title: Impact of catheter arteriography on the serum level of asymmetric dimethylarginine, an endogenous inhibitor of nitric oxide synthase.
abstract: The purpose of this study was to investigate the instantaneous impact of catheter arteriography on blood asymmetric dimethylarginine (ADMA) levels in accordance with patient- and procedure-related variables. Sixty-eight patients (16 women, 52 men; mean age, 45.6 +/- 20.1 years; range, 20-79 years) referred for cerebral or peripheral catheter arteriography were recruited for the study. Pre- and postarteriography arterial blood ADMA levels were determined by high-performance liquid chromatographic technique. Type of nonionic iodinated contrast media used, duration of procedure, patient gender, and patient age were noted and evaluated as possible factors that could influence serum ADMA levels in arteriography procedures. Prearteriography ADMA levels decreased significantly after arteriography in general (pre, 1.16 +/- 0.96 micromol/L; post, 1.08 +/- 0.80 micromol/L; p = 0.002). Males tended to have lower postarteriography serum ADMA levels (p = 0.005). Serum ADMA levels tended to get lower after peripheral arteriography procedures (p = 0.005) and when iohexol, 350 mg I/ml, was used as the contrast agent (p = 0.017). In conclusion, ADMA level does not seem to be subject to acute elevation after catheter arteriography; on the contrary, its level may decrease in general. Moreover, a reduction in serum ADMA level may be expected, especially in male patients, in patients who undergo a peripheral arteriography procedure, or when iohexol, 350 mg I/ml, is used as the contrast agent.
authors.affiliation: Department of Radiology, Gulhane Military Medical Academy, 06018 Etlik, Ankara, Turkey. ubozlar@yahoo.com
authors.forename: Ugur
authors.initials: U
authors.lastname: Bozlar
authors.forename: Mehmet Sahin
authors.initials: MS
authors.lastname: Ugurel
authors.forename: Omer
authors.initials: O
authors.lastname: Ozcan
authors.forename: Erdinc
authors.initials: E
authors.lastname: Cakir
authors.forename: Bahri
authors.initials: B
authors.lastname: Ustunsoz
authors.forename: Taner
authors.initials: T
authors.lastname: Ucoz
authors.forename: Cumhur
authors.initials: C
authors.lastname: Bilgi
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Somuncu
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography / Q000009:adverse effects / Q000379:methods*; D001120:Arginine / Q000031:analogs & derivatives* / Q000097:blood; D015415:Biomarkers / Q000097:blood; D002406:Catheterization, Peripheral / Q000009:adverse effects / Q000379:methods*; D002851:Chromatography, High Pressure Liquid; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019001:Nitric Oxide Synthase / Q000037:antagonists & inhibitors* / Q000097:blood*; D011336:Probability; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D018709:Statistics, Nonparametric
chemical_list: D015415:Biomarkers; C018524:N,N-dimethylarginine; D001120:Arginine; D019001:Nitric Oxide Synthase