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PubMed2002

Obstructive sleep apnea syndrome and snoring in patients with bilateral vocal cord paralysis.

The analysis of the correlation between bilateral vocal cord paralysis and the occurrence of obstructive sleep apnea syndrome and snoring is presented. The aim of the study was to establish whether the decrease of the air flow in the upper airway in patients with bilateral vocal cord paralysis involves OSAS and/or snoring occurrence and whether arytenoidectomy affects an improvement of breathing parameters measured during sleep. Fourteen patients with bilateral vocal cord paralysis underwent Poly-MESAM examination before and 3 months after arytenoidectomy. They had never complained of snoring before. The Epworth sleepiness scale was used to quantify excessive daytime somnolence. The RDI, DI, mean saturation and percentage of snoring, loud snoring and sleep without snoring were estimated and compared pre- and postoperatively. The results were compared by the Student's t-test for dependent values. No significant differences were shown between the Epworth scores before and after the treatment. The RDI, DI and mean saturation were normal before and after the operation. The percentage of loud snoring decreased and the percentage of sleep without snoring increased significantly after arytenoidectomy in both cases. The mechanism of snoring in patients with vocal cord paralysis seems to be similar to OSAS. The difference consists in the level of flow limitation. On the basis of the results there is no reason to diagnose OSAS and UARS in patients with bilateral vocal cord paralysis. On the other hand, the intensive snoring that occurs after paralysis was significantly reduced as a result of arytenoidectomy.

Adult↗

PubMed2000

External nasal dilation reduces snoring in chronic rhinitis patients: a randomized controlled trial.

Chronic rhinitis patients often suffer from unrefreshing sleep and snoring, related to increased nasal resistance to airflow. Previous trials based on subjective assessment of snoring have demonstrated beneficial effects of Breathe Right (BR), a noninvasive external nasal dilator. Polysomnography (PSG) was applied to objectively assess the effects of BR on snoring. Twelve nonobese chronic rhinitis patients participated in the present study, which had a randomized, placebo-controlled design. The presence of snoring and the absence of sleep apnoea was demonstrated during a baseline overnight sleep study. Patients were then randomized for placebo or true nasal dilator treatment, which was also assessed by overnight PSG. The use of BR had no effect on sleep quality, arousal-index apnoea-hypopnoea-index or snoring loudness. Snoring frequency was significantly lowered by BR (173+/-29 snores x h(-l)), compared with placebo (258+/-34 snores x h(-1); p=0.016). The results support the hypothesis that Breathe Right is effective in reducing the amount of snoring in patients with chronic rhinitis. This objective finding is in line with some other reports on subjective improvement of snoring, based upon the judgement of bedpartners.

Adult↗

PubMed2000

Single-stage CO2 laser assisted uvuloplasty for treatment of snoring and mild obstructive sleep apnoea.

PURPOSE: The purpose of this study was to describe a single-stage laser assisted uvuloplasty (uvulectomy) and to determine its effectiveness in treatment of snoring and mild obstructive sleep apnoea (OSA). PATIENTS AND METHODS: All patients treated with laser assisted uvuloplasty in a 49-month period for snoring and/or mild OSA were studied. Frequency of snoring before and after surgery, loudness of snoring and postoperative discomfort were investigated. Patients were asked to evaluate change in daytime energy, sleep habits, missed days of work and also overall satisfaction following laser assisted uvuloplasty. RESULTS: Thirty patients underwent a single-stage laser assisted uvuloplasty. A preoperative diagnosis of OSA was established in 19 patients, the remaining 11 patients were treated for snoring. There were no complications and only one patient required an additional stage. A questionnaire was completed by 18 patients (10 patients diagnosed with sleep apnoea, and eight patients with snoring only). Preoperatively the frequency of snoring averaged 9.3 cm on a visual analogue scale. Postoperatively there were 12 patients with either none or very minimal snoring and six patients who had an average score of 3.2. Loudness of snoring also decreased from an average of 5.4 to 2.5 cm. Postoperative discomfort averaged 1.1 cm. Improvement in sleep was noted by 16 patients and improved daytime energy was noted by 17 patients. Eleven patients reported that they missed at least one day of work postoperatively with an average of 3 days missed. Patient satisfaction was reported by 17 patients with only one stating that he was unsatisfied with the procedure. CONCLUSIONS: Laser-assisted uvuloplasty (uvulectomy) is an effective surgical procedure for treatment of snoring and some types of OSA. A single-stage procedure appears to be effective and may further decrease the morbidity associated with this disease.

