Vascular trauma associated with routine spinal anaesthesia.
PMID 10417455 · Anaesthesia · 1999 · DOI 10.1046/j.1365-2044.1999.00957.x
Authors: P R Knowles; N P Randall; A S Lockhart
Abstract
Samples of cerebrospinal fluid obtained from 130 patients undergoing spinal anaesthesia were examined microscopically. Subarachnoid puncture was performed using either a 25G Whitacre or 25G Quincke spinal needle. Two samples were collected from each patient and the red blood cell count of the second sample collected was taken as a measure of the vascular trauma associated with the procedure. Red blood cells were seen in 50 (38%) of these samples, of which 18 (14%) contained > 100 red blood cells.mm-3. Paraesthesia was felt by 11 (8.5%) patients and the occurrence of paraesthesia was associated with significantly raised red blood cell counts (p < 0.0001). There was also a correlation between the number of needle passes made at lumbar puncture and the red blood cell count in the sample (p < 0. 0001). Neither spinal needle type nor antiplatelet drug therapy influenced red blood cell counts (p = 0.66 and 0.37, respectively). These findings suggest that routine spinal anaesthesia is often complicated by minor degrees of vascular trauma, especially when paraesthesiae or technical difficulty occur at subarachnoid puncture.
Aged; Aged, 80 and over; Anesthesia, Spinal; Erythrocyte Count; Female; Humans; Male; Needles; Paresthesia; Spinal Puncture; Subarachnoid Space; Wounds, Penetrating
Cite
P R Knowles; N P Randall; A S Lockhart. Vascular trauma associated with routine spinal anaesthesia. Anaesthesia (1999). PMID 10417455. DOI 10.1046/j.1365-2044.1999.00957.x.