Appendix. Magnet Responses of the Pms

Pacing Magnet rate output Specific feature of the magnet Magnet rate behavior A-V delay (if Pacemaker models during response (bpm) between applicable) magnet BOL and IRE application Threshold Margin Test (TMT): first 3 Adapta, EnPulse, beats at 100/min (AV delay 100ms) Insync CRT-P, Kappa, and faster than the following spikes. Prodigy, Sensia, Sigma, The third spike(s) has a decreased Thera, Versa pulse width (-25%) or amplitude (- Same than Fixed: Medtroni 20%) 85 (BOL) or 65 Same than programmed decrease by c (ERI) programmed (same spike steps amplitude) Advisa, Consulta CRT- P, EnRhythm, Ensura, None Revo, Syncra CRT-P

ADx, Affinity, Affirmity, Emprise, Entity, Fidelity, Between 98.6 Frontier/II CRT-P, Variable. If (BOL) and Identity, Integrity, Magnet rate 98.6 autocapture 86.3 (ERI) and activated: Microny, Multilog, Autocapture test less higher than Regency, Sensolog, at magnet St Jude Gradual programmed Sensorithm, Verity, withdrawal (if 120ms medical decrease (larger Victory, Zephyr autocapture spikes). activated) Otherwise Between 100 same than Accent, Anthem CRT-P (BOL) and 85 programmed (ERI) and less

Advantio, Altrua, Decreased amplitude of the third Contak CRT-P, spike (s) (due to pulse width reduced Same than Discovery/II, Equio, 100 (BOL), 90 Fixed: Boston by 50%, inducing a smaller spike programmed Ingenio, Inliven CRT-P, (intermediate decrease by 100ms Scientific amplitude in digital ECG devices). (same spike Insigna, Invive CRT-P, ) or 85 (ERI) steps Note: Medtronic TMT has to be amplitude) Meridian/II, Pulsar, excluded first. Pulsar Max/II Actros/+, Axios, Cylos, Diplos, Dromos, Effecta, Entovis, Magnet response limited to 10 beats 100ms (or Same than Estella, Evia, Evia HFT in nominal (mode auto, can be Fixed: 90 (BOL) or 80 programmed programmed Biotronik CRT-P, Kairos, Innos, modified to async or off) : Magnet decrease by (ERI) AV delay if (same spike Logos, Philos/II/DRT, response < Magnet application (if steps shorter) amplitude) Physios, Protos, magnet placed ≥ 8s) Stratos CRT-P, Talos, Triplos At magnet withdrawal, 6 last High output: asynchronous beats at same magnet 5V/0.5ms Brio, Chorus, Esprit, rate but decreased spike amplitude (larger Opus, Reply, (due to output drop from 5V to Between 96 Sorin Gradual Same than spikes) Rhapsody, Symphony, programmed value) and short A-V (BOL) and 80 Group decrease programmed except for Talent, Talent MSP delay (95ms). Then two last (ERI) last beats CRT-P asynchronous beats at programmed after magnet rate (frequently invisible). Magnet removal response > Magnet application

Appendix. Magnet responses of the PMs