Audio-Digest Foundation: otolaryngology

Main Written Summaries Listing | Otolaryngology: 2005 Listings
Audio-Digest FoundationOtolaryngology


Volume 38, Issue 19
October 7, 2005

The following is an abstracted summary, not a verbatim transcript, of the lectures/discussions on this audio program. If, after reviewing this written summary, you would like to hear the contents and/or earn CME/CE credit, simply visit the Audio-Digest Foundation website

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ADVICE ON SNORING AND SLEEP APNEA

BUILDING A SNORING AND SLEEP APNEA PRACTICE: SELF-PROMOTION, LIAISONS, AND PRACTICE POINTERS Mitchell L. Petusevsky, MD, Chairman, Division of Medicine, Co-Director of Sleep Laboratory, and Staff Physician in Pulmonary Medicine, Cleveland Clinic Florida, Naples
Introduction: snoring—occasional problem in 40% to 45% of people, habitual problem in 25%; more common among men, overweight individuals, and elderly; sleep apnea—undiagnosed in >80% of individuals; more common in men, postmenopausal women, and overweight individuals; may be present in 9% of people by 70 yr of age
Self-promotion in community: educate physicians in local hospitals about snoring and sleep-related disease; talk to community, senior citizen, and service groups; participate in health fairs and screening programs
Necessary liaisons: excellent sources of referral include—allergists (some patients with allergic disease may require surgery to manage snoring problems); bariatric surgeons (before weight-loss surgery, many patients may require preoperative testing and treatment for snoring and sleep apnea); cardiologists (40%-50% of patients who present with refractory heart failure or hypertension have sleep apnea); dietitians can help identify patients requiring management of sleep apnea; endocrinologists encounter many patients who are overweight, snore, and have sleep disorders; neurologists (correlation between Parkinson’s disease, cerebrovascular accident, and development of sleep disorders); urologists (strong correlation between sleep apnea and some forms of erectile dysfunction); family practitioners and internal medicine specialists—should be educated about questions that can identify 70% of patients with simple sleep apnea; appropriate questions determine whether patient snores, awakens choking or gasping, feels tired during day, or feels refreshed in morning; gastroenterologists—knowledgeable about correlation between reflux disease and sleep apnea; intravenous (IV) conscious sedation for endoscopy considered good stress test for sleep apnea; key colleagues include—dentists, ie, many patients who refuse to wear masks will consider using oral appliance; medical equipment companies with representatives who treat patients properly and provide overnight oximetry; pulmonologists who cooperate in management of noncompliant patients or surgical candidates; psychiatrists or sleep psychologists who help manage individuals with insomnia or other problems that cannot be handled by otolaryngologist; weight reduction specialists
Obtain database using: interview of patient and patient’s bed partner; Epworth Sleepiness Scale; physical examination
Become affiliated with good sleep laboratory: when evaluating laboratory, determine—whether staff includes experienced and properly registered polysomnographic technicians; waiting time required to obtain sleep study; accessibility of all types of masks; policy for performing split-night studies; financing plans accepted; appropriateness of location and appearance; whether physician can interpret study data
Convince patients to “buy into” illness: successful management requires—lifelong commitment by patient; convincing patient to wear mask; good management tools include—setting up appointments to personally discuss baseline and continuous positive airway pressure (CPAP) data; scheduling follow-up visits; instituting CPAP compliance and support programs; developing shared medical visit program; selecting experienced staff member to serve as patient contact
Medical therapy: primary treatment for snoring and sleep apnea; stressing role of medical therapy—improves credibility; promotes better selection of surgical candidates; improves surgical success rates; options for managing snoring include— weight reduction; positional therapy; avoidance of alcohol and central nervous system (CNS) depressants; nasal corticosteroids when appropriate; options for sleep apnea include—same techniques used for snoring; CPAP
BUILDING A SNORING AND SLEEP APNEA PRACTICE: THE TOP 10 LIST FOR SUCCESS David Greene, MD, Head of Otolaryngology, Cleveland Clinic Florida, Naples
Sleep apnea: surgery complements medical therapy; partnership between otolaryngologist and pulmonologist crucial for providing total care; factors enhancing practice opportunities—prevalence of snoring and sleep apnea; exponential increase in clinical knowledge; need to increase awareness that sleep disordered breathing (SDB) presents important health issue
