Family Wiki
Advertisement

Obstruction ventilation apnée sommeil.svg

'דום נשימה בשינה חסימתית' ( 'OSA' ) הוא הסוג הנפוץ ביותר של דום נשימה בשינה והיא נגרמת על ידי חסימות מלאות או חלקיות של דרכי נשימה עליונות . הוא מאופיין על ידי פרקים חוזרים של רדוד או מושהה נשימה במהלך השינה, למרות המאמץ לנשום, ובדרך כלל קשורה עם ירידה [הרוויה [חמצן | רוויון החמצן בדם]]. . פרקים אלו של הנשימה ירד, שנקרא "[דום נשימה []] ים" (פשוטו כמשמעו, "ללא נשימה"), בדרך כלל 20 עד 40 שניות <= שם נ"צ 'AASM2001'> תבנית:לצטט ספר </ ref>

פרט עם OSA הוא לעתים רחוקות מודע קשיי נשימה, אפילו עם התעוררות. היא מוכרת לעתים קרובות כבעיה על ידי אחרים ששומרים הפרט במהלך פרקים או נחשד כי השפעותיו על הגוף. OSA מלווה בדרך כלל עם נחירות. מסוימים משתמשים במונח 'תסמונת דום נשימה בשינה חסימתית' להתייחס OSA אשר קשורה לסימפטומים בשעות היום <שם נ"צ = Barnes2009> תבנית:ספר לצטט </ ref> תבנית:RP סימפטומים יכולים להתקיים במשך שנים או אפילו עשרות שנים ללא זיהוי, במהלכן האישה יכולה להיות מותנה על ישנוניות בשעות היום ו עייפות הקשורים רמות משמעותיות של הפרעות שינה. אנשים שבדרך כלל לישון לבד אינם מודעים בדרך כלל של המצב, ללא מיטה-שותף קבוע להבחין ולגרום להם להיות מודע של הסימפטומים שלהם.

ככל [טונוס השרירים []] של הגוף בדרך כלל מרגיע בזמן השינה, ואת דרכי הנשימה על הגרון מורכבת קירות רקמות רכות, אשר יכול להתמוטט, אין זה מפתיע כי נשימה יכולה להיות מוסתרת בזמן השינה. למרות תואר מאוד מינורי של OSA נחשב בגדר שינה נורמלית, ואנשים רבים חווים אפיזודות של OSA בשלב כלשהו בחיים, אחוז קטן של אנשים יש כרונית, OSA חמור.

אנשים רבים חווים אפיזודות של OSA לתקופה קצרה בלבד. זה יכול להיות התוצאה של זיהום בדרך נשימה עליונות שגורם גודש באף, יחד עם נפיחות של הגרון, או דלקת שקדים שמייצר זמנים שקדים מוגדלים מאוד. ה נגיף אפשטיין-באר, למשל, ידוע כדי להיות מסוגל להגדיל את גודל דרמטי של רקמת הלימפה במהלך זיהום חריף, ו OSA הוא נפוץ למדי במקרים אקוטיים של חמור זיהומיות מחלת הנשיקה. לחשים זמניים של תסמונת OSA עשויים להתרחש גם אצל אנשים שנמצאים תחת השפעה של תרופה (כגון אלכוהול) שעשוי להירגע טון הגוף שלהם בצורה מוגזמת ולהפריע עוררות נורמליות מן מנגנוני שינה.

סימנים ותסמינים[]

הסימנים השכיחים של OSA כוללים ישנוניות בשעות היום לא מוסברת, שינה חסרת מנוחה, ורם נחירות (עם הפסקות של שתיקה ואחריו נשימות). פחות תסמינים שכיחים הם בבוקר כאבי ראש; נדודי שינה; קושי להתרכז; שינויים במצב הרוח כגון עצבנות, חרדה ו דיכאון; שִׁכחָה; עלייה בקצב הלב ו / או [לחץ דם []]; ירד חשק מיני; עלייה במשקל מסיבה לא ברורה; בהשתנה ו / או נוקטוריה; צרבת תכופה או [מחלת ההחזר הוושטי []]; וזעות לילה כבדות.

