Patient Outcomes in Traumatic Subarachnoid Hemorrhage: A Retrospective Analysis.

INTRODUCTION: Patients with isolated traumatic subarachnoid hemorrhage (itSAH) are often transferred to a Level I or II trauma center for neurosurgical evaluation. Recent literature suggests that some patients, such as those with high Glasgow Coma Scale (GCS) scores, may be safely observed without neurosurgical consultation. The objective of this study was to investigate characteristics of patients with itSAH to determine the clinical utility of neurosurgical evaluation and repeat imaging. MATERIALS AND METHODS: A retrospective chart review of 350 patients aged ≥ 18 y with initial computed tomography head (CTH) showing itSAH and GCS scores of 13-15. Patient demographics, medical history, medications, length of stay, transfer status, injury type and severity, and CTH results were extracted for analysis. Bivariate analyses were conducted to determine whether any factors were associated with a worsening repeat CTH. RESULTS: Most patients were female (57.4%) with blunt injuries (99.1%). The median age was 73 y. Neurosurgery was consulted for 342 (97.7%) patients, with one (0.3%) requiring intervention. Of 311 (88.9%) repeat imaging, 16 (5.1%) showed worsening. Factors with statistically significant associations with worsening CTH included injury severity; neurological deficit; lengths of stay; and a history of congestive heart failure, cirrhosis, or substance use disorder. CONCLUSIONS: The findings suggest that patients with itSAH and high GCS scores may be able to be managed safely without neurosurgical oversight. The factors strongly associated with worsening CTH may be useful in identifying patients who need transfer for intensive care. Further research is needed to confirm these findings and develop appropriate management strategies for patients with itSAH.

Do All Isolated Traumatic Subarachnoid Hemorrhages Need to Be Transferred to a Level 1 Trauma Center?

BACKGROUND: The management of isolated traumatic subarachnoid hemorrhage (itSAH) in non-trauma centers usually results in transfer to a Level 1 trauma center with neurosurgical capabilities. Due to lack of trauma center resources, we sought to evaluate if patients with itSAH need transfer to a Level I trauma center. METHODS: A retrospective review of the trauma registry was conducted from Jan 2015-Dec 2020. Patients with itSAH on initial computed tomographic imaging and a Glasgow Coma Scale score >13 were included. Patients with any other intracranial pathology, skull fractures, multi-system trauma or age less than 15 were excluded. RESULTS: 120 patients were identified with itSAH. Mean age was 63 years, and 44% were male. Mean injury severity score was 4.7 with 48% on anticoagulation/antiplatelet therapy. Radiology Reports were reviewed and only 2 scans (1.7%) showed an increase in itSAH, 98.3% reports revealed no change, improvement, or resolution. No patients deteriorated and no patients underwent neurosurgical intervention. Once admitted, 27 (23%) were treated for acute medical conditions and 39 (33%) required subspecialty medical consultations. There was no difference in increased itSAH on repeat imaging between patients on anticoagulation/antiplatelet therapy and those without. The population taking anticoagulant/antiplatelet therapy was older, more likely to have suffered a fall, have more comorbid conditions, was more likely to be treated for a non-traumatic medical condition and have a subspecialty medical consultation. DISCUSSION: Patients with itSAH do not require transfer to a Level 1 trauma center for acute neurosurgical intervention.

Midbrain injury in patients with subarachnoid hemorrhage: a diffusion tensor imaging study.

