Perforator Mapping
Perforator Mapping - Related Videos
01:22
Esophageal Perforation-I: Introduction
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2025
Esophageal perforation is a severe medical condition characterized by a breach in the integrity of the esophageal wall. This breach can occur due to various factors such as trauma, medical procedures, or underlying diseases. When the esophageal wall is compromised, it allows food, fluids, and digestive juices into the chest cavity or adjacent structures, leading to potential complications and health risks. The location of esophageal perforation can vary, occurring anywhere along the esophagus.
04:43
Induction of a Subarachnoid Hemorrhage in a Mouse Model through Endovascular Perforation
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2025
The video demonstrates the induction of subarachnoid hemorrhage via endovascular perforation in a mouse model. An incision is made in the neck region of the anesthetized mouse to access the common carotid artery and its bifurcation. A filament is inserted through the arteries to perforate an intracranial artery branch, inducing subarachnoid hemorrhage.
06:22
Perforated Patch-Clamp Recording of Olfactory Sensory Neurons in Mice
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2025
This video demonstrates electrophysiological recording of olfactory sensory neurons (OSNs) in mice using a perforated patch-clamp technique. The olfactory epithelium, containing OSNs with fluorophore-tagged odor receptors, is isolated from a mouse and secured in a recording chamber. A recording pipette is clamped to the dendritic knob of an OSN, and nystatin within the pipette perforates the membrane to form electrical connectivity with the cell. Finally, another pipette is used to deliver an...
06:58
Fate Mapping
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2023
Fate mapping is a technique used to understand how embryonic cells divide, differentiate, and migrate during development. In classic fate mapping experiments, cells in different areas of an embryo are labeled with a chemical dye and then tracked to determine which tissues or structures they form. Technological improvements now allow for individual cells to be marked and traced throughout embryonic development and adulthood. This video reviews the concepts behind fate mapping, and then details a...
02:50
Perforated Patch-Clamp Recordings of Inner Ear Sensory Neuron Cell Bodies
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2025
This video demonstrates the patch-clamp technique for measuring ionic currents in inner ear sensory neuron cell bodies. It details the preparation and use of a polished patch-clamp pipette filled with an internal solution containing amphotericin B, which perforates the membrane to allow ion movement while preserving intracellular conditions. Voltage pulses are applied to trigger and record ion channel activity, providing insights into their properties and behavior.
FAQs
Clinicians evaluate each vessel’s position, caliber, course, and blood flow. Together, these findings help identify a perforator that can support the planned tissue and guide the design of a flap around a reliable vascular supply. Mapping therefore contributes more than simple localization: it provides anatomical and flow-related information for selecting and planning tissue-preserving reconstruction.
By identifying vessels that connect a source artery with the skin and underlying tissue, Perforator Mapping helps surgeons plan flap elevation without routinely sacrificing the muscle containing the source vessel. This approach can spare muscle and reduce donor-site injury while still supporting reconstruction. The mapped vascular anatomy also helps surgeons anticipate the flap’s perfusion before the operation.
Location alone does not describe whether a vessel provides useful circulation. Assessing blood flow alongside caliber and course gives clinicians a broader picture of perforator reliability for flap planning. This information can support selection of vessels more likely to perfuse the intended tissue and may contribute to improved flap perfusion during reconstruction.
Preoperative planning begins by examining the relevant region with an available imaging or Doppler method. Clinicians then identify perforators and assess their position, caliber, course, and blood flow. The resulting information guides flap design and helps the surgical team plan tissue elevation around selected vessels, with the goal of preserving muscle and limiting donor-site injury.
Available approaches include color Doppler ultrasonography, computed tomography angiography, magnetic resonance angiography, and handheld Doppler devices. These tools allow clinicians to assess perforator anatomy and flow before surgery, although the overview does not assign a specific modality to every clinical situation. Their findings can be incorporated into reconstructive planning and vessel selection.
Perforator mapping is relevant when surgeons plan reconstruction for complex wounds following trauma, cancer treatment, or congenital conditions. By supplying preoperative information about potential vessels, it helps guide perforator flap design and elevation. The intended benefits include more informed operative planning, improved flap perfusion, muscle preservation, and reduced injury at the donor site.