Subdural effusion associated with COVID-19 encephalopathy: A case report

BACKGROUND The precise mechanism by which severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)impacts the central nervous system remains unclear,with manifestations spanning from mild symptoms(e.g.,olfactory and gustatory deficits,hallucinations,and headache)to severe complications(e.g.,stroke,seizures,encephalitis,and neurally demyelinating lesions).The occurrence of single-pass subdural effusion,as described below,is extremely rare.CASE SUMMARY A 56-year-old male patient presented with left-sided limb weakness and slurred speech as predominant clinical symptoms.Through comprehensive imaging and diagnostic assessments,he was diagnosed with cerebral infarction complicated by hemorrhagic transformation affecting the right frontal,temporal,and parietal regions.In addition,an intracranial infection with SARS-CoV-2 was identified during the rehabilitation process;consequently,an idiopathic subdural effusion developed.Remarkably,the subdural effusion underwent absorption within 6 d,with no recurrence observed during the 3-month follow-up.CONCLUSION Subdural effusion is a potentially rare intracranial complication associated with SARS-CoV-2 infection.

A Rare Etiology of a Life-Threatening Subdural Hematoma: Case Report and Literature Review

Background: Life-threatening subdural hematoma is commonly related to trauma and rarely revealed by neoplasm. Observation: We report a case of a 53-year-old suffering from mild headache and without a history of trauma, was admitted unconscious due to a subdural hematoma on radiological investigations. Beside the left subdural hematoma, there was also alytic lesion of the sphenoid wing and the temporal bone on the same side. An emergent removal of the subdural hematoma and an excision of the bone lesion were performed. Pathological examination diagnosed a cavernous hemangioma of the skull. The postoperative period was uneventful with a dramatic recovery of the patient. Conclusion: A quick worsening of a chronic headache, acute impairment of an uncommon headache deserve prompt investigation and emergent surgical management in case of intracranial hematoma. Any bone and dural abnormalities at the vicinity of a subdural hematoma require total excision with clean border and pathological examination.

Chronic Subdural Hematoma Associated with an Arachnoid Cyst in Elderly, an Intraoperative Finding after Re-Bleeding: Case Report

Intracranial arachnoid cysts (AC) are believed to be congenital and chronic subdural hematomas tend to occur in elderly patients with a history of mild head injury. The association between these two entities sporadically occur in relatively young patients but rare in elderly patients. We report a 65-year-old man who presented with headache and dizziness of 2 months’ duration with a history of head injury. Brain computed tomography (CT) a CSDH in right side and a hygroma in left side. After first operation with burr holes in both sides, the patient underwent an early recurrence of acute subdural hematoma in the right side. The evacuation of this hematoma by a craniotomy allowed seeing an AC that we resected partially with complete recovery of the patient. The association CSDH/AC is rare and possible in elderly patients and there is no consensus on treatment.

Left Hemispherical Subdural Hematoma on the Same Side as the Motor Deficit (Kernohan)

Chronic subdural hematoma represents 25% of traumatic subdural collections;common in elderly subjects with a clear male predominance. It occurs over the age of 50 in more than 90% of cases and 50% of patients have no history of head trauma even if the latter remains the main risk factor with others such as coagulopathy, anticoagulant treatment, chronic alcoholic poisoning. Its discovery is rarely fortuitous and has an important clinical polymorphism including an intracranial hypertension syndrome (complete or incomplete). We report a clinical case of a left hemispheric subacute subdural hematoma with post-traumatic falcorial involvement in a 70-year-old patient admitted with a picture of impaired consciousness and weakness of the left hemibody. The objective of this work is to draw the attention of neurosurgeons and neurologists to the paradoxical existence of the neurological deficit on the same side as the causal brain lesion.

Development of subdural empyema from subdural effusion after suppurative encephalitis:A case report

BACKGROUND Chronic subdural effusion is very common in the cranial imaging of middle-aged and older people.Herein,we report a patient misdiagnosed with subdural effusion,who was eventually diagnosed with chronic subdural empyema(SDE)caused by Streptococcus pneumoniae.CASE SUMMARY A 63-year-old man was brought to our emergency room with a headache,vomiting,and disturbed consciousness.Computed tomography(CT)revealed a bilateral subdural effusion at the top left side of the frontal lobe.Cerebrospinal fluid examination after lumbar puncture indicated suppurative meningitis,which improved after anti-infective therapy.However,the patient then presented with acute cognitive dysfunction and right limb paralysis.Repeat CT showed an increase in left frontoparietal subdural effusion,disappearance of the left lateral ventricle,and a shift of the midline to the right.Urgent burr hole drainage showed SDE that was culture-positive for Streptococcus pneumoniae.His condition improved after adequate drainage and antibiotic treatment.CONCLUSION Patients with unexplained subdural effusion,especially asymmetric subdural effusion with intracranial infection,should be assessed for chronic SDE.Early surgical treatment may be beneficial.

