Cardiology Pharmacology & dosing Definition and pathophysiology Congestion is a central expression of the heart failure syndrome and reflects excessive retention of sodium and water, with…

…Definition and pathophysiology Obesity is a chronic, relapsing and biologically complex disease characterized by excessive accumulation of adipose tissue. It is an important cause of…

…Catapress TTS 3 (0.3 mg/24hrs) Dosage in renal failure and renal replacement therapy: Dose as in normal renal function Adverse effects Excessive sedation…

…occurred in 10–15% during the first year. The dominant mechanism was excessive intimal hyperplasia within the stent. Restenosis was more likely with: Small reference…

…Recognised causes include: Diabetes and insulin resistance Thyroid disease Kidney disease Excessive alcohol consumption Diets high in carbohydrate or fat Glucocorticoids Beta blockers Oestrogen therapy…

…potential prolongation exhibits reverse use dependence, meaning the repolarization time is extended to a greater degree at slower heart rates. Sotalol does not significantly alter…

…rupture with tamponade, and less common causes such as severe pre existing valvular disease or excessive beta blocker or calcium channel blocker exposure. The incidence…

…oxygen must be titrated cautiously and the blood gas determines the need for ventilatory support . At the same time, exacerbation is a clinical syndromic diagnosis…

…severe DKA Cognitive impairment is more common, particularly at very high osmolality Blood ketones are preferable to urine ketones. The principal ketone body in DKA…

…context. 1. Rhythm Check Is the ventricular rate regular at 50–100 beats/min? Is there a P wave in front of every ventricular complex…

…of certain duration below the threshold at which anticoagulation is required. Contraindications Atrial fibrillation or flutter of unknown or excessive duration without adequate anticoagulation or…

…presentation is heterogeneous. AF may be well tolerated, particularly when the ventricular response is not excessive, or may cause substantial haemodynamic compromise. Symptoms and consequences…

…not linear at very low pressures. Excessive reduction in diastolic blood pressure may compromise coronary perfusion, particularly in patients with coronary disease. Excessive systolic reduction…

…Within the ARC HBR framework, HBR is defined by the presence of at least one major criterion or two minor criteria. The source material does…

…ischemia and infarction Definition and Pathophysiology Unstable angina (UA) is an acute coronary syndrome characterized by myocardial ischaemia occurring at rest or with minimal exertion…

…but excessive use of gain results in deterioration of image quality. Time gain compensation / control (TGC) Time gain control / compensation (TGC) adjusts the gain at…

…CYP2C9 variants) (1 point) E xcessive fall risk (1 point) S troke (1 point) HEMORR₂HAGES Score Risk category Incidence of major bleeding (per 100 patient…

…be caused by extensive subendocardial ischemia (NSTEMI). Establishing a diagnosis of Q wave infarction requires that pathological Q waves be present in at least two…

…oral dose, plasma concentrations peak within 3 to 6 hours. The agent undergoes extensive hepatic metabolism, yielding desethylamiodarone as a major active metabolite. Both the…

…failure (HF) symptoms may result from several overlapping processes: Recurrent or extensive MI with necrosis and scar formation Diffuse myocardial fibrosis Reversible ischemic dysfunction Chronic…

…endocardium, typically overlying an akinetic or dyskinetic myocardial segment after myocardial infarction (MI). It is particularly associated with extensive anterior or transmural infarction, apical dysfunction…

…At least minor right ventricular necrosis is found in approximately one third of patients with inferior infarction. Extensive involvement is less common in patients with…

…or sudden cardiac death. The resulting extensive ischemia causes immediate myocardial stunning (akinesia) and electrical instability. Fewer than 1% of patients with ST elevation myocardial…

…cast or has extensive wounds so that the cuff cannot be applied. Place the cuff over a protective dressing, or measure at the toe instead…

…oxygenation, never intubation in itself — and every difficult airway algorithm is at bottom a timetable for when to stop doing what you are doing. Indications…