מבוגרים[]

אצל מבוגרים, הפרט הכי אופייני עם תסמונת OSA סובל השמנה, עם כובד מסוים על הפנים והצוואר. השמנת היתר היא לא תמיד נוכחת עם OSA; למעשה, מספר לא מבוטל של מבוגרים עם מדדי מסת גוף נורמלים (BMIs) פחת טונוס שרירי גרימת דום נשימת קריסה ושינה דרכי נשימה. הגורם לכך אינו מובן היטב. תסמין ההיכר של תסמונת OSA אצל מבוגרים הוא [ישנוני בשעות יום [יתר]]. בדרך כלל, אדם מבוגר או נער עם OSA ארוכת שנים קשות יירדם לפרקי זמן קצרים מאוד במהלך פעילויות בשעות היום כרגיל אם רק תינתן לה ההזדמנות לשבת או לנוח. התנהגות זו עלולה להיות דרמטית למדי, לפעמים המתרחשים במהלך שיחות עם אחרים במפגשים חברתיים.

ה היפוקסיה (בהעדר אספקת חמצן) הקשורים OSA עשוי לגרום לשינויים הנוירונים של ההיפוקמפוס ו [קליפת המוח הקדמית []] נכון. מחקר באמצעות-דימות מוחי חשף ראיות של אטרופיה בהיפוקמפוס אצל אנשים הסובלים OSA. הם מצאו כי יותר מ -25% ממקרי OSA, תוצאות הבעיה הזו בעיות בלתי הפיכות מניפולציה נפשית מידע לא מילולי והן [פונקציות המבצעת []] ו זיכרון עבודה, למרות שנים של אופטימלי רציף חיובי לחץ אוויר (CPAP) טיפול <= שם נ"צ "pmid14751008"> תבנית:לצטט העת </ ref>

אבחון של דום נשימה חסימתי בשינה שכיח יותר באופן משמעותי בקרב אנשים במערכות יחסים, אשר מקבלים התראו על מצבם על ידי הלשנה על ידי שותף השינה שלהם, מאז אנשים עם דום נשימה חסימתי בשינה אינם מודעים בדרך כלל של המצב. יש הסטיגמה הקשורה נחירות, והיא אינה נחשבת תכונה נשית. כתוצאה מכך, נשים נוטות פחות להיאמר על ידי בני זוגן שהם לנחור, או להודות בכך בפני עצמם או רופאים. יתר על כן, CPAP הוא גם נתפס באופן שלילי על ידי הנקבות, ופחות סביר להיות מנוצל עד הסוף שלה בקבוצה זו שגיאת ציטוט: חסר תג </ref> סוגר בשביל תג <ref>

== == פתופיזיולוגיה מחזור השינה / עירות נורמלי אצל מבוגרים מחולק REM (תנועת עיניים מהירה) לישון, ללא רע"מ (NREM) לישון, והתודעה. שנת NREM היא חולקת לשלבי 1, 2 ו -3 שנת NREM. השלב העמוק ביותר (השלב ​​3 של NREM) נדרש עבור האפקטים המשקמים פיזי שינה, וב מראש מתבגר וזו התקופה של שחרור [הורמון גדילה אנושי []]. NREM שלב 2 ו REM, ששלב הם 70% של זמן השינה הכולל של אדם ממוצע, קשורים יותר עם התאוששות ותחזוקה נפשיות. במהלך שנת רע"מ בפרט, טונוס שרירים של הגרון והצוואר, כמו גם הרוב המכריע של כל שרירי השלד, הוא כמעט מוחלש לחלוטין, מה שמאפשר לשון וחיך רך / oropharynx להירגע, ובמקרה של דום נשימה בשינה, כדי לעכב את זרימת האוויר במידה החל אור נחירות כדי להשלים קריסה. במקרים בהם מוגש כתב זרימת האוויר מצטמצם במידה שבה רמות החמצן בדם ליפול, או מאמץ גופני לנשום הוא גדול מדי, מנגנונים נוירולוגיים לעורר בהפסקה פתאומית של שינה, נקרא עוררות נוירולוגיות. arousals אלה לעתים נדירות לגרום להתעוררות מלאה, אך יכול להיות השפעה שלילית משמעותית על איכות משקמת שינה. במקרים משמעותיים של OSA, תוצאה אחת היא [מניעת שינה []] בשל השיבוש וההתאוששות החוזרים של פעילות שינה. הפרעה בשינה זה בשלב 3 (המכונה גם איטי גל לישון), וב שנת רע"מ, יכול להפריע דפוסי צמיחה נורמלית, ריפוי, ו תגובה חיסונית, במיוחד אצל ילדים צעירים מבוגרים. תבנית:ציטטה הצורך

== == אבחון אבחון של OSA מבוססת לעתים קרובות על שילוב של היסטוריה החולה ובדיקות (lab- או מהבית). בדיקות אלה נעים, בסדר יורד של עלות, מורכבות וחוסר קשירה של המטופל (מספר וסוג ערוצי הנתונים שנרשמו), מ polysomnography המלא השתתף המעבדה ( "מחקר לישון") ועד הקלטה בבית חד ערוץ. בארצות הברית, קטגוריות אלה קשורים עם סיווג ביטוח Type I עד IV סוג. שגיאת ציטוט: חסר תג </ref> סוגר בשביל תג <ref>

