Obgyn Key

Interventional Cardiology   Phillip Moore   As the diagnostic role of cardiac catheterization has diminished over the years, its role as a mode of primary therapy has exponentially increased. In…

Perioperative Care   Desmond B. Henry   The term perioperative care refers to all the clinical activities that take place around a surgical intervention, from the preoperative assessment to the…

Hematopoeisis   Charles T. Quinn   Because birth represents one temporal event in the development of the infant, the interpretation of the blood picture in the newborn requires an understanding…

Neisseria meningitidis   Michele Estabrook   Neisseria meningitidis is a common commensal bacterium of the human upper respiratory tract. Colonization infrequently leads to disseminated disease, but the resulting meningitis and…

Systemic Hypertension   Craig W. Belsha and Joseph T. Flynn   Although systemic hypertension occurs in less than 4% of the pediatric population, there is ample evidence that the roots…

Ewing Sarcoma and Primitive Neuroectodermal Tumor   Crystal L. Mackall and Jeffrey A. Toretsky   Ewing sarcoma (ES) is the second most common bone tumor in children and adolescents. It…

Repetitive Behaviors   Adrian D. Sandler   Parents often raise concerns about rhythmic and repetitive behaviors such as rocking, head banging, and thumb sucking. Learning theorists contend that rhythmic movements…

Bone, Joint, Soft Tissue Infections   Robin B. Churchill and Blanca E. Gonzalez   Bone and joint infections may occur at any age but are more common in children than…

Pneumocystis Pneumonia   Walter T. Hughes   Pneumocystis pneumonia (PCP) occurs almost exclusively in the severely immunocompromised host, especially patients with congenital immunodeficiency diseases, AIDS, and cancer, and those who…

The Head, Face, and Neck   Craig S. Derkay and Michael J. Cunningham   CONGENITAL ANOMALIES OF THE HEAD AND NECK The critical period of cervicofacial growth and differentiation occurs…