Positioning and design by computed tomography imaging in neuroendoscopic surgery of patients with chronic subdural hematoma

BACKGROUND Neuroendoscopy is a very useful technique to Chronic Subdural Hematoma(CSH).But how to achieve the goal of treatment more minimally invasive?AIM To develop a simple,fast and accurate preoperative planning method in our way for endoscopic surgery of patients with CSH.METHODS From June 2018 to May 2020,forty-two patients with CSH,admitted to our hospital,were performed endoscopic minimally invasive surgery;computed tomography(CT)imaging was employed to locate the intracerebral hematoma and select the appropriate endoscopic approach before the endoscopic surgery.The clinical data and treatment efficacy were analyzed.RESULTS According to the learning of CT scanning images,the surgeon can accurately design the best minimally invasive neuroendoscopic surgical approach and realize the precise positioning and design of the drilling site of the skull and the size of the bone window,so as to provide the most effective operation space with the smallest bone window.In this group,the average operation time was only about 1 h,and the clearance rate of hematoma was about 95%.CONCLUSION Patients with CSH can achieve good therapeutic effect by using our way to positioning and design to assist the operation of CSH according to CT scan and image,and our way is very useful and necessary.

Rare combination of traumatic subarachnoid-pleural fistula and intracranial subdural hygromas:A case report

BACKGROUND Subarachnoid-pleural fistula(SPF)is a complex and rare condition characterized by a pathological shunt between the subarachnoid and pleural spaces.It can lead to the accumulation of cerebrospinal fluid(CSF)in the pleural space,pneumocephalus,and the development of central nervous system infection.Trauma or thoracic spinal surgery are common causes of SPF,with symptoms including postural headache,consciousness status changes,and dyspnea.The combination of SPF and subdural hygroma is a severe and rare condition,with little existing literature on its clinical correlation.CASE SUMMARY We report a case of an 83-year-old male patient with traumatic SPF and bilateral frontal subdural hygroma following a fall from height.The patient initially presented with severe lower back and buttock pain.During admission,the patient developed worsening lower limb weakness and pleural effusion.Further investigation revealed the presence of subdural hygromas with mass effect,requiring emergency bilateral subdural drainage.A multidisciplinary approach was undertaken to manage this complex condition,including intervention for hypovolemic CSF status and subdural hygroma management.The pleural effusion eventually resolved and the patient attained a higher level of con-sciousness after bilateral hygroma drainage surgery.We also reviewed the present literature relating to this rare combination of medical conditions.CONCLUSION Traumatic SPF with subsequent subdural hygroma is a rare but serious combination.Although the optimal treatment strategy for this complex condition remains uncertain,our literature review suggested that a multidisciplinary approach,including intervention for hypovolemic CSF and management of the subdural hygroma,is the most beneficial.

Acute spinal subdural haematoma complicating a posterior spinal instrumented fusion for congenital scoliosis:A case report

BACKGROUND Acute spinal subdural haematoma(ASSH)is a rare and potentially devastating condition with a variable prognosis.Previously described subdural haematomas were thought to have occurred spontaneously or be related to major or minor iatrogenic or traumatic injuries caused by surgery,spinal puncture or epidural anaesthesia.Other contributing pathologies have been described,such as intradural tumours or spinal arteriovenous malformations.ASSH has also been associated with anticoagulation therapy,haemostatic abnormalities and risk factors such as pregnancy.To the best of our knowledge,this case study described the first reported occurrence of an ASSH during spinal surgery in a paediatric patient.The patient was not known to have any coagulopathies,and no obvious vascular lesions were documented.The surgical procedure did not directly involve the dura mater,and no evident intraoperative dural tears were found.CASE SUMMARY We reported and discussed a case of ASSH complicating a posterior spinal instrumented fusion during surgery for paediatric congenital scoliosis.This condition has not been previously described.We made recommendations for facing such an occurrence,explored its aetiology in the context of malformation and discussed the benefits of neuromonitoring during scoliosis correction and the management protocol.We conducted a PubMed literature review for cases of paediatric ASSH and other closely related disorders.We reviewed recommendations regarding neuromonitoring and treatment management in such cases.CONCLUSION ASSH is a rare complication of posterior spinal instrumented fusion.Published cases are more often associated with anticoagulation therapy or coagulopathy.Neuromonitoring is strongly recommended to detect and assess neurological status,thus enabling rapid diagnosis and treatment and facilitating early spinal decompression and a return to a normal neurological status.

