Subdural Hematoma Research Articles

Impact of anesthesia type on surgical outcomes and medical complications in chronic subdural hematoma surgery

BackgroundsChronic Subdural Hematoma (CSDH) is common in elderly patients. Although general anesthesia (GA) has traditionally been used for CSDH surgeries, it may lead to postoperative complications, especially in older patients. We hypothesized that local anesthesia (LA) could reduce postoperative medical complications, including pneumonia, compared to GA. MethodsWe conducted a retrospective study from 2015 to 2019, of medical records of CSDH patients from two hospitals in addition to a comprehensive literature review. Inclusion criteria were a new CSDH diagnoses and treatment with burr-hole craniostomy (BHC) and drain insertion. Patients with recent ipsilateral craniotomies were excluded. Clinical variables included demographics, comorbidities, hematoma characteristics, and post-operative outcomes. ResultsOf 383 eligible patients, 63 underwent BHC under LA (LA group), and 320 under GA (GA group). Both groups exhibited similar baseline characteristics, hematoma characteristics, and surgical outcomes, including postoperative CT findings and ICU stay duration. There was also no significant difference in postoperative bleeding events between the groups. Although patients in the GA group experienced a higher incidence of postoperative pneumonia (3.8 % vs 1.6 %), multivariate analysis revealed that the occurrence of pneumonia was associated with a history of lung disease and preoperative neurological status (OR 7.28, p = 0.018, OR 3.40, p < 0.001, respectively) rather than with the type of anesthesia used. ConclusionOur study suggests that the type of anesthesia does not influence postoperative surgical and medical outcomes, including pneumonia, which is the most common medical complication of BHC for CSDH. Rather, preoperative neurological status and underlying morbidities appear to be more closely related to postoperative medical complications. Future large, prospective studies are needed to validate our findings.

A Symptomatic Calcified Chronic Subdural Hematoma in an Elderly Patient: A Case Report

Calcified chronic subdural hematomas are rare forms of chronic subdural hematoma, accounting for 0.3-2.7%. Surgery is adequate for most chronic subdural hematomas, but its effectiveness is uncertain for calcified chronic subdural hematomas. In this case report, we illustrate a case of a 70-year-old male presenting with a motor function deficit in his left limbs over two months and neurological deterioration. A substantial calcified subdural collection was seen on computed tomography in the right parietal hemisphere. This was surgically removed with success and completeness. A chronic subdural hematoma has minimal possibility of becoming calcified. Because of the patient's condition's severity, surgery was the only remaining choice. J Shaheed Suhrawardy Med Coll 2023; 15(1): 83-86

Penetration of Non-Adhesive Gel-like Embolic Materials During Dural Vessels Embolization According to Characteristics of Tantalum Powder

Tantalum powder is included in the composition of Non-Adhesive Gel-like Embolic Materials (NAGLEMs) for X-ray opacity. The duration of X-ray opacity during embolization is primarily associated with the particle size, which differs in the most used NAGLEMs—ONYX (Medtronic) and SQUID (Balt). NAGLEMs are widely used for the embolization of branches of the middle meningeal artery (MMA) in patients with chronic subdural hematomas (CSDHs). Considering the size (5–15 microns) of the target dural vessels, we assumed that not only the viscosity of NAGLEMs, but also the size and shape of tantalum granules may be important for the penetration of these gel-like embolic agents and determine their behavior. A notable discrepancy in size was observed. The medium-sized granules in the SQUID 18 sample (0.443 ± 0.086 microns, M ± SD) were found to be approximately ten times smaller than the tantalum granules in the ONYX 18 sample (5.2 ± 0.33 microns, M ± SD).Tantalum granules in SQUID 18 have a regular spherical shape; in ONYX 18 they have an irregular angular shape. When comparing the behavior of gel-like embolic agents of the same viscosity during MMA embolization in patients with CSDHs (an average age of 62.2 ± 14.3 years) in the group where SQUID 18 (n = 8) was used, the gel-like embolic agent in dural vessels demonstrated significantly greater penetration ability compared with the group where ONYX 18 (n = 8) was used. Accordingly, not only the viscosity of NAGLEMs, but also the size and shape of tantalum granules can have a significant effect on the penetration ability of gel compositions.

