Search Results
Results 251 - 300 of 778
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Kobayashi Kengo - - 2003
A 16-year-old female with a family history of coronary artery disease was referred to hospital because of recurrent chest oppression unrelated to exertion. Although a selective coronary angiogram showed no atherosclerotic lesions, coronary spasm was provoked by acetylcholine in the left coronary artery, accompanied by chest pain and depression of ...
Xiang Dingcheng - - 2003
OBJECTIVE: To investigate the role of coronary artery spasm in the etiology of chest pain lacking significant coronary stenosis and to identify the clinical risk factors related to coronary artery spasm. METHODS: Two hundred and seventy five patients with chest pain, but without significant coronary artery stenosis underwent the intracoronary ...
Choi S S - - 2003
We observed four transient episodes of marked ST-segment elevation in a 58-yr-old man with no history of coronary artery disease undergoing resection of a metastatic neck mass under general anaesthesia. Elevations of the ST segment were abrupt, with no change in arterial pressure or heart rate, and resolved spontaneously. When ...
Kiemeneij Ferdinand - - 2003
Radial artery spasm is a frequent complication of the transradial approach for coronary angiography and angioplasty. Recently, we have been able to quantify spasm using the automatic pullback device. The objective of this study was to assess the efficacy of an intra-arterial vasodilating cocktail in reducing the incidence and severity ...
Farmakis Dimitrios - - 2003
The coexistence of a pseudoxanthoma elasticum (PXE)-like syndrome in beta-thalassemia and other hemoglobinopathies is a recently established clinical entity that has been observed with a significant frequency and related to some severe, even life-threatening complications. We present here a thalassemia intermedia patient who developed unstable angina in a setting of ...
Holmes David R DR - - 2002
Patients with coronary artery disease have a variety of treatment options available to them. These include medications to control anginal episodes and, when appropriate, revascularization interventions in the form of coronary artery bypass graft and angioplasty. Despite advances in the treatment of angina, a substantial number of patients continue to ...
Ashby Dale T - - 2002
Treatment of coronary artery spasm can be difficult; up to 25% of patients continue to have episodes of chest pain despite maximal therapy with calcium antagonists and nitrates. We describe the case of a 42-year-old female with severe coronary artery spasm associated with a moderately severe atherosclerotic stenosis of the ...
Schillinger Martin - - 2002
BACKGROUND: Pulmonary congestion is associated with poor outcome in patients with acute coronary syndromes. In consecutive patients presenting with acute unexplained chest pain to a primary care facility, the prognostic impact of pulmonary congestion is indeterminate. Therefore, we assessed the predictive value of clinical signs of pulmonary congestion in patients ...
Asai Tohru - - 2002
A new method to skeletonize and harvest the right gastroepiploic artery using an ultrasonic scalpel is presented. The technique is simple and safe, and it causes less bleeding. It is possible not only to harvest the artery faster, but to obtain large spasm-free arterial conduits for coronary artery bypass grafting.
Hoffmeister Hans Martin - - 2002
AIM: 18F-fluorodeoxyglucose (18F-FDG)-positron emission tomography (PET) provides information about myocardial glucose metabolism to diagnose myocardial viability. Additional information about the functional status is necessary. Comparison of tomographic metabolic PET with data from other imaging techniques is always hampered by some transfer uncertainty and scatter. We wanted to evaluate a new ...
Galassi Alfredo R - - 2002
Vasoconstriction of collateral vessels has been previously reported as a mechanism of spontaneous transient ischemic episodes and after the administration of ergonovine. This case report describes a 47-year-old woman with mixed angina and a right coronary artery occlusion supplied by a collateral system related to the left anterior descending artery. ...
Ben-Ami Ronen - - 2002
Sialadenitis is an uncommon complication of intravenous administration of iodinated contrast medium. We present two cases of iodide-induced sialadenitis following coronary angiography. Clinical features and clues to differentiation from suppurative sialadenitis are discussed. The mechanism for aseptic iodide-induced sialadenitis remains unclear, but prognosis with conservative treatment is apparently good. Sialadenitis ...
Sharma Gyarsi Lal - - 2002
The gastroepiploic artery has been successfully used as an arterial conduit in selected patients undergoing CABG with acceptable immediate and long-term results. Myocardial ischemia may occur during the follow-up period as a result of spasm, occlusion, or stenosis at the anastomosis site. Because of tortuosity and in order to avoid ...
