Watch a sneak peek of Season 5 Episode 19 ''Elevator Love Letter''

Tensions are running high at Seattle Grace with all eyes on Derek as he is set to perform his first surgery after his breakdown; attention is also set on Izzie, whose medical condition requires her to undergo a difficult surgery; and Owen has another PTSD episode that injures Cristina and traumatizes both of them, throwing the future of their relationship into question, on Grey's Anatomy, THURSDAY, MARCH 26 (9:00-10:02 p.m., ET) on the ABC Television Network.

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