Aortic Ring Rupture in Stallions

1967 ◽  
Vol 4 (3) ◽  
pp. 268-274 ◽  
Author(s):  
J. R. Rooney ◽  
M. E. Prickett ◽  
M. W. Crowe
Keyword(s):  
Blood Pressure ◽  
Right Ventricle ◽  
Coronary Sinus ◽  
Interventricular Septum ◽  
Aortic Ring ◽  
The Right

Eight cases of acquired rupture of the aortic ring in the right coronary sinus with dissection (cardioaortic fistula) into the interventricular septum and into the right ventricle have been described in stallions. It is postulated that the ruptures are due to increased blood pressure during breeding and the direction of a recoiling column of blood against an area of anatomic weakness.

scholarly journals INFLUENCE OF NOCTURNAL INCREASE OF BLOOD PRESSURE ON CARDIAC REMODELING IN PATIENTS WITH ARTERIAL HYPERTENSION

2019 ◽  
Vol 19 (1-2) ◽  
pp. 65-69
Author(s):  
A. I Miroshnichenko ◽  
K. M Ivanov
Keyword(s):  
Blood Pressure ◽  
Left Ventricle ◽  
Right Ventricle ◽  
Arterial Hypertension ◽  
Antihypertensive Therapy ◽  
Cardiac Remodeling ◽  
Interventricular Septum ◽  
Posterior Wall ◽  
The Right ◽  
Group 1

Actuality. Arterial hypertension (AH) is the main risk factor for the development of cardiovascular diseases, disability and cardiovascular mortality. Episodes of blood pressure (BP) increase during the day in patients receiving antihypertensive therapy are an unfavourable factor contributing to the development and progression of cardiac remodeling. Aim. The purpose of the research is to study the features of changes in the structural and functional state of the heart under the influence of high blood pressure at night in patients with arterial hypertension with the dynamic three-year observation. Material and methods. 47 patients with the diagnosis of AH were examined. Patients were divided into two groups, randomized by age, duration and severity of AH. Group 1 included 24 patients who as a result of ambulatory blood pressure monitoring (ABPM) on the background of combined antihypertensive therapy suffered from constantly increased BP at night. The second group combined 23 patients without the increase in BP during the night according to the ABPM with antihypertensive therapy. The examination included measurement of the office BP, ABPM, two-fold echocardiography with a three-year interval. Results. When assessing the indices of office BP in the groups, there were no significant differences, all patients achieved the target values of BP. In patients in Group 1, higher values of BP were observed during the day, according to ABPM. Echocardiography over a three year period of observation revealed a more pronounced increase in diastolic interventricular septum thickness, the thickness of the left ventricle posterior wall during diastole, sizes of left atrium in the patients of the first group, patients of the second group had a more pronounced thickness of the left ventricle posterior wall during systole. The increase in the size of the right ventricle was revealed in both groups. Conclusions. 1) In patients with the increase in blood pressure at night, the values of BP variability were higher during the day. 2) Three-year dynamic observation revealed that the increase in BP at night in patients with hypertension facilitated acceleration of cardiac remodelling and was associated with an increase in the left ventricular posterior wall, interventricular septum thickness, the size of the left atrium, and the size of the right ventricle.

scholarly journals HYDATID CYST OF THE INTERVENTRICULAR SEPTUM OF THE HEART WITH RUPTURE INTO THE RIGHT VENTRICLE

1962 ◽  
Vol 44 (1) ◽  
pp. 110-114 ◽  
Author(s):  
Hernán Artucio ◽  
José L. Roglia ◽  
Raúl Di Bello ◽  
Jorge Dubra ◽  
Agustín Gorlero ◽  
...  
Keyword(s):  
Right Ventricle ◽  
Hydatid Cyst ◽  
Interventricular Septum ◽  
The Right

Cat heart acetylcholine: structural proof and distribution

1976 ◽  
Vol 231 (3) ◽  
pp. 781-785 ◽  
Author(s):  
OM Brown
Keyword(s):  
Left Ventricle ◽  
Right Ventricle ◽  
Left Atrium ◽  
Right Atrium ◽  
Interventricular Septum ◽  
Pyrolysis Product ◽  
Heart Tissue ◽  
Choline Esters ◽  
The Right ◽  
Cat Heart

The distribution of acetylcholine (ACh) in the cat heart was investigated by a pyrolysis-gas chromatography (PGC) method. The hearts were dissected into various regions and homogenized in acetonitrile in the presence of propionylcholine, internal standard. Following extraction with toluene and hexane, the choline esters were precipitated as the enneaiodide complex. The isolated choline esters were analyzed by PGC, and the peak corresponding to ACh was quantified. The compound extracted from heart tissue that eluted with the retention time of authentic ACh was identified by mass spectrometry as dimethylaminoethylacetate, the pyrolysis product of ACh. ACh concentrations were found to be higher in the atria than the ventricles. In both the atria and the ventricles, a higher content of ACh was found in the right than the left portions: right ventricle, 5.0 compared to left ventricle, 2.0 nmol/g; and right atrium, 16.8 compared to left atrium, 11.3 nmol/g. Some cats were subjected to a bilateral cervical vagotomy 3 wk before removal and analysis of heart tissue. Hearts from vagotomized cats contained less ACh than controls in the right ventricle (-31%), right atrium (-54%), SA node (-42%), and papillary muscle (-53%), but no decreases were found in the left ventricle, left atrium, or interventricular septum.

