Former Senate Majority Leader Bill Frist (R-Tenn.) arrived in Haiti Monday to volunteer his medical skills for Samaritan’s Purse, an international relief organization.“The medical need in Haiti is desperate — in particular for surgeons. Having responded in this capacity after the tsunami in Sri Lanka and following Hurricane Katrina, I decided I had to join fellow physicians from Samaritans Purse in Haiti, and offer help where I could,— Frist said in a statement released Monday.Frist was a heart surgeon before being elected to Congress, and while serving in the Senate he occasionally joined volunteer medical missions, including a stint performing surgery on gorillas at Washington’s National Zoo. Following last week’s earthquake, Haiti’s medical infrastructure has been decimated, according to news reports.A Frist spokesman said he flew Monday with about 10 other doctorsresponding to an appeal from a Haitian hospital seeking surgeons.