Risk Factors of Reoperation and Outcome of Patients Operated for Chronic Subdural Hematoma in a Teaching Hospital in Rabat

Background: chronic subdural hematoma is a common pathology, especially in the elderly. Although it has a good prognosis, it poses the problem of recurrence after surgical evacuation. Objective: To analyze the risk factors of reoperation in patients surgically treated for chronic subdural hematoma (cSDH) and evaluate the outcome of patients who benefited from a reoperation. Materials and Methods: A retrospective review was conducted in a single University Hospital Center in Rabat (Morocco) on 49 patients operated on from January 2020 to June 2021 for cSDH. Possible risk factors described in the literature were analyzed and the outcome of post-operative course was evaluated. Statistical significance was defined by p-value Results: 49 patients underwent surgical evacuation of cSDH. The sex ratio of male/female was 3.08. The mean age was 70.6 years. Concerning the medical history, 8.2% were diabetics, 10.2% had heart disease, 18.4% had hypertension, 16.3% associated of comorbidities, 2% had pulmonary embolism, and 2% had neoplasm. 18.4% were on anticoagulation therapy, no patients were on new oral anticoagulants. The clinical findings upon admission were motor deficit at 57.1%, signs of intracranial hypertension at 20.4%, altered consciousness at 16.9% and impaired behavior at 6.1%. 28.6% of patients had a past history of head trauma. The pre-operative CT scan showed unilateral cSDH at 81.6%, midline shifts at 77.6%, and false membranes at 34.7%. Blood appeared chronic at 40.8%, subacute at 24.5%, and mixed densities at 34.7%. The post-operative course was uneventful in 73.5%. According to Ibanez grading 8 patients had mild complications (grade I) and 5 moderate complications (grade II) after the first surgery. We recorded 10.2% of patients who needed a second surgery because of the deterioration of neurologic status or motor deficit associated with an abnormal CT scan. According to the GOS, 85.7% of patients had a good recovery while 10.2% died. None of the factors assessed was found to be a risk factor for reoperation. Conclusion: No risk factors of reoperation after an initial burr hole evacuation for cSDH were found. However medical history and male sex was common condition among reoperated patients with their CT scan showing a chronic aspect of blood, midline shift and false membranes. Most patients who underwent revision surgery died on the postoperative course.

应用Subdural专用引流管治疗慢性硬膜下血肿

目的比较钻孔闭式引流和Subdural专用引流管穿刺引流在慢性硬膜下血肿(CSDH)中的疗效。方法回顾分析我院收治的88例CSDH患者,46例行钻孔闭式引流(A组),42例行Subdural专用引流管穿刺引流术(B组),比较两组治疗效果。结果A组40例一次钻孔引流成功,6例因继发颅内血肿而改行开颅手术,再手术率13.04%,癫发作3例;B组41例一次性引流成功,1例因继发血肿再次手术,再手术率2.38%,无癫发作。结论Subdural引流术较钻孔冲洗闭式引流术更微创、更安全有效,并发症少,宜作为治疗CSDH的首选方法。

改进YOLOv5su模型检测桃树缩叶病

为实现自然环境下桃树缩叶病的检测,该研究提出了一种基于YOLOv5su的桃树缩叶病识别改进模型DLLYOLOv5su。首先,针对桃树缩叶病目标特征变化较大的问题,在骨干网络最后一层C3模块中加入可变形自注意力模块(deformable attention,DA),使模型更加关注目标区域,降低背景对模型的影响,提高模型在复杂背景下的拟合能力。其次在SPPF(fast spatial pyramid pooling)模块中引入LSKA(large separable kernel attention)结构,大核卷积增大了模型的感受野,使模型能够关注更多信息。最后,提出了LAWD(lightweight adaptive weighted downsampling)模块,使用轻量化的下采样结构替换卷积模块,减少计算开销。在桃树缩叶病数据集上进行试验,结果显示,DLL-YOLOv5su模型权重大小为17.6 MB,检测速度为83帧/s。识别准确率P、召回率R和平均精度均值mAP_(50)分别达到了80.7%、73.1%和80.4%,相较于原始YOLOv5su分别提高了4.2、2.4和4.3个百分点。与YOLOv3-tiny、Faster R-CNN、YOLOv7和YOLOv8相比mAP_(50)分别高出了28.5、11.8、2.1和4.1个百分点。改进模型识别精度高,误检、漏检率低,检测速度满足实时检测的要求,可以为桃树缩叶病的实时监测和预警提供参考。