Acute subdural haemorrhage in a warfarin user following leech bite: Clinical note and review

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Revisiting the Surgical Outcomes of Non-Acute Subdural Hematomas among Retired Military Personnel : A Single Tertiary Hospital Retrospective Analysis in the Philippines.

Subdural hematomas (SDH) are classified clinically and/or radiologically as acute (ASDH), subacute (SSDH) and chronic (CSDH). The management differ depending on their classification, with only the ASDH having a definite accepted surgical guideline. Non-acute SDH, specifically SSDH and CSDH have no clear surgical guidelines but are managed similarly in some literature. This study was conducted to determine if there is a difference in outcomes among surgically managed non-acute SDH in a specific elderly population of retired military personnel. This is a pre-pandemic retrospective study that utilized data obtained from January 2016 to April 2019, in a subspecialty tertiary hospital that caters to retired military personnel or veterans, in the Philippines. After chart review and application of inclusion and exclusion criteria, twenty-one patients were included, all military retirees, with age 56 years old and above. Chart review and electronic database were retrieved to extract relevant information. In this study, a term 'mixed-type subdural hematoma' (MSDH) was proposed to encompass SDH that have mixed hypo-and-hyperdensity on preoperative CT scan and were subsequently found to have bright red liquefied hematoma instead of the classic engine machinery oil fluid found in a CSDH. Based on the observed cohort, 9 out of 11 CSDH patients attained the Glasgow Outcome Scale Extended (GOS-E) score of 8 while all the respondents in the MSDH group attained the same GOS-E score underscoring the need for early intervention in patients with non-acute subdural hematoma. Moreover, the outcomes of both MSDH and CSDH are comparable with low mortality rate (~9.5%) and immediate postoperative improvement (~90%). MSDH and CSDH, although classified separately using clinical and/or radiologic means, can collectively be categorized as a non-acute SDH and can be managed safely and effectively with burr hole surgery.

Cranioplasty for Sinking Flap Syndrome in Chronic Subdural Hematoma: A Case Report

Cranioplasty for Sinking Flap Syndrome in Chronic Subdural Hematoma: A Case Report

Development of a predictive model for assessing the risk factors associated with recurrence following surgical treatment of chronic subdural hematoma

BackgroundChronic subdural hematoma (CSDH) is a common disease in neurosurgery. Although many studies have investigated the factors affecting the recurrence of CSDH, no comprehensive prediction model has been established for the risk effect of postoperative recurrence of the disease.ObjectiveThis study aims to collect and analyze the data of CSDH patients treated in our hospital to determine the influence of preoperative, postoperative and treatment factors on the recurrence of CSDH, and to establish a corresponding prediction model to provide neurosurgeons with more accurate basis for identifying high-risk patients and guiding treatment.MethodsA total of 431 patients were collected in this study, including 323 patients who underwent traditional hematoma removal and 108 patients who underwent endoscopic hematoma removal. Relevant preoperative and postoperative data and medical history of patients were collected respectively to study the relevant factors affecting postoperative hematoma recurrence of patients, and to establish a prediction model.ResultsA total of 431 patients were enrolled in this study, 71 of whom had subdural blood recurrence. Possible relevant factors were included in univariate logistic regression, and the results showed that the preoperative GCS score, postoperative residual gas, preoperative CT hematoma thickness, coagulation function, unilateral and bilateral surgery, whether statin was taken after surgery, hematoma site, hematoma density and hematoma volume were all P &amp;lt; 0.2. It is a risk factor for recurrence of chronic subdural hematoma. The obtained data were further included in a multi-factor review. Six factors, including preoperative GCS score, postoperative gas residual, abnormal coagulation function, high-density hematoma, large hematoma volume, and irregular statin use after surgery, were independent risk factors for chronic subdural hematoma recurrence (P &amp;lt; 0.05).ConclusionThis study confirmed that six factors, including preoperative GCS score, postoperative gas residual, abnormal coagulation function, high-density hematoma, large hematoma volume, and irregular statin use, were independent risk factors for recurrence of chronic subdural hematoma. At the same time, long-term use of statins can reduce the recurrence rate of hematoma to a certain extent. In addition, the predictive model in this study could help neurosurgeons accurately identify high-risk CSDH patients.

