Pneumoretinopexy is an outpatient procedure in which retinal detachmentis sealed with air insufflation. Which of the follov gas is used in pneu-etitiopexy?
**Core Concept**
Pneumoretinopexy is a surgical technique used to treat retinal detachment, which involves the use of a gas bubble to seal the break in the retina. The procedure is often performed on an outpatient basis, and the choice of gas is critical for its success.
**Why the Correct Answer is Right**
The correct gas used in pneumoretinopexy is sulfur hexafluoride (SF6). SF6 is an inert gas that is used to create a gas bubble in the vitreous humor, which helps to seal the retinal break and promote reattachment of the retina. The gas bubble also helps to flatten the retina and improve vision. SF6 is absorbed by the body over time, which allows the gas bubble to gradually disappear.
**Why Each Wrong Option is Incorrect**
**Option A:** Perfluoropropane (C3F8) is another gas used in vitreoretinal surgery, but it is not typically used for pneumoretinopexy due to its slower absorption rate.
**Option B:** Air is not typically used in pneumoretinopexy due to its rapid absorption rate and the potential for complications.
**Option C:** Oxygen is not used in pneumoretinopexy due to its rapid absorption rate and the potential for increasing intraocular pressure.
**Clinical Pearl / High-Yield Fact**
Sulfur hexafluoride (SF6) is a commonly used gas in vitreoretinal surgery, including pneumoretinopexy, due to its optimal balance of bubble size and duration of action.
**Correct Answer:** C. Perfluoropropane (C3F8) is another option, but it is not the primary choice for pneumoretinopexy.