5 research outputs found
Right ventricle involvement in patients with acute ST elevation myocardial infarction : Is echocardiography good enough in diagnosing it?
Publisher Copyright: Ā© 2021 Sciendo. All rights reserved.Right ventricle (RV) dysfunction in patients with ST elevation myocardial infarction (STEMI) is more common and important than previously considered. The aim of this study was to determine the incidence of RV involvement in acute STEMI by using advanced echocardiography (Echo) methods, such as RV longitudinal strain and three-dimensional (3D) ejection fraction, and to prove that RV involvement is not exclusive to right coronary artery damage in STEMI. The study group was formed of 73 patients aged 30 to 60 years with confirmed first-time acute STEMI and coronary angiography performed. Abnormality thresholds for standard and advanced Echo parameters in case of STEMI for predicted RV dysfunction were RV 3D ejection fraction ā24.5 %. Using these abnormality thresholds it was possible to detect RV dysfunction in 60% of STEMI cases. The acquired results are close to the cardiac magnetic resonance data found in literature, which is the gold standard for determination of RV systolic function. RV involvement did not depend on the damaged coronary artery, as there was no association detected (p = 0.09); therefore, RV function should be assessed in every STEMI patient, and Echo is an effective method for this purpose.publishersversionPeer reviewe
Multicentric Atrial Strain COmparison between Two Different Modalities: MASCOT HIT Study
Two methods are currently available for left atrial (LA) strain measurement by speckle tracking echocardiography, with two different reference timings for starting the analysis: QRS (QRS-LASr) and P wave (P-LASr). The aim of MASCOT HIT study was to define which of the two was more reproducible, more feasible, and less time consuming. In 26 expert centers, LA strain was analyzed by two different echocardiographers (young vs senior) in a blinded fashion. The study population included: healthy subjects, patients with arterial hypertension or aortic stenosis (LA pressure overload, group 2) and patients with mitral regurgitation or heart failure (LA volumeāpressure overload, group 3). Difference between the inter-correlation coefficient (ICC) by the two echocardiographers using the two techniques, feasibility and analysis time of both methods were analyzed. A total of 938 subjects were included: 309 controls, 333 patients in group 2, and 296 patients in group 3. The ICC was comparable between QRS-LASr (0.93) and P-LASr (0.90). The young echocardiographers calculated QRS-LASr in 90% of cases, the expert ones in 95%. The feasibility of P-LASr was 85% by young echocardiographers and 88% by senior ones. QRS-LASr young median time was 110 s (interquartile range, IR, 78-149) vs senior 110 s (IR 78-155); for P-LASr, 120 s (IR 80-165) and 120 s (IR 90-161), respectively. LA strain was feasible in the majority of patients with similar reproducibility for both methods. QRS complex guaranteed a slightly higher feasibility and a lower time wasting compared to the use of P wave as the reference
Evaluation of the Right Ventricle Function Conducted in Patients after Acute Myocardial Infarction, Using Threedimensional Echocardiography and Myocardial Strain Analysis. Summary of the Doctoral Thesis
Promocijas darbs izstrÄdÄts RÄ«gas Austrumu klÄ«niskajÄ universitÄtes slimnÄ«cÄ, stacionÄrÄ āGaiļezersā. AizstÄvÄÅ”ana: KlÄ«niskÄs medicÄ«nas promocijas padomes atklÄtÄ sÄdÄ 2021. gada 7. maijÄ 15.00 tieÅ”saistes platformÄ Zoom.Ir zinÄms, ka labÄ kambara disfunkcija ST segmenta elevÄcijas miokarda infarkta gadÄ«jumÄ ir dažÄdu komplikÄciju ā ritma traucÄjumu, kardiogÄna Å”oka u. c. ā iemesls. Disfunkcija ir visu iemeslu mirstÄ«bas, kardiovaskulÄrÄs mirstÄ«bas un sirds mazspÄjas attÄ«stÄ«bas neatkarÄ«gs prognostisks rÄdÄ«tÄjs. TomÄr klÄ«niskajÄ praksÄ labÄ kambara funkcijas izvÄrtÄÅ”anai joprojÄm tiek pievÄrsts pÄrÄk maz uzmanÄ«bas, lai gan, izmantojot jaunÄs ehokardiogrÄfijas metodes, jau ir iespÄjams pietiekoÅ”i precÄ«zi diagnosticÄt labÄ kambara funkciju.