Acute and Critical Care

Jae Wook Choi

4 Articles

A Case of Exertional Heat Stroke with Acute Hepatic Failure Treated with Plasma Exchange: A Case Report: Young Joo Han, Jae Wook Choi, Woo Jin Chung, Dong In Suh, June Dong Park; Korean J Crit Care Med. 2012;27(2):130-133.; DOI: https://doi.org/10.4266/kjccm.2012.27.2.130

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Heat stroke is a hyperthermia-induced systemic inflammatory response which may cause multiorgan dysfunction syndrome. We report a case of exertional heat stroke with acute hepatic failure in an 11-year-old boy. He initially presented hyperthermia and unconsciousness, which occurred after heavy exercise. His neurological state improved after terminating the hyperthermia by intensive cooling therapy. However, 24 hours after the initial recovery, his neurological state deteriorated again as acute hepatic injury progressed rapidly. We applied 4 times of total plasma exchange as an immunotherapy for systemic inflammatory response syndrome and acute hepatic failure expecting it to remove endogenous inflammatory factors and hepatotoxic cytokines. Following the plasma exchange, his mental state became normal and serial laboratory findings indicated improvement. He made a complete recovery without sequelae. We experienced successful treatment regarding exertional heat stroke with acute hepatic failure using plasma exchange.

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Therapeutic plasma exchange in the treatment of exertional heat stroke and multiorgan failure
Vimal Master Sankar Raj, Amanda Alladin, Brent Pfeiffer, Chryso Katsoufis, Marissa Defreitas, Alicia Edwards-Richards, Jayanthi Chandar, Wacharee Seeherunvong, Gwenn McLaughlin, Gaston Zilleruelo, Carolyn L. Abitbol
Pediatric Nephrology.2013; 28(6): 971. CrossRef

Multiple Bilateral Perfusion Defects in the Infant with Acute Viral Bronchiolitis: A Case Report: Woo Jin Chung, Jae Wook Choi, Young Ju Han, June Dong Park; Korean J Crit Care Med. 2011;26(4):272-275.; DOI: https://doi.org/10.4266/kjccm.2011.26.4.272

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Abstract PDF: Acute viral bronchiolitis (AVB) is an obstructive lung disease which frequently develops in infants and the most common functional involvement is a V/Q ratio change caused by small airway obstruction. We report a case showing the redistribution of pulmonary blood flow by multiple perfusion scan defects in an infant with AVB. A 15 month-old male infant visited ER due to respiratory difficulty. He manifested decreased lung sound in the left lung field, hyperinflation of the left lung on chest x-ray, and metabolic acidosis in blood gas analysis. A perfusion scan showed multiple perfusion defects of both lungs without the evidence of pulmonary embolism on a following cardiac CT and echocardiography. Human Rhinovirus PCR in a nasopharyngeal aspirate was positive. With supportive care, the symptom was resolved in 4 days. AVB can show multiple perfusion defects by the redistribution of pulmonary blood flow of which the direction is opposite to the usual distribution of pulmonary blood flow in children.

Atelectasis and the Risk Factors in the Patients Admitted to Pediatric Intensive Care Unit: Woo Jin Chung, Jae Wook Choi, Young Ju Han, Ju Kyung Lee, Dong In Suh, Young Yull Koh, June Dong Park; Korean J Crit Care Med. 2011;26(4):238-244.; DOI: https://doi.org/10.4266/kjccm.2011.26.4.238

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Abstract PDF: BACKGROUND
Atelectasis is a state of a collapsed and non-aerated region of the lung parenchyma, which is otherwise normal. This condition is usually associated with pulmonary disorders. The purpose of this study is to analyze the incidence and risk factors of atelectasis in patients admitted to the pediatric intensive care unit (PICU).
METHODS
We retrospectively analyzed the clinical characteristics and chest radiography of 280 PICU patients under 18 years old. We analyzed the incidence and pattern of atelectasis and compared the incidence according to the phase and mode of mechanical ventilation. We compared the incidence of ventilator care need and respiratory disease in 93 atelectasis patients.
RESULTS
Atelectasis incidence was 33.2%. The age (4.9 +/- 4.4 years) was younger and the admission-duration (17.8 +/- 25.1 days) was significantly longer in atelectasis patients (p < 0.01). Ventilator care need and respiratory disease in atelectasis patients (86.0%, 66.7% respectively) was significantly higher than in non-atelectasis patients (62.6%, 43.3% respectively) (p < 0.01). Atelectasis incidence in ventilator-required patients and respiratory-diagnosed patients (40.6%, 43.4% respectively) was significantly higher than that in non ventilator-required patients and non respiratory-diagnosed patients (15.7%, 22.6% respectively) (p < 0.01). Atelectasis was more common in the right upper lobe (55.6%) and during or after ventilator care (62.6%) (p < 0.05). Atelectasis incidence in ventilator care did not differ between the assist-control and intermittent mandatory ventilation modes.
CONCLUSIONS
In the PICU, atelectasis incidence was higher in patients with ventilator care and respiratory disease. Atelectasis was more common in the right upper lobe and in the phase after ventilator initiation. Atelectasis incidence in ventilator care did not differ between ventilation modes.

Predictors of Mortality and Complication in Pediatric Patients Who Require Continuous Renal Replacement Therapy in Pediatric Intensive Care Unit: Jae Wook Choi, Woo Jin Chung, Young Joo Han, Ju Kyung Lee, Dong In Suh, June Dong Park, Young Yull Koh; Korean J Crit Care Med. 2011;26(3):171-176.; DOI: https://doi.org/10.4266/kjccm.2011.26.3.171

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BACKGROUND
The objective of this study is to analyze the factors associated with mortality and complication in children requiring continuous renal replacement therapy (CRRT) in a pediatric intensive care unit.
METHODS
We retrospectively analyzed 96 patients who required CRRT at a pediatric intensive care unit in Seoul National University Hospital between April 2005 and April 2011. We evaluated the clinical features, diagnosis, mortality risk factors and complications related to CRRT.
RESULTS
Univariate and multivariate analyses were performed to analyze the mortality risk factors of patients requiring CRRT. The overall mortality was 56.3%, the median age was 8 years, and the ages ranged from 4 days to 22 years. The median weight of the patients was 7.9 kg, and the weights ranged from 3.6-72.9 kg. 16 patients were diagnosed with primary renal disease, and the remainder with other underlying diseases. Mortality was higher in children who received stem cell transplantation and in children with a diagnosis of imunologic disease and neurologic disease. The Pediatric Risk of Mortality (PRISM) III score at initiating CRRT was 17.8 +/- 8.9 and the degree of fluid overload at CRRT (FO%) was 12.9 +/- 16.0. The PRISM III score at the start of CRRT and low uric acid level were the factors associated with an increased risk of mortality. Of the 96 children, 13 (13.53%) presented problems of venous catheterization. Hypotension during connection to CRRT was detected in 28 patients (29.2%). Clinically significant hemorrhage occurred in 10 patients (10.4%).
CONCLUSIONS
Children who require CRRT have a high mortality rate. The higher score of PRISM III at the starting time of CRRT and the lower uric acid level are the factors associated with a higher mortality. The most frequent complication of CRRT was hypotension on connection to CRRT.

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Continuous Renal Replacement Therapy in the Neonatal Intensive Care Unit: A Single-Center Study
Moon-yeon Oh, Byong Sop Lee, Seong-Hee Oh, Hee Jin Jang, Hyun-Jeong Do, Ellen Ai-Rhan Kim, Ki-Soo Kim, Joo Hoon Lee, Young Seo Park, Beom-Hee Lee, Han-Wook Yoo
Neonatal Medicine.2014; 21(4): 244. CrossRef

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