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RAPID SHALLOW BREATHING INDEX CHARACTERISTICS IN PEDIATRIC VENTILATOR WEANING
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Abstract
included: age, sex, history of prematurity, underlying diseases, diagnosis, successful weaning, and failed weaning. The Rapid Shallow Breathing Index (RSBI) was recorded at two time points: at the beginning of the SBT (RSBI_0) and at the 30th minute of the SBT (RSBI_30). RSBI values were measured using the E360 ventilator or calculated using the formula: respiratory rate divided by tidal volume (f/Vt), with the unit of breaths/min/ml/kg. Data were analyzed using SPSS software version 20.0. Results: From September 2022 to March 2023, a total of 106 patients met the inclusion criteria for the study, of which 98 patients successfully weaned from mechanical ventilation and 8 patients experienced weaning failure. The mean RSBI_0 and RSBI_30 values in the successful weaning group were 4.62 ± 1.53 and 6.08 ± 1.26 breaths/min/ml/kg, respectively, significantly lower than those in the failure group, which were 5.79 ± 0.70 and 6.97 ± 0.72 breaths/min/ml/kg (p < 0.05). Among patients with weaning failure, the mean RSBI_0 and RSBI_30 values in those with a history of preterm birth were 5.6 ± 1.1 and 6.7 ± 1.2 breaths/min/ml/kg; in those with underlying conditions, 5.6 ± 0.0 and 6.1 ± 0.1 breaths/min/ml/kg; and in those with respiratory diseases, 5.6 ± 0.8 and 6.7 ± 0.7 breaths/min/ml/kg. These values were all lower than those in patients without corresponding risk factors: no history of preterm birth (5.9 ± 0.4 and 7.3 ± 0.4 breaths/min/ml/kg), no underlying conditions (5.9 ± 0.4 and 7.3 ± 0.4 breaths/min/ml/kg), and no respiratory disease (5.9 ± 0.2 and 7.4 ± 0.1 breaths/min/ml/kg), with p < 0.05. Conclusion: The successful weaning group had lower RSBI_0 and RSBI_30 values than the failed weaning group. In the failed group, patients with a history of prematurity, underlying diseases, or respiratory conditions had lower RSBI_0 and RSBI_30 values compared to those without such factors.
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Keywords
ventilator weaning, RSBI_0, RSBI_30
References
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