Individual with OSA are rarely aware of difficulty breathing, even upon awakening. It is often recognized as a problem by others who observe the individual during episodes or is suspected because of its effects on the body. OSA is commonly accompanied with snoring. Some use the term obstructive sleep apnea syndrome to refer to OSA which is associated with symptoms during the daytime.[1]תבנית:Rp Symptoms may be present for years or even decades without identification, during which time the individual may become conditioned to the daytime sleepiness and fatigue associated with significant levels of sleep disturbance. Individuals who generally sleep alone are often unaware of the condition, without a regular bed-partner to notice and make them aware of their symptoms.

As the muscle tone of the body ordinarily relaxes during sleep, and the airway at the throat is composed of walls of soft tissue, which can collapse, it is not surprising that breathing can be obstructed during sleep. Although a very minor degree of OSA is considered to be within the bounds of normal sleep, and many individuals experience episodes of OSA at some point in life, a small percentage of people have chronic, severe OSA.

Many people experience episodes of OSA for only a short period. This can be the result of an upper respiratory infection that causes nasal congestion, along with swelling of the throat, or tonsillitis that temporarily produces very enlarged tonsils. The Epstein-Barr virus, for example, is known to be able to dramatically increase the size of lymphoid tissue during acute infection, and OSA is fairly common in acute cases of severe infectious mononucleosis. Temporary spells of OSA syndrome may also occur in individuals who are under the influence of a drug (such as alcohol) that may relax their body tone excessively and interfere with normal arousal from sleep mechanisms.

Signs and symptoms[]

Common signs of OSA include unexplained daytime sleepiness, restless sleep, and loud snoring (with periods of silence followed by gasps). Less common symptoms are morning headaches; insomnia; trouble concentrating; mood changes such as irritability, anxiety and depression; forgetfulness; increased heart rate and/or blood pressure; decreased sex drive; unexplained weight gain; increased urination and/or nocturia; frequent heartburn or gastroesophageal reflux disease; and heavy night sweats.

Adults[]

In adults, the most typical individual with OSA syndrome suffers from obesity, with particular heaviness at the face and neck. Obesity is not always present with OSA; in fact, a significant number of adults with normal body mass indices (BMIs) have decreased muscle tone causing airway collapse and sleep apnea. The cause of this is not well understood. The hallmark symptom of OSA syndrome in adults is excessive daytime sleepiness. Typically, an adult or adolescent with severe long-standing OSA will fall asleep for very brief periods in the course of usual daytime activities if given any opportunity to sit or rest. This behavior may be quite dramatic, sometimes occurring during conversations with others at social gatherings.

The hypoxia (absence of oxygen supply) related to OSA may cause changes in the neurons of the hippocampus and the right frontal cortex. Research using neuro-imaging revealed evidence of hippocampal atrophy in people suffering from OSA. They found that in more than 25% of the OSA cases, this problem results in irreversible problems in mentally manipulating non-verbal information and in executive functions and working memory, despite years of optimal continuous positive airway pressure (CPAP) treatment.[2]

Diagnosis of obstructive sleep apnea is significantly more common among people in relationships, who are alerted to their condition by being informed by their sleeping partner, since individuals with obstructive sleep apnea are often unaware of the condition. There is stigma associated with loud snoring, and it is not considered a feminine trait. Consequently, females are less likely to be told by their partners that they snore, or to admit it to themselves or doctors. Furthermore, CPAP is also perceived negatively by females, and less likely to be utilized to its full extent in this group.[3]

Children[]

Although this so-called "hypersomnolence" (excessive sleepiness) may also occur in children, it is not at all typical of young children with sleep apnea. Toddlers and young children with severe OSA instead ordinarily behave as if "over-tired" or "hyperactive." Adults and children with very severe OSA also differ in typical body habitus. Adults are generally heavy, with particularly short and heavy necks. Young children, on the other hand, are generally not only thin, but may have "failure to thrive", where growth is reduced. Poor growth occurs for two reasons: the work of breathing is intense enough that calories are burned at high rates even at rest, and the nose and throat are so obstructed that eating is both tasteless and physically uncomfortable. OSA in children, unlike adults, is often caused by obstructive tonsils and adenoids and may sometimes be cured with tonsillectomy and adenoidectomy.

