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Fulltext Mortality of leptospirosis associated acute kidney injury (LAKI) & predictors for its development in adults: A systematic review

Al Hariri YK, Sulaiman SAS, Khan AH, Adnan AS, Al Ebrahem SQ

J Infect Public Health, 2019 07 04;12(6):751-759.
PMID: 31281106 DOI: 10.1016/j.jiph.2019.06.014

Leptospirosis is the most widely spread zoonosis and Leptospirosis Associated Acute Kidney Injury (LAKI) is common and fatal if not properly and swiftly treated. The aim of this review is to evaluate the mortality of LAKI and to identify the risk factors for its development. An electronic search was performed to identify the studies included LAKI patients series. Only studies which investigated mortality or risk factors for LAKI development in adults were included. Twenty-three studies with 24 patients series were included in the final analysis and included 1698 patients. The median series mortality was 10.05% (range 0-33.3%) with a total of 223 death. Only four studies identified the independent risk factors for LAKI development which were oliguria, jaundice, arrhythmia, crackles, elevated direct bilirubin level, elevated activated prothrombin time, hyperbilirubinemia and leukocytosis. Although the mortality of LAKI is high, its predictors are not studied enough in literature.
Fulltext Determinants of prolonged hospitalization and mortality among leptospirosis patients attending tertiary care hospitals in northeastern state in peninsular Malaysia: A cross sectional retrospective analysis

Al Hariri YK, Sulaiman SAS, Khan AH, Adnan AS, Al-Ebrahem SQ

Front Med (Lausanne), 2022;9:887292.
PMID: 36160172 DOI: 10.3389/fmed.2022.887292

BACKGROUND: Leptospirosis is the most common anthropozoonosis worldwide and imposes a major public health problem in many tropical countries. It is a leading cause of disease burden in form of mortality, morbidity and hospital admission. Identifying patients at high risk for mortality or for prolonged hospitalization may save lives and preserve economy. The aim of the current study is to identify significant factors associated with disease mortality and prolonged hospitalization.
DESIGN: Cress-sectional retrospective study.
SETTINGS: Tertiary care teaching hospitals in Kelantan, Peninsular Malaysia.
PARTICIPANTS: Adult patients proven to have leptospirosis depending on IgM ELISA were classified into two classes depending on prolonged hospitalization (>7 days or ≤ 7 days) and mortality (fatal cases or non-fatal cases). Patients' clinico-laboratory data were compared according to these two outcomes using the appropriate statistical test.
RESULTS: Of the 525 patients enrolled, 136 (25.9%) had prolonged hospitalization. The mean length of stay was 6.77 ± 5.68 days. Logistic regression analysis identified acute kidney injury (AKI) (OR 2.3), Jaundice (OR 2.7), elevated alanine aminotransferase (ALT) (OR 2), and prolonged prothrombin time (PT) (OR 1.9) independently associated with prolonged hospitalization. Case fatality rate was 6.48% and around one third of fatal cases had prolonged hospitalization of more than seven days. Factors associated with leptospirosis mortality included age >40 years (p < 0.001), patients presented with tachypnea (p = 0.002), pulmonary infiltrate (p < 0.001), T-wave changes (p < 0.001), atrial fibrillation (p = 0.013), conducting abnormality (p < 0.001), chronic kidney diseases (p < 0.001), multiple organ dysfunctions (p < 0.0010), respiratory failure (p < 0.001), pneumonia (p < 0.001), sepsis (p = 0.004), low venous PH (p = 0.042), AKI (P < 0.001), elevated AST (p < 0.001) or ALT (p = 0.004), hypoalbuminemia (p < 0.001), rhabdomyolysis (p < 0.001), severe thrombocytopenia (p = 0.042), prolonged PT (p < 0.001) or prolonged aPTT (p < 0.017).
CONCLUSIONS: Significant proportion of leptospirosis patients (25.9%) had prolonged hospital stay and less proportion died (6.48%). Early identifying patients with factors associated with prolonged hospitalization and death will positively impact practitioners' decisions regarding the proper and fast course of management including ICU admission.

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