cardiology Flashcards
Congenital heart disease
cyanotic: most common at birth, Fallot’s most common overall
TGA
Congenital heart disease
cyanotic: most common overall
most common at birth, Fallot’s
acyanotic: most common cause
VSD
HOCM mitral valve prolapse Ebstein's anomaly thyrotoxicosis secundum ASD
Associations of WPW
Management WPW
definitive treatment:
radiofrequency ablation of the accessory pathway
in the majority of cases, or in a question without qualification, Wolff-Parkinson-White syndrome is associated with ?deviation
left axis
Management WPW medical therapy:
sotalol**, amiodarone, flecainide
sotalol should be avoided in WPW if there is coexistent
atrial fibrillation as prolonging the refractory period at the AV node may increase the rate of transmission through the accessory pathway, increasing the ventricular rate and potentially deteriorating into ventricular fibrillation
WPW ECG
short PR interval
wide QRS complexes with a slurred upstroke - ‘delta wave’
Hypertension - NICE now recommend ?monitoring to aid diagnosis
ambulatory blood pressure
Clinic BP >= 140/90 mmHg and subsequent ABPM daytime average or HBPM average BP >= 135/85 mmHg
Stage 1 hypertension
Clinic BP >= 160/100 mmHg and subsequent ABPM daytime average or HBPM average BP >= 150/95 mmHg
Stage 2 hypertension
Clinic systolic BP >= 180 mmHg, or clinic diastolic BP >= 110 mmHg
Severe hypertension
Patients with established CVD should take atorvastatin ? dose
80mg on
treatment indicated for: ABPM/HBPM >= 135/85 mmHg (i.e. stage 1 hypertension)
and??
treat if
treatment indicated? ABPM/HBPM >= 150/95 mmHg (i.e. stage 2 hypertension)
offer drug treatment regardless of age
hypertension Step 1 treatment
patients 55-years-old or of Afro-Caribbean origin: calcium channel blocker
NICE recommend that all heart failure patients should take.
both an ACE-inhibitor and a beta-blocker
mgt Aortic dissection
type A - ascending aorta -
control BP(IV labetalol) + surgery
mgt Aortic dissection type B - descending aorta -
control BP(IV labetalol)
Atrial fibrillation: rate control
- beta blockers preferable to digoxin
Factors favouring rate control
Older than 65 years
History of ischaemic heart disease
Agents used to maintain sinus rhythm in patients with a history of atrial fibrillation
sotalol
amiodarone
flecainide
HOCM most common defects involve a mutation in the gene encoding
β-myosin heavy chain protein or myosin binding protein C.