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PubMed1984

Snoring: surgical vs. nonsurgical management.

Eighteen children were treated for snoring. Surgical removal of enlarged tonsils and/or adenoids resulted in prompt and total elimination of snoring in 17 of these patients. One child required nasal and sinus surgery to gain relief from snoring. Eighty-three adults were interviewed, examined, and treated for snoring. Correction of anatomical abnormalities in the nose, soft palate, uvula, and pharynx achieved elimination of snoring in 72% of surgically treated cases. By contrast, nonsurgical remedies achieved snoring elimination in only 5% of patients (controls). Tracheostomy was required in 10% of snoring adults--those who proved to have severe obstructive sleep apnea syndrome. Snoring is due to the combined effect of several anatomic and physiologic abnormalities in the nasal and pharyngeal segments of the airway. It may be amenable to surgical therapy when the severity of the problem warrants it.

Adenoidectomy↗

PubMed1993

Snoring and nasal resistance during sleep.

Although it is widely accepted that nasal obstruction leads to snoring and sleep apnea, the relationship between these variables is not clear, mainly because of the lack of studies in which nasal resistance (Rna) and snoring were measured concurrently. The authors studied eight nonapneic snoring men with healthy noses by nocturnal polysomnography that included quantitative assessment of snoring and concomitant nasal resistance. In six of these eight patients nasal resistance increased during sleep, but there was no significant change for the group as a whole between wakefulness (0.209 +/- 0.224 Pa/cm3 per second) and sleep (0.292 +/- 0.203 Pa/cm3 per second). Linear regression analysis showed no significant correlation between sleeping nasal resistance and snoring index (partial R2 = .44, P = .071). We used each subject as his own control and compared the snoring profile at a time during sleep when nasal resistance was at its highest (0.550 +/- 0.375 Pa/cm3 per second) and lowest (0.146 +/- 0.090 Pa/cm3 per second) levels. Despite the significant (P < .01) differences in nasal resistance, they were not reflected in the number of snores or their sound intensity. It is concluded that nasal obstruction during sleep is not correlated significantly to frequency or intensity of snoring during exclusively nasal breathing.

Adult↗

PubMed1994

Uvulopalatopharyngoplasty for snoring: long-term results.

Uvulopalatopharyngoplasty (UPPP) has become a widely practiced procedure in the management of snoring. In a number of studies, all based on short-term follow-up, snoring was reduced or eliminated in 75% to 95% of patients. Because a decline in the initial success rate was casually observed, a formal analysis of the initial and long-term results of UPPP for snoring was made in the present study. From 1985 to 1989, 69 patients with severe habitual snoring were retrospectively analyzed. A scoring system was devised for snoring, and each patient was interviewed regarding the effects of UPPP on his or her snoring 16 to 75 (mean 44) months after surgery. In 60 (87%) of 69 patients, snoring was initially significantly reduced or totally eliminated. After 13 months the success rate dropped to 46% (32 of 69 patients). Most failures occurred between 6 and 12 months of surgery, after which time the success rate remained relatively stable. The authors' conclusion that the long-term success rate of UPPP for snoring declines significantly with time has obvious implications regarding presurgical patient counseling.

Adenoidectomy↗

PubMed1994

Cardiac arrhythmias, snoring, and sleep apnea.

We investigated the frequency of cardiac arrhythmias in patients suspected of having sleep apnea, and related them to the severity of apnea, snoring, and nocturnal hypoxemia. We prospectively studied 458 patients who had nocturnal polysomnography which included objective measurement of snoring (quantified by the number of snores per hour of sleep [snoring index (SI)] and maximum nocturnal sound intensity [(dBmax)], as well as examination of the electrocardiogram (modified lead 2). We found 58 percent prevalence of arrhythmias in patients with sleep apnea (apnea/hypopnea index = AHI > 10), vs 42 percent in nonapneic controls (chi 2 = 16.7, p < 0.0001). Patients with arrhythmias had more severe apnea and nocturnal hypoxemia, but not snoring, than patients without arrhythmias. To examine separately the relationship between the prevalence of arrhythmias and snoring, nocturnal oxygenation, and apnea--we selected subgroups of patients "at the opposite ends of the spectrum" with respect to the severity of snoring, hypoxemia, and apnea. We found that 38 percent of light snorers had arrhythmias vs 39 percent of heavy snorers, 82 percent of patients with mean nocturnal oxygen saturation < 90 percent had arrhythmias vs 40 percent of patients with mean nocturnal oxygen saturation > 90 percent (chi 2 = 7.4, p = 0.006), and 70 percent of patients with AHI > or = 40 had arrhythmias vs 42 percent with AHI < or = (chi 2 = 9.2, p = 0.002). We conclude that patients with sleep apnea as a group have higher prevalence of cardiac arrhythmias than nonapneic patients and that snoring alone, without concomitant sleep apnea, is not associated with increased frequency of cardiac arrhythmias.