We investigated the characteristics of midbrain injuries in patients with spontaneous subarachnoid hemorrhage (SAH) by using diffusion tensor imaging (DTI). Twenty-seven patients with SAH and 25 healthy control subjects were recruited for this study. Fractional anisotropy (FA) and mean diffusivity (MD) data were obtained for four regions of the midbrain (the anterior ventral midbrain, posterior ventral midbrain, tegmentum area, and tectum) in 27 hemispheres that did not show any pathology other than SAH. The mean FA and MD values of the four regions of the midbrain (anterior ventral midbrain, posterior ventral midbrain, tegmentum, and tectum) of the patient group were significantly lower and higher than those of the control group, respectively (p < 0.05). The mean FA values of the patient group were significantly different among the anterior ventral midbrain, posterior ventral midbrain, tegmentum, and tectum regions (ANOVA; F = 3.22, p < 0.05). Post hoc testing showed that the mean FA value of the anterior ventral midbrain was significantly lower than those of the posterior ventral midbrain, tegmentum, and tectum (p < 0.05); in contrast, there were no differences in mean FA values of the posterior ventral midbrain, tegmentum, and tectum (p > 0.05). However, differences were not observed among four regions of the midbrain (anterior ventral midbrain, posterior ventral midbrain, tegmentum, and tectum) in the mean MD values. We detected evidence of neural injury in all four regions of the midbrain of patients with SAH, and the anterior ventral midbrain was the most severely injured among four regions of the midbrain. Our results suggest that a pathophysiological mechanism of these neural injuries might be related to the occurrence of a subarachnoid hematoma.

Traumatic Subarachnoid Hemorrhage: A Scoping Review.

Sixty-nine million people have a traumatic brain injury (TBI) each year, and TBI is the most common cause of subarachnoid hemorrhage (SAH). Traumatic SAH (TSAH) has been described as an adverse prognostic factor leading to progressive neurological deterioration and increased morbidity and mortality. A limited number of studies, however, evaluate recent trends in the diagnosis and management of SAH in the context of trauma. The objective of this scoping review was to understand the extent and type of evidence concerning the diagnostic criteria and management of TSAH. This scoping review was conducted following the Joanna Briggs Institute methodology for scoping reviews. The review included adults with SAH secondary to trauma, where isolated TSAH (iTSAH) refers to the presence of SAH in the absence of any other traumatic radiographic intracranial pathology, and TSAH refers to the presence of SAH with the possibility or presence of additional traumatic radiographic intracranial pathology. Data extracted from each study included study aim, country, methodology, population characteristics, outcome measures, a summary of findings, and future directives. Thirty studies met inclusion criteria. Studies were grouped into five categories by topic: TSAH associated with mild TBI (mTBI), n = 13), and severe TBI (n = 3); clinical management and diagnosis (n = 9); imaging (n = 3); and aneurysmal TSAH (n = 1). Of the 30 studies, two came from a low- and middle-income country (LMIC), excluding China, nearly a high-income country. Patients with TSAH associated with mTBI have a very low risk of clinical deterioration and surgical intervention and should be treated conservatively when considering intensive care unit admission. The Helsinki and Stockholm computed tomography scoring systems, in addition to the American Injury Scale, creatinine level, age decision tree, may be valuable tools to use when predicting outcome and death.

Traumatic Subarachnoid Hemorrhage and Subdural Hematoma Due to Acute Rebleeding of a Pseudoaneurysm with Dural Arteriovenous Fistula Between Inferolateral Trunk of the Internal Carotid Artery and Middle Cerebral Vein.

BACKGROUND: According to previous reports, pseudoaneurysms that are concomitant with a dural arteriovenous fistula (dAVF) are associated with penetrating trauma, blunt trauma, and skull fractures. Moreover, dAVFs between the inferolateral trunk of the internal carotid artery and middle cerebral vein are a rare disease manifestation. Pseudoaneurysms concomitant with dural arteriovenous fistulas (dAVF) are rare and traumatic pseudoaneurysms with dAVF typically developed slowly with less rebleeding than isolated traumatic aneurysms. CASE DESCRIPTION: Here, we report an extremely rare case of a traumatic pseudoaneurysm with a dAVF between the inferolateral trunk and middle cerebral vein. The traumatic pseudoaneurysm presented with acute pseudoaneurysm formation and rebleeding within 1 day of the trauma and was managed with direct surgery. CONCLUSIONS: The traumatic pseudoaneurysm was completely obliterated by surgical clipping, followed by decompressive craniectomy and postoperative coma therapy with propofol. Resulting from these surgical and postoperative treatments, 56 days after the operation the patient recovered fully and did not present any neurologic deficits.

Diffuse Traumatic Subarachnoid Hemorrhage Mimicking Aneurysmal Bleeding Secondary to Ophthalmic Artery Avulsion: Case Report and Review of the Literature.

