The primary objective of this study is to assess the impact of a combined protocol of subanesthetic ketamine infusions (SKI) and bilateral cervical sympathetic blocks (CSB) on aging, as measured by the GrimAge epigenetic clock.~The secondary objective of this study is to assess the impact of this treatment paradigm on PTSD and mental health, as measured over a 6 month time period using the following questionnaires: Post-traumatic Stress Disorder Checklist (PCL-5), Patient Health Questionnaire 9 (PHQ-9), Depressive Symptom Index-Suicidality Subscale (DSI-SS), Generalized Anxiety Disorder 7-item (GAD-7), and Neurobehavioral Symptom Inventory (NSI).~The tertiary objectives of the study are to investigate if PTSD is associated with significantly reduced free testosterone levels and increased C-reactive protein (CRP) levels.
The purpose of this study is to examine measures of GrimAge clock in SOF members undergoing treatment for PTSD/TBI using CSB.