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Complications & Re-warming

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Presentation on theme: "Complications & Re-warming"— Presentation transcript:

1 Complications & Re-warming
Quiz Definition & Terminology 1. What is the most comparable site to the PA for measuring core body temperature? esophageal bladder rectal tympanic History & Background Cases & Studies Mild Hypothermia Who Else to Cool 2. When body temperature is reduced below 30°C, substantial risk emerges for cardiac arrhythmias and respiratory arrest as well as VF and AF T F How to Cool Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

2 Complications & Re-warming
Quiz Definition & Terminology 3. A frequently cited threshold when body temperature is dropping for shivering is 33°C. T F History & Background Correct answer: 35.5°C Cases & Studies 4. EKG abnormality(-ies) associated with temperature in the range of °C are bradycardias prolonged PR interval prolonged QRS prolonged QT all of the above none of the above Mild Hypothermia Who Else to Cool How to Cool Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

3 Complications & Re-warming
Quiz 5. Patients undergoing cerebral aneurysm clipping had no greater operative blood loss at °C than those maintained at °C. T F Definition & Terminology History & Background Cases & Studies Mild Hypothermia 6. PaCO2 values obtained from the blood gas machine directly reflect PCO2 during hypothermia. T F Who Else to Cool Correct answer: Use alpha-stat How to Cool 7. Evidence is largely unsupportive of mild hypothermia effects on neuroinflammation. T F Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

4 Complications & Re-warming
Quiz 8. The beneficial effects of therapeutic hypothermia on ICP have been repeatedly shown in clinical TBI and CVA. T F Definition & Terminology History & Background Cases & Studies 9. Concerning survival without neurological damage, the HACAS group in Austria and the Australian Bernard group using hypothermic treatment of VF cardiac arrest have shown 10-14% better outcomes 15-24% better outcomes 25-34% better outcomes 35-44% better outcomes Mild Hypothermia Who Else to Cool How to Cool Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

5 Complications & Re-warming
Quiz Definition & Terminology 10. The quality of evidence supporting therapeutic hypothermia in non VF cardiac arrest is very high. T F History & Background Cases & Studies Mild Hypothermia 11. Therapeutic hypothermia significantly reduces disability in perinatal encephalopathy. T F Who Else to Cool How to Cool 12. The limited data of non-randomized trials in malignant stroke are not sufficient to recommend therapeutic hypothermia. T F Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

6 Complications & Re-warming
Quiz Definition & Terminology 13. Large clinical randomized studies have conclusively demonstrated that therapeutic hypothermia before PTCA limits all types of myocardial infarct size. T F History & Background Only with AWMI Cases & Studies 14. During cooling shivering stops at 35°C 34°C 36°C Mild Hypothermia Who Else to Cool How to Cool 15. Which should you use to adjust ventilation? alpha-stat PH-stat which adjusts for temperature Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

7 Complications & Re-warming
Quiz Definition & Terminology 16. Overcooling is detrimental in cardiac arrest patients. T F History & Background Cases & Studies 17. Hyperthermic overshoot is not deleterious in TBI and CVA patients. T F Mild Hypothermia Correct answer: causes rebound ICP Who Else to Cool 18. Which of the following re-warming strategies are recommended? re-warming at a rate no faster than 1°C per 2 hours in CA re-warming at a rate no faster than 1°C per 4 hours in TBI re-warming at a rate even slower in severe CVA not A, B, and C all A, B, and C How to Cool Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

8 Complications & Re-warming
Quiz 19. There are no significant coagulation or clotting problems at 34° or 33°C in Trauma patients in the therapeutic hypothermia literature. T F Definition & Terminology History & Background Cases & Studies 20. Cooling during CPR reduces the threshold for ventricular defibrillation. T F Mild Hypothermia Who Else to Cool 21. 2L IV 4°C Saline does the following requires muscular skeletal blocking agents requires sedation lowers temperature (core) up to 1.7°C all of the above none of the above How to Cool Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

9 Complications & Re-warming
Quiz 22. There have been no prospective randomized clinical trails of therapeutic controlled hypothermia in Trauma patients (TBI) with hemorrhagic shock. T F Definition & Terminology History & Background Cases & Studies 23. There are NO studies of hypothermic use in acute spinal cord injury to support systemic therapeutic hypothermia as an option. T F Mild Hypothermia Who Else to Cool 24. Urinary bladder probe temperature is more reliable than rectal accuracy is ± 0.4 2-4°C lower than brain temp all of the above none of the above How to Cool Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

10 Complications & Re-warming
Quiz 25. Rectal temperature probe is unreliable may have variable position can perforate is equal to PA all of the above A,B, and C only none of the above Definition & Terminology History & Background Cases & Studies Mild Hypothermia Who Else to Cool 26. PA temperature probe or esophageal probe is the gold standard In lieu of PA, is best measured in the distal ¼ of the esophagus frequently inserted in an esophageal ET tube to prevent coiling all of the above none of the above How to Cool Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

11 Complications & Re-warming
Quiz 27. There is no reduction in cytochrome P450 drug metabolism during hypothermia. T F Definition & Terminology History & Background Cases & Studies 28. Hypertension appears to be a very common complication of re-warming in children with TBI. T F Mild Hypothermia Correct answer: hypotension Who Else to Cool 29. Hypothermia has been found to be therapeutic in all but one of these: VF hyperthermic CVA perinatal asphyxia TBI OHS How to Cool Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

12 Complications & Re-warming
Quiz Definition & Terminology 30. There are specific drug dosage adjustments available for each °C of hypothermia. T F History & Background Cases & Studies Mild Hypothermia 31. Pancuronuim does not have a receptor effect in humans. T F Who Else to Cool How to Cool 32. Serum neuron-specific enolase (NSE) is a biochemical marker that can be measured to reflect brain damage. T F Complications & Re-warming Discussion and Test Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

13 Complications & Re-warming
Quiz 33. A landmark paper by Woolf .et.al. supports cooling as soon as possible and quickest to target temperature. T F Definition & Terminology History & Background Cases & Studies 34. Cooling method rate of cooling (°C/hr) ice packs to groin cool air alcohol + cover water circulating blanket Medevance adhesive pads total body suit MTRF, Akina Total Body Blanketrol Cincinnati Subzero KCI cold air total body tent Complete patient immersion ThermoSuit Emcools Pre-refrigerated graphite/H2O cube pads with adhesive Cap Fricap IV Saline 2L over 30 minutes 4°C 0.3°C / hr Mild Hypothermia 0.3°C / hr 0.25°C / hr 0.3°C / hr Who Else to Cool 1 – 1.2°C / hr 0.9°C / hr How to Cool 1.3°C / hr 0.7°C / hr Complications & Re-warming 3°C / hr 3.3°C / hr Discussion and Test 0.5°C / hr 1.7°C / hr Advanced Hypothermic Life Support Dr. Eric Harrison, MD. – American Society of Hypothermic Medicine

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