Nuclear Cardiology Case: A 63-year-old man, known multivessel CAD. Evaluate the severity of ischemia
A 63-year-old man, known multivessel CAD. To evaluate the severity of ischemia in this patient. SPECT myocardial perfusion testing was performed using Tc-99m-Sestamibi. Images representing myocardial perfusion were obtained at rest and peak stress .
LAD - 50% proximal stenosis
LCX - 1st marginal branch - 70% stenosis ,1st diagonal branch - 70-80% distal stenosis
Left ventricular ejection fraction = 57%
Click the button below to view answer:
- Stress protocol is Treadmill / Bruce
- Duration of stress is 12 min
- Peak heart rate (85%) is 85 --> 150 (85%=133)
- Systolic BP (basal --> peak) is 150 --> 160
- Double product (peak rate x BP) is 24,000
- Reason for termination is Dyspnea.
- Typical chest pain
- ECG finding is 1 mm ST depression
Figure 2 with labelled pathology for clarification |
Subsequent Coronary Angiography:
RCA - totally occluded, left to right collateralsLAD - 50% proximal stenosis
LCX - 1st marginal branch - 70% stenosis ,1st diagonal branch - 70-80% distal stenosis
Left ventricular ejection fraction = 57%
Click the button below to view answer:
Comments
Post a Comment
Drop your thoughts here, we would love to hear from you