Immunoprofile of radiological Chronic Subdural Hematoma subtypes.

This study aimed to investigate the immunological profile of Chronic Subdural Hematoma (CSDH) subtypes based on their radiological appearances, with a focus on comparing the membranous CSDH to other subtypes. We prospectively analyzed 170 CSDH cases from 138 patients, categorizing them into 'Membranous' and 'Other' subtypes based on computed tomography scans. Samples were collected from the subdural fluid and systemic blood and analyzed for a panel of inflammatory markers. Demographic data, clinical characteristics, and time since trauma were also assessed. Time since trauma to diagnostic CT was significantly longer for the 'membranous' subtype (p=0.001). 'Membranous' CSDH exhibited a distinct immunoprofile, including lower hemoglobin levels (p=0.0002) and higher concentrations of MMP-9 (p=0.005) and IL-8 (p<0.0001). Additionally, 'Membranous' CSDH showed elevated levels of IP-10, MIG, and uPAR compared to 'Other' subtypes, with significant correlations between IP-10 and MCP-1 (p=0.013), MIG (p=0.002), and uPAR (p=0.006). IL-8 levels also correlated significantly with MCP-1 (p=0.02), suggesting distinct inflammatory pathways in the 'Membranous' subtype CONCLUSIONS: This study demonstrates that CSDH subtypes, particularly the 'Membranous' subtype, possess a distinct immunological profile. These findings provide novel insights into CSDH pathophysiology. The unique inflammatory landscape of 'Membranous' CSDH, marked by elevated MMP-9 and IL-8 levels, may contribute to its chronic nature.

Chronic subdural hematoma: Management, sequelae with its predictive factors, and health-related quality of life of survivors

Objectives: The objective of the study is to identify the risk factors associated with chronic subdural hematoma (CSDH) in the Pakistani population, to compare various surgical techniques commonly used in its management, and to analyze the outcomes of patients, including early, that is, at the time of discharge, and late, that is, the disability status of patients on follow-up after ≥6 weeks. Materials and Methods: This retrospective study was carried out at a tertiary care hospital in Pakistan between March 2023 and October 2023 and included 100 patients with CSDH. All patients underwent surgical procedures, and outcomes were assessed at six weeks. Results: The mean age of the patients diagnosed with CSDH in this study was 53.81 ± 11.54 years. The most commonly reported symptom was an altered level of consciousness (30%), but most patients presented with more than one symptom (50%). Mortality was associated with only 10% of cases, and 90% reported no complications or significant morbidity. The most commonly used surgical technique was two burr-hole drainage (67%). The risk of recurrence was increased with the presence of comorbidities (P = 0.001) and remarkably reduced with intraoperative subdural drain placement (P = 0.000). Conclusion: The choice of surgical technique had no influence on the length of stay in the hospital or functional status post-discharge but surgery with intraoperative subdural drain placement proved to yield definitive favorable outcomes.

A Case of Growing Chronic Subdural Hematoma with Niveau Formation Showing an Enhanced Subdural Hyperintense Band on Magnetic Resonance Diffusion-weighted Imaging Over Time.

This case report describes an 84-year-old female patient with a growing chronic subdural hematoma (CSDH) that showed an enhanced subdural hyperintense band (SHB) on magnetic resonance (MR) diffusion-weighted imaging over time, indicating that it reflects fresh bleeding from the outer membrane covering the hematoma. The presence of SHB on MR diffusion-weighted imaging of CSDH, possibly reflecting hemorrhagic diathesis of the outer membrane, might be a predictor of enlargement of CSDH.

Letter: Safety and Effectiveness of an Enhanced Recovery Protocol in Patients Undergoing Burr Hole Evacuation for Chronic Subdural Hematoma.

Letter: Safety and Effectiveness of an Enhanced Recovery Protocol in Patients Undergoing Burr Hole Evacuation for Chronic Subdural Hematoma.

The impact of renin-angiotensin-aldosterone system inhibitors on the recurrence of chronic subdural hematoma: a systematic review and meta-analysis.

