METHOD OF ESTIMATING STATE OF MYOCARDIUM DURING WHEN CARRYING OUT OPERATION ON OPEN HEART Russian patent published in 2012 - IPC A61B5/402 A61B17/00 

Abstract RU 2444285 C2

FIELD: medicine.

SUBSTANCE: method relates to medicine, namely to cardio-vascular surgery and deals with estimation of state of myocardium by bioimpedancemetry when performing an operation on open heart. Method includes installation of sensor, which has not fewer than two electrodes, providing maximal coverage of examined part of myocardium. Measurement of electric impedance is carried out with at low from 5 to 20 kHz and high from 100 to 500 kHz frequencies. Measurements are carried out before beginning of artificial blood circulation, registering initial signal value, after clamping aorta and introduction of cardioplegic solution into coronary bed and after removal of clamp from aorta and recovery of coronary blood flow, registering current impedance values. If current impedance value, measured at low frequency, in process of introduction of cardioplegic solution is higher than initial value by 50% and more, myocardium perfusion is estimated as insufficient. If current impedance value, measured at high frequency, is by 25% and more lower than initial value, it is also considered to be evidence of insufficient myocardium protection. If after removal of clamp from aorta and blood flow recovery current impedance value, measured at high frequency, is by 85% and more lower than initial value, myocardium protection is estimated as inadequate.

EFFECT: method ensures adequate estimation of perfusion and myocardium protection and gives reasons for carrying out timely actions aimed at improvement said parameters during operation and at treatment of post-operation acute heart failure.

1 ex

Similar patents RU2444285C2

Title Year Author Number
METHOD FOR EVALUATING THE STATE OF MYOCARDIUM IN CARDIOSURGICAL INTERVENTIONS UNDER CONDITIONS OF CARDIOPLEGIC PROTECTION 2017
  • Grigorev Evgenij Valerevich
  • Plotnikov Georgij Pavlovich
  • Senokosova Evgeniya Andreevna
  • Krutitskij Sergej Sergeevich
  • Antonova Larisa Valerevna
  • Shukevich Dmitrij Leonidovich
  • Toropova Yana Gennadevna
  • Velikanova Elena Anatolevna
  • Tsepokina Anna Viktorovna
RU2651364C1
METHOD FOR PROTECTING MYOCARDIUM IN REPERFUSION PERIOD 2001
  • Pidanov O.Ju.
  • Tsekhanovich V.N.
RU2209602C2
METHOD FOR CARDIOPLEGIC ARREST (VERSIONS) 2015
  • Nikolaeva Irina Evgen'Evna
  • Izhbul'Din Ramil' Il'Dusovich
  • Plechev Vladimir Vjacheslavovich
  • Shikova Julija Vital'Evna
  • Dolganov Arkadij Aleksandrovich
RU2571058C1
METHOD OF DELIBERATE CARDIAC ARREST BEFORE AORTIC COMPRESSION IN CARDIAC SURGERIES EMPLOYING EXTRACORPOREAL CIRCULATION IN PATIENTS WITH AORTIC VALVE INCOMPETENCE 2010
  • Sibagatullin Nur Gasymovich
  • Tenin Evgenij Valentinovich
  • Jagafarov Il'Dus Rimovich
  • Zakirzjanov Munir Khaljafovich
  • Plechev Vladimir Vjacheslavovich
  • Dzhordzhikija Roin Kondrat'Evich
  • Zakirov Il'Shat Rifovich
  • Kuzbekova Nelli Nurovna
  • Zakirova Il'Sijar Avgatovna
  • Khatypov Marat Gajratovich
  • Sajfullin Rustam Robertovich
RU2432186C1
CARDIOPLEGIC SOLUTION (VERSIONS) 2014
  • Vol'Gushev Valentin Evgen'Evich
RU2574957C1
METHOD OF CARDIOPLEGIC ANTEGRADE MYOCARDIAL PROTECTION 2022
  • Gajsin Marat Radikovich
RU2803867C1
METHOD FOR MYOCARDIUM PROTECTION AGAINST REPERFUSION INJURIES IN HEART OPERATIONS (EMBODIMENTS) 2019
  • Khubulava Gennadij Grigorevich
  • Volkov Andrej Mikhajlovich
  • Romanovskij Dmitrij Yurevich
  • Biryukov Andrej Valerevich
  • Skibro Igor Rostislavovich
  • Butuzov Anton Gennadevich
  • Lyubimov Aleksandr Ivanovich
  • Naumov Aleksej Borisovich
  • Kusaj Aleksandr Sergeevich
RU2723509C1
"INFUSOL" CARDIOPLEGIC SOLUTION 2002
  • Pisarenko O.I.
  • Studneva I.M.
  • Shul'Zhenko V.S.
RU2226093C1
METHOD OF MYOCARDIUM PROTECTION DURING OPERATIONS ON HEART 2004
  • Khubulava Gennadij Grigor'Evich
  • Zhuravlev Valerij Petrovich
  • Birjukov Andrej Valer'Evich
  • Romanovskij Dmitrij Jur'Evich
RU2335290C2
METHOD FOR ESTIMATING REGIONAL BLOOD CIRCULATION, TISSUE MICROCIRCULATION AND SATURATION OF BLOOD WITH OXYGEN AND DEVICE FOR ESTIMATION OF REGIONAL BLOOD CIRCULATION, TISSUE MICROCIRCULATION AND SATURATION OF BLOOD WITH OXYGEN 2012
  • Girina Marina Borisovna
  • Girin Ivan Ivanovich
RU2580895C2

RU 2 444 285 C2

Authors

Bokerija Leonid Antonovich

Muratov Ravil' Muratovich

Movsesjan Ruben Rudol'Fovich

Bledzhjants Gevorg Armenakovich

Dates

2012-03-10Published

2010-05-07Filed