Early antiplatelet therapy used for acute ischemic stroke and intracranial hemorrhage

In this editorial we comment on the article published by Zhang et al in the recent issue of World Journal of Clinical Cases.We evaluate their claims on the benefit of use of Aspirin in the early management of patients with ischemic stroke.We also comment on their contention of using aspirin in the early management of patients with intracranial hemorrhage,a practice not seen in modern medicine.Large clinical trials such as the International Stroke Trial and the Chinese Acute Stroke Trial have shown the benefit of Aspirin use within 48 h of patients with Acute Ischemic Stroke.The findings were corroborated in the open-label trial performed by Zhang et al in a smaller sample group of 25 patients where they showed improvement in functional scores at 90 days without an increase in adverse events.As such,this intervention is also recommended by the American Heart Association stroke guidelines from 2021.With regard to Intracranial hemorrhage,traditional practice has been to discontinue or avoid antiplatelet therapy in these patient groups.However,no studies have been done to evaluate this management strategy that is more borne out of the mechanism behind Aspirin’s effect on the coagulation pathway.Zhang et al evaluate the benefits of Aspirin on patients with low-volume intracranial hemorrhage,i.e.,less than 30 mL on computed tomo-graphy imaging,and show no increase in mortality.The caveat of this finding is that all outcomes were pooled into one group for results,and the number of patients was low.While more studies with larger patient groups are required,the data from Zhang et al suggests that patients with small-volume intracranial hemorrhages may benefit from Aspirin administration in the acute phase of management.

Piezo1 as a potential player in intracranial hemorrhage:From perspectives on biomechanics and hematoma metabolism

Intracranial hemorrhage(ICH)causes numerous neurological deficits and deaths worldwide each year,leaving a significant health burden on the public.The pathophysiology of ICH is complicated and involves both primary and secondary injuries.Hematoma,as the primary pathology of ICH,undergoes metabolism and triggers biochemical and biomechanical alterations in the brain,leading to the secondary injury.Past endeavors mainly aimed at biochemical-initiated mechanisms for causing secondary injury,which have made limited progress in recent years,although ICH itself is also highly biomechanics-related.The discovery of the mechanically-activated cation channel Piezo1 provides a new avenue to further explore the mechanisms underlying the secondary injury.The current article reviews the structure and gating mechanisms of Piezo1,its roles in the physiology/pathophysiology of neurons,astrocytes,microglia,and bone-marrow-derived macrophages,and especially its roles in erythrocytic turnover and iron metabolism,revealing a potential interplay between the biomechanics and biochemistry of hematoma in ICH.Collectively,these advances provide deeper insights into the secondary injury of ICH and lay the foundations for future research.

Intracranial hypertension as the primary symptom of malignant melanoma:A case report

BACKGROUND The etiological diagnosis of intracranial hypertension is quite complicated but important in clinical practice.Some common causes are craniocerebral injury,intracranial space-occupying lesion,subarachnoid hemorrhage,and hydrocephalus.When a patient presents with intracranial hypertension,the common causes are to be considered first so that other causes would be dismissed.With the morbidity lower than 9%,neuromelanin is very rare.Common symp-toms include nerve damage symptoms,epilepsy,psychiatric symptoms,and cognitive disorders.CASE SUMMARY We present a patient with melanoma which manifested with isolated intracranial hypertension without any other neurological signs.A 22-year-old male had repeated nausea and vomiting for 2 mo with Babinski sign(+)on both sides,nuchal rigidity,and subarachnoid hemorrhage.He had been diagnosed with melanoma and was given surgery and whole-brain radiation.Ultimately,the patient died 2 mo later.CONCLUSION Malignant melanoma should be taken into consideration in the differential diagnosis of intracranial hypertension.

