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Study of kidney morphologic and structural changes related to different ischemia times and types of clamping of the renal vascular pedicle
Mazzeo, Angela; Sincos, Anna Paula Weinhardt Baptista; Leite, Katia Ramos Moreira; Góes J, Miguel Angelo; Pavão, Oscar Fernando Santos dos; Kaufmann, Oskar Grau.
  • Mazzeo, Angela; Hospital Israelita Albert Einstein. São Paulo. BR
  • Sincos, Anna Paula Weinhardt Baptista; Hospital Israelita Albert Einstein. São Paulo. BR
  • Leite, Katia Ramos Moreira; Universidade São Paulo. Faculdade de Medicina. Laboratório de Urologia. BR
  • Góes J, Miguel Angelo; Hospital Israelita Albert Einstein. São Paulo. BR
  • Pavão, Oscar Fernando Santos dos; Hospital Israelita Albert Einstein. São Paulo. BR
  • Kaufmann, Oskar Grau; Hospital Israelita Albert Einstein. São Paulo. BR
Int. braz. j. urol ; 45(4): 754-762, July-Aug. 2019. tab, graf
Article in English | LILACS | ID: biblio-1019881
ABSTRACT
ABSTRACT Purpose This study aimed to study morphological and renal structural changes in relation to different ischemic times and types of renal vascular pedicle clamping. Methods Sixteen pigs were divided into two groups (n = 8) Group AV - unilateral clamping of the renal artery and vein and Group A - unilateral clamping of the renal artery only, both with the contralateral kidney used as control. Serial biopsies were performed at 0, 10, 20, 30, 40, 50, 60, 70, 80, and 90 minutes after clamping. Results there is a correlation between the occurrence of renal damage as a function of time (p <0.001), with a higher frequency of Group A lesions for cellular alterations (vascular congestion and edema, interstitial inflammatory infiltrate, interstitial hemorrhage and cell degeneration), with the exception of in the formation of pigmented cylinders that were evidenced only in the AV Group. Conclusion the number of lesions derived from ischemia is associated with the duration of the insult, there is a significant difference between the types of clamping, and the AV Group presented a lower frequency of injuries than Group A. The safety time found for Group A was 10 minutes and for Group AV 20 minutes.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Renal Artery / Renal Veins / Ischemia / Kidney / Nephrectomy Type of study: Evaluation studies Limits: Animals Language: English Journal: Int. braz. j. urol Journal subject: Urology Year: 2019 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Israelita Albert Einstein/BR / Universidade São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Renal Artery / Renal Veins / Ischemia / Kidney / Nephrectomy Type of study: Evaluation studies Limits: Animals Language: English Journal: Int. braz. j. urol Journal subject: Urology Year: 2019 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Israelita Albert Einstein/BR / Universidade São Paulo/BR