This problem can also be caused by excessive weight in children. In this case, the symptoms are more like the symptoms adults feel: restlessness, exhaustion, etc.

Children with OSA may experience learning and memory deficits and OSA has also been linked to lowered childhood IQ scores.[4]

Risk factors[]

Old age is often accompanied by muscular and neurological loss of muscle tone of the upper airway. Decreased muscle tone is also temporarily caused by chemical depressants; alcoholic drinks and sedative medications being the most common. Permanent premature muscular tonal loss in the upper airway may be precipitated by traumatic brain injury, neuromuscular disorders, or poor adherence to chemical and or speech-therapy treatments.

Individuals with decreased muscle tone, increased soft tissue around the airway, and structural features that give rise to a narrowed airway are at high risk for OSA. Men, in which the anatomy is typified by increased mass in the torso and neck, are at increased risk of developing sleep apnea, especially through middle age and later. Women suffer typically less frequently and to a lesser degree than do men, owing partially to physiology, but possibly also to differential levels of progesterone. Prevalence in post-menopausal women approaches that of men in the same age range. Women are at greater risk for developing OSA during pregnancy.[5]

OSA also appears to have a genetic component; those with a family history of it are more likely to develop it themselves. Lifestyle factors such as smoking may also increase the chances of developing OSA as the chemical irritants in smoke tend to inflame the soft tissue of the upper airway and promote fluid retention, both of which can result in narrowing of the upper airway. An individual may also experience or exacerbate OSA with the consumption of alcohol, sedatives, or any other medication that increases sleepiness as most of these drugs are also muscle relaxants.[6]

Causes[]

OSA and recurrent tonsillitis (RT) are fundamentally different in their pathogenesis and outcome.[7][8] Recurrent tonsillitis refers to repeated tonsil infections. Multiple repeated tonsil infections can spread to structures around the mouth resulting in severe infections and/or airway obstruction.

Most cases of OSA are believed to be caused by:

  • old age (natural or premature)
  • brain injury (temporary or permanent)
  • decreased muscle tone

Decreased muscle tone can be caused by drugs or alcohol, or it can be caused by neurological problems or other disorders. Some people have more than one of these issues. There is also a theory that long-term snoring might induce local nerve lesions in the pharynx in the same way as long-term exposure to vibration might cause nerve lesions in other parts of the body. Snoring is a vibration of the soft tissues of the upper airways, and studies have shown electrophysiological findings in the nerves and muscles of the pharynx indicating local nerve lesions.

  • increased soft tissue around the airway (sometimes due to obesity), and
  • structural features that give rise to a narrowed airway.

Craniofacial syndromes[]

There are patterns of unusual facial features that occur in recognizable syndromes. Some of these craniofacial syndromes are genetic, others are from unknown causes. In many craniofacial syndromes, the features that are unusual involve the nose, mouth and jaw, or resting muscle tone, and put the individual at risk for OSA syndrome.

Down syndrome is one such syndrome. In this chromosomal abnormality, several features combine to make the presence of obstructive sleep apnea more likely. The specific features in Down syndrome that predispose to obstructive sleep apnea include: relatively low muscle tone, narrow nasopharynx, and large tongue. Obesity and enlarged tonsils and adenoids, conditions that occur commonly in the western population, are much more likely to be obstructive in a person with these features than without them. Obstructive sleep apnea does occur even more frequently in people with Down syndrome than in the general population. A little over 50% of all people with Down syndrome suffer from obstructive sleep apnea,[9] and some physicians advocate routine testing of this group.[10]

In other craniofacial syndromes, the abnormal feature may actually improve the airway, but its correction may put the person at risk for obstructive sleep apnea after surgery, when it is modified. Cleft palate syndromes are such an example. During the newborn period, all humans are obligate nasal breathers. The palate is both the roof of the mouth and the floor of the nose. Having an open palate may make feeding difficult, but generally does not interfere with breathing, in fact, if the nose is very obstructed, then an open palate may relieve breathing. There are a number of clefting syndromes in which the open palate is not the only abnormal feature; additionally there is a narrow nasal passage - which may not be obvious. In such individuals, closure of the cleft palate – whether by surgery or by a temporary oral appliance, can cause the onset of obstruction.

Skeletal advancement in an effort to physically increase the pharyngeal airspace is often an option for craniofacial patients with upper airway obstruction and small lower jaws (mandibles). These syndromes include Treacher Collins syndrome and Pierre Robin sequence. Mandibular advancement surgery is often just one of the modifications needed to improve the airway, others may include reduction of the tongue, tonsillectomy or modified uvulopalatoplasty.

