Sleep Apnea Treatment

Snoring

Snoring is defined as an acoustic phenomenon, predominantly inspiratory, of variable intensity, caused by the vibration of the soft tissue and which is based on oropharyngeal airflow resistance in the upper airway. Habitual snoring is a common phenomenon with a prevalence, ranging between 4 and 29% in men and between 3 and 14% in women, increasing with age and connected with obesity. Although initially regarded as an anecdotal phenomenon without clinical relevance, many studies have linked snoring with various cardiovascular diseases including high blood pressure, heart disease and stroke, which has meant that today it is considered as a pathological phenomenon.

Classification of snoring
The classification of snoring show up a string of various difficulties. The scientific literature contains distinctions between simple snoring or mild, notebooks appears isolated from any condition or disease that compromises the caliber of the UA and pathological snoring associated with sleep-disordered breathing. Lugaresi et al makes a distinction between snoring and continued cyclical snoring. He defines the continuous snoring as an inspiratory noise with a constant amplitude in each cycle that is not serious for the patient, or neither means excessive discomfort for the companions of bed. It is a common phenomenon and not pathological. In contrast, cyclical snoring is characterized by cyclical noise, a noise with variable intensity, overlying the continuous one (which can reach the 85 decibel-level) and by quieter intervals corresponding to apnea.

The American Sleep Disorders Association (ASDA) defines primary snoring as "severe respiratory sounds produced in the upper airways during sleep, without episodes of apnea, hypoventilation, desaturation or arousals and no evidence of insomnia or hypersomnia related to snoring”. It is a vibration of the soft tissues of the pharynx (soft palate, tonsils, lateral pharyngeal walls ...) which usually occurs on inspiration. This vibration generates an annoying noise, not pathological cause it is not accompanied by sleep disruption, daytime sleepiness or desaturation. But it can be a social nuisance of wedded life or an incurrence that arise from the evolution of obstructive pathologies OSAHS. Snoring is considered non-pathological, if the intensity is less than 40dB and the frequency is steady during sleep. Snoring is defined pathological, forecast to be strong, irregular and stegnant.

130 dB 90 dB 60-80 dB 100 dB 70 dB 50 dB 40 dB 10 dB 1 dB 0 dB	Airplane taking off Car horn Severe snoring Electric drill Intense traffic Moderate snoring Conversation The tick-tock of a clock A baby's respiration Auditory threshold

Based on sound recordings, other classifications measure the number of current peaks of over 55 decibels produced by night. Less than 150 peaks are considered as non-snorers, indifferent snorers alternate between 150 and 300 peaks of intensity, moderate snorers between 300 and 500 and severe snorers, if the acustical bound of 55dB is exceeded by more than 500 occasions. The World Health Organization (WHO) has established the maximum tolerable noise of 65 averaged decibels. Studies on the acoustics of snoring have been recorded in habitual snorers values above 80dB. When snoring exceed 70 dB, it leads to arousals or awakenings in the snorers themselves, that impact on sleep quality and secondarily on the health of affiliated persons, which are continuously exposed to these intolerable noise levels. The sound circumstances of snoring indicate an amplification, that is even more noticeable by persons close to the patient and annoying them, all the more because it occurs in an environment of peace and silence, which is usually characterized by nighttime.

Epidemiology of snoring

The prevalence of respiratory disorders is very high in todays society, as and because different studies have prooved it in recent years. They indicate a presence of 25% in men and 11% in women). Approximately a 45% of adults snore occasionally and 25% do so regularly. As a disease it is a problem in two principles, the social, which turns these patients into "unbearable" bedfellows and a more serious clinical consequence, the associated morbidity. As for the impact on personal relationships, discomfort caused to the conyuges are not negligible and that sometimes come to bear noises that reach a level of 80-90 decibels (equivalent to noise that causes a truck at high speed on a highway). The threshold of hearing damage is estimated at an intensity of 65 dB. On the other hand, there have been cases of hearing loss (deafness) own self-inflicted by the patient's snoring. Keep in mind that sometimes snoring reaches the sound intensity levels of a chainsaw. Snoring disrupt personal and family relationships of patients, psychologicaly expanding its limit, so far that the people who snore and the people in the immediate environment suffer consequences, which result in high levels of divorce.


