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Results 651 - 700 of 1248
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Okumura Y - - 1999
A 77-year-old female presented with a rare intrameatal aneurysm manifesting as sudden onset of headache, hearing loss, tinnitus, and vertigo associated with subarachnoid hemorrhage. Meatal loop trapping was performed. After surgery, the patient's functions recovered almost completely, probably because of the preservation of the 7th and 8th cranial nerves and ...
Yamaura K - - 1999
PURPOSE: To present a case of massive retroperitoneal hemorrhage during cardiopulmonary bypass (CPB) which was detected using transesophageal echocardiography (TEE). CLINICAL FEATURE: A 50-yr-old man suffering from severe mitral regurgitation (MR) was admitted for mitral valvuloplasty. After the beginning of CPB, the volume in the reservoir was noticed to be ...
Asano T - - 1999
1. Approximately one-third of the morbidity and mortality due to aneurysmal subarachnoid hemorrhage (SAH) is caused by delayed ischemic neurological deficit (DIND) due to cerebral vasospasm. 2. Compared to prolonged arterial constriction in other parts of the body, cerebral vasospasm is characterized by its long duration and refractoriness to vasodilators ...
Zubkov A Y - - 1999
BACKGROUND: This is the first report on the use of intra-arterial papaverine and percutaneous transluminal angioplasty in two patients with severe, symptomatic cerebral vasospasm who suffered ruptured arteriovenous malformations (AVMs). CASE DESCRIPTIONS: The source of hemorrhage was a venous aneurysm in the first case and a pedicular aneurysm of the ...
Firlik K S - - 1999
BACKGROUND: Intra-arterial papaverine (IAP) has been described as a treatment for cerebral vasospasm refractory to standard therapy. METHODS: We report a series of 15 consecutive patients with aneurysmal subarachnoid hemorrhage in which IAP was employed for the treatment of symptomatic vasospasm. All patients exhibited delayed ischemic neurologic deficits, focal cerebral ...
Shibata S - - 1999
The efficacy of intracisternal methylprednisolone was examined on lipid peroxidation in a canine subarachnoid haemorrhage (SAH) model. The concentration of lipid peroxides increased significantly in the cerebrospinal fluid (CSF) supernatant on Day 4, and also in the arterial wall on Day 7. Intracisternal administration of methylprednisolone reduced markedly the products ...
Kino T - - 1999
Carotid rete mirabile (CRM) consists of arterial channels between the internal and external carotid arteries in some lower mammals. It is a very rare pathological condition in humans. We report two patients who presented with clinical signs of subarachnoid haemorrhage (SAH). Their sudden-onset SAH was thought to have been due ...
Weir B - - 1999
Cerebral vasospasm is a gradual onset and prolonged constriction of the cerebral arteries in the subarachnoid space after subarachnoid hemorrhage. The principal cause is the surrounding blood clot. The significance of vasospasm is that flow through the constricted arteries may be reduced sufficiently to cause cerebral infarction. Subarachnoid blood clot ...
Mason B A - - 1998
Postpartum hemorrhage remains a major cause of morbidity and mortality for the obstetric patient. A timely, stepwise approach to management can reduce the negative impact of this complication. Improvements in pharmacotherapy and surgical techniques have also improved outcome. Uterine artery embolization is an especially promising approach to the management of ...
Nakashima S - - 1998
Fasudil hydrochloride is a new type of intracellular calcium antagonist, different from the calcium entry blockers that are commonly employed for clinical use. Since September 1995, the combination of fasudil hydrochloride and ozagrel sodium, an inhibitor of thromboxane A2 synthesis, has been used to treat 60 patients at risk of ...
Bevan J A JA Totman Laboratory for Cerebrovascular Research, Department of Pharmacology, University of Vermont, College of Medicine, Burlington, Vermont, - - 1998
Animal studies of cerebral arteries 2 to 3 days after experimental subarachnoid hemorrhage (SAH) provide evidence of arterial change such as hyperresponsiveness to contractile agonists. There is evidence that small arteries, as well as those large enough to be seen on angiography, may be involved. To directly test these possibilities, ...
Hori K - - 1998
Septic adrenal hemorrhage is classically caused by meningococcemia. An autopsied case is presented of a 45-year-old man with adrenal hemorrhage due to Klebsiella oxytoca bacteremia following placement of a central venous catheter. He died 5 hours after developing disseminated intravascular coagulation (DIC). The bacterial entry site may have been the ...
