Arteriovenous shunting and regional blood flow in myocutaneous island flaps: an experimental study in pigs
| Autor: | Jens Christian Djurhuus, Dorthe Kjølseth, Ebbe Stender Hansen, Finn Gottrup, Vibeke E. Hjortdal, Tine Brink Henriksen |
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| Rok vydání: | 1991 |
| Předmět: |
Male
medicine.medical_specialty Time Factors Swine Dermatologic Surgical Procedures Island Flaps Radioactive microspheres Surgical Flaps Abdominal wall Internal medicine medicine Animals Arteriovenous shunting Skin Analysis of Variance business.industry Muscles Blood flow Skin capillary Surgery Capillaries Shunting medicine.anatomical_structure Regional Blood Flow Cardiology Female Skin appearance business |
| Zdroj: | Plastic and reconstructive surgery. 87(2) |
| ISSN: | 0032-1052 |
| Popis: | In eight pigs, total blood flow, regional capillary blood flow distribution, and arteriovenous (AV) shunting were studied during the first 4 postoperative hours after elevation of a myocutaneous rectus abdominis island flap. Capillary blood flow and AV shunting were measured using radioactive microspheres before flap creation and 1 and 4 hours after surgery. Total blood flow, measured continuously as venous outflow, increased in the first postoperative hour (p less than 0.05). Elevation of the flap caused a slight decrease in skin capillary blood flow (p less than 0.05), whereas muscular capillary blood flow increased (p less than 0.01). AV shunting accounted for 50 percent of the total flap blood flow, whereas it was negligible in the abdominal wall prior to flap elevation. Thus stalk blood flow, skin appearance, and skin temperature may be poor indicators of nutritional capillary perfusion. However, the clinical and nutritional consequences of these findings remain to be established. |
| Databáze: | OpenAIRE |
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