LENT Score (Malignant Pleural Effusion Prognosis)
LENT score for malignant pleural effusion prognosis (Clive 2014): pleural fluid LDH, ECOG performance status, serum neutrophil-to-lymphocyte ratio, and tumor type give a 0–7 score banding median survival.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Pleural fluid LDH
- 1600 IU/L
- ECOG performance status
- 2 — ambulatory, no work (+2)
- Serum neutrophil-to-lymphocyte ratio
- 10
- Tumor type
- Lung / other (+2)
Result: LENT 6/7 — high-risk (5–7); median survival ≈ 44 days in the development cohort.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Risk
- Low 0–1 (median ≈ 319 days), moderate 2–4 (≈ 130 days), high 5–7 (≈ 44 days). The first effusion-specific survival score; a prognostic estimate informing goals-of-care, not a procedure order.
What you enter
- Pleural fluid LDH
- ECOG performance status
- Serum neutrophil-to-lymphocyte ratio
- Tumor type
How this is calculated
- Items
- Pleural-fluid LDH ≥ 1500 → 1; ECOG 0/1/2/3; serum neutrophil-to-lymphocyte ratio ≥ 9 → 1; tumor type mesothelioma/heme 0, breast/gyn/renal 1, lung/other 2. Total 0–7.
Clive AO, Kahan BC, Hooper CE, et al. Predicting survival in malignant pleural effusion: development and validation of the LENT prognostic score. Thorax. 2014;69(12):1098-1104. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.