scholarly journals EFFECTIVE CORRECTION OF THE COMMON ATRIOVENTRICULAR CANAL WITH TETRALOGY OF FALLOT AND HYPOPLASIA OF THE RIGHT VENTRICLE IN A CHILD

2021 ◽  
Vol 29 (5) ◽  
pp. 629-635
Author(s):  
D.K. Guschin ◽  
◽  
S.S. Volkov ◽  
A.V. Shcherbak ◽  
M.M. Zelenikin ◽  
...  
Keyword(s):  
Right Ventricle ◽  
Tetralogy Of Fallot ◽  
Left Ventricular ◽  
Moderate Degree ◽  
Atrioventricular Canal ◽  
Optimal Method ◽  
Congenital Cardiac Anomalies ◽  
Atrioventricular Canal Defect ◽  
The Common ◽  
The Right

The paper presents a description of a case of successful one and a half ventricular correction of a complex congenital cardiac anomalies, including the common atrioventricular canal, tetralogy of Fallot, and hypoplasia of the right ventricle in a child (2 year and 4 months). Ararecongenitalanomalycharacterized by acombinationof intracardiac defects, required an innovative surgical approach, the exclusivity of this clinical case has determined. The surgical strategy of complete atrioventricular canal defect is determined by a number of factors. One of the most important is balance between right and left ventricular outputs. The balanced type with adequate development of the ventricles involves the biventricular repair performance. Unbalancedatrioventricular canal defects includea hypoplastic ventricle. Reconstructive surgeryfor onehypoplasticventricle is oriented towards the degree of hypoplasia. In particular, a mild right ventricular hypoplasia allows perfoming biventricular radical operation while a severe degree suggests univentricular repair. In case of borderline, moderate degree of hypoplastic right ventricle the one and half ventricle repair can be carried out. Another important point is the presence of concomitant pulmonic stenosis required the choice of optimal method and material for reconstruction which is not always obvious and often it is the subject of debates. This report presents a description of the diagnostic stages with an emphasis on determining the type of balance of the common atrioventricular canal, the degree of hypoplasia of the right ventricle, the approach to choosing the optimal method for correcting the defect in general and the material for reconstructing the outflow pathway from the right ventricle in particular, as well as the subsequent successful correction of congenital multicomponent cardiac abnormalities in a young patient.

Delayed enhancement imaging in a contemporary patient cohort following correction of tetralogy of Fallot

2014 ◽  
Vol 25 (7) ◽  
pp. 1268-1275 ◽  
Author(s):  
Uta Preim ◽  
Philipp Sommer ◽  
Janine Hoffmann ◽  
Jana Kehrmann ◽  
Lukas Lehmkuhl ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Right Ventricle ◽  
Tetralogy Of Fallot ◽  
Nyha Class ◽  
Left Ventricular ◽  
Delayed Enhancement ◽  
Volume Index ◽  
Delayed Enhancement Imaging ◽  
The Right ◽  
Myocardial Scars

AbstractObjectiveTo test the hypothesis that myocardial scars after repair of tetralogy of Fallot are related to impaired cardiac function and adverse clinical outcome.MethodsA total of 53 patients were retrospectively analysed after repair of tetralogy of Fallot. The median patient age was 20 years (range 2–48).Cardiac MRI with a 1.5 T magnet included cine sequences to obtain volumes and function, phase-sensitive inversion recovery delayed enhancement imaging to detect myocardial scars, and flow measurements to determine pulmonary regurgitation fraction. In addition, clinical parameters were obtained.ResultsAn overall 83% of patients were in NYHA class I. All patients with the exception of 2 (96%) had pulmonary insufficiency. Mean ejection fraction and end-diastolic volume index were 46% and 128 ml/m2 for the right ventricle and 54% and 82 ml/m2 for the left ventricle, respectively. Excluding enhancement of the septal insertion and prosthetic patches, delayed enhancement was seen in 11/53 cases (21%). Delayed enhancement of the right ventricle was detected in 6/53 patients (11%) and of the left ventricle in 5/53 patients (9%). The patient group with delayed enhancement was significantly older (p=0.003), had later repair (p=0.007), and higher left ventricular myocardial mass index (p=0.009) compared with the group without delayed enhancement.ConclusionsThis study reveals that scarring is common in patients after surgical repair of tetralogy of Fallot and is associated with older age and late repair. However, there was no difference in right ventricular function, NYHA class, or occurrence of clinically relevant arrhythmias between patients with and those without myocardial scars.

scholarly journals Combination of Left Ventricular Noncompaction and Partial Atrioventricular Canal Defect in a 21-Year-Old Male: A Case Report