Chia Karin K M - - 2002
Hypokinetic myocardium is presumed to be reversibly dysfunctional. However, hypokinetic segments do not necessarily improve after revascularization since their outcome can be influenced by tethering effects of adjacent myocardium. To assess whether hypokinetic segments improve following revascularization, 24 patients underwent resting and dobutamine stress echocardiography (DSE), with a total of ...
Buffon Antonino - - 2002
BACKGROUND: Inflammation within vulnerable coronary plaques may cause unstable angina by promoting rupture and erosion. In unstable angina, activated leukocytes may be found in peripheral and coronary-sinus blood, but it is unclear whether they are selectively activated in the vascular bed of the culprit stenosis. METHODS: We measured the content ...
Bin Jian-Ping - - 2002
BACKGROUND: We hypothesized that increased myocardial oxygen demand resulting from hypotension and reflex tachycardia unmasking a reduced endocardial myocardial blood flow (MBF) reserve is the mechanism of dipyridamole-induced regional dysfunction in chronic coronary artery disease. METHODS AND RESULTS: Ameroid constrictors were placed around the proximal coronary arteries and their major ...
Saito Shigeru - - 2002
Radial artery spasm is one of the major problems during transradial coronary intervention (TRI). The sheath introducer with hydrophilic coating may reduce the incidence of spasm and reduce the difficulty in removing it from the radial artery under the situation of spasm artery spasm. After we compared the friction resistance ...
Sueda Shozo - - 2002
OBJECTIVES: The purpose of this study was to clarify clinical and angiographical characteristics of acetylcholine (ACh)-induced spasm in the right and left coronary artery. METHODS AND RESULTS: We performed 557 consecutive procedures of spasm provocation tests of ACh from January 1991 to December 2000 in patients without significant stenosis. ACh ...
Masumoto Akihiro - - 2002
BACKGROUND: Increased activity of Rho-kinase causes hypercontraction of vascular smooth muscle and has been implicated as playing a pathogenetic role in divergent cardiovascular diseases such as coronary artery spasm. We examined whether an intracoronary infusion of fasudil, a selective Rho-kinase inhibitor, would attenuate coronary vasoconstrictor responses to acetylcholine (ACh) in ...
Mariak Zenon - - 2002
OBJECT: The value of transcranial Doppler ultrasonography for the detection of middle cerebral artery (MCA) spasm has been asserted. None of the published studies, however, has adequately scrutinized the overall diagnostic accuracy of this procedure. There are only sporadic reports concerning the utility of transcranial color Doppler (TCCD) ultrasonography, although ...
Timurkaynak Timur - - 2002
Adenosine is a powerful direct coronary vasodilator with a very short half-life that has been shown to be effective in avoiding and reversing no reflow. We report an immediate successful recanalization of an occluded major side branch after stenting with acute intracoronary adenosine administration. The beneficial effect of adenosine may ...
Fukuda Yukihiro - - 2002
Reduced bioavailability of tetrahydrobiopterin (BH4), an essential cofactor for nitric oxide (NO) synthase, and the resulting decrease in NO in the coronary circulation may be involved in the pathogenesis of coronary spasm. The present study investigated the effects of BH4 on the vascular response to acetylcholine (ACh) in 28 patients ...
Maejima Y - - 2001
A 64-year-old man was admitted to hospital under the suspicion of unstable angina pectoris. Coronary angiography showed that he has a single coronary artery originating from the right coronary artery (RCA) without significant fixed stenosis. Acetylcholine was superselectively infused into the left main coronary artery (LMCA), and confirmed the coronary ...
Kiemeneij F - - 2001
Current evaluation of radial artery spasm (RAS), a frequent finding during the transradial approach for coronary angiography and angioplasty (TRA), is subjective. A quantitative measure of RAS will help in evaluation and comparison of management strategies. The objectives of the study were to assess the feasibility and safety of using ...
Gach O - - 2001
Meningitis due to Neisseria meningitidis occurred in a young man. On admission, he was in septic shock and the electrocardiogram revealed convex upwards ST-segment elevation in inferior and lateral leads. Rapid and complete normalisation of the ECG was observed and the patient had a favourable evolution with intensive therapy. The ...