BACKGROUND: Traumatic subarachnoid hemorrhage (SAH) is a common finding following traumatic brain injury. In some cases, it can be associated with hydrocephalus. This type of hemorrhage is mostly caused by the rupture of small vessels in the brain and is usually managed conservatively. CASE DESCRIPTION: We present a case of a 60-year-old woman who presented with traumatic luxation of the eye following a fall. This resulted in diffuse SAH (Fisher grade IV) with associated hydrocephalus. We also report on 3 previous similar cases found in the literature. Avulsion of the ophthalmic artery was found to be the cause of the traumatic SAH. Apart from cerebrospinal fluid diversion using an external ventricular drain, the case was managed conservatively. There was no evidence of delayed clinical or radiologic vasospasm. CONCLUSIONS: Traumatic avulsion of the ophthalmic artery may result in diffuse SAH, mimicking that of aneurysmal rupture. This case shows that management of early complications, such as hydrocephalus and seizures, should be the main aim. Surgical or endovascular treatment of the injured artery, however, would be unnecessary.

Complications, outcomes, and management strategies of non-missile penetrating head injuries.

OBJECTIVE: While high-velocity missile injury (gunshot) is associated with kinetic and thermal injuries, non-missile penetrating head injury (NMPHI) results in primary damage along the tract of the piercing object that can be associated with significant secondary complications. Despite the unique physical properties of NMPHI, factors associated with complications, expected outcomes, and optimal management have not been defined. In this study, the authors attempted to define those factors. METHODS: Consecutive adult patients with NMPHI who presented to Tygerberg Academic Hospital (Cape Town, South Africa) in the period from August 1, 2011, through July 31, 2018, were enrolled in a prospective study using a defined treatment algorithm. Clinical, imaging, and laboratory data were analyzed. RESULTS: One hundred ninety-two patients (185 males [96%], 7 females [4%]) with 192 NMPHIs were included in this analysis. The mean age at injury was 26.2 ± 1.1 years (range 18-58 years). Thirty-four patients (18%) presented with the weapon in situ. Seventy-one patients (37%) presented with a Glasgow Coma Scale (GCS) score of 15. Weapons included a knife (156 patients [81%]), screwdriver (18 [9%]), nail gun (1 [0.5%]), garden fork (1 [0.5%]), barbeque fork (1 [0.5%]), and unknown (15 [8%]). The most common wound locations were temporal (74 [39%]), frontal (65 [34%]), and parietal (30 [16%]). The most common secondary complications were vascular injury (37 patients [19%]) and infection (27 patients [14%]). Vascular injury was significantly associated with imaging evidence of deep subarachnoid hemorrhage and an injury tract crossing vascular territory (p ≤ 0.05). Infection was associated with delayed referral (> 24 hours), lack of prophylactic antibiotic administration, and weapon in situ (p ≤ 0.05). A poorer outcome was associated with a stab depth > 50 mm, a weapon removed by the assailant, vascular injury, and eloquent brain involvement (p ≤ 0.05). Nineteen patients (10%) died from their injuries. The Glasgow Outcome Scale (GOS) score was linearly related to the admission GCS score (p < 0.001). One hundred forty patients (73%) had a GOS score of 4 or better at discharge. CONCLUSIONS: The most common NMPHI secondary complications are vascular injury and infection, which are associated with specific NMPHI imaging and clinical features. Identifying these features and using a systematic management paradigm can effectively treat the primary injury, as well as diagnose and manage NMPHI-related complications, leading to a good outcome in the majority of patients.

Factors associated with the severity of neonatal subgaleal haemorrhage following vacuum assisted delivery.

