c Flashcards
Angina pectoris: drug management
aspirin and a statin in the absence of any contraindication
sublingual glyceryl trinitrate to abort angina attacks
beta-blocker or a calcium channel blocker then both if uncontrolled
symptoms and signs of ACS/MI
chest pain. typically central/left-sided may radiate to the jaw or the left arm dyspnoea sweating nausea and vomiting appear pale and clammy
The two most important investigations when assessing a patient with chest pain are:
ECG
cardiac markers e.g. troponin
Anterior V1-V4
Left anterior descending
Inferior II, III, aVF
Right coronary
Lateral I, V5-6
Left circumflex
Treatment of ACS
MONA Morphine Oxygen 94%> Nitrates Aspirin
second antiplatelet - clopidogrel, prasugrel and ticagrelor
GRACE in NSTEMI
investigations for aortic dissection
Chest x-ray
widened mediastinum
CT angiography of the chest, abdomen and pelvis is the investigation of choice
suitable for stable patients and for planning surgery
a false lumen is a key finding in diagnosing aortic dissection
Transoesophageal echocardiography (TOE) more suitable for unstable patients who are too risky to take to CT scanner
Management of Type A aortic dissection
surgical management, but blood pressure should be controlled to a target systolic of 100-120 mmHg whilst awaiting intervention
management of Type B aortic dissection
conservative management
bed rest
reduce blood pressure IV labetalol to prevent progression
classify a type A aortic dissection
ascending aorta, 2/3 of cases
classify a type B aortic dissection
descending aorta, distal to left subclavian origin, 1/3 of cases
tear in the tunica intima of the wall of the aorta
aortic dissection
Patients may require inotropic support and/or an intra-aortic balloon pump.
cardiogenic shock
treatment for chronic heart failure
Loop diuretics such as furosemide will decrease fluid overload. Both ACE-inhibitors and beta-blockers have been shown to improve the long-term prognosis of patients with chronic heart failure.
most common cause of death following a MI
ventricular fibrillation
Pericarditis in the first _____ hours following a transmural MI is common
48
an autoimmune reaction against antigenic proteins formed as the myocardium recovers. It is characterised by a combination of fever, pleuritic pain, pericardial effusion and a raised ESR. It is treated with NSAIDs.
dresslers syndrome
Dressler’s syndrome tends to occur around ______ weeks following a MI.
2-6 weeks
This is seen in around 3% of MIs and occurs around 1-2 weeks afterwards. Patients present with acute heart failure secondary to cardiac tamponade (raised JVP, pulsus paradoxus, diminished heart sounds). Urgent pericardiocentesis and thoracotomy are required.
Left ventricular free wall rupture
what is the first line treatment for acute heart failure?
IV Loop diuretics
associated with colorectal cancer
Streptococcus bovis
So which features make pulmonary embolism more likely?
The relative frequency of common clinical signs is shown below:
Tachypnea (respiratory rate >16/min) - 96%
Crackles - 58%
Tachycardia (heart rate >100/min) - 44%
Fever (temperature >37.8°C) - 43%
Accounts for 80% of cases of pneumonia
Particularly associated with high fever, rapid onset and herpes labialis
Streptococcus pneumoniae (pneumococcus)
Particularly common in patients with COPD
Haemophilus influenzae