Cerebral venous thrombosis after lumboperitoneal shunting: A case report.

Lumboperitoneal shunt (LPS) has been an effective treatment of idiopathic normal pressure hydrocephalus (iNPH) but sometimes causes serious complications. Here we present the first reported case of cerebral venous thrombosis (CVT) after LPS. A 76-year-old man underwent LPS for iNPH and a week later developed weakness of the right arm and a generalized tonic-clonic seizure. Brain computed tomography and magnetic resonance imaging showed bilateral subdural hematoma (SDH) and left cortical vein thrombosis. Intravenous heparin was administered, followed by surgical evacuation of the SDH. The patient experienced gradual improvement and was subsequently discharged. It is conceivable that overdrainage of cerebrospinal fluid led to the development of both SDH and CVT. CVT is potentially fatal and should be recognized early as a possible complication after LPS to allow prompt treatment.

The use of Microsurgical Exploration of the External Carotid Artery for Removal of a Retained Microcatheter After Middle Meningeal Artery Embolization Using Live Fluoroscopy: A Technical Note.

BACKGROUND: Fragmentation, disconnection, or entrapment of an in-use microcatheter during neuro-endovascular procedures is a known risk. Often a benign entity, retained catheters are not infrequently observed, but severe complications including thrombus, thromboembolic events, pseudoaneurysm, and limb ischemia have been described, necessitating retrieval. This technical case report demonstrates the safe use of an external carotid artery (ECA) approach for ligation and removal of a retained microcatheter after middle meningeal artery (MMA) embolization. This article also demonstrates the use of live intraoperative fluoroscopy as a surgical adjunct to ensure that the catheter is fully removed without any injury, shearing, or breakage during removal. METHODS: A 66-year-old male patient presented with bilateral subdural hematomas to an outside hospital. He subsequently underwent evacuation of the hematomas followed by a right-sided MMA embolization, complicated by Onyx (Medtronic, Minneapolis, MN) entrapment of the microcatheter in the MMA. The patient was asymptomatic, but there was significant concern about continuing antiplatelet/anticoagulation therapy in the presence of the subdural hematoma. We proceeded with an open surgical approach for catheter retrieval. As the catheter was withdrawn, intraoperative fluoroscopy demonstrated complete removal without any retained fragments. RESULTS: The patient recovered without event and was discharged on postoperative day 1. On follow-up the patient continued to do well without any complications from the fragment that remained in the external carotid circulation. CONCLUSIONS: This case and accompanying video demonstrates the effective use of open ECA surgical approach to retrieve the retained microcatheter after an MMA embolization. This approach allowed for safe and effective removal of the microcatheter while significantly reducing complication risks.

Clinical and neuroimaging characteristics in mild-type infantile acute subdural hematoma: report of four cases.

PURPOSE: Infantile acute subdural hematoma (IASDH) has a limited age distribution and mostly benign clinical features. Mild-type IASDH has a stereotypical clinical course which, however, has been described in only a few studies. METHODS: Four male infants (aged 6-10 months; mean age: 7.5 months) were diagnosed as mild-type IASDH associated with retinal hemorrhage (RH) after suffering from occipital impact in a fall. The present case series reviews their clinical features and neuroimaging findings, including CT and MRI findings. RESULTS: All the infants fell backwards from a standing or sitting position onto a soft surface, striking the occipital region. They began crying on impact and then soon afterwards exhibited seizure-like activity or recurrent vomiting. CT and MRI revealed a thin, unclotted subdural hematoma (SDH) without mass effect or brain parenchymal abnormality. Various degrees of bilateral RH were observed. On the day of symptom onset, all infants returned to baseline, and follow-up more than 5 years revealed normal development with no deficits. CONCLUSIONS: Mild-type IASDH with retinal hemorrhage presents with seizure-like activity or recurrent vomiting preceded by crying after an occipital impact on a soft surface. The clinical course of IASDH is followed by rapid recovery on the day of symptom onset. CT and MRI findings reveal a small, unclotted SDH without a mass effect or cerebral parenchymal abnormality.

Impact of Antithrombotic Medications and Reversal Strategies on the Surgical Management and Outcomes of Traumatic Acute Subdural Hematoma.