OBJECTIVE: To evaluate factors associated with subgaleal hemorrhage (SGH) severity following attempted vacuum-assisted delivery (VAD). STUDY DESIGN: This retrospective cohort study was conducted in a tertiary medical center. The population comprised parturients who delivered at our medical center during 2009-2018, and who underwent attempted VAD with singleton pregnancies that resulted in neonatal SGH formation. SGH severity was classified as mild and non-mild (moderate or severe). The main outcome measures were determinants associated with SGH severity. RESULTS: Among 350 neonates with SGH, the degree of severity was non-mild for 48 (13.7%). Compared to the mild group, in the non-mild group, small for gestational age was more common (8.2% vs. 2.6%, p = 0.04). Compared to the mothers in the mild group, in the non-mild group, the proportion with two or more deliveries was lower (0% vs. 7.3%, p = 0.05), gestational diabetes was more common (12.5% vs. 4.6%, p = 0.02), the rate of cervical ripening was higher (27.1% vs. 12.9%, p = 0.02), the duration of the second stage of delivery was longer (mean 177 vs. 152 min, p = 0.04), and the rate of two dislodgments was higher (31.2% vs. 15.2%, p = 0.006). On multivariate analysis, only cervical ripening (adjusted odds ratio [OR]: 2.50; 95% confidence interval [CI]: 1.20-5.26; P = 0.01 and second stage duration (adjusted OR: 1.13; 95% [CI]: 1.00-1.29; P = 0.05) were independently associated with more severe SGH. CONCLUSIONS: The duration of second stage and ripening of the cervix during induction of labor are independently associated with SGH severity following attempted VAD.

Concurrent Types of Intracranial Hemorrhage are Associated with a Higher Mortality Rate in Adult Patients with Traumatic Subarachnoid Hemorrhage: A Cross-Sectional Retrospective Study.

Traumatic subarachnoid hemorrhage (SAH) is the second most frequent intracranial hemorrhage and a common radiologic finding in computed tomography. This study aimed to estimate the risk of mortality in adult trauma patients with traumatic SAH concurrent with other types of intracranial hemorrhage, such as subdural hematoma (SDH), epidural hematoma (EDH), and intracerebral hemorrhage (ICH), compared to the risk in patients with isolated traumatic SAH. We searched our hospital's trauma database from 1 January, 2009 to 31 December, 2018 to identify hospitalized adult patients ≥20 years old who presented with a trauma abbreviated injury scale (AIS) of ≥3 in the head region. Polytrauma patients with an AIS of ≥3 in any other region of the body were excluded. A total of 1856 patients who had SAH were allocated into four exclusive groups: (Group I) isolated traumatic SAH, n = 788; (Group II) SAH and one diagnosis, n = 509; (Group III) SAH and two diagnoses, n = 493; and (Group IV) SAH and three diagnoses, n = 66. One, two, and three diagnoses indicated occurrences of one, two, or three other types of intracranial hemorrhage (SDH, EDH, or ICH). The adjusted odds ratio with a 95% confidence interval (CI) of the level of mortality was calculated with logistic regression, controlling for sex, age, and pre-existing comorbidities. Patients with isolated traumatic SAH had a lower rate of mortality (1.8%) compared to the other three groups (Group II: 7.9%, Group III: 12.4%, and Group IV: 27.3%, all p < 0.001). When controlling for sex, age, and pre-existing comorbidities, we found that Group II, Group III, and Group IV patients had a 4.0 (95% CI 2.4-6.5), 8.9 (95% CI 4.8-16.5), and 21.1 (95% CI 9.4-47.7) times higher adjusted odds ratio for mortality, respectively, than the patients with isolated traumatic SAH. In this study, we demonstrated that compared to patients with isolated traumatic SAH, traumatic SAH patients with concurrent types of intracranial hemorrhage have a higher adjusted odds ratio for mortality.

Posttraumatic Middle Meningeal Artery Pseudoaneurysm: Case Report and Review of the Literature.

