Volumetric capnography: abilities in practical pulmonology

Абросимов, В. Н.; Бяловский, Ю Ю; Subbotin, Sergei V.; Ponomareva, Irina

doi:10.18093/0869-0189-2017-27-1-65-70

Cited by 2 publications

(3 citation statements)

References 22 publications

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“…ГВС относят к соматоформным расстройствам -группе психических расстройств невротической природы, отличительная черта которых -многочисленные признаки соматических заболеваний, не подтверждающиеся объективными клиническими исследованиями. Это состояние характеризуется чрезмерной вентиляцией, гипокапнией и респираторным алкалозом, что проявляется разнообразной клинической симптоматикой [5].…”

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“…), что затрудняет его понимание и выявление [4]. В настоящее время не только нет общепринятых методов диагностики, но даже не выработано единого определения ГВС [1,5]. В клинической практике встречается и коморбидность бронхиальной астмы (БА) с ГВС, что затрудняет их дифференциальную диагностику [6].…”

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“…Многообразие клинических проявлений ГВС значительно затрудняет диагностику. При БА и ГВС не всегда выявляют бронхиальную обструкцию или гипервентиляцию лабораторно-инструментальными методами [1,4,5,7].…”

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Experience of the use of bronchophonography in the diagnosis of hyperventilation syndrome

Magomedova

Алиевна²,

Guseynov

et al. 2019

Kazan Med J

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Aim. To study the capability of applying the method of acoustic analysis of respiration (bronchophonography) in the diagnosis of hyperventilation syndrome and mild bronchial asthma and in differential diagnosis between them. Methods. 97 subjects were examined (35 men and 62 women, average age 36.4±13.4 years), divided into the groups: control (healthy subjects) - 38 subjects (18 men and 20 women, average age 33.6±14.0 years), patients with mild bronchial asthma - 37 subjects (12 men and 25 women, average age 40.7±13.7 years), patients with hyperventilation syndrome - 22 subjects (5 men and 17 women, average age 35.0±12.6 years). All patients, except for general clinical examination, underwent spirometry, bronchophonography and Nijmegen questionnaire. Results. Acoustic breathing patterns of all groups were formed, spirometric and bronchophonographic indicators were analyzed. Bronchophonography revealed significant intergroup differences in different frequency ranges in groups of patients with bronchial asthma and hyperventilation syndrome as well as the absence of those between healthy individuals and patients with hyperventilation syndrome. At the same time, the data of spirometry did not allow differentiation of mild bronchial asthma and hyperventilation syndrome and in most cases did not differ from those of healthy individuals. Conclusion. Spirometry cannot serve as a reliable diagnostic criterion in the diagnosis and differential diagnosis of hyperventilation syndrome and mild bronchial asthma; differences in acoustic indices of respiration in bronchophonography allow such differentiation.

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Experience of the use of bronchophonography in the diagnosis of hyperventilation syndrome

Magomedova

Алиевна²,

Guseynov

et al. 2019

Kazan Med J

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Carbon dioxide elimination pattern at cardiopulmonary exercise testing in patients with low ejection fraction value

Kamenskaya

Логинова

Chernyavskiy

et al. 2020

Pulʹmonologiâ (Mosk.)

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The objective of this study was to evaluate partial pressure of end tidal carbon dioxide (PetCO2) over time on exertion (E) and its predictive value in evaluation of risk of unfavorable outcome in patients with low ejection fraction (EF) value.Materials and Methods. Patients (n = 53) with pronounced chronic heart failure (CHF), included in heart transplantation waiting list, were enrolled in the prospective study. All patients underwent cardiopulmonary exercise testing (CPET). Mortality or INCOR left ventricle bypass system implantation according to vital indications within 1 year of follow-up were evaluated as an end-point.Results. Patients with CHF and low EF were characterized by low parameters of E tolerance and peak oxygen consumption (10.4 (9.6–11.7) ml/min/kg). The average PetCO2 level by group was 30.4 (28.3–33.0) mm Hg; in 32% of patients this value decreased or did not change in CPET compared with that in resting state. The significant relationship between increased risk of unfavorable outcome within 1 year of follow-up with low baseline PetCO2 value (odds ratio (OR) – 0.22 (0.05–0.87); p = 0.020) and absence of its increment in PE (OR – 0.16 (0.10–0.54); p = 0.009) was observed.Conclusion. The significant predictive factors of unfavorable outcome within 1 year of follow-up in patients with pronounced CHF and low EF include PetCO2 value in resting state, as well as PetCO2 change over time after E challenge.

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Volumetric capnography: abilities in practical pulmonology

Cited by 2 publications

References 22 publications

Experience of the use of bronchophonography in the diagnosis of hyperventilation syndrome

Experience of the use of bronchophonography in the diagnosis of hyperventilation syndrome

Carbon dioxide elimination pattern at cardiopulmonary exercise testing in patients with low ejection fraction value

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