Post-operative complication[]

OSA can also occur as a serious post-operative complication that seems to be most frequently associated with pharyngeal flap surgery as compared to other procedures for the treatment of velopharyngeal inadequacy (VPI).[11] In OSA, recurrent interruptions of respiration during sleep are associated with temporary airway obstruction. Following pharyngeal flap surgery, depending on size and position, the flap itself may have an "obturator" or obstructive effect within the pharynx during sleep, blocking ports of airflow and hindering effective respiration.[12][13] There have been documented instances of severe airway obstruction, and reports of post-operative OSA continues to increase as healthcare professionals (i.e. physicians, speech language pathologists) become more educated about this possible dangerous condition.[14] Subsequently, in clinical practice, concerns of OSA have matched or exceeded interest in speech outcomes following pharyngeal flap surgery.תבנית:Citation needed

The surgical treatment for velopalatal insufficiency may cause obstructive sleep apnea syndrome. When velopalatal insufficiency is present, air leaks into the nasopharynx even when the soft palate should close off the nose. A simple test for this condition can be made by placing a tiny mirror at the nose, and asking the subject to say "P". This p sound, a plosive, is normally produced with the nasal airway closes off - all air comes out of the pursed lips, none from the nose. If it is impossible to say the sound without fogging a nasal mirror, there is an air leak - reasonable evidence of poor palatal closure. Speech is often unclear due to inability to pronounce certain sounds. One of the surgical treatments for velopalatal insufficiency involves tailoring the tissue from the back of the throat and using it to purposefully cause partial obstruction of the opening of the nasopharynx. This may actually cause OSA syndrome in susceptible individuals, particularly in the days following surgery, when swelling occurs (see below: Special Situation: Anesthesia and Surgery).

Finally, patients with OSA are at an increased risk of many perioperative complications when the present for surgery, even if the planned procedure is not on the head and neck. Guidelines intended to reduce the risk of perioperative complications have been published.[15]

Pathophysiology[]

The normal sleep/wake cycle in adults is divided into REM (rapid eye movement) sleep, non-REM (NREM) sleep, and consciousness. NREM sleep is further divided into Stages 1, 2 and 3 NREM sleep. The deepest stage (stage 3 of NREM) is required for the physically restorative effects of sleep, and in pre-adolescents this is the period of release of human growth hormone. NREM stage 2 and REM, which combined are 70% of an average person's total sleep time, are more associated with mental recovery and maintenance. During REM sleep in particular, muscle tone of the throat and neck, as well as the vast majority of all skeletal muscles, is almost completely attenuated, allowing the tongue and soft palate/oropharynx to relax, and in the case of sleep apnea, to impede the flow of air to a degree ranging from light snoring to complete collapse. In the cases where airflow is reduced to a degree where blood oxygen levels fall, or the physical exertion to breathe is too great, neurological mechanisms trigger a sudden interruption of sleep, called a neurological arousal. These arousals rarely result in complete awakening, but can have a significant negative effect on the restorative quality of sleep. In significant cases of OSA, one consequence is sleep deprivation due to the repetitive disruption and recovery of sleep activity. This sleep interruption in stage 3 (also called slow-wave sleep), and in REM sleep, can interfere with normal growth patterns, healing, and immune response, especially in children and young adults.תבנית:Citation needed

Diagnosis[]

Diagnosis of OSA is often based on a combination of patient history and tests (lab- or home-based). These tests range, in decreasing order of cost, complexity and tethering of the patient (number and type of channels of data recorded), from lab-attended full polysomnography ("sleep study") down to single-channel home recording. In the USA, these categories are associated with insurance classification from Type I down to Type IV.[16] Reimbursement rules vary among European countries.[17]

Polysomnography[]

AHI Rating
<5 Normal
5-15 Mild
15-30 Moderate
>30 Severe

Polysomnography in diagnosing OSA characterizes the pauses in breathing. As in central apnea, pauses are followed by a relative decrease in blood oxygen and an increase in the blood carbon dioxide. Whereas in central sleep apnea the body's motions of breathing stop, in OSA the chest not only continues to make the movements of inhalation, but the movements typically become even more pronounced. Monitors for airflow at the nose and mouth demonstrate that efforts to breathe are not only present, but that they are often exaggerated. The chest muscles and diaphragm contract and the entire body may thrash and struggle.תבנית:Citation needed

An "event" can be either an apnea, characterised by complete cessation of airflow for at least 10 seconds, or a hypopnea in which airflow decreases by 50 percent for 10 seconds or decreases by 30 percent if there is an associated decrease in the oxygen saturation or an arousal from sleep.[18] To grade the severity of sleep apnea, the number of events per hour is reported as the apnea-hypopnea index (AHI). An AHI of less than 5 is considered normal. An AHI of 5-15 is mild; 15-30 is moderate and more than 30 events per hour characterizes severe sleep apnea.

