16.56 Results of ventricular functions with equilibrium radionuclide ventriculography at before and after angioplasty in single left anterior descending artery disease: importance of the right ventricle

2001 ◽  
Vol 8 (1) ◽  
pp. S110-S110
Author(s):  
E ENTOK ◽  
Y CAVUSOGLU ◽  
A UNALIR ◽  
E VARDARELY ◽  
B TIMURALP
Keyword(s):  
Right Ventricle ◽  
Radionuclide Ventriculography ◽  
Left Anterior Descending Artery ◽  
Before And After ◽  
Artery Disease ◽  
The Right ◽  
Ventricular Functions

scholarly journals Evaluation of the morphology and mechanics of the right ventricle using echocardiography before and after transcatheter balloon pulmonary angioplasty in patients with chronic thromboembolic pulmonary

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
KIRILL Malikov ◽  
MARINA Kirichkova ◽  
MARIA Simakova ◽  
NARECK Marukyan ◽  
OLGA Moiseeva
Keyword(s):  
Pulmonary Artery ◽  
Right Ventricle ◽  
Pulmonary Artery Pressure ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Reverse Remodeling ◽  
Free Wall ◽  
Artery Pressure ◽  
Balloon Pulmonary Angioplasty ◽  
Before And After ◽  
The Right

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Chronic thromboembolic pulmonary hypertension (CTEPH) leads to a progressive increase in pulmonary vascular resistance (PVR) and pulmonary artery pressure (PAP) with the development of severe dysfunction of the right heart and heart failure. Mortality for three years with an average pressure in the pulmonary artery (PA) of more than 50 mmHg is more than 90%. Balloon pulmonary angioplasty (BPA) has a significant advantage over other methods of surgical treatment, but it requires the determination of additional non-invasive markers of effectiveness. Transthoracic echocardiography (TTE) remains the main method for assessing the morphology and function of the heart. Purpose Compare different indicators reflecting the severity of CTEPH with TTE indicators before and after BPA. To evaluate the effectiveness of using BPA for the treatment of patients with CTEPH using routine TTE and speckle tracking mode. Materials and methods For 18 months 30 patients without concomitant cardiovascular pathology were subjected to several BPA sessions. Before treatment, 50% of patients belonged to the 3 CTEPH functional class (FC), 40% to 2 FC, 10% to 1 FC. The average number of sessions was 4.7 ± 1.3. Before the first BPA and after the last, all the patients were performed: six-minute walk test (6MWT, metres), Borg scale (in points), test for NT-proBNP (pg/ml); TTE with assessment of the right ventricle (RV) and left ventricle (LV) including areas of the right atrium (aRA, cm2), mean pulmonary artery pressure (PUPM,mmHg),RV free wall strain (GLSFW, %), RV free wall strain rate (GLSRFW, sm/sec), RV free wall postsystolic shortening (PSSFW, %), tricuspid annular plane systolic excursion (TAPSE, sm), tricuspid annulus systolic velocity (TASV, sm/sec). Results. Before the first BPA session, the 6MWT in the patient group averaged 315.9 ± 9.08 metres, after - 439.5 ± 11.45 m; the Borg from 5.4 ± 0.94 points decreased to 4 ± 1.01 points; NT-proBNP before the treatment was 1513 ± 13.01 pg/ml, after - 171 ± 6.09; according to TTE the ratio of RV/ LV before and after treatment was 1.31 ± 0.02 and 0.97 ± 0.04; aRA was 29.3 ± 4.87 and 22.3 ± 3.53 cm2; basal RV - 52 ± 5.11 and 44 ± 7.26 mm; PUPM decreased from 76.6 ± 7.65 to 31.3 ± 3.78 mmHg; GLSFW from -14.69 ± 2.33 came to 17.5 ± 3.45 %; GLSRFW with -0.9 ± 0.09 to -1.7 ± 0.11 cm/sec; TAPSE from 16.7 ± 1.87 to 18.2 ± 2.34 cm; TASV from 10.11 ± 1.45 to 12.25 ± 1.98 cm/s, PSSFW before treatment was -18.4 ± 1.2%, after treatment in 66% of patients disappeared, in 34% became an average of 17.4 ± 0.9% The distribution of STEPH FC has also changed. Conclusion. BPA leads to an improvement in the tolerance of physical activity, clinical indicators, and parameters of central hemodynamics in the pulmonary circulation, evaluated according to direct manometry, and leads to reverse remodeling of the RV in the long term. Performing a staged BPA leads to an improvement in the functional parameters of contractility of the RV.

scholarly journals Velocity Vector Imaging Assessment of Functional Change in the Right Ventricle during Transcatheter Closure of Atrial Septal Defect by Intracardiac Echocardiography

2020 ◽  
Vol 9 (4) ◽  
pp. 1132
Author(s):  
Se Yong Jung ◽  
Jae Il Shin ◽  
Jae Young Choi ◽  
Su-Jin Park ◽  
Nam Kyun Kim
Keyword(s):  
Right Ventricle ◽  
Atrial Septal Defect ◽  
Velocity Vector ◽  
Septal Defect ◽  
Transcatheter Closure ◽  
Intracardiac Echocardiography ◽  
Functional Change ◽  
Longitudinal Displacement ◽  
Before And After ◽  
The Right

