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Titolo:
Occlusive hyperemia: A radiosurgical phenomenon?
Autore:
Pollock, BE;
Indirizzi:
Mayo Clin & Mayo Fdn, Dept Neurol Surg, Rochester, MN 55905 USA Mayo Clin & Mayo Fdn Rochester MN USA 55905 Surg, Rochester, MN 55905 USA
Titolo Testata:
NEUROSURGERY
fascicolo: 5, volume: 47, anno: 2000,
pagine: 1178 - 1182
SICI:
0148-396X(200011)47:5<1178:OHARP>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL ARTERIOVENOUS-MALFORMATIONS; PERFUSION-PRESSURE BREAKTHROUGH; GAMMA-KNIFE RADIOSURGERY; DOSE-RESPONSE ANALYSIS; OBLITERATION; COMPLICATIONS; PREDICTION; RESECTION; HEMORRHAGE; RISK;
Keywords:
arteriovenous malformation; complication; radiosurgery;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Pollock, BE Mayo Clin & Mayo Fdn, Dept Neurol Surg, 200 1st St SW, Rochester, MN 55905USA Mayo Clin & Mayo Fdn 200 1st St SW Rochester MN USA 55905 5USA
Citazione:
B.E. Pollock, "Occlusive hyperemia: A radiosurgical phenomenon?", NEUROSURGER, 47(5), 2000, pp. 1178-1182

Abstract

OBJECTIVE: Causes of neurological deficits after ateriovenous malformation(AVM) radiosurgery, including hemorrhage, radiation injury, and delayed cyst formation, are described. CONCEPT: Occlusive hyperemia has been described as a reason for neurological deterioration after AVM resection. Thrombosis of draining Veins or duralsinuses is thought to cause postoperative bleeding or neurological deficits secondary to venous hypertension, in a similar manner, local hemodynamic changes can occur in the brain adjacent to an AVM after radiosurgery if venous outflow is obstructed. Two patients are presented whose cases demonstrate this phenomenon. CONCLUSION: Patients can experience clinical worsening after AVM radiosurgery from premature thrombosis of draining veins. Local hemodynamic changes could explain why imaging changes thought to be radiation related occur more frequently after radiosurgery of AVMs than of tumors.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 23:06:37