title: Twenty four-hour ambulatory blood pressure profiles 12 months post living kidney donation.
abstract: Summary Small blood pressure (BP) elevations may occur post kidney donation. This prospective study determined 24-h ambulatory BP (ABP) and other cardiovascular risk factor changes in 51 living donors over 12 months postdonation. Donors also provided 24-h urine collections for monitoring protein and creatinine clearance, 75 g oral glucose tolerance tests (OGTT), and fasting lipids. Nondipping was defined as night-day systolic (SBP) ratio >or=0.9. Baseline and 12-month pre to postdonation comparisons were made both for dippers and nondippers. Of 51 donors, 35 were dippers and 16 nondippers. In these two groups, predonation 24-h SBP were 115.2 +/- 8 and 115.6 +/- 10 mmHg; serum creatinine (SCr) 69.3 +/- 12 and 71.1 +/- 13 micromol/l; and 24-h urine protein 0.12 +/- 0.05 and 0.09 +/- 0.03 g (all P = NS) while at 12 months, 24-h SBP were 111.4 +/- 11 and 114.3 +/- 8 mmHg (P = 0.384), SCr 97.9 +/- 16 and 97.7 +/- 21 micromol/l (P = 0.810); and 24-h urine protein 0.139 +/- 0.09 and 0.111 +/- 0.07 g/d (P = 0.360) respectively. The 24-h SBP was significantly lower in the dippers at 12 months as compared with predonation (P = 0.036). OGTT and lipid profiles remained normal in both groups. Predonation nocturnal nondipping does not carry adverse postdonation consequences over 12 months.
authors.affiliation: University of Toronto, Division of Nephrology, St. Michael's Hospital, Toronto, ON, Canada. prasadr@smh.toronto.on.ca
authors.forename: G V
authors.initials: GV
authors.lastname: Ramesh Prasad
authors.forename: Deborah
authors.initials: D
authors.lastname: Lipszyc
authors.forename: Sulagna
authors.initials: S
authors.lastname: Sarker
authors.forename: Michael
authors.initials: M
authors.lastname: Huang
authors.forename: Michelle M
authors.initials: MM
authors.lastname: Nash
authors.forename: Lindita
authors.initials: L
authors.lastname: Rapi
mesh_terms: D000328:Adult; D000368:Aged; D001786:Blood Glucose / Q000378:metabolism; D001794:Blood Pressure / Q000502:physiology; D018660:Blood Pressure Monitoring, Ambulatory / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D006977:Hypertension, Renal / Q000453:epidemiology*; D016030:Kidney Transplantation / Q000706:statistics & numerical data*; D008055:Lipids / Q000097:blood; D019520:Living Donors / Q000706:statistics & numerical data*; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000009:adverse effects* / Q000706:statistics & numerical data; D011183:Postoperative Complications / Q000453:epidemiology*; D011507:Proteinuria / Q000453:epidemiology; D012307:Risk Factors; D013997:Time Factors
chemical_list: D001786:Blood Glucose; D008055:Lipids