Sleep medicine is a multidisciplinary branch of medicine that addresses sleep disorders and their impact on overall health. Within this specialty, otolaryngologists play a crucial role, given that many sleep disorders, such as obstructive sleep apnea (OSA), are closely related to the upper respiratory tract. This article offers a comprehensive overview of sleep medicine, focusing on the consequences of sleep disorders and the treatments available from an otolaryngological perspective.

Sleep Disorders: An Overview

Sleep disorders are conditions that affect the quality, quantity, and timing of sleep, causing problems with daytime functioning. The most common disorders include:

Insomnia: Difficulty falling or staying asleep.
Sleep Apnea: Repeated interruptions in breathing during sleep.
Restless Legs Syndrome: Uncomfortable sensation in the legs with an uncontrollable urge to move them.
Narcolepsy: Excessive daytime sleepiness with episodes of sudden sleep.
Parasomnias: Abnormal behaviors during sleep, such as sleepwalking and night terrors.

Among these, obstructive sleep apnea (OSA) is one of the most common and severe disorders, with important health implications.

Consequences of Sleep Disorders
Physical Health
Cardiovascular Diseases: Sleep apnea is associated with hypertension, arrhythmias, heart attacks and strokes. Frequent interruptions in breathing cause spikes in blood pressure and cardiovascular stress.
Metabolism and Diabetes: Sleep deprivation and apnea are related to alterations in glucose tolerance and insulin resistance, increasing the risk of type 2 diabetes.
Immune System: Lack of sleep impairs immune function, increasing susceptibility to infections and chronic diseases.
Obesity: Sleep apnea and insomnia contribute to weight gain due to hormonal imbalances that affect appetite and metabolism.
Mental health
Depression and Anxiety: Sleep disorders are both a cause and a consequence of mental health problems. Disruption of deep sleep can exacerbate depressive and anxiety symptoms.
Cognitive Performance: Lack of sleep affects memory, attention, judgment and reaction time, which can have serious consequences in daily and professional life.
Quality of life
Chronic Fatigue: Excessive daytime sleepiness and fatigue negatively impact quality of life, productivity, and personal relationships.
Accidents: Daytime sleepiness increases the risk of traffic and work accidents, representing a significant danger to public safety.
Diagnosis in Otorhinolaryngology
Clinical Evaluation
Clinical History: A detailed patient history is crucial, covering symptoms, sleep habits, medical and family history, and the possible presence of comorbidities.
Physical Examination: Examination of the upper respiratory tract, including the nose, throat, and larynx, helps identify structural abnormalities that may contribute to sleep disorders.
Diagnostic tests
Polysomnography (PSG): It is the gold standard for the diagnosis of sleep disorders. It measures multiple parameters, such as brain activity, eye movements, muscle tone, heart rate and breathing during sleep.
Nocturnal Oximetry: Measures blood oxygen saturation at night, useful for detecting desaturations typical of sleep apnea.
Home Sleep Studies: They provide a less complex and expensive alternative to PSG in the laboratory, although with limitations in the detection of some parameters.
Treatments from the Otorhinolaryngological Perspective
Medical Management
CPAP (Continuous Positive Airway Pressure): It is the most effective treatment for OSA. It keeps the airways open during sleep through a continuous flow of pressurized air.
Medications: Include hypnotics for insomnia, stimulants for narcolepsy, and dopaminergic agents for restless legs syndrome.
Surgical Management
Maxillomandibular Advancement: Surgery that moves the bones of the jaw and upper jaw forward to expand airway space.
Septoplasty and Turbinate Reduction: Corrects deviations of the nasal septum and reduces the turbinates to improve nasal airflow.
Palate Implants: Implants that harden the soft palate to prevent its collapse during sleep.
Alternative therapies
Mandibular Advancement Devices: Dental appliances that advance the lower jaw to keep the airway open.
Lifestyle and Sleeping Position Changes: Weight loss, avoiding alcohol and sedatives, and sleeping on your side can improve sleep apnea symptoms.