CA2022018A1 - Hemodynamically responsive system for treating a malfunctioning heart - Google Patents
Hemodynamically responsive system for treating a malfunctioning heartInfo
- Publication number
- CA2022018A1 CA2022018A1 CA 2022018 CA2022018A CA2022018A1 CA 2022018 A1 CA2022018 A1 CA 2022018A1 CA 2022018 CA2022018 CA 2022018 CA 2022018 A CA2022018 A CA 2022018A CA 2022018 A1 CA2022018 A1 CA 2022018A1
- Authority
- CA
- Canada
- Prior art keywords
- pressure
- right ventricular
- mean pulmonary
- treating
- defibrillation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
A system for and method of treating a malfunctioning heart is based on hemodynamics, the pressure at a site in a patient's circulatory system being sensed. A signal is developed representative of mean pulmonary artery pressure (MPAP), mean pulmonary vein pressure (MPVP), mean pulmonary capillary wedge pressure (MPCWP), right ventricular systolic pressure (RVSP), right ventricular end diastolic pressure (RVEDP), or right ventricular pulse pressure (RVPP). A
signal representative of fixed or varying baseline pressure is provided and if the short term current pressure differs therefrom by a predetermined value, an indication of hemodynamic compromise, cardioversion /-defibrillation is effected. In a second embodiment, the determination of whether the difference between fixed or varying baseline pressure and current pressure is undertaken after a rate criteria (for example a heart rate above 155 b.p.m.) has been met. In a third embodiment, the rate and pressure criteria both must exist at the same time, before cardioverting/-defibrillation is initiated. In a fourth embodiment, a microprocessor is used. The system may be integrated with antitachycardia and/or antibradycardia pacemakers.
signal representative of fixed or varying baseline pressure is provided and if the short term current pressure differs therefrom by a predetermined value, an indication of hemodynamic compromise, cardioversion /-defibrillation is effected. In a second embodiment, the determination of whether the difference between fixed or varying baseline pressure and current pressure is undertaken after a rate criteria (for example a heart rate above 155 b.p.m.) has been met. In a third embodiment, the rate and pressure criteria both must exist at the same time, before cardioverting/-defibrillation is initiated. In a fourth embodiment, a microprocessor is used. The system may be integrated with antitachycardia and/or antibradycardia pacemakers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2022018 CA2022018C (en) | 1989-07-27 | 1990-07-26 | Hemodynamically responsive system for treating a malfunctioning heart |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US385,544 | 1989-07-27 | ||
US07/385,544 US4984572A (en) | 1988-08-18 | 1989-07-27 | Hemodynamically responsive system for and method of treating a malfunctioning heart |
CA 2022018 CA2022018C (en) | 1989-07-27 | 1990-07-26 | Hemodynamically responsive system for treating a malfunctioning heart |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2022018A1 true CA2022018A1 (en) | 1991-01-28 |
CA2022018C CA2022018C (en) | 2000-11-07 |
Family
ID=25674219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2022018 Expired - Fee Related CA2022018C (en) | 1989-07-27 | 1990-07-26 | Hemodynamically responsive system for treating a malfunctioning heart |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2022018C (en) |
-
1990
- 1990-07-26 CA CA 2022018 patent/CA2022018C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2022018C (en) | 2000-11-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |