Acute and Critical Care

Case Reports

Nephrology
Continuous renal replacement therapy increased plasma cholinesterase activity in a case of acute organophosphate poisoning: In Ho Kwon, Jinwoo Jeong, Yuri Choi; Acute Crit Care. 2022;37(4):669-671. Published online November 16, 2021; DOI: https://doi.org/10.4266/acc.2021.00780

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Abstract PDF: Extracorporeal removal of organophosphate from blood has been proposed, but the efficacy of hemodialysis and hemoperfusion has not been established. We report a case of organophosphate poisoning in which continuous renal replacement therapy (CRRT) was applied with conventional indications and was found to increase plasma cholinesterase levels by hemodiafiltration. A 73-year-old male was found unconscious at home and was brought to the emergency department by ambulance. An empty bottle of Supracide insecticide, of which the active ingredient is methidathion, was found beside him. CRRT was initiated because he showed signs of oliguria and acidosis with an unstable hemodynamic condition. Although his condition improved temporarily after CRRT initiation, it subsequently deteriorated, and he died despite maximal supportive effort. His prefilter plasma cholinesterase levels remained at <200 U/L for 3 days, while his postfilter levels were 358 U/L 1 hour after CRRT initiation and they were 689 U/L 18 hours later. Our case suggests that CRRT might play a role in treating organophosphate poisoning by possibly eliminating organophosphate.

Toxicology
Methidathion Poisoning: Ki Hoon Kim, Se Hun Kim, Charles Her; Korean J Crit Care Med. 2017;32(4):363-369. Published online January 17, 2017; DOI: https://doi.org/10.4266/kjccm.2016.00073

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Although methidathion is an organophosphate insecticide, it is different from the other organophosphates in terms of toxicity. Because of its relatively high fat solubility, the apparent volume of methidathion distribution throughout the body is very high, indicating that hemoperfusion is not effective in removing this organophosphate from the body. Redistribution of methidathion from fat to blood can also occur when plasma levels diminish. Additionally, acetylcholinesterase aging, which is the loss of an alkyl side chain that prevents reactivation by oximes, is very rapid so that the effective reactivation by oximes is thwarted. Thus, methidathion’s effect on acetylcholinesterase inhibition is long lasting, particularly with a high dose. In addition to its parasympatholytic effect and ability to induce muscle paralysis, methidathion poisoning is associated with a profound and long-lasting circulatory collapse due to sympathetic ganglion blockade. This report presents the case of a 55-year-old man who accidentally ingested a high dose of methidathion. He later developed enteroinvasive aspergillosis infection-induced multiple bowel perforations on two separate occasions while on mechanical ventilator support, resulting in a fatal outcome. The renin-angiotensin axis activated by sympathetic ganglion blockade may have reduced the patient’s splanchnic blood flow, contributing to translocation of endotoxin. Also, the effect of excessive acetylcholine on non-neuronal acetylcholine receptors may have contributed to the development of fatal enteroinvasive aspergillosis in this patient.

Citations

Citations to this article as recorded by

A case report of acute kidney injury following organophosphate methidathion poisoning
Bilel Chefirat, Anissa Zergui, Haciba Rezk-Kallah
Toxicologie Analytique et Clinique.2022; 34(2): 121. CrossRef

Toxicology
Polyethylene Glycol (PEG-3350, Colyte) Poisoning due to Intra-Peritoneal Leakage in an Elderly Patient: Jae Hee Chung, Seok Chan Kim, Jun-Gi Kim; Korean J Crit Care Med. 2015;30(1):56-60. Published online February 28, 2015; DOI: https://doi.org/10.4266/kjccm.2015.30.1.56

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Abstract PDF

Polyethylene glycol (PEG)-3350 is the most frequently used lavage solution for bowel cleansing prior to colonoscopy or elective surgery because its large molecular weight means that it is poorly absorbed. However, if it leaks into the peritoneal cavity, complications may arise. Few published studies have assessed the absorption, distribution, metabolism and excretion of PEG. Moreover, no published clinical data regarding complications due to the intra-peritoneal leakage of PEG-3350 could be found. We report on an elderly patient who developed the poisoning caused by leaking of PEG-3350 during bowel preparation. It resulted in severe metabolic acidosis, hypernatremia, hyperosmolality and a high anion gap, but it was effectively treated with early continuous renal replacement therapy after surgery.