This meta-analysis seeks to investigate the effects of renin-angiotensin-aldosterone system (RAAS) inhibitors on the recurrence of chronic subdural hematoma (cSDH). Following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, this study conducted a comprehensive online search across various databases, including PubMed, EMBASE, CINAHL, Web of Science, and Cochrane, without time restrictions. Two reviewers independently screened titles, abstracts, and full texts based on predetermined criteria, resolving any discrepancies through discussion or consultation with a third reviewer. The quality and risk of bias of the included studies were assessed using the Methodological Index for Non-Randomized Studies (MINORS) and Cochrane's tool for evaluating risk of bias in randomized controlled trials. Six studies aligned with the study objectives were included after a systematic search across 6 databases. The RAAS inhibitors group comprised 404 participants, while the control or placebo group included 1828 participants. Analysis for publication bias using the Egger test indicated no bias in the studies (P = 0.151). The odds ratio for cSDH recurrence with RAAS inhibitor use compared to non-use was reported as OR = 1.06; confidence interval 0.6-1.893, p-value = 0.818, showing no significant association between RAAS inhibitor use and cSDH recurrence. The results suggest no significant link between RAAS inhibitor use and cSDH recurrence. However, due to the limited number and design of studies, as well as the lack of clinical trials, further research is needed to determine the effectiveness of this treatment.

In Reply: Safety and Effectiveness of an Enhanced Recovery Protocol in Patients Undergoing Burr-Hole Evacuation for Chronic Subdural Hematoma.

In Reply: Safety and Effectiveness of an Enhanced Recovery Protocol in Patients Undergoing Burr-Hole Evacuation for Chronic Subdural Hematoma.

Factors Influencing Surgical Outcome of Patients with Traumatic Acute Subdural Hematoma

Background: Traumatic acute subdural hematoma (ASDH) is a catastrophic devastating component of brain injury in neurosurgical arena. Due to its significant mortality rate, potential for functional disability and disastrous consequence of complications, it is considered as a challenge for neurosurgeons worldwide. Consequently, precise recognition of predictive outcome factors is crucial for appropriate neurosurgical management and prognostication for patients with traumatic ASDH. Aims: The study aimed to determine the demographic, clinical, radiological and therapeutic factors associated with the surgical outcomes in patients with traumatic acute subdural hematoma (ASDH) who managed surgically in the Neurosurgery Department at a tertiary level hospital in Bangladesh. Materials and Methods: This prospective observational study included 40 radiologically diagnosed cases of traumatic ASDH age more than 18 years who were admitted and operated in the Department of Neurosurgery of Chittagong Medical College Hospital from May 2022 to April 2023. Data regarding demographic, clinical, radiographic, surgical procedure and findings were recorded. Three months mortality rate with clinical outcome was assessed by Glasgow Outcome Scale (GOS) score and analyzed. The outcome was divided into favorable outcomes (GOS score &gt;3) and unfavorable outcomes (GOS score d”3). Results: The median age of the patients was 45 years (range: 19-82 years), and there was a male predominance (82.5%) with a male to female ratio of 4.7:1. Road traffic accident (RTA) was the most common cause of trauma (65%), followed by fall from height (15%), and physical assault (12.5%). Craniotomy was done in 16 (40%) patients and other 24 (60%) patients had decompressive craniectomy. Overall, 21 (52.5%) patients had good outcome and other 19 (47.5%) had poor outcome, and three months mortality rate was 42.5%. Regression analysis revealed that, increasing age [Odds ratio (OR): 1.12, 95% Confidence interval CI: 1.02-1.22. p=0.014], preoperative GCS of d”8 (OR: 13.98, 95% CI:1.22-160.00, p=0.034), and presence of Anisocoria with non-reacting pupil (OR; 17.99, 95% CI: 1.32-244.08, p=0.030) were independently associated with poor outcome. Conclusions: This study identified higher age, preoperative low GCS score and pupillary abnormality as the independent predictors for 3-months poor outcome in patients who underwent surgical treatment for traumatic ASDH Bang. J Neurosurgery 2024; 13(2): 140-148

Prognostic Factors of Outcome in Patients Undergoing Surgical Intervention following Traumatic Intracerebral Haemorrhage

