scholarly journals Mutual Arrangements of Coronary Blood Vessels within the Right Atrial Appendage Vestibule

2021 ◽  
Vol 10 (16) ◽  
pp. 3588
Author(s):  
Jakub Hołda ◽  
Katarzyna Słodowska ◽  
Marcin Strona ◽  
Karolina Malinowska ◽  
Filip Bolechała ◽  
...  
Keyword(s):  
Blood Vessels ◽  
Complex Analysis ◽  
Coronary Vessels ◽  
Atrial Appendage ◽  
Right Atrial ◽  
Epicardial Surface ◽  
Endocardial Surface ◽  
Coronary Blood Vessels ◽  
Right Atrial Appendage ◽  
The Right

Background: The aim of our study was to investigate the presence and mutual relationships of coronary vessels within the right atrial appendage (RAA) vestibule. Methods: We examined 200 autopsied hearts. The RAA vestibule was cross-sectioned along its isthmuses (superior, middle, and inferior). Results: The right coronary artery (RCA) was present in 100% of the superior RAA isthmuses but absent in 2.0% of hearts within the middle isthmus and in 6.5% of hearts within the inferior RAA isthmus. Its diameter was quite uniform along the superior (2.6 ± 0.8 mm), middle (2.9 ± 1.1 mm), and inferior (2.7 ± 0.9 mm) isthmuses (p = 0.12). The location of the RCA varied significantly, and it was sometimes accompanied by other accessory coronary vessels. In all the isthmuses, the RCA ran significantly closer to the endocardial surface than to the epicardial surface (p < 0.001). At the superior RAA isthmus, the artery was furthest from the right atrial endocardial surface and this distance gradually decreased between the middle RAA isthmus and the inferior RAA. Conclusions: This study was the most complex analysis of the mutual arrangements and morphometric characteristics of coronary blood vessels within the RAA vestibule. Awareness of additional blood vessels within the vestibule can help clinicians plan and perform safe and efficacious procedures in this region.

scholarly journals Mutual arrangements of coronary blood vessels within the right atrial appendage vestibule.

2021 ◽  
Author(s):  
Jakub Holda ◽  
Katarzyna Słodowska ◽  
Marcin Strona ◽  
Filip Bolechała ◽  
Katarzyna Jasińska ◽  
...  
Keyword(s):  
Blood Vessels ◽  
Complex Analysis ◽  
Coronary Vessels ◽  
Atrial Appendage ◽  
Right Atrial ◽  
Epicardial Surface ◽  
Endocardial Surface ◽  
Coronary Blood Vessels ◽  
Right Atrial Appendage ◽  
The Right

Introduction: The aim of our study was to investigate the presence and mutual relationships of coronary vessels within the right atrial appendage RAA vestibule. Methods and Results: We examined 200 autopsied hearts. The RAA vestibule was cross sectioned along its isthmuses (superior, middle, and inferior). We assessed the presence and mutual relationships between coronary blood vessels. The right coronary artery (RCA) was present in 100% of the superior RAA isthmuses but absent in 2.0% of hearts within the middle isthmus and in 6.5% of hearts within the inferior RAA isthmus. Its diameter was quite uniform along the superior (2.6±0.8mm), middle (2.9±1.1mm) and inferior (2.7±0.9mm) isthmuses (p=0.12). The location of the RCA varied significantly, and it was sometimes accompanied by other accessory coronary vessels. In all the isthmuses, the RCA ran significantly closer to the endocardial surface than to the epicardial surface (p<0.001). At the superior RAA isthmus, the artery was furthest from the right atrial endocardial surface and this distance gradually decreased between the middle RAA isthmus and the inferior RAA isthmus (9.0±4.0 vs. 6.2±3.0 vs. 4.8±2.3mm, respectively; p<0.001). The interposed RCA was found in 7.0% of cases within the superior isthmus, in 2.5% within the middle isthmus and in 1.5% within the inferior isthmus. Conclusions: This study was the most complex analysis of the mutual arrangements and morphometric characteristics of coronary blood vessels within the RAA vestibule. Awareness of additional blood vessels within the vestibule can help clinicians plan and perform safe and efficacious procedures in this region.

scholarly journals Expression Profile of Genes Encoding Proteins Involved in Regulation of Vasculature Development and Heart Muscle Morphogenesis—A Transcriptomic Approach Based on a Porcine Model

2021 ◽  
Vol 22 (16) ◽  
pp. 8794
Author(s):  
Mariusz J. Nawrocki ◽  
Karol Jopek ◽  
Maciej Zdun ◽  
Paul Mozdziak ◽  
Marek Jemielity ◽  
...  
Keyword(s):  
Heart Muscle ◽  
Cultured Cells ◽  
Expression Profiles ◽  
Treatment Strategies ◽  
Coronary Vessels ◽  
Atrial Appendage ◽  
Right Atrial ◽  
Reduced Ejection Fraction ◽  
Right Atrial Appendage ◽  
The Right

