PORTOSYSTEMIC SHUNTS
\pˌɔːtəsɪstˈɛmɪk ʃˈʌnts], \pˌɔːtəsɪstˈɛmɪk ʃˈʌnts], \p_ˌɔː_t_ə_s_ɪ_s_t_ˈɛ_m_ɪ_k ʃ_ˈʌ_n_t_s]\
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Surgical venous shunt between the portal and systemic circulation to effect decompression of the portal circulation. It is performed primarily in the treatment of bleeding esophageal varices resulting from portal hypertension. Types of shunt include portacaval, splenorenal, mesocaval, splenocaval, left gastric-caval (coronary-caval), portarenal, umbilicorenal, and umbilicocaval.
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Vertebral Artery Dissection
- Dissection wall artery, leading to formation an aneurysm that occlude vessel. Thrombus give rise emboli. Cervical fractures or related NECK INJURIES and CRANIOCEREBRAL TRAUMA are commonly associated conditions, although this process may occur spontaneously. Ischemia, infarction, hemorrhage in the vascular distribution of affected vertebral artery complicate condition.