Possible Causes for myocardial ischemia Acute Coronary Syndrome ECG Signs of Myocardial Ischemia Ischemia occurs when there is a mismatch between myocardial O 2 supply and demand and can occur with either decreased O 2 supply or increased [nursingcenter.com] Cardiac enzymes especially troponin, CK-MB/CK ratio is important in assessing the NSTEMI versus myocardial ischemia without tissue destruction. [ncbi.nlm.nih.gov] The early release mechanism of H-FABP following myocardial ischemia (i.e. detectable within 30 minutes), means that it is a highly effective biomarker in the diagnosis and [h-fabp.com] Coronary Atherosclerosis For studies in which myocardial ischemia was not a requirement for enrollment, authors provided data for only those patients with ischemia determined by stress testing prior [ncbi.nlm.nih.gov] Postmortem evaluation of IHD remains a challenge because of possible non-specific autopsy finding in some autopsy cases, especially in early myocardial ischemia. [ncbi.nlm.nih.gov] Our attention should be focused on the microvasculature with resultant myocardial ischemia and on the myocardial cell. [onlinejacc.org] Angina Pectoris Medical management approaches to both the treatment and prevention of symptomatic myocardial ischemia are summarized. [ncbi.nlm.nih.gov] All of them had persistent angina episodes on top of optimal medical therapy and evidence of significant inducible myocardial ischemia and no further revascularization options [ncbi.nlm.nih.gov] Angina pectoris is a common disabling disorder and a clinical syndrome, caused by myocardial ischemia; an imbalance between myocardial oxygen supply and myocardial oxygen [ncbi.nlm.nih.gov] Posterior Myocardial Infarction In myocardial ischemia rhythm and conduction disturbances are often present. [books.google.com] New electrocardiographic criteria for posterior wall acute myocardial ischemia validated by a percutaneous transluminal coronary angioplasty model of acute myocardial infarction [ncbi.nlm.nih.gov] myocardial ischemia. [go.gale.com] Myocardial Infarction […] stress-induced myocardial ischemia [40]. [dx.doi.org] We aimed to examine the association between depressive symptoms and mental stress-induced myocardial ischemia in young survivors of an MI. [ncbi.nlm.nih.gov] […] patients with exercise-induced myocardial ischemia. [ncbi.nlm.nih.gov] Hypertensive Crisis CGRP and peptides released from cardiac C fibers have a beneficial effect in myocardial ischemia and reperfusion. [ncbi.nlm.nih.gov] ischemia, infarction, aortic dissection, pulmonary edema, and renal deterioration, eclampsia or microangiopathic hemolytic anemia Etiologic factors Pre-existing chronic HTN [medical-dictionary.thefreedictionary.com] ischemia/infarction, renal failure, aortic dissection, stage 3 or 4 hypertensive retinopathy Treatment Organ-targeted therapy with CCBs, Lobetalol, loop diuretics, nitroglycerin [medical-dictionary.thefreedictionary.com] Acute Myocardial Infarction ischemia in the context of acute myocardial infarction and should be managed according to clinical practice guidelines. [ncbi.nlm.nih.gov] Differential diagnosis of acute myocardial infarction Arm pain Myocardial ischemia, cervical/thoracic vertebral pain, thoracic outlet syndrome Epigastric pain Myocardial ischemia [medical-dictionary.thefreedictionary.com] CONCLUSIONS New diagnosed RBBB and right axis deviation is uncommon and could be a useful clue to evaluate myocardial ischemia in AMI cases. [ncbi.nlm.nih.gov] Diabetic Autonomic Neuropathy ischemia/infarction, orthostatic hypotension, exercise intolerance, perioperative instability, sudden death; 2) respiratory system: reduced ventilatory drive to hypercapnia [ncbi.nlm.nih.gov] […] of those patients with silent myocardial ischemia; 2) there was only a trend of higher risk of major cardiac events in the diabetic patients with silent myocardial ischemia [intechopen.com] […] and the pooled prevalence rate risk for silent myocardial ischemia was 1.96 [ 14 ]. [journals.plos.org] Unstable Angina METHODS: Study includes 127 filtered serum samples from myocardial ischemia in unstable angina patients (UA; n 65) and healthy controls (HC; n 62). [ncbi.nlm.nih.gov] OBJECTIVE: Increased myocardial glucose metabolism occurs with the onset of myocardial ischemia and may persist even after the restoration of blood flow, termed as 'ischemic [ncbi.nlm.nih.gov] The authors review the possible mechanisms involved in the pathogenesis of myocardial ischemia during thyrotoxicosis. [ncbi.nlm.nih.gov] Fabry Disease This mirror-image pattern of uptakes suggested myocardial ischemia at the apical and lateral walls. [circ.ahajournals.org] Myocardial ischemia in FD is due to endothelial dysfunction of coronary