Method and apparatus for treatment of congestive heart failure by improving perfusion of the kidney
First Claim
1. A method to treat congestive heart failure in a patient comprising the steps of:
- a. artificially perfusing at least one kidney in the patient with a perfusion fluid by withdrawing venous blood from the patient and infusing as the perfusion fluid the blood withdrawn from the patient into at least one kidney;
b. restoration of a predetermined functional level of renal function of said kidney;
c. ceasing the artificial perfusing step after the predetermined functional level has been achieved, or a predetermined time of treatment has elapsed.
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Abstract
A method for treating congestive heart failure (CHF) has been developed that restores kidney renal functions by artificially perfusion of at least one kidney. The kidney is perfused with the patient'"'"'s blood or other suitable perfusion fluid. A catheter inserted into the aorta of the patient has a distal end that supplies the perfusion fluid into a renal artery of the patient. The catheter may be coupled to an implanted blood pump or to an external supply of perfusion pressure. The restoration of kidney function assists the heart by removing excess fluid, urine and toxin from the patient, and by normalizing the patient'"'"'s renin-angiotensin system and other neurohormonal substances. The method is applicable to treat chronic and acute CHF.
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Citations
19 Claims
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1. A method to treat congestive heart failure in a patient comprising the steps of:
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a. artificially perfusing at least one kidney in the patient with a perfusion fluid by withdrawing venous blood from the patient and infusing as the perfusion fluid the blood withdrawn from the patient into at least one kidney;
b. restoration of a predetermined functional level of renal function of said kidney;
c. ceasing the artificial perfusing step after the predetermined functional level has been achieved, or a predetermined time of treatment has elapsed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method to treat congestive heart failure in a patient comprising the steps of:
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a) artificially perfusing at least one kidney in the patient with a perfusion fluid having a perfusion fluid pressure;
b) adjusting the perfusion fluid pressure to fall within a predetermined pressure range;
c) monitoring the patient for a predetermined desired improvement in a condition related to the congestive heart failure;
d) if the desired improvement is not achieved, then changing the predetermined pressure range and repeating steps (a) and (b) until the improvement is achieved.
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Specification