OBJECTIVE: Careful hematologic management is required in surgical patients with traumatic acute subdural hematoma (aSDH) taking antithrombotic medications. We sought to compare outcomes between patients with aSDH taking antithrombotic medications at admission who received antithrombotic reversal with patients with aSDH not taking antithrombotics. METHODS: Retrospective review identified patients with traumatic aSDH requiring surgical evacuation. The cohort was divided based on antithrombotic use and whether pharmacologic reversal agents or platelet transfusions were administered. A 3-way comparison of outcomes was performed between patients taking anticoagulants who received pharmacologic reversal, patients taking antiplatelets who received platelet transfusion, and patients not taking antithrombotics. Multivariable regressions, adjusted for injury severity, further investigated associations with outcomes. RESULTS: Of 138 patients who met inclusion criteria, 13.0% (n = 18) reported taking anticoagulants, 16.7% (n = 23) reported taking antiplatelets, and 3.6% (n = 5) reported taking both. Patients taking antiplatelets who received platelet transfusion had longer intraoperative times (P = 0.040) and higher rates of palliative care consultations (P = 0.046) compared with patients taking anticoagulants who received pharmacologic reversal and patients not taking antithrombotics. Across groups, no significant differences were found in frequency of in-hospital intracranial hemorrhage and venous thromboembolism, length of hospital stay, rate of inpatient mortality, or follow-up health status. In multivariable analysis, intraoperative time remained longest for the antiplatelets with platelet transfusion group. Other outcomes were not associated with patient group. CONCLUSIONS: Among surgical patients with traumatic aSDH, those taking antiplatelet medications who receive platelet transfusions experience longer intraoperative procedure times and higher rates of palliative care consultation. Comparable outcomes were observed between patients receiving antithrombotic reversal and patients not taking antithrombotics.

Cerebral sinovenous thrombosis as a cause of subdural hemorrhage in the pediatric population: Is there a correlation?

PURPOSE: Cerebral sinovenous thrombosis is an increasingly recognized cause of stroke in children and neonates. Its true incidence appears to be underestimated. Despite being a rare event, certain studies have found a correlation between subdural hemorrhage and cerebral sinus thrombosis. The literature suggests that spontaneous cerebral sinovenous thrombosis in the pediatric population may lead to the occurrence of a subdural hemorrhage. In this report, we present a case of cerebral venous thrombosis associated with chronic subdural hematoma and review the literature to highlight the importance of these conditions. CASE REPORT: An 11-year-old boy was admitted in the neurosurgery department with headache and a neurological examination without changes. The imaging studies identified a heterogeneous subdural collection in the fronto-temporo-parietal region. The patient underwent surgical drainage of the subdural hematoma, and the procedure was performed without complications. The magnetic resonance and angiography showed an extensive thrombosis of the superior sagittal sinus, extending downward to the occipital sinus and partially to the right transverse sinus. CONCLUSIONS: Appropriate management in the diagnosis and an early treatment of dural sinus thrombosis associated with subdural hemorrhage can reduce the risk of recurrence and improve the clinical outcome.

The forensic value of the gastric content in head trauma injuries: A case report.

We present the case of a 69 years old man who was hit by a car while crossing the road. A CT scan of the skull and brain showed fracture of the left occipital bone, bilateral hemispheric subarachnoid hemorrhage, right frontal-temporal-parietal subdural hematoma with a shift of midline structures of 18 mm and complete obliteration of the third ventricle. He showed signs of anisocoria, absence of mobility of all 4 limbs and was immediately intubated and admitted to intensive care. The neurosurgeon was immediately consulted. He underwent drainage of subdural hematoma and two decompressive craniotomies, but died 15 days after the initial trauma. At autopsy, the stomach was full of a greenish poltaceous material. This gave us vital information in reconducting the actual brain death of the man to the immediacy of the investment, helping in the process of ruling out any possible profiles of professional liability.

The distance between the falx cerebri and the corpus callosum in patients with bilateral subdural hematomas: A potential measure of disease severity.

