Evidence map›Paper›PMID 41507816›Full record

ArticleBMC infectious diseases2026

Severe leptospirosis in the intensive care unit: single centre prospective cohort study from Sri Lanka.

Pramith Ruwanpathirana, Roshan Rambukwella, Nilanka Perera, Dilshan Priyankara

Abstract read
In one paragraph

Article in BMC infectious diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Pramith RuwanpathiranaProfessorial Unit in Medicine, National Hospital of Sri Lanka, Colombo, Sri Lanka. pramithrp@gmail.com.
Roshan RambukwellaDeparment of Health Services, Central Province, Kandy, Sri Lanka.
Nilanka PereraDepartment of Medicine, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka.
Dilshan PriyankaraMedical Intensive Care Unit, National Hospital of Sri Lanka, Colombo, Sri Lanka.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSevere leptospirosis often requires intensive care unit (ICU) treatment. The clinical phenotypes and outcomes of severe leptospirosis remain poorly characterised. We aimed to characterise the phenotypes and outcomes of patients with severe leptospirosis treated in the ICU.

methodsWe conducted a prospective cohort study at the Medical ICU of the National Hospital of Sri Lanka between January 2019 and January 2022 on adult patients with serologically or microbiologically confirmed leptospirosis. Clinical and laboratory data were recorded prospectively. Unsupervised two-step cluster analysis using six variables selected a priori (acute kidney injury, pulmonary haemorrhage, myocarditis, mechanical ventilation, renal replacement therapy, and hospital-acquired infections) was used to identify clinical phenotypes and to generate phenotypically distinct clusters of patients. Laboratory and biochemical parameters were compared across clusters. Kaplan–Meier survival analysis was used to compare mortality. The primary outcome was in-hospital mortality.

resultsOne hundred and sixteen patients were included (mean age 43.9 years; males n = 103, 88.8%). Among them, 99.1% (n = 115) developed acute kidney injury, 62.1% (n = 72) developed pulmonary haemorrhage, and 75.9% (n = 88) developed myocarditis. Mechanical ventilation and dialysis were required in 56.9% (n = 66) and 75% (n = 87), respectively. Mortality rate was 17.2% (n = 20). Cluster analysis identified four phenotypes: (1) multi-organ failure (n = 43) (mortality of 25.6%, n = 11), (2) predominant respiratory failure (n = 20) (mortality of 35.0%, n = 7), (3) predominant renal failure (n = 26) (mortality of 7.7%, n = 2), and (4) intermediate severity (n = 27) (No mortality). Clusters with multi-organ and respiratory failure had higher hospital-acquired infection rates (p < 0.001) and a longer ICU stay (p < 0.001).

conclusionsCritically ill patients with leptospirosis exhibit distinct clinical phenotypes with variable outcomes. Isolated pulmonary haemorrhage and multi-organ failure are associated with high mortality. These findings support the need for phenotype-based risk stratification, prognostication, and treatment. CLINICAL

trial registrationNot applicable.

Indexed as

Intensive Care UnitsLeptospirosisAcute Kidney InjuryAdultCross InfectionFemaleHospital MortalityHumansMaleMiddle AgedProspective StudiesSri LankaCluster analysisCritical careIntensive care unitLeptospirosisWeil’s disease

Identifiers

PMID41507816
PMCPMC12874982

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.