Acquired factor XIII deficiency presenting with multiple intracranial hemorrhages and right hip hematoma:A case report

BACKGROUND Factor XIII(FXIII)deficiency is a rare yet profound coagulopathy.FXIII plays a pivotal role in hemostasis,and deficiencies in this factor can precipitate unchecked or spontaneous hemorrhaging.Immunological assays for detecting FXIII inhibitors are indispensable for diagnosing acquired FXIII deficiency;however,the availability of suitable testing facilities is limited,resulting in prolonged turnaround times for these assays.CASE SUMMARY In this case study,a 53-year-old male devoid of significant medical history presented with recurrent intracranial hemorrhages and a hematoma in the right hip.Subsequent genetic analysis revealed a homozygous mutation in the ACE gene,confirming the diagnosis of acquired FXIII deficiency.CONCLUSION This case underscores the significance of considering acquired deficiencies in clotting factors when evaluating patients with unexplained bleeding episodes.

Safety and efficacy of modified endoscopic ultrasound-guided selective N-butyl-2-cyanoacrylate injections for gastric variceal hemorrhage in left-sided portal hypertension

BACKGROUND Gastric variceal hemorrhage is one of the primary manifestations of left-sided portal hypertension(LSPH).The hemorrhage is fatal and requires safe and effective interventions.AIM To evaluate the clinical safety and efficacy of modified endoscopic ultrasound(EUS)-guided selective N-butyl-2-cyanoacrylate(NBC)injections for gastric variceal hemorrhage in LSPH.METHODS A retrospective observational study of patients with LSPH-induced gastric variceal hemorrhage was conducted.Preoperative EUS evaluations were performed.Enrolled patients were divided into modified and conventional groups according to the NBC injection technique.The final selection of NBC injection technique depended on the patients’preferences and clinical status.The technical and clinical success rates,operation time,NBC doses,perioperative complications,postoperative hospital stay,and recurrent bleeding rates were analyzed,respectively.RESULTS A total of 27 patients were enrolled.No statistically significant differences were observed between the two groups regarding baseline characteristics.In comparison to patients in the conventional group,patients in the modified group demonstrated significantly reduced NBC doses(2.0±0.6 mL vs 3.1±1.0 mL;P=0.004)and increased endoscopic operation time(71.9±11.9 min vs 22.5±6.7 min;P<0.001).Meanwhile,the two groups had no significant difference in the technical and clinical success rates,perioperative complications,postoperative hospital stay,and recurrent bleeding rates.CONCLUSION Modified EUS-guided selective NBC injections demonstrated safety and efficacy for LSPH-induced gastric variceal hemorrhage,with advantages of reduced injection dose and no radiation risk.Drawbacks were time consumption and technical challenge.

Clinical characteristics and risk factors of intracranial hemorrhage after spinal surgery

BACKGROUND Intracranial hemorrhage after spinal surgery is a rare and devastating complication.AIM To investigate the economic burden,clinical characteristics,risk factors,and mechanisms of intracranial hemorrhage after spinal surgery.METHODS A retrospective cohort study was conducted from January 1,2015,to December 31,2022.Patients aged≥18 years,who had undergone spinal surgery were included.Intracranial hemorrhage patients were selected after spinal surgery during hospitalization.Based on the type of spinal surgery,patients with intracranial hemorrhage were randomly matched in a 1:5 ratio with control patients without intracranial hemorrhage.The patients'pre-,intra-,and post-operative data and clinical manifestations were recorded.RESULTS A total of 24472 patients underwent spinal surgery.Six patients(3 males and 3 females,average age 71.3 years)developed intracranial hemorrhage after posterior spinal fusion procedures,with an incidence of 0.025%(6/24472).The prevailing type of intracranial hemorrhage was cerebellar hemorrhage.Two patients had a poor clinical outcome.Based on the type of surgery,30 control patients were randomly matched in 1:5 ratio.The intracranial hemorrhage group showed significant differences compared with the control group with regard to age(71.33±7.45 years vs 58.39±8.07 years,P=0.001),previous history of cerebrovascular disease(50%vs 6.7%,P=0.024),spinal dura mater injury(50%vs 3.3%,P=0.010),hospital expenses(RMB 242119.1±87610.0 vs RMB 96290.7±32029.9,P=0.009),and discharge activity daily living score(40.00±25.88 vs 75.40±18.29,P=0.019).CONCLUSION The incidence of intracranial hemorrhage after spinal surgery was extremely low,with poor clinical outcomes.Patient age,previous stroke history,and dura mater damage were possible risk factors.It is suggested that spinal dura mater injury should be avoided during surgery in high-risk patients.

