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The effect of repeated endotracheal suctioning on arterial blood pressure |
Stone KS, Bell SD, Preusser BA |
Applied Nursing Research 1991 Nov;4(4):152-158 |
clinical trial |
3/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: No. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
The purpose of this study was to examine the effects of three lung hyperinflation/suction sequences on mean arterial pressure (MAP). The results indicate both lung hyperinflation (LHS) and suction sequences (SS) significantly increased MAP (p = 0.05) from baseline. There was a mean increase in MAP of 13.72 mmHg over the three lung hyperinflation/suction sequences. The results showed a significant increase in MAP from baseline between SS1 to LHS2 (3.62 mmHg), from LHS2 to SS2 (4.36 mmHg), and from LHS3 to SS3 (2.84 mmHg) at p = 0.05. The increase in MAP was cumulative with each successive lung hyperinflation/suction sequence. Consequently, the number of repeated lung hyperinflation/suction episodes should be limited to only those necessary to maintain airway patency.
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