Adenosine

Category: generalpediatrics-Cardiology

Findings: vagal maneuvers

Notes: For unstable patients, use synchronized cardioversion. For patients older than 12 months, you may try diltiazem or verapamil.

Question: Which medication should you use for SVT if the following fails?


Aortic Regurgitation

Category: generalpediatrics-Cardiology

Findings: apical early diastolic murmur, bounding pulses, associated with Marfan syndrome


Aortic Stenosis

Category: generalpediatrics-Cardiology

Findings: mid-systolic murmur at RUSB, thrill at suprasternal notch, left ventricular hypertrophy, diminished pulses, cardiomegaly, pulmonary edema

Notes: Treat with balloon dilation.

Question: Which disease is associated with these findings?


AV Canal Defect

Category: generalpediatrics-Cardiology

Findings: loud S1 and S2, holosystolic apical murmur, biventricular hypertrophy, increased pulmonary vasculature, commonly associated with Down Syndrome and DiGeorge

Notes: Combined VSD and ASD

Question: Which disease is associated with these findings?


Beta Blocker

Category: generalpediatrics-Cardiology

Findings: Torsades

Notes: Looks like polymorphic ventricular tachycardia on EKG. You may need a defibrillator, and may also treat with magnesium.

Question: What class of medication do you use to treat the following?


Beta Blockers Or Calcium Channel Blockers

Category: generalpediatrics-Cardiology

Findings: Wolff-Parkinson-White syndrome and atrial fibrillation or flutter

Notes: These are AV nodal blocking agents and make conduction through an accessory pathway more likely. Instead, use ibutilide or procainamide if vagal manuevers or adenosine do not work. If no medications work you may try synchronized cardioversion or later even defibrillation if the rhythm does not termiante.

Question: Which medications are CONTRAINDICATED in a patient with the following condition?


Hypercalcemia

Category: generalpediatrics-Cardiology

Findings: shortened QT, widened T wave, gastrointestinal upset

Notes: Hypercalcemia may be caused by overactive parathyroid gland, medications, cancer, granulomatosis diseases, immobilization, and familial hypocalciuric hypercalcemia.

Question: Which electrolyte abnormality is associated with these findings?


Hyperkalemia

Category: generalpediatrics-Cardiology

Findings: peaked T waves, flat P waves, shortened QT, ventricular tachycardia

Notes: Give calcium gluconate and treat with therapies that lower potassium such as insulin + glucose infusion, albuterol, and polystrene.

Question: Which disease is associated with these findings?


Hypertrophic Cardiomyopathy (HOCM)

Category: generalpediatrics-Cardiology

Findings: increases with standing or Valsalva, decreases with squatting, laterally-displaced PMI, diminished by hand grip, early systolic murmur

Question: Which disease is associated with these findings?


Hypocalcemia

Category: generalpediatrics-Cardiology

Findings: prolonged QT, muscle weakness, tetany


Hypokalemia

Category: generalpediatrics-Cardiology

Findings: prolonged QT, ST depression, flattened T waves, U waves


Hypomagnesemia

Category: generalpediatrics-Cardiology

Findings: prolonged QT, prolonged PR, aggravates hypokalemia


Mitral Regurgitation

Category: generalpediatrics-Cardiology

Findings: holosystolic murmur that radiates to axilla, associated with Marfan and Ehlers-Danlos


Mitral Stenosis

Category: generalpediatrics-Cardiology

Findings: mid-diastolic murmur heard at apex, associated with rheumatic heart disease


Mitral Valve Prolapse (MVP)

Category: generalpediatrics-Cardiology

Findings: mid-systolic click, increases with standing or Valsalva, decreases with squatting, hand grip increases murmur

Question: Which disease is associated with these findings?


Prolonged QT

Category: generalpediatrics-Cardiology

Findings: hypokalemia, hypocalcemia, hypomagnesemia, macrolides, levofloxacin, TCAs

Question: What EKG finding do these cause?


Pulmonary Stenosis

Category: generalpediatrics-Cardiology

Findings: single S1, widely split S2, harsh LUSB murmur, peaked P waves in lead II, RVH

Notes: P2 is even more delayed from A2. Seen with Noonan and Alagille syndrome.

Question: Which disease is associated with these findings?


Stills Murmur

Category: generalpediatrics-Cardiology

Findings: musical or buzzing murmur, mid-systolic, nonradiating, diminishes with standing


Tricuspid Stenosis

Category: generalpediatrics-Cardiology

Findings: mid-diastolic murmur heard at LLSB, can be congenital or caused later on by rheumatic fever or other causes

Question: Which disease is associated with these findings?


Venous Hum

Category: generalpediatrics-Cardiology

Findings: continuous vibratory right subclavicular murmur, present when sitting, resolves when supine

Notes: Benign.


Ventricular Septal Defect (VSD)

Category: generalpediatrics-Cardiology

Findings: holosystolic murmur at LLSB, hyperdynamic precordium, or no murmur and single S2, increased pulmonary vascular on CXR, biventricular hypertrophy

Notes: Treat with diuretics, digoxin, ACE inhibitor. May need to gave concentrated formula to decrease volume. More commonly seen in trisomies such as 13, 18 and 21 as well as Cri-du-chat.


Ventricular Tachycardia

Category: generalpediatrics-Cardiology

Findings: hyperkalemia, prolonged QT, digoxin toxicity

Notes: If hemodynamically stable, use adenosine. If unstable, do synchronized cardioversion.

Question: Which arrhythmia do these conditions cause?