Top 10 tips for practice success: screen all patients for snoring and excessive daytime sleepiness; make screening part of intake form and review of systems; before proceeding with pharyngeal surgery or somnoplasty, obtain sleep studies routinely to diagnose and stage sleep apnea (many patients sicker than you think; if in doubt, obtain computerized overnight oximetry before sending patient to sleep laboratory); provide screenings at health fairs; maximize medical therapy; work to identify candidates for bariatric surgery who require treatment for obstructive sleep apnea (OSA); develop relationships with sleep centers and pulmonologists; treat nasal airway obstruction to convert CPAP failures to CPAP responders; work with hospital to locate airway observation rooms close to nursing station (provide continuous monitoring of O2 saturation); learn about SDB— multifactorial problem; associated with multiple risks; never guarantee cure; CPAP remains primary therapy; current management focuses more on improving aerodynamics and not on ablation
WORK-UP AND POLYSOMNOGRAPHY Dr. Petusevsky
Snoring: potentially serious medical problem; exacerbated by—consuming alcohol before going to sleep; deep sleep; any factor producing bulky tissue or anatomic variance; nasal obstruction; point—when first made aware of snoring problem, individual should seek help from specialist
Patient evaluation: determine whether—patient awakens tired and experiences excessive daytime sleepiness and fatigue; bed partner has observed changes in patient’s personality; point—if answers to all questions negative, patient has benign snoring; polysomnography (PSG) indicated when—answer to any interview questions yes; results on Epworth Sleepiness Scale abnormal; physical examination detects anatomic obstruction; patient demonstrates increased activity of sympathetic nervous system
Sleep apnea: potentially life-threatening; airway obstruction occurs repeatedly throughout night; with each episode, O2 levels fall and heart and brain deprived of O2 ; patient—awakens with loud snore; becomes excessively tired and sleepy during day; faces increased risk for heart attack, stroke, seizure, fatal rhythm disturbance, sudden death, and motor vehicle accident
Basic work-up: look for evidence of snoring, gasping, choking, and daytime sleepiness; assess characteristics of witnessed apnea; determine whether—patient awakens in morning with dry mouth and headache; uses CNS depressants; physical examination includes—determining body weight and body mass index (BMI); determining neck size (>17.5-in neck correlates with sleep apnea); examination of upper airway; patient history should include information provided by— bed partner; test data from previous management of sleep disorder
CPAP intolerance: if patient initially CPAP tolerant, determine whether—mask defective; CPAP equipment outmoded and defective; patient gained or lost weight since initial study; if patient was never CPAP tolerant, determine whether—mask, pressure, or humidity problems exist; patient had inadequate titration (major reason for noncompliance with CPAP); or requires special mask that does not become displaced with change in patient’s position; noncompliant patients—may be helped by newer, more comfortable masks and techniques
Polysomnography (PSG): indicated for—diagnosing sleep-related breathing disorders; performing CPAP titration and preoperative evaluation of SDB; evaluating deterioration in initially favorable response to surgery or use of dental appliances; investigating marked weight gain or loss; evaluating narcolepsy (PSG should be followed by multiple sleep latency testing) or testing for rapid eye movement (REM) sleep–related behavior disorders; assessing patients suspected of having nocturnal seizures or periodic limb movements of sleep; detecting SDB in individual with persistent insomnia; components of evaluation—electroencephalography (EEG); electro-oculography (EOG) to measure eye movements and to detect REM sleep; electrocardiography (ECG); electromyography (EMG) to detect periodic limb movements or to diagnose REM sleep–related behavior disorder; pulse oximetry; microphone to record snoring; video camera to record body position; nasal pressure and airflow monitoring; measurement of chest and abdominal movement to identify attempts at breathing
Sleep staging: wakefulness indicated by alpha waves and closed eyes; light sleep—stage 1 (lasts 10 min; breathing slow and regular; heartbeat regular; blood pressure falls; blood flow to brain decreases; body movement minimal; patients easily awakened; EEG demonstrates low-voltage theta rhythm; combination of theta waves and slow, rolling eye movement considered characteristic); stage 2 (brain waves slow; sleep spindles and K complexes develop; eye movement declines; patient less easily awakened; pulse and body temperature drop; apnea absent; airflow at nose and movement of chest and abdomen remain rhythmic and regular); delta sleep (slow-wave, stages 3 and 4 sleep)—deep sleep; brain waves slow; patient difficult to awaken; once awakened, patient exhibits “sleep drunkenness”; eye movement or other muscle activity absent; most likely stage where sleep terrors, sleepwalking, or enuresis occur; REM sleep—breathing rapid, shallow, and irregular; eyes demonstrate jerking movement; limb muscles protectively paralyzed; dreams frequently frightening and violent; dream state begins at 90 to 120 min and continues every 90 min thereafter in progressively longer fashion until patient awakens in morning; caveat—because obstruction occurs most often during REM sleep, adults must wear CPAP mask all night, every night
