Peak Inspiratory Flow Rate as a Prerequisite for Prescription of Inhaler Devices: A Cross-sectional Study

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dc.contributor.authorBiswas, Sen_US
dc.contributor.authorKarahyla, JKen_US
dc.contributor.authorSinghal, Sen_US
dc.contributor.authorNehra, Ten_US
dc.contributor.authorYadav, A.en_US
dc.date.accessioned2025-05-12T09:38:10Z
dc.date.available2025-05-12T09:38:10Z
dc.date.issued2024-12
dc.description.abstractInhaler therapy has become the mainstay of treatment in obstructive airway diseases. Although patients, and to a certain extent doctors also, were not initially comfortable with inhalation devices, they have now become the standard of care in chronic obstructive pulmonary disease (COPD) and asthma. However, the choice of inhaler device prescribed in different subsets of patients is still not clear. Prescription of a device depends upon age, dexterity, hand–mouth coordination, and peak inspiratory flow rates (PIFR). Prescription of wrong inhaler and wrong technique is not uncommon. In our study, 52.6% cases had prescription of wrong inhaler device, as per their PIFR. Physicians often do not consider the PIFR and the respiratory effort of the patient, while advising inhaler device. Only 43% patients with asthma had an adequate asthma control [asthma control test (ACT) > 19]. One of the main causes of a general inability to use an inhaler device properly results from the generation of an inadequate PIFR. It is more pronounced in those using dry powder inhalers (DPI), as it requires a higher effort-dependent inspiratory flow rate. PIFR of patients was divided into four groups, ?30, 31–60, 61–90, and >90 L/minute. The required PIFR was taken as 30–60 L/minute for metered dose inhaler (MDI) and >60 L/minute for DPI. A positive correlation was noted for PIFR and advice to change the device as per the readings (p = 0.05). A positive correlation was also noted with PIFR compared to smoking/biomass use (p = 0.002). Thus, clinicians should advise inhalers as per PIFR and also continue to monitor PIFR on subsequent visits.en_US
dc.identifier.affiliationsSenior Resident, Department of Respiratory Medicine, Maharishi Markandeshwar Institute of Medical Sciences and Research (MMIMSR), Ambala, Haryana, Indiaen_US
dc.identifier.affiliationsProfessor and HOD, Department of Respiratory Medicine, Maharishi Markandeshwar Institute of Medical Sciences and Research (MMIMSR), Ambala, Haryana, Indiaen_US
dc.identifier.affiliationsProfessor, Department of Respiratory Medicine, Maharishi Markandeshwar Institute of Medical Sciences and Research (MMIMSR), Ambala, Haryana, Indiaen_US
dc.identifier.affiliationsAssistant Professor, Department of Respiratory Medicine, Maharishi Markandeshwar Institute of Medical Sciences and Research (MMIMSR), Ambala, Haryana, Indiaen_US
dc.identifier.affiliationsAssistant Professor, Department of Respiratory Medicine, Maharishi Markandeshwar Institute of Medical Sciences and Research (MMIMSR), Ambala, Haryana, Indiaen_US
dc.identifier.citationBiswas S, Karahyla JK, Singhal S, Nehra T, Yadav A.. Peak Inspiratory Flow Rate as a Prerequisite for Prescription of Inhaler Devices: A Cross-sectional Study. Journal of the Association of Physicians of India. 2024 Dec; 72(12): 27-29en_US
dc.identifier.issn0004-5772
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/247350
dc.languageenen_US
dc.publisherJournal of Indian Medical Associationen_US
dc.relation.issuenumber12en_US
dc.relation.volume72en_US
dc.source.urihttps://doi.org/10.59556/japi.72.0741en_US
dc.titlePeak Inspiratory Flow Rate as a Prerequisite for Prescription of Inhaler Devices: A Cross-sectional Studyen_US
dc.typeJournal Articleen_US
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