PMID- 34984495 OWN - NLM STAT- MEDLINE DCOM- 20220616 LR - 20220616 IS - 1863-9941 (Electronic) IS - 1863-9933 (Linking) VI - 48 IP - 3 DP - 2022 Jun TI - Open chest selective aortic arch perfusion vs open cardiac massage as a means of perfusion during in exsanguination cardiac arrest: a comparison of coronary hemodynamics in swine. PG - 2089-2096 LID - 10.1007/s00068-021-01810-0 [doi] AB - AIM: To describe and compare the aortic-right atrial pressure (AoP-RAP) gradients and mean coronary perfusion pressures (CPPs) generated during open chest selective aortic arch perfusion (OCSAAP) with those generated during open cardiac massage (OCM) in hypovolemic swine. METHODS: Ten male Hanford swine utilized in a prior poly-trauma study were included in the study. Animals were rendered hypovolemic via a 30% volume bleed. Upon confirmation of death, animals underwent immediate clamshell thoracotomy and aortic cross-clamping followed by 5 min of OCM. A catheter suitable for OCSAAP was then inserted into the aorta and animals underwent 1 min of OCSAAP at a rate of 10 mL/kg/min. Aortic and right atrial pressures were recorded continuously using solid-state blood pressure catheters. Representative 10-s intervals from each resuscitation method were extracted. Hemodynamic parameters including AoP-RAP gradients and CPPs were calculated and compared. RESULTS: At baseline, time from death to intervention was significantly shorter for OCM. However, mean CPPs and AoP-RAP gradients were significantly higher in animals undergoing OCSAAP. 98% of OCSAAP segments had a mean CPP > 15, compared to 35% of OCM intervals. While OCM had a significant negative correlation between time to intervention and maximum CPP, this correlation was not significant for OCSAAP. CONCLUSION: OCSAAP generates favorable and potentially time-resistant pressure gradients when compared to those generated by OCM. Further investigation of the technique of OCSAAP is warranted, as it may have potential utility as a therapy during resuscitative thoracotomy (RT). CI - (c) 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany. FAU - Edwards, Joseph AU - Edwards J AUID- ORCID: 0000-0001-7462-8456 AD - Adams Cowley Shock Trauma Center, University of Maryland Medical System, 22 S. Greene Street, Baltimore, MD, 21201, USA. FAU - Abdou, Hossam AU - Abdou H AD - Adams Cowley Shock Trauma Center, University of Maryland Medical System, 22 S. Greene Street, Baltimore, MD, 21201, USA. FAU - Patel, Neerav AU - Patel N AD - Adams Cowley Shock Trauma Center, University of Maryland Medical System, 22 S. Greene Street, Baltimore, MD, 21201, USA. FAU - Lang, Eric AU - Lang E AD - Adams Cowley Shock Trauma Center, University of Maryland Medical System, 22 S. Greene Street, Baltimore, MD, 21201, USA. FAU - Richmond, Michael J AU - Richmond MJ AD - Adams Cowley Shock Trauma Center, University of Maryland Medical System, 22 S. Greene Street, Baltimore, MD, 21201, USA. FAU - Rasmussen, Todd E AU - Rasmussen TE AD - Uniformed Services University of the Health Sciences, Bethesda, MD, USA. FAU - Scalea, Thomas M AU - Scalea TM AD - Adams Cowley Shock Trauma Center, University of Maryland Medical System, 22 S. Greene Street, Baltimore, MD, 21201, USA. FAU - Morrison, Jonathan J AU - Morrison JJ AD - Adams Cowley Shock Trauma Center, University of Maryland Medical System, 22 S. Greene Street, Baltimore, MD, 21201, USA. jonathan.morrison@som.umaryland.edu. LA - eng GR - HU00011920072/Uniformed Services University of the Health Sciences/ PT - Journal Article DEP - 20220104 PL - Germany TA - Eur J Trauma Emerg Surg JT - European journal of trauma and emergency surgery : official publication of the European Trauma Society JID - 101313350 SB - IM MH - Animals MH - Aorta, Thoracic MH - Exsanguination MH - *Heart Arrest/therapy MH - *Heart Massage/methods MH - Hemodynamics MH - Humans MH - Hypovolemia MH - Male MH - Perfusion MH - Swine OTO - NOTNLM OT - Cardiac arrest OT - Cardiac massage OT - Exsanguination OT - Resuscitative thoracotomy OT - Selective aortic arch perfusion EDAT- 2022/01/06 06:00 MHDA- 2022/06/18 06:00 CRDT- 2022/01/05 06:02 PHST- 2021/06/09 00:00 [received] PHST- 2021/10/25 00:00 [accepted] PHST- 2022/01/06 06:00 [pubmed] PHST- 2022/06/18 06:00 [medline] PHST- 2022/01/05 06:02 [entrez] AID - 10.1007/s00068-021-01810-0 [pii] AID - 10.1007/s00068-021-01810-0 [doi] PST - ppublish SO - Eur J Trauma Emerg Surg. 2022 Jun;48(3):2089-2096. doi: 10.1007/s00068-021-01810-0. Epub 2022 Jan 4.