Adult↗

PubMed2003

Prevalence of habitual snoring and sleep-disordered breathing in preschool-aged children in an Italian community.

OBJECTIVE: To measure the prevalence of habitual snoring and sleep-disordered breathing in preschool-aged children. STUDY DESIGN: Cross-sectional survey with parental report and overnight ambulatory monitoring of children 3 to 6 years of age in 8 kindergartens (n = 604). Parents reported the child's information through an interviewer-based questionnaire or by a brief telephone interview. Snoring, oxygen saturation, body position, and heart rate were recorded for 1 night at home. RESULTS: Data were obtained on 98.5% of 604 children (447 questionnaires, 74%; 148 telephone interviews, 24.5%); groups were similar for sex and age. Two hundred sixty-five children had ambulatory monitoring at home. Habitual snoring (always and often) was reported in 34.5% and breathing cessation in 18.6%. Habitual snoring was associated with parental report of daytime symptoms (P =.001) and daytime somnolence (P =.032). Pathologic snoring was present in 12% of children (95% CI, 7.9-16.1). On multivariate analysis, parental report of habitual snoring was the strongest determinant of pathologic snoring (OR, 12.23; 95% CI, 3.56-41.94). Oxygen desaturation index > or =5 per hour was found in 13% of children (95% CI, 8.7-17.3). CONCLUSIONS: Parental report of habitual snoring is very common. Children with habitual snoring are more likely to have objectively measured snoring and daytime morbidity.

Child↗

PubMed1998

Gender and the systemic hypertension-snoring association: a questionnaire-based case-control study.

Since the role of gender in the association between hypertension and snoring is unknown, we studied it while accounting for age and body mass index (BMI) as confounding variables. A questionnaire on snoring was administered to 90 hypertensive (HT) subjects (45 men and 45 women) and to 90 normotensive (NT) subjects matched for gender, age and BMI. As expected, snoring was more commonly reported by men than by women, but no significant difference was found between HT and NT men, irrespective of age. Conversely, heavy snoring was more frequently reported by HT than NT women; habitual snoring was more common among young (age < 50 years) HT than NT women; and heavy snoring was more common among older (age > 50 years) HT than NT women. These data suggest an effect of gender on the hypertension-snoring association: in men, snoring may be accounted for by age and BMI whether or not hypertension is present, whereas in women the natural history of snoring appears different and more severe in HT than in NT. Although the mechanism(s) responsible for the differences between men and women are obscure at present, gender may be an important variable in the systemic hypertension-snoring association.

Adult↗

PubMed1999

Prospective study of snoring and risk of hypertension in women.

Whether snoring increases the risk of hypertension remains unclear. The authors examined the association between snoring and risk of hypertension in a cohort of 73,231 US female nurses aged 40-65 years and without diagnosed cardiovascular disease or cancer in 1986. Blood pressure levels and physician-diagnosed hypertension were self-reported through validated questionnaires. During 8 years of follow-up, 7,622 incident cases of physician-diagnosed hypertension were reported. Older age, smoking, body mass index, waist circumference, waist-hip ratio, weight gain, less physical activity, and sleeping on the back were directly associated with regular snoring. After adjustment for age, body mass index, waist circumference, and other covariates, snoring was associated with a significantly higher prevalence of hypertension at baseline (odds ratio = 1.22, 95% confidence interval (CI): 1.16, 1.27 for occasional snoring and odds ratio = 1.43, 95% CI: 1.33, 1.5 for regular snoring). In prospective analyses using incident cases of hypertension as the outcome, the multivariate relative risks of hypertension were 1.29 (95% CI: 1.22, 1.37) for occasional snoring and 1.55 (95% CI: 1.42, 1.70) for regular snoring. In addition, snoring was associated with significantly higher systolic and diastolic blood pressure levels. These data suggest that snoring may increase risk of hypertension in women, independent of age, body mass index, waist circumference, and other lifestyle factors.

Adult↗

PubMed1994

Snoring: is it in the ear of the beholder?