Adolescent↗

PubMed1995

Incidence and remission of habitual snoring over a 5- to 6-year period.

Habitual snoring is associated with an increased prevalence of hypertension, stroke, and ischemic heart disease. To determine factors that influence the incidence and remission of habitual snoring, we analyzed responses to successive self-administered questionnaires with questions pertaining to snoring in a group of subjects participating in the Tucson Epidemiologic Study of Obstructive Airways Disease. In this study, 1,476 subjects were surveyed 5.8 +/- 0.6 (SD) years apart. Among subjects who habitually snored on the initial survey, 58.2% snored persistently and 35.5% remitted on the ensuing survey. Among subjects who did not habitually snore in the initial survey, 10.5% developed it on the subsequent survey. In further analyses, we found that male sex, obesity, and respiratory symptoms were significant independent risk factors for development of habitual snoring. Age over 65 years, the absence of obesity, and the absence of respiratory symptoms were associated with remission of habitual snoring.

Adult↗

PubMed1996

Self-reported snoring in pregnancy. Association with fetal outcome.

OBJECTIVES: To determine the incidence of self-reported snoring in pregnant compared with nonpregnant women. To compare indicators of fetal outcome in pregnant women with self-reported frequent snoring vs those without snoring. STUDY DESIGN: Prospective, nonrandomized screening and comparison between groups. PATIENTS: Three hundred fifty pregnant women and 110 age-matched nonpregnant women. METHODS: Survey evaluating self-reported snoring. For the pregnant women, infant birthweight, APGAR scores, and other indicators of fetal outcome were obtained by record review. RESULTS: Frequent snoring was reported in 14% of the pregnant women vs 4% of the nonpregnant women (Chi2=6.2; df=1; p<0.05). The pregnant women who reported frequent snoring did not have deliveries resulting in infants with evidence of an increase in compromised outcomes. CONCLUSIONS: Frequent snoring is reported more often in pregnant than in nonpregnant women. Snoring mothers do not appear to be at increased risk for delivering infants with fetal compromise as might be expected with the concomitant occurrence of obstructive sleep apnea.

Apgar Score↗

PubMed1999

Prevalence of snoring and sleep-disordered breathing in a student population.

INTRODUCTION: The prevalence of snoring and sleep-disordered breathing (SDB) in young adults in Southeast Asian countries is unknown. We aim to determine the symptoms and prevalence of SDB in a university student population using a questionnaire survey followed by home sleep monitoring. METHODS: The Sleep and Health Questionnaire (a modified version of the Specialized Centers of Research Sleep Questionnaire, translated into Chinese) was distributed to all first-year students (1,306 male and 1,757 female) enrolled in the Chinese University of Hong Kong. Subsequently, those students who returned the questionnaires were randomly chosen to undergo portable home sleep monitoring using the MESAM IV device (Madaus Medizin-Elektronik; Freiburg, Germany). RESULTS: A total of 1,910 replies were obtained from 3,063 questionnaires sent by mail (response rate, 62.4%). The female to male ratio was 1.8:1, with mean age of 19.4 years (SD, 1.3 years) and mean body mass index (BMI) of 20.0 (SD, 2.5). Overall, 25.7% of subjects reported snoring; 10.7% and 42.1% reported impaired performance ability and daytime sleepiness, respectively. Of the 88 subjects who underwent overnight sleep monitoring, 66 subjects (75%) were snorers and 8 subjects (9%) snored > 10% of the night. Male subjects had a higher BMI (p < 0.001) and tended to snore more often than female subjects (p = 0.06). Subjects with an oxygen desaturation index (ODI) > or = 3 had a BMI > 22 (p < 0.05). On sleep study, nine subjects (10.2%) and two subjects (2.3%) had a respiratory disturbance index (RDI) > or = 3 and an RDI > or = 5, respectively, associated with self-reported sleepiness, giving a minimum estimated prevalence of SDB as 0.1% (RDI > or = 5) in the study population. There was no correlation between recorded snoring with either RDI or self-reported sleepiness. Questionnaire responses, neck circumference, and alcohol consumption did not predict the occurrence of SDB. CONCLUSION: Snoring was prevalent, while SDB was uncommon in this student population. However, snoring and self-reported symptoms by questionnaire were poor predictors for SDB. Male gender showed a trend as an independent predictor for snoring, but not for SDB.