BACKGROUND: We aimed to assess the usefulness of the falx cerebri and the corpus callosum measurements as imaging markers of the evaluation of patients with bilateral subdural hematomas. METHODS: The anterior-posterior and craniocaudal distances between the falx cerebri (FC) and the corpus callosum (CC) were retrospectively measured in 88 head CT scans from 2018 to 2022 from patients with bilateral subdural hematomas and associated with quantitative data and clinical outcomes. Statistical analysis was performed using multivariate regression and receiver operating characteristic curves. RESULTS: Of the 88 patients included, 77.3% were male and the median age of 76.0 years (interquartile range 14.0). The mean craniocaudal and anterior-posterior FC-CC distances were 27.6 ± 6.2 mm and 25.1 ± 6.9 mm, respectively, and showed a positive correlation with hematoma thickness and volume. Both anterior-posterior and craniocaudal FC-CC distances exhibited moderate to good inter-rater reliability. After adjusting for confounders, the craniocaudal FC-CC distance was associated with an increased risk of altered consciousness at admission (OR=1.013; 95% CI 1.001-1.024; p = 0.031), downward displacement of the third ventricle (OR=1.019; 95% CI 1.001-1.038; p = 0.035), and a reduced time to surgery (ß = 0.057; 95% CI 0.007-0.107; p = 0.027). CONCLUSION: This study emphasizes that increased FC-CC distances in patients with bilateral subdural hematomas may aid clinical decision-making and are associated with larger hematoma volumes, evidence of descending transtentorial herniation on imaging, and a heightened risk of altered consciousness at admission.

The implications of antithrombotic agents on subdural hematoma evacuation: what does "reversal" truly entail?

OBJECTIVE: The optimal perioperative management of antithrombotic therapy (ATT) in patients requiring urgent neurosurgical intervention for subdural hematoma (SDH) is poorly understood. The delicate equilibrium of effective hemostasis while preventing thrombosis is complex and relies on numerous factors such as indication for and type of ATT, medical comorbidities, and extent of neurological injury. This study aimed to analyze the impact of ATT and reversal strategies on surgical outcomes to highlight current challenges in the management of these high-risk patients. METHODS: The authors performed a retrospective surgical cohort analysis of 100 patients undergoing urgent SDH evacuation at a level I trauma center between March 2020 and May 2021. The patients were first stratified into two cohorts based on preoperative ATT use and then further segregated by receipt of reversal agents. Statistical analysis included the chi-square test, Welch two-sample t-test, and multivariate logistic regression. The primary outcome was mortality. Secondary endpoints included radiographic SDH reexpansion, revision surgery, improvement in preoperative neurological deficits, and incidence of thromboembolism. A crossover cohort was secondarily analyzed in patients for whom ATT was interrupted for a minimum duration equal to effective drug metabolism. Finally, ATT reinitiation patterns were examined. RESULTS: Of 100 patients, 48% received ATT, 54.2% of whom were given reversal agents. ATT use was significantly associated with decreased rates of postoperative neurological improvement (p = 0.023) with trends toward increased mortality (p = 0.078), SDH reexpansion (p = 0.12), and need for revision surgery (p = 0.10). Patient crossover revealed a 4 times greater likelihood of death in patients without ATT interruption prior to surgery (p = 0.040) without an observable impact on secondary outcomes. ATT reversal contributed no improvement in outcomes other than a decreased intensive care unit length of stay when adjusted for in-hospital mortality (p = 0.014). The rate of postoperative thromboembolism following ATT reversal was 11.5%. ATT reinitiation was highly variable, occurring in 59.5% of patients, with median times of 17 and 15 days for antiplatelets and anticoagulants, respectively. CONCLUSIONS: Use of preoperative ATT portends poor clinical outcomes following nonelective SDH evacuation regardless of attempts to reverse these medications with replacement blood products. This study further reinforces the critical need for judicious use of ATT and optimization of reversal strategies in high-risk patient populations as best guided by multidisciplinary teams and evolving clinical practice guidelines.

Effect of perioperative anticoagulant prophylaxis in patients with traumatic subdural hematoma and a history of anticoagulant use: a propensity-matched National Trauma Data Bank analysis.

