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Yoshimiya, Motoo Department of Disaster and Emergency Medicine, Tottori University Hospital / Division of Forensic Medicine, Faculty of Medicine, Tottori University
Ueda, Takahiro Department of Disaster and Emergency Medicine, Tottori University Hospital Researchers DB KAKEN
Ogoshi, Tomofumi Department of Disaster and Emergency Medicine, Tottori University Hospital Researchers DB
Zangpo, Dawa Division of Forensic Medicine, Faculty of Medicine, Tottori University
Nakatome, Masato Division of Forensic Medicine, Faculty of Medicine, Tottori University Researchers DB KAKEN
chest compression hemodynamics
postcardiac arrest interval
Background: Intracardiac hypostasis is frequently observed in postmortem computed tomography (PMCT) of acute deaths, and it becomes clearer as the postmortem interval increases. To determine the postcardiac arrest interval (PCAI), we evaluated densities of the right and left atria [anterior part of the right atrium (AR) and posterior part of the left atrium (PL)] using postmortem computed tomographic images. Methods: A total of 184 patients were included in the study. Patients with return of spontaneous circulation and those with final alive confirmation time over 1 hour were excluded. We evaluated the density of AR and PL at the level of the right inferior pulmonary vein entry to the left atrium. We defined the interval between the estimated cardiac arrest time and the postmortem CT time as the PCAI. Results: There was a negative correlation between AR and PCAI in 59 patients who died owing to cardiovascular disease. The regression equation (PCAI = −1.725 × AR + 132.95) was obtained based on this result. There was no correlation between PL and PCAI. Conclusion: The result suggests that the density of the anterior part of the right atrium decreases as postcardiac arrest interval increases in the case of cardiovascular disease. The regression equation may be used as an additional method to estimate postcardiac arrest interval.
Tottori University Medical Press
Yonago Acta Medica
|Current Journal Title||
Yonago Acta Medica
(C) 2022 Tottori University Medical Press.
Yonago Acta Medica. 2022, 65(1), 8-13. doi10.33160/yam.2022.02.001
Faculty of Medicine/Graduate School of Medical Sciences/University Hospital