Despite significant advances in treatment of acute coronary syndromes (ACS) many subjects still develop heart failure due to significantly reduced ejection fraction. Currently, there are no commonly available treatment strategies that replace the infarcted/dysfunctional myocardium. Therefore, understanding the mechanisms that control the regeneration of the heart muscle is important. The development of new coronary vessels plays a pivotal role in cardiac regeneration. Employing microarray expression assays and RT-qPCR validation expression pattern of genes in long-term primary cultured cells isolated form the right atrial appendage (RAA) and right atrium (RA) was evaluated. After using DAVID software, it indicated the analysis expression profiles of genes involved in ontological groups such as: “angiogenesis”, “blood vessel morphogenesis”, “circulatory system development”, “regulation of vasculature development”, and “vasculature development” associated with the process of creation new blood vessels. The performed transcriptomic comparative analysis between two different compartments of the heart muscle allowed us to indicate the presence of differences in the expression of key transcripts depending on the cell source. Increases in culture intervals significantly increased expression of SFRP2, PRRX1 genes and some other genes involved in inflammatory process, such as: CCL2, IL6, and ROBO1. Moreover, the right atrial appendage gene encoding lysyl oxidase (LOX) showed much higher expression compared to the pre-cultivation state.

scholarly journals A case of restrictive cardiomyopathy complicated by recurrent pulmonary thromboembolism originating at the right atrial appendage

2020 ◽  
Vol 21 (6) ◽  
pp. 220-223
Author(s):  
Hiroaki Yamamoto ◽  
Chieko Itamoto ◽  
Minato Hayashi ◽  
Tsunesuke Kohno ◽  
Yu Matsumura ◽  
...  
Keyword(s):  
Pulmonary Thromboembolism ◽  
Restrictive Cardiomyopathy ◽  
Atrial Appendage ◽  
Right Atrial ◽  
Right Atrial Appendage ◽  
The Right

Expression of Follistatin-Like 3 is not Altered in the Right Atrial Appendage in Patients with Myocardial Infarction

2018 ◽  
Vol 27 ◽  
pp. S317
Author(s):  
M. Morten ◽  
T. Senanayake ◽  
L. Butel-Simões ◽  
N. Mabotuwana ◽  
A. Boyle ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Atrial Appendage ◽  
Right Atrial ◽  
Right Atrial Appendage ◽  
The Right

Right atrial appendectomy reduces the renal response to acute hypervolemia in the rat

1984 ◽  
Vol 247 (3) ◽  
pp. R610-R613 ◽  
Author(s):  
A. T. Veress ◽  
H. Sonnenberg
Keyword(s):  
Atrial Natriuretic Factor ◽  
Control Period ◽  
Atrial Appendage ◽  
Right Atrial ◽  
Blood Flows ◽  
Natriuretic Factor ◽  
Right Atrial Appendage ◽  
The Right ◽  
Experimental Group ◽  
Atrial Natriuretic

We have shown previously that an extract of atrial tissue from rat heart contains a potent natriuretic factor. In this study anesthetized rats were connected to a respirator and the right atrial appendage was either excised, using a loop ligature (experimental group), or the loop was placed around the appendage and then removed (sham-operated group). After equilibration and control urine collection periods an isooncotic Ringers-albumin solution was infused intravenously (25% of estimated blood volume), and renal function was monitored over the next hour. There were no differences between groups in control period arterial or central venous pressures, heart rates, cardiac outputs, renal blood flows, or filtration rates. However, the diuretic and natriuretic responses to infusion in the experimental group were only one half of those in the sham-operated series (vol = 23.4 +/- 6.2 vs. 68.2 +/- 11.0 microliter X min-1 X g kidney wt-1, UNa V = 2,731 +/- 856 vs. 6,504 +/- 962 nmol X min-1 X g kidney wt-1). These differences were not affected by prior bilateral vagotomy. Administration of homologous atrial natriuretic factor or furosemide resulted in identical renal responses in both groups. We conclude therefore that acute hypervolemia is associated with release of atrial natriuretic factor into the bloodstream and that removal of the atrial appendage reduces the amount available for such release.

Congenital Levojuxtaposition of the Right Atrial Appendage

CHEST Journal ◽  
1976 ◽  
Vol 69 (4) ◽  
pp. 550-552 ◽  
Author(s):  
Myung K. Park ◽  
C.H. Joseph Chang ◽  
Thamnium Vaseenon
Keyword(s):  
Atrial Appendage ◽  
Right Atrial ◽  
Right Atrial Appendage ◽  
The Right

Hemangioendothelioma of the right atrial appendage associated with pericardial effusion in an infant

2012 ◽  
Vol 8 (1) ◽  
pp. 83-85
Author(s):  
Yu-Jia Wang ◽  
Ze-Wei Zhang ◽  
Jin Yu ◽  
Hong-Feng Tang ◽  
Zhan Gao ◽  
...  
Keyword(s):  
Pericardial Effusion ◽  
Atrial Appendage ◽  
Right Atrial ◽  
Right Atrial Appendage ◽  
The Right
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