Macro and microscopic comparison of the upper pole of the spleen with the lower pole in partial splenectomy

Paulo, Lucas Nagib Lemos; Alexander, Daniel Robert; Vallandro, Elisa Ines Demuner; Benevides, Raquel de Azevedo; Motta, L; Paulo, Marcela Souza Lima; Paulo, Danilo Nagib Salomão

doi:10.1590/s0102-865020200090000002

Cited by 1 publication

(2 citation statements)

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“…A study was conducted in 2020 21 in which the surgical techniques of Paulo et al . 16 and Petroianu 22 were performed for the removal of the middle portion of the spleen and its supply vessels, maintaining the UP and the LP of the organ.…”

Section: Discussionmentioning

confidence: 99%

“…Paulo’s most recent study 21 , conducted in 2020, compared the viability of the upper pole (UP) and lower pole of the spleen 80 days after partial splenectomy, which did not present significant statistical difference and were both viable. Although the study monitored animals for an extended period of time, there were no studies that monitored animals after SSPUP surgery for a similar period.…”

Section: Introductionmentioning

confidence: 99%

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Study of the upper pole after subtotal splenectomy in rats

et al. 2022

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Purpose: To evaluate macro/microscopic viability of the upper pole (UP) in rats after 80 days of subtotal splenectomy preserving the upper pole (SSPUP). Methods: Twenty-five male Wistar rats were submitted to SSPUP. After 80 days, the rats were euthanized, and the remaining UP was evaluated macroscopically regarding appearance, color, consistency, length, width, thickness, and presence of fibrosis/necrosis; and microscopically regarding presence of red and white pulp, fibrosis/necrosis. Results: Two rats died during surgery and were removed from the statistical analysis. There was statistically significant increase in length and width between the pre and postoperative in the experimental group, with no significant difference in thickness. In the manipulation group, the macroscopic appearance of the spleen was normal in pre and postoperative, with viability preserved. In the experimental group, two UP of the spleen were not found during the second surgery. Macroscopically, it was observed absence of fibrosis and necrosis in all cases. Microscopically, the white and red pulp were intact in both groups. Two spleens of rats in the manipulation group presented areas with fibrosis and necrosis focus, which were not enough to be considered inviable. Conclusions: The UP of the spleen remained viable in 91.3% of the cases.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%