Don't fret yet. The Huffington Post reporter quizzed Sen. Wyden's spokesman more closely. And this is what the reporter found out:

In a follow-up statement to The Huffington Post, the Senator's spokesman clarified his schedule a bit further.

"He will have to miss votes tomorrow as he has to undergo tests for next week's surgery," said Jennifer Hoelzer. "But he will be around this weekend if there are votes. He will be out all day Monday for the surgery itself, but if everything goes well, we expect him to be discharged from the hospital on Tuesday and then we will play it by ear after that."

That Wyden will be playing it "by ear" so soon after surgery is, undoubtedly, welcomed news -- not just for Democrats, who could use his help on complicated votes, but for those who know the imprint Wyden has on the legislative process and consider him one of the more indispensable thinkers and lawmakers on the Hill.