…Suspected acute glaucoma (tonometry). Contraindications Absolute contraindications to instrumental removal: Suspected penetrating injury or an intraocular foreign body — shield the eye with a rigid shield…

…bronchospasm during anaesthesia, a drug infusion or the administration of contrast medium Skin symptoms are absent in approximately 10 to 20 percent of anaphylactic reactions…

Procedurer The most serious transfusion accidents rarely stem from laboratory errors but from the wrong blood being given to the wrong patient — a mislabelled tube…

…invasive fluoroscopic procedure in which contrast media are injected selectively into the epicardial coronary arteries through a catheter advanced from a peripheral artery to the…

…blood pressure of 20 mm Hg systolic or 10 mm Hg diastolic leads to a doubling of the risk of stroke and acute myocardial infarction…

…oxygen demand) in order to provoke ischemia in myocardium supplied by atherosclerotic arteries. This engenders the typical ECG changes as well. In acute coronary syndromes…

…due to high vagal tone. These individuals have developed a highly efficient left ventricle, capable of generating sufficient cardiac output at low heart rates. During…

Indications Acute myocardial infarction. Unstable coronary artery disease. Stable angina pectoris. Secondary prophylaxis to prevent recurrence of cerebrovascular diseases, such as: Transient ischemic attacks (TIA…

…15 µg/kg/min 0.02–0.1 µg/kg/min A bridge to pacing Magnesium 2 g IV over 10 min 25–50 mg…

…initiates inflammatory reactions that promote plaque formation and progression. As the burden of retained atherogenic particles accumulates over time, the probability of an acute atherosclerotic…

…be paroxysmal, extended ambulatory monitoring is often required to capture symptomatic events. A typical 24 to 48 hour Holter monitor is frequently insufficient. Monitors that…

…adequate. For example, a patient with acute graft occlusion may report an abrupt reduction in walking distance before claudication, accompanied by moderate pain or paresthesia…

…confined to a single lesion. Consequently, local revascularization must be accompanied by systemic treatment aimed at stabilizing the broader atherosclerotic disease. Pathophysiology Mechanisms of acute…

…circulating LDL particles. Its principal clinical effect is therefore reduction of LDL cholesterol (LDL C), through a mechanism complementary to that of statins. Statins reduce…

…The patient will experience severe chest pain due to the abrupt reduction of coronary blood flow. Acute coronary syndromes are subdivided into STE ACS and…

…prasugrel should be considered in preference to ticagrelor, although the comparative evidence between prasugrel and ticagrelor is conflicting. A 12 month regimen remains the default…

…risk plaques may coexist within one coronary tree, and inflammatory activity may be widespread rather than confined to a single lesion. Plaque composition is heterogeneous…

…the benefit of ischemic preconditioning, while other studies have failed to establish such a relation. The most cited study to date, Botker et al62001 8…

…inflammatory cells to vascular lesions. The interleukin 1β pathway, with downstream effects involving interleukin 6 and C reactive protein, has been a major therapeutic…

…been discussed previously (refer to Classification of Acute Coronary Syndromes, and Ischemia and the ST Segment and ST segment depressions), a rehearsal of ECG characteristics…

…is a marker of several crucial events and factors: Cause of cardiac arrest : Shockable rhythms (ventricular fibrillation, pulseless ventricular tachycardia) are mostly due to acute…

…Condition Overall strategy Common first choices : : : Acute aortic syndrome Immediate rate control and rapid reduction of the systolic blood pressure towards 100 to 120 mmHg…

…the PR segment). Refer to Figure 1 B . Figure 1. (A) The relation between the action potential and the ECG curve. Myocardial ischemia primarily affects…

…subsequent reduction in left ventricular preload lead to a cascade of hemodynamic alterations which may culminate in cardiac arrest. Pulmonary embolism is causally related to…

…or electrical instability in advanced or acute presentations Left main disease may be clinically silent, and revascularisation recommendations are not restricted to patients with symptoms…

…include acute chest pain or chest discomfort, with associated manifestations of myocardial ischaemia. In pregnancy, the clinical presentation of ACS is generally similar to that…

…patients without severe ischaemia. Evaluation and Physical Examination The initial evaluation should be structured to establish a working diagnosis of STEMI rapidly, identify haemodynamic or…

…to exercise, such as unstable angina, severe aortic stenosis, decompensated heart failure, or aortic aneurysm. Baseline ECG abnormalities rendering ST T interpretation difficult, including left…

…oedema but makes the brain sensitive to a rapid increase in extracellular tonicity. This explains why acute hyponatraemia chiefly carries a risk of cerebral oedema…

…often during the first days after ST elevation myocardial infarction (STEMI). The principal lesions are: Ventricular septal rupture (VSR), producing an acute left to right…