OBJECTIVE: The use of anticoagulation to prevent venous thromboembolism (VTE) is controversial in the setting of neurosurgical decompression for traumatic subdural hematoma (SDH). In these patients, there is concern that anticoagulation may cause secondary hemorrhage, increasing the risk of death and other complications. Patients with a history of anticoagulant use are at further risk of VTE, but the effect of VTE prophylaxis (VTEP) following neurosurgery for SDH has not been thoroughly investigated in this population. This study aims to investigate the differences in in-hospital outcomes in patients with SDH and preexisting anticoagulant use who received VTEP following neurosurgical intervention compared with those who did not. METHODS: The National Trauma Data Bank was queried from 2017 to 2019 for all patients with preexisting anticoagulant use presenting with an SDH who subsequently underwent neurosurgical intervention. Patients who received VTEP were propensity score matched with patients who did not based on demographics, insurance type, injury severity, and comorbidities. Paired Student t-tests, Pearson's chi-square tests, and Benjamini-Hochberg multiple comparisons correction were used to compare differences in in-hospital complications, length of stay (LOS), and mortality rate between the two groups. A logistic regression model was developed to identify risk factors for in-hospital mortality. RESULTS: Two thousand seven hundred ninety-four patients matching the inclusion criteria were identified, of whom 950 received VTEP. Following one-to-one matching and multiple comparisons correction, the VTEP group had a lower mortality rate (18.53% vs 34.53%, p < 0.001) but longer LOS (14.09 vs 8.57 days, p < 0.001) and higher rates of pressure ulcers (2.11% vs 0.53%, p = 0.01), unplanned intensive care unit admission (9.05% vs 3.47%, p < 0.001), and unplanned intubation (9.47% vs 6.11%, p = 0.021). The multivariable logistic regression showed that use of unfractionated heparin (UH; OR 0.36, p < 0.001) and low-molecular-weight heparin (LMWH; OR 0.3, p < 0.001) were associated with lower odds of in-hospital mortality. CONCLUSIONS: In patients with traumatic SDH and a history of anticoagulant use, perioperative VTEP was associated with increased LOS but provided a mortality benefit. LMWH and UH use were the strongest predictors of survival.

Risk factors, treatment, and outcome in dogs and cats with subdural hematoma and hemispheric collapse after ventriculoperitoneal shunting of congenital internal hydrocephalus.

BACKGROUND: Overshunting and hemispheric collapse are well-known complications after ventriculoperitoneal shunt (VPS) implantation. Risk factors that predispose to overshunting, treatment options, and prognosis after therapeutic intervention have not been described. HYPOTHESIS/OBJECTIVES: To identify preoperative risk factors for overshunting, the effect of surgical decompression, and their outcomes. ANIMALS: Seventy-five dogs and 7 cats. METHODS: Retrospective case cohort study. Age, breed, sex, body weight, number of dilated ventricles, ventricle brain ratio, intraventricular pressure, and implanted pressure valve systems were evaluated as possible risk factors. RESULTS: Overshunting had a prevalence of 18% (Cl 95% 9.9-26.66). An increase of 0.05 in VBR increased the risk of overshunting by OR 2.23 (Cl 95% 1.4-3.5; P = .001). Biventricular hydrocephalus had the highest risk for overshunting compared to a tri- (OR 2.48 with Cl 95% 0.5-11.1) or tetraventricular hydrocephalus (OR 11.6 with Cl 95% 1.7-81.1; P = .05). There was no influence regarding the use of gravitational vs differential pressure valves (P > .78). Overshunting resulted in hemispheric collapse, subdural hemorrhage, and peracute deterioration of neurological status in 15 animals. Subdural hematoma was removed in 8 dogs and 2 cats with prompt postoperative improvement of clinical signs. CONCLUSIONS AND CLINICAL IMPORTANCE: Biventricular hydrocephalus and increased VBR indicate a higher risk for overshunting. The use of differential valves with gravitational units has no influence on occurrence of overshunting related complications and outcomes. Decompressive surgery provides a favorable treatment option for hemispheric collapse and has a good outcome.

Outcomes After the Surgical Evacuation of Traumatic Acute Subdural Hematomas: The tASDH Risk Score.

