Quantification of intramyocardial hemorrhage volume using magnetic resonance imaging with three-dimensional T1-weighted sequence in patients with ischemia-reperfusion injury: a semi-automated image processing technique

AbstractAlthough intramyocardial hemorrhage (IMH) is a poor prognostic factor caused by ischemia reperfusion injury, little evidence is available regarding the association between IMH volume and biomarkers. In the present study, we measured IMH volume using three-dimensional (3D) T1-weighted magnetic resonance imaging (T1-MRI) and investigated its association with biomarkers. Moreover, the accuracy of semi-automatic measurement of IMH volume was validated. We retrospectively enrolled 33 consecutive patients (mean age 67  ± 11 years) who underwent cardiac MRI after reperfusion therapy for acute myocardial infarction. IMH was observed in 4 patients (12.1%). Receiver operating characteristics (ROC) analysis of creatine kinase (CK) and CK-muscle/brain (CK-MB) tests for detecting IMH were performed. IMH volume mea sured using semi-automatic methods by a 2 standard deviation (SD) threshold was compared to manual measurements using the Spearman’s correlation coefficient (ρ) and Bland –Altman analyses. ROC analysis revealed optimal cutoff values of CK: 2460 IU/l and CK-MB: 231 IU/l (area under the curve: 0.95 and 0.91; sensitivity: 86% and 79%; specificity: 100% for both). IMH volume with the 2SD threshold correlated with that of the manual measurement [5.84 g (3.30 to 9.00)  g vs. 8.07 g (5.37 to 9.33);ρ: 0.85,p 
Source: The International Journal of Cardiovascular Imaging - Category: Radiology Source Type: research

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Publication date: Available online 7 January 2020Source: The Lancet Diabetes &EndocrinologyAuthor(s): Hertzel C Gerstein, Robert Hart, Helen M Colhoun, Rafael Diaz, Mark Lakshmanan, Fady T Botros, Jeffrey Probstfield, Matthew C Riddle, Lars Rydén, Charles Messan Atisso, Leanne Dyal, Stephanie Hall, Alvaro Avezum, Jan Basile, Ignacio Conget, William C Cushman, Nicolae Hancu, Markolf Hanefeld, Petr Jansky, Matyas KeltaiSummaryBackgroundCardiovascular outcome trials have suggested that glucagon-like peptide 1 (GLP-1) receptor agonists might reduce strokes. We analysed the effect of dulaglutide on stroke within the ...
Source: The Lancet Diabetes and Endocrinology - Category: Endocrinology Source Type: research
Conclusion: Some cases with CCI treated with IV-tPA and endovascular intervention were reported, but the treatment strategy should be still discussed multidisciplinary. Especially, the administration of antithrombotic drugs for CCI should be carefully performed because fatal hemorrhage such as cardiac tamponade can occur. PMID: 31893142 [PubMed]
Source: Surgical Neurology International - Category: Neurosurgery Tags: Surg Neurol Int Source Type: research
Conclusion Earlobe creases were not independently associated with cardiovascular events among Japanese hemodialysis patients, suggesting that these marks are simply indicative of advanced age. PMID: 31839659 [PubMed - as supplied by publisher]
Source: Internal Medicine - Category: Internal Medicine Tags: Intern Med Source Type: research
This study shows that CA are released from periventricular and subpial regions to the cerebrospinal fluid and are present in the cervical lymph nodes, into which cerebrospinal fluid drains through the meningeal lymphatic system. We also show that CA can be phagocytosed by macrophages. We conclude that CA can act as containers that remove waste products from the brain and may be involved in a mechanism that cleans the brain. Moreover, we postulate that CA may contribute in some autoimmune brain diseases, exporting brain substances that interact with the immune system, and hypothesize that CA may contain brain markers that m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
AbstractThe best strategy in atrial fibrillation (AF) after  >  12 months after an acute coronary syndrome or in patients with chronic coronary syndrome without an indication for interventional revascularization remains unclear. European guidelines generally recommend therapy with oral anticoagulation (OAC) alone, whereas North American guidelines advise com bination therapy consisting of OAC plus antiplatelet therapy in some patients. We performed a meta-analysis of available trials comparing these treatment strategies. The primary endpoint was major adverse cardiac events (MACE), secondary endp...
Source: Journal of Thrombosis and Thrombolysis - Category: Hematology Source Type: research
Introduction: Intraplaque hemorrhage (IPH) is an important feature of plaque vulnerability. Patients with a history of transient ischemic attack or stroke are treated with platelet aggregation inhibitors to prevent secondary myocardial infarction or ischemic stroke. Although antiplatelet medication is effective in reduction of clot formation, it also has adverse effects. It has therefore been hypothesized that platelet aggregation inhibitors could also initiate the onset or progression of IPH. A histopathological study on 154 carotid endarterectomy plaques found that preoperative antiplatelet therapy was associated with an...
Source: European Journal of Vascular and Endovascular Surgery - Category: Surgery Authors: Source Type: research
Introduction: Size and morphology of carotid atherosclerotic plaques can be quantified by ultrasound (US) imaging. Carotid artery plaque size and gray-scale median (GSM) have been identified as risk markers for both cardiovascular events and stroke ADDIN EN.CITE ADDIN EN.CITE.DATA (1, 2). Unstable plaques have a thin fibrotic cap and a lipid or hemorrhagic core ADDIN EN.CITE ADDIN EN.CITE.DATA (3-6). A higher amount of lipid and hemorrhage have been observed in echolucent carotid plaques presenting as lower GSM compared to echogenic carotid plaques containing fibrotic tissue and calcification ADDIN EN.CITE ADDIN EN.CITE.DATA (7-10).
Source: European Journal of Vascular and Endovascular Surgery - Category: Surgery Authors: Source Type: research
ConclusionAspirin reduced the risks of MACCE and cancer without increasing the bleeding risk in elderly Koreans with hypertension, T2DM, or dyslipidemia. Moreover, the benefits of the long-term use of aspirin in reducing the risks of MACCE were demonstrated. However, the decision of using aspirin for primary prevention must be carefully made on an individual basis, while estimating the benefit –risk balance of aspirin.
Source: Drugs and Aging - Category: Geriatrics Source Type: research
The number and complexity of procedures performed by gastroenterologists are increasing in the United States.1,2 In addition, the number and complexity of antithrombotic agents are growing.3 These concurrent trends may lead to confusion among providers on the  appropriate management of these drugs during endoscopy. The skilled clinician must balance the risks of thrombosis, including myocardial infarction and stroke, against the risks of procedure-related hemorrhage, which can be potentially fatal.
Source: Gastrointestinal Endoscopy - Category: Gastroenterology Authors: Tags: Original article Source Type: research
ConclusionsThe meta-analysis shows that the DOACs had greater effectiveness and safety compared to warfarin in real-world practice for stroke prevention, among Asian patients with NVAF.
Source: Cardiovascular Drugs and Therapy - Category: Cardiology Source Type: research
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