Å Ä« darba mÄrÄ·is ir izvÄrtÄt labÄ kambara sistoliskÄs funkcijas izmaiÅas pacientiem ar pierÄdÄ«tu akÅ«tu ST elevÄcijas miokarda infarktu, izmantojot trÄ«sdimensiju ehokardiogrÄfijas un miokarda deformÄcijas metodes, kÄ arÄ« atlasÄ«t visinformatÄ«vÄkos ehokardiogrÄfiskos labÄ kambara izmÄru un funkcijas parametrus lietoÅ”anai ikdienas praksÄ un izveidot labÄ kambara izvÄrtÄÅ”anas algoritmu pacientiem ar akÅ«tu ST elevÄcijas miokarda infarktu.PÄtÄ«juma ietvaros tika izveidota veselo indivÄ«du kontroles grupa un pacientu grupa ar ST elevÄcijas miokarda infarktu. Katram dalÄ«bniekam papildus ehokardiogrÄfijas izmeklÄjumam pÄc standartprotokola tika pielietotas arÄ« jaunas labÄ kambara funkcijas izvÄrtÄÅ”anas metodes ā trÄ«sdimensiju ehokardiogrÄfija ar labÄ kambara rekonstrukciju, tilpumu un izsviedes frakcijas noteikÅ”anu un miokarda gareniskÄs deformÄcijas mÄrÄ«jumi. Balstoties uz Ŕīm metodÄm, bija iespÄjams noteikt labÄ kambara izsviedes frakcijas un brÄ«vÄs sienas (visas labÄ kambara sienas, izÅemot kambaru starpsienu) gareniskÄs deformÄcijas slieksni labÄ kambara patoloÄ£ijas identificÄÅ”anai un salÄ«dzinÄt to ar kontroles grupas datiem.TrÄ«sdimensiju ehokardiogrÄfija un miokarda deformÄcijas izvÄrtÄÅ”ana ir jaunas, relatÄ«vi vienkÄrÅ”as, pietiekami jutÄ«gas un specifiskas metodes labÄ kambara disfunkcijas noteikÅ”anai pacientiem ar ST elevÄcijas miokarda infarktu. Metodes ir ievieÅ”amas ikdienas klÄ«niskajÄ praksÄ kopÄ ar tiem standarta ehokardiogrÄfijas rÄdÄ«tÄjiem, kas arÄ« izmainÄs ST elevÄcijas miokarda infarkta gadÄ«jumÄ: frakcionÄtÄm laukuma izmaiÅÄm, trikuspidÄlÄ vÄrstuļa fibrozÄ gredzena plaknes sistolisko ekskursiju un vizuÄliem labÄ kambara segmentÄrÄs sistoliskÄs funkcijas traucÄjumiem. Jaunie parametri, kas bÅ«tu jÄnosaka, ir labÄ kambara izsviedes frakcija un labÄ kambara brÄ«vÄs sienas kopÄjÄ longitudinÄlÄ deformÄcija. IzvÄrtÄjot labo kambari, nepiecieÅ”ams atcerÄties, ka tÄ funkcijas pasliktinÄÅ”anÄs var tikt novÄrota jebkuras lokalizÄcijas miokarda infarkta gadÄ«jumÄ
LabÄ kambara funkcijas izvÄrtÄÅ”ana pacientiem pÄc akÅ«ta miokarda infarkta, izmantojot trÄ«sdimensiju ehokardiogrÄfiju un miokarda deformÄcijas analÄ«zi. Promocijas darba kopsavilkums
The Doctoral Thesis was developed at Riga East Clinical University Hospital. Defence: at the public session of the Promotion Council of Clinical Medicine on 7th May, 2021 at 15.00 remotely via Zoom online meeting.It is well known that dysfunction of the right ventricle in ST segment elevation myocardial infarction causes such complications as rhythm disturbances, cardiogenic shock and others. Its presence is an independent prognostic indicator of all-cause mortality, cardiovascular mortality and development of heart failure. However, in clinical practice still too little attention is paid to the evaluation of the right ventricle function, despite the new echocardiographic methods available, which are capable of providing an accurate diagnostics of the right ventricle disfunction. The purpose of this work is to evaluate changes in the systolic function of the right ventricle in patients with proven acute ST elevation myocardial infarction by threedimensional echocardiography and myocardial strain techniques, and to select the most informative echocardiographic parameters for the size and function of the right ventricle for use in everyday practice. Based on the data gained during this study, the algorithm for the evaluation of the right ventricle function in patients with acute ST elevation myocardial infarction will be developed. A healthy individuals control group and a group of patients with ST elevation myocardial infarction were formed within the study. Each participant was examined according to standart echocardiography protocol. In each case new echocardiographic right venricle function evaluation methods also were applied ā a three-dimensional echocardiography with following right ventricle reconstruction, volume and ejection fraction determination, as well as myocardial longitudinal strain measurements. Based on these