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Year : 2020  |  Volume : 64  |  Issue : 11  |  Page : 971-978

Effect of reinsertion of the spinal needle stylet after spinal anaesthesia procedure on post dural puncture headache in women undergoing caesarean delivery

Department of Anaesthesia and Intensive Care, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India

Correspondence Address:
Dr. Prakash Smita
C 17 HUDCO Place, New Delhi - 110 049
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ija.IJA_1080_20

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Background and Aims: Post dural puncture headache (PDPH) following caesarean delivery (CD) is a cause for concern for anaesthesiologists. We aimed to study the effect of reinsertion of the stylet after spinal anaesthesia procedure, prior to spinal needle removal, on the incidence of PDPH in women undergoing CD. We also evaluated the risk factors associated with PDPH. Methods: In this randomised, double-blind study in a tertiary care hospital, 870 American Society of Anesthesiologists (ASA) II/III women undergoing CD under spinal anaesthesia were randomly divided into-GroupA (n = 435): stylet reinsertion before spinal needle removal and Group B (n = 435): spinal needle removal without stylet reinsertion. All patients were questioned for occurrence of PDPH at various time-points. Statistical calculations were done using Statistical Package for the Social Sciences (SPSS) 17 version program for Windows. Results: Sixty-two (7.1%) patients developed PDPH; 27 (6.2%) patients with stylet reinsertion and 35 (8.0%) patients in those with no stylet reinsertion; P = 0.389. The onset of headache was significantly delayed in patients with stylet reinsertion (16.2 ± 6.7 and 13.2 ± 4.3 h, respectively); P = 0.041 and they had greater severity of PDPH compared with those with no stylet reinsertion; P = 0.002. Factors significantly associated with PDPH were hypothyroidism, tea habituation, number of skin punctures and needle redirections, first pass success rate, occurrence of paraesthesia and contact with bone, intraoperative hypotension and time to ambulation. Conclusions: Reinsertion of the stylet before spinal needle removal did not influence the incidence of PDPH. The onset of PDPH was delayed and the severity of headache was greater in women in whom reinsertion of the stylet was done.

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