The functional change of the right ventricle (RV) after atrial septal defect (ASD) via transcatheter closure is well known. We assessed the immediate RV functional change using velocity vector imaging (VVI) with intracardiac echocardiography (ICE). Seventy-four patients who underwent transcatheter closure of an ASD were enrolled. VVI in the “home view” of ICE showing the RV was obtained before and after the procedure. Velocity, strain, strain rate (SR), and longitudinal displacement were analyzed from VVI data, and the changes of these parameters before and after the procedure were compared. The velocity of the RV decreased after ASD transcatheter closure (3.97 ± 1.48 to 3.56 ± 1.4, p = 0.024), especially in the RV inlet and outlet. The average strain decreased (−19.21 ± 5.79 to −16.87 ± 5.03, p = 0.002), as did the average SR (−2.28 ± 0.64 to −2.03 ± 0.61, p = 0.006). The average longitudinal displacement did not differ. With the VVI technique, we could clearly observe RV functional change immediately after transcatheter closure of the ASD. RV functional change with regional difference may reflect the heterogeneity of volume reduction and suggest subclinical RV dysfunction. These findings can enhance our understanding of the physiologic changes in the RV during reverse remodeling.

Assessment of Regional Wall Motion in Coronary Artery Disease Using Radionuclide Methods

1978 ◽  
Vol 17 (05) ◽  
pp. 221-224 ◽  
Author(s):  
O. Pachinger ◽  
H. Sochor ◽  
P. Probst ◽  
G. Joskowicz ◽  
F. Kaindl ◽  
...  
Keyword(s):  
Wall Motion ◽  
Radionuclide Angiography ◽  
Radionuclide Ventriculography ◽  
Regional Wall Motion ◽  
Normal Subjects ◽  
Regional Wall ◽  
Normal Mean ◽  
Contrast Angiography ◽  
Artery Disease ◽  
The Right

72 patients with CAD, 10 patients with congestive cardiomyopathies and 10 normal subjects were evaluated by radionuclide angiography. Comparison with contrast angiography showed good results for LVEF (r = 0.83). Regional asynergies observed in the radionuclide angiography correlated well with defects in thallium scintigrams. Extent of abnormal wall motion was measured and compared with normals, appreciating the deviation from the normal mean radial shortening. Good correlation could be demonstrated with radionuclide ventriculography. In 80% of congestive cardiomyopathies the right ventricle wall became visible in the thallium scintigram.

scholarly journals Transthoracic echocardiographic assessment of the right ventricle before and after caesarean delivery: A preliminary investigation

2020 ◽  
Vol 48 (2) ◽  
pp. 143-149
Author(s):  
Abirami Kumaresan ◽  
Alexander D Shapeton ◽  
Hong-mei Yuan ◽  
Philip E Hess
Keyword(s):  
Right Ventricle ◽  
Brain Natriuretic Peptide ◽  
Right Ventricular ◽  
Natriuretic Peptide ◽  
Caesarean Delivery ◽  
Troponin T ◽  
Preliminary Investigation ◽  
Left Ventricular ◽  
Before And After ◽  
The Right

Transthoracic echocardiographic evaluation of the right ventricle is more difficult than the left ventricle and has not been well characterised in the parturient during delivery. As a preliminary investigation, our goal was to use bedside transthoracic echocardiography to evaluate right ventricular myocardial function before and after caesarean delivery. Term parturients undergoing caesarean delivery under spinal anaesthesia were enrolled. Echocardiography was performed pre- and postoperatively. Assessment of myocardial function included longitudinal myocardial strain using 2D-speckle tracking for both ventricles, and fractional area change for the right ventricle. Troponin-T, creatine kinase-muscle/brain and brain natriuretic peptide were measured pre- and postoperatively. One hundred patients were enrolled; 98 completed the study. Adequate images from both timepoints (pre- and postoperatively) were obtained in 85 patients for left ventricle assessment, and 66 for the right ventricle. Right ventricular fractional area change (mean (standard deviation)) (24.9% (8.9%) to 24.9% (9.2%); P = 0.99) and strain (−19.7% (6.8%) to −18.1% (6.5%); P = 0.08) measurements suggested mild baseline dysfunction and did not change after delivery. Left ventricular strain values were normal and unchanged after delivery (−23.8% (7.4%) to −24.3% (6.7%); P = 0.51). One patient had elevated troponin-T and demonstrated worse biventricular function. Elevation of brain natriuretic peptide ( n=7) was associated with mildly decreased left ventricular strain, but creatine kinase-muscle/brain ( n=4) was not associated with consistent changes in cardiac function. Further investigations into peripartum right ventricular function are required to validate the findings in this preliminary study. Findings of baseline mild right ventricular dysfunction and functional changes associated with troponin-T and brain natriuretic peptide warrant rigorous investigation.

scholarly journals Contractile Strength during Variable Heart Duration Is Species and Preload Dependent