Background: Intracerebral hemorrhage is a common complication after traumatic brain injury. While it is accepted practice to remove extra-axial (extradural and subdural) haematoma following traumatic brain injury, but surgical practice in the treatment of traumatic intracerebral hemorrhage (TICH) differs widely, and prognostic factors associated with outcome following surgery have not yet been well established. Aims: The study aimed to determine the prognostic factors of outcome in patients undergoing surgical intervention following traumatic intracerebral hemorrhage in a tertiary care hospital in southeastern part of Bangladesh. Materials and Methods: This prospective interventional study included 45 patients requiring craniotomies for decompression and evacuation of an intracranial hemorrhage following traumatic intracerebral hemorrhage in the Neurosurgery Department of Chittagong Medical College Hospital between December 2021 to June 2023. Demographic features, perioperative clinical and radiological characteristics of these patients were examined in relation to favorable/good outcome, defined as Glasgow Outcome Scale (GOS) score &gt;3 at 3months follow-up, and unfavorable/poor outcome, defined as 3months mortality or GOS score d”3 at 3months after surgery. Results: The median age was 45 (range 8-75) years, 82.2% were male, and road traffic accident was the commonest cause (73.3%). Initial loss of consciousness was found in 75.7% of patients and the median GCS on admission was 9 (Interquartile range 8-10). Craniotomy and evacuation was done in 23(51.1%) of the cases, followed by craniectomy and evacuation in 22 (48.9%)patients. In-hospital and 3 months mortality rate was 28.9%. At three months post surgery, all of the survived patients(32) had good outcomes; 29 (92.3%) had GOS scores of 5, while the remaining 3 had GOS scores of 4. In bivariate analysis, age, history of comorbidity and loss of consciousness, GCS on admission, hematoma volume, and injury to surgery interval was found to have significant association with poor outcome (p&lt;0.05). Age (OR: 1.211, 95% CI: 1.012-1.241, p=0.009) and GCS score on admission (OR: 0.301, 95% CI: 0.086-0.827, p=0.004) were independent predictors of 3-months poor outcome or mortality in multivariate logistic regression analysis. Conclusions: This study presented that older age(60 years) and lower GCS(7-10) on admission were the independent predictors of poor outcome after 3 months of surgery. Multicenter studies are needed to provide accurate data on traumatic intracerebral hemorrhage in Bangladesh. Bang. J Neurosurgery 2024; 13(2): 104-111

Night-time versus daytime surgical outcomes in chronic subdural hematomas: a post hoc analysis of the FINISH randomized trial

ObjectiveThe optimal timing of surgical intervention for chronic subdural hematomas (CSDH), specifically night-time versus daytime, remains a subject of debate, with concerns about the potential impact of circadian timing on surgical outcomes. This study evaluated the association between the timing of burr-hole drainage for CSDH and postoperative outcomes, comparing night-time and daytime surgeries.MethodsIn a post-hoc analysis of the FINISH trial, we included adult patients with symptomatic unilateral or bilateral CSDH who underwent burr-hole drainage between January 2020 and August 2022. Night-time surgery was defined as procedures starting between 23:00 and 06:00, with daytime surgeries occurring between 06:01 and 22:59. The primary outcome was functional outcome at six months post-surgery, assessed using the modified Rankin Scale (mRS), with favorable outcomes defined as an mRS of 0–3. Secondary outcomes included mortality, reoperation rates, and adverse events within six months.ResultsOur analysis of 589 patients (83% daytime surgery, 17% night-time surgery) revealed no significant differences in baseline characteristics. The unadjusted analysis suggested a higher rate of favorable functional outcomes in the night-time surgery group than in the daytime group (94% vs. 86%, p = 0.037). Mortality, adverse events, and reoperation rates were similar in the groups. Adjusted logistic regression analyses, accounting for potential confounders, indicated that night-time surgery was not associated with a higher risk of unfavorable functional outcomes compared to daytime surgery.ConclusionsOur findings suggest that night-time surgery versus daytime surgery is not associated with worse postoperative outcomes. These findings challenges the traditional preference for daytime CSDH surgery and emphasizes the potential for flexibility in surgical scheduling to optimize patient care in CSDH management.

Diagnosis of Menopause in a Captive Sumatran Orangutan (Pongo abelii).

