Sequential events of asystole and cranial nerve monitor induced narrow QRS complex ECG artefacts: An uncommon combination during a common neurosurgery

ECG interference due to nasopharyngeal temperature probe masquerading as ventricular tachycardia - A case study

“…Energy radiation from electrical devices, electromagnetic equipment, radiofrequency, piezoelectric signals, or electrical stimulation can enter via broken or poorly shielded leads. [ 1 , 2 , 4 , 5 ] They are corrected with the use of a notch filter. [ 1 , 2 ] However each of these filters have a ceiling limit, beyond which noise, even if present, cannot be filtered.…”