Cardiovascular Diseases & Diagnosis

Richard E. Slavin

Publications

• Review Article
  Segmental Arterial Mediolysis: A Review of a Proposed Vascular Disease of the Peripheral Sympathetic Nervous System – A Density Disorder of the Alpha-1 Adrenergic Receptor?
  Author(s): Richard E. SlavinRichard E. Slavin
  
  Segmental arterial mediolysis (SAM) is an uncommon arteriopathy that causes catastrophic abdominal hemorrhages, ischemic vascular changes and organ injury. Morphologic changes have suggested that SAM is a vasospastic disorder and that the responsible pressor agent is norepinephrine. This premise was strengthened by the finding of SAM in greyhound dogs administered ractopamine, a Beta-2 agonist capable or releasing norepinephrine from the peripheral sympathetic nervous system. This article will fortify this hypothesis by fitting the morphologic features and clinical presentations of SAM into events occurring in a stimulated peripheral sympathetic reflex arc. SAM is activated by non-physiological stimuli supplied by indirect acting sympathomimetic agonists. The stimulus is discrete usually limited to one vascular bed. A possible excessive quantity of norepinephrine is released which com.. Read More»
  DOI: 10.4172/2329-9517.1000190

  Abstract PDF