Effect of intracranial hypertension on cerebral hemorrhage induced autonomic nerve imbalance

BACKGROUND： Cerebral hemorrhage can cause the imbalance of nerve function, whereas its mechanism and main impact factors are still not quite clear. OBJECTIVE： To explore the rules about the changes of intracranial pressure in brainstem hemorrhage and internal capsule hemorrhage, and analyze the role of intracranial hypertension in the changes of nerve function caused by cerebral hemorrhage. DESIGN： A self-controlled trial. SETTING： Department of Physiology, Tianjin Medical University. MATERIALS： Sixty-five healthy male Japanese white rabbits with long ears （1.5-1.8 kg） were supplied and fed by the Department of Animal Experiment of Tianjin Medical University. The RM6240B biological signal collecting and processing system was used. METHODS： The experiments were conducted in the Department of Physiology, Tianjin Medical University from August 2001 to May 2006. ① The rabbits were anesthetized, then fixed onto the brain stereotaxic apparatus, and afterwards fenestration on skull and intubation to lateral ventricle were performed.The dynamic changes of intracranial pressure were monitored continuously. Rabbits were infused with autologous arterial blood （0.3 mL） into midbrain corpora quadrigemina inferior colliculus to induce model of acute brainstem hemorrhage; models of internal capsule hemorrhage were established by infusing autologous arterial blood into internal capsule. ② The dynamic intracranial pressures under the above conditions were recorded continuously with the RM6240B biological signal collecting and processing system. ③ An animal model of persistent intracranial hypertension was established by infusion of physiologic saline into lateral ventricle. ④ The changes of the intensity of autonomic nerve discharge were analyzed, using the biological signal collecting and processing system before and after hemorrhage and under persistent intracranial hypertension.⑤ Ten animal models of internal capsule hemorrhage and 10 of bminstem hemorrhage were selected respectively, then gross pathological samples were cut open, and the accuracy of hemorrhage models was affirmed. Histological sections in hemorrhage point and around this point were prepared for with hernatoxylin and eosin staining, and the pathological changes were observed under light microscope. MAIN OUTCOME MEASURES： ① Changes of intracranial pressures before and after internal capsule hemorrhage and brainstem hemorrhage; ②Changes of the discharge intensity of cervical vagus nerve trunk in animal models of internal capsule hemorrhage, brainstem hemorrhage and persistent intracranial hypertension without hemorrhage; ③ Accuracy of location of internal capsule hemorrhage and brainstem hemorrhage confirmed by gross pathological samples and sections. RESULTS： Totally 65 rabbits were involved in the analysis of results. ① Dynamic state of intracranial pressure： Intracranial pressure increased obviously at 45 minutes after internal capsule hemorrhage and brainstem hemorrhage, the intracranial pressures were （1.31 ±0.30）, （1.82±0.45） kPa, which were obviously higher than those before hemorrhage [（1,04±0.18）, （1.05±0.19） kPa, P 〈 0.01]. ② Discharge of vagus nerve： Under intracranial hypertension, the discharge of cervical vagus nerve trunk was enhanced, and the discharge intensity of vagus nerve trunk was significantly different before and after persistent intracranial hypertension [（364.28±78.55）, （1252.19±151.75）μ V·s, P 〈 0.01]. The discharges of cervical vagus nerve trunk were significantly enhanced after internal capsule hemorrhage and brainstem hemorrhage （P 〈 0.01）. ③ Validation of hemorrhage sites： The hemorrhage sites were internal capsule and brainstem on histopathological sections. CONCLUSION： Intracranial pressure may play an important role in the pathophysiological process of vagus nerve imbalance caused by cerebral hemorrhage.

