A valuable predictor of hospital stay duration and mortality risk

Background & Rationale

Acute pancreatitis (AP) is a common condition presenting in emergency departments, posing challenges in predicting severity and mortality. Established scoring systems, such as Ranson criteria, Acute Physiology And Chronic Health Evaluation II (APACHE) II, and Bedside Index of Severity in Acute Pancreatitis (BISAP), have varying effectiveness. Lactate dehydrogenase (LDH), an enzyme released during tissue damage, shows promise as a marker for organ injury in AP. The study aimed to evaluate LDH’s potential to predict mortality risk and hospital stay duration in AP patients.

Study Design

The study was a retrospective cohort analysis of AP cases at HCA Healthcare facilities from January 2011 to January 2021. A total of 514 patients with LDH data at admission were included in the study. The patients were categorized into groups based on LDH levels, and outcomes included hospital and ICU stay lengths, mortality rates, and factors such as age, gender, race, BMI, and medical history.

Patient Population

The study included 514 patients with AP, with LDH data available at admission. The patients were stratified into three groups based on LDH levels: Group 1 (LDH < 300 IU/L), Group 2 (LDH 300-600 IU/L), and Group 3 (LDH > 600 IU/L).

Key Findings

Patients with LDH levels > 600 IU/L experienced an average hospital stay extension of 4.5 days compared to those with LDH < 300 IU/L. They were also 3.2 times more likely to require ICU admission and faced a 12.1 times higher mortality risk. The study demonstrated a significant association between elevated LDH levels and increased hospital stay duration, ICU requirements, and mortality rates in AP patients.

Discussion

The study’s findings have real-world implications for the management of AP patients. The use of LDH as a predictor of hospital stay duration, ICU requirements, and mortality rates could aid clinical decision-making in AP management. The cost-effectiveness and accessibility of LDH testing make it a potentially valuable tool in optimizing AP patient care. Future prospective studies should further explore LDH’s role in AP management to confirm these findings and establish its utility in clinical practice.

Authors’ Conclusions

The study highlights LDH as a potentially valuable predictor of hospital stay duration, ICU requirements, and mortality rates in AP patients. The authors suggest that LDH testing could aid clinical decision-making in AP management due to its cost-effectiveness and accessibility. Future prospective studies are recommended to further explore LDH’s role in optimizing AP patient care.

Reference

Trad G, Hoekstra J, Haddadin R, Shetty K, Ryan J. Serum Lactate Dehydrogenase Levels: The Grim Reaper Sign in Acute Pancreatitis?. J Community Hosp Intern Med Perspect. 2025;15(1):8-12. doi:10.55729/2000-9666.1430