Home oximetry[]

In patients who are at high likelihood of having OSA, a randomized controlled trial found that home oximetry (a non-invasive method of monitoring blood oxygenation) may be adequate and easier to obtain than formal polysomnography.[19] High probability patients were identified by an Epworth Sleepiness Scale (ESS) score of 10 or greater and a Sleep Apnea Clinical Score (SACS) of 15 or greater.[20] Home oximetry, however, does not measure apneic events or respiratory event-related arousals and thus does not produce an AHI value.

Treatment[]

Numerous treatment options are used in obstructive sleep apnea.[21] Avoiding alcohol and smoking is recommended,[22] as is avoiding medications that relax the central nervous system (for example, sedatives and muscle relaxants). Weight loss is recommended in those who are overweight. Continuous positive airway pressure (CPAP) and mandibular advancement devices are often used and found to be equally effective.[23][24] Physical training, even without weight loss, improves sleep apnea.[25] There is insufficient evidence to support widespread use of medications or surgery.[23]

Physical intervention[]

The most widely used current therapeutic intervention is positive airway pressure whereby a breathing machine pumps a controlled stream of air through a mask worn over the nose, mouth, or both. The additional pressure holds open the relaxed muscles. There are several variants:

  • Continuous positive airway pressure (CPAP) is effective for both moderate and severe disease.[26] It is the most common treatment for obstructive sleep apnea.
  • (VPAP), or variable positive airway pressure, also known as bilevel or BiPAP, uses an electronic circuit to monitor the patient's breathing, and provides two different pressures, a higher one during inhalation and a lower pressure during exhalation. This system is more expensive, and is sometimes used with patients who have other coexisting respiratory problems and/or who find breathing out against an increased pressure to be uncomfortable or disruptive to their sleep.
  • Nasal EPAP, which is a bandage-like device placed over the nostrils that utilizes a person's own breathing to create positive airway pressure to prevent obstructed breathing.
  • (APAP), or automatic positive airway pressure, also known as "Auto CPAP", incorporates pressure sensors and monitors the person's breathing.[27][28]

Oral appliances or splints are often preferred but may not be as effective as CPAP.[26] This device is a mouthguard similar to those used in sports to protect the teeth. It is designed to hold the lower jaw slightly down and forward relative to the natural, relaxed position. This position holds the tongue farther away from the back of the airway, and may be enough to relieve apnea or improve breathing.

Many people benefit from sleeping at a 30-degree elevation of the upper body[29] or higher, as if in a recliner. Doing so helps prevent the gravitational collapse of the airway. Sleeping on a side as opposed to sleeping on the back is also recommended.[30][31][32]

Some studies have suggested that playing a wind instrument may reduce snoring and apnea incidents.[33] This may be especially true of double reed instruments,[34][35] and Didgeridoo players.[36]

Surgery[]

Surgical treatments to modify airway anatomy, known as sleep surgery, are varied and must be tailored to the specific airway obstruction needs of a patient. Surgery is not considered a front line treatment for obstructive sleep apnea, as prospective, randomized, comparative clinical evidence against current front line treatments is lacking.[23][37] For those obstructive sleep apnea sufferers unable or unwilling to comply with front line treatment, a properly selected surgical intervention will be the result of considering an individual's specific anatomy and physiology, personal preference and disease severity.[21] There is little randomized clinical trial evidence for all types of sleep surgery.[23]

There are a number of different operations that may be performed including:

  • Nasal surgery, including turbinectomy (removal or reduction of a nasal turbinate), or straightening of the nasal septum, in patients with nasal obstruction or congestion which reduces airway pressure and complicates OSA.
  • Tonsillectomy and/or adenoidectomy in an attempt to increase the size of the airway.
  • Removal or reduction of parts of the soft palate and some or all of the uvula, such as uvulopalatopharyngoplasty (UPPP) or laser-assisted uvulopalatoplasty (LAUP). Modern variants of this procedure sometimes use radiofrequency waves to heat and remove tissue.
  • Reduction of the tongue base, either with laser excision or radiofrequency ablation.
  • Genioglossus advancement, in which a small portion of the lower jaw that attaches to the tongue is moved forward, to pull the tongue away from the back of the airway.
  • Hyoid suspension, in which the hyoid bone in the neck, another attachment point for tongue muscles, is pulled forward in front of the larynx.
  • Maxillomandibular advancement[38]

In the morbidly obese, a major loss of weight (such as what occurs after bariatric surgery) can sometimes cure the condition.