2013 ◽  
Vol 6 ◽  
pp. CCRep.S10466 ◽  
Author(s):  
Malick Bodian ◽  
Modou Jobe ◽  
Mohamed Lèye ◽  
Mouhamadou Bamba Ndiaye ◽  
Adama Kane ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Systolic Dysfunction ◽  
Left Ventricular ◽  
Left Ventricular Noncompaction ◽  
Atrioventricular Canal ◽  
Ventricular Noncompaction ◽  
Congenital Cardiac Anomalies ◽  
Atrioventricular Canal Defect ◽  
Short And Long Term ◽  
High Degree

Introduction Left ventricular noncompaction (LVNC) is classified as a genetic cardiomyopathy characterized by a progressive systolic dysfunction. It may occur alone or in association with congenital cardiac anomalies. The combination of left ventricular noncompaction with partial atrioventricular canal defect is rare and has not, to our knowledge, been described previously. Case presentation A 21-year-old male who traveled to our center from a neighboring country presented with signs of heart failure. Transthorarcic echocardiography showed prominent trabeculations in the left ventricle predominantly in the left ventricle involving the apical lateral and mid anterolateral segments associated with a partial atrioventricular canal defect. There was a biventricular systolic dysfunction. There was good response to medical treatment. Conclusion This case stresses the importance of maintaining a high degree of suspicion for this rare cardiomyopathy and the need to systematically look for other associated anomalies in order to institute proper short- and long-term managements.

Two-patch transannular repair of tetralogy of Fallot with complete atrioventricular canal defect

2021 ◽  
Keyword(s):  
Tetralogy Of Fallot ◽  
Pulmonary Valve ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Atrioventricular Canal ◽  
Atrioventricular Canal Defect ◽  
Valve Annulus ◽  
Patch Technique ◽  
The Right ◽  
Complete Atrioventricular

We demonstrate the repair in an infant of tetralogy of Fallot with complete atrioventricular canal defect using a 2-patch technique with transannular reconstruction of the right ventricular outflow tract due to a diminutive pulmonary valve annulus. This approach is reproducible and particularly valuable to surgeons who routinely use a 2-patch technique to repair an isolated complete atrioventricular canal defect.

Mechanical-electrical interaction of the right ventricle in patients with repaired tetralogy of fallot: the next step towards resynchronization in congenital heart disease

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
J Rodriguez Garcia ◽  
A Pijuan Domenech ◽  
J Perez Rodon ◽  
B Benito Villabriga ◽  
J Francisco Pascual ◽  
...  
Keyword(s):  
Heart Disease ◽  
Ejection Fraction ◽  
Right Ventricle ◽  
Tetralogy Of Fallot ◽  
Negative Correlation ◽  
Electrical Activation ◽  
Basal Region ◽  
Repaired Tetralogy Of Fallot ◽  
The Right ◽  
Activation Delay

Abstract Introduction Patients with repaired tetralogy of Fallot (rTF) and severe pulmonary regurgitation frequently progress to dilation and dysfunction of the right ventricle (RV). It has been documented in the literature that there is a correlation between the duration of the QRS in the surface electrocardiogram and the hemodynamic parameters of the RV of these patients, suggesting the presence of a mechanical-electrical interaction. Purpose To determine if there is an association between the contraction delay in certain areas of the RV measured in M-mode echocardiography and the delay in electrical activation measured in the electroanatomic map (EAM) of RV in patients with rTF. Methods Unicentric and observational study of all patients with rTF undergoing EAM, echocardiography with study of RV asynchrony and cardiac magnetic resonance imaging (MRI). Activation delay in the antero-basal area and in the RV outflow tract (RVOT) in the EAM were both analysed (Figure 1A). The shortening delay in the same areas in M-mode echocardiography was also evaluated (Figure 1B, C). MRI data regarding volume and ejection fraction was also collected. Results 64 patients were included (36.7±10.6 years, 65% men). The mean total activation time of the RV (RV-TAT) was 127.3±42.4 ms. Activation mapping showed a recurrent pattern with beginning in the interventricular septum and ending in RV antero-basal region and/or RVOT. A linear positive correlation was observed between RV-TAT and the activation delay in both regions analysed (ρ=0.60 and ρ=0.52, respectively; p<0.001) and also between the electrical and mechanical delay in the anterior wall (ρ=0.41; p=0.001). On the other hand, it was observed a negative correlation between RV ejection fraction (RVEF), measured on MRI, and the RV-TAT (ρ=−0.41, p=0.002) and also between RVEF and the activation delay in the RV antero-basal region and in the RVOT (ρ=−0.32, p=0.016 and ρ=−0.36, p=0.007, respectively). Conclusions There is a mechanical-electrical interaction in the RV of patients with rTF, with a negative correlation between the activation delay and RVEF and between mechanical and electrical activation delay in specific anatomical regions (regional mechanical-electrical interaction). These results may guide future studies on resynchronization in this heart disease. Figure 1. EAM and echocardiographic measures Funding Acknowledgement Type of funding source: None

