…Myocardial injury leads to release of cardiac troponin, but troponin elevation is not specific for myocardial infarction. Other conditions may produce cardiomyocyte injury and elevated…
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…Myocardial injury leads to release of cardiac troponin, but troponin elevation is not specific for myocardial infarction. Other conditions may produce cardiomyocyte injury and elevated…
…always be specified. Coronary arterial thrombi are predominantly platelet rich because they form under high shear conditions. Disruption of an atherosclerotic plaque or injury associated…
…coronary occlusion and progress over time. Experimentally, necrosis advances from the subendocardium towards the subepicardium over several hours. The extent and tempo of injury are…
…ostia. It remains the reference standard for defining the extent of coronary artery disease because it provides anatomical information while permitting functional assessment and, when…
…bradycardia in the early hours following infarction may be associated with hemodynamic compromise. More broadly, bradyarrhythmic arrest and asystole represent severe manifestations of impulse generation…
…segment depression is a common and early electrocardiographic sign of acute pericarditis, reflecting pericardial involvement overlying the atria [4, 5]. Other Differential Diagnoses ST segment…
…Types 2–5 MI have other mechanisms of myocardial ischaemia and necrosis. Unstable angina (UA) represents myocardial ischaemia without demonstrable acute cardiomyocyte injury or necrosis…
…biomarkers because they are extremely sensitive and specific for myocardial injury. Elevated levels of cardiac troponins is firm evidence of myocardial necrosis (i.e infarction…
…various interventions involved in BLS and ACLS. Intervention BLS or ACLS NNT to save 1 person Reference Early detection of cardiac arrest BLS 11 Berdowski…
…In the vast majority of cases, the re entry circuit in atrial flutter is located in the right atrium and it typically loops around the…
…pads if the patient is unstable or at marked risk of arrhythmia. 4. Take a full blood count, electrolytes, creatinine, glucose, high sensitivity troponin and…
…injection has gone to the right place — immediate pain relief is a diagnostic finding — and appears to reduce the risk of a post injection flare…
…Q waves and guidelines do not state any ECG criteria specific to R wave progression. Figure 1. Pathological R wave progression is indicative of previous…
…reproductive and pregnancy related history. Female specific or female predominant factors associated with later cardiovascular risk include: Premature menopause Premature ovarian insufficiency Hypertensive disorders of…
…blood pressure Other cardiovascular risk factors and relevant comorbidities Evidence of hypertension mediated organ damage Existing cardiac, cerebrovascular, or renal disease The possibility of a…
…accumulation of bradykinin. ACE is responsible for metabolizing bradykinin and other tachykinins, such as substance P. When ACE is inhibited, the resulting accumulation of these…
…X linked or other non autosomal dominant mechanisms. Complex or multifactorial genetic architecture. The inheritance pattern affects the appropriate scope and duration of family surveillance…
…in the context of the clinical presentation and other findings. A reduced CFR may occur with angiographically insignificant epicardial disease because of abnormalities in the…
…obstruction of the bowel or the urinary tract. Marked bradycardia, sick sinus syndrome or high grade AV block without pacemaker protection. Asthma and other marked…
…to the left of the sternum, the other on the back between the left scapula and the spine. The anterolateral position also works and is
…low density lipoprotein (VLDL) Chylomicrons and other triglyceride rich particles Thus, non HDL C provides a broader estimate of atherogenic cholesterol than LDL C alone…
…adults with elevated blood pressure (BP), in whom absolute cardiovascular risk varies considerably according to age and the presence of concomitant risk factors. In contrast…
…The cardiovascular burden of CKD extends beyond CAD to peripheral arterial disease, cerebrovascular disease, valvular heart disease, heart failure, atrial fibrillation, and other arrhythmias or…
…evaluation of patients receiving digoxin reveals specific electrophysiologic profiles. Digoxin's autonomic actions largely slow the sinus node discharge rate, shorten atrial refractoriness, and prolong…
…Pericardial disease, including constriction Right ventricular dysfunction caused by pulmonary embolism Infiltrative cardiomyopathies, particularly cardiac amyloidosis Sepsis and other hyperdynamic states In cardiac amyloidosis, BNP…
…is mediated by the combined effects of hyperglycaemia, hypertension, dyslipidaemia, obesity, smoking and other conventional risk factors, together with diabetes specific vascular and metabolic abnormalities…
…have specific contraindications: Adenosine, Dipyridamole, Regadenoson : Should be avoided in patients with active bronchospasm, severe hypotension, or high degree AV block. Caffeine and other methylxanthines…
…contraindications, and subject preparations. We will also discuss the relevance of withholding specific cardioactive medications during exercise testing (exercise ECG). Indications for exercise stress test…
…increases the quality of the examination, and allows for standardized comparisons of serial examinations. If pathology is discovered during the standard examination, other examinations (which…