Adult↗

PubMed2006

Atopy as a risk factor for habitual snoring at age 1 year.

STUDY OBJECTIVES: To determine the prevalence of habitual snoring (HS) in 1-year-old children, and to assess the relationship between HS and atopic status in these children. DESIGN: Cross-sectional evaluation of a birth cohort selected from the population. SETTING: Ohio and Kentucky River Valley communities. PARTICIPANTS: Children participating in the Cincinnati Childhood Allergy and Air Pollution Study (CCAAPS) were recruited for this study. MEASUREMENTS AND RESULTS: At age 1 year, the children were evaluated for atopic status and exposure to environmental tobacco smoke (ETS). Parents were asked to complete a questionnaire pertaining to their snoring frequency and that of their child. Children with HS (snoring three or more times per week) were compared to those who either did not snore or snored less than three times per week. Data were available on 681 of the 700 children participating in CCAAPS study. Of these 681 children (377 boys and 304 girls), 542 were white (80%), 118 were African American (17%), and 21 were biracial or Asian (3%). The mean age (+/- SD) of our cohort at the time of assessment for snoring was 13.7 +/- 2.6 months. Of the 681 children, 105 snored habitually (15%). There was a significant association between HS and the following: (1) positive atopic status (p = 0.005); (2) African-American race (p < 0.01); and (3) a history of snoring in the father (p < 0.01) or in the mother (p < 0.01). There was, however, no association between HS and ETS. CONCLUSIONS: We found a 15% prevalence of HS in 1-year-old children born to atopic parents and a significant association with positive atopic status.

Cohort Studies↗

PubMed2006

Snore-associated sleep fragmentation in infancy: mental development effects and contribution of secondhand cigarette smoke exposure.

OBJECTIVE: The link between sleep-disordered breathing and neurocognitive functioning in preschool and school-aged children now has been established clearly. Within these age groups, isolated studies have examined the potential effect of snoring without gas exchange abnormalities on aspects of cognitive competence. The goal of the study was to test the potential association between snoring and decrements in developmental performance among infants. METHODS: Thirty-five healthy community infants (8.2 +/- 0.4 months) were administered the Bayley Scales of Infant Development, including the Mental Development Index (MDI), after standard, overnight research polysomnography. RESULTS: The apnea-hypopnea index for all infants was 0. Respiratory arousal index was significantly correlated with MDI. Snoring-associated arousals accounted exclusively for this relationship; spontaneous arousals and those that were associated with central apnea and oxyhemoglobin desaturation episodes (> or =4%) were not significantly correlated with MDI. Living in a smoking household was not significantly associated with the presence of objectively recorded snoring but was associated with an increase in arousal frequency in snoring infants. CONCLUSIONS: Infants with lower scores on a standardized mental development assessment had higher snoring-arousal indices. Because neither apnea nor hypopnea was present, these findings constitute additional evidence that snoring is not just an innocent noise during sleep in infants but may in fact represent the lower end of the disease spectrum associated with sleep-disordered breathing. Secondhand exposure to cigarette smoke may increase the deleterious effects of infant snoring.

Arousal↗

PubMed2003

Laser-assisted uvulopalatoplasty for the treatment of snoring and mild obstructive sleep apnea syndrome.

