…of myocardium leads to ventricular dilation and right heart failure. Biventricular heart failure is less common. ECG in ARVC T wave inversion in the lead…

…of acute coronary syndromes into STEMI, NSTEMI and unstable angina using ECG criteria. Acute myocardial infarction: a diagnosis based on cardiac troponins A diagnosis of…

…foreign materials pose a high risk of infection. Approximately 20% of all endocarditis affect people with valve prostheses and among other cases 18% show significant…

…our understanding of the pathophysiology of cardiac disease. Ultrasound systems have become cheaper, more portable, more powerful, equipped with an increasing number of methods to…

…infection at the puncture site, known thrombosis in the target vein. With a mechanical tricuspid prosthesis the lead must not be passed through the valve…

…should include: palpation of peripheral pulses; auscultation for carotid, femoral, and abdominal bruits; bilateral brachial blood pressure measurement; cardiac auscultation; inspection of the legs and…

…of this chapter. The normal ST segment and T wave The ST segment The ST segment represents the plateau phase (phase 2) of the cardiac…

…dyspnea (10%). The major ECG findings in ARVC are T wave inversion in V1–V3 (in the absence of right bundle branch block); virtually all…

…JE, Gwyther R, Kirkman E. Closed chest compressions reduce survival in an animal model of haemorrhageinduced traumatic cardiac arrest. Resuscitation 2019; 140:37 42. Endo…

…never happens, and to make sure the catheter does not become the patient's next focus of infection. Indications Infusion of vesicant solutions: vasopressors, concentrated…

…a suitable vein). Standby access in a patient at risk of rapid deterioration. Intraosseous access: Cardiac arrest where venous access is not immediately available. Shock…

…larger , since a mask that is too small leaks and gives a poorer seal. Procedure Insertion of the laryngeal mask 1. Check the mask, remove…

…aortic balloon pump. Assessment of stroke volume variation as part of fluid management. Contraindications Infection, burn or trauma over the insertion site. Insufficient collateral circulation…

…in particular that exceeds the patient's normal variation and requires a change of treatment. Common precipitants are viral infection, bacterial infection and air pollution…

…due to the misuse of prescription medications and illicit substances. Currently, opioid overdose stands as a predominant etiological factor for cardiac arrest within this demographic…

…pacemaker therapy. Treatment of AV block in the acute setting Treatment in the acute setting is directed at managing bradycardia and reduced cardiac output. Bradycardia…

…anaphylaxis, deep neck infection, an expanding haematoma, facial trauma. An anticipated course requiring a secured airway — transfer, heavy sedation, surgery — and cardiac arrest. Contraindications There…

…coronary or valvular disease Recent (<48 hours) use of dipyridamole or dipyridamole containing medications Ingestion of caffeinated foods or beverages within 12 hours prior to…

…1.0 mmol/L Triglycerides < 1.7 mmol/L 10 carries a risk of pancreatitis Cardiac markers and coagulation Test Reference Comment : : : High sensitivity…

…Syndrome]); blocking AV node conduction may result in accelerated transmission of atrial impulses to the ventricles and thus ventricular fibrillation and cardiac arrest. High degree…

…PH) is a heterogeneous pathophysiological disorder characterized primarily by elevation of pulmonary arterial pressure. It may arise from pulmonary vascular disease, left sided cardiac disease…

…Adenosine is an endogenous nucleoside present throughout the body that interacts with G protein coupled A1 receptors located on the extracellular surface of cardiac cells…

…segment depression or T wave inversion can occur without coronary artery disease. Proposed explanations in the source material include cardiac memory after abnormal ventricular activation…

…need for a vasopressor), obstructive shock or cardiac arrest with suspected pulmonary embolism. Urgent bedside echocardiography, looking for right ventricular strain. If CT pulmonary angiography…

…This distinction is important because AKI after a contrast study frequently occurs in patients with several simultaneous renal insults. Infection, hypovolaemia, cardiac dysfunction, haemodynamic instability…

…tree after selective intracoronary contrast injection under fluoroscopy. The procedure is performed by advancing guidewires and diagnostic catheters from a percutaneous arterial access site to…

…fraction. Enlargement of the left ventricle predisposes to atrial and ventricular arrhythmias. In advanced alcohol related cardiomyopathy, dilation may involve all four cardiac chambers. Associated…

…a fracture in the cribriform plate into the cranium Absolute Corrosive injury of the oesophagus or stomach after ingestion of a caustic substance Absolute Choanal…