…benign and the most common cause of sinus arrest/pause. It commonly affects younger individuals who endure intense emotional stress, acute pain or other stimuli…
…not be depolarized via the Purkinje network, but rather via spread of the depolarization from the right ventricle. The abnormal ventricular depolarization will cause an…
…the other valves. The area is calculated by measuring the diameter of the valve ( area = π × radius 2 , where radius = diameter/2 ), and…
…the last dose, the renal function and the severity of the bleeding 7 Manage antiplatelet drugs according to their indication. Do not routinely stop aspirin…
…intraluminal mass and lesion haziness raise suspicion of thrombus, although haziness is not specific. Intravascular imaging can identify plaque disruption, thrombus and other structural features…
…provide a specific examination profile or diagnostic physical signs for LMCAD. Diagnostic Assessment Coronary angiography Invasive coronary angiography defines: The presence and severity of left…
…or detection of prescribed drugs in blood or urine. The terms “controlled resistant hypertension,” referring to blood pressure controlled with four or more medications, and …
…loss of organized atrial systole. Transesophageal echocardiography and surgical pathology demonstrate that over 90% of thrombi in non valvular AF originate within this specific anatomical…
…terms of rhythm, morphology, normal findings, normal variants, etc – from adult electrocardiograms. It is crucial to be familiar with normal findings, normal variants, and pathology…
Arrhythmias and arrhythmology ECG Mechanisms of cardiac arrhythmias: from automaticity to re entry This section introduces the most common arrhythmias encountered in clinical practice, beginning…
…the volume, echogenicity and location of the effusion. Regarding the location, an effusion may be general (circumferential) or localized to a specific area. The effusion…
…to recite the months of the year backwards. A normal result does not exclude delirium, however, and an abnormal result is not specific to delirium…
…prediction tool currently exists. At the other end, roughly two thirds of ICDs implanted for reduced LVEF never deliver an appropriate shock, so the false…
…of supraventricular tachycardias (SVTs), usually within 30 seconds. Doses higher than 18 mg are unlikely to revert a tachycardia and should not be used. Specific…
…known malignancy may suggest specific, nonidiopathic etiologies [2]. Summary of Pain Characteristics The following table synthesizes the key differential diagnoses and their characteristic pain patterns…
…characterized by persistently elevated plasma low density lipoprotein cholesterol (LDL C) from early life and a consequent excess risk of premature atherosclerotic cardiovascular disease (ASCVD)…
…30%) and dyspnea (10%). The major ECG findings in ARVC are T wave inversion in V1–V3 (in the absence of right bundle branch block…
…highlighting specific segments of the left ventricle that demonstrate abnormalities. These tools compare perfusion data to population based reference databases, often adjusted for sex and…
…Addison's disease and digoxin intoxication may also cause hyperkalemia. ECG in mild hyperkalemia (potassium 6,0 mmol/L) The earliest sign of hyperkalemia is…
…may therefore underestimate the ketosis early on and remain positive after the clinically relevant ketosis has resolved. Capillary measurement of beta hydroxybutyrate has high diagnostic…
…develop during acute management. AF is often haemodynamically tolerated and may require no specific acute therapy beyond appropriate anticoagulation and management of ventricular rate. However…
…8. Document the ceiling of care and the decision on intubation early. Initial assessment Confirm that the presentation fits an exacerbation A COPD exacerbation is…
Info Table 1 provides a summary of the indications, contraindications, dosage, administration, warnings, precautions, and other relevant information for the drug Ticagrelor . Table 1 Summary…
…reflects the concentration of circulating atherogenic particles because each apoB containing particle carries one apoB molecule. LDL C, non HDL C and apoB are usually…
ECG Myocardial ischemia and infarction Myocardial ischemia: cellular changes, ECG signs and development of infarction Like all other cells in the human body, cardiac myocytes…
…history, a positive Dix–Hallpike test and the absence of other neurological findings. The treatment is a repositioning manoeuvre. Indications Brief attacks of vertigo, seconds…
…the efficacy of diuretics and antihypertensives. Risk of acute kidney injury increases when combined with ACE inhibitors. Corticosteroids and other NSAIDs: Increased risk of gastrointestinal…
…and progression of atherosclerotic disease in patients with established coronary or other atherosclerotic vascular disease. Antiplatelet therapy is a central component because platelet activation and…
…one pathway of platelet activation, its antiplatelet effect is relatively limited compared with agents that inhibit other platelet pathways. The distinction between primary and secondary…
…peripheral artery disease (PAD), and other manifestations of systemic atherosclerosis. The principal clinical concern is cerebral embolism or haemodynamic compromise leading to transient ischaemic attack…
…FH). Heterozygous FH results in high LDL cholesterol levels (but nothing else) and increases the risk of acute myocardial infarction by more than 50 times…