scholarly journals Usefulness of simultaneous measurement of brain and muscle regional oxygen saturation in shock patients: A report of three cases

2021 ◽  
Vol 9 (8) ◽  
Author(s):  
Arisa Muratsu ◽  
Tomoya Hirose ◽  
Mitsuo Ohnishi ◽  
Jotaro Tachino ◽  
Shunichiro Nakao ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Simultaneous Measurement ◽  
Regional Oxygen Saturation

scholarly journals Usefulness of Simultaneous Measurement of Brain and Muscle rSO2 (Regional Oxygen Saturation) in Shock Patients: a Report of Three Cases

2021 ◽  
Author(s):  
Arisa Muratsu ◽  
Tomoya Hirose ◽  
Mitsuo Ohnishi ◽  
Jotaro Tachino ◽  
Shunichiro Nakao ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Septic Shock ◽  
Oxygen Saturation ◽  
Muscle Tissue ◽  
Simultaneous Measurement ◽  
Oxygen Supply ◽  
Circulatory Failure ◽  
Shock State ◽  
Regional Oxygen Saturation ◽  
The Brain

Abstract BackgroundIn the field of emergency medical care, we often experience a situation in which we cannot measure pulse oximetric saturation (SpO₂) or blood pressure due to circulatory failure associated with shock. However, as we can measure rSO₂ values of the brain even in patients with shock, we hypothesized that we could evaluate the oxygen supply-demand balance between brain and muscle tissue by simultaneously measuring regional oxygen saturation (rSO₂) values of the brain and muscle tissue of patients with shock.Case presentationWe attached a TOS-OR rSO₂ monitor (TOSTEC CO., Tokyo, Japan) to 10 healthy volunteers and measured the rSO₂ values of their brain and muscle for 3 minutes. The rSO₂ values of their brain cerebral regional oxygen saturation (crSO₂) and muscle regional oxygen saturation (mrSO₂) were 77.6±1.6% and 76.2±1.3% (mean ± SD). There was little difference between crSO₂ and mrSO₂ (cerebro-musculoskeletal difference in regional saturation of oxygen; c-mDrSO₂). However, there were discernible amount of c-mDrSO₂ in three cases with shock, Case 1 showed a prolonged shock state due to septic shock caused by bacterial pneumonia. Her crSO₂ values was always higher than her mrSO₂ value, and there was a c-mDrSO₂. Case 2 showed a decrease in mean arterial pressure (MAP) with the development of septic shock caused by intestinal perforation. His crSO₂ value was higher than that of his mrSO₂, and c-mDrSO₂ increased with the decrease of his MAP. Case 3 had a low MAP due to hemorrhagic shock caused by postpartum hemorrhage. Her crSO₂ value was higher than that of her mrSO₂ and a c-mDrSO₂ was present. After resuscitation, the c-mDrSO₂ decreased with the increase in her blood pressure.ConclusionWe evaluated the usefulness of simultaneous measurement of crSO₂ and mrSO₂ as an objective and non-invasive method in shock management. Even if SpO₂ or blood pressure could not be measured due to circulatory failure associated with shock, it was possible to measure the values of crSO₂ and mrSO₂, which changed in real time with fluctuation of the blood pressure. Unlike previous monitoring devices, the rSO₂ monitor may continuously and clearly reflect the changes in local oxygen supply-demand balance.

scholarly journals The effects of ultrasound and shockwave treatment on muscle regional oxygen saturation using near-infrared spectroscopy

2018 ◽  
Vol 64 (3) ◽  
Author(s):  
Anna Lubkowska ◽  
Aleksandra Radecka ◽  
Miłosz Parchimowicz ◽  
Iwona Bryczkowska ◽  
Monika Chudecka
Keyword(s):  
Infrared Spectroscopy ◽  
Oxygen Saturation ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Ultrasound Therapy ◽  
Extracorporeal Shockwave Therapy ◽  
Extracorporeal Shockwave ◽  
Regional Oxygen Saturation ◽  
Shockwave Therapy

ABSTRAKTWstęp: Terapeutyczne fale ciśnieniowe są często stosowane w leczeniu różnych schorzeń układu mięśniowo-szkieletowego, niemniej jednak efekt biologiczny ich odziaływania wciąż nie został w pełni poznany. W przedstawionych badaniach oceniono wpływ fal dźwiękowych o różnej sile bodźca stosowanych w terapii falą ultradźwiękową (ultrasound therapy – UST) i pozaustrojową radialną falą uderzeniową (radial extracorporeal shockwave therapy – rESWT) na wysycenie tlenem tkanki mięśniowej i temperaturę powierzchniową w kontekście potencjalnego efektu troficznego przy użyciu spektroskopii bliskiej podczerwieni (near-infrared spectroscopy).Materiały i metody: Badaniem objęto 41 zdrowych ochotników, w tym 27 poddanych UST i 14 rESWT, w wieku 22–48 lat. Pomiar saturacji tkankowej i temperatury powierzchni obszaru mięśnia podgrzebieniowego wykonano 4-krotnie: bezpośrednio przed (T0) i po (T1) oraz 15 (T2) i 30 min po aplikacji bodźca (T3). Saturacje mięśni zmierzono na 2 głębokościach: 20 mm (czujnik 1 – S1) i 12,5 mm (czujnik 2 – S2).Wyniki: Wartość regionalnej perfuzji tkankowej (rSO2 [%]) istotnie zmniejszyła się natychmiast oraz po 15 i 30 min od UST. Wartości początkowe, wynoszące 71,26 ±5,47% (S1) i 88,26 ±2,89% (S2) dla odpowiednich głębokości, znacząco spadły po bodźcowaniu odpowiednio do 68,89 ±5,26% (T2) i 68,93 ±5,12% (T3) na głębokości 20 mm i 86,63 ±5,37% (T1) i 86,52 ±3,38% (T2) na głębokości 12,5 mm.Wnioski: Uzyskane wyniki wskazują, że tylko leczenie za pomocą UST ma znaczący wpływ na zmiany oksymetrii regionalnej, co tłumaczy się ich działaniem przekrwiennym i termicznym w tkankach głębokich, które z kolei indukują dysocjacje tlenu z hemoglobiny do tkanek i efekt troficzny.

Evaluation of a regional oxygen saturation catheter for monitoring SJVO2 in head injured patients

1996 ◽  
Vol 12 (4) ◽  
pp. 285-291 ◽  
Author(s):  
Ann M. Ritter ◽  
Shankar P. Gopinath ◽  
Charles Contant ◽  
Raj K. Narayan ◽  
Claudia S. Robertson
Keyword(s):  
Oxygen Saturation ◽  
Regional Oxygen Saturation ◽  
Head Injured ◽  
Injured Patients

Cerebral haemorrhage in preterm neonates: does cerebral regional oxygen saturation during the immediate transition matter?

2015 ◽  
Vol 100 (5) ◽  
pp. F422-F427 ◽  
Author(s):  
Nariae Baik ◽  
Berndt Urlesberger ◽  
Bernhard Schwaberger ◽  
Georg M Schmölzer ◽  
Alexander Avian ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Cerebral Haemorrhage ◽  
Preterm Neonates ◽  
Regional Oxygen Saturation ◽  
Immediate Transition

Simultaneous measurement of oxygen saturation and vessel diameter by imaging spectrometry

1996 ◽  
Author(s):  
Dietrich Schweitzer ◽  
Lutz Leistritz ◽  
Martin Hammer ◽  
Ulrich Bartsch ◽  
Mateusz Scibor ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Simultaneous Measurement ◽  
Vessel Diameter ◽  
Imaging Spectrometry
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