BACKGROUND: Acute subdural hematoma (ASDH) is a common pathology following traumatic brain injury (TBI). There is sparse data on the prediction of clinical outcomes following traumatic ASDH (tASDH) evacuation. We investigated prognosticators of outcome following evacuation of tASDHs, with subset analysis in a cohort of octogenarians. We developed a scoring system for stratifying the risk of in-hospital mortality for patients undergoing tASDH evacuation. METHODS: A retrospective chart review was performed to identify all patients who underwent tASDH evacuation. Baseline clinical and demographic data including age, traumatic brain injury mechanism, admission Glasgow Coma Scale (GCS), and Rotterdam computed tomography Scale (RCS) were collected. In-hospital outcomes such as mortality and discharge disposition were collected. A scoring system (tASDH Score) which incorporates RCS (1-2 points), admissions GCS (0-1 points), and age (0-1 point) was created to predict the risk of in-hospital mortality following tASDH evacuation. RESULTS: Being an octogenarian (OR = 6.91 [2.20-21.71], P = 0.0009), having a GCS of 9-12 (OR = 1.58 [1.32-4.12], P = 0.027) or 3-8 (OR = 2.07 [1.41-10.38], P = 0.018), and having an RCS of 4-6 (OR = 3.49 [1.45-8.44], P = 0.0055) were independently predictive of in-hospital mortality. The in-hospital mortality rate was lower for those with a tASDH score of 1 (10%), compared to those with a score of 2 (12%), 3 (42%), and 4 (100%). CONCLUSIONS: Octogenarians with an RCS of 4-6 and an admission GCS <13 have a high risk of mortality following tASDH evacuation. Knowledge of which patients are unlikely to survive ASDH evacuation may help guide neurosurgeons in prognostication and goals of care discussions.

Acute Extra-Arachnoid Subdural Hematomas in Patients 50 Years and Older: When Subdurals Act Like Epidurals.

BACKGROUND: Some patients with subdural hematoma (SDH) with acute extra-arachnoid lesions and without concomitant subarachnoid blood or contusions may present in similarly grave neurological condition compared with the general population of patients with SDH. However, these patients often make an impressive neurological recovery. This study compared neurological outcomes in patients with extra-arachnoid SDH with all other SDH patients. METHODS: We compared a prospective series of extra-arachnoid SDH patients without subarachnoid hemorrhage or other concomitant intracranial injury with a Transforming Research and Clinical Knowledge in TBI control group with SDH only. We performed inverse probability weighting for key characteristics and ordinal regression with and without controlling for midline shift comparing neurological outcomes (Extended Glasgow Outcome Scale score) at 2 weeks. We used the Corticosteroid Randomization After Significant Head Injury prognostic model to predict mortality based on age, Glasgow Coma Scale score, pupil reactivity, and major extracranial injury. RESULTS: Mean midline shift was significantly different between extra-arachnoid SDH and control groups (7.2 mm vs. 2.7 mm, P < 0.001). After weighting for group allocation and controlling for midline shift, extra-arachnoid SDH patients had 5.68 greater odds (P < 0.001) of a better 2-week Extended Glasgow Outcome Scale score than control patients. Mortality in the extra-arachnoid SDH group was less than predicted by the Corticosteroid Randomization After Significant Head Injury prognostic model (10% vs. 21% predicted). CONCLUSIONS: Patients with extra-arachnoid SDH have significantly better 2-week neurological outcomes and lower mortality than predicted by the Corticosteroid Randomization After Significant Head Injury model. Neurosurgeons should consider surgery for this patient subset even in cases of poor neurological examination, older age, and large hematoma with high degree of midline shift.

Is prophylactic anti-convulsive treatment necessary in subdural hematomas?

BACKGROUND: Subdural hematoma (SDH) is usually an emergent clinical condition in neurosurgery. The relationship between the SDH and epilepsy is not well established. Therefore, the use of anti-convulsive treatment in patients with SDH is controversial. The aim of this study is to analyze the presence of seizures in patients who underwent surgery for SDH. METHODS: Patients who were operated on for SDH in our department between 2016 and 2021 were reviewed retrospectively. Demographic features, Glasgow Coma Scale (GCS) score at admission, type of SDH, location, etiology, type of surgical intervention, presence of seizures, and re-operation were evaluated. RESULTS: There were 175 patients with SDH. There is a statistically significant difference between the frequency of seizures and the type of SDH. More seizures were observed in acute SDH than in the others. There is also a statistically significant difference between the GCS score and the frequency of seizures. Patients with a GCS score <12 at admission had more frequent seizures than patients with a score of 12 or higher. No statistically significant difference was found between factors such as etiology, re-operation, hematoma location, and the development of seizures. CONCLUSION: Anti-convulsive treatment may be recommended in patients with acute SDH and a low GCS score at admission. Further studies with larger series should be performed to determine the most appropriate anti-convulsive agent for patients with SDH.