arteries and also to the increased oxygen demand of hypertrophied myocardium, being another contributor [escardio.org] Myocardial ischemia is the result of various pathophysiological changes, but atherosclerosis is not the main one. [journals.sagepub.com] Anterior Myocardial Infarction But early intervention should be considered in the presence of ongoing myocardial ischemia. [ncbi.nlm.nih.gov] OBJECTIVE: To investigate the prognostic value of CCL5 and CCL18 in patients with acute myocardial ischemia. [ncbi.nlm.nih.gov] OBJECTIVE: The combination of electrical phenomena and remote myocardial ischemia is the pathophysiological mechanism of ST segment changes in inferior leads in acute anterior [ncbi.nlm.nih.gov] Subclavian Steal Syndrome Stress induced myocardial ischemia on echocardiography was demonstrated. [ncbi.nlm.nih.gov] A total of 35 (94.6%) patients were discharged with a complete remission of myocardial ischemia. [ncbi.nlm.nih.gov] Proximal stenosis in the left subclavian artery may result in recurrent myocardial ischemia in patients with a patent left internal mammary artery (LIMA), due to coronary [ncbi.nlm.nih.gov] Variant Angina Pectoris Abstract The present study investigates the prognostic significance of silent myocardial ischemia in variant angina. [ncbi.nlm.nih.gov] Thus, coronary constriction can provoke myocardial ischemia not only in patients with variant angina but also in some patients with exertional angina. [ncbi.nlm.nih.gov] It is likely that the reperfusion following myocardial ischemia was responsible for the ventricular fibrillation while the ST-segment returned to the baseline. [ncbi.nlm.nih.gov] Apical Myocardial Infarction Myocardial ischemia, also called cardiac ischemia, reduces the heart muscle's ability to pump blood. [mayoclinic.org] Another possible mechanism is myocardial ischemia due to microvascular spasm. [onlinejacc.org] Myocardial ischemia might also cause serious abnormal heart rhythms. Treatment for myocardial ischemia involves improving blood flow to the heart muscle. [mayoclinic.org] Hypertensive Heart Disease […] may lead to severe myocardial ischemia. [cardiovascularultrasound.biomedcentral.com] ischemia, specifically if small vessels disease is present d) technique of choice for diagnosis of renovascular, aortic tree/branches lesions and quantification of aortic [ncbi.nlm.nih.gov] Selected studies were divided into those addressing coronary artery disease or myocardial ischemia and those addressing nonischemic cardiomyopathy and its sequelae. [ncbi.nlm.nih.gov] Coronary Artery Embolism It manifests as acute myocardial ischemia or infarction, causing instability of the cardiac rhythm, which may be fatal. [ncbi.nlm.nih.gov] ischemia, myocardial infarction, and sudden cardiac death. [journals.lww.com] It is theoretically conceivable that myocardial infarction may occur whenever there is severe myocardial ischemia, even in the absence of a mechanical [jamanetwork.com] Kounis Syndrome "Alternative causes of myocardial ischemia in women: An update on spontaneous coronary artery dissection, vasospastic angina and coronary microvascular dysfunction". [en.wikipedia.org] We report three cases of acute myocardial ischemia, which fulfill the definition for KS. [hindawi.com] It could aggravate the myocardial ischemia and cause life-threatening arrhythmias as happened in this case. [journals.lww.com] Autonomic Neuropathy ischemia. [ncbi.nlm.nih.gov] Patients with CAN often experience incidence of asymptomatic (silent) ischemia, myocardial infarction with a decreased likelihood of survival after myocardial infarction. [autonomicdysfunction.com] Silent myocardial ischemia/cardiac denervation syndrome. The cause of silent myocardial ischemia in diabetic patients is controversial. [care.diabetesjournals.org] Lateral Myocardial Infarction If the drug accelerates heart rate without improving coronary perfusion, myocardial ischemia will be even more pronounced 如果此药只加快心率而不改善冠脉灌注，心肌缺血就会更加显著。 [hujiang.com] Related topics ST segment elevations in acute myocardial infarction and ischemia STEMI (ST elevation myocardial infarction) without ST segment elevations Acute ST elevation [ecgwaves.com] […] of ischemia An exercise test such as a bicycle or treadmill test, may be useful in detecting myocardial ischemia after exercise. [en.ecgpedia.org] Ischemic Cardiomyopathy A mean of 2.9 /- 0.9 grafts per patient were performed, with an average myocardial ischemia time of 53 /- 23 minutes and bypass time of 104 /- 31 minutes. [ncbi.nlm.nih.gov] Clinical symptoms of acute or chronic myocardial ischemia due to congenital coronary anomalies occasionally develop during adult life. [ncbi.nlm.nih.gov] Findings including an autopsy report