Hemodynamics in renal transplant in children with various morphological changes in the long-term post-transplant period
Introduction. Ultrasound scanning is one of the main methods of instrumental examination of patients after allogenic transplantation of kidney. The main reasons of dysfunction of the kidney transplant in long post-transplantation term are acute or chronic rejection, as well as acute and chronic neph...
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Remedium Group LLC
2021-03-01
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| author | Denis B. Ektov Mikhail I. Pykov Alexey L. Valov Maria S. Molchanova Berta L. Kushnir Aliya V. Martynenkova |
| author_facet | Denis B. Ektov Mikhail I. Pykov Alexey L. Valov Maria S. Molchanova Berta L. Kushnir Aliya V. Martynenkova |
| author_sort | Denis B. Ektov |
| collection | DOAJ |
| description | Introduction. Ultrasound scanning is one of the main methods of instrumental examination of patients after allogenic transplantation of kidney. The main reasons of dysfunction of the kidney transplant in long post-transplantation term are acute or chronic rejection, as well as acute and chronic nephrotoxicity of calcineurin inhibitors.Objective. Assessment of dopplerographic indicators of the blood flow throughout the transplanted kidney vessels in patients with preserved nitrogen excretion function under various morphological changes.Materials and methods. The study includes an analysis of the medical history of 98 children with end-stage chronic renal failure who underwent 98 allogeneic kidney transplants from a posthumous donor. There were analyzed the results of 185 percutaneous puncture biopsies and ultrasound studies of renal transplants. The analyzed data of morphological studies are divided into 4 groups. 1st group – there are no morphological changes affecting graft function. 2nd group – morphological signs of calcineurin toxicity. 3rd group – borderline damage of the graft. 4th group – acute and chronic graft rejection.Results and discussion. Indices of resistance and pulsation measured at the level of the renal artery and interlobular arteries tended to decrease in the kidneys with immunological influence and remained stable in other morphological groups. This means that, the higher the degree of hyalinosis of the arteries, the lower the indices of resistance and pulsation indices measured at the level of the common renal artery and interlobular arteries.Conclusions. The revealed tendency of a decrease in the values of the resistance index and the pulsation index at the level of the common renal artery of the interlobular arteries can be considered as one of the initial ultrasound signs that allow to speak of a decrease in the elasticity of the vascular wall. Normal indices of renal hemodynamics do not exclude the presence of pathological processes leading to graft dysfunction. |
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| language | Russian |
| last_indexed | 2024-04-09T16:44:07Z |
| publishDate | 2021-03-01 |
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| spelling | doaj.art-00c0be3f056d434996ce5b87a860dbda2023-04-23T06:56:33ZrusRemedium Group LLCМедицинский совет2079-701X2658-57902021-03-010128629310.21518/2079-701X-2021-1-286-2935507Hemodynamics in renal transplant in children with various morphological changes in the long-term post-transplant periodDenis B. Ektov0Mikhail I. Pykov1Alexey L. Valov2Maria S. Molchanova3Berta L. Kushnir4Aliya V. Martynenkova5Pirogov Russian National Research Medical UniversityBashlyaeva City Children’s Clinical HospitalPirogov Russian National Research Medical UniversityPirogov Russian National Research Medical UniversityPirogov Russian National Research Medical UniversityPirogov Russian National Research Medical UniversityIntroduction. Ultrasound scanning is one of the main methods of instrumental examination of patients after allogenic transplantation of kidney. The main reasons of dysfunction of the kidney transplant in long post-transplantation term are acute or chronic rejection, as well as acute and chronic nephrotoxicity of calcineurin inhibitors.Objective. Assessment of dopplerographic indicators of the blood flow throughout the transplanted kidney vessels in patients with preserved nitrogen excretion function under various morphological changes.Materials and methods. The study includes an analysis of the medical history of 98 children with end-stage chronic renal failure who underwent 98 allogeneic kidney transplants from a posthumous donor. There were analyzed the results of 185 percutaneous puncture biopsies and ultrasound studies of renal transplants. The analyzed data of morphological studies are divided into 4 groups. 1st group – there are no morphological changes affecting graft function. 2nd group – morphological signs of calcineurin toxicity. 3rd group – borderline damage of the graft. 4th group – acute and chronic graft rejection.Results and discussion. Indices of resistance and pulsation measured at the level of the renal artery and interlobular arteries tended to decrease in the kidneys with immunological influence and remained stable in other morphological groups. This means that, the higher the degree of hyalinosis of the arteries, the lower the indices of resistance and pulsation indices measured at the level of the common renal artery and interlobular arteries.Conclusions. The revealed tendency of a decrease in the values of the resistance index and the pulsation index at the level of the common renal artery of the interlobular arteries can be considered as one of the initial ultrasound signs that allow to speak of a decrease in the elasticity of the vascular wall. Normal indices of renal hemodynamics do not exclude the presence of pathological processes leading to graft dysfunction.https://www.med-sovet.pro/jour/article/view/6060renal transplantdoppler ultrasoundhemodynamicspercutaneous biopsykidney morphology |
| spellingShingle | Denis B. Ektov Mikhail I. Pykov Alexey L. Valov Maria S. Molchanova Berta L. Kushnir Aliya V. Martynenkova Hemodynamics in renal transplant in children with various morphological changes in the long-term post-transplant period Медицинский совет renal transplant doppler ultrasound hemodynamics percutaneous biopsy kidney morphology |
| title | Hemodynamics in renal transplant in children with various morphological changes in the long-term post-transplant period |
| title_full | Hemodynamics in renal transplant in children with various morphological changes in the long-term post-transplant period |
| title_fullStr | Hemodynamics in renal transplant in children with various morphological changes in the long-term post-transplant period |
| title_full_unstemmed | Hemodynamics in renal transplant in children with various morphological changes in the long-term post-transplant period |
| title_short | Hemodynamics in renal transplant in children with various morphological changes in the long-term post-transplant period |
| title_sort | hemodynamics in renal transplant in children with various morphological changes in the long term post transplant period |
| topic | renal transplant doppler ultrasound hemodynamics percutaneous biopsy kidney morphology |
| url | https://www.med-sovet.pro/jour/article/view/6060 |
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