Hodgson T J - - 1998
We present a case of subarachnoid hemorrhage attributed to rupture of an aneurysm 18 months after endovascular occlusion. The aneurysm was diagnosed after the patient had a seizure; however, there was no evidence of subarachnoid hemorrhage. Angiography at 6 months revealed a totally occluded aneurysm. This case illustrates that the ...
Sobey C G - - 1998
1. Subarachnoid haemorrhage (SAH) is a unique disorder and a major clinical problem that most commonly occurs when an aneurysm in a cerebral artery ruptures, leading to bleeding and clot formation. Subarachnoid haemorrhage results in death or severe disability of 50-70% of victims and is the cause of up to ...
Horowitz M - - 1998
Preoperative selective particulate embolization of arteriovenous malformations can make subsequent surgical resection of such lesions safer for the patient and easier for the surgeon. Nevertheless, embolization carries intrinsic risks, which include subarachnoid hemorrhage. We report two cases of subarachnoid hemorrhage during particulate embolization that we think was attributable to catheter ...
Muizelaar J P - - 1998
Recent advances in neuroradiology have made it possible to dilate human cerebral arteries that show vasospasm following aneurysmal subarachnoid hemorrhage (SAH), but the time window is short and the success rate for reversal of delayed ischemic neurological deficit (DIND) varies between 31% and 77%. In a canine model of vasospasm, ...
Dangor A A - - 1998
Patients with subarachnoid hemorrhage from ruptured cerebral aneurysms frequently have systemic manifestations including hypovolemia and fluid and electrolyte disturbances in addition to neurologic symptoms. Anesthetic management therefore begins with proper preoperative evaluation and optimization. Anesthetic induction and maintenance are partly dependent on the patient's condition and seek to optimize cerebral ...
Sun H H Department of Neurosurgery, Mie University School of Medicine, Mie, - - 1998
Subarachnoid hemorrhage (SAH) impairs both contraction and relaxation response in cerebral arteries. We tested the hypothesis that cerebral vasospasm might be ATP-independent contraction, such as latch state, and protein synthesis might be substantially downregulated due to ATP consumption after long-lasting contraction. Chronic cerebral vasospasm was induced in the canine 2-hemorrhage ...
Fultz P J - - 1998
OBJECTIVE: The purpose of our study was to evaluate chest radiographic features of nontraumatic mediastinal hemorrhage occurring after extrapericardial thoracic aorta rupture. MATERIALS AND METHODS: Twenty-seven consecutive chest radiographs obtained at admission of patients with hemorrhage from ruptured thoracic aorta aneurysms, aortic dissections, or penetrating aortic ulcers were randomized with ...
Soustiel J F - - 1998
OBJECTIVE: The primary objective of this study was to assess the incidence of vertebrobasilar vasospasm after subarachnoid hemorrhage (SAH) by means of transcranial Doppler ultrasonography and to evaluate the clinical significance of this phenomenon. The secondary objective was to analyze the different factors influencing the development, the severity, and the ...
Le Roux P D - - 1998
Rupture of cerebral aneurysms is a complex and devastating pathophysiologic event. The successful management of aneurysm rupture requires a dedicated multidisciplinary team. This article reviews pathophysiology; clinical grading that can be used to predict outcome and guide therapy; factors that may affect outcome such as rebleeding, poor clinical grade, intracerebral ...
Oei P L - - 1998
Angiographic embolization is a well documented technique that has been utilized for controlling pelvic hemorrhage. A case is described of a 41-year-old para 3 woman with intractable bleeding following a cesarean hysterectomy for postpartum hemorrhage due to uterine atony and coagulopathy. On angiogram, no bleeding was seen from the uterine ...
Okada Y - - 1998
A 62-year-old male complaining of unilateral visual disturbance and pain in the involved eye had a small mass at the right orbital apex which was identified as an Aspergillus granuloma by transcranial biopsy. One month later, the patient became comatose because of fatal subarachnoid hemorrhage due to a newly developed ...
Todo H - - 1998
The authors investigated the changes and the potential of cyclic nucleotide-dependent signal transduction, which induces smooth muscle relaxation, in the basilar artery with severe vasospasm in dogs with double experimental subarachnoid hemorrhage (SAH) to explore at which biochemical level the arterial dilative capability was impaired. The amount of cyclic adenosine ...
Marshman L A - - 1998
Sodium nitroprusside (SNP) is commonly used for controlled systemic hypotension during aneurysm surgery after acute subarachnoid hemorrhage (SAH). Few experimental studies have assessed cerebrovascular responsiveness to SNP acutely after a representative SAH (i.e., following arterial rupture within the subarachnoid space). Instead, most studies have focused on delayed reactivity after slow ...
