A case of acute myocardial infarction treated with a new thrombectomy system

Nishida, Takahiro; Nakamura, Masato; Tsunoda, Taro; Iijima, Raisuke; Shiba, Masanori; Wada, Masamichi; Nakajima, Rintaro; Kitagawa, Yoko; Yajima, Suguru; Wakayama, Megumi; Shibuya, Kazutoshi; Yamaguchi, Tetsu

doi:10.1002/ccd.10039

Cited by 6 publications

(2 citation statements)

References 63 publications

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“…Various challenging modalities for intracoronary thrombus in an atherosclerotic lesion have been described, such as the percutaneous Fogarty maneuver, 5) thrombus aspiration before balloon angioplasty and/or stenting, 6,7) and the use of a mechanical protection device for distal embolization. 8) However, little information is available about the treatment of acute myocardial infarction due to coronary embolism.…”

Section: Discussionmentioning

confidence: 99%

Three Cases of Acute Myocardial Infarction Due to Coronary Embolism: Treatment Using a Thrombus Aspiration Device

et al. 2004

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SUMMARYIn this report, we describe three patients with acute myocardial infarction due to coronary embolism who were successfully treated using a thrombus aspiration device. Thrombus aspiration is shown to be a feasible and effective strategy for the treatment of acute coronary embolism. (Jpn Heart J 2004; 45: 861-866) Key words: Myocardial infarction, Coronary embolism, Thrombus aspiration, Atrial fibrillation RUPTURE of atherosclerotic plaques and subsequent thrombus formation are known to be a major cause of acute myocardial infarction. Coronary embolism is believed to be a cause of acute myocardial infarction when emergent coronary angiography shows perfectly normal coronary trees, except for the finding of coronary artery occlusion. However, it is difficult to distinguish the origin of an occluded thrombus, in other words, whether it arose from inside or outside the coronary artery. Recently, the removal of a coronary thrombus has become possible using a coronary thrombectomy catheter. Histological examination of the thrombus verified the correct diagnosis of coronary embolism. Here, we report three cases with coronary embolism treated using coronary aspiration devices. CASE REPORTCase 1: An 88-year-old woman with a history of paroxysmal atrial fibrillation (Af) was transferred to the coronary care unit of our hospital due to consciousness disturbance. A 12-lead electrocardiogram (ECG) showed Af with a ventricular rate of 32 beats per minute, ST elevation in leads II, III and aV F , and reciprocal ST depression in leads V 1 -V 4 which are consistent with an acute myocardial inFrom the

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Section: Discussionmentioning

confidence: 99%

Three Cases of Acute Myocardial Infarction Due to Coronary Embolism: Treatment Using a Thrombus Aspiration Device

et al. 2004

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“…At present, clot-removal devices are under development. Some devices are based on a vacuum system [21][22][23]; others use ultrasonic vibration [24][25][26][27]. However, devices with complex systems are often too stiff to insert into the cerebral vasculature.…”

Section: Introductionmentioning

confidence: 99%

Preclinical testing of a new clot-retrieving wire device using polyvinyl alcohol hydrogel vascular models

et al. 2006

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Introduction Cerebral embolism is the principal cause of cerebral infarction. Recently, mechanical embolectomy has been proposed as an effective method. We performed a preclinical evaluation of a new mechanical clot-retrieving wire. Methods This clot-retrieving wire consisted of three nitinol loops at the tip of a microguidewire. These three loops could be collapsed into a 0.018-inch wire compatible microcatheter. Each loop was 8 mm long and 3.5 mm wide. For simulation, polyvinyl alcohol (PVA) vascular anatomical models of the human carotid (eight models) and vertebrobasilar (three models) circulation were constructed. A pulsatile flow circulation system was used. Embolic clots were produced using pig blood plasma. The microcatheter and the microguidewire were advanced beyond the clot. The wire was then exchanged for the retrieving wire. The microcatheter was then pulled slightly back to open the loops. The clot was then caught by withdrawal of the system. Once caught, the clot was retrieved to the guiding catheter tip. We investigated the following points: ease of device deployment, clot capture ability, clot removal against blood flow and removal of the clot out of the introducer system. Results A total of 104 procedures were performed in 11 PVA models and evaluated. The drop rate was 19%. We succeeded in partial and total recanalization in 51.0% of the procedures (53/104) within 30 minutes. Conclusion This new clot-retrieving wire could be useful for mechanical clot extraction in stroke.

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Fate of unprotected side branches as related to embolic complications during stent implantation for acute coronary syndromes using a distal protection procedure

Iijima¹,

Tsunoda²,

Shiba³

et al. 2005

The American Journal of Cardiology

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A case of acute myocardial infarction treated with a new thrombectomy system

Cited by 6 publications

References 63 publications

Three Cases of Acute Myocardial Infarction Due to Coronary Embolism: Treatment Using a Thrombus Aspiration Device

Three Cases of Acute Myocardial Infarction Due to Coronary Embolism: Treatment Using a Thrombus Aspiration Device

Preclinical testing of a new clot-retrieving wire device using polyvinyl alcohol hydrogel vascular models

Fate of unprotected side branches as related to embolic complications during stent implantation for acute coronary syndromes using a distal protection procedure

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