OSA in children is sometimes due to chronically enlarged tonsils and adenoids. Tonsillectomy and adenoidectomy is curative. The operation may be far from trivial, especially in the worst apnea cases, in which growth is retarded and abnormalities of the right heart may have developed. Even in these extreme cases, the surgery tends to cure not only the apnea and upper airway obstruction, but allows normal subsequent growth and development. Once the high end-expiratory pressures are relieved, the cardiovascular complications reverse themselves. The postoperative period in these children requires special precautions (see "Surgery and obstructive sleep apnea syndrome" below).

Neurostimulation[]

For patients who cannot use a continuous positive airway pressure device, the U.S. Food and Drug Administration in 2014 granted pre-market approval for an upper airway stimulation system that senses respiration and delivers mild electrical stimulation to the hypoglossal nerve in order to increase muscle tone at the back of the tongue so it will not collapse over the airway. The device includes a handheld patient controller to allow it to be switched on before sleep, and is powered by an implantable pulse generator, similar to one used for cardiac rhythm management. Approval for this active implantable neuromodulation device was preceded by a clinical trial whose results were published in the New England Journal of Medicine.[39][40]

Radiofrequency ablation[]

Radiofrequency ablation (RFA), which is conceptually analogous in some ways to surgery, uses low frequency (300 kHz to 1 MHz)[41] radio wave energy to target tissue, causing coagulative necrosis. RFA achieves its effects at 40 °C to 70 °C[42] unlike other electrosurgical devices which require 400 °C to 600 °C for efficacy.[43]

Subsequent evaluations of safety and efficacy have led to the recognition of RFA by the American Academy of Otolaryngology[37] as a somnoplasty treatment option in selected situations for mild to moderate OSA, but the evidence was judged insufficient for routine adoption by the American College of Physicians.[23]

RFA has some potential advantages in carefully selected medical settings, such as intolerance to the CPAP device. For example, when adherence is defined as greater than four hours of nightly use, 46% to 83% of patients with obstructive sleep apnea are non-adherent with CPAP[44] for a variety of reasons, including discomfort while sleeping.

RFA is usually performed in an outpatient setting, using either local anesthetics or conscious sedation anesthesia, the procedure itself typically lasting under 3 minutes. The targeted tissue, such as tongue or palate, is usually approached through the mouth without the need for incisions, although occasionally the target is approached through the neck using assisted imaging.[45] If the tongue is being targeted, this can be done from either dorsal or ventral side. Complications include ulceration, infection, nerve weakness or numbness and swelling. These complications occur in less than 1% of procedures.[41]

Medications[]

Evidence is insufficient to support the use of medications to treat obstructive sleep apnea.[23][46] This includes the use of fluoxetine, paroxetine, acetazolamide and tryptophan among others.[23][47]

Prognosis[]

Many studies indicate the effect of a "fight or flight" response on the body that happens with each apneic event is what increases health risks and consequences in OSA. The fight or flight response causes many hormonal changes in the body; those changes, coupled with the low oxygen saturation level of the blood, cause damage to the body over time.[48][49][50]

Without treatment, the sleep deprivation and lack of oxygen caused by sleep apnea increases health risks such as cardiovascular disease, aortic disease (e.g. aortic aneurysm),[51] high blood pressure,[52][53] stroke,[54] diabetes, clinical depression,[55] weight gain and obesity. [56]

The most serious consequence of untreated OSA is to the heart. Persons with sleep apnea have a 30% higher risk of heart attack or death than those unaffected.[57] In severe and prolonged cases, increased in pulmonary pressures are transmitted to the right side of the heart. This can result in a severe form of congestive heart failure known as cor pulmonale. Dyastolic function of the heart also becomes affected.[58] One prospective study showed patients with OSA, compared with healthy controls, initially had statistically significant increases in vascular endothelial growth factor (P=.003) and significantly lower levels of nitrite-nitrate (P=.008), which might be pathogenic factors in the cardiovascular complications of OSA.[59] These factors reversed to normal levels after 12 weeks of treatment by CPAP, but further long-term trials are needed to assess the impact of this therapy.[60]

Elevated arterial pressure (i.e., hypertension) can be a consequence of OSA syndrome.[61] When hypertension is caused by OSA, it is distinctive in that, unlike most cases (so-called essential hypertension), the readings do not drop significantly when the individual is sleeping (non-dipper) or even increase (inverted dipper).[62]

Epidemiology[]