Berdoz D - - 1998
The clinical and radiological data of 52 patients with subarachnoid haemorrhage (SAH) and a negative panangiography were analysed with an average follow-up period of 3.8 years. Of these 52 patients, only one (1.9%) was subsequently found to have an aneurysm. Second angiography proved to be inconclusive in all 24 cases ...
Kalinowski E A - - 1998
A patient developed retroperitoneal hemorrhage after cardiac catheterization, initially thought to be a complication of the puncture. Diagnostic evaluation revealed the source to be spontaneous bleeding from a lumber artery, which was successfully embolized. Spontaneous hemorrhage is a recognized complication of anticoagulation therapy and must be considered in the differential ...
Kachhara R - - 1998
A 50-year-old female presented with rare fenestration of the proximal anterior cerebral artery (A1 segment). This rare congenital anomaly was associated with an aneurysm at the proximal end of A1 fenestration causing subarachnoid hemorrhage, and aplasia of the contralateral A1 segment. Surgical treatment to clip the aneurysm resolved her symptoms. ...
Khanlou H - - 1998
We describe two cases of diffuse alveolar hemorrhage and development of ARDS in patients who underwent percutaneous transluminal coronary angioplasty (PTCA) with stenting in whom Abciximab (ReoPro) was used in combination with other agents interfering with the hemostatic mechanism. The development of pulmonary infiltrates, associated with a fall in hemoglobin ...
Osuka K - - 1998
BACKGROUND AND PURPOSE: Inducible cyclooxygenase (COX-2) has been found to play a pathological role in cerebral insult. We investigated the expression of COX-2 in the basilar artery after experimental subarachnoid hemorrhage (SAH). METHODS: In a canine "two-hemorrhage" model of SAH, the basilar arteries were obtained on day 2 after a ...
Shen W C - - 1998
The occurrence of a subdural hematoma caused by the rupture of an intracranial aneurysm is rare. In our case, the patient is a 43-year-old woman who suffered from sudden onset of severe headache. Computed tomographic (CT) scan disclosed a subdural hematoma associated with subarachnoid hemorrhage. CT angiography and digital subtraction ...
Lam S M - - 1998
A generalized allergic reaction to or anaphylaxis from honeybee sting may involve the skin with erythema, puritus, urticaria, or angioedema; the respiratory tract with laryngeal edema, and brochospasm; the cardiovascular system with myocardial depression, hypotension, and shock; and the gastrointestinal system with nausea, vomiting, and incontinence. Acute pulmonary hemorrhage following ...
Duong D H - - 1998
PURPOSE: The purpose of this study was to define the influence of feeding mean arterial pressure (FMAP) in conjunction with other morphological or clinical risk factors in determining the probability of hemorrhagic presentation in patients with cerebral arteriovenous malformations (AVMs). METHODS: Clinical and angiographic data from 340 patients with cerebral ...
Nighoghossian N - - 1998
The occurrence of intracerebral hemorrhage during an acute attack of migraine remains questionable. A normotensive migrainous woman experienced multiple intracerebral hemorrhages. No drug abuse was recorded, but bleeding occurred after the use of several antimigrainous drugs. Angiography revealed severe vasospasm of both anterior cerebral arteries. Subsequent brain MRI and MRI ...
Bax N M - - 1998
Huge sacrococcygeal teratomas in the newborn can cause significant morbidity and even death due to cardiac failure, hemorrhage, or both. Surgical removal is the treatment of choice, but can indicate these events. Ligation of the median sacral artery, which always supplies the tumor, prior to its removal has been advocated, ...
Barksdale P A - - 1998
OBJECTIVE: To examine the current clinical problem of life-threatening hemorrhage during sacrospinous vaginal vault suspension, define a management solution, and validate current anatomic knowledge of the area involved. METHODS: Ten cadaveric female pelves were dissected from a posterior gluteal approach and from an abdominal approach. The vascularity of the region ...
Mizutani T - - 1998
BACKGROUND: It has been assumed that dissecting aneurysms presenting with subarachnoid hemorrhage (SAH) are extremely rare in the carotid circulation. This may be partially attributed to the difficulty in their diagnosis. The documented angiographic findings include arterial narrowing or occlusion. The purpose of the present study is to investigate the ...
Mori K - - 1998
Spontaneous dissecting aneurysms limited to the basilar artery are rare. We describe two patients who presented to our institution with different clinical problems, one with brain stem infarction and the other with subarachnoid hemorrhage. We describe the clinical and imaging features in these patients, their treatment, and outcome. We also ...
