Ideal nozzle position during pressurized intraperitoneal aerosol chemotherapy in an ex vivo model

  • JINLAN PIAO
  • , SOO JIN PARK
  • , HEESU LEE
  • , JUNSIK KIM
  • , SUNWOO PARK
  • , NARA LEE
  • , SE IK KIM
  • , MARIA LEE
  • , GWONHWA SONG
  • , JUNG CHAN LEE
  • , HEE SEUNG KIM*
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    Background/Aim: Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is known to show uneven distribution and penetration of agents based on the nozzle position. Thus, this study aimed to investigate the ideal nozzle position for maximizing drug delivery during PIPAC. Materials and Methods: We created 2 cm-, 4 cm- and 8 cmex vivo models according to the distance from the bottom to the nozzle using 21×15×16 cm-sized sealable plastic boxes. After each set of eight normal peritoneal tissues from swine were placed at eight different points (A to H), we performed PIPAC, compared the methylene blue staining areas to investigate the distribution, and estimated the depth of concentrated diffusion (DCD) and the depth of maximal diffusion (DMD) of doxorubicin. Results: In terms of distribution, the 4 cm- and 8 cm-ex vivo models showed more stained faces than the 2 cm-ex vivo model. Regarding the penetration depth, the 4 cm- ex vivo model showed the highest DCD (mean; 244.1 μm, C; 105.1 μm, D; 80.9 μm, E; 250.2 μm, G; 250.2 μm, H) and DMD (mean; 174.8 μm, D; 162.7 μm, E; 511.7 μm, F; 522.2 μm, G; 528.1 μm, H) in the most points corresponding to 62.5%. Conclusion: The ideal nozzle position during PIPAC might be halfway between the nozzle inlet and the bottom in the ex vivo model.

    Original languageEnglish
    Pages (from-to)5489-5498
    Number of pages10
    JournalAnticancer research
    Volume41
    Issue number11
    DOIs
    Publication statusPublished - 2021 Nov

    Bibliographical note

    Funding Information:
    This research was supported by Grants from the Seoul National University (No. 800-20170249; 800-20180201) and Seoul National University Hospital (No. 0620173250). Moreover, this study was supported by a grant from the Korean Gynecologic Oncology Group (No. KGOG-SNU-004).

    Publisher Copyright:
    © 2021 International Institute of Anticancer Research. All rights reserved.

    Keywords

    • Ex vivo model
    • Intraperitoneal chemotherapy
    • Nozzle
    • Peritoneal metastasis
    • Pressurized intraperitoneal aerosol chemotherapy

    ASJC Scopus subject areas

    • Oncology
    • Cancer Research

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