Acute and Critical Care

Original Article

CPR/Resuscitation
Initial arterial pH predicts survival of out-of-hospital cardiac arrest in South Korea: Daun Jeong, Sang Do Shin, Tae Gun Shin, Gun Tak Lee, Jong Eun Park, Sung Yeon Hwang, Jin-Ho Choi; Acute Crit Care. 2025;40(3):444-451. Published online August 29, 2025; DOI: https://doi.org/10.4266/acc.001050

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Abstract PDF Supplementary Material: Background
Arterial pH reflects both metabolic and respiratory distress in cardiac arrest and has prognostic implications. However, it was excluded from the 2024 update of the Utstein out-of-hospital cardiac arrest (OHCA) registry template. We investigated the rationale for including arterial pH into models predicting clinical outcomes. Methods: Data were sourced from the Korean Cardiac Arrest Research Consortium, a nationwide OHCA registry (NCT03222999). Prediction models were constructed using logistic regression, random forest, and eXtreme Gradient Boosting frameworks. Each framework included three model types: pH, low-flow time, and combined models. Then the area under the receiver operating characteristic curve (AUROC) of each predicting model was compared. The primary outcome was 30- day death or neurologically unfavorable status (cerebral performance category ≥3). Results: Among the 15,765 patients analyzed, 92.2% experienced death or unfavorable neurological outcomes. The predicting performance of the models including pH (AUROC, 0.92–0.94) were comparable to the models including low-flow time in all frameworks (0.93–0.94) (all P>0.05). Inclusion of pH into low-flow time models consistently showed higher AUROCs than individual models in all frameworks (AUROC, 0.93–0.95; all P<0.05). Conclusions: The predicting performance of models including arterial pH was comparable to models including low-flow time, and addition of arterial pH into low-flow time models could increase the performance of the models. Key Words: blood pH; hydrogen-ion con

Case Report

Basic science and research
Spinal Cord Infarction in a Patient Undergoing Veno-arterial Extracorporeal Membrane Oxygenation: Beomsu Shin, Yang Hyun Cho, Jin-Ho Choi, Jeong Hoon Yang; Acute Crit Care. 2018;33(3):187-190. Published online August 31, 2018; DOI: https://doi.org/10.4266/acc.2016.00556

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11 Web of Science
11 Crossref

Spinal cord infarction is an uncommon, but serious disorder characterized by severe motor impairment and bladder and bowel dysfunction. Spinal cord infarction is likely caused by hypoperfusion at the thoraco-lumbar spinal cord due to diverse reasons. An 81-year-old woman without motor or neurologic dysfunction presented with cardiogenic shock due to acute myocardial infarction. We performed veno-arterial extracorporeal membrane oxygenation (VA ECMO) to maintain adequate organ perfusion. Lower limb weakness was noted on day 1 of ECMO support. Although the symptom persisted, we could not carry out further evaluation because of her hemodynamic instability. After removal of ECMO, spinal magnetic resonance imaging was performed and showed a signal abnormality extending from the level of T5 to the conus medullaris. The patient underwent conservative management, but eventually experienced limb paralysis. Herein, we report a case of spinal cord infarction in a patient with myocardial infarction during VA ECMO support.

Citations

Citations to this article as recorded by

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Michael A. Mazzeffi, Vidya K. Rao, Jeffrey Dodd-o, Jose Mauricio Del Rio, Antonio Hernandez, Mabel Chung, Amit Bardia, Rebecca M. Bauer, Joseph S. Meltzer, Sree Satyapriya, Raymond Rector, James G. Ramsay, Jacob Gutsche
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Michael A. Mazzeffi, Vidya K. Rao, Jeffrey Dodd-o, Jose Mauricio Del Rio, Antonio Hernandez, Mabel Chung, Amit Bardia, Rebecca M. Bauer, Joseph S. Meltzer, Sree Satyapriya, Raymond Rector, James G. Ramsay, Jacob Gutsche
Anesthesia & Analgesia.2021; 133(6): 1459. CrossRef
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European Heart Journal - Case Reports.2021;[Epub] CrossRef

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