Tissue pH Monitoring in Microsurgery: A Preliminary Evaluation of Continuous Tissue pH Monitoring As an Indicator of Perfusion Disturbances in Microvascular Free Flaps
| Autor: | Douglas J. Raskin, Melvin Spira, Melissinos Eg, Yucel Erk |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Adult
Male Microsurgery medicine.medical_specialty medicine.medical_treatment Free flap Island Flaps Surgical Flaps Occlusion medicine Animals Humans Monitoring Physiologic Skin business.industry Rats Inbred Strains Hydrogen-Ion Concentration Arterial occlusion Rats Surgery Plastic surgery Blood Blood Circulation business Perfusion |
| Zdroj: | Annals of Plastic Surgery. 11:331-339 |
| ISSN: | 0148-7043 |
| DOI: | 10.1097/00000637-198310000-00013 |
| Popis: | In an experiment using a continuous tissue pH monitoring system, selective occlusion of the vessels supplying lower abdominal island flaps in Sprague-Dawley rats resulted in predictable tissue pH changes. Arterial occlusion resulted in a rapid fall in pH. In all three experimental groups, the steepest rate of pH drop occurred during the first 30 minutes postocclusion. In a series of 9 patients who underwent microvascular free flap surgery the continuous pH monitor was employed postoperatively. Tissue pH was (and remained) normal in well-perfused free flaps. Tissue pH fell almost immediately with anastomotic failures. These findings demonstrate that pH measurement offers the microvascular surgeon a new, simple, and reliable approach to perfusion assessment in free flaps. Perhaps improved survival rates will result from earlier anastomotic exploration in compromised free flaps that exhibit falling pH values. |
| Databáze: | OpenAIRE |
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