Comparison of 0.9-mm and 1.4-mm catheters in excimer laser coronary angioplasty for acute myocardial infarction

This study showed that efficacy of 0.9 and 1.4 mm excimer laser catheter was equivalent in ELCA for AMI patients. If o ne takes into account lesion crossability, debulking effects, and the stunned platelets phenomenon, the 0.9 mm excimer laser catheter is sufficient for ELCA in AMI patients.
Source: Lasers in Medical Science - Category: Laser Surgery Source Type: research

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While primary percutaneous coronary intervention (PPCI) in ST-elevation myocardial infarction (STEMI) restores normal epicardial flow, limitations remain, including persistently impaired myocardial perfusion which in part is due to thrombotic embolization.1 This has been associated with worsened myocardial salvage2 and increased mortality.3 –5 Roughly one-quarter of patients will have impaired microvascular flow following reperfusion in STEMI.2 Moreover, distal embolization of intracoronary (IC) thrombus during mechanical intervention can lead to further infarct expansion.
Source: The American Journal of Cardiology - Category: Cardiology Authors: Source Type: research
CONCLUSION: Acute myocardial infarction and hypertrophic cardiomyopathy patients who were obese exhibited worse long-term outcomes than those without obesity. PMID: 31674878 [PubMed - as supplied by publisher]
Source: Perfusion - Category: Cardiovascular & Thoracic Surgery Authors: Tags: Perfusion Source Type: research
Conclusion Compared with clopidogrel, ticagrelor improves myocardial perfusion and left ventricular ejection fraction, and reduces the incidence of MACE for STEMI patients undergoing pPCI, with no significant increase in major bleeding.
Source: Coronary Artery Disease - Category: Cardiology Tags: Myocardial Infarction Source Type: research
Abstract Background and objectives: No-reflow (NR) phenomenon is defined as insufficient myocardial perfusion in coronary circulation in the absence of angiographic evidence of mechanical obstruction. The primary mechanisms of the NR occurrence are thought to be high platelet activity and thrombus burden. Soluble CD40 ligand (sCD40L), which is released into the plasma following platelet activation, accelerates the inflammatory process and causes further platelet activation. The aim of our study is to investigate the relationship between the NR phenomenon and sCD40L level in patients with ST-elevation myocardial in...
Source: Medicina (Kaunas) - Category: Universities & Medical Training Authors: Tags: Medicina (Kaunas) Source Type: research
Ischemia/reperfusion (I/R) injury is associated with primary percutaneous coronary intervention (PPCI). The current study was performed to compare the effect of tirofiban and recombinant human pro-urokinase (rh-proUK) on the improvement of coronary slow blood after PPCI. Sixty-five ST elevation myocardial infarction (STEMI) patients treated with rh-proUK and an equal number treated with tirofiban after PPCI were employed in the current study. The clinicopathological information regarding the biochemical parameters, thrombolysis in myocardial infarction (TIMI) grade, hemodynamics parameters, thrombus core (TS), sum-STR, le...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Observational Study Source Type: research
CONCLUSION:  Cangrelor produces more potent P2Y12 inhibition at the time of first coronary balloon inflation time compared with ticagrelor. Despite this enhanced P2Y12 inhibition, coronary microvascular function and final infarct size did not differ between groups. PMID: 31129911 [PubMed - as supplied by publisher]
Source: Thrombosis and Haemostasis - Category: Hematology Authors: Tags: Thromb Haemost Source Type: research
Giuseppe Ristagno1*, Francesca Fumagalli1, Barbara Bottazzi2, Alberto Mantovani2,3,4, Davide Olivari1, Deborah Novelli1 and Roberto Latini1 1Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy 2Humanitas Clinical and Research Center-IRCCS, Milan, Italy 3Humanitas University, Milan, Italy 4The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom The long pentraxin PTX3 is a member of the pentraxin family produced locally by stromal and myeloid cells in response to proinflammatory signals and microbial moieties. The p...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusions: With the current increased burden of acute coronary syndromes and the lack of immediate primary PCI facilities for all patients with STEMI, facilitated angioplasty seems a feasible therapeutic option. Another benefit of facilitated angioplasty may be represented by a major contribution of thrombolytic therapy in re-establishing microvascular myocardial blood flow.
Source: American Journal of Therapeutics - Category: Drugs & Pharmacology Tags: Systematic Reviews Source Type: research
Cardiologists are grappling with at least  half a dozen time windows  in the management of STEMI. (It can be combinations of any of the following :Symptom – DAPT Loading – Door – Needle /Balloon-Sheath, wire crossing etc ) Time windows are Important in choosing the right (or no)modality of re-perfusion . Though superiority of  primary PCI  is thought to be established in academic community , it  may not be in real world. Published studies that suggest pPCI is superior to lysis at any time window  still lack good evidence. Why is this long drawn confusion&n...
Source: Dr.S.Venkatesan MD - Category: Cardiology Authors: Tags: cath lab tips and tricks PCI PTCA Hardware Primary -PCI STEMI STEMI -Managment STEMI-Primary PCI Thrombolysis how to estimate the age of thrombus in stemi acs soft vs hard thrombus in stemi thrombus hardening time thrombus organising t Source Type: blogs
Authors: Wang K, Zhang J, Zhang N, Shen Y, Wang L, Gu R, Xu B, Ji Y Abstract High thrombus burden induced slow-flow and no-reflow during primary percutaneous coronary intervention (PCI) and is associated with a poor prognosis. We aimed to investigate whether a combined thrombus burden reduction therapy during primary PCI, could improve microcirculation and enhance cardiac function in the long-term.Anterior wall STEMI patients with high thrombus burden were randomly assigned to receive a combined thrombus burden reduction therapy or thrombus aspiration alone. The primary end points included the percentage of patient...
Source: International Heart Journal - Category: Cardiology Tags: Int Heart J Source Type: research
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