Pathology: REM sleep with arousal in patient with central apnea—findings include sawtooth waves, atonia, no airflow or pressure through nose, and no movement of chest or abdomen (if patient had obstructive apnea, there would be no pressure or flow in nose, with movement of abdomen and chest); as apnea ends, changes in EEG pattern indicate arousal; patient in stage-2 sleep with classic OSA and arousal—characteristic findings include absence of snoring and air flow at nose, marked movement of chest and abdomen, and termination of apnea with burst of snoring and arousal on EEG; CPAP eliminates both apnea and snoring
Split-night study: patient monitored during first half of night, and CPAP titration done during second half; provides information on patterns of activity occurring through night; monitors patient’s response to CPAP; detects other problems that require treatment, eg, periodic jerking limb movements with arousal and restless leg syndrome
Detailed treatment report: essential for reimbursement; documents—clinical indication; study procedure; sleep parameters during baseline and CPAP titration; body positions; respiratory events; pressures and titrations used during CPAP; codes for CPAP orientation and fitting of mask; oximetry and telemetry data; number of arousals; limb movement data; final assessment includes—diagnosis; conclusions from CPAP titration; treatment recommendations; disclaimers concerning impaired driving, weight reduction, and avoiding alcohol and CNS depressants
NOSE AND NASAL SURGERY IN OBSTRUCTIVE SLEEP APNEA —Dr. Greene
Nose: tip of respiratory tree; provides thermal regulation; acts as resistor that matches impedance of upper and lower airways, affects length of expiration, and provides positive end expiratory pressure (PEEP) for lungs; regulates pulmonary function, ie, too much or too little resistance impairs lung function; increased nasal resistance linked to SDB via—altered airflow dynamics; stimulation of neural reflexes; genetic predisposition; points—nasal breathing provides better lung function than oral breathing; nasal obstruction linked to worsening sleep apnea; oral breathing—develops once critical airway resistance reached; mandible and tongue drop posteriorly and cause obstruction
Patient evaluation: indications for nasal surgery in SDB—nasal obstruction during day; chronic mouth breathing at night; anatomic obstruction; impaired CPAP tolerance; diagnostic work-up includes—anterior rhinoscopy; Cottle maneuver; lifting nasal tip to detect profound “tiptosis”; nasal endoscopy during nasolaryngoscopy; computed tomography (CT) and cephalometrics to lesser degree; sinus disease—common among patients with SDB; area of concern because many of these people do not complain about obstruction caused by sinus problem; obstruction can be caused by—intranasal tumors; nasal valves; septum; turbinates; mucosa; nasal cycle and reflexes; allergic rhinitis; sinusitis; polyposis
Integrated approach to nasal surgery for SDB: when patient with nasal airway obstruction fails initial CPAP—perform nasal surgery; repeat CPAP to determine patient’s response to therapy; caveat—some patients never tolerate CPAP
Surgical candidates “for cure” of OSA who cannot tolerate CPAP: require 2-stage approach; stage 1 requires— uvulopalatopharyngoplasty (UPPP) with combination of tonsillectomy and radiofrequency tongue base ablation; patient continues on nasal CPAP; stage 2—deals with nasal obstruction; implemented once patient heals from initial surgery; includes conservative turbinoplasty when necessary; performed concomitantly with second radiofrequency tongue ablation; if patient has undergone preoperative septoplasty, perform tongue ablation in office; postoperative care—perform symptomatic assessment 2 mo after surgery; repeat PSG at 3 mo; if patient fails repeat PSG— consider hyoid or genioglossus advancement; in some cases, more tongue base ablation can salvage situation
Nasal surgery tips: maximize medical therapy; do not eliminate ability of nose to act as resistor; avoid aggressive surgery (4-turbinate surgery makes patient nasal cripple); if sleep apnea significant, maximize CPAP first; consider staging nasal and pharyngeal surgery—severity of apnea and medical status key concerns; if procedures performed concomitantly, nasal packing worsens SDB and prevents patient from using CPAP; point—maintain 24-hr monitoring of O2 saturation
Maintain close relationship with sleep clinic: some patients may have marked sinusitis, but have adapted to problem and become asymptomatic; CPAP and sleep evaluation may bring otherwise unrecognized problems to light

