ERJ open research · 2025
Efficacy of shankh blowing on moderate sleep apnoea: a randomised control trial.
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Sharma Krishna K, Gupta Rajeev, Choyal Titiksha, Sharma Krishna Kumar, Sharma Dinesh, Sharma Tapesh
Аннотация
OBJECTIVES: The aim was to determine the effect of shankh (conch shell) blowing on sleep-related outcomes in individuals with moderate obstructive sleep apnoea (OSA).
METHODS: This was a prospective open-label randomised control trial with parallel groups including individuals with daytime sleepiness and recent moderate OSA diagnosis. Participants received either intervention of shankh blowing or a sham procedure (deep-breathing exercise) for 6 months. The primary outcome included daytime sleepiness (Epworth Sleepiness Scale; ESS) with two secondary outcomes of sleep quality (Pittsburgh Quality of Sleep Index; PSQI) and the apnoea-hypopnoea index (AHI). Linear mixed-effects models were used to assess outcomes.
RESULTS: Among 30 individuals with moderate OSA, 16 were randomised to the control group and 14 to the intervention group using unrestricted randomisation. Participants in the intervention group had a greater improvement in sleepiness with a 34% reduction in ESS score (change, -5.0 points, 95% CI -8.06- -1.93), and a significant change in the mean difference of the ESS score (-4.69 points, 95% CI -8.39- -1.007; p=0.0145) between groups at the end of the intervention. Sleep quality (PSQI score; change, -1.8 points, 95% CI -3.3- -0.26) and AHI (change, -4.4 events·h-1, 95% CI -7.6- -1.2) were more reduced in the intervention group at 6 months, with a mean between-group difference of -3.1 points for PSQI score and -5.62 events·h-1 for AHI.
CONCLUSIONS: The observed improvements in daytime sleepiness, sleep quality and AHI suggest that respiratory muscle training through shankh blowing may emerge as a novel therapeutic option for managing OSA symptoms in the future.
METHODS: This was a prospective open-label randomised control trial with parallel groups including individuals with daytime sleepiness and recent moderate OSA diagnosis. Participants received either intervention of shankh blowing or a sham procedure (deep-breathing exercise) for 6 months. The primary outcome included daytime sleepiness (Epworth Sleepiness Scale; ESS) with two secondary outcomes of sleep quality (Pittsburgh Quality of Sleep Index; PSQI) and the apnoea-hypopnoea index (AHI). Linear mixed-effects models were used to assess outcomes.
RESULTS: Among 30 individuals with moderate OSA, 16 were randomised to the control group and 14 to the intervention group using unrestricted randomisation. Participants in the intervention group had a greater improvement in sleepiness with a 34% reduction in ESS score (change, -5.0 points, 95% CI -8.06- -1.93), and a significant change in the mean difference of the ESS score (-4.69 points, 95% CI -8.39- -1.007; p=0.0145) between groups at the end of the intervention. Sleep quality (PSQI score; change, -1.8 points, 95% CI -3.3- -0.26) and AHI (change, -4.4 events·h-1, 95% CI -7.6- -1.2) were more reduced in the intervention group at 6 months, with a mean between-group difference of -3.1 points for PSQI score and -5.62 events·h-1 for AHI.
CONCLUSIONS: The observed improvements in daytime sleepiness, sleep quality and AHI suggest that respiratory muscle training through shankh blowing may emerge as a novel therapeutic option for managing OSA symptoms in the future.