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KMID : 0363120220350020224
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Korean Journal of Pain
2022 Volume.35 No. 2 p.224 ~ p.230
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Risk factors associated with repeated epidural blood patches using autologous blood
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Oh Ah-Ran
Park Jung-Chan
Jeong Ji-Seon
Lee Jin-Young
Choi Ji-Won
Kim Ha-Ra
Sim Woo-Seog
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Abstract
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Background: An epidural blood patch (EBP) is a procedure to treat intracranial hypotension that does not respond to conservative treatment. EBPs are commonly repeated when the symptoms persist. In this study, we used a large single-center retrospective cohort and evaluated the factors associated with repeated EBPs.
Methods: From January 2010 to December 2020, a total of 596 patients were treated with EBPs for intracranial hypotension. We evaluated the factors associated with repeated EBPs in the entire population, in patients with spontaneous intracranial hypotension (SIH), and in those with available myelographies.
Results: In a total of 596 patients, 125 (21.1%) patients required repeated EBPs, and 96/278 (34.5%) in SIH and 29/314 (9.2%) in iatrogenic population. In patients with SIH, international normalized ratio (INR) and cerebrospinal fluid (CSF) leakage on myelographies consistently exhibited significant associations (odds ratio [OR], 1.38; 95% confidence interval [CI], 1.02?1.87; P = 0.043 and OR, 2.18; 95% CI, 1.28?3.69; P = 0.004). In patients with iatrogenic injury, INR and CSF leakage on myelogram did not show difference in repeated EBPs.
Conclusions: Repeated EBPs may be more frequently required in patients with SIH. Prolonged INR and CSF leakage were associated with repeated EBPs in patient with SIH. Further studies are needed to determine factors associated with repeated EBP requirements.
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KEYWORD
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Blood Patch, Epidural, Cerebrospinal Fluid Leak, Headache, Intracranial Hypotension, Pain Management, Patient Outcome Assessment, Post-Dural Puncture Headache, Therapeutics
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