53 results about "Left ventricular ejection" patented technology

A method for treating patients suffering from left ventricular dysfunction, exhibited by a left ventricular ejection fraction (LVEF) less than normal, is disclosed. The method involves applying, during diastole, for a time period of about one hour, about five days each week for at least about seven weeks, an incrementally increasing therapeutic pressure to the patients' lower extremities, from the calves through the thighs and the buttocks. The hourly treatments are carried out at incrementally increasing peak diastolic / systolic pressure ratios (D / S Ratios) in the range of about 0.4:1 up to about 0.6:1 and thereafter at a D / S Ratio in the range of 0.5:1 to 1:1 for each consecutive hourly treatment, with the proviso that the average D / S Ratio over the entire treatment regimen does not exceed about 0.9:1.

Heart failure with preserved ejection fraction (HFpEF) is a disease condition characterized by heart failure (HF) signs and symptoms, but with normal or near normal left ventricular ejection fraction (LVEF) and is not responsive to standard therapy for treatment of HF. Described herein are compositions and methods related to use of cardiosphere derived cells (CDCs) and their exosomes to improve left ventricular structure, function and overall outcome. Administration of CDCs led to improved LV relaxation, lower LV end-diastolic pressure, decreased lung congestion and enhanced survival. Lower risk of arrhythmias in HFpEF was also observed following CDC administration. Improvement of diastolic dysfunction following administration of CDC-derived exosomes was observed, along with decreased mortality. In view of these salutary effects, CDCs and CDC-derived exosomes are beneficial in the treatment of HFpEF.

The invention provides methods for (a) prolonging time to hospitalization for heart failure; (b) prolonging time to first hospitalization for heart failure; (c) reducing the total number of days a patient with heart failure spends in the hospital for heart failure for a single hospital stay (i.e., reducing the duration of a single hospital stay for a patient with heart failure); (d) reducing the total number of days a patient spends in the hospital for heart failure for multiple hospital stays (i.e., two or more hospital stays); (e) reducing the number of hospital admissions for heart failure; (f) reducing mortality and reducing hospitalizations for heart failure (e.g., the total number of days in the hospital and / or the number of hospital visits); (g) increasing the left ventricular ejection fraction in a heart failure patient; (h) treating a sexual dysfunction (e.g., erectile dysfunction and female sexual dysfunction) (j) treating a headache in a heart failure patient by administering a non-steroidal antiinflammatory compound (i.e., NSAIDs); (k) treating a heart failure patient who has a history of hypertension (but who is not currently diagnosed with hypertension); (l) improving the quality of life in a heart failure patient based on the Minnesota Living with heart failure questionnaire; (m) decreasing the levels of B-type natriuretic peptide; (n) treating hypertension in a heart failure patient; (o) lowering blood pressure in a heart failure patient; (p) treating labile hypertension; (q) treating idiopathic hypertension; (r) increasing patient compliance with medication dosing in a heart failure patient; (s) treating hypertension in a patient with a dilated heart; (t) treating ischemic disease and / or coronary artery disease; and (u) reducing cardiomegaly in a patient in need thereof comprising administering to the patient a therapeutically effective amount of (i) a hydralazine compound or pharmaceutically acceptable salt thereof, (ii) isosorbide dinitrate and / or isosorbide mononitrate, and (iii) optionally at least one compound selected from the group consisting of angiotensin converting enzyme inhibitors, β-adrenergic antagonists, angiotensin II antagonists, aldosterone antagonists, cardiac glucosides (digitalis), and diuretic compounds.

The invention provides a therapeutic composition comprising an aqueous buffer, and a therapeutic agent that improves the functioning of a diseased heart by decreasing left ventricular end-diastolic pressure and simultaneously increasing left ventricular ejection without affecting the blood pressure or heart rate.

Present application relates to methods for determining whether a subject has heart failure or is at risk of having heart failure, specifically that of heart failure with reduced left ventricular ejection fraction (HFREF) and a heart failure with preserved left ventricular ejection fraction (HFPEF), comprising determining the level of selected miRNA(s) observed in a sample obtained from the subjectand wherein an altered level of the miRNA(s) compared to control indicates that the subject has heart failure or is at risk of developing heart failure. Also encompassed are methods of determining analtered risk of death or disease progression to hospitalization and death based on alteration of selected miRNAs in a sample from the subject and kits thereof.

