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Georg Bartsch - One of the best experts on this subject based on the ideXlab platform.
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Importance of the Renal Resistive Index in Children Suffering from Vesicoureteral Reflux
European urology, 1999Co-Authors: Christian Radmayr, Georg Bartsch, Andrea Klauser, Christoph Maneschg, Ferdinand FrauscherAbstract:Objective: in our study, we wanted to assess changes and values of the renal Resistive Index (RI) in children with vesicoureteral reflux (VUR) using color Doppler ultrasound (CDUS)
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New Onset Hypertension After Extracorporeal Shock Wave Lithotripsy: Age Related Incidence and Prediction by Intrarenal Resistive Index
The Journal of urology, 1997Co-Authors: G. Janetschek, R. Knapp, Ferdinand Frauscher, G. Höfle, Reinhard Peschel, Georg BartschAbstract:AbstractPurpose: In a recent study we found an increased Resistive Index immediately after extracorporeal shock wave lithotripsy (ESWL* *Dornier Medical Systems, Inc., Marietta, Georgia.) in patients older than 60 years, which suggests renovascular disturbance. The present 26-month followup study was undertaken to investigate the relevance of elevated Resistive Index levels and the incidence of new onset hypertension.Materials and Methods: Of the initial 76 patients 57, including 20 of the 23 at risk patients 60 or greater years, group 3), were followed for more than 26 +/− 6 months after ESWL. Followup included 2 Resistive Index measurements by Doppler ultrasound of the treated and the contralateral kidney, at least 2 blood pressure measurements 1 week apart and excretory urography as well as determination of plasma renin activity in 9 patients.Results: With 1 exception, elevated Resistive Index levels and hypertension were observed exclusively in patients older than 60 years. In these patients the resis...
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Age-Related Changes in Resistive Index Following Extracorporeal Shock Wave Lithotripsy
The Journal of urology, 1995Co-Authors: R. Knapp, Ferdinand Frauscher, G. Helweg, D. Zur Nedden, Hannes Strasser, G. Janetschek, Georg BartschAbstract:AbstractPurpose: Changes in intrarenal vascular resistance after extracorporeal shock wave lithotripsy (ESWL* *Dornier Medical Systems, Inc., Marietta, Georgia.) were studied with Doppler ultrasound techniques.Materials and Methods: In 76 patients the Resistive Index was measured at an interlobar artery before and after ESWL in the treated and contralateral kidneys. The Resistive Index levels were compared to N-acetyl-beta-D-glucosaminidase levels in 40 patients.Results: We found an age-related positive linear correlation between post-therapeutic Resistive Index increases and patient age. N-acetyl-beta-D-glucosaminidase levels were also elevated after ESWL but these elevations were not age-related.Conclusions: Elderly patients have a higher risk of post-ESWL renal tissue damage.
Ferdinand Frauscher - One of the best experts on this subject based on the ideXlab platform.
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Importance of the Renal Resistive Index in Children Suffering from Vesicoureteral Reflux
European urology, 1999Co-Authors: Christian Radmayr, Georg Bartsch, Andrea Klauser, Christoph Maneschg, Ferdinand FrauscherAbstract:Objective: in our study, we wanted to assess changes and values of the renal Resistive Index (RI) in children with vesicoureteral reflux (VUR) using color Doppler ultrasound (CDUS)
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New Onset Hypertension After Extracorporeal Shock Wave Lithotripsy: Age Related Incidence and Prediction by Intrarenal Resistive Index
The Journal of urology, 1997Co-Authors: G. Janetschek, R. Knapp, Ferdinand Frauscher, G. Höfle, Reinhard Peschel, Georg BartschAbstract:AbstractPurpose: In a recent study we found an increased Resistive Index immediately after extracorporeal shock wave lithotripsy (ESWL* *Dornier Medical Systems, Inc., Marietta, Georgia.) in patients older than 60 years, which suggests renovascular disturbance. The present 26-month followup study was undertaken to investigate the relevance of elevated Resistive Index levels and the incidence of new onset hypertension.Materials and Methods: Of the initial 76 patients 57, including 20 of the 23 at risk patients 60 or greater years, group 3), were followed for more than 26 +/− 6 months after ESWL. Followup included 2 Resistive Index measurements by Doppler ultrasound of the treated and the contralateral kidney, at least 2 blood pressure measurements 1 week apart and excretory urography as well as determination of plasma renin activity in 9 patients.Results: With 1 exception, elevated Resistive Index levels and hypertension were observed exclusively in patients older than 60 years. In these patients the resis...
