Effects of High-Intensity, Low-Frequency Periodic rTMS Over the Right Dorsolateral Prefrontal Cortex on Cardiac Autonomic Regulation in Women With Recurrent Pregnancy Loss and Anxiety: A Proof-of-Concept rTMS-ECG Clinical Trial ( NEURO-CARD)

The eligible participants will undergo an intensity sweep consisting of six stimulation trains over the right dorsolateral prefrontal cortex (DLPFC), with stimulation intensities ranging from 100% to 150% of the individual resting motor threshold (RMT), increasing in 10% increments. Each train will last 60 seconds, comprising 40 seconds of active rTMS at 1 Hz and a 20-second intertrain interval (ITI). Synchronous electrocardiogram (ECG) data will be continuously recorded throughout the entire procedure.