Educational Objectives

The goal of this program is to educate the listener about the management of sleep apnea and snoring. After hearing and assimilating this program, the clinician will be better able to:
1. Develop a successful community practice for treating snoring and sleep apnea.
2. Implement 10 recommendations for successfully managing patients who present with sleep apnea and snoring.
3. Determine the appropriate use of polysomnography in the workup of patients with sleep apnea and snoring.
4. Establish the correlation between nasal obstruction and sleep disordered breathing (SDB).
5. Develop an integrated approach to nasal surgery for SDB.

Discussed on This Program

Midazolam HCl [Versed]
Oxycodone HCl [OxyContin, others]
Propofol [Diprivan]

Suggested Reading

Boyd EL, Philpot EE: Obstructive sleep apnea, nasal congestion, and snoring: their systemic effects and impact on quality of life. Allergy Asthma Prac 25:43, 2004; Chesson AL et al: The indications for polysomnography and related procedures. Sleep 20:423, 1997; Fairbanks DNF, Woodson BT, Mickelson SA. Snoring and Obstructive Sleep Apnea. 3rd ed. Lippincott Williams & Wilkins, 2003; Heinzer RC et al: Lung volume and continuous positive airway pressure requirements in obstructive sleep apnea. Am J Respir Crit Care Med 172:114, 2005; Johns MW: Daytime sleepiness, snoring, and obstructive sleep apnea. The Epworth Sleepiness Scale. Chest 103:30, 1993; Kim ST et al: Polysomnographic effects of nasal surgery for snoring and obstructive sleep apnea. Acta Otolaryngol 124:297, 2004; Littner M: Polysomnography in the diagnosis of the obstructive sleep apnea-hypopnea syndrome. Chest 118:286, 2000; Rey M et al: Relation between polysomnography parameters and apnea index in obstructive sleep apnea syndrome. Respiration 61:14, 1994.

Faculty Disclosure

In adherence to ACCME guidelines, the Audio-Digest Foundation requests all lecturers to disclose any significant financial relationship with the manufacturer or provider of any commercial product or service discussed. The following has been disclosed: Dr. Greene is affiliated with ArthroCare Corporation, Aventis, GlaxoSmithKline, and Schering.


Drs. Greene and Petusevsky gave their scientific presentations at the 4th Annual Cleveland Clinic Otolaryngology Symposium 2005, presented March 17 to 19, 2005, in Naples, Florida, by Cleveland Clinic Florida. The Audio-Digest Foundation thanks the speakers and the Cleveland Clinic Florida for their cooperation in the production of this program.


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