CORRELATION OF BEDSIDE LACTATE LEVELS WITH MORTALITY AND PHYSIOLOGICAL PARAMETERS IN ACUTE POISONING: A COLLABORATIVE STUDY BETWEEN MEDICINE AND COMMUNITY MEDICINE
Main Article Content
Keywords
Acute poisoning, bedside lactate, organophosphate, mortality, prognosis, emergency medicine, Pakistan
Abstract
Background
Acute poisoning remains an important medical emergency, particularly in regions where pesticides and household chemicals are easily available. Early identification of high-risk patients can support timely management. Bedside lactate measurement provides a quick indication of tissue hypoxia and illness severity, but local evidence on its usefulness in poisoning cases is limited.
Methodology
This observational study was conducted in the Medicine Department Cat D Hospital, Katlang, from January 2024 to January 2025. A total of 72 patients with acute poisoning were included. Clinical details, socio-demographic features, and physiological parameters were recorded at admission. Bedside lactate levels were measured on arrival. Outcomes such as ICU admission, ventilatory support, hospital stay, and mortality were noted. Data were analyzed using appropriate statistical tests, with p < 0.05 considered significant.
Results
Most patients were young adults aged 21–40 years, and the majority belonged to rural areas. Organophosphate poisoning was the most common type. Higher lactate levels were strongly associated with low blood pressure, low oxygen saturation, tachypnea, reduced GCS scores, and poor outcomes. Patients with lactate ≥4 mmol/L showed a significantly higher mortality rate compared to those with lower levels. Increased ICU admissions and ventilatory support were also seen in this group.
Conclusion
Bedside lactate measurement serves as a useful prognostic marker in acute poisoning. Elevated lactate at admission reflects physiological deterioration and is linked with greater risk of serious complications and death. Early lactate testing may assist in identifying patients needing urgent intensive care in resource-limited environments.
References
2. Balmuchu, G., et al., Outcome prediction using sequential organ failure assessment (SOFA) score and serum lactate levels in organophosphate poisoning. 2023. 12(4): p. 777-782.
3. ELMORSYA, E.J.P., Arterial Blood Lactate Level as a Biomarker of Risk among Antipsychotics Poisoned patients. 8: p. 26.7.
4. Leach, R.M., Critical care medicine at a glance. 2023: John Wiley & Sons.
5. Gottlieb, J., et al., German S3 guideline: oxygen therapy in the acute care of adult patients. 2022. 101(2): p. 214-252.
6. Stravitz, R.T., et al., Future directions in acute liver failure. 2023. 78(4): p. 1266-1289.
7. Dezfulian, C., et al., Opioid-associated out-of-hospital cardiac arrest: distinctive clinical features and implications for health care and public responses: a scientific statement from the American Heart Association. 2021. 143(16): p. e836-e870.
8. Min, G.-J., et al., Geriatric assessment predicts nonfatal toxicities and survival for intensively treated older adults with AML. 2022. 139(11): p. 1646-1658.
9. Rajsic, S., et al., Diagnostic modalities in critical care: point-of-care approach. 2021. 11(12): p. 2202.
10. Tutty, M.A., et al., Three-dimensional (3D) liver cell models-a tool for bridging the gap between animal studies and clinical trials when screening liver accumulation and toxicity of nanobiomaterials. 2022. 12(9): p. 2048-2074.
11. Wu, E.J.H.K.J.o.E.M., 11th Asian Conference on Emergency Medicine (ACEM) 2021 Conference proceedings. 2022. 29(1S): p. 2S-87S.
12. Cruz Navarro, J., L.L. Ponce Mejia, and C.J.F.i.P. Robertson, A precision medicine agenda in traumatic brain injury. 2022. 13: p. 713100.
13. SHOCK, S., et al., SOCIETY OF CRITICAL CARE MEDICINE 51ST CRITICAL CARE CONGRESS. 2021.
14. Imhoff, B.F., et al., Abstracts for the 38th Annual Emergencies in Medicine Conference. 2021. 14(1): p. 61-71.
15. Zipursky, J., et al., 2023 ACMT Annual Scientific Meeting Abstracts–San Diego, CA. 2023. 19: p. 63-168.
16. Chumachenko, A., et al., 40th International Symposium on Intensive Care & Emergency Medicine 2021. 2021. 25(1): p. P001.
17. Egbuta, C. and K.P.J.J.o.C.M. Mason, Current state of analgesia and sedation in the pediatric intensive care unit. 2021. 10(9): p. 1847.
18. Epifano, J.R., et al. Towards an explainable mortality prediction model. in 2020 IEEE 30th International Workshop on Machine Learning for Signal Processing (MLSP). 2020. IEEE.
19. Akbar, A., et al., Abstracts for the 38th Annual Emergencies in Medicine Conference. 2021. 14(1): p. 61-71.
20. Gupta, D., TBI Audit: Audit of Monitoring, Surgery, Intensive Care and Outcome in Traumatic Brain Injuries. 2023, Sanjay Gandhi Post Graduate Institute of Medical Sciences.
