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US 10,881,541 B1Granted
Systems and methods for treating venous compression/obstruction syndromes
OwnerKrishna Rocha-Singhinventor
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Abstract
Apparatus and methods are provided for treating patients exhibiting symptoms of hypertension, isolated systolic hypertension, heart failure with preserved ejection fraction, May-Thuner Syndrome or dyspnea by diagnosing and reducing narrowing of a patient's iliac vein caused by extrinsic localized compression using a stent having circumferential differential radial stiffness and delivery catheter for aligning and deploying such stents.
Claims10
A method of treating heart failure with preserved ejection fraction (HFpEF), May-Thuner Syndrome, or other venous compression/obstruction syndromes, the method comprising the steps of:
- identifying a patient as presenting with symptoms of at least one of heart failure with preserved ejection fraction, May-Thuner Syndrome or a venous compression/obstruction syndrome;
- performing a non-invasive test to assess presence of impaired iliac venous blood flow;
- if the non-invasive test indicates impaired iliac venous blood flow, performing a venogram to identify an area of localized narrowing of a patient's iliac vein;
- transvascularly positioning a stent having a circumferential differential radial stiffness within the patient's iliac vein;
- orienting the stent so that the circumferential differential radial stiffness is aligned with the area of localized narrowing of the patient's iliac vein;
- and
- deploying the stent within the patient's iliac vein to reduce the localized narrowing of the patient's iliac vein.
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Dependencies are inferred from the claim text.