Iu P P - - 2001
An MR arteriogram obtained in a patient with migraine headaches during prodrome showed features of carotid dissection. A repeated study conducted within minutes demonstrated complete patency. Vascular spasm was proposed to be the cause. Migraine occurs in more than 10% of the population. The possibility of misdiagnosing a vascular spasm ...
Sato K - - 2001
BACKGROUND: A rare case of fusiform vertebral artery aneurysm causing hemifacial spasm was successfully treated by intravascular embolization. CASE DESCRIPTION: A 53-year-old man presented with left hemifacial spasm persisting for 2 years. No other clinical symptoms were observed. Vertebral angiography revealed a fusiform aneurysm of the left vertebral artery, and ...
Ziada K M - - 2001
During percutaneous coronary intervention of the left anterior descending coronary artery, a lumen narrowing was observed proximal to the stent just deployed. Intravascular ultrasound showed a hematoma localized outside the trilaminar wall structure in absence of a dissection flap or evidence of compression of the lumen. The luminal narrowing resolved ...
Terazawa M - - 2001
The pathogenesis of unstable angina pectoris (UAP) following percutaneous transluminal coronary angioplasty (PTCA) or directional coronary atherectomy (DCA) has not been adequately investigated, so the present study aimed to determine whether thrombi are present in restenotic lesions. The study group comprised 14 patients (16 arterial branches) with angina pectoris in ...
Fujita Y - - 2001
We report a case of anaphylactic reaction occurring during general anesthesia that may have been accompanied by a coronary artery spasm. The present case and a review of the medical literature suggest that coronary artery spasm is evoked by common vasoactive mediators with anaphylactic reactions. Coronary artery spasm should be ...
Johansen A H - - 2001
INTRODUCTION: The patho-physiological cause of angina pectoris is myocardial ischaemia, which can be objectified by myocardial perfusion imaging (MPI). METHODOLOGY: MPI was undertaken prior to coronary angiography (CAG) in 86 randomly selected patients with known or suspected stable angina pectoris. RESULTS: Among 78 adequately stressed patients, MPI was normal in ...
Dipp M A - - 2001
OBJECTIVES: There is an increasing use of arterial conduits for coronary artery bypass grafting, and the radial artery is commonly used as the third graft. The major drawback of the radial artery is its proclivity to spasm. Both papaverine and phenoxybenzamine have been recommended as topical vasodilators in clinical practice. ...
Hale J M - - 2001
We present a case of a 31-year-old female patient who developed a supraventricular tachycardia and haemodynamic instability secondary to the use of vaginal prostaglandin E(2)gel for induction of labour. This complication occurred despite the patient's young age, absence of pre-existing ischaemia or coronary artery spasm, and the use of vaginal, ...
Sarwal A - - 2001
Geometric representation and measurements of localized lumen stenosis of coronary arteries are important considerations in the diagnosis of cardiovascular diseases. This discrete narrowing of the arteries typically impairs blood flow in regions of the heart, and can be present along the entire length of the artery. Three-dimensional (3-D) reconstruction of ...
de Nigris F - - 2001
This study tested the hypothesis that c-Myc activation, an oxidation-sensitive transcription factor, and its binding partner Max occurs in coronary arteries of hypercholesterolemic (HC) pigs, and can be attenuated by chronic antioxidant intervention. Coronary arteries were isolated from normal, HC pigs, or HC supplemented with antioxidant vitamins (HC + vitamins). ...
Tamaki N - - 2001
We developed and tested a new, angled rigid endoscope as a tool for performing continuous visual monitoring during microsurgery. The shaft of the scope is angled 110 degrees at its midportion using a prism. We used the scope continuously in 30 cases including 15 pituitary tumours, 7 brain tumours, 7 ...
Koh K K - - 2001
A 55-year-old man came to the hospital because of chest pain, mostly occurring in the early morning at rest. He had to get isosorbide dinitrate intravenously with continuous infusion. Following ergonovine provocation test, total occlusion of mid-left anterior descending artery was identified with marked elevation of ST segment as exercise ...