BACKGROUND: Intracranial pseudoaneurysm is a rare entity, with few cases described in the literature, and is mostly associated with a history of traumatic brain injury. Traumatic aneurysms comprise <1% of all intracranial aneurysms. In particular, middle meningeal artery (MMA) aneurysms are uncommon and usually caused by a skull fracture in the temporal region. About 40 traumatic MMA aneurysms are reported in the literature, and only 28 nontraumatic aneurysms are reported, usually related to high-flow conditions. The behavior of these aneurysms is largely unknown: both spontaneous resolution and aneurysm growth, leading to subsequent rupture, have been reported. Surgical and endovascular management are feasible for MMA aneurysms; however, the criterion standard treatment is not defined. CASE DESCRIPTION: We report the case of a traumatic pseudoaneurysm of the right MMA treated with an endovascular approach and provide a review of the literature. CONCLUSIONS: Aneurysms of the MMA are a rare entity that must be taken into account in the setting of a traumatic brain injury or predisposing factors. The diagnosis and aggressive treatment are mandatory, preventing the devastating consequences of their rupture. Endovascular and surgical techniques are well defined and available, even though there is not a demonstrated superiority in any of them.

How to Remove a Penetrating Intracranial Large Nail.

BACKGROUND: The incidence of penetrating intracranial foreign bodies is rare, and to date, not many relevant studies have been published worldwide. In particular, a nail penetrating intracranially, just near the superior sagittal sinus (SSS), is extremely rare. We treated the case of a large nail that penetrated the middle of the head and strategized its removal. CASE DESCRIPTION: A 70-year-old man had experienced headache lasting a day. Computed tomography of the brain revealed a nail penetrating the middle of his head; in particular, the tip of the nail had penetrated the right ventricle, causing a slight subarachnoid hemorrhage. Angiography showed that the nail was very close to the SSS and that the venous flow was normal. However, there was a risk of the nail penetrating through the SSS or injuring other arteries, and we removed the nail directly from the intracranial view to stop bleeding from the SSS or other vessels. Fortunately, there was no bleeding, and we washed the hole created by the nail penetration and concluded the surgery. CONCLUSIONS: Our technique is useful and safe for removing large nails penetrating the head.

Fatal subarachnoid hemorrhage caused by rupture of variant anterior communicating artery: a case report and literature review.

Fatal subarachnoid hemorrhage (SAH) caused by anterior communicating artery (ACoA) rupture is a rare event in medicolegal practice. Anatomical variations of the ACoA tend to make its anatomical structure, and as a result, blood flow through it, more complicated, which may increase hemodynamic stress and cause weak spots in the affected blood vessels. Variant ACoAs are prone to rupture in the event of a blunt-force trauma. Here, we report a fatal case of SAH caused by the rupture of a variant ACoA when the victim's head was struck from behind, causing the head to rotate and the victim to fall forward onto the ground. A medicolegal autopsy revealed diffuse basal SAH and ACoA duplication. The smaller of the two variant ACoA branches had ruptured near its junction with the right anterior cerebral artery. No basal aneurysms or other fatal diseases or injuries were found. This case highlights the significance of anatomical variation in forensic pathology.

Analysis of biochemical laboratory values to determine etiology and prognosis in patients with subarachnoid hemorrhage: a clinical study.

OBJECTIVES: The aim of this study was to establish prognostic and predictive markers in patients with subarachnoid hemorrhage (SAH) using simple laboratory methods. METHODS: A retrospective examination was made of patients with SAH diagnosed secondary to isolated head trauma, isolated anterior communicating artery aneurysm rupture, and angiography-negative SAH. Age, gender, Glasgow Coma Scale (GCS) scores, and Fisher's grade scores, Glasgow Outcome Scale (GOS) scores, leukocyte count, neutrophil count, lymphocyte count, platelet count, neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio results (PLR) were evaluated. RESULTS: NLR and PLR values, which were similar in patients with spontaneous SAH, were significantly high in patients with traumatic SAH. NLR and PLR values could be 80% sensitive and 75% specific for distinguishing traumatic SAH from spontaneous SAH. Eosinophil count was lower in patients with angiography-negative SAH and patients with aneurysmal SAH than in patients with traumatic SAH. Initially measured GCS score, Fisher's grade score, eosinophil, neutrophil and lymphocyte counts could be prognostic in all patients with SAH. Moreover, it was concluded that the initially measured number of eosinophils might be directly related to patient prognosis. The eosinophil count was generally found to be high in traumatic SAH patients and it was observed that this parameter could be predictive for these patients. Lymphocyte count and NLR values could be prognostic markers in patients with angiography-negative SAH. CONCLUSION: NLR, PLR and eosinophil count values could be predictive for etiological factors (traumatic SAH or spontaneous SAH) of patients who were admitted unconscious to the emergency room with SAH detected on radiological imaging.

