The modified Puestow or lateral pancreaticojejunostomy is the most commonly employed surgical procedure. Lateral pancreaticojejunostomy relieves chronic abdominal pain in 65%-93% of patients. Morbidity and mortality rates are generally low, averaging 20% and 2%, respectively. Long-term follow-up of patients after lateral pancreaticojejunostomy reveals that up to 50% of patients develop recurrent symptoms and 10%-35% fail to obtain pain relief.