Recognition of downhill esophageal varices in hemodialysis patients requires a high index of clinical suspicion

Downhill esophageal varices: a systematic review of the case reports

Aim: The etiologies, presentation, and management of downhill varices in the era of modern medicine are relatively under-explored and mostly limited to case reports or case series. Methods: Published case reports/series of patients ≥ 18 years old with proven/probable downhill esophageal varices were searched on Ovid MEDLINE and Ovid EMBASE for all published cases up to January 2021. Results: The mean age was 50.9 (standard deviation ± 17.6) years old for all downhill variceal cases. End-stage renal disease was the most common comorbidity (43.9%), followed by thyroid disease (12.2%), Behçet’s disease (9.8%), and pulmonary hypertension (7.3%). Dialysis catheters, central venous grafts, or additional catheters were additional risk factors (51.2%). Variceal bleeding presenting as hematemesis, melena, or both was the most common presenting symptom (80.5%). Conclusions: Dialysis catheter-associated superior vena cava obstruction resulted in an increased risk of downhill varices. Other causes include thyroid malignancies, pulmonary hypertension, and Behçet’s disease.

"Downhill" Esophageal Varices due to Dialysis Catheter-Induced Superior Vena Caval Occlusion: A Rare Cause of Upper Gastrointestinal Bleeding

"Downhill" varices are a rare cause of acute upper gastrointestinal bleeding. Rarely these varices are reported in patients receiving hemodialysis as a complication of chronic dialysis vascular access. We present a case of acute upper gastrointestinal bleeding in an individual with end-stage renal disease receiving hemodialysis. Esophagogastroduodenoscopy revealed "downhill" varices in the upper third of the esophagus without any active bleeding at the time of the procedure. An angiogram was performed disclosing superior vena caval occlusion, which was treated with balloon angioplasty. Gastroenterologists should have a high index of suspicion for these rare "downhill" varices when dealing with acute upper gastrointestinal bleeding in patients receiving hemodialysis and manage it appropriately using endoscopic, radiological, and surgical interventions.