Search Results
Results 601 - 650 of 1238
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Stoodley M - - 2000
OBJECTIVE: Evidence indicates that vasospasm after subarachnoid hemorrhage (SAH) is caused in part by a decrease in the vasodilator nitric oxide (NO), which is produced mainly in endothelial cells. This study tested whether intracisternal injection of adenovirus-expressing endothelial NO synthase (eNOS) would decrease vasospasm in dogs. METHODS: In 12 dogs, ...
Sameshima T - - 2000
A 29-year-old male with Down's syndrome presented with severe headache and vomiting. Computed tomography demonstrated subarachnoid hemorrhage. Left carotid angiography showed severe stenosis of the middle cerebral artery 2 cm distal to its origin, as well as abnormal hyper-vascularization near the stenosis site similar to that seen in moyamoya disease. ...
Kibayashi K - - 2000
A 20-year-old male presented with traumatic basal subarachnoid hemorrhage after being involved in a fight. Antemortem clinical examinations could not exclude the possibility of rupture of abnormal blood vessels because of the absence of external injuries. Careful postmortem examination of the head and neck regions and histological examination of the ...
Cummings T J - - 2000
Patients with a history of closed head trauma and subarachnoid hemorrhage are uncommonly diagnosed with an intracranial saccular aneurysm. This study presents a group of patients in whom a pre-existing aneurysm was discovered during work-up for traumatic subarachnoid hemorrhage. Without an accurate pre-trauma clinical history, it is difficult to define ...
Schievink W I - - 2000
Pretruncal (perimesencephalic) nonaneurysmal hemorrhage is a benign form of subarachnoid hemorrhage (SAH). Angiographic changes of vasospasm are uncommon in patients with this type of hemorrhage, and if vasospasm is present, it is mild and focal. We report two patients with pretruncal nonaneurysmal SAH who developed severe and diffuse vasospasm, expanding ...
Vos P E - - 2000
Head trauma may provoke subarachnoid haemorrhage. The question sometimes arises whether in patients with trauma and subarachnoid haemorrhage the latter is of traumatic or aneurysmal origin. We present a 49-year-old patient who fell from a truck, struck his head and was unconscious immediately. On the brain computed tomography (CT) scan ...
Sayama T - - 2000
We studied the incidence and timing of hyponatremia (Na < 135 mEq l-1) after subarachnoid hemorrhage (SAH) with special reference to ruptured anterior communicating artery (A-com) aneurysms. Hunt and Kosnik (HK) grading, symptomatic vasospasm in A-com aneurysm, and hydrocephalus were analyzed for connections to hyponatremia in 55 patients with ruptured ...
Kim I - - 2000
OBJECTIVE: Cerebral vasospasm is a potentially fatal consequence of aneurysmal subarachnoid hemorrhage and influences the prognosis of the patient. The purpose of this study was to evaluate the status of thin (actin) and thick (myosin) filament regulation of smooth muscle contraction in the double-subarachnoid hemorrhage canine model of cerebral vasospasm ...
Urschel J D - - 2000
Major hemorrhage is an uncommon complication of mediastinoscopy. Although there is a paucity of published data on the management of this problem, sternotomy and arterial repair is usually considered the treatment of choice. Two major hemorrhagic complications (1 definite and 1 possible pulmonary artery tear) occurred in a series of ...
Tsurushima H - - 2000
Complications associated with intraarterial papaverine infusion occurred in two patients treated for vasospasm due to subarachnoid hemorrhage (SAH). A 42-year-old male with an anterior communicating artery aneurysm underwent craniotomy and aneurysm clipping. Five days after the SAH occurred, angiography demonstrated moderate vasospasm in spite of hypervolemic-hypertensive therapy. During papaverine infusion ...
Ali A - - 2000
We describe three patients who developed severe pulmonary hemorrhage following administration of tirofiban (one patient) and abciximab (two patients). Pulmonary hemorrhage associated with abciximab use has been described, but to the best of our knowledge there has been no previous reports of this complication with tirofiban. Cathet. Cardiovasc. Intervent. 49:181-184, ...
Caner H - - 2000
Mexiletine is a class Ib drug that is widely used to treat ventricular arrhythmias. This compound is mainly known as a sodium channel blocker, but studies have demonstrated that it can also activate ATP-sensitive K+ channels and block Ca2+ channels. Recent in vitro data from experiments on liposomes indicate that ...
Patlolla A - - 2000
Cerebral vasospasm is the major factor of mortality and morbidity in the patients who have an aneurysmal subarachnoid hemorrhage (SAH). Erythrocyte lysate (hemolysate), oxyhemoglobin (OxyHb), and bloody cerebrospinal fluid (CSF) are the causative agents for vasospasm. However, the signal transduction pathways for the action of these spasmogens are not clear. ...
