Outcomes From Referrals and Unscheduled Visits From Community Emergency Departments to a Regional Pediatric Emergency Department in Canada.

Objectives: Existing pediatric literature describing repeat visits to the emergency department (ED) for the same medical complaint has yet to report on patient flow patterns from general EDs (GEDs) to a pediatric ED (PED). We sought to characterize the population of patients who are treated in a GED and subsequently present to a PED for further care.

Methods: We conducted a retrospective cohort study reviewing all pediatric visits (age < 17 y) at 5 GEDs in Vancouver.

Targeting tumor hypoxia: suppression of breast tumor growth and metastasis by novel carbonic anhydrase IX inhibitors.

Carbonic anhydrase IX (CAIX) is a hypoxia and HIF-1-inducible protein that regulates intra- and extracellular pH under hypoxic conditions and promotes tumor cell survival and invasion in hypoxic microenvironments. Interrogation of 3,630 human breast cancers provided definitive evidence of CAIX as an independent poor prognostic biomarker for distant metastases and survival. shRNA-mediated depletion of CAIX expression in 4T1 mouse metastatic breast cancer cells capable of inducing CAIX in hypoxia resulted in regression of orthotopic mammary tumors and inhibition of spontaneous lung metastasis formation.