Spontaneous C1-2 CSF Leak Treated with High Cervical Epidural Blood Patch

Epidural blood patch for spontaneous intracranial hypotension with subdural hematoma: A case report and review of literature

BACKGROUND

Cerebrospinal fluid (CSF) leakage at C1/2 in spontaneous intracranial hypotension (SIH) is rare. Subdural hematoma (SDH), a serious complication of SIH, may lead to neurological deficits. This report presents a case of SDH after spontaneous C1/2 CSF leakage, which was treated with a targeted epidural blood patch (EBP).

CASE SUMMARY

A 60-year-old man with no history of trauma was admitted to our hospital with orthostatic headache, nausea, and vomiting. Brain computed tomography imaging revealed bilateral, subacute to chronic SDH. Brain magnetic resonance imaging (MRI) findings were SDH with dural enhancement in the bilateral cerebral convexity and posterior fossa and mild sagging, suggesting SIH. Although the patient underwent burr hole trephination, the patient’s orthostatic headache was aggravated. MR myelography led to a suspicion of CSF leakage at C1/2. Therefore, we performed a targeted cervical EBP using an epidural catheter under fluoroscopic guidance. At 5 d after EBP, a follow-up MR myelography revealed a decrease in the interval size of the CSF collected. Although his symptoms improved, the patient still complained of headaches; therefore, we repeated the targeted cervical EBP 6 d after the initial EBP. Subsequently, his headache had almost disappeared on the 8^th day after the repeated EBP.

CONCLUSION

Targeted EBP is an effective treatment for SDH in patients with SIH due to CSF leakage at C1/2.

Targeted Epidural Blood Patch Treatment for Refractory Spontaneous Intracranial Hypotension in China

Objective  An epidural blood patch (EBP) is the mainstay of treatment for refractory spontaneous intracranial hypotension (SIH). We evaluated the treatment efficacy of targeted EBP in refractory SIH. Methods  All patients underwent brain magnetic resonance imaging (MRI) with contrast and heavily T2-weighted spine MRI. Whole spine computed tomography (CT) myelography with non-ionic contrast was performed in 46 patients, and whole spine MR myelography with intrathecal gadolinium was performed in 119 patients. Targeted EBPs were placed in the prone position one or two vertebral levels below the cerebrospinal fluid (CSF) leaks. Repeat EBPs were offered at 1-week intervals to patients with persistent symptoms, continued CSF leakage, or with multiple leakage sites. Results  Brain MRIs showed pachymeningeal enhancement in 127 patients and subdural hematomas in 32 patients. One hundred fifty-two patients had CSF leakages on heavily T2-weighted spine MRIs. CSF leaks were also detected on CT and MR myelography in 43 and 111 patients, respectively. Good recovery was achieved in all patients after targeted EBP. No serious complications occurred in patients treated with targeted EBP during the 1 to 7 years of follow-up. Conclusions  Targeted and repeat EBPs are rational choices for treatment of refractory SIH caused by CSF leakage.

Spontaneous Intracranial Hypotension Treated with a Targeted CT-Guided Epidural Blood Patch

Spontaneous intracranial hypotension (SIH) is an important cause of new daily persistent headache. It is thought to be due to spontaneous spinal cerebrospinal fluid (CSF) leaks, which probably have a multifactorial etiology. The classic manifestation of SIH is an orthostatic headache, but other neurological symptoms may be present. An epidural blood patch is thought to be the most effective treatment, but a blind infusion may be ineffective. We describe the case of a young man who developed an acute severe headache, with pain worsening when assuming an upright posture and relief gained with recumbency. No history of previous headache, recent cranial or cervical trauma, or invasive procedures was reported. Magnetic resonance imaging showed pachymeningeal enhancement and other features consistent with SIH and pointed towards a cervical CSF leak site. After failure of conservative treatment, a targeted computer tomography-guided EBP was performed, with complete recovery.

Cervical epidural blood patch--A literature review

OBJECTIVE

Epidural blood patches (EBP) are rarely performed at the cervical levels, primarily due to fear of neurological complications such as spinal cord compression. We reviewed the literature to provide an evidence-based review of performance of cervical EBPs, with a specific focus on indication, technique, safety, and efficacy.

DESIGN

A comprehensive electronic literature search was done to include studies that reported on performance of cervical EBPs in patients with CSF leak at the cervical level. Data regarding indication, level of CSF leak, level of cervical EBP, volume of blood used, efficacy, and complications were collected.

RESULTS

A total of 15 studies, reporting on 19 patients were included. All patients presented with a headache that increased in the standing position, and improved in the supine position. All patients were identified to have a CSF leak at the cervical level. Eight patients first underwent a lumbar EBP, without complete, long-term relief. All these patients, along with 11 patients who did not undergo a lumbar EPB prior to cervical EBP, reported complete, long-term pain relief. EBPs were mostly done in the prone position, using imaging guidance. An average of 5-8 mL of autologous blood was injected in the epidural space. No major neurological complications were reported in any patient.

CONCLUSION

The review suggests that cervical EBP can be performed for cervical CSF leaks associated with positional headache without a significant risk of serious adverse events.

CLASSIFICATION OF EVIDENCE

Our review provides Class II level of evidence that cervical EBPs are safe and effective in reliving positional headache due to CSF leak.