Case report: Levosimendan as a possible inotropic drug for acute aluminum phosphide toxicity
Abstract
Background: Aluminum phosphide is a severe poisoning that can lead to death. Easy availability with no specific antidote is the leading cause of the higher mortality with it. Case report: The study represents a case report of a 5-year-old male who came after oral ingestion of aluminum phosphide and presented with vomiting, sleep, low blood pressure of 80/20, and a regular and rapid pulse of about 140 per minute. Gastric lavage was done rapidly with 3 bottles of paraffin oil, then 1 bottle was given every 1 h for 4 cycles. Complete laboratory investigations were performed for the patient, such as arterial blood gas, liver enzymes, electrolytes, full blood count, and renal function, which showed normal function except for metabolic acidosis with overcompensated respiratory alkalosis. The patient was transferred to the pediatric intensive care unit, where we gave a dose of 1 mEq sodium bicarbonate per kg with N-acetylcysteine 150 mg/kg in 100 mL of 5% glucose for 2 h under coverage of hydrocortisone and Avil. Antiemetics and proton pump inhibitors were given regularly every 12 h. After discussion with the pediatric specialist, the ejection fraction of the child by echocardiography was low, about 40%, and levosimendan was recommended to be given to the patient. The patient was given a bolus dose of 6 µg/kg over 10 min, followed by an infusion of 0.1 µg/kg/min with excellent response for 48 h. After admission for one week, the patient recovered completely, the ejection fraction became 55%, and the patient was discharged safely to home. Conclusion: Acute accidental exposure to AlP, either accidentally or suicidally or rarely homicidally, presents a significant threat to human life with many toxic effects, especially on the heart. Levosimendan is a drug that is used in decompensated heart failure and can be used as an inotropic agent in acute AlP toxicity.
Copyright (c) 2025 Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License.
References
[1]Gupta BK, Yadav G, Barik AK, et al. The Role of Levosimendan in Acute Aluminum Phosphide Induced Myocardial Toxicity. Toxicology International (Formerly Indian Journal of Toxicology). 2015; 22(2): 116. doi: 10.22506/ti/2015/v22/i2/137675
[2]Zaghary MMS, Ali HAA, Ahmed AMK. The performance of ejection fraction as a predictor of mortality and morbidity in acute aluminium phosphide poisoning. Toxicology Research. 2024; 14(1). doi: 10.1093/toxres/tfae232
[3]Abdelkader M, Elsayed R, Shokry M. Pattern and Outcome of Acute Aluminium Phosphide Intoxicated Cases at Sohag University Hospitals: Special Consideration to Paraffin Oil as a Supportive Treatment. Zagazig Journal of Forensic Medicine. 2023; 21(1): 133-156. doi: 10.21608/zjfm.2023.180421.1133
[4]Sobh ZK, Kholief M, Sobh EK, et al. Exploring research gaps and trends in the management of acute phosphide poisoning: a systematic review. Critical Reviews in Toxicology. 2023; 53(3): 181-206. doi: 10.1080/10408444.2023.2225539
[5]Naddafi M, Eghbal MA, Ghazi Khansari M, et al. Sensing of oxidative stress biomarkers: The cardioprotective effect of taurine & grape seed extract against the poisoning induced by an agricultural pesticide aluminum phosphide. Chemosphere. 2022; 287: 132245. doi: 10.1016/j.chemosphere.2021.132245
[6]Baeeri M, Rahimifard M, Armandeh M, et al. The Effect of Levosimendan on Phosphine-Induced Nephrotoxicity: Biochemical and Histopathological Assessment. Drug Research. 2021; 72(02): 109-118. doi: 10.1055/a-1661-5439
[7]Abd-Allah M, Abdalla A, Mohamed N, et al. Updates on toxicology of Aluminum Phosphide and different management protocols. Zagazig University Medical Journal. 2022. doi: 10.21608/zumj.2022.125913.2491
[8]Armandeh M, Bameri B, Baeeri M, et al. The role of levosimendan in phosphine-induced cardiotoxicity: evaluation of electrocardiographic, echocardiographic, and biochemical parameters. Toxicology Mechanisms and Methods. 2021; 31(9): 631-643. doi: 10.1080/15376516.2021.1950248
[9]A Farrar R, B Justus A, A Masurkar V, et al. Unexpected survival after deliberate phosphine gas poisoning: An Australian experience of extracorporeal membrane oxygenation rescue in this setting. Anaesthesia and Intensive Care. 2021; 50(3): 250-254. doi: 10.1177/0310057x211047603
[10]Papp Z, Édes I, Fruhwald S, et al. Levosimendan: Molecular mechanisms and clinical implications. International Journal of Cardiology. 2012; 159(2): 82-87. doi: 10.1016/j.ijcard.2011.07.022
[11]Gurjar M, Baronia A, Azim A, et al. Managing aluminum phosphide poisonings. Journal of Emergencies, Trauma, and Shock. 2011; 4(3): 378. doi: 10.4103/0974-2700.83868
[12]Mathai A, Bhanu M. Acute aluminium phosphide poisoning: Can we predict mortality?. Indian Journal of Anaesthesia. 2010; 54(4): 302. doi: 10.4103/0019-5049.68372
[13]El-Sarnagawy G. Predictive Factors of Mortality in Acute Aluminum Phosphide Poisoning: 5 Years Retrospective Study in Tanta Poison Control Unit. Ain Shams Journal of Forensic Medicine and Clinical Toxicology. 2017; 29(2): 70-79. doi: 10.21608/ajfm.2017.18211
[14]Shadnia S, Rahimi M, Pajoumand A, et al. Successful treatment of acute aluminium phosphide poisoning: possible benefit of coconut oil. Human & Experimental Toxicology. 2005; 24(4): 215-218. doi: 10.1191/0960327105ht513oa
[15]Aghebat-Bekheir S, Abdollahi M. Discovering the most impactful treatments for aluminum phosphide cardiotoxicity gleaned from systematic review of animal studies. Human & Experimental Toxicology; 2024. doi: 10.1177/09603271241290922
[16]Heringlake M, Alvarez J, Bettex D, et al. An update on levosimendan in acute cardiac care: applications and recommendations for optimal efficacy and safety. Expert Review of Cardiovascular Therapy. 2021; 19(4): 325-335. doi: 10.1080/14779072.2021.1905520
[17]Tycińska A, Gierlotka M, Bugajski J, et al. Levosimendan in the treatment of patients with acute cardiac conditions: an expert opinion of the Association of Intensive Cardiac Care of the Polish Cardiac Society. Kardiologia Polska. 2020; 78(7-8): 825-834. doi: 10.33963/kp.15551
[18]Lelonek M, Stopczynska I, Koroscik E, et al. Multicenter experiences with levosimendan therapy and its safety in patients with decompensated advanced heart failure. Advances in Clinical and Experimental Medicine. 2020; 29(11): 1305-1312. doi: 10.17219/acem/126301
[19]Li H, Duan Y, Chen B, et al. New pharmacological treatments for heart failure with reduced ejection fraction (HFrEF). Medicine. 2020; 99(5): e18341. doi: 10.1097/md.0000000000018341
[20]Follath F, Cleland JGF, Just H, et al. Efficacy and safety of intravenous levosimendan compared with dobutamine in severe low-output heart failure (the LIDO study): a randomised double-blind trial. Lancet. 2002; 360(9328): 196-202. doi: 10.1016/S0140-6736(02)09455-2


