300 results
QT/QTc- Interval
•	Start of Q-wave to end of the T-wave (time of ventricular depolarization + repolarization).
•	Life threatening
/QTc interval may ... procainamide, amiodarone ... calculating the QTc ... Bazett formula, QTc ... • Hodges [QTc =
Common Medications Known to Prolong QTc
Antiarrhythmics - Amiodarone, sotalol, flecainide, quinidine, dronedarone, dofetilide
Vasopressors/inotropes - Epinephrine, norepinephrine,
Known to Prolong QTc ... Antiarrhythmics - Amiodarone ... pseudoephedrine #QTc
Drug-Induced Prolonged QTc

QTc >500ms is an independent risk factor for developing Torsades des Pointes (TdP)
Drugs causing
Drug-Induced Prolonged QTc ... QTc >500ms is ... Drugs causing QTc ... Antiarrhythmics: Amiodarone ... Induced #Prolonged #QTc
Amiodarone induced thyroid changes

Histopath: Remarkably enlarged follicles, distended with colloid, without 
scalloping, and lined by flattened
Amiodarone induced ... develops in 3% of amiodarone-treated ... is mediated by amiodarone's ... need to remain on amiodarone ... aakasharmand #Amiodarone
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
JTc=QTc-QRS When ... than prolonged QT ... Interval #JTInterval #QTc
Amiodarone Thyroid Complications
Amiodarone: 
 - iodine-rich, similar structure to T4, with half life up to 100d
Amiodarone Thyroid ... Complications Amiodarone ... phenomenon) • Amiodarone ... normal thyroid: amiodarone ... thyroiditis • Amiodarone
Common toxicities of antifungal agents. 
CNS = central nervous system; 5-FC = flucytosine; GI = gastrointestinal;
= intravenous; QTc ... = corrected QT
Want to remember what drugs prolong the QT interval? Remember COLLAPSE - Kitty Canavan @KathrynCanavan1
#Diagnosis #Peds
drugs prolong the QT ... COLLAPSE #Mnemonic #QTc
Amiodarone-Induced Lung Iniurv (AILI) - Timeline
Hours to days (peri-procedurally): ARDS
Days to months: DAH
Weeks: Eosinophilic pneumonia
Weeks to
Amiodarone-Induced ... BrighamChiefs #Amiodarone
Amiodarone Toxicity and Monitoring

Tremor Ataxia 
Ocular neuritis 
Corneal Microdeposits 
Bradycardia 
Pulmonary fibrosis 
Hepatotoxicity 
Blue-gray skin
Amiodarone Toxicity ... dabigatran #Amiodarone