laser/infarction

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Laser thrombolysis using long pulse frequency-doubled Nd:YAG lasers.

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OBJECTIVE Laser thrombolysis is a means for clearing blood clots in occluded arteries. Many researchers have studied the mechanisms of clot ablation, and research clinicians have used the technique to treat myocardial infarction with a number of different laser systems. Specifically, a 1-microsec

Transcranial laser therapy and infarct volume.

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OBJECTIVE Two randomized trials suggested that transcranial laser therapy (TLT) may benefit patients with acute ischemic stroke, although efficacy has not been confirmed. Supportive proof of concept could be demonstrated if TLT reduces the volume of cortical infarction. METHODS The NeuroThera

Holmium laser angioplasty.

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The investigational solid-state, pulsed-wave, mid-infrared (2.1 microns) holmium:YAG laser can be applied for plaque ablation and thrombus dissolution. A multicentre study reports 87% laser success and 94% final procedural success. It has established the safety and efficacy of this laser in

Low-level laser irradiation alters cardiac cytokine expression following acute myocardial infarction: a potential mechanism for laser therapy.

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OBJECTIVE Low-level laser irradiation (LLLI) has the potential of exerting cardioprotective effect following myocardial infarction (MI). The authors hypothesized that LLLI could influence the expression of cardiac cytokines and contribute to the reversal of ventricular remodeling. BACKGROUND LLLI

Intravascular laser therapy of acute myocardial infarction.

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The efficacy of a new method of treatment, endovascular blood irradiation with He-Ne laser, developed by the authors, was studied in 295 patients with primary acute transmural myocardial infarction (MI). Twenty-four-hour Holter monitoring findings before and after laser irradiation suggested the

Laser angioplasty and laser-induced thrombolysis in revascularization of anomalous coronary arteries.

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Acute coronary syndromes such as unstable angina and myocardial infarction are attributed to a pathophysiologic process that involves rupture of atherosclerotic plaque and subsequent thrombosis. Percutaneous intervention of anomalous coronary arteries in patients who present with acute coronary

Peripheral laser angioplasty with pulsed dye laser and ball-tipped optical fibres.

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Laser angioplasty with the pulsed dye laser and integral ball-tipped optical fibres was used for primary treatment of occlusive femoropopliteal vascular disease in 26 limbs of 24 patients, all of whom warranted operative intervention. 19 had "critical ischaemia", 8 had pedal ulceration, and 4 had

Effectiveness of holmium laser-assisted coronary angioplasty. The Holmium Laser Coronary Registry.

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The efficacy of holmium laser-assisted angioplasty was studied in 365 narrowings in 331 consecutive patients with coronary artery disease. Clinical indications for study were unstable angina pectoris in 140 patients (42%), stable angina in 136 patients (41%), postmyocardial infarction angina in 35

[Laser angioplasty and recanalization].

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Percutaneous transluminal coronary balloon angioplasty (PTCA) still is the most frequently applied interventional technique for treatment of coronary artery disease. Plastic deformation of the obstructive plaque with creation of splits, intimal tears and dissections is the main mechanism of PTCA for

Endobronchial Nd:YAG laser surgery.

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Thirty-six malignant and four benign endotracheal and endobronchial lesions were treated using Nd:YAG laser through flexible bronchoscope from November 1985 to July 1987 at the University Hospital in Louisville, Kentucky. Progressive dyspnea and hemoptysis were primary indications for the

Laser treatment for stroke.

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Low-level laser therapy is an irradiation technique that has the ability to induce biological processes using photon energy. There are studies showing proliferation and angiogenesis after irradiation in skeletal muscle post-myocardial infarction tissue cells. Most evidence of efficacy is based on

Excimer laser coronary angioplasty in acute myocardial infarction.

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We evaluated the short-term results of percutaneous excimer laser angioplasty in acute myocardial infarction. Of the 18 patients studied, 2 were female and 16 male with a mean age of 56.6 +/- 12.1 years. Thrombolysis in myocardial infarction grades 0, 1, and 2 flow was observed in 10, 5, and 3

[Experiences with laser therapy in acute myocardial infarct].

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Our clinical and instrumental investigations showed that invasive laser therapy has a multiple therapeutic effect. Acting favourably on principal pathogenetic mechanisms of acute myocardial infarction, it decreases the pain syndrome, normalize electrical instability of the heart, limits myocardial

Application of excimer laser angioplasty in acute myocardial infarction.

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OBJECTIVE Patients presenting with acute myocardial infarction who fail to respond to standard therapy with thrombolytics or have contraindications for their use oftentimes need revascularization with a mechanical device for removal of an occlusive coronary thrombus and its underlying

Extent of myocardial tissue damage during transmyocardial laser revascularization with the CO2 Heart Laser.

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OBJECTIVE Transmyocardial laser revascularization (TMR) is the only surgical treatment for patients with severe diffuse coronary artery disease, who are not candidates for bypass grafting or percutaneous angioplasty. However, vaporization of tissue during the creation of channels leads to a certain

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