…fracture of the leads. External causes are less common and include electrolyte disorders, metabolic disorders, hypoxemia, antiarrhythmic drugs, or electromagnetic disturbance caused by other machines…

…because myocardial injury may occur without myocardial ischaemia. Non ischaemic myocardial injury may accompany numerous cardiac and systemic disorders, including: Cardiac causes Systemic causes Heart…

…ask which of the pCO₂ and the HCO₃ deviates most. What matters is which change can explain the pH, and whether the other variable lies…

…hypertension and thromboembolic disorders. Most recognised heritable cardiovascular conditions demonstrate autosomal dominant transmission, in which an affected heterozygous individual has a 50% risk of transmitting…

…local and systemic disorders. Accumulation of fluid in the pericardial space may lead to increased intrapericardial pressure, which in turn affects ventricular relaxation (and thus…

…Interactions Pharmacodynamic interactions Anticoagulants, thrombolytics, or other platelet aggregation inhibitors: Salicylates inhibit platelet function and enhance the effect of anticoagulants, increasing bleeding risk. Monitor coagulation…

…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…

…1, formerly termed glucocorticoid remediable aldosteronism, and other familial forms associated with adrenal adenoma or bilateral adrenal hyperplasia. A family history is therefore important, particularly…

…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…

…mistaken impression of indigestion. STEMI pain can simulate pain from acute pericarditis, pulmonary embolism, acute aortic dissection, costochondritis, and gastrointestinal disorders. Radiation of discomfort to…

…injury leads to release of cardiac troponin, but troponin elevation is not specific for myocardial infarction. Other conditions may produce cardiomyocyte injury and elevated troponin…

…Other common causes are cardiomyopathy (hypertrophic or dilated), arrhythmogenic right ventricular cardiomyopathy, Brugada syndrome, early repolarization. Electrolyte disorders, acidosis, hypoxemia and ischemia all aggravate the…

…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…

…in other reports. It is more frequent in women and in patients presenting with NSTEMI than in those presenting with STEMI. Approximately one third of…

…Elsevier 2010 ). At the time of J 60 and J 80, there is minimal chance that there are any electrical potential differences in the myocardium…

…without identifiable cardiac disease. Contributing factors include pulmonary disorders, particularly obstructive pulmonary disease, the use of theophylline, and elevated catecholamine states. EAT typically has an…

…after reperfusion in an occluded coronary artery. It also occurs as side effect of drugs, hypoxia, myocarditis and electrolyte disorders. Because the rate (60–100…

…electrolyte disorders , congenital heart disease and catecholamine induced ventricular tachycardia . The vast majority of patients with ventricular tachycardia either have coronary artery disease (ischemic heart…

…tamoxifen or lithium, thiazide administration, and over supplementation of calcium and vitamin D. ECG in hypercalcemia Typical ECG changes: Shortened QT interval. Attenuated T wave…

…highly malignant disorder that must be recognized by any health care provider. A family history of any of the above listed symptoms and manifestations must…

…and herpes zoster pain are other considerations when assessing chest pain [2]. Autoimmune/Malignancy: A history suggesting an autoimmune disorder or known malignancy may suggest…

…of systemic arterial disease rather than an isolated disorder of the lower limbs. Patients frequently have concomitant coronary, cerebrovascular or other peripheral arterial disease, and…

…in combination with meprobamate for the treatment of sleep disorders. <a href="http://www.ncbi.nlm.nih.gov/pubmed/?term=Aceprometazine+AND+(%22QT%22+OR+Torsad…

…Use of cannabis, electronic cigarettes or other inhaled products. Readiness to attempt cessation. Depression, schizophrenia, schizoaffective disorder, HIV infection or other circumstances that may affect…

…antithrombotic surface, and control the adhesion and migration of inflammatory cells. Dyslipidaemia, cigarette smoking, hypertension, diabetes mellitus and other adverse influences disturb these functions. The…

…of dissection and impaired distal flow. These alternative causes must be distinguished from isolated no reflow because their treatment may require immediate stenting or other…

…an inherited disorder characterized by persistently elevated plasma low density lipoprotein cholesterol (LDL C) from early life and a consequent excess risk of premature atherosclerotic…

…Treatment of the alcohol use disorder and planned follow up , not merely detoxification. Benzodiazepines reduce the severity of withdrawal and the risk of seizures and…

…physical activity and any other precipitating factor. Thresholds The thresholds below are used above all in diabetes. The severity of the symptoms and the patient…

…is a correlation between the severity of electrolyte imbalance and the visible ECG changes. Specific electrolyte disorders 1. Sodium Increased (hypernatremia) and decreased (hyponatremia) sodium…

…is primarily a disorder of water balance. The plasma sodium reflects the ratio between the body's exchangeable sodium and potassium and the total body…

…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…

…typical of ischemia (but the sensitivity is low). U wave changes always accompany other ischemic ST T changes. They may occur in both NSTEMI and…

…set the COPD exacerbation apart from many other causes of acute dyspnoea: oxygen must be titrated cautiously and the blood gas determines the need for…

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…

…indicated with continuing ischaemia, shock, serious arrhythmia or acute heart failure. Routine opening of a persistently occluded infarct related artery in a stable and asymptomatic…

…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…

…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…

…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…

…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…

…In the setting of acute coronary syndrome (ACS), DAPT is used to reduce recurrent myocardial infarction, stent thrombosis and other ischemic events after coronary angiography…

…and drug related presentations Severe hypertension may result from phaeochromocytoma, monoamine oxidase inhibitor crisis, cocaine intoxication, or other sympathomimetic exposure, including methamphetamine. Abrupt withdrawal of…

…ventricular dysfunction, peripheral vascular disease and other manifestations of diffuse atherosclerosis. Percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) are revascularization procedures. Both…

…beats per minute. Note that with a paper speed of 25 mm/s, which is standard in the US and many other countries, a 2…

…This is because the strong and oppositely directed forces tend to cancel each other out. However, the ECG may show features characteristic of biventricular hypertrophy…

…myocardial ischemia. Other symptoms include dyspnea, pain radiating to the left arm/shoulder/throat, palpitations, back pain and selected cases of upper abdominal pain. An…

…sets of piezoelectric crystals; one set for sending ultrasound and the other for analyzing reflected sound waves. The cardinal difference between continuous wave Doppler and…

…annihilate each other, producing two gamma photons emitted in opposite directions. PET scanners detect these gamma rays to construct images with high spatial and temporal…

…opposite angle of observation. Other vectors may interfere with the injury currents, and inhibit them from being detected by leads with opposite angles of observation…

…electrically dissociated from each other. This condition is referred to as atrioventricular (AV) dissociation. Importantly, for the ventricles to have any electrical (and thus pumping)…

…lowest rib and the iliac crest, at the end of expiration, with the tape horizontal and without compressing the skin. Ratios and other measurements Measurement…

…the bleeding risk of the procedure and by renal function. In markedly reduced renal function (dabigatran at eGFR <30 mL/min, the other DOACs at…

…Work up and staging of lymphoma and myeloma. Suspected bone marrow metastasis. Assessment of treatment response and measurement of residual disease (MRD). Fever of unknown…

…plasmapheresis or other extracorporeal therapy (requires a large bore dialysis catheter, not an ordinary triple lumen catheter). Measurement of central venous pressure and central venous…

…front , and this is why the margin must be included in the freeze. Contraindications Absolute: Suspected melanoma or any other pigmented lesion of uncertain diagnosis…

…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…