Rapid decline in 51Cr-EDTA measured renal function during the first weeks following lung transplantation.
We previously described a 54% decline in renal function at 6 months after lung transplantation (LTx). We hypothesized that this decline is a very early event following LTx. Thirty-one consecutive patients (16 females/15 males), mean age 49 (+/-13) years, with emphysema, cystic fibrosis/bronchiectasis or idiopathic pulmonary fibrosis were included in an analysis of renal function before and after LTx. The glomerular filtration rate (GFR) was measured using the (51)Cr-ethylenediaminetetra acetic acid plasma clearance single injection technique (mGFR) at baseline before transplantation and at 1, 2, 3 and 12 weeks postoperatively. Mean mGFR declined from 103 +/- 18 to 65 +/- 22, 53 +/- 16 and 57 +/- 18 mL/min/1.73m(2) at 1-, 3- and 12-weeks post-LTx (p < 0.0001), respectively. In a time-dependent repeated measures ANOVA, risk factors for a decline in mGFR posttransplant included: time (p < 0.0001), acute renal failure within 2 weeks post-LTx (p = 0.0003), use of heart and lung machine (p = 0.04), and the use of ephedrine (p = 0.048), as well as increasing age, older than 18 years at LTx (p = 0.006). These data demonstrate that renal function, measured with an isotope method, decreases dramatically during the first week after LTx.
Hornum
M
M
Department of Nephrology, University of Copenhagen, Copenhagen, Denmark. mads.hornum@rh.regionh.dk
Iversen
M
M
Steffensen
I
I
Hovind
P
P
Carlsen
J
J
Andersen
L W
LW
Steinbrüchel
D A
DA
Feldt-Rasmussen
B
B
D058186:Acute Kidney Injury / Q000209:etiology; D000328:Adult; D002860:Chromium Radioisotopes; D004492:Edetic Acid; D005260:Female; D005919:Glomerular Filtration Rate / Q000502:physiology*; D006801:Humans; D016040:Lung Transplantation / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies
D002860:Chromium Radioisotopes; D004492:Edetic Acid