小麦SUS基因家族鉴定与生物信息学分析

【目的】对小麦蔗糖合成酶(sucrose synthase,SUS)基因家族进行鉴定和生物信息学分析,为探究小麦SUS(TaSUS)基因家族的作用机制提供理论参考。【方法】采用生物信息学方法在小麦全基因组上鉴定TaSUS基因家族成员,并对其系统进化关系、染色体位置、基因结构、保守结构域、启动子顺式作用元件和基因表达模式进行分析。【结果】在小麦基因组中共鉴定到分布于14条染色体上的24个TaSUS基因,可分为3个亚组。TaSUS基因含有多个外显子,但部分基因缺失非翻译区结构。TaSUS基因家族成员启动子区域包含45种顺式作用元件,涉及植物生长发育和逆境胁迫响应。大多数TaSUS基因在小麦穗中显著表达,在叶、茎和根中的相对表达量较低。【结论】研究结果有助于了解小麦SUS基因家族的进化,为后期小麦SUS基因家族的生物功能研究奠定理论基础。

Vertebroplasty and delayed subdural cauda equina hematoma: Review of literature and case report

Vertebroplasy is considered an alternative and effective treatment of painful oncologic spine disease. Major complications are very rare, but with high morbidity and occur in less than 1% of patients who undergo vertebroplasty. Spinal subdural hematoma(SDH) is an extremely rare complication, usual developing within 12 h to 24 h after the procedure. We report the case of a tardive SDH in an oncologic patient who underwent VP for Myxoid Liposarcoma metastasis. Trying to explain the pathogenesis, we support the hypothesis that both venous congestion of the vertebral venous plexus of the vertebral body and venous congestion due to a traumatic injury can provoke SDH. To our best knowledge, only 4 cases of spinal subdural hematoma following a transpedicular vertebroplasty have been previously described in International literature and only one of them occurred two weeks after that surgical procedures. Percutaneous verteboplasty is a wellknown treatment of pain oncologic spine disease, used to provide pain relief and improvement of quality life and is considered a simple surgical procedure, involving a low risk of complications, but related to high morbidity, such as SDH. Therefore it has to be performed by experienced and skilled surgeons, that should also recognize possible risk factors, making SDH more risky.

Efficacy of Single Burr Hole in Management of Chronic Subdural Hematoma

Background: Surgery of chronic subdural hematoma (CSDH) is a common practice of neurosurgeons. CSDH is considered a pathology of the elderly and usually many co-morbidities are present. CSDH carries high risk of mortality if not treated or not treated well. So, the minimal, safe and adequate surgical intervention is the bases to choose specific surgical maneuver. Aim of the Study: The efficacy of a single burr in evacuation and treatment of chronic subdural hematoma. Methods: This study was held in Assiut university hospitals, neurosurgical department. It is a prospective randomized controlled study. 113 patients were enrolled in this study in the period between March 2018 and June 2019. We included all cases of chronic subdural hematoma (CSDH) and subacute subdural hematoma that were evacuated with single burr hole. Hematomas either, unilateral or bilateral were included. Septated hematomas were excluded. Patients’ clinical characteristics as age, sex, clinical presentation, co-morbidities and patients outcome were recorded. Postoperative status as regards improvement of the neurological status, complications and recurrence of hematoma were recorded. Results: We had 113 patients operated via properly situated single burr hole in our study. 113 patients were included in this study, 79 males (69.9%) and 34 females (30.1%). Age of the patients ranges between 27 years old and 90 years old. Postoperative follow up was evaluated according to Glasgow outcome score (GOS). We had 98 patients with good recovery, 4 patients with moderate disability, 6 patients with severe disability and 5 patients died. Complications were in form of 3 patients with residual hematoma, 2 patients with tension pneumocephalus, 7 patients developed postoperative seizure, 5 cases developed cortical/parenchymal hematoma and 9 cases developed hematoma recurrence. Conclusion: Single, properly situated burr hole with previously described characters is an effective treatment option in cases of CSDH. It helps adequate, effective and safe removal of the pathology with limited maneuver.

