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Updated: Jul 10, 2025

Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
Diagnostic utility of perfusion index in identifying radial artery embolism during hyperthermic intraperitoneal
İrem Eraslan1,2, Burak Taha Sarıoğlan3, Sinan Ünsal3
1Anesthesiology and Reanimation Department, Eskişehir Osmangazi University Hospital, Eskişehir, Turkey. iremeraslan@gmail.com.
Abstract:
Invasive arterial cannulation is a widely used method in intensive care units and operating rooms. However it has potential complications such as thrombosis, peripheral embolism, hematoma formation, and infection. The Masimo Root Radical-7 Pulse CO-Oximeter® (Masimo Corporation, Irvine, CA, USA) is a non-invasive hemodynamic monitoring device that measures perfusion index and pleth variability index, provides guidance to anaesthesiologists in the cases where hemodynamic fluctuations are expected. In this particular case, the perfusion index played a crucial role in the immediate diagnosis of radial artery embolism in a patient undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy procedure.
Insights
Non-invasive monitoring using the Masimo Root Radical-7 Pulse CO-Oximeter helped quickly diagnose radial artery embolism. This device measures perfusion index, aiding anesthesiologists during complex surgeries with expected hemodynamic changes.
Area of Science:
- Critical Care Medicine
- Anesthesiology
- Cardiovascular Monitoring
Background:
- Invasive arterial cannulation is standard in ICUs and ORs but carries risks like thrombosis and embolism.
- Non-invasive hemodynamic monitoring devices offer an alternative to mitigate these risks.
- The Masimo Root Radical-7 Pulse CO-Oximeter provides key metrics like perfusion index (PI) and pleth variability index (PVI).
Observation:
- A patient undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy experienced a complication.
- The clinical team utilized the Masimo Root Radical-7 Pulse CO-Oximeter for hemodynamic monitoring.
- The perfusion index (PI) readings were closely monitored during the procedure.
Findings:
- The perfusion index (PI) was instrumental in the rapid identification of radial artery embolism.
- Non-invasive monitoring facilitated immediate diagnosis, distinguishing it from invasive methods.
- The device's ability to detect subtle hemodynamic changes proved critical in this case.
Implications:
- Non-invasive hemodynamic monitoring, particularly PI, can enhance early detection of arterial complications.
- This case highlights the value of advanced monitoring in high-risk surgical procedures.
- Utilizing devices like the Masimo Root can potentially reduce complications associated with invasive monitoring.

