Volume 28, Issue 8 pp. 889-896
Original Article

Assessment of endothelial dysfunction in Asian Indian patients with chronic kidney disease and changes following renal transplantation

Jugal Sharma

Jugal Sharma

Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow, India

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Aditya Kapoor

Corresponding Author

Aditya Kapoor

Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow, India

Corresponding author: Dr. Aditya Kapoor, Professor of Cardiology, Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow 226014, India.

Tel.: 91 522 2494220;

fax: 91 0522 2668073;

e-mail: [email protected]

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Ranjanee Muthu

Ranjanee Muthu

Department of Nephrology, Sanjay Gandhi PGIMS, Lucknow, India

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Narayan Prasad

Narayan Prasad

Department of Nephrology, Sanjay Gandhi PGIMS, Lucknow, India

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Archana Sinha

Archana Sinha

Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow, India

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Roopali Khanna

Roopali Khanna

Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow, India

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Sudeep Kumar

Sudeep Kumar

Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow, India

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Naveen Garg

Naveen Garg

Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow, India

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Satyendra Tewari

Satyendra Tewari

Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow, India

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Raj K. Sharma

Raj K. Sharma

Department of Nephrology, Sanjay Gandhi PGIMS, Lucknow, India

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Pravin Goel

Pravin Goel

Department of Cardiology, Sanjay Gandhi PGIMS, Lucknow, India

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First published: 13 June 2014
Citations: 13
Conflict of interest: None.

Abstract

Background

Endothelial dysfunction may explain increased cardiovascular risk in patients with chronic kidney disease (CKD).

Methods

Brachial artery was imaged during reactive hyperemia (endothelium-dependent, flow-mediated dilatation, FMD) and during glyceryl trinitrate-mediated dilatation (nitroglycerine-mediated dilatation, NMD, endothelium-independent) in 108 patients with CKD and three months following renal transplantation (RT) in 60 of them.

Results

Patients with CKD had significantly lower FMD vs. controls (9.1% vs. 18.3%, p < 0.001) while NMD was comparable (19.8% vs. 21.8%, p = ns). Impaired FMD (<4.5%) was observed in 26.8% patients with CKD and was more common in those on hemodialysis (HD; 28.4% vs. 15.4%) vs. those not on dialysis. FMD for patients with glomerular filtration rate (GFR) 15–60 vs. <15 mL/min/1.73 m2 was 12.9% and 8.8% (p = 0.05; respectively −29% and −52% lower vs. controls), indicating reduced FMD with increasing CKD severity. There was +72% increase in FMD following RT (9.1 to 15.7%, p < 0.001) while mean NMD was unchanged. Following RT, only 3.3% had impaired FMD.

Conclusions

Patients with CKD have endothelial dysfunction as evidenced by reduced FMD. Decreased FMD indicating worsening endothelial function was noted with increasing severity of CKD. Within three months of RT, there was significant improvement in FMD, while NMD values did not change.

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