Abstract 41: Liquid Convection Surface Cooling Leads to High Rate of Recovery of Post-VT/VF Patients
Introduction: Therapeutic hypothermia is an accepted standard of care for patients resuscitated from VT (ventricular tachycardia) and/or VF (ventricular fibrillation). Some prior studies have suggested that a faster time to target temperature may improve the chances of favorable neurological recovery.
Hypothesis: We hypothesized that rapid cooling of post VT/VF patients using liquid convection surface cooling would lead to a high rate of recovery of such patients, compared to historical results with slower cooling methods.
Methods: The Life Recovery Systems ThermoSuit System® was used to induce therapeutic hypothermia (approximately 33°C, maintained for 12 to 24 hours) in 37 post-resuscitation patients in 4 hospitals. Patient temperatures were monitored with an esophageal probe.
Results were retrospectively analyzed for cooling rates, cardiac rhythm of VT/VF, favorable neurologic recovery (CPC 1 or 2), and adverse events.
Results: Of the 37 patients, the mean cooling rate was 3.4 °C/hr (range 1.3-8.8). Of the 37 patients, 20 were resuscitated from VT or VF. Of these, 17 (85%) survived with favorable outcomes following the ThermoSuit treatment. There were no adverse events.
Conclusions: Rapid induction of therapeutic hypothermia with the ThermoSuit System was associated with a very high rate of favorable neurologic recovery and an absence of adverse events in post-VT/VF patients. When compared with results of similar studies of slower cooling methods, these results suggest an advantage of faster cooling methods for the treatment of post-VT/VF patients.
- © 2011 by American Heart Association, Inc.