TCD value for evaluating the intracranial hypertension and nerve injury in patients with hypertensive cerebral hemorrhage

Objective: To evaluate the assessment of intracranial hypertension and nerve injury in patients with hypertensive cerebral hemorrhage by transcranial Doppler (TCD). Methods: The patients who were hospitalized for hypertensive cerebral hemorrhage between August 2014 and February 2017 were selected as the cerebral hemorrhage group and healthy subjects who received physical examination during the same period were selected as the control group;TCD was used to determine the PI of affected-side and unaffected-side middle cerebral artery in cerebral hemorrhage group and lumbar puncture was done to measure intracranial pressure. The serum was collected from the two groups to detect the levels of inflammatory cytokines and nerve injury markers. Results: PI level in affected-side middle cerebral artery of cerebral hemorrhage group was significantly higher than that in the unaffected-side and positively correlated with intracranial pressure level;serum IL-1β, TNF-α, ICAM-1, MMP9, YKL-40, Asp, Glu, NPY, NSE and GFAP levels of cerebral hemorrhage group were significantly higher than those of control group, and serum IL-1β, TNF-α, ICAM-1, MMP9, YKL-40, Asp, Glu, NPY, NSE and GFAP levels of cerebral hemorrhage group of patients with high PI level were significantly higher than those of cerebral hemorrhage group of patients with low PI level. Conclusion: TCD parameters can evaluate the degree of intracranial pressure increase and nerve injury in patients with hypertensive cerebral hemorrhage.

Prevention and Treatment of Hemorrhage during Laparoscopic Splenectomy and Devascularization for Portal Hypertension

This study was aimed to explore prevention and treatment of hemorrhage during laparoscopic splenectomy plus devascularization（LSD） for portal hypertension by modified and simplified operation. From June 2012 to June 2014, LSD was performed on 138 patients with portal hypertension. The patients were allocated into two groups： earlier stage（ES） group, in which 45 patients received traditional LSD from June 2012 to Sep. 2012; later stage（LS） group, in which 93 patients underwent modified LSD from Jan. 2013 to June 2014. Perioperative variables were compared between the two groups. Laparoscopic operations were successfully performed in all but two patients in ES group who were converted to laparotomy（total conversion rate： 1.4%）. There was no perioperative death or reoperation, and all patients recovered and were discharged from hospital with no serious complications in the six months of postoperative follow-up. The average time in the ES group was longer than that in the LS group（335.1 min vs. 201.3 min, P〈0.05）. LS group outperformed ES group in terms of blood loss（705.4 m L vs. 910.4 mL, P〈0.05）. The average operation time to oral diet intake after surgery（40.5 h vs. 50.3 h, P〈0.05） and postoperative hospital stay（7.4 d vs. 9.0 days, P〈0.05） were much less in the LS group than in the ES group. The overall complication rate（4.3 % vs. 11.1 %, P〈0.05） and conversion rate（0% vs. 4.4%, P〈0.05） were lower in the LS group than in the ES group. It was concluded that prevention and treatment of hemorrhage are the key points of LSD for portal hypertension. By creating a tunnel above the splenic pedicle and a tunnel behind the lower esophagus, the simplified and modified LSD can reduce hemorrhage and improve success of surgery dramatically, and splenomegaly and severe varices are not contraindications.

Brain edema and intracranial hypertension in fulminant hepatic failure:Pathophysiology and management

Intracranial hypertension is a major cause of morbidity and mortality of patients suffering from fulminant hepatic failure. The etiology of this intracranial hypertension is not fully determined, and is probably multifactorial, combining a cytotoxic brain edema due to the astrocytic accumulation of glutamine, and an increase in cerebral blood volume and cerebral blood flow, in part due to inflammation, to glutamine and to toxic products of the diseased liver. Validated methods to control intracranial hypertension in fulminant hepatic failure patients mainly include mannitol, hypertonic saline, indomethacin, thiopental, and hyperventilation. However all these measures are often not sufficient in absence of liver transplantation, the only curative treatment of intracranial hypertension in fulminant hepatic failure to date. Induced moderate hypothermia seems very promising in this setting, but has to be validated by a controlled, randomized study. Artificial liver support systems have been under investigation for many decades. The bioartiflcial liver, based on both detoxification and swine liver cells, has shown some efficacy on reduction of intracranial pressure but did not show survival benefit in a controlled, randomized study. The Molecular Adsorbents Recirculating System has shown some efficacy in decreasing intracranial pressure in an animal model of liver failure, but has still to be evaluated in a phase Ⅲ trial.

