System and method for prevention of radiocontrast induced nephropathy
First Claim
1. A method for preventing radiocontrast induced nephropathy in a patient in response to delivering radiocontrast agent to the patient, comprising:
- locally delivering a therapeutic dose of a renal therapy agent bi-laterally to the renal arteries of a patient during exposure to the radiocontrast agent; and
monitoring the renal function of the patient.
2 Assignments
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Accused Products
Abstract
An apparatus and method particularly useful in treatments and therapies directed at the kidneys such as the prevention of radiocontrast nephropathy (RCN) arising from diagnostic procedures using iodinated contrast materials. A series of treatment schemes are provided based upon local therapeutic agent delivery to the kidneys that can be used as a prophylactic treatment for patients undergoing interventional procedures that have been identified as being at an elevated risk for developing RCN as well as for low risk patients. The methods may include pre-exposure and post contrast exposure treatments alone or in combination with the local delivery of therapeutic agents to the kidneys. Among the agents identified for such treatments are normal saline and the vasodilators papaverine and fenoldopam mesylate and appropriate dosing is provided.
115 Citations
138 Claims
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1. A method for preventing radiocontrast induced nephropathy in a patient in response to delivering radiocontrast agent to the patient, comprising:
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locally delivering a therapeutic dose of a renal therapy agent bi-laterally to the renal arteries of a patient during exposure to the radiocontrast agent; and
monitoring the renal function of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for preventing radiocontrast induced nephropathy in a patient, comprising:
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delivering a first therapeutic dose of a first renal therapy agent to the patient during a first period that is before exposure to a radiocontrast agent; and
locally delivering a second therapeutic dose of a second renal therapy agent bi-laterally to the renal arteries of the patient during a second period that is during exposure to the radiocontrast agent.
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14-131. -131. (canceled)
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132. A bilateral local renal therapy system for protecting a renal system from radiocontrast nephropathy associated with delivery of a radiocontrast agent within a vascular system of a patient, comprising:
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a catheter having a proximal end and a distal end;
a fluid agent source comprising a fluid agent, the fluid agent source coupled with the proximal end of the catheter via a fluid agent delivery port; and
first and second tips coupled with the distal end of the catheter, the first and second tips in fluid communication with the fluid agent delivery port, and configured for bilateral entry into renal arteries of the patient. - View Dependent Claims (133, 134, 135, 136, 137, 138)
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Specification