Lagares A - - 1999
BACKGROUND: Intracranial hemorrhage is the most dreaded risk of thrombolytic therapy for acute myocardial infarction because of the high mortality and disability rates associated with this complication. Brain structural lesions may predispose a patient to bleeding. To date, aneurysm rupture has not been described as a complication of such therapy. ...
Ezura M - - 1999
Summary: This study focused on our experiences in intraaneurysmal embolization for ruptured aneurysm in the acute stage. Clinical materials of this study consist of 37 patients who were treated with intra-aneurysmal GDC embolization within 72 hours after the onset of subarachnoid hemorrhage from December 1995 to July 1998. Patients with ...
Ohkuma H - - 1999
This study was conducted to investigate whether the intraparenchymal and extraparenchymal portions of small cerebral arteries show different histopathological changes after subarachnoid hemorrhage (SAH). SAH was produced in dogs by a two-hemorrhage method, and the dogs were perfusion-fixed at 7 and 14 days after SAH. Normal untreated animals were also ...
Erly W K - - 1999
We describe two cases of disseminated coccidioidomycosis that were complicated by fatal subarachnoid hemorrhage. In the first case, a left middle cerebral artery aneurysm and long-segment vasculitis occurred. In the second case, MR imaging revealed an enlarging coccidioidal granuloma at the tip of the basilar artery, and the artery subsequently ...
Nakahara T - - 1999
Spontaneous basilar dissecting aneurysms secondary to subarachnoid hemorrhage are rare, usually presenting with ischemia rather than a subarachnoid hemorrhage (SAH). A 63-year-old man who had SAH repeatedly from a ruptured basilar dissecting aneurysm was treated with endovascular occlusion of the unilateral vertebral artery. Postoperative angiograms 1 month after the procedure ...
Levy D M - - 1999
Subarachnoid haemorrhage is a leading 'indirect' cause of maternal death in the UK. We describe the case of a 43-year-old woman who presented with headache, photophobia and neck stiffness of sudden onset at 32 weeks' gestation. Cerebral computed tomography demonstrated subarachnoid blood in the cisterns around the midbrain, and oral ...
Newell D W - - 1999
Endovascular treatment of cerebral vasospasm induced by subarachnoid hemorrhage has become a useful therapy. The two main treatments that have been used are balloon angioplasty and intra-arterial papaverine infusion. Both treatments have been shown to reverse subarachnoid hemorrhage-induced vascular spasm, increase cerebral blood flow and improve delayed ischemic neurologic deficits ...
Elidemir O - - 1999
Recently, Stachybotrys atra, a toxigenic fungus, has been implicated as a potential cause of pulmonary hemorrhage/hemosiderosis in infants living in water-damaged homes. Although epidemiologic evidence supports this association, neither the organism nor its toxic products has ever been recovered from humans. We report the first case in which Stachybotrys was ...
Zubkov A Y - - 1999
The pathogenesis of cerebral vasospasm that follows aneurysmal subarachnoid hemorrhage (SAH) is poorly understood. Multiple methods have been used to clarify the mechanism of spasmogen-induced vasospasm, however, each method has its own limitations. Cultured cells lose their phenotype and inter-cellular interactions, and animal models are expensive and can be used ...
Yamaguchi M - - 1999
A 70-year-old female developed delayed ischemic neurological deficits at 35 days after subarachnoid hemorrhage (Hunt and Kosnik grade III, Fisher group 4) caused by a ruptured aneurysm of the left middle cerebral artery. Angiography indicated late-onset cerebral vasospasm probably due to the mass effect of a large hematoma remaining in ...
Okada Y - - 1999
OBJECTIVE: Transcranial Doppler (TCD) findings for evaluation of the severity of vasospasm (VSP) in patients with ruptured aneurysmal subarachnoid hemorrhage are controversial. To clarify these TCD findings, intra-arterial digital subtraction angiography was used to simultaneously investigate the angiographic features of cerebral vessels and the cerebral circulation time (CCT). METHODS: Fifty ...
Victorio-Navarra S - - 1999
Popliteal arterial hemorrhage is a rare but potentially devastating complication of markedly deformed joints. This report describes a 57-year-old Filipino man with chronic renal failure and destructive arthropathy caused by crystal deposition and /or a neuropathic joint, who presented with the complication of acute popliteal arterial hemorrhage. The case illustrates ...
Oyoshi T - - 1999
Epidemiological studies of the relationship between climate and the onset of aneurysmal subarachnoid hemorrhage (SAH) have been reported in the temperate and subarctic latitudes. However, the relationship between the incidence of aneurysmal SAH and the climatic variations in the subtropical region remains uncertain. Epidemiological analysis requires study of an extremely ...
Hernández-Palazón J - - 1999
The management of patients with chronic renal failure (CRF) undergoing cerebral aneurysm surgery has been documented on only a few occasions. We report a 58-year-old man with CRF and subarachnoid hemorrhage (SAH) due to aneurysm rupture. We describe the patient's perioperative anesthetic management, discussing the current methods for maintaining an ...
