Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system
This paper proposes a new method of generating pulsatile flow using non-pulsating pumps (NPP) without modulating the rotation speed of the pump rotor. At the initial stage, this method was proposed for NPP-based cardiopulmonary bypass (CPB) systems. The method is based on parallel connection to the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Russian |
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Federal Research Center of Transplantology and Artificial Organs named after V.I.Shumakov
2019-10-01
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| Series: | Vestnik Transplantologii i Iskusstvennyh Organov |
| Subjects: | |
| Online Access: | https://journal.transpl.ru/vtio/article/view/1065 |
| _version_ | 1797871990206365696 |
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| author | A. S. Buchnev A. P. Kuleshov A. A. Drobyshev G. P. Itkin |
| author_facet | A. S. Buchnev A. P. Kuleshov A. A. Drobyshev G. P. Itkin |
| author_sort | A. S. Buchnev |
| collection | DOAJ |
| description | This paper proposes a new method of generating pulsatile flow using non-pulsating pumps (NPP) without modulating the rotation speed of the pump rotor. At the initial stage, this method was proposed for NPP-based cardiopulmonary bypass (CPB) systems. The method is based on parallel connection to the NPP shunt (input-output) on which a controlled valve is installed. This valve ensures periodically clamps and opens the shunt partially. A comparative evaluation of the operation of pumps with and without a pulsator was done on a hydrodynamic bench with simulation of heart failure (HF) conditions. The pump-shunt system was connected according to the “veinartery” CPB scheme under copulsation mode. Rotaflow (Maquet Inc.) was used as the NPP. For a comparative assessment of the hemodynamic efficiency of the method, the following were used: aortic pulsatility index Ip, energy equivalent pressure (EEP) and surplus hemodynamic energy (SHE). The indices in the pulsating mode compared with the non-pulsating mode increased: Ip by 3 times, EEP index by 3.76% and SHE index increased by 4 times. Results show that the proposed method of generating a pulsating flow is effective. |
| first_indexed | 2024-04-10T00:51:45Z |
| format | Article |
| id | doaj.art-3b5a03aa1a6d420f863efc249c199249 |
| institution | Directory Open Access Journal |
| issn | 1995-1191 |
| language | Russian |
| last_indexed | 2024-04-10T00:51:45Z |
| publishDate | 2019-10-01 |
| publisher | Federal Research Center of Transplantology and Artificial Organs named after V.I.Shumakov |
| record_format | Article |
| series | Vestnik Transplantologii i Iskusstvennyh Organov |
| spelling | doaj.art-3b5a03aa1a6d420f863efc249c1992492023-03-13T10:37:25ZrusFederal Research Center of Transplantology and Artificial Organs named after V.I.ShumakovVestnik Transplantologii i Iskusstvennyh Organov1995-11912019-10-01213697510.15825/1995-1191-2019-3-69-75805Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass systemA. S. Buchnev0A. P. Kuleshov1A. A. Drobyshev2G. P. Itkin3V.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs of the Ministry of Healthcare of the Russian FederationV.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs of the Ministry of Healthcare of the Russian FederationV.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs of the Ministry of Healthcare of the Russian FederationV.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs of the Ministry of Healthcare of the Russian Federation; Moscow Institute of Physics and TechnologyThis paper proposes a new method of generating pulsatile flow using non-pulsating pumps (NPP) without modulating the rotation speed of the pump rotor. At the initial stage, this method was proposed for NPP-based cardiopulmonary bypass (CPB) systems. The method is based on parallel connection to the NPP shunt (input-output) on which a controlled valve is installed. This valve ensures periodically clamps and opens the shunt partially. A comparative evaluation of the operation of pumps with and without a pulsator was done on a hydrodynamic bench with simulation of heart failure (HF) conditions. The pump-shunt system was connected according to the “veinartery” CPB scheme under copulsation mode. Rotaflow (Maquet Inc.) was used as the NPP. For a comparative assessment of the hemodynamic efficiency of the method, the following were used: aortic pulsatility index Ip, energy equivalent pressure (EEP) and surplus hemodynamic energy (SHE). The indices in the pulsating mode compared with the non-pulsating mode increased: Ip by 3 times, EEP index by 3.76% and SHE index increased by 4 times. Results show that the proposed method of generating a pulsating flow is effective.https://journal.transpl.ru/vtio/article/view/1065cardiopulmonary bypasscontinuous flowpulsatile flowhydrodynamic standshuntcontrolled valve |
| spellingShingle | A. S. Buchnev A. P. Kuleshov A. A. Drobyshev G. P. Itkin Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system Vestnik Transplantologii i Iskusstvennyh Organov cardiopulmonary bypass continuous flow pulsatile flow hydrodynamic stand shunt controlled valve |
| title | Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system |
| title_full | Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system |
| title_fullStr | Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system |
| title_full_unstemmed | Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system |
| title_short | Hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system |
| title_sort | hemodynamic evaluation of a new pulsatile flow generation method in cardiopulmonary bypass system |
| topic | cardiopulmonary bypass continuous flow pulsatile flow hydrodynamic stand shunt controlled valve |
| url | https://journal.transpl.ru/vtio/article/view/1065 |
| work_keys_str_mv | AT asbuchnev hemodynamicevaluationofanewpulsatileflowgenerationmethodincardiopulmonarybypasssystem AT apkuleshov hemodynamicevaluationofanewpulsatileflowgenerationmethodincardiopulmonarybypasssystem AT aadrobyshev hemodynamicevaluationofanewpulsatileflowgenerationmethodincardiopulmonarybypasssystem AT gpitkin hemodynamicevaluationofanewpulsatileflowgenerationmethodincardiopulmonarybypasssystem |