Hospital Regionalization in Perspective

Patterns of Hospital Use and Regionalization of Inpatient Pediatric Adenotonsillectomy.

IMPORTANCE Pediatric adenotonsillectomy is one of the most frequently performed procedures in the United States. Whereas several studies have focused on tonsillectomy techniques and outcomes, little is known about the overall changes in the distribution of care. Variations in care patterns between academic and nonacademic settings may have important financial and educational effects. OBJECTIV...

Regionalization of ST-segment elevation acute coronary syndromes care: putting a national policy in proper perspective.

A uniform policy for regionalization of ST-segment elevation myocardial infarction (STEMI) care raises several concerns. Transferring all STEMI patients to obtain primary percutaneous coronary intervention (PCI) may be less effective than transferring only high-risk STEMI patients. Delays in time to treatment >60 min associated with transferring patients for primary PCI may result in increased ...

Regionalization in the mammalian telencephalon.

Regionalization in the telencephalon results in the formation of functionally and anatomically distinct territories. Cell fate analysis and gene expression studies suggest these subdivisions arise relatively late in development compared with the spinal cord or hindbrain. The mechanisms underlying the commitment of telencephalic cells to specific regional identities have been examined through re...

An evolutionary and developmental perspective on the loss of regionalization in the limbs of derived ichthyosaurs

Ichthyosaurs, a lineage of extinct Mesozoic marine reptiles, have garnered attention in both the palaeontological and developmental literature for the unique limb morphology seen in derived genera. These morphologies include an increase in the number of phalanges per digit (hyperphalangy) and in the number of digits (hyperdactyly), but most interestingly also a shift in element identity. Elemen...

Compactness for Regionalization and its Application in Land-Use Planning