Precision Anesthetic Management of the Triple-Pathology Parturient: Graded Epidural Technique for Emergency Cesarean Section in Severe Tricuspid Regurgitation, Pulmonary Hypertension, and Systemic Neurofibromatosis. JACR. 2026;7(1):1153-1163. doi:10.37275/jacr.v7i1.856