Naff NJ - - 1999
Intraventricular hemorrhage (IVH) in adults usually occurs in the setting of aneurysmal subarachnoid hemorrhage or hypertension-related intracerebral hemorrhage. Thus, the underlying cause of IVH is apparent from history and radiographic findings. If the underlying cause of IVH is not apparent, additional studies, including cerebral angiography, magnetic resonance imaging, and toxicology ...
Sure U - - 1999
Traumatic posterior circulation aneurysms in the absence of fractures and penetrating wounds are extremely uncommon, especially in children. To our knowledge this is the first traumatic posterior inferior cerebellar artery(PICA) aneurysm reported that cannot be related to a skull fracture or a trauma caused by the edge of a rigid ...
Muizelaar J P - - 1999
OBJECT: Recent advances in neuroradiology have made it possible to dilate vasospastic human cerebral arteries after aneurysmal subarachnoid hemorrhage (SAH), but the time window is short and the success rate for reversal of delayed ischemic neurological deficits (DINDs) varies between 31% and 77%. In a dog model of vasospasm, transluminal ...
Suzuki H - - 1999
Delayed cerebral vasospasm after aneurysmal subarachnoid hemorrhage (SAH) causes cerebral ischemia and infarction. To date, the pathogenesis and gene expression associated with vasospasm remain poorly understood. The present study used fluorescent differential display to identify differentially expressed genes in a rat model of SAH. By using quantitative RT-PCR, we found ...
Ooe K - - 1999
Severe pulmonary hemorrhage was observed in two patients who died of serious group A streptococcal infections. These two patients initially presented with fever and sore throat. This was followed by sudden onset of septicemia caused by the bacteria and by the subsequent development of severe pulmonary hemorrhage. Hemoptysis, cyanosis, and ...
Vora YY - - 1999
OBJECTIVE: The purpose of this study was to determine the correlation between transcranial Doppler (TCD) velocities and angiographic vasospasm after aneurysmal subarachnoid hemorrhage. METHODS: In the first part of this study, patients were retrospectively reviewed to correlate middle cerebral artery absolute blood flow velocities with angiographic vasospasm. In the second ...
Kwan A L - - 1999
Cerebral vasospasm associated with aneurysmal subarachnoid hemorrhage (SAH) remains a major complication in patients suffering from SAH. Regulation of membrane potential of arterial smooth muscle through activation or inhibition of potassium (K+) channel activity provides an important mechanism to dilate or constrict arteries. The present study examined the effect of ...
Perona F - - 1999
A 71-year-old woman presented with a life-threatening thyroid hemorrhage after US-guided chemical parathyroidectomy. The diagnosis was made by angiography followed by immediate embolization of a pseudoaneurysm of the left superior thyroid artery. Embolization controlled the hemorrhage, obviating the need for surgery. The patient made a full recovery with no evidence ...
Flemming KD - - 1999
All patients who present with subarachnoid hemorrhage should be admitted to the intensive care unit for close neurologic and cardiorespiratory monitoring. Neurosurgical consultation should be obtained if external ventricular drain placement, arteriography, or surgical planning are considered. Seizure prophylaxis, antihypertensive treatment for mean arterial blood pressure greater than 130 mm ...
Velthuis B K - - 1999
BACKGROUND AND PURPOSE: It is important to recognize a perimesencephalic pattern of hemorrhage in patients with subarachnoid hemorrhage (SAH), because in 95% of these patients the cause is nonaneurysmal and the prognosis is excellent. The purpose of this study was to investigate whether CT angiography can accurately exclude vertebrobasilar aneurysms ...
Krapf H - - 1999
During antibiotic therapy, a 56-year-old man with a Streptococcus bovis endocarditis developed an infarction of the right middle cerebral artery (MCA). Thirty hours after stroke onset, cranial computed tomography controls demonstrated a secondary subarachnoid hemorrhage, marked in the cistern of the right MCA. The latent period, cerebrospinal fluid analysis, angiographic ...
Yoshimoto Y - - 1999
BACKGROUND: To test the hypothesis that early surgery prevents vasospasm, a prospective analysis used strictly selected cases of anterior communicating artery aneurysms with symmetric distribution of subarachnoid hemorrhage. METHODS: Seven patients underwent early surgery (9-29 hours after ictus) through a standard pterional approach. Subarachnoid blood clots surrounding the ipsilateral major ...
Davis G M - - 1999
Traumatic arterial vasospasm with no surrounding anatomic damage is a rare finding. Delayed presentation of arterial vasospasm several days from the inciting event is also rare. However, when the diagnosis of arterial vasospasm is considered, evaluation and treatment must be initiated promptly to avoid prolonged ischemia to the extremity. We ...
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 ...
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