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From Nutcracker Phenomenon to Nutcracker Syndrome: A Pictorial Review
Antonio Granata1, Giulio Distefano2, Alessio Sturiale1
1Nephrology and Dialysis Unit, "Cannizzaro" Hospital, 95026 Catania, Italy.
Diagnostics (Basel, Switzerland)
|January 14, 2021
Summary
Nutcracker syndrome involves left renal vein (LRV) compression, causing symptoms related to venous outflow obstruction. This review guides nephrologists and radiologists on diagnosis and management of this condition.
Area of Science:
- Nephrology
- Radiology
- Vascular Medicine
Background:
- Left renal vein (LRV) entrapment, or nutcracker phenomenon, occurs when the LRV is compressed extrinsically, leading to abnormal outflow into the inferior vena cava (IVC).
- Nutcracker syndrome is a symptomatic condition where clinical severity correlates with anatomical and hemodynamic abnormalities.
Purpose of the Study:
- To provide practical guidance for nephrologists and radiologists.
- To review the definition, clinical features, imaging patterns, and therapeutic approaches for nutcracker syndrome.
Main Methods:
- Literature review of the PubMed database.
- Analysis of characteristic cases from an institutional electronic database.
Main Results:
- Detailed commentary on the definition, clinical manifestations, and imaging patterns of nutcracker syndrome.
- Overview of validated therapeutic strategies for the condition.
Conclusions:
- Nutcracker syndrome requires a thorough understanding of its anatomical and hemodynamic basis for effective management.
- This review synthesizes current knowledge to aid clinicians in diagnosing and treating patients with LRV entrapment.
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