Araştırma Makalesi

Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department

Cilt: 48 Sayı: 3 12 Mayıs 2026
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Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department

Öz

Acute exacerbations of chronic obstructive pulmonary disease (COPD) are a major cause of hospitalization and mortality worldwide, and early identification of high-risk patients in the emergency department is critical for optimizing clinical management. The lactate-to-albumin ratio (LAR) has recently gained attention as a simple biochemical marker reflecting both metabolic stress and systemic inflammation. This retrospective study aimed to evaluate the prognostic value of LAR in patients admitted with acute COPD exacerbation and to compare its performance with established clinical scoring systems. A total of 721 patients aged 18 years or older who were hospitalized after presenting to the emergency department with a confirmed diagnosis of COPD exacerbation between September 2024 and September 2025 were included. Demographic, clinical, and laboratory variables were recorded, and LAR, Pneumonia Severity Index (PSI), and CURB-65 scores were calculated at admission. The primary outcome was intensive care unit (ICU) admission, and secondary outcomes included endotracheal intubation and in-hospital mortality. LAR levels were significantly higher in patients who required ICU care, intubation, or subsequently died, and increasing LAR values were associated with adverse outcomes. Although PSI and CURB-65 demonstrated superior discriminative power compared with LAR, the ratio provided a moderately sensitive indicator of clinical deterioration. These findings suggest that LAR, a readily accessible and inexpensive laboratory parameter, may serve as a complementary adjunct for early risk stratification in acute COPD exacerbations. Further prospective studies are needed to define its optimal use in clinical decision-making.

Anahtar Kelimeler

Kaynakça

  1. 1. Barnes PJ. Inflammatory mechanisms in chronic obstructive pulmonary disease. Eur Respir J. 2020;56(5):2000382.
  2. 2. World Health Organization. Global health estimates: COPD mortality. WHO; 2023.
  3. 3. Roca O, Gómez S, Masclans JR, et al. ICU outcomes in COPD exacerbations requiring ventilatory support. Chest. 2022;161(3):745-756.
  4. 4. Phua J, Amakawa K, Nishimura M, et al. Prognostic markers in respiratory critical care: beyond lactate. Ann Intensive Care. 2023;13(1):51-59.
  5. 5. Cecconi M, De Backer D, Antonelli M, et al. Pathophysiology and clinical meaning of hyperlactatemia. Intensive Care Med. 2022;48(6):724-737.
  6. 6. MacDonald MI, Polkinghorne KR, MacDonald CJ, et al. Elevated blood lactate in COPD exacerbations associates with adverse clinical outcomes. Respirology. 2023;28(9):860-868.
  7. 7. Kangelaris KN, Ware LB, Calfee CS, et al. Biomarkers of hypoxia and inflammation in acute respiratory failure. Crit Care. 2023;27(1):92.
  8. 8. Ling M, Huiyin L, Shanglin C, et al. Relationship between human serum albumin and in-hospital mortality in critical care patients with chronic obstructive pulmonary disease. Front Med (Lausanne). 2023;10:1109910.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Acil Tıp

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

12 Mayıs 2026

Gönderilme Tarihi

18 Kasım 2025

Kabul Tarihi

5 Şubat 2026

Yayımlandığı Sayı

Yıl 2026 Cilt: 48 Sayı: 3

Kaynak Göster

APA
Ayyıldız, F. A., & Yıldız, G. (2026). Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department. Osmangazi Tıp Dergisi, 48(3), 442-448. https://doi.org/10.20515/otd.1825998
AMA
1.Ayyıldız FA, Yıldız G. Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department. Osmangazi Tıp Dergisi. 2026;48(3):442-448. doi:10.20515/otd.1825998
Chicago
Ayyıldız, Fatih Alper, ve Göknur Yıldız. 2026. “Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department”. Osmangazi Tıp Dergisi 48 (3): 442-48. https://doi.org/10.20515/otd.1825998.
EndNote
Ayyıldız FA, Yıldız G (01 Mayıs 2026) Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department. Osmangazi Tıp Dergisi 48 3 442–448.
IEEE
[1]F. A. Ayyıldız ve G. Yıldız, “Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department”, Osmangazi Tıp Dergisi, c. 48, sy 3, ss. 442–448, May. 2026, doi: 10.20515/otd.1825998.
ISNAD
Ayyıldız, Fatih Alper - Yıldız, Göknur. “Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department”. Osmangazi Tıp Dergisi 48/3 (01 Mayıs 2026): 442-448. https://doi.org/10.20515/otd.1825998.
JAMA
1.Ayyıldız FA, Yıldız G. Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department. Osmangazi Tıp Dergisi. 2026;48:442–448.
MLA
Ayyıldız, Fatih Alper, ve Göknur Yıldız. “Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department”. Osmangazi Tıp Dergisi, c. 48, sy 3, Mayıs 2026, ss. 442-8, doi:10.20515/otd.1825998.
Vancouver
1.Fatih Alper Ayyıldız, Göknur Yıldız. Lactate/Albumin Ratio as a Simple Prognostic Biomarker in Acute COPD Exacerbations Presenting to the Emergency Department. Osmangazi Tıp Dergisi. 01 Mayıs 2026;48(3):442-8. doi:10.20515/otd.1825998


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