Complaint of snoring, which is usually voiced by a patient's bedpartner, frequently leads to investigations in the sleep laboratory that are designed to assess snoring objectively and determine whether it is a symptom of sleep apnea. How well this subjective complaint of the listener is confirmed by the objective measurement of snoring is not known. Consequently, we designed a study i) to test the validity of self-perception of snoring and ii) to compare subjective perception of snoring by the sleep technologist with objective measurement of its frequency and loudness. We studied 613 unselected patients referred to our sleep clinic because of snoring and suspicion of sleep apnea. They all had nocturnal polysomnography that included measurements of snoring, expressed as the number of snores per hour of sleep [snoring index (SI)] and mean (dBmean) and maximum (dBmax) nocturnal sound intensity. Following the sleep study, the technologist (and patient) independently rated a patient's snoring as none, mild, moderate or severe. Kruskall-Wallis test, Spearman rank correlations and Cohen's kappa statistics were used to compare the groups, examine the correlations between subjective and objective measurements, and check the agreement between them.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

PubMed2003

Effects of body position on snoring in apneic and nonapneic snorers.

STUDY OBJECTIVES: The positional dependency of obstructive sleep apnea (OSA) is well known, but objective evidence for the positional effect on snoring is lacking. The aim of this study is to elucidate the effect of body position on snoring, and that of sleep stage as well. DESIGN: Retrospective analysis of the effects of body position and sleep stage on snoring in nonapneic snorers (snorer group) and OSA patients (apneic group). SETTING: A sleep laboratory in a national hospital in Japan. PATIENTS: Seventy-two patients who complained of habitual snoring and underwent overnight polysomnography. INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: In the lateral position, most subjects in the snorer group showed decreased snoring both in time (p = 0.0004) and intensity (p = 0.0003), but subjects in the apneic group showed variable changes. In the apneic group, the positional dependency of snoring (the ratio of lateral value to supine value) was correlated with supine apnea-hypopnea index (AHI), that is, OSA patients with higher supine AHI tended to show increased snoring in the lateral position. AS to the effect of sleep stage, snoring was increased in deeper non-rapid eye movement sleep and decreased in rapid eye movement sleep in a given position. CONCLUSIONS: This study demonstrated that the positional dependency is different between nonapneic snorers and OSA patients. Most of the nonapneic snorers snore less in the lateral position than in the supine position in contrast to OSA patients who often fail to decrease snoring even in the lateral position.

Acoustics↗

PubMed1991

Pattern of simulated snoring is different through mouth and nose.

Cineradiography of the pharynx during simulated snoring was done in 6 healthy volunteers, and supraglottic pressure and flow rate were recorded in 12 others. We observed, immediately before snoring, a decrease in the sagittal diameter of the oropharynx followed, during snoring, by high-frequency oscillations of soft palate and pharyngeal walls. The pattern of soft palate oscillations was different while snoring through the nose or mouth. During inspiratory snoring through the nose, the soft palate remained in close contact with the back of the tongue and only the uvula presented high-frequency oscillations. Snoring through the mouth resulted in ample high-frequency oscillations of the whole soft palate. Frequency of airflow and supraglottic pressure oscillations was less (P less than 0.05) during mouth (28.2 +/- 7.5 Hz) than during nasal snoring (77.8 +/- 36.7 Hz). This difference may be related to the smaller oscillating mass (i.e., uvula) during nasal snoring. At variance with our previous data, which showed that snoring during sleep, in both heavy (nonapneic) snorers and obstructive sleep apnea patients, was systematically preceded by flow limitation, this was not true during simulated snoring.

Adult↗

PubMed2004

The influence of active and passive smoking on habitual snoring.

The impact of active smoking, passive smoking, and obesity on habitual snoring in the population is mainly unknown. We aimed to study the relationship of habitual snoring with active and passive tobacco smoking in a population-based sample. A total of 15,555 of 21,802 (71%) randomly selected men and women aged 25-54 years from Iceland, Estonia, Denmark, Norway, and Sweden answered a postal questionnaire. Habitual snoring, defined as loud and disturbing snoring at least 3 nights a week, was more prevalent among current smokers (24.0%, p < 0.0001) and ex-smokers (20.3%, p < 0.0001) than in never-smokers (13.7%). Snoring was also more prevalent in never-smokers exposed to passive smoking at home on a daily basis than in never-smokers without this exposure (19.8% vs. 13.3%, p < 0.0001). The frequency of habitual snoring increased with the amount of tobacco smoked. Active smoking and passive smoking were related to snoring, independent of obesity, sex, center, and age. Ever smoking accounted for 17.1% of the attributable risk of habitual snoring, obesity (body mass index > or = 30 kg/m(2)) for 4.3%, and passive smoking for 2.2%. Smoking, both current and ex-smoking, is a major contributor to habitual snoring in the general population. Passive smoking is a previously unrecognized risk factor for snoring among adults.

