Abstract
An apparatus was deviced allowing to shift from CPAP breathing by nasal prongs to nasal IPPV upon activation of the alarm of bradycardia (HR < 100/min) from the monitor attached to the patient. In 5 infants with apnoea of prematurity (bw 850-1200 g; g.a. 27-29 wks), HR, thoracic impedance and pressure in the respiratory circuit were continuously recorded, and consecutive periods with CPAP alone or with CPAP plus monitor-activated IPPV (MAI PPV) were compared. Termination of the spells was obtained by current procedures in the control periods, and following IPPV alone in most of the spells during MAIPPV periods. With MAIPPV, unquestionable immediate ventilation (according to thoracic impedance tracings) was obtained only in part of the spells. Nevertheless in 3 out of the 5 infants the following significant differences were observed with MAIPPV: shorter duration of bradycardia (m̄ 11-13 sec vs 19-23 sec); lower incidence of bradycardia > 20 sec (0-13% vs 43-62%); higher minimum HR (m̄ 68-75/min vs 53-58/min). In the remaining 2 infants no significant differences were observed.
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Panero, A., Nodari, S., Agostino, R. et al. Monitor-activated IPPV applied by nasal prongs for treatment of apnoea of prematurity. Pediatr Res 13, 77 (1979). https://doi.org/10.1203/00006450-197901000-00045
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DOI: https://doi.org/10.1203/00006450-197901000-00045