Subdural empyema complicated with intracranial hemorrhage in a postradiotherapy nasopharyngeal carcinoma patient: A case report and review of literature

The prevalence of nasopharyngeal carcinoma(NPC) is higher in southern China, Hong Kong, and Taiwan than in other areas in the world. Radiotherapy is an important part of treatment for NPC patients, especially those with stage Ⅲ/Ⅳ disease. Subdural empyema is a rare but life-threatening complication in postradiotherapy NPC patients which should be paid more attention. Here, we present the case of a 64-year-old female postradiotherapy NPC patient with subdural empyema complicated with intracranial hemorrhage. She was treated by burr-hole surgery but unfortunately died because of recurrent intracranial hemorrhage. The mechanisms potentially underlying the formation of subdural empyema in postradiotherapy NPC patients and the surgical strategies that can be used in these patients are discussed in this report.

Risk factors for delayed intracranial hemorrhage secondary to ventriculoperitoneal shunt:A retrospective study

BACKGROUND Delayed intracranial hemorrhage(DICH),a potential complication of ventriculoperitoneal(VP)shunts,has been associated with high mortality,but its risk factors are still unclear.AIM To investigate the risk factors of DICH after VP shunts.METHODS We compared the demographic and clinical characteristics of DICH and non-DICH adult patients with VP shunts between January 2016 and December 2020.RESULTS The 159 adult VP shunt patients were divided into 2 groups according to the development of DICH:the DICH group(n=26)and the non-DICH group(n=133).No statistically significant difference was found in age,sex,laboratory examination characteristics or preoperative modified Rankin Scale(mRS)score between the DICH and non-DICH groups(P>0.05);however,a history of an external ventricular drain(EVD)[P=0.045;odds ratio(OR):2.814;95%CI:1.024-7.730]and postoperative brain edema around the catheter(P<0.01;OR:8.397;95%CI:3.043-23.171)were associated with a high risk of DICH.A comparison of preoperative mRS scores between the DICH group and the non-DICH group showed no significant difference(P=0.553),while a significant difference was found in the postoperative mRS scores at the 3-mo follow-up visit(P=0.024).CONCLUSION A history of EVD and postoperative brain edema around the catheter are independent risk factors for DICH in VP shunt patients.DICH patients with a high mRS score are vulnerable to poor clinical outcomes.

Optical coherence tomography use in idiopathic intracranial hypertension

Idiopathic intracranial hypertension(IIH)is a condition in which elevated pressure in the cerebrospinal fluid can lead to optic nerve head(ONH)dysfunction and subsequent visual impairment.Physicians are currently limited in their ability to monitor and manage this condition,as clinical symptoms and exam findings are often delayed in response to changes in intracranial pressure.In order to find other biomarkers of disease,researchers are using imaging modalities such as optical coherence tomography(OCT)to observe microscopic changes in the eye in this condition.OCT can create 2-dimensional and 3-dimensional high definition images of the retina of the ONH and has been used to study various conditions such as glaucoma and multiple sclerosis.Numerous studies have used OCT in IIH as well,and they have shown that certain retinal layers and the ONH change in thickness and shape in both the short and long term with intracranial pressure changes.OCT is a promising modality for clinical and scientific evaluation of IIH as it is a noninvasive and practical tool to obtain in depth images.This review will discuss how OCT can be used to assess a patient with IIH,both before and after treatment,along with its limitations and future applications.