温度对SUS410/BNi-2/Hastelloy X钎焊接头界面组织及力学性能的影响

目的针对汽封部件的高质量制造需求,系统研究了温度对SUS410/BNi-2/Hastelloy X钎焊接头微观组织及力学性能的影响。方法将以SUS410/BNi-2/Hastelloy X搭接结构装配的试样放入真空炉中在不同温度(1060~1140℃)下进行钎焊连接,利用SEM和EDS等手段分析钎料与母材之间的相互作用,测试接头的力学性能并分析接头断裂行为,研究温度对接头界面组织演化和力学性能的影响。结果钎缝主要由Ni(s,s)与Cr-B相组成,B元素扩散进入两侧母材,在晶界处聚集形成硼化物相。随着钎焊温度的升高,钎缝中富Cr的硼化物和浅灰色Ni(s,s)相消失,形成均匀的Ni(s,s)组织,两侧母材中B元素扩散深度增加。随着钎焊温度不断升高,钎焊接头的抗剪强度逐渐上升,上升到某一强度后,温度继续升高,但强度反而下降,断裂位置由钎缝中心先转移至Hastelloy X基体,随着温度继续升高,断裂位置又转移至SUS410扩散区。断裂形式由脆性断裂转变为韧性断裂。结论采用BNi-2黏带钎料实现了SUS410与Hastelloy X合金的可靠连接,接头典型界面组织为SUS410/扩散区((Fe,Cr)+(Fe,Cr)-B)/钎缝区(Ni(s,s)+Cr-B+β_(1)-phases)/扩散区(γ-phase+(Cr,Ni)-B+(Cr,Ni,Mo)-B)/Hastelloy X;钎焊接头的最大抗剪强度为235.6 MPa(1100℃)。

Recovery of corticospinal tract injury following subdural hematoma removal A diffusion tensor imaging study

Subdural hematoma can cause compression or damage to the neural tracts in the brain;however,very little is known about this injury.We report on a patient with subdural hematoma who was evaluated by diffusion tensor imaging prior to and after trephination and drainage of subdural hematoma.A 58-year-old male patient and ten age-matched normal control subjects were evaluated.The patient showed mild hemiparesis for 3 weeks prior to surgery.His hemiparesis recovered to a nearly normal state at 5 weeks post-surgery when the follow up diffusion tensor image was acquired.Two diffusion tensor image parameters,fractional anisotropy and apparent diffusion coefficient,were measured along the corticospinal tract.Pre-operative diffusion tensor image showed that the corticospinal tract of the affected hemisphere seemed to be injured or compressed.However,the follow up diffusion tensor image showed recovery of this corticospinal tract to a normal state.It would appear that diffusion tensor images are a useful tool for evaluation of the effects of subdural hematomas on neural tracts.

Pulsed current-assisted twelve-roll precision rolling deformation of SUS304 ultra-thin strips with exceptional mechanical properties

Innovative pulsed current-assisted multi-pass rolling tests were conducted on a 12-roll mill during the rolling deformation processing of SUS304 ultra-thin strips.The results show that in the first rolling pass,the rolling reduction rate of a conventionally rolled sample(at room temperature)is 33.8%,which can be increased to 41.5%by pulsed current-assisted rolling,enabling the formation of an ultra-thin strip with a size of 67.3μm in only one rolling pass.After three passes of pulsed current-assisted rolling,the thickness of the ultra-thin strip can be further reduced to 51.7μm.To clearly compare the effects of a pulsed current on the microstructure and mechanical response of the ultra-thin strip,ultra-thin strips with nearly the same thickness reduction were analyzed.It was found that pulsed current can reduce the degree of work-hardening of the rolled samples by promoting dislocation detachment,reducing the density of stacking faults,inhibiting martensitic phase transformation,and shortening the total length of grain boundaries.As a result,the ductility of ultra-thin strips can be effectively restored to approximately 16.3%while maintaining a high tensile strength of 1118 MPa.Therefore,pulsed current-assisted rolling deformation shows great potential for the formation of ultra-thin strips with a combination of high strength and ductility.

