Isaac Hanson, the eldest of the musical siblings in the band Hanson, was released Friday from hospital after undergoing lung surgery earlier this week.

The 26-year-old guitarist was rushed to the hospital Tuesday night, shortly after performing with his two younger brothers at the House of Blues in Dallas, Texas.

He had been complaining of chest and shoulder pain and was taken to Baylor University Medical Center, where he was diagnosed with a type of pulmonary embolism called “venous thoracic outlet syndrome,” the band’s spokesman Ken Phillips said.

Isaac underwent surgery and his surgeon, Dr. Bradley Grimsley, expressed his satisfaction with the results of the procedure and added that he expected the guitarist to make a full recovery.

Dr. Grimsley also anticipated Isaac would be released Friday, which indeed he was. The New York Daily News reports that the young artist could undergo further surgery. Dr. Grimsley said Isaac will need to have a rib removed in the next few months to help open his vein and prevent another clot.

The condition is not generally considered life-threatening, Grimsley said, adding that there is a risk of permanent disability if not treated quickly.

The Hanson brothers have canceled shows in Tulsa, Okla., St. Louis, Mo., and Kansas City, Mo. The band expects to resume its tour Oct. 8 in Knoxville, Tenn.

A message posted on Hanson’s website assures fans that “The band's agents and promoters are working on rescheduling the canceled dates in Tulsa, St. Louis and Kansas City and further announcements regarding possible make-up dates will be made as soon as possible.”

Isaac and his younger brothers, Taylor, 24, and Zac, 21, are all Tulsa, Okla. natives. The siblings began their musical career in the early 1990s. Their debut album, “Middle of Nowhere,” was a success and spawned the song they are best remembered for, “MMMBop,” from 1997.

The three musicians released their latest studio album, “The Walk,” on July 24, 2007, on the band's own independent label, 3CG Records.