Tousoulis D - - 2000
OBJECTIVE: To assess the relation between coronary vasomotor effects of N(G)-monomethyl-L-arginine (LNMMA) administration and coronary stenosis morphology, length, and severity in patients with stable angina. DESIGN: In 28 patients (24 male, four female) with coronary artery disease and chronic stable angina, intracoronary normal saline and 4 micromol/min LNMMA were infused ...
Slachta C A - - 2000
Chronic cardiac allograft rejection presents pathologically as graft arteriosclerosis (GA) characterized by recipient T cell and monocyte infiltration. To determine whether oligoclonal T cells are present in coronary arteries of cardiac allografts from patients with GA, we conducted sequencing analysis of beta-chain TCR transcripts from these explanted coronary arteries using ...
Hong M K - - 2000
BACKGROUND: There are few data about the intravascular ultrasound (IVUS) findings in patients with vasospastic angina, especially regarding patterns of vascular remodeling. METHODS AND RESULTS: Coronary spasm was documented by angiography and electrocardiographic evidence of ischemia in 36 patients after administration of ergonovine (cumulative doses up to 350 microg). After ...
Arquilla B - - 2000
We present a case of limb ischemia in a young man. For acute alcohol withdrawal, this patient was given chlordiazepoxide (Librium) through an angiocatheter inadvertently placed into a brachial arterial line. This caused severe spasm of the brachial artery and its branches. These findings were confirmed by angiography. Successful treatment ...
Paull D E - - 2000
Thallium (Tl) 201 and technetium (Tc) 99m tetrofosmin single-photon emission CT are routinely used in the evaluation of coronary artery disease. Mediastinal tumors demonstrate Tl 201 and Tc 99m tetrofosmin uptake. We report a 56-year-old man who developed chest pain after a previously successful angioplasty and stent of the left ...
Jain D - - 2000
We describe a rare and unreported complication during rotational atherectomy of a heavily calcified lesion in the left circumflex artery in a 79-year-old man. The Teflon sheath housing the drive shaft fractured, most probably due to overtightening of the Y-adapter hemostatic valve. As a result, there was intense spasm leading ...
Horigome H - - 2000
A 13 year old boy is described with hypereosinophilia associated with Kimura's disease, who showed repeated life threatening syncopal attacks during daily activities or at rest. Coronary arteriography demonstrated small aneurysms with irregular vessel walls of both coronary arteries, and the absence of organic stenotic lesions. Infusion of a minimal ...
Chia B L - - 2000
In a study of 92 patients presenting with inferior wall acute myocardial infarction, the infarct-related artery was the right coronary artery in 72 patients (78%) and the left circumflex artery in 20 (22%). An ST II/III ratio of 1 or an isoelectric ST in lead I are sensitive and specific ...
Miyao Y - - 2000
OBJECTIVES: The purpose of this study was to evaluate the extent of atherosclerotic changes in angiographically normal coronary arteries using intravascular ultrasound (IVUS) technique in patients with coronary spastic angina. BACKGROUND: Nitric oxide activity was shown to be decreased in coronary arteries of patients with coronary spastic angina (CSA). Decrease ...
Shaheen J - - 2000
Angina pectoris usually occurs in patients with significant coronary artery disease during periods of increased coronary demand such as increased heart rate. Bradycardia is a rare and unusal cause of angina pectoris that should be considered during the evaluation of patients with agnia. This paper reports three cases of bradycardia-induced ...
Anderson G B - - 2000
BACKGROUND AND PURPOSE: Digital subtraction angiography (DSA) is the standard of reference for detecting cerebral vasospasm after subarachnoid hemorrhage (SAH). CT angiography (CTA) is a relatively recent method for depicting the intracranial arterial vasculature. The purpose of this study was to compare CTA and DSA in the detection and quantification ...
Konstantinov I E - - 2000
Robert H. Goetz performed the first successful clinical coronary artery bypass operation on May 2, 1960. He used a nonsuture technique to connect the right internal thoracic artery to the coronary artery by means of a modified Payr's cannula made of tantalum. The patency of the anastomosis was demonstrated angiographically ...
Chan C L - - 2000
to describe an intraoperative technique using a Fogarty balloon to treat arterial spasm following vascular bypass and endarterectomy. prospective case control study. twenty-two patients following femorodistal bypass surgery and one patient following carotid endarterectomy, with arterial spasm in the distal run-off on completion angiography, were treated with Fogarty balloon dilatation. ...
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