Peritricuspid annular prostate pellet

2021 ◽  
Vol 14 (2) ◽  
pp. e238076
Author(s):  
Bryan O'Sullivan ◽  
Richard Tanner ◽  
Peter Kelly ◽  
Gerard Fahy
Keyword(s):  
Right Ventricle ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Prostate Adenocarcinoma ◽  
Left Ventricular ◽  
Premature Ventricular Contractions ◽  
Left Ventricular Outflow ◽  
Metallic Object ◽  
The Right

A 75-year-old was treated for prostate adenocarcinoma with brachytherapy in September 2018. A routine follow-up chest radiograph 3 months later revealed a metallic object of the same dimensions as a brachytherapy pellet located in the right ventricle. Further imaging showed the brachtherapy pellet was located in the anterobasal right ventricular endocardium close to the tricuspid valve. Frequent asymptomatic premature ventricular contractions were observed with likely origin from the left ventricular outflow tract, an area remote from the site of the pellet. The patient remains asymptomatic and subsequent imaging shows that the position of the pellet has not changed.

Regulation of K+ and Ca2+ channels in experimental cardiac failure

1991 ◽  
Vol 261 (6) ◽  
pp. H1979-H1987 ◽  
Author(s):  
M. Gopalakrishnan ◽  
D. J. Triggle ◽  
A. Rutledge ◽  
Y. W. Kwon ◽  
J. A. Bauer ◽  
...  
Keyword(s):  
Heart Failure ◽  
Left Ventricle ◽  
Right Ventricle ◽  
Cardiac Failure ◽  
Radioligand Binding ◽  
Weight Ratio ◽  
Left Ventricular ◽  
Coronary Artery Ligation ◽  
Artery Ligation ◽  
The Right

To examine the status of ATP-sensitive K+ (K+ATP) channels and 1,4-dihydropyridine-sensitive Ca2+ (Ca2+DHP) channels during experimental cardiac failure, we have measured the radioligand binding properties of [3H]glyburide and [3H]PN 200 110, respectively, in tissue homogenates from the rat cardiac left ventricle, right ventricle, and brain 4 wk after myocardial infarction induced by left coronary artery ligation. The maximal values (Bmax) for [3H]glyburide and [3H]PN 200 110 binding were reduced by 39 and 40%, respectively, in the left ventricle, and these reductions showed a good correlation with the right ventricle-to-body weight ratio in heart-failure rats. The ligand binding affinities were not altered. In the hypertrophied right ventricle, Bmax values for both the ligands were not significantly different when data were normalized to DNA content or right ventricle weights but showed an apparent reduction when normalized to unit protein or tissue weight. Moderate reductions in channel densities were observed also in whole brain homogenates from heart failure rats. Assessment of muscarinic receptors, beta-adrenoceptors and alpha 1-adrenoceptors by [3H]quinuclidinyl benzilate, [3H]dihydroalprenolol, and [3H]prazosin showed reductions in left ventricular muscarinic and beta-adrenoceptor densities but not in alpha 1-adrenoceptor densities, consistent with earlier observations. It is suggested that these changes may in part contribute to the pathology of cardiac failure.

Ventricular systolic interdependence: volume elastance model in isolated canine hearts

1987 ◽  
Vol 253 (6) ◽  
pp. H1381-H1390 ◽  
Author(s):  
W. L. Maughan ◽  
K. Sunagawa ◽  
K. Sagawa
Keyword(s):  
Left Ventricle ◽  
Right Ventricle ◽  
Cross Talk ◽  
Systolic Pressure ◽  
Left Ventricular ◽  
Ventricular Free Wall ◽  
Free Wall ◽  
Right Ventricular Free Wall ◽  
Systolic Volume ◽  
The Right