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Age-Related Changes in Resistive Index Following Extracorporeal Shock Wave Lithotripsy
The Journal of urology, 1995Co-Authors: R. Knapp, Ferdinand Frauscher, G. Helweg, D. Zur Nedden, Hannes Strasser, G. Janetschek, Georg BartschAbstract:AbstractPurpose: Changes in intrarenal vascular resistance after extracorporeal shock wave lithotripsy (ESWL* *Dornier Medical Systems, Inc., Marietta, Georgia.) were studied with Doppler ultrasound techniques.Materials and Methods: In 76 patients the Resistive Index was measured at an interlobar artery before and after ESWL in the treated and contralateral kidneys. The Resistive Index levels were compared to N-acetyl-beta-D-glucosaminidase levels in 40 patients.Results: We found an age-related positive linear correlation between post-therapeutic Resistive Index increases and patient age. N-acetyl-beta-D-glucosaminidase levels were also elevated after ESWL but these elevations were not age-related.Conclusions: Elderly patients have a higher risk of post-ESWL renal tissue damage.
R. Knapp - One of the best experts on this subject based on the ideXlab platform.
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New Onset Hypertension After Extracorporeal Shock Wave Lithotripsy: Age Related Incidence and Prediction by Intrarenal Resistive Index
The Journal of urology, 1997Co-Authors: G. Janetschek, R. Knapp, Ferdinand Frauscher, G. Höfle, Reinhard Peschel, Georg BartschAbstract:AbstractPurpose: In a recent study we found an increased Resistive Index immediately after extracorporeal shock wave lithotripsy (ESWL* *Dornier Medical Systems, Inc., Marietta, Georgia.) in patients older than 60 years, which suggests renovascular disturbance. The present 26-month followup study was undertaken to investigate the relevance of elevated Resistive Index levels and the incidence of new onset hypertension.Materials and Methods: Of the initial 76 patients 57, including 20 of the 23 at risk patients 60 or greater years, group 3), were followed for more than 26 +/− 6 months after ESWL. Followup included 2 Resistive Index measurements by Doppler ultrasound of the treated and the contralateral kidney, at least 2 blood pressure measurements 1 week apart and excretory urography as well as determination of plasma renin activity in 9 patients.Results: With 1 exception, elevated Resistive Index levels and hypertension were observed exclusively in patients older than 60 years. In these patients the resis...
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Age-Related Changes in Resistive Index Following Extracorporeal Shock Wave Lithotripsy
The Journal of urology, 1995Co-Authors: R. Knapp, Ferdinand Frauscher, G. Helweg, D. Zur Nedden, Hannes Strasser, G. Janetschek, Georg BartschAbstract:AbstractPurpose: Changes in intrarenal vascular resistance after extracorporeal shock wave lithotripsy (ESWL* *Dornier Medical Systems, Inc., Marietta, Georgia.) were studied with Doppler ultrasound techniques.Materials and Methods: In 76 patients the Resistive Index was measured at an interlobar artery before and after ESWL in the treated and contralateral kidneys. The Resistive Index levels were compared to N-acetyl-beta-D-glucosaminidase levels in 40 patients.Results: We found an age-related positive linear correlation between post-therapeutic Resistive Index increases and patient age. N-acetyl-beta-D-glucosaminidase levels were also elevated after ESWL but these elevations were not age-related.Conclusions: Elderly patients have a higher risk of post-ESWL renal tissue damage.