Adult↗

PubMed2003

Snoring, sleep apnoea and swallowing dysfunction: a videoradiographic study.

OBJECTIVES: Snoring is associated with subclinical pharyngeal swallowing dysfunction, probably owing to vibration trauma to the pharyngeal tissues caused by snoring. Negative intrathoracic pressure during apnoea causes stretching of the velum and pharynx. The aim of this study was to investigate whether patients with severe sleep apnoea have an increased frequency of videoradiographically diagnosed subclinical pharyngeal swallowing dysfunction compared with snoring patients with or without mild sleep apnoea as well as with non-snoring controls. METHODS: Eighty consecutive patients referred for sleep apnoea recordings because of snoring were examined. Fourteen of these patients were excluded because they suffered from dysphagia. Fifteen non-snoring, non-dysphagic volunteers served as controls. Videoradiography was performed to examine the oral and pharyngeal swallowing function in patients and controls. Overnight sleep apnoea recordings were used to evaluate the apnoea-hypopnoea index (AHI). RESULTS: Pharyngeal swallowing dysfunction was observed in 34/66 (52%) of the snoring patients and in 1/15 (7%) of the non-snoring controls. Pharyngeal swallowing dysfunction was observed in 50% of patients with an AHI of >or=30, in 61% of patients with an AHI of 5-29 and in 43% of patients with an AHI of <5. There was no significant difference in the frequency of pharyngeal swallowing dysfunction between snoring patients with different AHIs. CONCLUSION: Snoring patients run an increased risk of developing subclinical pharyngeal swallowing dysfunction independent of concomitant sleep apnoea.

Adult↗

PubMed1993

Effects of protriptyline on snoring characteristics.

We evaluated the effects of protriptyline on snoring characteristics in 14 nonapneic snorers (age range, 23 to 54 years; body mass index, 27.4 +/- 0.9 kg/m2, mean +/- SEM). The study design was a double-blind placebo-controlled crossover trial. Patients were evaluated during a polysomnographic study after each 2 weeks of treatment. Breathing sounds were recorded with two microphones symmetrically placed on each side of the bed, the signal being preamplified, equalized, and analyzed by using a real time analyzer. A snoring event was defined as a breathing sound with a sound pressure level (SPL) greater than 60 dB SPL. The snoring index (number/sleep hour) and the sound intensity of each event were automatically determined. Mild side effects were observed in ten subjects, but no subject interrupted the study because of them. The REM sleep time decreased with protriptyline with a parallel increase in stages 1 to 2. There was no difference in body position during sleep between the placebo and protriptyline trials. The snoring index decreased from 335 +/- 40 with placebo to 238 +/- 41 with protriptyline (p < 0.05) with important individual differences. Among the different sleep stages, the highest values of the snoring index were observed in slow-wave sleep with placebo. The snoring index decreased in each sleep stage with protriptyline, the highest decrease occurring in slow-wave sleep. The percentage of total sleep time (TST) spent above 60 dB SPL was significantly lower with protriptyline (6.1 +/- 1.2 percent TST) than with placebo (8.6 +/- 1.2 percent TST). Changes in snoring characteristics were not correlated with snoring severity, the drug blood level, the body mass index, or the drug-induced modifications in sleep architecture. We conclude that protriptyline can improve both snoring frequency and loudness in some nonapneic snorers, and that this improvement occurs mostly in the sleep stages where snoring is worst.

Acoustics↗

PubMed1993

Snoring, sympathetic activity and cardiovascular risk factors in a 70 year old population.

In order to describe the relation between snoring, cardiovascular risk factors, metabolic factors and sympathetitic activity, 804 70-year-old males and females were classified according to snoring habits and life-style factors (alcohol and tobacco consumption), blood pressure, body mass index (BMI), plasma lipids (triglycerides, cholesterol, high density lipoprotein), plasma catecholamines (epinephrine, norepinephrine), fasting blood glucose and glucose tolerance test (1 gram glucose per kg body weight given and blood glucose was measured 1 and 2 hours thereafter) were evaluated in all participants. Self-reported snoring was associated with gender (males showed higher prevalence than females, p < 0.05), alcohol consumption (p < 0.01), BMI (p < 0.001), systolic (p < 0.01) and diastolic (p < 0.05) blood pressure, glucose tolerance test (p < 0.01), plasma norepinephrine (p < 0.05) and partly with tobacco consumption (p = 0.08). No associations were found between snoring and fasting glucose, plasma lipids, plasma epinephrine or in the use of antihypertensive medication. In multivariate analysis, with forced entry of gender, BMI, physical activity, alcohol and tobacco consumption, the relation between snoring and blood pressure ceased; only systolic blood pressure was associated with snoring (p < 0.05). Snoring was still associated with plasma norepinephrine (p < 0.001) and abnormal glucose tolerance (p < 0.001). We conclude that, in a 70-year-old population, snoring is associated with gender, BMI and alcohol consumption. Snores showed higher plasma norepinephrine and abnormal glucose tolerance.