In an implantable medical device for detecting and / or monitoring the progression of diastolic heart failure (DHF), and a corresponding method, a parameter is measured that is indicative of left ventricular ejection fraction (LVEF), and a variable is also measured that is indicative of the workload of the patient, and a relation is determined between LVEF and the workload, and DHF is detected and / or the progression of DHF is monitored, dependent on this relation.

Heart failure with preserved ejection fraction (HFpEF) is a disease condition characterized by heart failure (HF) signs and symptoms, but with normal or near normal left ventricular ejection fraction (LVEF) and is not responsive to standard therapy for treatment of HF. Described herein are compositions and methods related to use of cardiosphere derived cells (CDCs) and their exosomes to improve left ventricular structure, function and overall outcome. Administration of CDCs led to improved LV relaxation, lower LV end-diastolic pressure, decreased lung congestion and enhanced survival. Lower risk of arrhythmias in HFpEF was also observed following CDC administration. Improvement of diastolic dysfunction following administration of CDC-derived exosomes was observed, along with decreased mortality. In view of these salutary effects, CDCs and CDC-derived exosomes are beneficial in the treatment of HFpEF.

The diagnostic support apparatus detects a pulse waveform from an animate being, and measures the time difference between the arrival of a first pulse and the arrival of a second pulse. The first pulse, is the primary left ventricular ejection pulse, and corresponds to the first peak and the second pulse, is the iliac reflection pulse and corresponds to the third peak. Data storage can be provided for storing measured time differences between the first and the second pulses for a period of at least about fifteen real time seconds to produce statistically significant arterial pulse parameter data represented by the time difference. Data relating to blood volume and / or blood volume changes are monitored to show trend changes relative to a baseline value.

The invention is a method for controlled regional reperfusion using ATP-MgCl2 after percutaneous coronary revascularization for acute myocardial infarction, the method comprising the step of administering an effective amount of ATP-MgCl2 to the step of administering an effective amount of ATP-MgCl2 to the infarct-related vessel(s), such as at a dosage level of at least 0.03 mg / kg / min. The method also includes a method for controlled regional reperfusion using ATP-MgCl2 after percutaneous coronary revascularization for acute myocardial infarction, the method comprising the steps of (a) performing cardiac catheterization and coronary angiogram; (b) identifying the infarct-related vessel; (c) performing a left ventriculogram and calculating the left ventricular ejection fraction; and (d) performing a percutaneous coronary intervention; and after percutaneous revascularization of the infarct related vessel, infusing ATP-MgCl2 intracoronary, preferably at a rate of at least 0.03 mg / kg / min through the balloon catheter.

The invention consists of a device and method for the prediction of left ventricular ejection fraction (EF) and other cardiac hemodynamic parameters using systolic time intervals in patients with narrow QRS, right bundle branch block, left bundle branch block, right ventricular and / or left ventricular cardiac pacing and in the presence of arrhythmia, such as atrial fibrillation. The device has three inputs: the ECG, a peripheral pulse and a phonocardiogram. Timing parameters are obtained from these signals to calculate a systolic function index, used for the prediction of ejection fraction. Given the invention's features it would be now possible to assess cardiac performance and specifically left ventricular ejection fraction in ambulatory patients as well as during invasive procedures such as the implant of cardiac rhythm management devices. Also, an implantable embodiment of the invention would allow constant monitoring of cardiac performance, parameter adjustment of cardiac devices and automatic drug infusion.

A method for treating patients suffering from left ventricular dysfunction is disclosed. The method involves applying, during diastole, for a time period of about one hour, at least five days each week for at least about six weeks, an incrementally increasing external therapeutic pressure sequentially to the patients' lower extremities from first the calves, then the thighs and last the buttocks. The initial hourly treatments are carried out at a peak diastolic / systolic pressure ratio (D / S Ratio) in the range of about 0.4:1 up to about 0.9:1, depending on the patient's left ventricular ejection fraction. The D / S Ratio is increased slightly during the next set of hourly treatments, the D / S Ratio is again increased slightly during the next following set of hourly treatments, the D / S Ratio is again increased slightly during the next set of hourly treatments, and finally the D / S Ratio is increased slightly and maintained during the remaining set of hourly treatments. The patient's cardiopulmonary functions preferably are monitored to determine if additional external therapeutic pressure treatments are needed.