Efeitos do dilatador nasal Qiar® na obstrução nasal, ronco, apneia obstrutiva do sono, exercícios físicos e na respiração pelo nariz / Effects of nasal dilator Qiar® on nasal obstruction, snoring,obstructive sleep apnea, physical exercise, and nose breathing

Introdução: O objetivo deste estudo é avaliar o uso do Dilatador Nasal Qiar®– Abridor Nasal e Levantador da Ponta Nasal, em pacientes com obstrução nasal e seus efeitos no ronco, apneia obstrutiva do sono, exercício físico, congestão nasal e respiração nasal. Métodos: Participaram do estudos 30 pacientes que responderam ao questionário da escala de sonolência Epworth, Índice de Qualidade de Sono de Pittsburgh, realizaram exame otorrinolaringológico completo, Rinometria Acústica e Polissonografia. Resultados: Polissonografias demonstraram diferenças significativas entre noite controle e noite de tratamento com Qiar®na eficiência, arquitetura e fragmentação do sono, tempo de ronco e Índice de apneias-hipopneias; Qiar® teve bom impacto no IAH, reduziu 50% do número de eventos respiratórios e em 64,1% o tempo de ronco. Testes de aptidão física demonstraram melhora significativa no tempo e VO2 máximo no grupo Qiar® (31,8 ml/kg/min), comparado ao controle (25,8 ml/kg/min). Houve significativo bem-estar usando Qiar®, 28 pacientes (93,3%) relataram ser melhor ou muito melhor sua respiração e desempenho no teste físico. Todos os resultados foram correlacionados com Rinometria, PSG e Teste de Aptidão Física. Conclusões: Este estudo demonstrou que Qiar® é eficaz na redução da obstrução nasal, roncos e apneia obstrutiva do sono, melhora da respiração durante exercícios físicos, diminuição da congestão nasal, facilita respiração pelo nariz, melhora arquitetura e qualidade do sono. Seu efeito é imediato, sem efeitos colaterais, com ação mecânica, sem medicamentos, pode ser recomendado como alternativas para descongestionantes e corticosteroides nasais tópicos e também para pacientes que não querem ou não podem fazer outros tipos de tratamentos.

Introduction: The aim of this study is to evaluate the use of Nasal Dilator Qiar®, a nasal opener and nasal tip lifter, in patients with nasal obstruction and its effect on snoring, obstructive sleep apnea, exercise, nasal congestion and nasal breathing. Methods:The study included 30 patients who answered the Epworth Sleepiness Scale and the Pittsburgh sleep quality index questionnaires, and underwent complete ENT examination, acoustic rhinometry and polysomnography (PSG). Results: PSG showed significant differences between control night and night with Qiar® treatment in the efficiency, architecture and fragmentation of sleep, time snoring and apnea-hypopnea index (AIH); Qiar® had good impact on the AHI, and it reduced the number of respiratory events by 50% and time snoring by 64.1%. Physical fitness tests demonstrated significant improvement in time and peak VO2 in the Qiar® group (31.8 ml/kg/min) as compared to the control group (25.8 ml/kg/min). There was significant well-being using Qiar®, as 28 patients (93.3%) reported better or much better breathing and physical performance. All results were correlated with Rhinometry, PSG and Physical Fitness Test. Conclusions: This study demonstrated that Qiar® is effective in reducing nasal obstruction, snoring and obstructive sleep apnea, improves breathing during exercise, reduces nasal congestion, eases breathing through the nose and improves the architecture and quality of sleep. Its effect is immediate, without side effects, with mechanical action, without medication, and it can be recommended as an alternative to decongestants and topical nasal corticosteroids and also for patients who do not want or cannot use other types of treatments.

The use of nasal dilator strips as a placebo for trials evaluating continuous positive airway pressure

OBJECTIVES: The aim of the current study was to compare the objective and subjective effects of continuous positive airway pressure to the use of nasal dilator strips in patients with acromegaly and moderate to severe obstructive sleep apnea. METHODS: We studied 12 patients with acromegaly and moderate to severe obstructive sleep apnea (male/ females = 8/4, age = 52±8 ys, body mass index = 33.5±4.6 Kg/m², apnea-hypopnea index = 38±14 events/h) who had been included in a randomized, crossover study to receive three months of treatment with continuous positive airway pressure and nasal dilator strips. All patients were evaluated at study entry and at the end of each treatment by polysomnography, and Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index and treatment satisfaction questionnaires. ClinicalTrials.gov: NCT01265121 RESULTS: The apnea-hypopnea index values decreased significantly with continuous positive airway pressure treatment but did not change with the use of nasal dilator strips. All of the subjective symptoms improved with both treatments, but these improvements were significantly greater with continuous positive airway pressure than with the nasal dilator strips CONCLUSION: The use of nasal dilator strips had a much smaller effect on the severity of obstructive sleep apnea in patients with acromegaly and moderate to severe obstructive sleep apnea in comparison to the use of continuous positive airway pressure. Moreover, the improvement in several subjective parameters without any significant objective improvement in obstructive sleep apnea resulting from the use of nasal dilator strips is compatible with a placebo effect.

