During surgical exploration for hydatid cyst of the liver, any of the following agents can be used as scolicidal agent except –
**Core Concept**
The management of hydatid cysts of the liver involves surgical intervention, and scolicidal agents are used to kill the parasites (Echinococcus granulosus) and prevent recurrence. The choice of scolicidal agent is crucial to avoid damage to the surrounding liver tissue.
**Why the Correct Answer is Right**
Hypochlorite solution (sodium hypochlorite) is a commonly used scolicidal agent due to its high efficacy in killing the Echinococcus granulosus parasites. It works by releasing free chlorine ions, which disrupt the parasite's cell membrane and ultimately lead to cell death. The recommended concentration of hypochlorite solution is 0.5-1.5%.
**Why Each Wrong Option is Incorrect**
**Option A:** Formaldehyde is not typically used as a scolicidal agent due to its toxicity and potential for causing liver damage.
**Option B:** Glutaraldehyde is not commonly used in surgical procedures due to its high toxicity and potential for causing anaphylaxis.
**Option C:** Ethyl alcohol is not effective as a scolicidal agent against Echinococcus granulosus parasites.
**Clinical Pearl / High-Yield Fact**
When using scolicidal agents, it's essential to follow strict protocols to avoid damage to the surrounding liver tissue. Hypochlorite solution is often diluted with water to reduce its toxicity and prevent tissue damage.
**Correct Answer:** C. Ethyl alcohol