Excellent - now the full picture is complete. Here is the integrated analysis:
ETT (Exercise Tolerance Test) - Md. Sadik Uddin Ahmed
Date: 06/08/2026 | Protocol: Bruce | Indication: Evaluation of chest pain | Clinical diagnosis on referral: IHD
ETT Data
| Stage | Speed | Inclination | HR | BP | Symptoms |
|---|
| Resting | - | - | 69 | 130/80 | Nil |
| Stage I | 1.7 mph | 10% | 106 | 140/80 | Nil |
| Stage II | 2.5 mph | 12% | 125 | 140/80 | Nil |
| Stage III | 3.4 mph | 14% | 151 | 160/90 | Target HR achieved |
| Recovery 2 min | | | 104 | 160/90 | Nil |
| Recovery 4 min | | | 98 | 140/80 | Nil |
| Recovery 6 min | | | 91 | 130/80 | Nil |
| Recovery 8 min | | | 89 | 130/80 | Nil |
- Peak HR: 160 bpm = 91% of age-predicted max (175 bpm) - adequate workload achieved
- Target HR (85%): 148 bpm - surpassed
- METS achieved: 10.40 - excellent functional capacity
- Total exercise time: 9 min 07 sec
- Reason for termination: Target HR achieved (not symptoms, not ST changes)
ETT Conclusion (from report):
✅ Good exercise capacity
✅ Good BP response to exercise
✅ Negative for exercise-induced myocardial ischaemia
No chest pain, no dyspnoea, no arrhythmia during exercise or recovery. No ST depression during exercise or at recovery.
FINAL INTEGRATED DIAGNOSIS
Putting together all three investigations:
| Investigation | Finding |
|---|
| Resting ECG | Normal sinus rhythm, no ST/T changes |
| Echo (2D + M-mode) | LVEF 60%, no RWMA, normal chambers, normal valves |
| ETT (Bruce, 9:07 min, 10.4 METS) | Negative for ischaemia, target HR achieved |
Diagnosis: Non-cardiac chest pain / Chest pain with no evidence of ischaemic heart disease
Despite the referral diagnosis of "IHD" on the ETT request, the complete cardiac workup is entirely negative:
- No ischaemia on stress testing (achieved >85% max HR, 10.4 METS - excellent capacity)
- No structural abnormality on echo
- No electrical abnormality on resting ECG
At 10.4 METS, this patient has above-average functional capacity for a 45-year-old male (>10 METS is considered excellent). This level of exercise performance makes significant obstructive CAD very unlikely as the cause of his chest pain.
Next Step to Consider:
The chest pain in this patient most likely has a non-cardiac origin - possible causes include:
- GERD / oesophageal spasm (most common cause of non-cardiac chest pain)
- Musculoskeletal (costochondritis)
- Anxiety / panic disorder
- Pulmonary (if any respiratory symptoms)
A GI evaluation (especially for GERD) would be a reasonable next step given the completely negative cardiac workup.