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Severe hypernatremia and transient azotemia in a cat following inadvertent intravenous administration of a commercial polyethylene glycol solution
Sabrina N. Hoehne, Casey J. Kohen, Birgit Puschner, Ingrid Gennity, Simon P. Hagley, Kate S. Farrell, Karin Unger, Laura A. Cagle, Karl E. Jandrey
Journal of Veterinary Emergency and Critical Care.2019; 29(6): 690. CrossRef

Treatment of Carbon Monoxide Poisoning with Therapeutic Hypothermia: Young Hwan Lee, You Dong Sohn, Seung Min Park, Won Wong Lee, Ji Yun Ahn, Hee Cheol Ahn; Korean J Crit Care Med. 2013;28(3):218-220.; DOI: https://doi.org/10.4266/kjccm.2013.28.3.218

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Abstract PDF

Carbon monoxide (CO) is a well-known chemical asphyxiant, which causes tissue hypoxia with prominent neurological injury. Therapeutic hypothermia (TH) has been shown to be an effective neuroprotective method in post-cardiac arrest patients. A 26-year-old man presented to the emergency department with severe CO poisoning. On arrival, the patient was comatose. His vital signs were blood pressure, 130/80 mm Hg; heart rate, 126/min; respiratory rate, 26/min; body temperature, 36degrees C; and O2 saturation, 94%. Initial carboxyhemoglobin was 45.2%. Because there was no available hyperbaric chamber in our local area, he was intubated and treated with TH. The target temperature was 33 +/- 1degrees C for 24 hours using an external cooling device. The patient was then allowed to reach normothermia by 0.15-0.25degrees C/hr. The patient was discharged after normal neurological exams on day 11 at the hospital. TH initiated after exposure to CO may be an effective prophylactic method for preventing neurological sequelae.

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Dexmedetomidine Use in Patients with 33℃ Targeted Temperature Management: Focus on Bradycardia as an Adverse Effect
Hyo-yeon Seo, Byoung-joon Oh, Eun-jung Park, Young-gi Min, Sang-cheon Choi
The Korean Journal of Critical Care Medicine.2015; 30(4): 272. CrossRef

Original Article

Prediction of Mortality in Patients with Acute Paraquat Intoxication Using Simplified Acute Physiology Score II: Young yeol You, Younggi Min, Junghwan Ahn, Sang Cheon Choi, Yeonho Shin, Yoonseok Jung, Eunjung Park; Korean J Crit Care Med. 2011;26(4):221-225.; DOI: https://doi.org/10.4266/kjccm.2011.26.4.221

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Abstract PDF: BACKGROUND
The prognosis of paraquat intoxication patients is poor and this makes the prediction of mortality important in administering aggressive treatment and admission. This article investigates the usefulness of simplified acute physiology score II (SAPS II), as a predictor of the mortality in paraquat intoxication.
METHODS
We retrospectively reviewed 65 patients who were admitted in one hospital between January in 2005 and December in 2010. We calculated their SAPS II, serum paraquat level, and severity index of paraquat poisoning (SIPP) at the time of intensive care unit (ICU) admission. We investigated the relationship between each systems and the mortality.
RESULTS
Overall mortality was 73.8%: 48 out of 65 patients died. Non-survived group (n = 48) had a higher SAPS II score (30.44 +/- 15.99) than survived group (n = 17 [15.7 +/- 6.26], p < 0.001). Serum paraquat level and SIPP were significantly higher in non-survived group than in survived group (p < 0.05, in all comparisons). By using the area under receiver operating characteristic curves (AUC), the SAPS II system yielded equal discriminative power (AUC = 0.82) with serum paraquat level (AUC = 0.896) and SIPP (AUC = 0.865). Hosmer-Lemeshow goodness-of-fit test C indicated SAPS II score validated well in paraquat intoxication group (p = 0.33).
CONCLUSIONS
Serum paraquat level is the best way for prediction of mortality in patients with acute paraquat intoxication. If checking serum paraquat level is impossible or delayed, SAPS II score can be an alternative tool for evaluating the prognosis in paraquat intoxication.

Case Report

A Case of Acute on Chronic Salicylate Poisoned Elderly Patient with Early Utilization of Continuous Venovenous Hemodiafiltration: A Case Report: Ji Sook Lee, Woo Chan Jeon, Young Gi Min, Won Hyun Ryu, Yoon Seok Jung, Sang Cheon Choi; Korean J Crit Care Med. 2011;26(3):177-180.; DOI: https://doi.org/10.4266/kjccm.2011.26.3.177

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Abstract PDF: Salicylate poisonings are divided into acute and chronic syndromes. The most challenging aspect of the management of aspirin-poisoning may be recognition of subtle signs and symptoms of chronic, unintentional overdose. Chronic poisoning typically occurs in elderly as a result of unintentional overdosing on salicylates used to treat chronic conditions. Treatment is directed toward preventing intestinal absorption of the drugs and enhanced elimination. After the first-line treatments, aspirin overdose with its complications of hemodynamic, electrolyte and acid-base issues, is best managed by prompt hemodialysis. We report a case of a 87-year-old woman, who presented with acute on chronic salicylate poisoning. After early continuous venovenous hemodiafiltration, old woman made a good recovery from the salicylism but suffered paralytic ileus caused by aspirin enteroliths. Physician can decide a prompt hemodialysis for salicylate-poisoned patients, who worsen clinical courses despite of first-line therapies.

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