The nose is the front line defender of the respiratory system and is rich with mechanoreceptors, thermoreceptors, and nerve endings. A time-dependent computational model of transport through nasal models of a healthy human has been used to analyze the fields of physical stresses that may develop at the air-wall interface of the nasal mucosa. Simulations during quiet breathing revealed wall shea...

This paper proposes accurate respiratory rate estimation using nasal breath sound recordings from a smartphone. Specifically, the proposed method detects nasal airflow using a built-in smartphone microphone or a headset microphone placed underneath the nose. In addition, we also examined if tracheal breath sounds recorded by the built-in microphone of a smartphone placed on the paralaryngeal sp...

OBJECTIVE To define, in a group of children with nasal obstruction, the anatomical differences that differentiate those with quiet, unobstructed nocturnal respiration from those with obstructive sleep-related breathing abnormalities (snoring and obstructive sleep apnea). DESIGN Case series. PATIENTS Fifty-nine children aged 3 to 13 years (35 boys and 24 girls) with nasal obstruction and wit...

OBJECTIVE To evaluate the effect on snoring of structural nasal valve dilatation with butterfly spreader grafts in patients with nasal valve insufficiency. DESIGN Retrospective medical chart review and telephone follow-up; mean +/- SD follow-up time, 20.7 +/- 11.34 months (range, 3-48 months). SETTINGS Tertiary care referral center. SUBJECTS A total of 37 snoring patients with nasal valve...

Background: Nasal obstruction, snoring, mouth breathing, ear ache is some of the most common problems encountered in pediatric otorhinolaryngological practice. The cause for above symptoms adenoid hypertrophy. Methods: Patients with age group 4-16 years hypertrophy such as and confirmed by Diagnostic Endoscopy Radiological Investigations were included. Previous H/o surgery adenoidectomy, bleedi...

BACKGROUND Nasal pressure tracing is now being used to measure breathing in ambulatory screening devices for sleep apnoea but it has not been compared with other methods of assessment. METHODS Sleep induced breathing disorders were scored by three different methods of analysis (thermistry, inductive plethysmography, and nasal pressure tracing) in 193 consecutive patients referred to our sleep...

OBJECTIVE This study aimed to evaluate the recruitment of cervical muscles during nasal inspiration before and after breathing and postural exercises on the Swiss Ball in children with Mouth Breathing Syndrome (MBS). METHOD Surface electromyography from the sternocleidomastoid (SCM), sub-occipitals and upper Trapezius muscles was recorded during nasal inspiration, before and at the end of thr...

OBJECTIVE To determine the impact of speech therapy on asthma and allergic rhinitis control in mouth breathing children and adolescents. METHODS This was a quasi-experimental randomized study of 24 mouth breathing patients with asthma and allergic rhinitis, aged from 6 to 15 years. All patients were taking beclomethasone diproprionate through oral inhalation at the start of the study. At enro...

OBJECTIVE To evaluate the effectiveness of using suspension sutures to relieve obstructed nasal breathing caused by nasal valve stenosis. SUBJECTS, MATERIALS, AND METHODS: A nonrandomized pilot study of postrhinoplasty patients presenting with symptoms of obstructed nasal breathing was conducted in a private facial plastic surgery practice. All patients demonstrated nasal valve stenosis with a ...