OBJECTIVE: To determine the efficacy of the laser-assisted uvulopalatoplasty (LAUP) procedure on snoring and Apnea-Hypopnea-Index (AHI) improvement in patients with snoring and mild obstructive sleep apnea syndrome (OSAS). STUDY DESIGN: Prospective, nonrandomized, nonblinded assessment of outcomes after LAUP in patients suffering from benign habitual snoring and/or mild OSAS. METHODS: Fifty-nine patients with habitual snoring and 25 patients with mild OSAS underwent LAUP (6 of them underwent simultaneous classic tonsillectomy and 20 carbon-dioxide laser tonsillotomy). All patients and their bed partners completed pre- and post-treatment questionnaires ranking snoring, whereas the patients with mild OSAS underwent postoperative polysomnography (PSG). RESULTS: During a 6-month to 5-year follow-up (mean 40 months), 91.5% of the patients with habitual snoring reported significant short-term improvement based on post-treatment questionnaires, whereas 79.7% reported long-term subjective improvement. Nineteen of 25 patients (76%) with mild OSAS reported significant improvement of snoring based on posttreatment questionnaires. According to the postoperative PSG, only 2% showed a worse AHI, whereas 60% showed reduction of the AHI to < or = 5. Eight patients (32%) showed little or no improvement of AHI. CONCLUSIONS: LAUP, in combination with carbon-dioxide laser tonsillotomy in some cases, is a safe, cost-effective, outpatient procedure for the treatment of many cases of habitual snoring and mild OSAS when preceded by careful selection of the candidates.

Adult↗

PubMedDate not supplied

The effect of nasal surgery on snoring.

Patients with nasal obstruction often have associated snoring. It is uncertain whether surgery, which relieves the nasal obstruction, will also relieve the snoring. We have reviewed 96 patients who complain of both nasal obstruction and snoring and who underwent nasal surgery. Snoring was completely relieved in 48 patients (50%), was less loud in a further 38 patients (40%), unchanged in 8 patients, and louder in 2. Patients who had nasal polypectomy as part of their nasal surgery obtained the greatest snoring relief. The relationship between nasal obstruction and snoring is complex and the alteration of airflow patterns after nasal surgery is postulated to be important in influencing snoring relief. This study suggests that, when snoring and nasal obstruction coexist, nasal surgery should be considered as the first line of surgical treatment.

Humans↗

PubMed1994

Snoring and cardiovascular risk factors.

The association of snoring with some cardiovascular risk factors was studied cross-sectionally by a postal survey among 3750 males aged 40-59 years. In univariate analyses, snoring associated statistically significantly (P < 0.01) with hypertension, smoking, obesity, heavy alcohol use, physical inactivity, dyspnoea, hostility and morning tiredness. In a multiple logistic regression model adjusted by age, snoring associated significantly with smoking, obesity, physical inactivity, hostility and morning tiredness. When smoking was excluded from the multivariate model, alcohol use was also associated significantly with snoring. The association of snoring with smoking, and with obesity seemed to be almost independent from other studied correlates of snoring. Our results indicate that in further studies on predictive value of snoring with regard to coronary heart disease and stroke, the associations of snoring with hypertension, smoking, obesity, heavy alcohol use, physical inactivity and hostility have to be considered, as these risk characteristics may cause confounding effects.

Adult↗

PubMed1991

Obligatory nasal breathing: effects on snoring and sleep apnoea.

