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| 001 | 303040 | ||
| 005 | 20250723114148.0 | ||
| 024 | 7 | _ | |a 10.1016/j.euros.2025.06.007 |2 doi |
| 024 | 7 | _ | |a pmid:40688377 |2 pmid |
| 024 | 7 | _ | |a pmc:PMC12274906 |2 pmc |
| 024 | 7 | _ | |a 2666-1691 |2 ISSN |
| 024 | 7 | _ | |a 2666-1683 |2 ISSN |
| 037 | _ | _ | |a DKFZ-2025-01487 |
| 041 | _ | _ | |a English |
| 082 | _ | _ | |a 610 |
| 100 | 1 | _ | |a Egen, Luisa |0 P:(DE-He78)39f0f3f4c975c8ad6ee39b28d71df050 |b 0 |e First author |u dkfz |
| 245 | _ | _ | |a Hyperspectral Imaging Accurately Detects Renal Malperfusion Due to High Intrarenal Pressure. |
| 260 | _ | _ | |a [Amsterdam] |c 2025 |b Elsevier ScienceDirect |
| 336 | 7 | _ | |a article |2 DRIVER |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1753189034_32229 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 500 | _ | _ | |a #EA:E140#LA:E140# |
| 520 | _ | _ | |a High intrarenal pressure (IRP) is a significant concern in both endoscopic procedures and acute hydronephrosis, and may cause renal parenchymal damage, forniceal rupture, and long-term impaired renal function. Its pathomechanism and effect on renal perfusion patterns remain undetermined. This study investigates the impact of elevated IRP on renal perfusion and oxygen saturation (StO2) using hyperspectral imaging (HSI).In vivo experiments were conducted on porcine models establishing hydronephrosis on specific IRP levels (30, 50, 70, and 90 mmHg) by pressure-controlled infusion of crystalloid solution into the ureter after distal ureteral clamping. HSI data were recorded at baseline, during IRP application, and after release to measure hydronephrosis-induced changes in reflectance and perfusion in a total of 501 recordings. The results were compared with spectral patterns of renal malperfusion states from previous internal studies. In total, data of 73 pigs and 1744 HSI recordings were included.Elevated IRP significantly affected renal perfusion and oxygenation. StO2 decreased from 70.3% ± 10.9% (physiological) to 39.9% ± 9.5% in hydronephrotic kidneys. Perfusion values in hydronephrosis decreased significantly at the renal poles (6.5% ± 4.0%) compared with physiological values (34.8% ± 7.5%). A principal component analysis and machine learning classification confirmed distinct malperfusion states, with hydronephrosis resembling ischemic conditions.HSI revealed that high IRP reduces renal oxygenation and perfusion, with the poles being disproportionately affected. The results from this study provide quantitative evidence of perfusion restriction and ischemic conditions as the pathomechanism behind hydronephrosis-induced kidney damage. These findings underscore the importance of monitoring IRP during endourological procedures to mitigate renal damage and associated complications.High pressure in the kidneys during surgery or kidney disease can severely reduce blood flow and oxygen, causing damage. This study used a special camera to show this damage, especially at the end of the kidney. These findings highlight the importance of monitoring kidney pressure carefully during procedures to prevent damage to the kidney. |
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| 650 | _ | 7 | |a Animal study |2 Other |
| 650 | _ | 7 | |a Hydronephrosis |2 Other |
| 650 | _ | 7 | |a Hyperspectral imaging |2 Other |
| 650 | _ | 7 | |a Intrarenal pressure |2 Other |
| 650 | _ | 7 | |a Porcine model |2 Other |
| 650 | _ | 7 | |a Urology |2 Other |
| 700 | 1 | _ | |a Hommel, Moritz |0 P:(DE-He78)281cf3958c0da2b6d050167d3d9924ca |b 1 |u dkfz |
| 700 | 1 | _ | |a Haney, Caelan Max |0 P:(DE-He78)53b165ea04f846e16d5c4043d69a476e |b 2 |u dkfz |
| 700 | 1 | _ | |a Özdemir, Berkin |0 P:(DE-He78)a927b413230a3a580ecd5713aac14af9 |b 3 |
| 700 | 1 | _ | |a Knoedler, Samuel |b 4 |
| 700 | 1 | _ | |a Sellner, Jan |0 P:(DE-He78)c26326d6f5e4968993ff08db55ee2381 |b 5 |u dkfz |
| 700 | 1 | _ | |a Seidlitz, Silvia |0 P:(DE-He78)6f627fc52580baaa9c8dd007c7b32f8f |b 6 |u dkfz |
| 700 | 1 | _ | |a Dietrich, Maximilian |b 7 |
| 700 | 1 | _ | |a Salg, Gabriel Alexander |b 8 |
| 700 | 1 | _ | |a Nickel, Felix |b 9 |
| 700 | 1 | _ | |a Maier-Hein, Lena |0 P:(DE-He78)26a1176cd8450660333a012075050072 |b 10 |u dkfz |
| 700 | 1 | _ | |a Michel, Maurice Stephan |0 P:(DE-HGF)0 |b 11 |
| 700 | 1 | _ | |a Studier-Fischer, Alexander |0 P:(DE-He78)46294c69d1fdd85a58d4dc6643c58214 |b 12 |e Last author |u dkfz |
| 700 | 1 | _ | |a Kowalewski, Karl-Friedrich |0 P:(DE-He78)4bf55e48eb0a1cae557e0b392d01bddf |b 13 |e Last author |u dkfz |
| 773 | _ | _ | |a 10.1016/j.euros.2025.06.007 |g Vol. 78, p. 16 - 27 |0 PERI:(DE-600)3040546-4 |p 16 - 27 |t European urology open science |v 78 |y 2025 |x 2666-1691 |
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