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Carlos A. A. Torres ◽  
Paul M. L. Janssen
Keyword(s):  
Steady State ◽  
Right Ventricle ◽  
Cardiac Contractility ◽  
Beagle Dogs ◽  
Fixed Rate ◽  
Optimal Length ◽  
Average Force ◽  
Before And After ◽  
The Right ◽  
Nonsignificant Decrease

We investigate the effect of beat-to-beat variability on cardiac contractility. Cardiac trabeculae were isolated from the right ventricle of rabbits and beagle dogs and stimulated to isometrically contract, alternating between fixed steady state versus variable interbeat intervals. Trabeculae were stimulated at physiologically relevant frequencies for each species (dog 1 and 4 Hz; rabbit 2 and 4 Hz) intercalating fixed periods with 40% variability. A subset of the trabeculae (at 90% of optimal length) was stretched prior to stimulation between 5 and 13% and stimulated at the same frequencies with a fixed versus 40% variation. Fixed rate response at the same base frequency was measured before and after each variable period and the average force reported. In canine preparations no change in force was observed as a result of the imposed variability in beat-to-beat duration. In the rabbit, we observed a nonsignificant decrease in force between fixed and variable pacing at both 2 and 4 Hz (n= 8) when 40% variability was introduced. When a 5% and 13% stretch was applied, the correlation coefficient sharply increased, indicating a more prominent impact of the prebeat duration on the following cycle with higher preload.

Right ventricle function longitudinal evaluation after norwood procedure: comparison between right ventricle-pulmonary artery shunt and blalock-taussing shunt

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
N Borrelli ◽  
J Sabatino ◽  
M Avesani ◽  
M Josen ◽  
A Fraisse ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Right Ventricle ◽  
Surgical Techniques ◽  
Norwood Procedure ◽  
Number Of Patients ◽  
Before And After ◽  
Shunt Group ◽  
The Right ◽  
The Impact ◽  
Rv Function

Abstract Background Norwood procedure represents the first of three surgical steps toward Hypoplastic left heart syndrome (HLHS) complete palliation. Two are the main surgical techniques allowing the reconstruction of Norwood circulation: the right ventricle-pulmonary artery shunt (RVPAS) and the modified Blalock-Taussing shunt (mBTS). However, still little is known about the impact on right ventricle (RV) function of the required ventriculotomy for the RVPAS. Purpose The aim of the study was to investigate the changes in RV function in HLHS patients after RVPAS vs mBTS. Methods The cohort included 27 consecutive HLHS patients (10 in the modified Blalock-Taussig shunt group and 17 in the RVPAS group) who successfully underwent Norwood procedure in a single tertiary paediatric cardiology centre. Longitudinal strain (LS) and strain rate (LSR), tricuspid annulus peak systolic excursion (TAPSE) and fractional area change (FAC) were evaluated in all patients before Norwood and in three different breakpoints in the steady state after Norwood procedure (30 days after Norwood, 90 days after Norwood, 140 days after Norwood). Results Ventricular loading conditions (diuretic treatment, blood pressure and tricuspid regurgitation) were similar in both groups. No significant differences were found at different time points between RVPAS and mBTS group in terms of LS, LSR, TAPSE and FAC. However, when we compared RV function before and after Norwood procedure, 90 days after the procedure, patients who did not undergo RV ventriculotomy (mBTS group) showed significant improvement in LS compared to pre-surgical assessment (mBTS: +27.35±43.47% vs RVPAS: −8,20±25.25%, p=0,03). This finding was consistent but no longer statistically significant at 140 days after Norwood (mBTS: +13.81±21.99% vs RVPAS: −4.90±27.97%, p=0,12). Conclusion After Norwood procedure mBTS patients showed a significant increase in LS when compared with patients who underwent RVPAS. This finding was consistent but no longer significant at 140 days after Norwood probably because the number of patients was too small to reach a significant level. These data support the use of LS in HLHS patient's evaluation and may be of value to find a patient-tailored timing for the second surgical stage. TAPSE, FAC, LS and LSR trends Funding Acknowledgement Type of funding source: None

scholarly journals Left main coronary artery atresia complicated by fistulae between the left anterior descending artery and the right ventricle

2018 ◽  
Vol 11 (1) ◽  
pp. bcr-2018-226926
Author(s):  
Karen Watura ◽  
Adrian Pollentine
Keyword(s):  
Coronary Artery ◽  
Right Ventricle ◽  
Left Main Coronary Artery ◽  
Coronary Artery Anomalies ◽  
Left Main ◽  
Congenital Atresia ◽  
Left Anterior Descending Artery ◽  
Coronary Ct ◽  
The Right

This case describes a 60-year-old man with congenital atresia of the left main coronary artery (LMCA), with fistulae between the left anterior descending artery (LAD) and the right ventricle (RV). This was detected at coronary CT. To our knowledge, this is the first reported case of congenital atresia of the LMCA in conjunction with fistulae between the LAD and RV. The patient remains asymptomatic at a 2-year follow-up. No treatment has been recommended. Coronary artery anomalies are rare. Although usually asymptomatic, they can present with symptoms varying from angina to sudden death. Identification and accurate description of coronary artery anomalies are vital in assessing the risk of associated adverse events.

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