Overview Pre-treatment With Methylene Blue Prevent Peri-operative Reduced Systemic Vascular Resistance Status: Unknown status Trial end date: 2018-10-30 Target enrollment: Participant gender: Summary To explore the effects of pre-treatment with methylene blue on reduced perioperative vascular resistance in patients with obstructive jaundice. Phase: N/A Details Lead Sponsor: Southwest Hospital, ChinaTreatments: Methylene Blue