Effects of External Nasal Dilators on Nasal Respiration and Patency in Patients with Deformity of the Nasal Septum by Mladina ClaSSIFICATION: An Acoustic Rhinometric Study / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: The external nasal dilator (END) was designed to improve nasal respiration by expanding the nasal valve area and authors have proven in previous reports that the END improves nasal respiration and patency in patient with DSN. The present study attempts to assess the different effects of the END on nasal respiration and patency in DSN patients with dysfunction of the nasal valve area and in those with dysfunction of some other areas. MATERIALS AND METHODS: Fourty-six male patients (ages 18-49, average age 31.5) without any other nasal or sinus disease and who are not classified as Mladina types 1, 4 or 7 were used as subjects. The type of DSN was determined by Mladina classification. Those with dysfunction of the nasal valve area (Type 2) were classited as Group A and those with dysfunction of some other anatomical area as Group B (Type 3, 5, 6). The subjective sensation of nasal respiration, average minimum cross-sectional area (MCA) and nasal volume (V5: nasal volume from 0-5 cm) of all subjects were assessed and compared before and after the application of an END. RESULTS: Subjective sensation of nasal respiration, MCA and V, improved sign ificantly in both groups after the application of an END, but there were no significant differences between the two groups. CONCLUSION: Although an F,ND significantly improves nasal respiration and patency, this effect does not show any significant differences between patients with dysfunction of the nasal valve area and those with dysfunction of some other anatomical areas. This is because ENDs equally affect all Types of septal deformity.

Effects of External Nasal Dilators on Snoring and Obstructive Sleep Apnea in Korean Adults: A Polysomnographic Study / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: It was reported that external nasal dilators (ENDs) can reduce snoring and obstructive sleep apnea (OSA) in white people by dilating the nasal valve area and then, improving nasal breathing. However, there are no available data on Asians, whose geometry of nasal cavities is different from that of white people. The aim of this study is to evaluate the effects of ENDs on snoring and OSA in Korean adults. MATERIALS AND METHODS: Twelve simple snorers (3 female and 9 males, aged 19 to 44 years) and 35 OSA patients (35 males, aged 22 to 65 years) without nasal diseases were included in this study. Polysomnography including measurement of snoring intensity was performed at two separate nights, one with and the other without an END. Averaged maximum snoring intensity, apnea index (AI), respiratory disturbance index (RDI), ratio of deep sleep (stage 3 and 4) to total sleep time, and minimum arterial oxygen saturation (SaO2) with and without an END were measured and compared. RESULTS: Snoring intensity was reduced in 6 (50.0%) of 12 simple snorers and 16 (45.7%) of 35 OSA patients. In overall, snoring improved significantly in both groups. In OSA patients, AI and RDI improved significantly, but ratio of deep sleep time and minimum SaO2 did not. There were no significant correlations between change of snoring intensity and change of AI or RDI in OSA patients. CONCLUSION: These results suggest that ENDs are helpful to improvement of snoring and respiration during sleep, but the sleep stages remain almost unchanged by ENDs in Korean adults with snoring and/or OSA.

Effects of External Nasal Dilators on Nasal Respiration and Patency in Patients with Deformity of the Nasal Septum: An Acoustic Rhinometric Study / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: Some types of deformities of the nasal septum (DNSs) interfere with the nasal valve function. External nasal dilators (ENDs) were developed to improve the nasal airway by mechanically dilating the nasal valve. The aim of this study is to evaluate the effects of ENDs on nasal respiration and patency in patients with DNS. MATERIALS AND METHODS: Fifty-four patients with DNS (37 males and 17 females, aged 18 to 46 years) without other sinonasal diseases were included in this study. All subjects were required to assess their own sensation of nasal respiration on a 100 mm visual analog scale. Minimal cross-sectional areas (MCAs) and volumes of 0 to 5 cm from the nostril (V 5s) of both nasal cavities were measured by acoustic rhinometry, respectively. All measurements before application of an END were compared with those 5 minutes after application. RESULTS: The subjective sensation of nasal respiration improved significantly after application of an END in both male and female. The END increased MCA and V5 significantly in both sexes. However, there were no significant correlations between changes in the subjective and objective parameters. CONCLUSION: ENDs offer an effective, nonsurgical therapeutic approach in the management of DNS by improving nasal respiration and by increasing MCA and nasal cavity volume. However, it should be kept in mind that this improvement in nasal patency does not always coincide with the improvement in subjective sensation of nasal respiration.

Effects of External Nasal Dilators on Nasal Respiration and Patency in HealthyKorean Adults: An Acoustic Rhinometric Study / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: Although physiological effects of external nasal dilators (ENDs) were recently reported on white and black people, there are no available data on Asians. Nasal geometry is affected by many factors such as race, age, or sex. The aim of this study is to evaluate the effects of ENDs on nasal respiration and patency in healthy Korean adults. MATERIALS AND METHODS: One hundred healthy Korean adults (50 females and 50 males, aged 20 to 39 years) without nasal complaints, history of sinonasal surgery, nor major structural abnormalities of the nose were recruited. All subjects were required to assess their own sensation of nasal respiration on a 100 mm visual analog scale. Minimal cross-sectional areas (MCAs) and volumes from 0 cm to 5 cm from the nostril (V5s) of both nasal cavities were measured by acoustic rhinometry and added together to obtain the total MCA and V5, respectively. All measurements before application of an END were compared with those 5 minutes after application. RESULTS: The sensation of nasal respiration improved significantly after application of an END in both female and male. The END increased MCA and V5 significantly in both sexes. These acoustic rhinometric changes resulted in 21.1% (male) and 20.5% (female) increment in MCA and 10.0% (male) and 12.5% (female) increment in V5, respectively. However, there were no significant correlations between changes in the subjective and objective parameters. CONCLUSION: ENDs significantly improve the subjective sensation of nasal respiration and increase MCA and nasal cavity volume in healthy Korean adults. However, this improvement in nasal patency does not always coincide with the improvement in the subjective feeling of nasal respiration.