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-beta receptors are stimulated and primarily increases contractility-may cause decreased SVR and BP-dose is primarily 1-20mcg/kg/min-side effects include: tachycardia, increased myocardial O2 consumption, and potential hypotension.
Norman D. Radtke, MD. Proliferative vitreo-retinopathy (PVR) is the most common cause of failed repair of a retinal detachment and occurs when scar tissue creates traction on the retina.VR is characterized by proliferation of retinal pigment epithelial cells, glial cells, and inflammatory cells on the surface of the retina and within the vitreous gel. Traction is the key feature in the pathogenesis of PVR. The location, extent and severity of traction vary substantially.