Central Nervous System Bleeding After a Lumbar Puncture: Still an Ongoing Complication.

BACKGROUND A lumbar puncture is a procedure performed to uncover the state of the central nervous system by analysis of the cerebrospinal fluid. It is done also to infuse medications in the subdural space. A lumbar puncture should not cause central nervous system bleeding, but this complication is still occurring in certain cases. CASE REPORT We present 2 cases where a lumbar puncture was performed in the emergency department. The first patient had severe inflammatory lower back pain and received epidural steroids through a lumbar puncture and the second case presented with the clinical picture of meningitis and a lumbar puncture was performed for diagnostic purposes. In both cases, major complications arose secondary to bleeding in the cerebrospinal fluid. The first case developed a bleeding tendency because the patient had acute renal failure and was on low molecular weight heparin. The second case had low platelet count because of myelodysplasia. Both cases bled into the subarachnoid space and subdural space resulting in compression of the cauda equine and paralysis. The bleeding eventually flowed into the posterior fossa resulting in vasospasm of the posterior circulation and infarction of the posterior cerebral arteries. CONCLUSIONS We concluded that both patients sustained complications from the lumbar puncture because of a bleeding tendency secondary to systemic illnesses and multiple drugs and their side effects. We recommend that patients' medical condition be well evaluated, and proper blood studies be performed prior to lumbar punctures to avoid major morbidities.

Traumatic subarachnoid hemorrhage related to ophthalmic artery avulsion: a case report.

We present a case of ophthalmic artery (OA) traumatic avulsion, leading to a post-traumatic subarachnoid hemorrhage (SAH) with ventricular blood invasion and hydrocephalus, mimicking an internal carotid aneurysm rupture. This is the third case of such an event reported in literature and the first without orbital fractures and optic nerve avulsion. Conservative treatment was sufficient for the avulsion, but surgery was needed for the coexisting eye luxation. Traumatic OA avulsion is a rare but possible event and should be suspected in case of basal cisterns SAH, evidence of orbital trauma and CT angiogram or angiographic absence of opacification of the OA.

Traumatic midline subarachnoid hemorrhage on initial computed tomography as a marker of severe diffuse axonal injury.

OBJECTIVEThe objective of this study was to test the hypothesis that midline (interhemispheric or perimesencephalic) traumatic subarachnoid hemorrhage (tSAH) on initial CT may implicate the same shearing mechanism that underlies severe diffuse axonal injury (DAI).METHODSThe authors enrolled 270 consecutive patients (mean age [± SD] 43 ± 23.3 years) with a history of head trauma who had undergone initial CT within 24 hours and brain MRI within 30 days. Six initial CT findings, including intraventricular hemorrhage (IVH) and tSAH, were used as candidate predictors of DAI. The presence of tSAH was determined at the cerebral convexities, sylvian fissures, sylvian vallecula, cerebellar folia, interhemispheric fissure, and perimesencephalic cisterns. Following MRI, patients were divided into negative and positive DAI groups, and were assigned to a DAI stage: 1) stage 0, negative DAI; 2) stage 1, DAI in lobar white matter or cerebellum; 3) stage 2, DAI involving the corpus callosum; and 4) stage 3, DAI involving the brainstem. Glasgow Outcome Scale-Extended (GOSE) scores were obtained in 232 patients.RESULTSOf 270 patients, 77 (28.5%) had DAI; tSAH and IVH were independently associated with DAI (p < 0.05). Of tSAH locations, midline tSAH was independently associated with both overall DAI and DAI stage 2 or 3 (severe DAI; p < 0.05). The midline tSAH on initial CT had sensitivity of 60.8%, specificity of 81.7%, and positive and negative predictive values of 43.7% and 89.9%, respectively, for severe DAI. When adjusted for admission Glasgow Coma Score, the midline tSAH independently predicted poor GOSE score at both hospital discharge and after 6 months.CONCLUSIONSMidline tSAH could implicate the same shearing mechanism that underlies severe DAI, for which midline tSAH on initial CT is a probable surrogate.

