[Oncologic emergencies in gastric cancer patients].

Many complications frequently occur in gastric cancer patients which require urgent treatment. Oncologic emergencies in gastric cancer vary widely and include hemorrhage, perforation and obstruction due to gastric cancer tumors, obstructive jaundice, hydronephrosis, intestinal obstruction and disseminated intravascular coagulation due to advanced metastatic, recurrent, or systemic tumors, and adverse effects secondary to chemotherapy. In gastric cancer treatment, we must recognize the occurrence of oncologic emergencies resulting from gastric cancer progression and recurrence. It is important that the knowledge of advanced stages and the prognosis of gastric cancer patients be taken into consideration when treating patients in a critical state.