Myocardial Ischemia: Causes & Reasons

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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]

Our attention should be focused on the microvasculature with resultant myocardial ischemia and on the myocardial cell. [onlinejacc.org]

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]

Coronary Ischemia

Morris Karmazyn Birkhäuser, 12.03.2013 - 500 Seiten Myocardial ischemia and subsequent reperfusion of the ischemic myocardium represent complex phenomena encompassing numerous [books.google.de]

Myocardial Ischemia and the ST-T Segment Acute ischemia causes ST-T changes. [ecgwaves.com]

These abnormalities denote myocardial ischemia or infarction. [acls.com]

Fabry Disease

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]

Late cardiac manifestations are hypertrophic cardiomyopathy, myocardial ischemia, heart failure and ventricular arrhythmias associated with sudden cardiac death. [romanianjournalcardiology.ro]

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

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]

Electrocardiogram: myocardial ischemia, ECG: myocardial ischaemia NOS, ECG: myocardial ischemia NOS, Myocardial Ischemia by ECG Finding, ECG myocardial ischemia, ECG: myocardial [fpnotebook.com]

Posterior myocardial infarction represents the end result of myocardial ischemia and coronary insufficiency due to acute obstruction of either right or circumflex coronary [symptoma.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]

Title Kardiovaskulárna autonómna neuropatia, ischémia myokardu a komorová dysrytmia u diabetikov 1. typu = Cardiovascular autonomous neuropathy, myocardial ischemia and ventricular [medvik.cz]

[…] 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]

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]

Abstract The term unstable angina has been conventionally applied to patients with myocardial ischemia without myocardial necrosis. [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]

Anterior Myocardial Infarction

But early intervention should be considered in the presence of ongoing myocardial ischemia. [ncbi.nlm.nih.gov]

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]

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]

The apical myocardial infarction is a subtype of the acute coronary syndrome, caused by myocardial ischemia. [symptoma.com]

Myocardial ischemia might also cause serious abnormal heart rhythms. Treatment for myocardial ischemia involves improving blood flow to the heart muscle. [mayoclinic.org]

Lateral Myocardial Infarction

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]

Subendocardial ischemia manifests as ST depression and is usually reversible. In a myocardial infarction transmural ischemia develops. [en.ecgpedia.org]

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]

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]

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]

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]

[…] or a biphasic response indicating the presence of inducible myocardial ischemia. [symptoma.com]

Clinical symptoms of acute or chronic myocardial ischemia due to congenital coronary anomalies occasionally develop during adult life. [ncbi.nlm.nih.gov]

Hypothermia due to 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]

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 raised heart rate and contractility increases myocardial oxygen demand, further worsening myocardial ischemia. [www1.cgmh.org.tw]

The elevated heart rate and contractility increases myocardial oxygen demand, further worsening myocardial ischemia. [emedicine.com]

Nonsustained Ventricular Tachycardia

Cardiac troponins should also be measured when acute myocardial ischemia is suspected. [symptoma.com]

Acute myocardial ischemia is an established cause of polymorphic ventricular rhythms. [heartlandcardiology.com]

The most frequent causes of the disease in middle-aged individuals are myocardial ischemia, valve diseases and cardiomyopathies, whereas younger people may suffer from long [symptoma.com]

Diffuse Intraventricular Block

Left posterior fascicular block (LPFB) Lateral myocardial infarction Right ventricular hypertrophy (RVH) Acute lung disease (e.g. [lifeinthefastlane.com]

Inverted T waves Ischemia: Myocardial ischemia is a common cause of inverted T waves. [clinicaladvisor.com]

Electrical alternans can also be seen in myocardial ischemia, acute pulmonary embolism, and tachyarrhythmias PR segment depression (this can also be observed in an atrial [en.ecgpedia.org]

Heat Stroke

Heat stroke (HS) is defined as a severe elevation of core body temperature along with central nervous system dysfunction. Exertional heat stroke (EHS) with acute liver failure (ALF) is a rare condition. The authors report the case of a 25-year-old man with a history of cognitive enhancers' intake who developed[…] [ncbi.nlm.nih.gov]

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]

During general anaesthesia, LBBB may be related to hypertension or tachycardia and its acute onset makes the diagnosis of acute myocardial ischemia or infarction difficult [ncbi.nlm.nih.gov]

AV Block Mobitz II

The prevelance and management of AV block in the setting of chronic myocardial ischemia remains unclear. Our case presented with stable angina pectoris. [ncbi.nlm.nih.gov]

Patients who have a second-degree atrioventricular block secondary to myocardial ischemia may present with chest pain. [ncbi.nlm.nih.gov]

Atropine should not be relied upon and in the case of myocardial ischemia it should be avoided. [acls-algorithms.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]

Acute Atrial Infarction

ischemia. [books.google.com]

Subendocardial ischemia manifests as ST depression and is usually reversible. In a myocardial infarction transmural ischemia develops. [en.ecgpedia.org]

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]

Patients with such fistulas often have loud continuous cardiac murmurs and may have congestive heart failure, myocardial ischemia (due to a coronary-artery ”steal” phenomenon [nejm.org]