Two to four percent of adults are believed to have obstructive sleep apnea.[22] It is most commonly diagnosed in middle aged males.[22]

If studied carefully in a sleep lab by polysomnography (formal "sleep study"), it is believed that approximately 1 in 5 American adults would have at least mild OSA.[63]

Research[]

Neurostimulation is currently being studied as a method of treatment;[64] an implanted hypoglossal nerve stimulation system received European CE Mark (Conformité Européenne) approval in March 2012.[65] Also being studied are exercises of the muscles around the mouth and throat through activities such as playing the didgeridoo.[66][67]

See also[]

  • Marfan syndrome
  • Respiratory disturbance index (RDI)
  • Upper airway resistance syndrome

References[]

  1. שגיאת תסריט: היחידה "citation/CS1" אינה קיימת.
  2. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  3. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  4. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  5. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  6. Sleep Apnea: Risk Factors, Mayo Clinic, June 29, 2010, Retrieved November 4, 2010.
  7. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  8. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  9. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  10. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  11. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  12. Pugh, M.B. et al. (2000). Apnea. Stedman's Medical Dictionary (27th ed.) Retrieved June 18, 2006 from STAT!Ref Online Medical Library database.תבנית:Page needed
  13. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  14. שגיאת תסריט: היחידה "citation/CS1" אינה קיימת.תבנית:Page needed
  15. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  16. FAQ on www.sleepeducation.com
  17. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  18. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  19. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  20. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  21. 21.0 21.1 Friedman: Sleep Apnea and Snoring, 1st ed. 2008
  22. 22.0 22.1 22.2 שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  23. 23.0 23.1 23.2 23.3 23.4 23.5 23.6 שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  24. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  25. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  26. 26.0 26.1 שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  27. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת. Review in: שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  28. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  29. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  30. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  31. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  32. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  33. Learning To Play A Wind Instrument Could Lower Your Risk For Obstructive Sleep Apnea
  34. Risk of Obstructive Sleep Apnea Lower in Double Reed Wind Musicians
  35. Playing a High Resistance Wind Instrument May Reduce Risk for Obstructive Sleep Apnea in Musicians
  36. Didgeridoo playing as alternative treatment for obstructive sleep apnoea syndrome: randomised controlled trial
  37. 37.0 37.1 "Submucosal Ablation of the Tongue Base for OSAS". American Academy of Otolaryngology- Head and Neck Surgery. http://www.entnet.org/Practice/Submucosal-ablation-of-the-tongue-base-for-OSAS.cfm. Retrieved 29 October 2013. 
  38. Sleep apnea
  39. http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfPMA/pma.cfm?id=18437. FDA "Premarket Approval (PMA) Inspire II Upper Airway Stimulation System" U.S. Food and Drug Administration. April 30, 2014.
  40. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  41. 41.0 41.1 שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  42. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  43. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  44. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  45. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  46. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  47. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  48. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  49. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  50. תבנית:Cite conference
  51. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  52. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  53. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  54. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  55. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  56. "Women with sleeping problems at higher risk for Type 2 diabetes". American Sleep Association. https://www.sleepassociation.org/2016/01/29/women-with-sleeping-problems-at-higher-risk-for-type-2-diabetes/. Retrieved 30 January 2016. 
  57. N.A. Shah, M.D., N.A. Botros, M.D., H.K. Yaggi, M.D., M., V. Mohsenin, M.D., New Haven, Connecticut (May 20, 2007). "Sleep Apnea Increases Risk of Heart Attack or Death by 30%". American Thoracic Society. Archived from the original on May 24, 2009. https://web.archive.org/20090524193435/http://www.thoracic.org:80/sections/publications/press-releases/conference/articles/2007/press-releases/sleep-apnea-increases-risk-of-heart-attack-or-death-by-30.html. 
  58. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  59. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  60. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  61. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  62. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  63. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  64. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  65. Editors (15 March 2012). "ImThera aura6000 System for Sleep Apnea Gets a Go in Europe". Medgadget. http://www.medgadget.com/2012/03/imthera-aura6000-system-for-sleep-apnea-gets-a-go-in-europe.html. Retrieved 15 January 2014. 
  66. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  67. שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.

Further reading[]

  • García Urbano, Jesús: Orthoapnea. Snoring and Sleep Apnea. Ed. Ripano, 2010. ISBN 978-84-937793-8-2
  • שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.
  • שגיאת תסריט: היחידה "Citation/CS1" אינה קיימת.

External links[]

  • תבנית:Dmoz

תבנית:CNS diseases of the nervous system

Advertisement