IBHRE Studies Exam With 100% Correct
Answers 2025/2026
COMPANION - Correct Answer-CRT decreased hospitalizations and mortality NYHA
Class III-IV
BLOCK HF - Correct Answer-RVP vs BiVP; BiVP reduced hospitalization
MADIT-RIT - Correct Answer-Reduction in Inappropriate therapy and mortality thru ICD
programming: 200 bpm or 170 bpm with delay in therapy reduced inappriopriate therapy
and all cause mortality
MADIT I - Correct Answer-ICDs reduce mortality compared to drugs
MADIT II - Correct Answer-ICD vs no therapy
ICD reduces mortality by 31%
Pts with prior MI, reduced LV function
EF<30%
SCD-HeFT - Correct Answer-ICD vs Amioderone
Amioderone alone is not effective in preventing SCD
ICD: 21% reduction in isc cardio
27% reduction in non-ics cardio
Pts with Class II and III
EF <35%
CASH - Correct Answer-ICD vs amio vs metoprolol
most ICDs benefit in first 5 years
MOST - Correct Answer-less afib with physiologic pacing (dual>single)
DAVID - Correct Answer-DDD vs VVI in ICDs iwth no pacing indication, EF<40%
DDD not superior and may be worse
COMPANION - Correct Answer-similar response with lateral, postlat, antlat LV lead
compare pacing, ICD, and drug therapy for HF
CRT good, CRTD even better
SMART AV - Correct Answer-QLV best >95 ms
Three studies that proved ICD > amiodorone for SCA survivors - Correct Answer-CASH
AVID (antiarrhythmic vs implantable defib)
CIDS
