Flap Perfusion Assessment
Flap Perfusion Assessment - Related Videos
10:56
Procurement and Perfusion-Decellularization of Porcine Vascularized Flaps in a Customized Perfusion Bioreactor
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08:18
Engineered Vascularized Muscle Flap
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To date, thick tissue defects are typically reconstructed by applying autologous tissue flaps or engineered tissues. In this protocol, we present a new method for engineering vascularized tissue flap bearing an autologous pedicle, to serve as a substitute to autologous flaps.
07:57
An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
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This protocol describes the surgical technique for harvesting a human perforator flap model based on the deep inferior epigastric artery pedicle, intended for experimental research.
01:17
Assessment of Diffusion and Perfusion
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Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed. The Role of Diffusion in Respiration Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
09:29
Technique of Subnormothermic Ex Vivo Liver Perfusion for the Storage, Assessment, and Repair of Marginal Liver Grafts
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Marginal grafts, such as fatty livers, grafts from older donors, or livers retrieved after cardiac death (DCD) tolerate conventional, cold static storage only poorly. We developed a novel model of subnormothermic ex vivo liver perfusion for preservation, assessment, and repair of marginal liver grafts prior to transplantation.
FAQs
A flap can become compromised because blood does not enter adequately through the arterial supply or because venous drainage is impaired. Evaluating both pathways gives clinicians a more complete picture of tissue viability than examining a single circulation component. This distinction helps guide recognition of vascular compromise and supports timely consideration of corrective measures such as flap repositioning or vascular revision.
Clinicians review skin color, temperature, capillary refill, and bleeding as direct bedside findings. These observations provide practical information about whether the transferred tissue remains viable and can reveal changes that warrant closer evaluation. Because no single finding represents the entire circulation, bedside examination may be combined with Doppler ultrasound or fluorescence imaging when additional assessment is needed.
Handheld Doppler ultrasound and indocyanine green fluorescence imaging provide tool-based assessment alongside clinical examination. Their role is to help evaluate blood flow and support assessment of arterial inflow or venous drainage. Using these methods with visible and tactile findings can improve recognition of inadequate perfusion before tissue injury becomes irreversible, supporting earlier clinical action.
Clinicians first consider bedside findings such as color, temperature, capillary refill, and bleeding, then use an available vascular assessment tool when the findings require clarification. The goal is to identify inadequate perfusion early, determine whether arterial inflow or venous drainage may be affected, and decide whether intervention, including repositioning or vascular revision, is needed.
The assessment is particularly important after free-tissue transfer, when postoperative monitoring must detect changes in the transferred flap before irreversible injury develops. It gives clinicians a structured way to combine examination findings with vascular tools during follow-up. Early recognition of compromise can create an opportunity for corrective intervention and may reduce the likelihood of partial or complete flap loss.
By identifying inadequate blood flow before irreversible tissue injury develops, flap perfusion assessment supports faster recognition of vascular compromise. Clinicians may then respond with measures such as flap repositioning or vascular revision. In reconstructive medicine, this approach contributes to safer free-tissue transfer, strengthens postoperative monitoring, and helps reduce complications involving partial or complete flap loss.