…medusae) Puncture at least a few centimetres away from them Full bladder Have the patient void, or catheterise, before puncture Pregnancy, previous extensive abdominal surgery…

…studies of the urinary tract. Wound healing with a sacral pressure sore or extensive perineal wounds where urinary leakage prevents healing. Voiding problems in neurogenic…

…males and approximately 10 years later in females. Untreated HoFH is associated with extensive premature and progressive ASCVD; CAD and aortic stenosis may occur before…

…have a rate reducing effect in selected circumstances. Ivabradine undergoes extensive first pass hepatic metabolism through CYP3A4. Dose adjustment is required in severe hepatic or…

…rapid deterioration when a large myocardial territory is jeopardized. Cardiovascular collapse after failed PCI is more likely with extensive myocardium at risk, severe baseline stenosis…

…CAD. The pathophysiology of refractory angina is heterogeneous. In obstructive CAD, symptoms may result from extensive or diffuse epicardial disease, chronic total occlusion, incomplete revascularization…

…not fibrin specific and produces more extensive fibrinogen depletion. Successful fibrinolysis is generally accompanied by relief of ischaemic symptoms, at least 50% resolution of ST…

…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 subsequent sudden death are rare, the arrhythmia is precipitated by an extensive list of "torsadegenic" or "QT liability" drugs. This includes Class III antiarrhythmic…

…previously known as central pontine myelinolysis. Excessively rapid correction of sodium can result in catastrophic demyelination of pontine neurons. Acute Hyponatremia (<48 hours duration): Rapid…

…throughout this course. At the heart of ECG interpretation lies the ability to determine whether the ECG waves and intervals are normal. This chapter will…

…are as follows: The size of the thrombus (i.e the degree of artery obstruction): The greater the obstruction the more extensive the ischemia/infarction…

…connected myocardium may also result in mitral prolapse. Extensive myocardial infarction may lead to papillary muscle rupture. The risk of rupture is greater for the…

…radiolucent, tolerates moisture better, more expensive and stiffer to mould Elastic bandage Holds the slab in place; wound on without tension Tepid water, plastic gloves…

…weight 90 kg) 10 days or benzylpenicillin 1–3 g × 3 IV Extensive furunculosis flucloxacillin 1 g × 3 10 days Wound infection flucloxacillin 1 g…

…30 mm in depth. PAU is strongly associated with extensive atherosclerosis and frequently occurs in older patients with multiple vascular comorbidities. An isolated PAU is…

…atrial electrical activity. This activity most commonly presents as a characteristic saw tooth pattern at rates typically exceeding 200 beats per minute. While ECG appearances…

…stroke; emergency coronary angiography or PCI; cardiogenic shock; ST segment elevation myocardial infarction; extensive vascular calcification; female sex; low body mass index; larger arterial sheaths…

…guideline directed antianginal treatment. Typical angina or dyspnoea at a low level of exertion. Left ventricular dysfunction suggesting extensive obstructive CAD. A high risk result…

…130 msec in females , along with slurring or notching of the mid QRS in at least two left facing leads [7]. These stricter parameters correlate…

…myocardium, left main disease carries a substantial prognostic significance. The myocardial territory at risk has been described as approximately 75–100%, depending on coronary dominance…

…and Pathophysiology Myocardial injury Myocardial injury is a biochemical diagnosis defined by at least one cardiac troponin value above the assay specific 99th percentile upper…

…revascularization, while avoiding unnecessary procedural complications and bleeding in those at lower risk or in whom the hazards of revascularization outweigh its potential benefit. A…

…with a lifespan of 5–10 years. A shorter lifespan can be expected if the pacing requirement is extensive, or if the stimulus threshold (discussed…

…complete coronary artery occlusion, which results in the complete stop of blood flow and thus more extensive myocardial ischemia (referred to as transmural ischemia). Yet…

…performing emergency bedside examinations, regardless of image quality. The ultrasound transducer is held at the tip, using the thumb and the forefinger, while remaining fingers…