1. Heart rate < 40 bpm or > 180 bpm 2. Systolic blood pressure < 80 mmHg or > 200 mmHg 3. Mean arterial blood pressure < 60 mmHg or > 120 mmHg 4. Peripheral capillary oxygen saturation (SpO2) < 88% 5. Pain score > 8/10 on visual analogue scale and unwillingness to proceed with RVOS intervention 6. Objective signs of tissue injury felt due to cuff inflation |