The changes in Blood Pressure in Patients Undergoing Spinal Anesthesia According to the Size of Spinal Needle (G22 versus G24): Case Reference Study

Authors

  • Ahmed Matrood Kadhim1 , Salman Abbas Badi 1, Watheq Maeh Naji1

DOI:

https://doi.org/10.37506/ijfmt.v14i3.10572

Keywords:

blood pressure, spinal anesthesia according, spinal needle (G22 versus G24)

Abstract

Background: Previous studies of patients with spinal anesthesia prior to sympathectomy revealed that

vasodilatation and hypotension, with subsequent reduction in arterial pressure, were the most common side

effects (observed in more than 30% of patients). Hypotension in epidural anesthesia was stated to be more

gradual and less extreme than in spinal anesthesia when a comparable amount of anesthesia was given.

Aim of the study: In the current study, we are aiming to evaluate the effect of different size of spinal needle

on development of possible blood pressure changes throughout the spinal anesthesia procedure.

Patients and Methods: The current observational case reference study was carried out at Al-Diwaniyah

Teaching Hospital in Al-Diwaniyah Province, Iraq. The beginning of the study is dated back to the 3rd of

April 2018 and the study continued till September the 15th 2019. It included 60 patients undergoing spinal

anesthesia for various surgical operations. In 30 patients a spinal needle of 22 gauge was used whereas in

the second group (n = 30), a spinal needle of gauge 24 was used. All patients were instructed to be nil by

mouth overnight.

Results: In group 1 (22G), mean systolic blood pressure showed gradual reduction, 139.00 ±8.35 mmHG,

120.67 ±11.43 mmHg, 106.00 ±11.02 mmHG and 97.33 ±10.15 mmHg; similarly, in group 2 (24G) mean

systolic blood pressure showed gradual reduction, 144.00 ±10.37 mmHG, 138.00 ± 7.61 mmHg, 131.33

±9.00 mmHG and 131.67 ±11.40 mmHg; however, the rate of reduction in group 2 (G24) was less than that

seen in case of group 1 (G22). In group 1 (22G), mean diastolic blood pressure showed gradual reduction,

84.00 ±7.24 mmHG, 72.00 ±6.64 mmHg, 61.33 ±9.73 mmHG and 54.00 ±8.94 mmHg; similarly, in group

2 (24G) mean diastolic blood pressure showed gradual reduction, 87.33 ±7.85 mmHG, 81.33 ±7.30 mmHg,

77.33 ±10.15 mmHG and 78.00 ±5.51 mmHg; however, the rate of reduction in group 2 (G24) was less than

that seen in case of group 1 (G22).

Conclusion: It appears that the use of narrower spinal needle is recommended as it is associated with

significantly less drop in both systolic and diastolic blood pressure, thus less hemodynamic disturbances in

patients undergoing spinal anesthesia for various indications

Author Biography

Ahmed Matrood Kadhim1 , Salman Abbas Badi 1, Watheq Maeh Naji1

1 Anesthesia and Intensive Care Specialist / Al-Diwaniyah Teaching Hospital / Department of Anesthesia / Al

Diwania / Iraq

Published

2020-07-30

How to Cite

Ahmed Matrood Kadhim1 , Salman Abbas Badi 1, Watheq Maeh Naji1. (2020). The changes in Blood Pressure in Patients Undergoing Spinal Anesthesia According to the Size of Spinal Needle (G22 versus G24): Case Reference Study. Indian Journal of Forensic Medicine & Toxicology, 14(3), 1307-1313. https://doi.org/10.37506/ijfmt.v14i3.10572