Intracranial Hypertension Syndrome in Systemic Lupus Erythematosus: Clinical Analysis and Review of the Literature

In order to better understand the clinical manifestation of systemic lupus erythematosus （SLE） with intracranial hypertension syndrome （IHS）, we analyzed the clinical features and treatment of a typical SLE patient with IHS. SLE is one of the most unpredictable autoimmune diseases involving multiple organ systems that is defined clinically and associated with antibodies directed against cell nuclei. IHS is an uncommon manifestation of neuropsychiatric SLE （NPSLE） and is characterized by an elevated intracranial pressure, papilledema, and headache with occasional abducens nerve paresis, absence of a space-occupying lesion or ventricular enlargement, and normal cerebrospinal fluid chemical and hematological constituents. IHS has been reported in a few sporadic cases in patients with SLE worldwide, but rarely has been reported in China. In this study, a 34-year-old female SLE patient with IHS was. reported and pertinent literature reviewed. The clinical presentation, image logical features, and investigatory findings were discussed.

Intracranial hemorrhage in patients treated with bevacizumab:Report of two cases

Treatment with bevacizumab,an antiangiogenic agent,in patients with metastatic or unresectable colorectal cancer was approved less than 4 years ago in Japan.Bevacizumab improves the survival of patients with metastatic colorectal cancer;however,it may lead to complications such as bleeding,which are sometimes fatal.Bevacizumab should be administered only after careful consideration because the potential risks of therapy outweigh its benefits.Therefore,pharma-ceutical companies do not recommend bevacizumab therapy for patients with brain metastases.While some reports support the cautious use of bevacizumab,others report that it is not always necessary to prohibit its use in patients with metastases to the central nervous system(CNS),including the brain.Thus,bevacizumab therapy in colorectal cancer patients with brain metastases is controversial,and it is unclear whether brainmetastases are a risk factor for intracranial hemor-rhage during anti-vascular endothelial growth factor(VEGF)therapy.We report a 64-year-old man and a 65-year-old man with recurrent colorectal cancer with-out brain metastases;these patients developed multifocal and solitary intracranial hemorrhage,respectively,after the administration of bevacizumab.Our findings suggest that intracranial hemorrhage can occur even if the patient does not have brain metastases prior to bevacizumab treatment and also suggest that brain metastases are not a risk factor for intracranial hemor-rhage with bevacizumab treatment.These findings also question the necessity of excluding patients with brain metastases from clinical trials on anti-VEGF therapy.

Pharmacological potential of acetazolamide in traumatic intracranial hypertension

Traumatic brain injuries are an important cause of morbidity and mortality around the world. These types of lesions are often associated with increased intracranial pressure and cerebral edema, proper management of this can reduce tissue damage of the brain and improve brain perfusion. The use of acetazolamide is not indicated in guidelines for the management of intracranial hypertension, which is used to a great extent for the management of idiopathic intracranial hypertension. However, it is not yet known in the management of traumatic intracranial hypertension.

Intracranial Hemorrhage in Newborn with TAR Syndrome—A Feared Complication

The thrombocytopenia-absent radius (TAR) syndrome is an autosomal recessive disease characterized by bilateral absence of radius with the presence of both thumbs and thrombocytopenia, many times associated with cardiac anomalies, intolerance or allergy to cow’s milk and phocomelia. Imaging study is important for the correct diagnosis at birth and documentation of one of the diagnosis criteria (absence of radius) in prenatal care. The main hematologic symptoms and the most feared of them, intracranial bleeding, occurs when platelets levels are below 10,000/mm3, which is more common during the first months. Therefore, imaging study is crucial to quickly identify complications and correctly manage the case. In this case report, the patient had upper limps alterations at birth and at first week presented seizures, with transfontanellar ultrasound and head computed tomography without contrast demonstrating intracranial hemorrhage. Laboratory results and imaging review were able to diagnose TAR syndrome. The patient was treated with platelets transfusion and thrombocytopenia was solved. She is currently under specialized medical care, with no neurological deficits and showing satisfactory development.