…local practice Relative Skin infection, herpes zoster or burns over the puncture site Relative Mechanical ventilation with a high PEEP (an increased risk of pneumothorax…

…first. Procedure Choice of insertion site The left lower quadrant is the first choice : the abdominal wall is thinner there than on the right, and…

…base of skull fracture or marked coagulopathy argues against the nasal route; the oral route may then be considered. Preparation and equipment A 12 lead…

…poorer absorption. Injection into an arm with a dialysis fistula. Preparation and equipment Hand disinfection; gloves where there is a risk of blood contact. An…

Procedurer A corticosteroid injection into soft tissue gives rapid but time limited pain relief and rarely alters the natural history of the disease. In lateral…

…in some individuals the infection may be severe and deadly. Importantly, COVID 19 has caused an unprecedented number of severe and deadly infections among young…

…in the leads with the highest ST segment elevation. Figure 2. The electrocardiographic natural course in STEMI (ST elevation myocardial infarction). Inversion of T waves…

…from right anterior (V1) to left lateral (V6), but regrettably, the limb leads are not. Instead, the limb leads are displayed in two groups of…

…or a damaged nail fold edge Nail avulsion and inspection of the nail bed, with suture of any nail bed laceration Contraindications There are no…

…The commonest cause of wound infection is retained contamination, not poor suture technique — and the commonest cause of permanent loss of function is a tendon…

…sample : cortisol and plasma ACTH. The ACTH sample is taken before the injection and handled chilled. 4. Inject 0.25 mg of tetracosactide intravenously , slowly…

…infectious diseases physician early in a high risk course, in instability, with resistance problems, or with suspected fungal infection 10 Document the times of triag

…Time to onset of action 1 to 2 minutes Duration of action 10 to 30 minutes Delivery IV Dose Bolus injection : 5 to 15 mg…

…transmitted infection — although chlamydia and gonorrhoea can be tested on urine or a self taken vaginal sample without a speculum. Routine gynaecological examination of asymptomatic…

…Relative — avoid forced manoeuvres An ongoing respiratory infection with a risk of transmission Until symptom free Haemoptysis of unclear cause Until investigated Relative obstacles also…

…Which of the following describes a 'Black athlete repolarization variant' considered a normal ECG finding? A: T wave inversion in leads V1 V3 in athletes…

…primary infection, low risk of recurrence vancomycin 125 mg × 4 PO 10 days Clostridioides difficile, high risk of recurrence fidaxomicin 200 mg × 2 PO 10…

…of seizures, delirium tremens, infection, trauma and metabolic disturbance. 4. Monitoring at the appropriate level of care , with readiness for respiratory support. 5. Treatment of…

…salicylate poisoning, intubation with an inadequate minute ventilation can rapidly worsen the acidaemia and increase the entry of salicylate into the central nervous system. Discuss…

…misunderstood, particularly in the setting of ischemia. Normal T wave inversion An isolated (single) T wave inversion in lead V1 is common and normal. It…

…with the poison control centre. Gastric lavage is considered only after a life threatening ingestion of a highly toxic substance, where the patient arrives within…

…Choice of technique Diagnostic question Method Comment : : : Pigmented lesion, suspected melanoma Excision with a 1–3 mm margin, down into the subcutis Never a shave…

…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…

…corticosteroid injection in verified inflammatory or osteoarthritis related joint disease. Contraindications Infection of the skin or soft tissues over the puncture site — use another approach…

…Injection of contrast media into the ventricle will instead reveal that the apical portion of the left ventricle is dilated (hence the term apical ballooning…

…spread of infection A small or uncooperative child Movement causes injury Preparation and equipment Otoscopy: an otoscope with a charged battery and clean disposable specula…

…What usually ruins the examination is not the technique but the handling of the specimen — an aspirate that clots before the smears are made is…

…of the medulla result in the blood pressure lowering effect. Effects Potent blood pressure lowering effect. Pain relief. Delivery IV, IM, PO, transdermal Dose Injection…

…and aVL may occasionally display an isolated (single) T wave inversion. The term isolated implies that none of the neighboring leads display T wave inversions…

…the threshold, but the threshold varies between regions. Infection of the skin over the puncture site. Marked haemodynamic instability — stabilise the patient first. CT before…

…only in the presence of clinical signs of infection — all chronic wounds are colonised, and a culture taken without clinical suspicion leads only to unnecessary…

…done without losing time. 7. Perform urgent CT of the brain and CT angiography from the aortic arch to the vertex. 8. Contact the thrombectomy…