Humans were long thought to be the only mammal to experience menopause, the permanent cessation of reproduction followed by a long post-reproductive lifespan. More recently, evidence has been found for the existence of menopause in other long-lived mammals, including chimpanzees and gorillas. However, orangutans, which have the longest interbirth interval of any primate, have rarely been studied in this period of their lives. In this paper, we describe clinical, ultrasound, endocrine, and histological evidence consistent with a natural menopause in a captive, previously fertile, Sumatran orangutan (Pongo abelii), aged approximately 50. Consecutive serum samples showed low levels of estradiol and high levels of follicle-stimulating hormone. Transvaginal ultrasound revealed an atrophic uterus with an antero-posterior diameter of 2.36 cm, an endometrial thickness of 2 mm, and inactive ovaries. Following this female's death from a subdural hematoma, histological examination of the ovaries showed a dense stroma with corpora albicantia, in comparison to the numerous primordial follicles seen in the ovaries of a stillborn infant female orangutan. These multiple lines of evidence suggest that Sumatran orangutans can now be added to the list of mammals which undergo a true menopause, which may ensure that females' final offspring can be reared to independence.

Prognostic factors of chronic subdural hematomas in two reference university teaching hospitals in the city of Yaounde

ObjectivesDespite the good prognosis of surgical treatment of chronic subdural hematomas, there are some early deaths, recurrences and post-operative complications. The objective of this study is to analyze the prognostic factors of chronic subdural hematomas in two reference university teaching hospitals in the city of Yaounde. MethodThree hundred and ten cases of chronic subdural hematomas were diagnosed on 3788 patients hospitalized in the neurosurgery departments of two reference university teaching hospitals in the city of Yaounde from January 1st, 2015 to December 31st, 2021 (7 years). The authors collected data from patients in whom surgical treatment was performed and assessed their prognosis with regard to the rate of early and late recurrence, mortality rate and postoperative complications and associated factors. ResultsData from 284 patients were analyzed. The mortality rate was 6.7 % and the recurrence rate was 3.2 % in early postoperative period and 4.5 % after a follow-up of 3–24 months. Prognostic factors for death were age greater than or equal to 80 years (p value = 0.034) and presence of cortico-subcortical atrophy (p value = 0.003). The main recurrence factors were age greater than or equal to 70 years and compartmentalization of the hematoma. ConclusionChronic subdural hematomas are generally of good prognosis when the Glasgow coma score on admission is good and adequate management is carried out as soon as possible. Advanced age, lesions such as cortico-subcortical atrophy and compartmentalization of the hematoma are all factors that predispose to recurrence or early mortality. Those groups of patients should therefore benefit from a closer follow-up in post-operative period.

Subdural Hematoma Following Spinal Anesthesia.

Subdural Hematoma Following Spinal Anesthesia.

Spatial attention-based CSR-Unet framework for subdural and epidural hemorrhage segmentation and classification using CT images

BackgroundAutomatic diagnosis and brain hemorrhage segmentation in Computed Tomography (CT) may be helpful in assisting the neurosurgeon in developing treatment plans that improve the patient’s chances of survival. Because medical segmentation of images is important and performing operations manually is challenging, many automated algorithms have been developed for this purpose, primarily focusing on certain image modalities. Whenever a blood vessel bursts, a dangerous medical condition known as intracranial hemorrhage (ICH) occurs. For best results, quick action is required. That being said, identifying subdural (SDH) and epidural haemorrhages (EDH) is a difficult task in this field and calls for a new, more precise detection method.MethodsThis work uses a head CT scan to detect cerebral bleeding and distinguish between two types of dural hemorrhages using deep learning techniques. This paper proposes a rich segmentation approach to segment both SDH and EDH by enhancing segmentation efficiency with a better feature extraction procedure. This method incorporates Spatial attention- based CSR (convolution-SE-residual) Unet, for rich segmentation and precise feature extraction.ResultsAccording to the study’s findings, the CSR based Spatial network performs better than the other models, exhibiting impressive metrics for all assessed parameters with a mean dice coefficient of 0.970 and mean IoU of 0.718, while EDH and SDH dice scores are 0.983 and 0.969 respectively.ConclusionsThe CSR Spatial network experiment results show that it can perform well regarding dice coefficient. Furthermore, Spatial Unet based on CSR may effectively model the complicated in segmentations and rich feature extraction and improve the representation learning compared to alternative deep learning techniques, of illness and medical treatment, to enhance the meticulousness in predicting the fatality.