PMID- 17164744 OWN - NLM STAT- MEDLINE DCOM- 20070621 LR - 20131121 IS - 0392-9590 (Print) IS - 0392-9590 (Linking) VI - 25 IP - 4 DP - 2006 Dec TI - A prospective patient observational study of the role of hyperhomocysteinemia in restenosis in patients undergoing infrainguinal angioplasty or bypass procedures. PG - 378-84 AB - AIM: The aim of this study was to examine the correlation between elevated plasma homocysteine (HCy) and restenosis/occlusion in patients undergoing infrainguinal angioplasty or bypass grafting. METHODS: Fifty-three patients presenting to the Northern Vascular Unit were sequentially recruited to the study and prospectively followed up for 12 months post-infrainguinal angioplasty or bypass surgery. Plasma HCy was measured preprocedure and at least 3 months postprocedure using the Abbott IMx system. Hyperhomocysteinemia (HHCy) was taken at a level >15 microM/L. All patients were serially duplex scanned at 6 weeks, and 3, 6, 9 and 12 months. Kaplan-Meier analysis was performed to assess the restenosis/occlusion rate in patients with HHCy versus controls. Analysis of correlation between risk factors for restenosis/occlusion was performed using the Pearson correlation coefficient. In addition, logistic regression analysis was performed. RESULTS: Forty-eight percent of procedures was performed in patients with HHCy. There were 18 graft stenoses/occlusions, and 13 restenoses/occlusions postangioplasty. HHCy did not correlate with an increased risk of restenosis/occlusion (P=0.79). There was a significant correlation between HCy, age, folate and cholesterol levels. Logistic regression analysis revealed no factors that correlated with failure of therapeutic intervention. CONCLUSIONS: This study does not support the hypothesis that HHCy is associated with an increased risk of restenosis after vascular intervention. FAU - Hansrani, M AU - Hansrani M AD - Department of Surgery, Freeman Hospital, Newcastle upon Tyne, UK. FAU - Oates, C AU - Oates C FAU - Stansby, G AU - Stansby G LA - eng PT - Journal Article PL - Italy TA - Int Angiol JT - International angiology : a journal of the International Union of Angiology JID - 8402693 RN - 0LVT1QZ0BA (Homocysteine) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Anastomosis, Surgical MH - Angioplasty MH - Atherosclerosis/blood/*etiology/*surgery MH - Female MH - Groin MH - Homocysteine/blood MH - Humans MH - Hyperhomocysteinemia/*complications MH - Male MH - Middle Aged MH - Prospective Studies MH - Recurrence EDAT- 2006/12/14 09:00 MHDA- 2007/06/22 09:00 CRDT- 2006/12/14 09:00 PHST- 2006/12/14 09:00 [pubmed] PHST- 2007/06/22 09:00 [medline] PHST- 2006/12/14 09:00 [entrez] PST - ppublish SO - Int Angiol. 2006 Dec;25(4):378-84.