To analyze the interaction between the right and left ventricle, we developed a model that consists of three functional elastic compartments (left ventricular free wall, septal, and right ventricular free wall compartments). Using 10 isolated blood-perfused canine hearts, we determined the end-systolic volume elastance of each of these three compartments. The functional septum was by far stiffer for either direction [47.2 +/- 7.2 (SE) mmHg/ml when pushed from left ventricle and 44.6 +/- 6.8 when pushed from right ventricle] than ventricular free walls [6.8 +/- 0.9 mmHg/ml for left ventricle and 2.9 +/- 0.2 for right ventricle]. The model prediction that right-to-left ventricular interaction (GRL) would be about twice as large as left-to-right interaction (GLR) was tested by direct measurement of changes in isovolumic peak pressure in one ventricle while the systolic pressure of the contralateral ventricle was varied. GRL thus measured was about twice GLR (0.146 +/- 0.003 vs. 0.08 +/- 0.001). In a separate protocol the end-systolic pressure-volume relationship (ESPVR) of each ventricle was measured while the contralateral ventricle was alternatively empty and while systolic pressure was maintained at a fixed value. The cross-talk gain was derived by dividing the amount of upward shift of the ESPVR by the systolic pressure difference in the other ventricle. Again GRL measured about twice GLR (0.126 +/- 0.002 vs. 0.065 +/- 0.008). There was no statistical difference between the gains determined by each of the three methods (predicted from the compartment elastances, measured directly, or calculated from shifts in the ESPVR). We conclude that systolic cross-talk gain was twice as large from right to left as from left to right and that the three-compartment volume elastance model is a powerful concept in interpreting ventricular cross talk.

scholarly journals TETRALOGI FALLOT DAN ATRESIA PULMONAL

2013 ◽  
Vol 4 (3) ◽  
Author(s):  
Alice I. Supit ◽  
Erling D. Kaunang
Keyword(s):  
Patent Ductus Arteriosus ◽  
Right Ventricle ◽  
Tetralogy Of Fallot ◽  
Congenital Heart ◽  
Heart Diseases ◽  
Ductus Arteriosus ◽  
Ventricle Hypertrophy ◽  
The Right ◽  
Right Ventricle Hypertrophy ◽  
Patent Ductus

Abstract: Congenital heart disease is a structural defect due to the malformation of the heart, aorta, and or great blood vessels. It is the most frequent congenital malformation in newborn babies. Tetralogy of Fallot is one of the congenital heart diseases (CHD) with central cyanosis, and covers 5-10% of all CHD. We reported a boy of one year old with Tetralogy of Fallot and pulmonal atresia (ToF-PA), associated with bronchopneumonia. The diagnosis was based on anamnesis, physical examination, and other supporting examinations. The chest X-ray showed a normal sized heart (CTR 57%) with coer-en-sabot shape, and right and left parahilar infiltration, which resulted in bronchopneumonia and ToF. The electrocardiography showed a right deviation of axis and a hypertrophy of the right ventricle; the echocardiography showed a right ventricle hypertrophy, an over-riding aorta, a large malalignment of the ventricular septal defect, no visualization of pulmonar artery, and no visualization of patent ductus arteriosus (PDA). Conclusion: Based on all the tests performed, the diagnosis of this patient was Tetralogy of Fallot and pulmonal atresia (ToF-PA), associated with bronchopneumonia. The prognosis related to bronchopneumonia in this case was good due to the use of antibiotics. Keywords: tetralogy of Fallot, pulmona atresia, bronchopneumonia.  Abstrak: Penyakit jantung bawaan (PJB) ialah kelainan struktural akibat malformasi jantung, aorta dan atau pembuluh darah besar, dan merupakan kelainan kongenital tersering pada bayi baru lahir. Tetralogi Fallot merupakan salah satu PJB dengan sianosis sentral, dan mencakup 5-10% dari seluruh PJB. Kami melaporkan kasus seorang anak laki-laki berusia satu tahun dengan Tetralogi Fallot dan atresia pulmonal (ToF-PA) disertai bronkopneumonia. Diagnosis ditegakkan melalui anamnesis, pemeriksaan fisik, dan pemeriksaan penunjang. Hasil ekspertisi foto toraks AP memperlihatkan ukuran jantung normal (CTR 57%) berbentuk coer-en-sabot, dan pada paru-paru terlihat infiltrat parahilar kanan dan kiri serta corakan vaskular paru berkurang yang menunjukkan suspek bronkopneumonia dan ToF. Elektrokardiografi memperlihatkan deviasi aksis ke kanan dan hipertrofi ventrikel kanan, dan pada ekokardiografi tampak right ventricle hypertrophy, overriding aorta, VSD malalignment besar, tidak tampak visualisasi arteri pulmonal, dan tidak tampak patent ductus arteriosus (PDA) dengan hasil Tetralogi Fallot dan atresia pulmonal. Simpulan: Berdasarkan hasil pemeriksaan yang dilakukan, diagnosis pasien ini ialah Tetralogi Fallot dan atresia pulmonal (ToF-PA) disertai bronkopneumonia. Prognosis bronkopenumonia pada kasus ini baik yang dapat diatasi dengan antibiotika.Kata kunci: tetralogi Fallot, atresia pulmonal, bronkopneumonia.  

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