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Neumología y cirugía de tórax
versión impresa ISSN 0028-3746
Resumen
PESANTEZ-ABRIL, Ángela Andrea; ALVA-CHAIRE, Adriana del Carmen y CUEVAS-SCHACHT, Francisco Javier. Chronic hypoventilation in pediatric patients at moderate altitude. Neumol. cir. torax [online]. 2022, vol.81, n.2, pp.94-102. Epub 28-Ago-2023. ISSN 0028-3746. https://doi.org/10.35366/108495.
Introduction:
Chronic alveolar hypoventilation is defined as the clinical condition by increased PaCO2 with normal pH Figures; at sea level ≥ 45 mmHg and in Mexico City (2200 masl) ≥ 38 mmHg, the latter due to a decrease in the partial and alveolar pressure of oxygen due to a drop in barometric pressure. Altitude generates increased work of breathing, increased volume/minute to maintain adequate PO2, eliminating CO2, negatively impacting ventilatory control in patients with chronic lung diseases.
Objective:
To describe the main characteristics of pediatric patients with chronic alveolar hypoventilation at moderate altitude.
Material and methods:
Observational, descriptive, cross-sectional, retrospective study, in patients from zero to 18 years of age in the period 2007 to 2020 treated at the National Institute of Pediatrics, Mexico City.
Results:
17 patients with chronic alveolar hypoventilation were found, with a median age of 6 years, in 58.82% of cases the etiology was peripheral; the most frequent daytime symptoms were tiredness and irritability (41.2%) and among the nocturnal symptoms were snoring (41.2%) and respiratory pauses (29.4%). In 41.2% some type of non-invasive ventilation device (NIV) was used; decrease in complications and symptoms was observed after one year of follow-up in both the groups with and without NIV; although without statistical significance.
Conclusions:
It was established that the main causes are peripheral, although NIV showed benefits, its use was recorded in less than half of the cases.
Palabras llave : chronic alveolar hypoventilation; clinical manifestations; non-invasive ventilation; evolution; complications.