What should you know about an AeroForm tissue expander?

It may be used during staged breast reconstruction after breast surgery. Expansion creates space for a later implant, and the device is normally removed during a subsequent operation.

Unlike an expander filled by injections through a port, the AeroForm system contains a reservoir of compressed carbon dioxide. A matched remote controller communicates with the implanted device so that prescribed small amounts of gas can be released into the expander.

As expansion progresses, the chest skin and soft tissue gradually accommodate the changing shape. Tightness, pressure or temporary discomfort can occur. The reconstructive surgeon sets the plan and checks healing, breast shape and tissue condition before progression or exchange surgery.

Follow the surgeon's instructions for operating the controller, incision care, supportive clothing and activity. Use only the controller assigned to your device, keep it stored as directed and do not repeat an attempted expansion unless your team has explained what to do.

Attend planned reviews even when recovery feels straightforward. Before imaging, security screening, air travel or another procedure, tell the relevant professional that you have an implanted expander and carry any device information supplied by the surgical team. Restrictions can depend on the device and stage of reconstruction.

Call the breast reconstruction team promptly for increasing redness, warmth, swelling, wound drainage, fever, worsening pain, a sudden change in breast shape or skin that becomes unusually pale, dark or tense. Also report controller errors or an expander that seems to change without an intended activation.

Seek urgent medical care for severe chest pain, sudden shortness of breath, fainting, rapidly expanding swelling or heavy bleeding. Do not try to press, puncture, reposition or remove the implanted device yourself.

Confirm how and when to use the controller, which sensations are expected, what activities or travel require special planning, and whom to call if an activation fails. Ask what determines readiness for exchange surgery and whether radiotherapy or other cancer treatment changes the reconstruction plan.