G. Janetschek - One of the best experts on this subject based on the ideXlab platform.
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New Onset Hypertension After Extracorporeal Shock Wave Lithotripsy: Age Related Incidence and Prediction by Intrarenal Resistive Index
The Journal of urology, 1997Co-Authors: G. Janetschek, R. Knapp, Ferdinand Frauscher, G. Höfle, Reinhard Peschel, Georg BartschAbstract:AbstractPurpose: In a recent study we found an increased Resistive Index immediately after extracorporeal shock wave lithotripsy (ESWL* *Dornier Medical Systems, Inc., Marietta, Georgia.) in patients older than 60 years, which suggests renovascular disturbance. The present 26-month followup study was undertaken to investigate the relevance of elevated Resistive Index levels and the incidence of new onset hypertension.Materials and Methods: Of the initial 76 patients 57, including 20 of the 23 at risk patients 60 or greater years, group 3), were followed for more than 26 +/− 6 months after ESWL. Followup included 2 Resistive Index measurements by Doppler ultrasound of the treated and the contralateral kidney, at least 2 blood pressure measurements 1 week apart and excretory urography as well as determination of plasma renin activity in 9 patients.Results: With 1 exception, elevated Resistive Index levels and hypertension were observed exclusively in patients older than 60 years. In these patients the resis...
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Age-Related Changes in Resistive Index Following Extracorporeal Shock Wave Lithotripsy
The Journal of urology, 1995Co-Authors: R. Knapp, Ferdinand Frauscher, G. Helweg, D. Zur Nedden, Hannes Strasser, G. Janetschek, Georg BartschAbstract:AbstractPurpose: Changes in intrarenal vascular resistance after extracorporeal shock wave lithotripsy (ESWL* *Dornier Medical Systems, Inc., Marietta, Georgia.) were studied with Doppler ultrasound techniques.Materials and Methods: In 76 patients the Resistive Index was measured at an interlobar artery before and after ESWL in the treated and contralateral kidneys. The Resistive Index levels were compared to N-acetyl-beta-D-glucosaminidase levels in 40 patients.Results: We found an age-related positive linear correlation between post-therapeutic Resistive Index increases and patient age. N-acetyl-beta-D-glucosaminidase levels were also elevated after ESWL but these elevations were not age-related.Conclusions: Elderly patients have a higher risk of post-ESWL renal tissue damage.
Rengin Elsurer - One of the best experts on this subject based on the ideXlab platform.
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increased renal Resistive Index in type 2 diabetes clinical relevance mechanisms and future directions
Diabetes and Metabolic Syndrome: Clinical Research and Reviews, 2017Co-Authors: Baris Afsar, Rengin ElsurerAbstract:Type 2 diabetes is a global health challenge. In type 2 diabetes both microvascular (nephropathy, retinopathy, neuropathy) and macrovascular complications arise. In kidney, renal pathological changes leading to diabetic nephropathy are mainly secondary to atherosclerosis of the intra and extra renal arteries together with microangiopathy of the glomerular capillaries, afferent arterioles and efferent arterioles. Renal Resistive Index (RRI) is defined as a ratio of the difference between maximum and minimum (end-diastolic) flow velocity to maximum flow velocity derived from the Doppler measurements of main renal and intrarenal (segmental/interlobar) arteries. Renal Resistive Index is tightly related to renal arteriolosclerosis, and represents an integrated Index of arterial compliance, pulsatility and downstream microvascular impedance. In meantime, growing suggest that RRI has also been closely related with atherosclerosis. Most studies performed in type 2 diabetes showed RRI is increased in type 2 diabetes. In this review, we summarize the data regarding RRI with regard to performed studies, pathogenesis and prognosis, especially focusing on type 2 diabetes (T2D). We also review the data regarding the development of metabolic syndrome (MetS) and RRI.