Clinical Research Directory

1\. Inclusion Criteria: 1. Patients aged 18-80 years with suspected or confirmed esophagogastric variceal bleeding 2. Confirmed cirrhosis (any etiology/Child-Pugh class) 3. Scheduled for urgent endoscopy as soon as possible following hemodynamic stabilization 4. Ability to provide written informed consent (directly or through legally authorized representative) 2\. Exclusion Criteria: 1. Hepatic encephalopathy ≥ Grade II 2. Cognitive impairment or severe anxiety disorders preventing valid assessment 3. Hemodynamic instability post-resuscitation (systolic BP \<90 mmHg) 4. Skin lesions at acupoint sites 5. Presence of electrical implants (e.g., pacemakers) 6. Allergies to TEAS electrodes or emergency medications 7. Pregnancy or lactation 8. History of long-term opioid use (\>3 months) 9. Inability to provide informed consent 10. Prior TEAS or acupuncture experience (to maintain blinding integrity) 11. Participation in another interventional trial within 30 days 3\. Dropout Criteria: 1. Severe adverse events requiring immediate termination (anaphylaxis, hemodynamic collapse, oxygen desaturation \<85%) 2. Life-threatening complications during endoscopy (esophageal perforation, cardiac arrest) 3. Inability to complete full esophagogastroduodenoscopy due to patient intolerance or technical failure 4. Voluntary withdrawal by participant or legal representative