Development of a tool to assess evidence for causality in studies implicating sink drains as a reservoir for hospital-acquired gammaproteobacterial infection.

BACKGROUND: Decades of studies document an association between Gammaproteobacteria in sink drains and hospital-acquired infections, but the evidence for causality is unclear. AIM: We aimed to develop a tool to assess the quality of evidence for causality in research studies that implicate sink drains as reservoirs for hospital-acquired Gammaproteobacterial infections. METHODS: We used a modified Delphi process with recruited experts in hospital epidemiology to develop this tool from a pre-existing causal assessment application. FINDINGS: Through four rounds of feedback and revision we developed the 'Modified CADDIS Tool for Causality Assessment of Sink Drains as a Reservoir for Hospital-Acquired Gammaproteobacterial Infection or Colonization'. In tests of tool application to published literature during development, mean percent agreement ranged from 46.7% to 87.5%, and the Gwet's AC1 statistic (adjusting for chance agreement) ranged from 0.13 to 1.0 (median 68.1). Areas of disagreement were felt to result from lack of a priori knowledge of causal pathways from sink drains to patients and uncertain influence of co-interventions to prevent organism acquisition. Modifications were made until consensus was achieved that further iterations would not improve the tool. When the tool was applied to 44 articles by two independent reviewers in an ongoing systematic review, percent agreement ranged from 93% to 98%, and the Gwet's AC1 statistic was 0.91-0.97. CONCLUSION: The modified causality tool was useful for evaluating studies that implicate sink drains as reservoirs for hospital-acquired infections and may help guide the conduct and reporting of future research.

[Maternal virilization due to mucinous ovarian tumour: a case report]. / Tumeur ovarienne mucineuse virilisante et grossesse: à propos d'un cas.

Virilization in pregnancy is rare and mostly due to luteoma or to hyper-reactio luteinalis. We present a rare case of a virilization borderline mucinous ovarian tumour on a gravida 1 patient. The tumour was responsible for a clinical hyperandrogenism and for an increased level of testosterone. This patient was treated by ovariectomy at 31 weeks of gestation. The surgery was completed one month after delivery. There was no fetal consequence and the clinical and biological signs of virilization totally disappeared after surgery.

[A rare cause of febrile polyadenopathy in children: Kikuchi-Fujimoto disease]. / Une cause rare chez l'enfant de poly-adénopathie fébrile : la maladie de Kikuchi-Fujimoto.

Kikuchi disease is a histiocytic necrotizing lymphadenitis revealed by cervical lymphadenopathy and prolonged fever. It occurs predominantly in young Asian women. The pathophysiology is unknown; the main hypothesis is an autoimmune process. Although the disease usually resolves spontaneously in a few weeks or months, it may progress to systemic lupus erythematosus. Kikuchi disease is rare in children, but it should be considered a potential diagnosis in case of polyadenopathy. We relate a case of Kikuchi-Fujimoto disease in a 13-year-old boy with sickle-cell anemia. The diagnosis, which was established after 3 weeks of hospitalization, enabled us to avoid unnecessary extensive investigations and prolonged empirical treatments that may result in unintended adverse side effects.