Cerebral Blood Flow in Low Intracranial Pressure Headaches—What Is Known?

Nowaczewska, Magdalena; Kaźmierczak, H

doi:10.3390/brainsci10010002

Cited by 13 publications

(6 citation statements)

References 48 publications

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“…Any change in intracranial pressure caused by intracranial hypotension may influence the cerebral blood flow. Most studies revealed the intracranial vessel dilatation, a cerebral blood flow increase, a flow velocity decrease, and cerebral venous thrombosis whereas some studies showed intracranial hypotension associated with vasoconstrictions and flow velocity increases [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

Predictors Associated with Outcomes of Epidural Blood Patch in Patients with Spontaneous Intracranial Hypotension

Park

Leem

et al. 2021

JCM

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An autologous epidural blood patch (EBP) is a mainstay of treatment in patients with spontaneous intracranial hypotension (SIH). EBP, however, is less effective for SIH than post-dural puncture headaches. Therefore, patients with SIH frequently require an additional EBP. The aim of this study was to identify factors associated with poor response to EBP. This single-center retrospective observational study used the institutional registry records of 321 patients who underwent EBP between September 2001 and March 2016. Patients were divided into two groups, a poor responder group, consisting of patients who underwent EBP at least three times or more, and a good responder group of patients who experienced sufficient symptom relief after two or fewer EBP. The demographic characteristics, clinical features, radiologic findings, procedural data, and laboratory data were analyzed. Univariate analysis showed that the neutrophil-to-lymphocyte ratio (NLR; p = 0.004) and platelet-to-lymphocyte ratio (p = 0.015) were significantly lower in poor than in good responders. Multivariate analysis found that NLR was the only independent factor associated with a poor response (odds ratio = 0.720; p = 0.008). These findings indicate that a low NLR was associated with three or more EBP administrations for the sufficient improvement of symptoms in patients with SIH.

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Section: Discussionmentioning

confidence: 99%

Predictors Associated with Outcomes of Epidural Blood Patch in Patients with Spontaneous Intracranial Hypotension

Park

Leem

et al. 2021

JCM

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“…CSF circulation can use as a compensatory mechanism in the brain for the clearance of CO2 (29). Based on the MKH hypothesis, there is a decrease in CSF during Intracranial hemorrhage because of the resulting increase in brain volume by increasing blood ow which can be considered an early quantitative biomarker of cerebral edema after ischemic stroke (30).…”

Section: Discussionmentioning

confidence: 99%

The relationship between crying of premature infants with Monro-kellie hypothesis and increase of ventricular CSF Based on Doppler ultrasound findings

Ijabi

Tehranian

Afrisham

et al. 2022

Preprint

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Introduction: Infant crying causes an increase in intracranial pressure which is equivalent to a decrease in CSF and also a decrease in CSF before ischemic and hemorrhagic strokes observed. The object of this study is to evaluate the effect of crying on premature infant brain pressure and the effect of crying on brain autoregulation. Method: In a case-control study, the participants were 53 premature infants with the ability to cry and 43 non-crying premature. Apgar score and after birth blood gases were estimated, and 200 µl capillary samples were collected from the heel for assessment of blood gases before,during and after crying. A transcranial Doppler device used to measure cerebral blood flow volume (CBFV) levels and compared in three sections during, before, and after crying. Results: The CO2 higher level was during crying in comparison with after and before crying (P<0.001). The brain volume was enlarger during crying than after and before crying, as well (P<0.001). The Doppler ultrasound results showed that the higher resistive index (RI) and pulsatility index (PI) occurred during crying than after and before crying (P<0.001). There was the lowest end-diastolic velocity (EDV) and Peak systolic velocity (PSV) during crying than after and before crying (P=0.001).Conclusion: The results suggest that the brain volume has increased during crying, which is associated with simultaneous entry of CSF. In intracranial hemorrhage (IH), there is a decrease in CSF which is accompanied by a decrease in brain activity. Therefore, crying with an increased CSF and brain magnetic activity can probably prevent IH.

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“…Dural tears are one etiology of intraoperative or postoperative cerebrospinal fluid leakage but are not the only mechanism. Intracranial hemorrhage is related to the velocity and volume of cerebrospinal fluid leakage ( 23 ). The mainstream hypotheses can be summarized as follows: (I) intracranial hemorrhage may be caused by brain tissue shift and vascular traction secondary to cerebrospinal fluid leakage-induced low intracranial pressure; (II) intracranial hemorrhage may be caused by vascular rupture as a result of excessive congestion of veins; (III) epidural hematoma is caused by the separation of the dura and skull inner plate as a result of spinal surgery-induced low intracranial pressure; and (IV) subdural hematoma is caused by subdural venous rupture as a result of low intracranial pressure following chronic cerebrospinal fluid leakage.…”

Section: Discussionmentioning

confidence: 99%

Intracranial hemorrhage after spinal surgery: a literature review

Huang¹,

Zhu²,

Qin³

et al. 2022

Ann Transl Med

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Background and Objective: Intracranial hemorrhage following spinal surgery is an infrequent but severe complication. Due to its rarity, the etiology, clinical characteristics, and treatment have not yet been fully elucidated. This literature review analyzed the incidence, clinical manifestations, hemorrhage location, current therapeutic strategies, location of operation, and interval time between surgery and bleeding. The objectives of the article were to provide insights for clinicians to promptly identify and prevent potential cases of intracranial hemorrhage. Methods:The authors queried PubMed and Web of Science databases using predefined keywords and included published literature reporting on intracranial hemorrhage after spinal surgery. Relevant case reports, case series, and reviews describing the mechanism of intracranial hemorrhage after spinal surgery and meeting diagnostic criteria for intracranial hemorrhage related to spinal surgery were included. Clinicodemographc data, presentations symptoms, location, index surgery type, and neurological outcomes after brain hemorrhage. Oxford Centre Level of Evidence guidelines was used to evaluate the quality of included studies. Descriptive statistics were used to synthesize the results.

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Cerebral Blood Flow in Low Intracranial Pressure Headaches—What Is Known?

Cited by 13 publications

References 48 publications

Predictors Associated with Outcomes of Epidural Blood Patch in Patients with Spontaneous Intracranial Hypotension

Predictors Associated with Outcomes of Epidural Blood Patch in Patients with Spontaneous Intracranial Hypotension

The relationship between crying of premature infants with Monro-kellie hypothesis and increase of ventricular CSF Based on Doppler ultrasound findings

Intracranial hemorrhage after spinal surgery: a literature review

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