Zhang J - - 1998
Subarachnoid hemorrhage (SAH) resulting from the rupture of a cerebral aneurysm represents one major cause of stroke. SAH may be followed by a spontaneous severe contraction of major cerebral arteries, a condition referred to as cerebral vasospasm. Vasospasm may result in brain ischemia or actual tissue death. This constrictive vascular ...
Tommasino C - - 1998
Cerebral vasospasm following aneurysmal subarachnoid hemorrhage is one of the most important causes of cerebral ischemia, and is the leading cause of death and disability after aneurysmal rupture. The optimal treatment of vasospasm awaits development of agents for blocking or inactivating spasmogenic substances, or blocking arterial smooth muscle contraction. Rheological ...
Rabb C H - - 1998
OBJECTIVE AND IMPORTANCE: Two patients with vertebrobasilar dolichoectasia sustained massive fatal subarachnoid hemorrhage from rupture of the basilar artery wall. Hemorrhage from this entity is not widely known to occur during its natural history and may be exacerbated by systemic anticoagulation. CLINICAL PRESENTATION: Two patients presented with ischemic events of ...
Cuevas P - - 1998
BACKGROUND: In animal models of subarachnoid hemorrhage (SAH), basilar artery spasm has been described. Since fibroblast growth factors (FGFs) dilate rat basilar artery in vivo, we tested whether systemic administration of acidic fibroblast growth factor (aFGF) can reverse the basilar artery spasm following rat SAH. METHODS: SAH was mimicked by ...
Han D H - - 1998
Sixteen patients with the diagnosis of vertebral or basilar artery dissection who were admitted at the Seoul National University Hospital from 1972 to 1996 are described. During the same period, we encountered 76 patients with posterior circulation aneurysms, so the vertebrobasilar artery dissection was 21% of posterior circulation aneurysms. The ...
Yasui T - - 1998
OBJECTIVE AND IMPORTANCE: We present the case of a patient with bilateral dissecting aneurysms of the vertebral arteries resulting in subarachnoid hemorrhage. CLINICAL PRESENTATION: A 44-year-old man suffered a sudden onset of severe occipital headache and nausea and then dysphasia caused by subarachnoid hemorrhage. A computed tomographic scan demonstrated right ...
Urbach H - - 1998
This study was designed to assess the necessity for a second angiogram study in patients in whom initial angiography after primary subarachnoid haemorrhage (SAH) was negative. During a 12-year period, 122 of 694 patients (17.5%) had negative initial angiograms. CT, available for 98 patients, showed a preponderance of subarachnoid blood ...
Milburn J M - - 1998
OBJECT: This study was conducted to determine if there is a change in intracranial arterial diameters after papaverine infusion for vasospasm and to determine whether the change occurs in proximal, intermediate, and distal arteries. METHODS: The authors measured arterial diameters retrospectively in all patients who received intraarterial papaverine for treatment ...
Hirai S - - 1998
A retrospective study was conducted to determine the angioarchitecture related to hemorrhage in patients with cerebral arteriovenous malformations (AVMs), who underwent conservative treatment and long-term follow-up. The average observation period was 9.3 years, and the annual bleeding rate was estimated at 3.6%. In all cases angiographic findings were reviewed in ...
Liu M F - - 1998
Pulmonary hemorrhage is a rare, but serious manifestation of systemic lupus erythematosus (SLE). Herein, we report 13 cases of severe pulmonary hemorrhage in SLE. Hemoptysis was present in 11 patients. All thirteen patients had active nephritis and were in the stage of nephrotic syndrome. A majority of the patients had ...
Sarrafzadeh A S - - 1998
Continuous monitoring of cerebral metabolism would be desirable for early detection of vasospasm in SAH patients. Bedside-microdialysis, a new technique for on-line monitoring of cerebral metabolism, may reflect changes seen in cerebral vasospasm diagnosed by transcranial Doppler sonography (TCD). This report represents the first case of combined TCD monitoring and ...
Szabo S - - 1997
BACKGROUND AND PURPOSE: Vasospasm in aneurysmal subarachnoid hemorrhage results in proliferative vasculopathy. Systemic hypertension also causes vascular hypertrophy. Both of these histological changes can lead to rigidity of the cerebrovascular system, reducing its autoregulatory capacity. METHODS: Blood flow velocity (BFV) in the middle cerebral artery at rest and cerebrovascular reserve ...
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