Cardiology Flashcards
What are some causes of secondary hypertension?
Renal parenchymal diease (e.g. GN, reflux nephropathy)
Renal artery stenosis
Adrenal tumours (hyperaldosteronism, hypercortisolism, phaeochromocytoma)
Sleep apnoea
Aortic coarctation
What questions should you ask when taking a history of patient with hypertension?
Family history of CVD Past coronary or cerebrovascular events Heart failure symptoms Renal disease symptoms Smoking Diabetes High cholesterol
What examinations should you perform on a patient with hypertension?
BP and pulse rate/rhythm
BMI and waist circumference
Full cardio exam
Fundal inspection
Renal mass (polycystic) and bruits (renal artery stenosis)
Stigmata of secondary causes (e.g. cortisol excess)
What tests should you perform on a patient with hypertension?
Plasma potassium (low in hyperaldosteronism)
Plasma creatinine (high in renal disease)
Fasting glucose
Fasting lipids
FBE
LFTs
Urine albumin/creatining ratio (renal damage)
MSU (renal disease)
ECG and echocardiogram (coronary disease and cardiac hypertrophy)
When do you treat hypertension?
- SBP >180 mmHg
- DBP > 110 mmHg
- BP >160/70 mmHg
- BP >140/90 mmHg + associated conditions OR high CV risk
How do we manage hypertension?
Non-pharmacological: - lose weight - improve fitness - avoid excess salt - moderate alcohol - stop smoking Pharmacological: - ACE inhibitors - beta blockers - Ca channel blockers - Diuretics
What are the risk factors for ischaemic heart disease?
- Dyslipidaemia
- Hypertension
- Diabetes
- Smoking
- Family history
- Age
- Physical inactivity
- Obesity
What are common presenting symptoms of an AMI?
- Chest pain described as a pressure sensation, fullness, or squeezing in the midportion of the thorax
- Radiation of chest pain into the jaw or teeth, shoulder, arm, and/or back
- Associated dyspnea or shortness of breath
- Associated epigastric discomfort with or without nausea and vomiting
- Associated diaphoresis or sweating
- Syncope or near syncope without other cause
- Impairment of cognitive function without other cause
How do we diagnose an AMI?
- ECG changes
2. Elevated troponin levels
How do we manage an initial presentation of AMI?
Remember MONA = Morphine Oxygen Nitrates Aspirin
What are the complications of an AMI?
- Ischaemic: angina, reinfarction, infarct extension
- Mechanical: heart failure, cardiogenic shock, mitral valve dysfunction, cardiac rupture
- Arrhythmic: atrial or ventricular arrhythmias, sinus or atrioventricular node dysfunction
- Embolic: central nervous system or peripheral embolisation
- Inflammatoy: pericarditis
What are the consequences of uncontrolled hypertension?
- Coronary artery disease
- Stroke
- Cardiac hypertrophy
- Heart failure
- Kidney failure
How is pericardial pain typically described?
- central or left side
- sharp, stabbing pain
- worse on movement
- worse on breathing
- relieved by sitting up and leaning forward
- worse when lying down
How is pleuritic chest pain typically described?
- sharp, stabbing pain
- localised
- worse on inspiration or coughing
- may be worse on sitting up or leaning forward
- not related to exertion
How is oesophageal pain typically described?
- usually “burning” but may be dull ache
- worse after meals
- worse on lying down
- relieved by antacids
- oesophageal spasm may be releaved by GTN