Patterns of Instability Associated With Endotracheal Suctioning in Infants With Single-Ventricle Physiology

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Abstract

Background

In infants with single-ventricle physiology, endotracheal suctioning poses risks because of the instability between pulmonary and systemic blood flow.

Objective

To examine processes and adverse events associated with endotracheal suctioning in the first 48 hours after 3 surgical procedures: the Norwood or Norwood-Sano procedure, pulmonary artery banding, and the modified Blalock-Taussig shunt.

Methods

Prospective observational study in a pediatric intensive care unit.

Results

Bedside nurses collected data from 211 episodes of endotracheal suctioning in 24 infants. Most (62%,130/211) suction episodes were unplanned; 38% (81/211) were planned. The most common reason for unplanned suctioning was arterial desaturation (48%, 62/130 episodes). The infants' oxygen saturation levels before suctioning ranged from 27% to 86%. Serious adverse events occurred in 9% (19/211) of suction episodes. In 8 (42%) of the episodes involving a serious adverse event, the patient received no additional intravenous bolus of analgesic or muscle relaxant before suctioning; in 8 episodes (42%), the patient received both an analgesic and a relaxant; in 3 episodes (16%), the patient received either an analgesic or a relaxant but not both. More adverse events occurred with open suctioning (68%, 13/19) than with closed suctioning (32%, 6/19). Most adverse events (68%, 13/19) occurred during the night shift.

Conclusions

Significant hemodynamic instability and adverse events occur during routine suctioning in infants with single-ventricle physiology after surgical palliation. (American Journal of Critical Care. 2017;26:388-394)

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