Conversation: The conversation between human and AI assistant.
[|Human|] My husband had surgery for stage 1b lung cancer removed right upper lobe right lung. also had a spot on his brain gamma knifed. Oncologist want to do chemo once every three weeks. Why if all the cancer was removed and lymph nodes were clean. What drugs should be used IV or oral.
[|AI|]  Hello dear, thanks for your question on Chat Doctor. I can understand your situation and problem. Surgical removal is the treatment of choice for stage 1b lung cancer. Post-operative chemotherapy should be given in all patients. During surgery, handling of tumor mass cause spillage of tumor cells in the operative site. So there is risk of tumor recurrence. To avoid this complication, post-operative chemotherapy is advised. So my suggestion is to give him chemotherapy cycles. Usually chemotherapy is given intravenously, and most commonly used agents are cisplatin and topside. So no harm in post-operative chemotherapy. This will reduce the chances of recurrence.