Transcutaneous oxygen tension in flaps

Svedman, P; Jacobsson, Staffan; Ponnert, Lina; Lindell, S.‐E.

doi:10.1007/bf00269874

Chir Plastica

1982

DOI: 10.1007/bf00269874

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Transcutaneous oxygen tension in flaps

P Svedman

Staffan Jacobsson

Lina Ponnert

et al.

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Cited by 6 publications

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“…Flap monitoring methods include transcutaneous oxygen pressure (TcPO 2 ) measurement 5 , 6 and transcutaneous carbon dioxide pressure (TcPCO 2 ) measurement. 7 The instrument for measuring TcPO 2 and TcPCO 2 was originally developed to measure partial pressure of arterial oxygen (PaO 2 ) and partial pressure of arterial carbon dioxide (PaCO 2 ) with a skin probe heated to 44°C.…”

mentioning

confidence: 99%

Transcutaneous PCO2 Measurement at Low Temperature for Reliable and Continuous Free Flap Monitoring

Abe

Hashimoto

Goishi

et al. 2013

Plastic and Reconstructive Surgery Global Open

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Background:Measurement of transcutaneous oxygen pressure (TcPO2) and transcutaneous carbon dioxide pressure (TcPCO2) has been used for free flap monitoring. Because these values are obtained with sensor probes heated to 44°C, there is potential for low-temperature burns on skin flaps. We measured TcPO2 and TcPCO2 at 37°C in both animals and humans to determine the feasibility and safety of the procedure as a postoperative flap monitoring method.Methods:Twelve epigastric island flaps were elevated in rabbits, and TcPO2 and TcPCO2 were measured at 37°C before and after ligation of the pedicles. In addition, TcPO2 and TcPCO2 at 37°C were measured in healthy men. Subsequently, the method was applied to postoperative monitoring of free flaps in 49 clinical cases.Results:TcPO2 and TcPCO2 values were significantly affected by the experimental flap elevation. A rapid increase in TcPCO2 was observed with both arterial and venous occlusion. In the healthy men, TcPO2 and TcPCO2 were measurable at all skin surface sites. In the clinical cases of free flap transfer, TcPO2 values remained very low for at least 72 hours. TcPCO2 values ranged from 40 to 70 mm Hg for 72 hours in more than 80% of cases. In 2 cases, TcPCO2 values increased to more than 90 mm Hg, and exploration surgery was performed. These compromised flaps were saved by reanastomosis of the veins.Conclusions:Continuous monitoring of TcPCO2 at 37°C can provide objective information and alert doctors and nurses to the need for checking the free flap.

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mentioning

confidence: 99%

Transcutaneous PCO2 Measurement at Low Temperature for Reliable and Continuous Free Flap Monitoring

Abe

Hashimoto

Goishi

et al. 2013

Plastic and Reconstructive Surgery Global Open

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Critical comparison of transcutaneous PO₂ and tissue pH as indices of perfusion

et al. 1983

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A critical laboratory evaluation of transcutaneous PO2 monitoring and tissue pH monitoring in lower abdominal island flaps based on the superficial inferior epigastric vessels in rabbits revealed that transcutaneous PO2 values correlate poorly with tissue survival under circumstances of decreased arterial inflow. The inability of the transcutaneous PO2 monitor to accurately predict viability of the flaps in this study is attributed to physiologic changes in the microcirculation and not to instrument error. Tissue pH was, in all instances, a reliable index of the perfusion status of the flaps.

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Laser doppler surveillance of the circulation of free flaps and replanted digits

et al. 1985

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In a series of 40 clinical free flaps and replantations the laser doppler technique has been used successfully for postoperative surveillance of circulation. A uniform flow pattern was obtained from all uncomplicated cases contrasting to the flow pattern seen in cases with thrombotic complication. The laser doppler continuously records flow of the microcirculation and is able to monitor blood flow in all types of free tissue transfer presently used as well as replantations. The laser doppler has effectively diagnosed two arterial thromboses with a characteristic flow pattern. It can distinguish venous from arterial occlusion. It can record flow in skin flaps which are difficult to judge clinically and in buried flaps, where no clinical observations are possible. The laser doppler should be used in conjunction with routine clinical observations.

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Transcutaneous oxygen tension in flaps

Cited by 6 publications

References 6 publications

Transcutaneous PCO2 Measurement at Low Temperature for Reliable and Continuous Free Flap Monitoring

Transcutaneous PCO2 Measurement at Low Temperature for Reliable and Continuous Free Flap Monitoring

Critical comparison of transcutaneous PO₂ and tissue pH as indices of perfusion

Laser doppler surveillance of the circulation of free flaps and replanted digits

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Product

Resources

About

Transcutaneous oxygen tension in flaps

Cited by 6 publications

References 6 publications

Transcutaneous PCO2 Measurement at Low Temperature for Reliable and Continuous Free Flap Monitoring

Transcutaneous PCO2 Measurement at Low Temperature for Reliable and Continuous Free Flap Monitoring

Critical comparison of transcutaneous PO2 and tissue pH as indices of perfusion

Laser doppler surveillance of the circulation of free flaps and replanted digits

Contact Info

Product

Resources

About

Critical comparison of transcutaneous PO₂ and tissue pH as indices of perfusion