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. 2012 Jul;142(1):185-191.
doi: 10.1378/chest.11-1926.

Risk of post-lung transplant renal dysfunction in adults with cystic fibrosis

Bradley S Quon  1 , Nicole Mayer-Hamblett  2 , Moira L Aitken  3 , Christopher H Goss  3
Affiliations

Risk of post-lung transplant renal dysfunction in adults with cystic fibrosis

Bradley S Quon et al. Chest. 2012 Jul.

Abstract

Background: Cystic fibrosis (CF) is one of the leading indications for lung transplantation. The incidence and pre-lung transplant risk factors for posttransplant renal dysfunction in the CF population remain undefined.

Methods: We conducted a cohort study using adults (≥ 18 years old) in the CF Foundation Patient Registry from 2000 to 2008 to determine the incidence of post-lung transplant renal dysfunction, defined by an estimated glomerular filtration rate of < 60 mL/min/1.73 m(2). Multivariable Cox proportional hazards modeling was used to identify independent pretransplant risk factors for post-lung transplant renal dysfunction.

Results: The study cohort included 993 adult lung transplant recipients with CF, with a median follow-up of 2 years. During the study period, 311 individuals developed renal dysfunction, with a 2-year risk of 35% (95% CI, 32%-39%). Risk of posttransplant renal dysfunction increased substantially with increasing age (25 to < 35 years vs 18 to < 25 years: hazard ratio [HR], 1.60; 95% CI, 1.15-2.23; vs ≥ 35 years: HR, 2.45; 95% CI, 1.73-3.47) and female sex (HR, 1.56; 95% CI, 1.22-1.99). CF-related diabetes requiring insulin therapy (HR, 1.30; 95% CI, 1.02-1.67) and pretransplant renal function impairment (estimated glomerular filtration rate, 60-90 mL/min/m(2) vs > 90 mL/min/m(2): HR, 1.58; 95% CI, 1.19-2.12) also increased the risk of posttransplant renal dysfunction.

Conclusions: Renal dysfunction is common following lung transplant in the adult CF population. Increased age, female sex, CF-related diabetes requiring insulin, and pretransplant renal impairment are significant risk factors.

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Figures

Figure 1.
Figure 1.
Diagram of study population at risk for post-lung transplant renal dysfunction along with cohort follow-up time and number of renal dysfunction events. CF = cystic fibrosis.
Figure 2.
Figure 2.
Kaplan-Meier estimates of the risk of post-lung transplant renal dysfunction over time in years.
See this image and copyright information in PMC

Comment in

  • Peri-lung transplant renal issues in patients with cystic fibrosis.
    O'Connell OJ, Harrison MJ, Murphy DM, Plant WD, Plant BJ. O'Connell OJ, et al. Chest. 2013 Jan;143(1):271. doi: 10.1378/chest.12-2057. Chest. 2013. PMID: 23276857 No abstract available.
  • Response.
    Quon BS, Mayer-Hamblett N, Aitken ML, Goss CH. Quon BS, et al. Chest. 2013 Jan;143(1):272. doi: 10.1378/chest.12-2232. Chest. 2013. PMID: 23276859 Free PMC article. No abstract available.

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