severe called Upper Airway Resistance Syndrome (UARS). In either case, the individuals suffer many of the same symptoms.
The first step in treatment resides in recognition of the symptoms and seeking appropriate consultation. Dr Mark Meyer offer consultation and treatment options.
In addition to a detailed history, Dr Mark Meyer will assess the anatomic relationships in the maxillofacial region. With cephalometric (skull x-ray) analysis, Dr Mark Meyer can ascertain the level of obstruction. Sometimes a naso-pharyngeal exam is done with a flexible fiber-optic camera by an ENT surgeon. To confirm the amount of cardiovascular compromise and decreased oxygenation levels, a sleep study may be recommended to monitor an individual overnight.
There are several treatment options available. An initial treatment may consist of using a nasal CPAP machine that delivers pressurized oxygen through a nasal mask to limit obstruction at night. One of the surgical options is an uvulo-palato-pharyngo-plasty (UPPP), which is performed in the back of the soft palate and throat by ENT surgeons. A similar procedure is sometimes done with the assistance of a laser and is called a laser assisted uvulo-palato-plasty (LAUPP). In other cases, a radio-frequency probe is utilized to tighten the soft palate.
In more complex cases, the bones of the upper and lower jaw may be repositioned to increase the size of the airway (orthognathic surgery). This procedure is done in the hospital under general anaesthesia and requires a two to four day overnight stay in the hospital. OSA is a very serious condition that needs careful attention and treatment.