Efficacy evaluation of neuroendoscopy vs burr hole drainage in the treatment of chronic subdural hematoma:An observational study

BACKGROUND Chronic subdural hematoma(CSDH)is a common disease in neurosurgery.The traditional treatment methods include burr hole drainage,bone flap craniectomy and other surgical methods,and there are certain complications such as recurrence,pneumocephalus,infection and so on.With the promotion of neuroendoscopic technology,its treatment effect and advantages need to be further evaluated.AIM To study the clinical effect of endoscopic small-bone approach in CSDH.METHODS A total of 122 patients with CSDH admitted to our hospital from August 2018 to August 2021 were randomly divided into two groups using the digital table method:the neuroendoscopy group(n=61 cases)and the burr hole drainage group(n=61 cases).The clinical treatment effect of the two groups of patients with CSDH was compared.RESULTS At the early postoperative stage(1 d and 3 d),the proportion of 1/2 re-expansion of brain tissue in the hematoma cavity and the proportion of complete reexpansion was higher in the neuroendoscopy group than in the burr hole drainage group,and the difference between the two groups was statistically significant(P<0.05).The recurrence rate of hematoma in the neuroendoscopy group was lower than that in the burr hole drainage group,and the difference between the two groups was statistically significant(P<0.05).No intracranial hematoma,low cranial pressure,tension pneumocephalus or other complications occurred in the neuroendoscopy group.CONCLUSION The neuroendoscopic approach for the treatment of CSDH can clear the hematoma under direct vision and separate the mucosal lace-up.The surgical effect is apparent with few complications and definite curative effect,which is worthy of clinical promotion and application.

Traumatic Subdural Effusion Evolving into Chronic Subdural Hematoma

Background: Chronic subdural hematoma (CSDH) is a common complication in head injuries. The objective of this study is to establish the evolution of traumatic subdural effusion (TSDE) into CSDH using clinical signs and symptoms as well as radiology. Our aim is to effectively manage such cases without postoperative recurrence (PR). Methodology: The study was a retrospective cohort carried out in the No. 1 People’s Hospital of Jingzhou from August 2007 to November 2013. The hospital is affiliated to the Yangtze University. All the patients included in this study were involved in road traffic accidents and sustained various degree of head injury. Serial CT scans were done to establish the development TSDE and the evolution of the TSDE into CSDH and treatment options. Results: In all 159 patients developed TSDE and out of these 34 which constitute 21.38% had their TSDE evolving into CSDH. Most of the patients were elderly. Twelve patients were treated conservatively while the remaining patients were treated surgically by drilling and drainage of hematoma. All the patients survived with marked improvement in their sign and symptoms with no recurrence. Conclusion: TSDE is one of the etiological factors for the development of CSDH in the elderly although in most cases the etiology of CSDH is usual multifactory. It must be stated clearly that, the evolution of TSDE into CSDH is initially a hidden process and presents with nonspecific signs and symptoms which can easily be missed. CT scan is usually the initial radiology of choice in making diagnosis of TSDE but MRI could be used to make early diagnosis of the transgression of TSDE into CSDH, and hence early surgical intervention before the formation of a neomembrane could reduce PR rate.

Chronic Subdural Hematoma: Pitfalls to Avoid for Better Outcome

Introduction: Chronic subdural hematoma is one of the commonest intracranial haemorrhages that affect elderly. Headache and focal neurological deficits are among the commonest presentations. It carries excellent prognosis especially when evacuated probably on right timing. Recurrence rate ranging from 8% - 37% in literatures, we will highlight tricks during peri-operative period to have better outcome and decrease recurrence. Patients and methods: We operated 45 cases of chronic subdural hematoma in Cairo university emergencyhospital, during the period from November 2016 to December 2017;CT brain was done for all cases;clinical data were reported;burr hole evacuation was the standard technique. Suction drain with mild suction pressure was applied and hospital stay was 3 - 4 days after surgery. Patients were followed up to three months. Results: Forty-five patients were operated with 27 cases (60%) having their ages between 5th and 7th decades. Among Twenty-nine males and 16 females, eleven patients (25%) were confused;headache was observed in 12 patients, weakness in 31 cases (69%), dysphasia in two cases and two patients were on renal dialysis. Hypertension was associated as a comorbidity in 18 patients, diabetes mellitus in 11 patients, and smoking in 11 patients. Forty-two patients were discharged home within 3 - 4 days;two cases developed small-sized intra-cerebral hematoma, one case of wound infection, and excellent outcome for all cases on three months follow up visit. Conclusions: Chronic subdural hematoma is one of the commonest intra-cranial haemorrhages in elderly with excellent outcome if managed meticulously in right timing. Good control of co-morbidities, insuring slow clearing of hematoma fluid and staged closure technique are factors linked with better outcome. But larger studies are needed.