36. EVALUATE PERFUSION INDEX AS A PREDICTOR OF HYPOTENSION FOLLOWING SPINAL ANESTHESIA FOR CAESAREAN SECTION AT THAI NGUYEN NATIONAL HOSPITAL

Pham Thi Lan1, Dang Quang Dung2, Nguyen Van Nghi1
1 Thai Nguyen University of Medicine and Pharmacy
2 Thai Nguyen National Hospital

Main Article Content

Abstract

Objective: Evaluate perfusion index as a predictor of hypotension following spinal anesthesia for caesarean section.


Research methods: Studying ninety pregnant women with full-term parturients, aged 18- 40 years old belonging to ASA physical status I-II, having singleton pregnancy undergoing caesarean section under spinal anesthesia. Investigation the variation of perfusion index and mean arterial blood pressure at the study time points after spinal anesthesia.


Results: The average perfusion index at all times of the study was both greater than 3 and less than 5. Perfusion index before spinal anesthesia and hypotension after spinal anesthesia had a significant, strong, negative correlation, statistical. The cut-off point of perfusion index in predicting hypotension after spinal anesthesia for cesarean section was 3.45 with a sensitivity of 76% and a specificity of 58%.


Conclusion: Perfusion index is valuable to early predict of hypotension following spinal anesthesia for cesarean section.

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References

[1] Toyama S et al, Perfusion index derived from a pulse oximeter can predict the incidence of hypotension during spinal anaesthesia for Caesarean delivery, 2013, 111(2), p. 235-241.
[2] Mallawaarachchi RP et al, Perfusion index as an early predictor of hypotension following spinal anesthesia for cesarean section, 2020, 10(1), p. 38.
[3] Ginosar Y et al, Pulse oximeter perfusion index as an early indicator of sympathectomy after epidural anesthesia, 2009, 53(8), p. 1018-1026.
[4] Zhou N et al, S-ketamine used during anesthesia induction increases the perfusion index and mean arterial pressure after induction: A randomized, double-blind, placebo-controlled trial, 2022, p. 106312.
[5] Huang B et al, Oximetry-derived perfusion index as an early indicator of CT-guided thoracic sympathetic blockade in palmar hyperhidrosis, 2013, 68(12), p. 1227-1232.
[6] Lal J, et al, A study to evaluate perfusion index as a predictor of hypotension following spinal anesthesia for caesarean section, 2022, 38(2), p. 294-299.
[7] Duggappa DR et al, Perfusion index as a predictor of hypotension following spinal anaesthesia in lower segment caesarean section, 2017, 61(8), p. 649.