Subdural hematoma as a major determinant of short-term outcomes in traumatic brain injury.

OBJECTIVE Early radiographic findings in patients with traumatic brain injury (TBI) have been studied in hopes of better predicting injury severity and outcome. However, prior attempts have generally not considered the various types of intracranial hemorrhage in isolation and have typically not excluded patients with potentially confounding extracranial injuries. Therefore, the authors examined the associations of various radiographic findings with short-term outcome to assess the potential utility of these findings in future prognostic models. METHODS The authors retrospectively identified 1716 patients who had experienced TBI without major extracranial injuries, and categorized them into the following TBI subtypes: subdural hematoma (SDH), traumatic subarachnoid hemorrhage, intraparenchymal hemorrhage (which included intraventricular hemorrhage), and epidural hematoma. They specifically considered isolated forms of hemorrhage, in which only 1 subtype was present. RESULTS In general, the presence of an isolated SDH was more likely to result in worse outcomes than the presence of other isolated forms of traumatic intracranial hemorrhage. Discharge to home was less likely and perihospital mortality rates were generally higher in patients with SDH. These findings were not simply related to age and were not fully captured by the admission Glasgow Coma Scale (GCS) score. The presence of SDH had a much higher sensitivity for poor outcome than the presence of other TBI subtypes, and was more sensitive for these poor outcomes than having a low GCS score (3-8). CONCLUSIONS In these ways, SDH was the most important finding associated with poor outcome, and the authors show that consideration of SDH, specifically, can augment age and GCS score in classification and prognostic models for TBI.

Postmortem angiography revealing traumatic rupture of the intracranial internal carotid artery.

Diagnosis of traumatic subarachnoid hemorrhage (SAH), although relatively rare, is important in forensic medicine. It is mostly associated with rupture of the vertebrobasilar artery. Traumatic aneurysm of the intracranial part of the internal carotid artery (ICA) is also rare but has been reported in several studies. It is thought that the intracranial ICA is injured by blunt force to the head, neck, and chest. However, traumatic SAH with fatal acute course resulting from rupture of the ICA is especially uncommon: only two fatal cases without an associated aneurysm have been reported in the English-language literature. Although detecting the arterial lesion is required to make a precise diagnosis, this is sometimes impossible by macroscopic examination at autopsy or by investigation after formalin-fixation according to the position of the lesion. We report a rare case of fatal traumatic SAH associated with intracranial ICA rupture. Postmortem computed tomography angiography was useful to confirm the lesion.

A case of intrauterine lethal fetal injury after attempted suicide of the mother.

Traumatic injuries in pregnancy such as abdominal trauma, pelvic fractures and penetrating trauma are major causes of maternal and neonatal morbidity and mortality. The most common causes of trauma during pregnancy are motor vehicle accidents, falls, assaults, gunshots, and burns. Pregnancy itself has been identified as a risk factor for trauma, together with a younger age, drug use, alcohol use, and domestic violence. We report the case of a 46-year-old woman, 34 weeks pregnant, who attempted suicide by jumping from a flyover, immediately after a probably deliberate traffic collision with the guardrail. She had fractures of five lumbar vertebrae and three ribs with pulmonary contusions, but was without other injuries. Following the mother's stabilization, the fetal heart tones were detected as abnormal and the patient had an emergency caesarean section delivering a still-born male infant. Neither alcohol nor drugs were found in the mother who had been diagnosed with an unspecified episodic mood disorder. She recovered completely from her injuries. At autopsy of the newborn, a massive subarachnoid hemorrhage with deformity of the skull was found, caused by maternal blunt abdominal trauma following car accident and fall. This case is an outstanding example of fetal head trauma which occurred with no life-threatening maternal injury due to attempted suicide. It is important for clinicians and forensic pathologists to have adequate knowledge and practical experience of these cases, because pregnancy is a special risk factor for self-inflicted injuries among females, with significant adverse effects on the fetus even with minor injuries to the mother.