Abstract
Background
Abdominal arterial calcification (AAC) is common among candidates for kidney transplant. The aim of this study is to correlate AAC score value with post-kidney transplant outcomes.
Methods
We modified the coronary calcium score by changing the intake data points and used it to quantitate the AAC. We conducted a retrospective clinical study of all adult patients who were transplanted at our center, between 2010 and 2013, and had abdominal computed tomography scan done before transplantation. Outcomes included mortality, pulse pressure (PP) measured by 24 h ambulatory blood pressure monitoring system, and kidney allograft function measured by iothalamate clearance.
Results
For each 1000 increase of AAC score value, there is an associated 1.05 increase in the risk of death (95% CI 1.02, 1.08) (p < 0.001). Overall median AAC value for all patients was 1784; Kaplan–Meier curve showed reduced survival of all-cause mortality for patients with AAC score value above median and reduced survival among patients with cardiac related mortality. The iothalamate clearance was lower among patients with total AAC score value above the median. Patients with abnormal PP (< 40 or > 60 mmHg) had an elevated median AAC score value at 4319.3 (IQR 1210.4, 11097.1) compared to patients with normal PP with AAC score value at 595.9 (IQR 9.9, 2959.9) (p < 0.001).
Conclusion
We showed an association of AAC with patients’ survival and kidney allograft function after kidney transplant. The AAC score value could be used as a risk stratification when patients are considered for kidney transplant.
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References
Collins AJ et al (2012) United States renal data system 2011 annual data report: atlas of chronic kidney disease & end-stage renal disease in the United States. Am J Kidney Dis 59(1 Suppl 1):e1-420
Workgroup KD (2005) K/DOQI clinical practice guidelines for cardiovascular disease in dialysis patients. Am J Kidney Dis 45(4 Suppl 3):S1-153
Hariharan S, Israni AK, Danovitch G (2021) Long-term survival after kidney transplantation. N Engl J Med 385(8):729–743
Wu DA et al (2020) Recipient comorbidity and survival outcomes after kidney transplantation: a UK-wide prospective cohort study. Transplantation 104(6):1246–1255
Rijkse E et al (2020) The prognosis of kidney transplant recipients with aorto-iliac calcification: a systematic review and meta-analysis. Transpl Int 33(5):483–496
Cianciolo G et al (2014) Importance of vascular calcification in kidney transplant recipients. Am J Nephrol 39(5):418–426
Benjamens S et al (2020) Aorto-iliac artery calcification prior to kidney transplantation. J Clin Med 9(9):2893
Agatston AS et al (1990) Quantification of coronary artery calcium using ultrafast computed tomography. J Am Coll Cardiol 15(4):827–832
Chirinos JA et al (2019) Large-artery stiffness in health and disease: JACC state-of-the-art review. J Am Coll Cardiol 74(9):1237–1263
Zhang Y et al (2020) Arterial stiffness in hypertension and function of large arteries. Am J Hypertens 33(4):291–296
Kruger B et al (2019) Pulse pressure and outcome in kidney transplantation: results from the collaborative transplant study. Transplantation 103(4):772–780
Safar ME (2008) Pulse pressure, arterial stiffness and wave reflections (augmentation index) as cardiovascular risk factors in hypertension. Ther Adv Cardiovasc Dis 2(1):13–24
Agarwal R (2003) Ambulatory GFR measurement with cold iothalamate in adults with chronic kidney disease. Am J Kidney Dis 41(4):752–759
So S et al (2021) Factors influencing long-term patient and allograft outcomes in elderly kidney transplant recipients. Kidney Int Rep 6(3):727–736
da CRincon Cintra Cruz P et al (2020) Donor age amplifies the detrimental effects of cold ischemia time on long-term kidney allograft survival independently of the occurrence of delayed graft function or early acute rejection. Exp Clin Transplant 18(4):436–443
Salahudeen AK, Haider N, May W (2004) Cold ischemia and the reduced long-term survival of cadaveric renal allografts. Kidney Int 65(2):713–718
Sorensen VR et al (2016) survival benefit in renal transplantation despite high comorbidity. Transplantation 100(10):2160–2167
Kidney disease: improving global outcomes transplant work, G., KDIGO clinical practice guideline for the care of kidney transplant recipients. Am J Transplant, 9(Suppl 3):S1–155 (2009)
Rangaswami J et al (2019) Cardiovascular disease in the kidney transplant recipient: epidemiology, diagnosis and management strategies. Nephrol Dial Transplant 34(5):760–773
Pagonas N et al (2019) The impact of blood pressure variability and pulse pressure on graft survival and mortality after kidney transplantation. Clin Transplant 33(1):e13448
Jarmi T et al (2018) Pulmonary artery systolic pressure measured intraoperatively by right heart catheterization is a predictor of kidney transplant recipient survival. Ann Transplant 23:867–873
Segers P, Rietzschel ER, Chirinos JA (2020) How to measure arterial stiffness in humans. Arterioscler Thromb Vasc Biol 40(5):1034–1043
Lewis JR et al (2019) Association between aortic calcification, cardiovascular events, and mortality in kidney and pancreas-kidney transplant recipients. Am J Nephrol 50(3):177–186
Detrano R et al (2008) Coronary calcium as a predictor of coronary events in four racial or ethnic groups. N Engl J Med 358(13):1336–1345
Klassen PS et al (2002) Association between pulse pressure and mortality in patients undergoing maintenance hemodialysis. JAMA 287(12):1548–1555
Alappan HR et al (2020) vascular calcification slows but does not regress after kidney transplantation. Kidney Int Rep 5(12):2212–2217
Clayton PA et al (2019) Long-term outcomes after acute rejection in kidney transplant recipients: an ANZDATA analysis. J Am Soc Nephrol 30(9):1697–1707
Jarmi T et al (2020) The impact of different induction immunosuppressive therapy on long-term kidney transplant function when measured by iothalamate clearance. J Clin Med Res 12(12):787–793
Leow K et al (2021) Prognostic value of abdominal aortic calcification: a systematic review and meta-analysis of observational studies. J Am Heart Assoc 10(2):e017205
Benjamens S et al (2021) Aorto-iliac artery calcification and graft outcomes in kidney transplant recipients. J Clin Med 10(2):325
McCormick F, Held PJ, Chertow GM (2018) The terrible toll of the kidney shortage. J Am Soc Nephrol 29(12):2775–2776
Hart A et al (2019) OPTN/SRTR 2017 annual data report: kidney. Am J Transplant 19(Suppl 2):19–123
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Jarmi, T., Spaulding, A.C., Jebrini, A. et al. Association of Abdominal Arterial Calcification Score with Patients’ Survival and Kidney Allograft Function after Kidney Transplant. World J Surg 46, 2468–2475 (2022). https://doi.org/10.1007/s00268-022-06665-z
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DOI: https://doi.org/10.1007/s00268-022-06665-z