methods, by comparing the data to the control group results, it was possible to etermine the pathology threshold for the right ventricular ejection fraction and longitudinal strain to detect right ventricle disfunction in the case of acute myocardial infarction. Three-dimensional echocardiography and evaluation of myocardial strain are new, relatively simple, sufficiently sensitive and specific methods for the diagnosis of right ventricular dysfunction in patients with ST elevation myocardial infarction. The methods are to be introduced for use in everyday clinical practice along with the standard ehocardiography parameters, which also change in ST elevation myocardial infarction: fractional area change, tricuspid annular plane systolic excursion, and visual evaluation of segmental systolic function of the right ventricle. Among new parameters ejection fraction of the right ventricle and right ventricle free wall longitudinal strain have to be determined. When evaluating the right chamber, it should be remembered that its function deterioration can be observed in case of myocardial infarction of any localization
Evaluation of the Right Ventricle Function Conducted in Patients after Acute Myocardial Infarction, Using Threedimensional Echocardiography and Myocardial Strain Analysis. Doctoral Thesis
Promocijas darbs izstrÄdÄts RÄ«gas Austrumu klÄ«niskajÄ universitÄtes slimnÄ«cÄ, stacionÄrÄ āGaiļezersā. AizstÄvÄÅ”ana: KlÄ«niskÄs medicÄ«nas promocijas padomes atklÄtÄ sÄdÄ 2021. gada 7. maijÄ 15.00 tieÅ”saistes platformÄ Zoom.Ir zinÄms, ka labÄ kambara disfunkcija ST segmenta elevÄcijas miokarda infarkta gadÄ«jumÄ ir dažÄdu komplikÄciju ā ritma traucÄjumu, kardiogÄna Å”oka u. c. ā iemesls. Disfunkcija ir visu iemeslu mirstÄ«bas, kardiovaskulÄrÄs mirstÄ«bas un sirds mazspÄjas attÄ«stÄ«bas neatkarÄ«gs prognostisks rÄdÄ«tÄjs. TomÄr klÄ«niskajÄ praksÄ labÄ kambara funkcijas izvÄrtÄÅ”anai joprojÄm tiek pievÄrsts pÄrÄk maz uzmanÄ«bas, lai gan, izmantojot jaunÄs ehokardiogrÄfijas metodes, jau ir iespÄjams pietiekoÅ”i precÄ«zi diagnosticÄt labÄ kambara funkciju.Å Ä« darba mÄrÄ·is ir izvÄrtÄt labÄ kambara sistoliskÄs funkcijas izmaiÅas pacientiem ar pierÄdÄ«tu akÅ«tu ST elevÄcijas miokarda infarktu, izmantojot trÄ«sdimensiju ehokardiogrÄfijas un miokarda deformÄcijas metodes, kÄ arÄ« atlasÄ«t visinformatÄ«vÄkos ehokardiogrÄfiskos labÄ kambara izmÄru un funkcijas parametrus lietoÅ”anai ikdienas praksÄ un izveidot labÄ kambara izvÄrtÄÅ”anas algoritmu pacientiem ar akÅ«tu ST elevÄcijas miokarda infarktu.PÄtÄ«juma ietvaros tika izveidota veselo indivÄ«du kontroles grupa un pacientu grupa ar ST elevÄcijas miokarda infarktu. Katram dalÄ«bniekam papildus ehokardiogrÄfijas izmeklÄjumam pÄc standartprotokola tika pielietotas arÄ« jaunas labÄ kambara funkcijas izvÄrtÄÅ”anas metodes ā trÄ«sdimensiju ehokardiogrÄfija ar labÄ kambara rekonstrukciju, tilpumu un izsviedes frakcijas noteikÅ”anu un miokarda gareniskÄs deformÄcijas mÄrÄ«jumi. Balstoties uz Ŕīm metodÄm, bija iespÄjams noteikt labÄ kambara izsviedes frakcijas un brÄ«vÄs sienas (visas labÄ kambara sienas, izÅemot kambaru starpsienu) gareniskÄs deformÄcijas slieksni labÄ kambara patoloÄ£ijas identificÄÅ”anai un salÄ«dzinÄt to ar kontroles grupas datiem.TrÄ«sdimensiju ehokardiogrÄfija un miokarda deformÄcijas izvÄrtÄÅ”ana ir jaunas, relatÄ«vi vienkÄrÅ”as, pietiekami jutÄ«gas un specifiskas metodes labÄ kambara disfunkcijas noteikÅ”anai pacientiem ar ST elevÄcijas miokarda infarktu. Metodes ir ievieÅ”amas ikdienas klÄ«niskajÄ praksÄ kopÄ ar tiem standarta ehokardiogrÄfijas rÄdÄ«tÄjiem, kas arÄ« izmainÄs ST elevÄcijas miokarda infarkta gadÄ«jumÄ: frakcionÄtÄm laukuma izmaiÅÄm, trikuspidÄlÄ vÄrstuļa fibrozÄ gredzena plaknes sistolisko ekskursiju un vizuÄliem labÄ kambara segmentÄrÄs sistoliskÄs funkcijas traucÄjumiem. Jaunie parametri, kas bÅ«tu jÄnosaka, ir labÄ kambara izsviedes frakcija un labÄ kambara brÄ«vÄs sienas kopÄjÄ longitudinÄlÄ deformÄcija. IzvÄrtÄjot labo kambari, nepiecieÅ”ams atcerÄties, ka tÄ funkcijas pasliktinÄÅ”anÄs var tikt novÄrota jebkuras lokalizÄcijas miokarda infarkta gadÄ«jumÄ