66 year old male patient monitored during transurethral prostrate resection. Patient has a history of coronary artery disease, mitral regurgitation, a ventricular septal defect, and a ventricular aneurysm
Rhythm analysis shows sinus bradycardia with muscle tremor.
This encounter shows a slow rate just below 60 bpm, with a regular rhythm and normal P waves. This is sinus bradycardia. Additionally, muscle tremor can be seen. This presents as 'noise' in the rhythm. It can be easy to confuse muscle tremor with the 'flutter waves' seen in atrial fibrillation. However, the rhythm and rate can help you to rule out AFib. Noise is also often caused by patient movement.
Source: PhysioNet MGH034