Idiopathic Intracranial Hypertension without Papilloedema “Case Report”

Purpose: The purpose of this case report is to share and spread the awareness of diagnosing and managing idiopathic intracranial hypertension in atypical scenarios as in this case, who presented with multiple other medical conditions, and had no papilloedema. The presenting signs and symptoms of mere headache were misleading. The other medical conditions could have explained the patient’s headache. These included cervical spine osteoporosis, and middle ear otolith disease. This case is unique because she was found to have IIH without papilloedema, and despite having multiple cancers in the uterus, breasts, and recently the thyroid, she had no malignant cells in the CSF. The patient was treated for IIH, and her malignancies were treated separately by the corresponding physicians. Method: The patient was assessed in 2019, and was followed up closely till 2021, in collaboration with her neurologist, oncologist, and orthopedist. Result: The patient had IIH after her neurologist attempted a lumbar puncture, which showed high CSF pressure. Conclusion: Headache is a common symptom presented by patients of different ages and backgrounds. The absence of papilloedema does not exclude the diagnosis of IIH. When possible etiologies for headache are ruled out (e.g. middle and inner ear infections, anemia, intracranial tumors, glaucoma, etc.), chronic headaches that do not respond to medications, and present with visual field changes may require a lumbar puncture.

CT examination, clinical situation and experimental characteristics of infants with intracranial hemorrhage induced by delayed vitamin K deficiency

BACKGROUND: Delayed vitamin K deficiency is characterized by acute onset, severe illness and high fatality rate. 33%-50% survivors accompany with other various nervous system sequelas. Therefore, diagnosis and treatment of intracranial hemorrhage in time become a key factor for improving healing rate and reducing fatality rate and incidence of sequela. OBJECTIVE: To investigate the clinical situation, experimental characteristics, CT examination and terminative characteristics of infants with intracranial hemorrhage induced by delayed vitamin K deficiency. DESIGN: Case analysis. SETTING: Department of Pediatrics, Zhongshan Hospital Affiliated to Xiamen University. PARTICIPANTS: A total of 17 infants with intracranial hemorrhage induced by delayed vitamin K deficiency aged 1-3 months including 11 boys and 6 girls were selected from Department of Pediatrics, Zhongshan Hospital Affiliated to Xiamen University from January 1994 to December 2005. All infants had drowsiness, rejective milk, spiting milk, gaze of both eyes, tic, coma, full anterior fontanelle, high muscular tension and cerebral hernia, etc. Experimental examination demonstrated that infants had anemia at various degrees; prothrombin time and partial thromboplastin time were prolonged; platelet count was normal. CT examination indicated that screenages of subarachnoid hemorrhage, subdural hematoma, cerebral parenchyma hemorrhage and intraventricular hemorrage were changed. Hemorrhage was stopped by the application of vitamin K. All patients provided informed consent. METHODS: ① Clinical situation and physical sign of infants were observed after hospitalization and scanned with rapid spiral CT scanning system. The thickness and average space of layers were 8-10 mm and the scanning time was 5 s with window width of 30-80 Hu and window position of 28-35 Hu. ② After hospitalization, four items of blood coagulation was measured with Futura meter and biochemical indexes of blood, such as serum calcium, serum alkaline phosphatase, total bilirubin, direct bilirubin and indirect bilirubin, were detected with Roche Modular PPI automatic biochemistry analyzer. ③ After hospitalization, infants were given 5-10 mg vitamin K1 for 3-5 days, and then, they were transfused with 10-15 mL/kg fresh plasma or whole blood for 1-3 times and received other relative therapies. Therapeutic effects were evaluated based on clinical diagnosis and criteria. MAIN OUTCOME MEASURES: ① Clinical situation, physical sign and CT examination; ② results of experimental examination; ③ treatment and termination. RESULTS: A total of 17 infants with intracranial hemorrhage were involved in the final analysis. ① Clinical situation, physical sign and CT examination: All infants had pale facial expression and full or bossing anterior fontanelle. Among them, 13 infants had drowsiness or dysphoria, 12 rejective milk or emesis, 11 tic, 13 injection site hemorrhage, 2 gastrointestinal hemorrhage, 3 cerebral hernia, 11 high muscular tension and 6 cervical rigidity. CT examination demonstrated that most infants (88%, 15/17) had subarachnoid hemorrhage; 10 (59%, 10/17) had subdural hematoma; 8 (47%, 8/17) had cerebral parenchyma hemorrhage; few had intraventricular hemorrhage. In addition, results of CT examination also indicated that 17 infants had intracranial hemorrhage. Hemorrhage sites of 12 infants were equal to or more than 2, which was accounted for 70% (12/17); meanwhile, partial cases accompanied with a large area of focus of cerebral infarction or cerebral hypoxia-ischemia lesion. ② Results of experimental examination: There were 6 infants with elongation of prothrombin time, 5 with partial elongation of prothrombin time, 4 with decrease of serum calcium (1.69-2.25 mmol/L), 3 with increase of serum alkaline phosphatase, 3 with increase of total bilirubin, 3 with increase of direct bilirubin, and 3 with increase of indirect bilirubin. ③ Treatment and termination: After treatment, 12 infants were cured well, 3 improved, 1 given up and 1 died. Later, ten infants received CT re-examination at 3 months after treatment. The results indicated that 3 infants had simple subarachnoid hemorrhage and 4 had subarachnoid hemorrhage accompanying with subdural hematoma. Their focuses were absorbed well and not show as obvious sequela. One infant had subdural hematoma accompanying with subarachnoid hemorrhage, cerebral parenchyma hemorrhage, intraventricular hemorrage and cerebral hypoxia ischemia, and then, after hematom absorption, obvious cerebral malacia focus, hydrocephalus, brain atrophy and inferior accumulating fluid of dura mater were observed; 2 had subdural hematoma accompanying with subarachnoid hemorrhage and cerebral hypoxia ischemia, and then, after bleeding absorption, brain atrophy was changed remarkably; changes of hydrocephalus were observed in one infant. CONCLUSION: ① Symptoms of pale facial expression, full or bossing anterior fontanelle, drowsiness and dysphoria are observed in infants with delayed vitamin K deficiency . ② Experimental indexes demonstrate that prothrombin time and partial prothrombin time are prolonged, and numbers of infants having decrease of serum calcium are in the third place. ③ Poly-intracranial hemorrhage is a notable characteristic of CT examination. Partial infants who have poly-intracranial hemorrhage always accompany with cerebral hypoxia-ischemia lesion or cerebral infarction. Clinical situation and prognosis of infants who have a large area of intracranial hemorrhage and cerebral hypoxia-ischemia changes are poor; however, those of infants who have simple subarachnoid hemorrhage or combination of subarachnoid hemorrhage with subdural hematoma are well. ④ Effect of vitamin K on this kind of disease is well.