Aged↗

PubMed1997

[Value of various intra- and extraoral therapeutic procedures for treatment of obstructive sleep apnea and snoring].

BACKGROUND: Recently intra- and extraoral devices are increasingly used in order to treat obstructive sleep apnea (OSA) and snoring. We examined the value of some devices according to the literature and our own results. PATIENTS AND METHODS: The mandibular advancing devices aim at increasing upper airway diameter. The active part of the tongue extending device (SnorEx) is a stamp connected to a piston which exerts pressure at the base of the tongue causing its forward displacement; we studied 23 patients. The principle of an optically stimulating system ("eye-cover", Snore-Stop) consists of a microphone and light diods which are integrated in the eye-cover. After detecting acoustic signals (for example snoring) optical stimuli are generated in front of the eyes, which are thought to induce arousals causing a change of body position and the reduction of the snoring and apneas; we measured 24 patients. The principle of the tongue-retainer (Snore-Master) is the fixation of the tongue in a ventral position, which is thought to enlarge the mesopharyngeal area; we studied 14 patients. The nose plaster (Breathe-Right) contains an elastic spine that pulls the alae nasi cranial. This manipulation is thought to increase the diameter of the nostril and reduce the airway resistance. We measured 30 patients with obstructive sleep apnea and 20 snoring subjects without obstructive sleep apnea. RESULTS: Regarding the mandibular advancing due to different appliance designs and study protocols variable success rates have been documented. In patients with mild to moderate obstructive sleep apnea a reduction of the sleep related breathing disorder could be shown. Non compliance (NC) to the tongue extending device was 75% (17/23). Non-compliance-patients were characterized by unacceptable local-side-effects of the prosthesis, lacking improvement of symptoms and of the respiratory disturbance index. Both tongue-retainer and -extensor are characterized by a high incidence of local side effects. Neither the eye-cover nor the nose plaster could improve the severity of obstructive sleep apnoe or snoring. In contrast to another study we could not show a significant effect of the tongue-retainer. CONCLUSIONS: Neither the nose plaster nor the optical stimulating device influenced the degree of obstructive sleep apnea and snoring. There are conflicting data regarding the tongue retainer. The high rate of non-compliant subjects and the low efficacy of the tongue extending prosthesis precludes large-scale use of this treatment modality in patients with obstructive sleep apnoe and snoring. In selected individuals suffering from a mild to moderate degree of obstructive sleep apnea with CPAP-inefficiency and -incompliance the mandibular advancing principle may be an therapeutic alternative to CPAP.

Equipment Design↗

PubMed1991

Snoring during NREM sleep: respiratory timing, esophageal pressure and EEG arousal.

Eight men who were regular heavy snorers were monitored while awake and during nocturnal sleep. All subjects were known to be free of lung disease, obstructive sleep apnea syndrome, and oxygen drops during sleep. For each subject, two snoring periods of 3-31 min with a mean of 12.7 min were randomly selected for comparison with periods of normal, non-snoring NREM sleep breathing. A mean of 150 respiratory cycles per period were analyzed. For each respiratory cycle, respiratory inductive plethysmography and measurements of peak flow, laryngeal sounds, and esophageal pressure (Pes) were used to calculate breathing frequency (bf), inspiratory time (Ti), expiratory time (Te), total respiratory cycle length (Ttot), and Pes at its nadir. During NREM sleep silent breathing, the Ti/Te ratio was analogous to that already measured in normal subjects. With the onset of snoring, an immediate increase in Ti, Te, and Pes nadir were noted. Mean peak Pes nadir increased 120 +/- 37%, and mean Ttot increased by 18%. Through the duration of the snoring period, a further increase in Ti (mean = 10.4 +/- 3.4%) and a decrease in Te were noted, with a mean change in Ti/Ttot of 12 +/- 3.1%. The shape of the esophageal pressure wave during expiration shifted from its normal dynamics. The percentage of Te decreased by a mean of -9.8 +/- 2.3% (P less than 0.0001), and the rise time in Pes increased a mean of 37%. When Pes nadir was the most negative, a mean peak flow decrease of 43 +/- 13.6% from baseline was observed. Tidal volume had decreased by a mean of 22% and minute ventilation by a mean of 21% at the end of the snoring period. Separate investigation of each subject indicates that the evolutions of Ti, Te and Pes during snoring were not the same for all subjects. At least two different groups of snorers exist; these groups may be differentiated by the evolution of Pes over time during snoring. Modifications in the 'braking' role of inspiratory muscles during expiration may explain the changes in the Pes wave dynamics snoring which lead to repetitive EEG arousals, termination of snoring periods, and some sleep fragmentation.

