Key result
Age significantly affected haemodynamic responses to tracheal intubation, with the elderly showing the greatest systolic pressure increase (15%) and middle-aged the greatest heart rate increase (40%).
Why the study?
Does age affect the haemodynamic response (heart rate and blood pressure) to tracheal intubation in ASA 1 or 2 patients?
Observational (n=90)
Does age affect the haemodynamic response (heart rate and blood pressure) to tracheal intubation in ASA 1 or 2 patients?
Age significantly influences the haemodynamic response to tracheal intubation, with elderly patients experiencing the greatest increase in systolic blood pressure but the least increase in heart rate.
Answers are grounded in this paper and cite their sources.
May support age-specific haemodynamic monitoring during intubation; hypothesis-generating and requires prospective confirmation before changing practice.
The effect of age on the haemodynamic response to tracheal intubation was studied. Ninety ASA 1 or 2 patients were divided into three groups of 30 each based on age; ie., young (18-25 years), middle-aged (40-50 years) and elderly (65-80 years). The haemodynamic response after tracheal intubation was observed as percentage change in heart rate and blood pressure compared to the baseline. Inter-group comparison was also done at different time points. The greatest percentage change in the systolic arterial pressure after tracheal tube insertion was seen in the elderly group (15%). The increase in systolic arterial pressure was significantly less in theyounggroup compared with the two older groups at one, two, three and four minutes post-intubation. The greatest percentage increase in the diastolic blood pressure compared to the baseline was seen in the middle aged group (24%). The elderly and young patients showed a significant difference in the diastolic blood pressure response only at one minute post-intubation. The heart rate response was greatest in the middle-aged patients (40%) and least in the elderly (16%). These differences may have clinical significance and should be considered in assessing and performing research into the haemodynamic response to intubation.
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Ismail et al. (2002) conducted an observational in Tracheal intubation (n=90). Age vs. Other age groups was evaluated on Percentage change in heart rate and blood pressure compared to baseline. Age significantly affected haemodynamic responses to tracheal intubation, with the elderly showing the greatest systolic pressure increase (15%) and middle-aged the greatest heart rate increase (40%).
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