OBJECTIVE: To test the effects on snoring and sleep disordered breathing of a dental prosthesis (Snore-No-More) which is designed to decrease snoring by preventing mouth breathing during sleep. DESIGN: A crossover controlled trial. Each subject was studied on two nights a week apart. There was a control (no treatment) night and an experimental (treatment) night. The order of control and experimental nights was randomised. SETTING: The Royal Adelaide Hospital Sleep Laboratory. PARTICIPANTS: Fourteen male volunteers (age range, 36-59 years) were studied. All had a history of chronic snoring but denied other symptoms of obstructive sleep apnoea syndrome. INTERVENTIONS: On experimental nights subjects wore the dental prosthesis for the whole study period. On control nights no device was worn. MAIN OUTCOME MEASURES: Studies were conducted overnight during the subject's normal sleep period. The following measurements were made: (i) frequency and loudness of snores; (ii) frequency of disordered breathing events (apnoeas and hypopnoeas); (iii) mean and minimum arterial oxygen saturation while asleep; and (iv) sleep stages. RESULTS: The dental prosthesis did not change the mean frequency or mean intensity of snores. The number of sleep disordered breathing events per hour of sleep decreased by approximately one-third on experimental nights (mean +/- SEM events/h: control, 24.7 +/- 5.3; experimental, 16.1 +/- 3.3, P less than 0.05). Neither sleep architecture nor arterial oxygen saturation differed between control and experimental nights. CONCLUSION: Snores using the dental prosthesis Snore-No-More to produce obligatory nasal breathing are unlikely to experience clinical benefit.

Adult↗

PubMed2000

Changes in genioglossus muscle activity in obstructive sleep apnea patients with and without snore guard.

OBJECTIVE: To study the effect of Snore Guard on the genioglossus (GG) muscle activity of obstructive sleep apnea (OSA) patients. MATERIALS AND METHODS: Fifteen male patients with mild to severe OSA were diagnosed by overnight polysomnographic studies, and were reexamined after using Snore Guard for 2-6 months. The difference in GG muscle activity was then compared. RESULTS: The overnight GG muscle activity decreased significantly with Snore Guard. The levels of GG muscle activity during awake quiet breath and obstructive sleep apnea were higher than in sleepstate quiet breath without Snore Guard, and significantly decreased with Snore Guard. The increase in GG muscle activity during sleepstate quiet breath with Snore Guard was not statistically significant. The fluctuating GG muscle activity without Snore Guard was effectively improved by treatment with the appliance. CONCLUSION: The effect of Snore Guard on OSA patients is a mechanical enlargement of upper airway volume. The genioglossus muscle is passive during treatment.

Adult↗

PubMed2004

[Oral appliances in the treatment of snoring].

There are many methods of snoring treatment from conservative and prosthetic to surgical. The snoring sound is produced by vibration of the soft tissues of the pharynx, soft palate and also uvula. Snoring occurs in 50% of the adult male population and it can be isolated or sign of the obstructive sleep apnoea syndrome. Oral appliances modify the position of the mandibule, the tongue and other structures in oral cavity. Oral appliances are recommended for the treatment of snoring and mild obstructive sleep apnoea syndrome. That is why we constructed the study to assess wheather oral appliances correct snoring. 12 mails (aged 43-57) with intensive snoring for at least 50% of the sleep time were qualified to the treatment with oral appliances. The decision about the type of the device were made by ENT surgeon and maxillo-facial surgeon. The various oral appliances were used; some of which were modyfied by us. During the treatment snoring was tested with Poly-Mesam device. The best results were obtained with the use of devices that correct the position of soft palate and uvula. All the devices decreased snoring significantly. They were tolerated by the majority of patients.

Adult↗

PubMed2001

Radiofrequency tissue volume reduction: multilesion vs single-lesion treatments for snoring.