Contributing factors for snoring

Snoring is common in adults and it is usually not a sign of an underlying disorder. But it is an indication of an increase in the resistance of the upper airway and may be a sign of obstructive sleep apnea. Snoring may also be associated with morphological conditions that narrow the upper airway, such as obesity, nasal congestion, craniofacial abnormalities, hypothyroidism, acromegaly, and adenotonsillar hypertrophy. The pathogenic mechanisms of snoring are complex. It is a respiratory acoustically noise, based on the vibration of the walls of the oropharynx, where the permeability of the upper airway is altered by some of the many factors that regulate it. These factors predisposing to pharyngeal light reduction are the origin of snoring, based on the collapsibility of the pharynx to the amplitude of the oropharynx level.

• Importance of nasal breathing. Mouth breathing is a common condition that predisposes habitual snoring. During normal nasal breathing, resistance is generally low in one nostril and higher in the other, allowing a balance of the respiratory cycle. When bilateral nasal obstruction exists, the increase of the resistance provoces an arousal, that restores the flow through the mouth breathing, so that the resistance increases for the pharyngealcaliber reduction caused by the displacement of the suprahyoid structures. Snoring may also be related to a deviated nasal septum, an enlargement of the noseturbinates, tonsils or palate, chronic laryngitis, tenderness in the muscles of the mouth or throat, or nasal obstruction passing. Any of these factors predispose to pharyngeal light reduction, decreasing the advent of air to the lung and giving rise to sound vibration that causes snoring.

• Obesity is the most important factor in sleep-disordered breathing. Overweight directly affects the size of the UA and due to the metabolic and endocrine comorbidity associated with obese patients.

• Postural factors. The supine position increases the likelihood of snoring by the displacement of the mandibular structures to places further behind.

• La ingesta de The intaking of alcohol and sedatives, make for to snoring and OSA, due to its depressant effect on the respiratory center.

• The tobacco acts favouring the presence of snoring, due to inflammation and edema and secondarily due to pharyngeal narrowing.

• Genre. There is a greater prevalence of snoring in men than women. The reason for this difference is not yet known but is considering the possible influence of sex hormones and anthropometric factors, although currently doesn’t exist any conclusive study, that justify the male dominance in the development of snoring. Proven is that the progesterone hormone (typically female) provides ventilation and the snoring better itself with pharmacological administration of progesterone. The female is hormonally protected from snoring, but that may change with the arrival of a pregnancy due to the increasing segregation of the hormone progesterone, what results in an increase in nasal congestion. Similarly, in post-menopausal women (when the progesterone level declines), the rise of snoring is justified, because it is proven that in the group of post-menopausal women the prevalence of snoring increases.

• Age. The increased prevalence of snoring with age has been demonstrated in all epidemiological studies. About 20% of adults in middle age of life are snorers, this percentage varies in response to population studies by age subgroups, 10% men and 5% women aged 30 years and 60% male and 40% female aged 60. The age factor is instrumental in the development of snoring. In children, the prevalence is quite high, but lower than in adults, but with a most alarming condition for snoring can cause behavioral problems and cognitive failures. In the XXI Congress of the Spanish Society of Pediatrics Outpatient and Primary Care, Jordi Coromina noted that 12% of children are snoring and half of them have urinary incontinence during sleep. In addition, these sleep apnea triplicate the risk of an attention deficit and hyperactivity and studies show that children, who snore can lose up to 11 points from their IQ and do so, affect their school performance by fatigue and by behavior disorder, that they are suffering. In the same vein, according to a report of the Central Hospital of the University of Helsinki, published in the Journal of Developmental and Behavioral Pediatrics, children, who snore are more tend to have other sleep problems such as nightmares, somniloquy, or difficulties of going to bed and they have more symptoms of depression and anxiety, as well as language and attention problems than others who don’t snore.