Shunting,optic nerve sheath fenestration and dural venous stenting for medically refractory idiopathic intracranial hypertension:systematic review and meta-analysis

Background:Cerebrospinal fluid(CSF)-diversion procedures have traditionally been the standard of treatment for patients with medically refractive idiopathic intracranial hypertension(IIH).However,dural venous sinus stent(VSS)placement has been described as a safe and effective procedure for the management of medically refractive IIH.We performed a meta-analysis comparing outcomes and complications of CSF-diversion procedures,VSS and optic nerve sheath fenestration(ONSF)for the treatment of medically refractive IIH.Methods:Electronic searches were performed using six databases from 1988 to January 2017.Data was extracted and meta-analysed from the identified studies.Results:From 55 pooled studies,there were 538 CSF-diversion cases,224 dural venous stent placements,and 872 ONSF procedures.Similar improvements were found in terms of postoperative headaches(CSF vs.VSS vs.ONSF:84%vs.78%vs.62%,P=0.223),papilledema(CSF vs.VSS vs.ONSF:71%vs.86%vs.77%,P=0.192),whilst visual acuity changes favored venous stenting(CSF vs.VSS vs.ONSF:55%vs.69%vs.44%,P=0.037).There was a significantly lower rate of subsequent procedures with venous stent placement(CSF vs.VSS vs.ONSF:37%vs.13%vs.18%,P<0.001),but other complication rates were similar(CSF vs.VSS vs.ONSF:13%vs.8%vs.14%,P=0.28).Subgroup analysis of lumbar-peritoneal vs.ventriculoperitoneal shunts found no differences in symptom improvements,complications and subsequent procedure rates.Conclusions:Our findings suggest that dural venous sinus stenting may be a viable alternative to traditional surgical interventions in patients who are refractory to medical treatment.