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NIRO200NX: Reliable Monitoring System for Buried Deep Inferior Epigastric Perforator Flap.

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Near-infrared spectroscopy (NIRO200NX) reliably monitors blood flow in buried deep inferior epigastric perforator (DIEP) flaps for breast reconstruction, improving patient outcomes.

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Area of Science:

  • Microsurgery
  • Plastic Surgery
  • Medical Devices

Background:

  • Deep inferior epigastric perforator (DIEP) flap is a common technique for breast reconstruction.
  • Monitoring blood flow in buried DIEP flaps is challenging post-surgery.
  • Near-infrared spectroscopy (NIRS) offers potential for real-time tissue oxygenation monitoring.

Purpose of the Study:

  • To evaluate the efficacy of the NIRO200NX device for monitoring blood flow in buried DIEP flaps.
  • To assess the accuracy of NIRO200NX compared to conventional methods in breast reconstruction.
  • To determine the reliability of NIRO200NX in predicting DIEP flap transfer outcomes.

Main Methods:

  • A retrospective study of 156 patients undergoing DIEP flap breast reconstruction (October 2013 - May 2022).
  • Inclusion of both exposed (57) and buried (99) type DIEP flaps.
  • Tissue oxygen index (TOI) measured by NIRO200NX alongside color check, pinprick test, and Doppler sound.

Main Results:

  • A tissue oxygen index (TOI) threshold of 50 provided optimal evaluation criteria.
  • NIRO200NX demonstrated precise judgment in all 57 exposed-type flaps.
  • For 99 buried-type flaps, NIRO200NX achieved 96 correct evaluations, with misjudgments attributed to hematoma.

Conclusions:

  • NIRO200NX is a reliable tool for monitoring DIEP flap blood flow.
  • The device aids in predicting the success of breast reconstruction using DIEP flaps.
  • This technology enhances post-operative surveillance in DIEP flap breast reconstruction.