Kosin Medical Journal

Case reports

Cardiovascular collapse during transcatheter aortic valve replacement in monitored anesthesia care using an end-tidal carbon dioxide monitor: a case report: Wonjin Lee, Jaewoo Suh; Received June 29, 2023 Accepted October 16, 2023 Published online January 2, 2024; DOI: https://doi.org/10.7180/kmj.23.134 [Epub ahead of print]

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Abstract PDF PubReader ePub: Capnography is commonly used to monitor respiration during general anesthesia. However, it has limited utility in patients with respiratory distress during sedation. This case report examines capnography use in a transcatheter aortic valve replacement procedure performed on an elderly woman with severe aortic stenosis. A 73-year-old woman with a history of non-ST-elevation myocardial infarction and congenital heart failure presented with severe dyspnea caused by severe aortic stenosis. Transcatheter aortic valve replacement was preferred over surgery due to her comorbidities. Monitored anesthesia care was administered with a capnogram. During the procedure, the patient was sedated with remimazolam, maintaining a bispectral index range of 60–80 and a score of 2 on the Modified Observer’s Assessment of Alertness/Sedation scale. Although irregular breathing patterns and a gradual decrease in oxygen saturation were observed following remimazolam infusion, the patient’s respiration eventually stabilized. However, the patient experienced cardiovascular collapse 45 minutes after sedation began. The arterial carbon dioxide pressure measured by arterial blood gas analysis performed just before resuscitation was 68.4 mmHg. After one cycle of resuscitation, the patient recovered. The procedure was successfully performed under general anesthesia, which was replaced with monitored anesthesia care during resuscitation. Although most monitoring devices have similar utility for both general anesthesia and sedation, capnography has limitations for evaluating respiration during sedation, especially for patients with respiratory distress. Therefore, anesthesiologists or medical staff who provide sedation should not neglect periodical arterial carbon dioxide pressure observations via other methods, such as arterial blood gas analysis.

Targeted temperature management in a patient with suspected hypoxic-ischemic brain injury after successful resuscitation from cardiac arrest: a case report: Christine Kang, Won Yong Lim, Young-hoon Jung, Jiseok Baik; Kosin Med J. 2023;38(2):144-150. Published online December 19, 2022; DOI: https://doi.org/10.7180/kmj.22.130

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Abstract PDF PubReader ePub: Hypoxic-ischemic brain injury (HIBI) after cardiac arrest (CA) is a leading cause of mortality and long-term neurological disorders in survivors. Targeted temperature management (TTM) has been rigorously studied as a way to improve results compared to a normal body temperature for preventing secondary damage after HIBI. We report a case of successful TTM in a patient who was suspected to have HIBI after resuscitation from cardiovascular collapse due to respiratory failure during elective surgery under brachial plexus block with dexmedetomidine and remifentanil infusion. A 27-year-old male patient developed CA due to apnea during orthopedic surgery. TTM was performed in the surgical intensive care unit for 72 hours after resuscitation, and the patient recovered successfully. TTM application immediately after resuscitation from CA in patients with suspected HIBI may be an appropriate treatment.

Original article

Effects of Changes in Inspiratory Time on Inspiratory Flowrate and Airway Pressure during Cardiopulmonary Resuscitation: A Manikin-Based Study: Jung Ju Lee, Su Yeong Pyo, Ji Han Lee, Gwan Jin Park, Sang Chul Kim, Hoon Kim, Suk Woo Lee, Young Min Kim, Hyun Seok Chai; Kosin Med J. 2021;36(2):100-108. Published online December 31, 2021; DOI: https://doi.org/10.7180/kmj.2021.36.2.100

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Abstract PDF PubReader ePub: Objectives
Given that cardiopulmonary resuscitation (CPR) is an aerosol-generating procedure, it is necessary to use a mechanical ventilator and reduce the number of providers involved in resuscitation for in-hospital cardiac arrest in coronavirus disease (COVID-19) patients or suspected COVID-19 patients. However, no study assessed the effect of changes in inspiratory time on flowrate and airway pressure during CPR. We herein aimed to determine changes in these parameters during CPR and identify appropriate ventilator management for adults during CPR.
Methods
We measured changes in tidal volume (Vt), peak inspiratory flow rate (PIFR), peak airway pressure (Ppeak), mean airway pressure (Pmean) according to changes in inspiratory time (0.75 s, 1.0 s and 1.5 s) with or without CPR. Vt of 500 mL was supplied (flowrate: 10 times/min) using a mechanical ventilator. Chest compressions were maintained at constant compression depth (53 ± 2 mm) and speed (102 ± 2/min) using a mechanical chest compression device.
Results
Median levels of respiratory physiological parameters during CPR were significantly different according to the inspiratory time (0.75 s vs. 1.5 s): PIFR (80.8 [73.3 – 87.325] vs. 70.5 [67 – 72.4] L/min, P < 0.001), Ppeak (54 [48 – 59] vs. 47 [45 – 49] cmH₂O, P < 0.001), and Pmean (3.9 [3.6 – 4.1] vs. 5.7 [5.6 – 5.8] cmH₂O, P < 0.001).
Conclusions
Changes in PIFR, Ppeak, and Pmean were associated with inspiratory time. PIFR and Ppeak values tended to decrease with increase in inspiratory time, while Pmean showed a contrasting trend. Increased inspiratory time in low-compliance cardiac arrest patients will help in reducing lung injury during adult CPR.

Case reports

Subcapsular Hepatic Hematoma after Cardiopulmonary Resuscitation: Song-I Lee; Kosin Med J. 2020;35(2):156-162. Published online December 31, 2020; DOI: https://doi.org/10.7180/kmj.2020.35.2.156

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Abstract PDF PubReader ePub: Cardiopulmonary resuscitation (CPR) is an important life-saving procedure in emergency care. However, CPR is associated with various complications. A 41-year-old man was admitted to the intensive care unit after CPR. A sudden decrease in the blood pressure and hematocrit level was recorded. An abdominal computed tomography (CT) showed a large subcapsular hematoma in the left lobe of the liver. With conservative treatment, the hematoma reduced in size, but it was later managed with percutaneous drainage. The patient recovered and was discharged. We obtained a favorable outcome with conservative, nonsurgical treatment. Subcapsular hepatic hematoma is a potential life-threatening complication that should be considered in CPR survivors.

Mallory-Weiss Tear After Cardiopulmonary Resuscitation in a Patient Suffering From Acute Myocardial Infarction: Jin Seok Yu, Woo Suk Ko, June Hyun Kim, Kwang Uk Bae; Kosin Med J. 2018;33(2):235-239. Published online December 31, 2018; DOI: https://doi.org/10.7180/kmj.2018.33.2.235

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Abstract PDF PubReader ePub

A report of a 79 year old male patient suffering from acute myocardial infarction with Mallory-Weiss tear after successful cardiopulmonary resuscitation(CPR) by emergency medical technician in the swimming pool is presented. Successful percutaneous coronary intervention(PCI) was done after appropriate transfusion. The patient survived and discharged without major complications after admitting 11days in the hospital. Importance of CPR in AMI patient is reiterated as complication such as Mallory-Weiss tear may arise.

Citations

Citations to this article as recorded by

Adverse prognostic factors for rescuing patients with acute myocardial infarction–induced cardiac arrest receiving percutaneous coronary intervention under extracorporeal membrane oxygenation
Jianxi Ye
Hong Kong Journal of Emergency Medicine.2023; 30(3): 152. CrossRef

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