…Aortic disease An acute aortic dissection is a hypertensive emergency requiring the most rapid BP response. The objective is to reduce aortic wall shear stress…

…events are substantially greater than the usually modest anatomical regression of coronary atherosclerosis. The magnitude of LDL C reduction varies according to the statin, dose…

…Procedure Intravenous titration in acute severe pain Practical points during titration: Give the injection slowly over at least a minute; a rapid injection causes nausea…

…therapy added when necessary to achieve the recommended LDL C target. Inclisiran: pharmacology and lipid effects Inclisiran produces a dose dependent reduction in PCSK9 and…

…daily in the catheterization laboratory in patients undergoing acute PCI. The PCI operator may use the ECG to obtain immediate confirmation on whether the intervention…

…acute heart failure and in obstructive airways disease Verapamil or diltiazem When a beta blocker is contraindicated, for example in asthma Contraindicated in impaired left…

…another half slab for a fresh injury, acute swelling, after reduction and before surgery. The slab allows the volume to increase. A circumferential cast gives…

…te term to describe a reduction of blood flow to tissues and organs. A few decades later Cohnheim demonstrated that ligation of the left anterior…

…again on call: which dose, how long to interrupt treatment before a procedure, and how to reverse in bleeding. Doses in atrial fibrillation Drug Standard…

…Acute cardiovascular effects Acute ethanol exposure has a negative inotropic effect and promotes peripheral vasodilation through reduced systemic vascular resistance. The resulting mild reduction in…

…is associated with approximately a 25% reduction in recurrent infarction, stroke, or cardiovascular death. In the cited evidence, this corresponded to 36 fewer events per…

…contribute to the development and progression of aortic pathology. Severe HTG, especially when associated with chylomicronaemia, has a well established observational association with acute pancreatitis…

…A brief, structured intervention should be used whenever smoking is identified. During encounters with smokers, “very brief advice” can initiate discussion and promote referral to…

…stress generally indicates previous infarction. Extensive ischaemia may produce a reduction in global LVEF and transient LV cavity dilatation during stress. Stress echocardiography can also…

…and abundant tissue factor [9] . The transition from a stable plaque to a high risk, vulnerable plaque (VP)—specifically the thin cap fibroatheroma (TCFA)—is…

…or electrophysiology in relation to ACE inhibitor therapy. Biomarkers and Laboratory Findings Monitoring renal function and potassium is a critical component of ACE inhibitor therapy…

…or pericarditis Acute aortic dissection Physical disability that precludes safe and adequate testing Relative contraindications Known obstructive left main coronary artery stenosis Moderate to severe…

…a sinoatrial pause. Refer to Figure 1 . Figure 1. Sinoatrial arrest. Also note the ST segment elevations (which in this case have no relation to…

Procedurer Compression is the treatment that heals venous leg ulcers; everything else is supportive. But the same compression applied to a limb with arterial insufficiency…

…mechanisms have been proposed to precipitate acute coronary events during infections: An acute coronary event may be triggered by increased myocardial demand during the infection…

…Because NT proBNP is not a neprilysin substrate, it remains more closely related to the clinical state during treatment with an angiotensin receptor–neprilysin inhibitor…

…interventricular septum, or mitral valve apparatus. These lesions can cause acute severe regurgitation, a left to right shunt, tamponade, or sudden loss of effective cardiac…

…mass index Asian ancestry Previous muscle disease or a personal or family history of muscle disorders Acute infection Renal or hepatic impairment Hypothyroidism Vitamin D…

…as an interventional alternative to suppress the arrhythmia [4]. Relief of Triggers Addressing the underlying precipitating factors is a critical component of acute management [4…

…including chronic coronary syndromes and acute coronary syndromes HF across the spectrum of left ventricular ejection fraction AF and other arrhythmias Ischaemic stroke PAD CKD…

…reflex response to posture, venous pooling, or external stimuli. The underlying pathophysiology is rooted in autonomic dysregulation within a structurally normal heart. During an episode…

…CPR, and a prognostic indicator for survival. In the nationwide Swedish Cardiopulmonary Resuscitation Registry, 30 days survival in OHCA, in relation to initial rhythm, is…

…pericarditis Trauma Cardiac surgery and other iatrogenic cardiovascular procedures Acute aortic disease, particularly ascending or type A aortic dissection Myocardial free wall rupture after infarction…

…defined as stenosis of at least 70%, while a left main coronary stenosis of at least 50% is considered significant. These thresholds describe luminal narrowing…

…aortic dissection, acute renal failure, pre eclampsia) — intravenous treatment with a controlled reduction, as a rule no more than 25% during the first hour. The…