showed that myocardial ischemia was involved in the pathogenesis of what initially appeared to be primary dilated cardiomyopathy, based [ncbi.nlm.nih.gov] Cardiogenic Shock The leaflet tethering was triggered by transient myocardial ischemia around the anterolateral papillary muscle, which could have been caused by coronary spasm and/or microvascular [ncbi.nlm.nih.gov] The elevated heart rate and contractility increases myocardial oxygen demand, further worsening myocardial ischemia. [emedicine.com] Finally, excessive myocardial oxygen demand with simultaneous inadequate myocardial perfusion worsens myocardial ischemia, initiating a vicious cycle that ultimately ends [emedicine.com] Nonsustained Ventricular Tachycardia ischemia. [ncbi.nlm.nih.gov] Acute myocardial ischemia is an established cause of polymorphic ventricular rhythms. [heartlandcardiology.com] In acute myocardial infarction, in-hospital NSVT has an adverse prognostic significance when detected beyond the first 13 to 24 h. [ncbi.nlm.nih.gov] Heat Stroke A 23-year-old comatose man was presented in the emergency room. He had been working inside a building under construction on a hot summer's day. His core body temperature was 42.1 degrees C and he was diagnosed with heat stroke. Urgent cooling procedures, including applying cold vapor to the patient's skin, a[…] [ncbi.nlm.nih.gov] Hypothermic Anesthesia Intraoperative hypothermia can lead to serious clinical complications such as, myocardial ischemia, coagulopathy, immunosuppression, and surgical wound infection. [clinicaltrials.gov] Ischemia 337 Diagnosis and Management 357 Chapter 21 Transesophageal Echocardiography for Trauma and Critical Care 381 Chapter 22 Cardiopulmonary Mechanical Assist Devices [books.google.com] ischemia. [link.springer.com] Left Bundle Branch Block BACKGROUND: Assessing the effect of myocardial ischemia on ventricular repolarization in the setting of left bundle branch block (LBBB) poses a challenge due to secondary [ncbi.nlm.nih.gov] BACKGROUND: Functional tests have limited accuracy for identifying myocardial ischemia in patients with left bundle branch block (LBBB). [ncbi.nlm.nih.gov] We describe the case of a 73 year-old woman presenting with symptoms compatible with myocardial ischemia/injury and left bundle branch block in whom the electrocardiogram [ncbi.nlm.nih.gov] Low-Cardiac-Output Syndrome Although these agents may increase cardiac output, they also heighten the risk of atrial and ventricular arrhythmias, and they may exacerbate myocardial ischemia by increasing [nejm.org] Several studies have proposed the essential role of ROS in the pathogenesis of myocardial ischemia-reperfusion injury [10, 11]. [hindawi.com] Given that contractility is affected by myocardial ischemia stemming from use of an aortic clip, inflammatory response, and some anesthetic drugs, inotropic agents are used [revespcardiol.org] Early Repolarization Syndrome The presence of "early repolarization" does not preclude diagnosis of exercise-induced myocardial ischemia by treadmill testing, and coronary vaso-occlusive lesions may be [ncbi.nlm.nih.gov] These changes commonly simulate pericarditis, myocardial ischemia, left ventricular hypertrophy and right bundle branch block. [ncbi.nlm.nih.gov] It was noted that baseline 12-lead ECG exhibited a predominantly elevated ST-segment which mimicked acute myocardial ischemia in lead V2-V6, and the ECG also demonstrated [ncbi.nlm.nih.gov] Acute Atrial Infarction ischemia. [books.google.com] Electrocardiogram: myocardial ischemia, ECG: myocardial ischaemia NOS, ECG: myocardial ischemia NOS, Myocardial Ischemia by ECG Finding, ECG myocardial ischemia, ECG: myocardial [fpnotebook.com] […] exacerbate ongoing myocardial ischemia. [link.springer.com] Aneurysm of Sinus of Valsalva Myocardial ischemia from decreasing CBF or coronary thrombosis Endocarditis Sudden death from arrhythmia or left main coronary artery compression Survival 10 year survival [pie.med.utoronto.ca] If symptoms do occur, the most common are shortness of breath, palpitations, myocardial ischemia, and syncope. [en.wikipedia.org] Occasionally present with arrhythmias (CHB, AF, VT) from compression of atrioventricular node (AVN), IVS and bundle of His or myocardial ischemia from obstruction of coronary [pie.med.utoronto.ca] Coronary Arteriovenous Fistula The symptoms and signs of congestive heart failure and myocardial ischemia disappeared after the procedure. [ncbi.nlm.nih.gov] ischemia involving the right coronary artery. [ncbi.nlm.nih.gov] Myocardial ischemia in this patient may have been due to a steal phenomenon caused by coronary artery fistulae, as suggested by blood flow velocity data obtained before and [ncbi.nlm.nih.gov]