OBJECTIVE: To compare the safety and efficacy of single-lesion and multilesion radiofrequency tissue reduction (RFTR) of the soft palate for the treatment of snoring. DESIGN: Prospective, nonrandomized clinical trial. SETTING: University hospital outpatient clinic. PATIENTS: Nonrandomized patients undergoing RFTR to treat socially unacceptable snoring. Of 47 patients, 16 received single-lesion treatments and 31 received multilesion treatments. INTERVENTION: Soft-palate RFTR was performed using a radiofrequency generator. Patients required 1 to 3 treatments based on improvement or withdrawal from the study, and each received 1, 3, or 4 lesions per treatment. Patients who received single-lesion therapy did not cross over into the multilesion group; however, 5 patients in the multilesion group received 4-lesion therapy after a treatment with 3 lesions. MAIN OUTCOME MEASURES: Outcome measures were determined using visual analog scale questionnaires assessing level of snoring (snoring index) and level of pain (pain index) associated with the procedure. Adverse events and complications during treatment were cataloged. Data were collected before the procedure, 6 weeks after each treatment, and an average of 16 months after the last procedure. RESULTS: Single-lesion and multilesion groups showed significant improvement in snoring after RFTR treatments (P<.01 for both). However, compared with the single-lesion group, the multilesion group required fewer treatments (1.94 vs 2.38; P =.05) and was more than twice as likely to be cured after 2 treatments (61% vs 25%; P =.02). A trend toward improved clinical outcomes with increased number of lesions and total energy per treatment was observed when patients treated with 1, 3, or 4 lesions were compared. The 4-lesion group had the most pronounced improvement in snoring index score per treatment, the lowest number of treatments required for cure, and the greatest percentage of patients cured after 2 treatment sessions. Follow-up demonstrated minimal relapse of snoring in the multilesion group at a mean of 16 months. Although there was a statistically significant increase in pain in the multilesion group vs the single-lesion group, this increase did not increase narcotic use or time off work and was considered minimal by reporting patients. CONCLUSION: Multilesion RFTR using higher energy levels per treatment is safe and has increased efficacy without increased complications relative to single-lesion therapy.

Adult↗

PubMed2007

Radiofrequency surgery of the tongue base in the treatment of snoring--a pilot study.

In a previously published study, a significant reduction of snoring was reported after treatment with radiofrequency surgery of the tongue base in patients suffering from obstructive sleep apnea syndrome. The aim of this study was to investigate the efficacy of radiofrequency surgery of the tongue base in the treatment of primary snoring. Twenty patients suffering from primary snoring (AHI < 10/h, body mass index < 32 kg/m(2)) and an isolated hypertrophic tongue base at clinical examination were enrolled in this clinical trial. The patients underwent bipolar radiofrequency surgery of the tongue base under local anaesthesia. Pre- and post-operative body weight, daytime sleepiness (Epworth sleepiness scale) and snoring scores (visual analogue scales) were evaluated by the patients and their bed partners, respectively. Postoperative follow-up data was collected 6-8 weeks after treatment. A statistically significant reduction of the preoperative snoring levels from 7.5 +/- 2.4 to 6.1 +/- 2.8 was seen after treatment (p < 0.001). Body weight and daytime sleepiness remained unaffected. Only 3 out of 20 patients were satisfied with the result as defined by VAS < 3. Despite statistically significant reduction of the subjective snoring scores after radiofrequency of the tongue base, only minimal clinical improvement was achieved. Only 3 out of 20 patients were satisfied with the results. With regard to the clearly beneficial effect seen in patients with obstructive sleep apnea, this result indicates different pathophysiological principles in the generation of snoring.

Adult↗

PubMed2005

Palatal implants for primary snoring: short-term results of a new minimally invasive surgical technique.

OBJECTIVE: To determine the safety and efficacy of a new soft palate implant procedure for the reduction of snoring. STUDY DESIGN AND SETTING: Fifteen healthy patients with primary snoring due to palatal flutter were enrolled into this prospective study after clinical and endoscopic examination and polysomnography. The average age of the patients was 41.2 +/- 8.6 years with a body mass index of 26.2 +/- 2.5 kg/m2. The Anti-Snoring Device consists of a delivery tool with a cylindrical implant of braided polyester filaments. Under local anesthesia, three implants intended for permanent implantation were placed into the soft palate. Snoring-related symptoms were assessed by visual analogue scales (VAS), polysomnography, and the SNAP system at baseline and 90 days postoperatively. RESULTS: All implants were placed without complications. Only minor discomfort was reported in four cases within the first three days postprocedure. At the 90-day follow-up snoring was reduced from 7.3 +/- 1.6 to 2.5 +/- 2.1 (VAS, P < 0.01) and from 347 +/- 239 to 264 +/- 168 snoring sounds/hour (SNAP, P > 0.05). Polysomnography did not show any deterioration of sleep or breathing. Speech, swallowing, and taste were unchanged. CONCLUSION: The Anti-Snoring Device is a new surgical tool offering a simple and minimally invasive procedure. Our data demonstrate that the treatment is safe and effective with good patient acceptance. Further patient follow-ups are needed to evaluate the long-term results.

Adult↗