Adult↗

PubMed1995

Snoring in twins.

Snoring is a prerequisite for obstructive sleep apnoea (OSA) and is known to run in families. Recent studies have provided sufficient evidence for a familial predisposition to OSA. In our study, 492 monozygotic and 284 dizygotic twins were contacted by telephone and asked to attend an interview which included questions of life habits, medical history, sleep habits and disorders, with particular emphasis on snoring. Our study showed that the probandwise concordance rate for habitual snoring was higher in monozygotic twins than in dizygotic ones, but the difference was not significant. The comparison of concordant pairs for habitual snoring vs. concordant pairs for non-snoring confirmed that habitual snoring is significantly associated with older age, male gender, higher body mass index (BMI), smoking and respiratory diseases. The multivariate analysis in the discordant groups confirmed that BMI is more strongly associated to habitual snoring in dizygotic twins than in the monozygotic ones. Our logistic analysis showed that other variables, such as smoking and respiratory diseases, are associated with habitual snoring in dizygotic pairs, but not in monozygotic ones. These findings suggest a genetic predisposition to habitual snoring.

Age Factors↗

PubMed2005

Relation of habitual snoring with components of metabolic syndrome in Korean adults.

AIMS: To examine the association between habitual snoring and components of the metabolic syndrome in Korean adults. Whether these associations are independent of obesity was also explored. METHODS: Four thousand five hundred and six men and 5041 women aged 40-69 years from the Korean Health and Genome Study were examined. Information of snoring frequency was obtained by a questionnaire and components of the metabolic syndrome were measured. RESULTS: There was a clear dose-response relationship between the increasing frequency of snoring and the higher prevalence of each component of the metabolic syndrome (P<0.001). After adjustment for age, abdominal obesity, and the other metabolic components, hypertension was significantly associated with a 1.2-fold excess of habitual snoring in both men (P<0.05) and women (P<0.05). The association of habitual snoring with hypertension was unaltered by obesity. Regardless of the presence or absence of abdominal obesity, there was an increase in the prevalence of habitual snoring as the number of metabolic abnormalities increased. CONCLUSIONS: Habitual snoring is associated with hypertension independent of obesity. While the relationship between habitual snoring and obesity is well recognized, characterization of the role of the other components of the metabolic syndrome as a cause or result of habitual snoring warrants a further study.

Adult↗

PubMed2002

Transoral radiofrequency treatment of snoring.

OBJECTIVES/HYPOTHESIS: Radiofrequency ablation (RFA) may effectively treat snoring with acceptable patient tolerance. STUDY DESIGN: A cohort of patients with unacceptable snoring underwent RFA to the soft palate between October 1997 and May 2000. Before the therapy, a family member or significant other person was interviewed to rate snoring loudness. METHODS: Snoring was rated on a visual analog scale of 0 to 10 (in which 0 was no snoring and 10 was horrific snoring) before and after therapy. All patients were treated with transoral RFA administered under local anesthesia at 6-week intervals. RESULTS: Complete data were available for 60 of the 75 treated patients. The average number of treatment sessions per patient was 1.8. These patients received an average energy of 1845 J. Overall the average snoring score was 8.9 before therapy and 3.5 after therapy. Fifty-one patients (85%) were considered to have major improvement in snoring loudness. A total of 9 patients (15%) were nonresponders. CONCLUSIONS: RFA to the soft palate is a viable option to treat socially unacceptable snoring. Inadequate response to therapy may reflect misdiagnosis or delivery of an insufficient amount of energy.

Adult↗