Defective regional myocardial development and vascularization in one variant of tricuspid atresia—clinical and necropsy findings in three cases

1992 ◽  
Vol 2 (1) ◽  
pp. 42-52 ◽  
Author(s):  
William N. O'Connor ◽  
Carol M. Cottrill ◽  
Michael T. Marion ◽  
Jacqueline A. Noonan
Keyword(s):  
Coronary Artery ◽  
Right Ventricle ◽  
Tricuspid Valve ◽  
Right Coronary Artery ◽  
Interventricular Septum ◽  
Ventricular Myocardium ◽  
Tricuspid Atresia ◽  
Subaortic Stenosis ◽  
Myocardial Development ◽  
The Right

SummaryFive previously reported cases have established the combination of a small right ventricle (sometimes with Uhl's anomaly), imperforate tricuspid valve with fibrotic tensor apparatus, congenital absence of the pulmonary valve, and an intact interventricular septum with muscular subaortic stenosis as a rare variant of tricuspid atresia. In this study of three new autopsy cases, we additionally identified Ebstein's malformation of the imperforate tricuspid valve, partial Uhl's anomaly, regional dysplasia of right ventricular myocardium and thinning of the interventricular septum by intramyocardial sinusoids from the right ventricle. All three new cases had epicardial anomalies of the right coronary artery—a fistula to right ventricle, ostial stenosis and proximal arterial hypoplasia. Sinusoidal connections from the right ventricle to the right coronary artery and to the sclerotic left anterior descending artery were identified in serial sections of the right ventricle and septum. Myofiber disarray, with thick walled intramyocardial arteries and sinusoids from left ventricle, involved the bulging subaortic interventricular septum. These studies are consistent with the hypothesis that defective development of the the right ventricle, along with its blood supply and associated atrioventricular and arterial valves, may underlie this unusual form of congenital heart disease.

Spontaneous regression of a large rhabdomyoma of the interventricular septum

2013 ◽  
Vol 24 (2) ◽  
pp. 379-381 ◽  
Author(s):  
Elena G. Milano ◽  
Maria A. Prioli ◽  
Corrado Vassanelli
Keyword(s):  
Right Ventricle ◽  
Spontaneous Regression ◽  
Interventricular Septum ◽  
In Utero ◽  
Gestation Period ◽  
The Right

AbstractWe report the case of a large congenital rhabdomyoma of the interventricular septum diagnosed prenatally. The foetus was strictly monitored with ultrasound throughout the gestation period showing that the mass had increased in size until delivery. Despite the size of the mass, which appeared to occupy the right ventricle, the baby presented no symptoms both in utero and after birth. Serial echocardiography was used to document the regression of the mass in childhood.

Absence of the coronary sinus with coronary venous drainage into the main pulmonary artery

2012 ◽  
Vol 23 (5) ◽  
pp. 759-762
Author(s):  
Kiyoshi Ogawa ◽  
Takashi Hishitani ◽  
Kenji Hoshino
Keyword(s):  
Coronary Angiography ◽  
Pulmonary Artery ◽  
Right Ventricle ◽  
Contrast Medium ◽  
Coronary Arteries ◽  
Coronary Sinus ◽  
Main Pulmonary Artery ◽  
Venous Drainage ◽  
Anterior Wall ◽  
The Right

AbstractWe describe the case of a 9-year-old girl demonstrating isolated absence of the coronary sinus with abnormal coronary venous drainage into the main pulmonary artery. Coronary angiography showed normal coronary arterial trees and contrast medium from both coronary arteries drained into the main pulmonary artery via an abnormal cardiac vein on the anterior wall of the right ventricle.

scholarly journals Echocardiographic and Doppler Aspects of Chronic Pulmonary Heart. About 11 cases

2021 ◽  
Vol 04 (16) ◽  
pp. 01-07
Author(s):  
Bani Am
Keyword(s):  
Right Ventricle ◽  
Inferior Vena ◽  
Interventricular Septum ◽  
Vena Cava ◽  
Maximum Velocity ◽  
Heart Patients ◽  
Specificity And Sensitivity ◽  
Chest X Ray ◽  
The Mean ◽  
The Right

Pulmonary chronic heart (CPC) is an enlargement associated or not with dilation of the right ventricle. Objective: To recall the echocardiographic-Doppler aspects essential for the screening of pulmonary chronic heart. Patients and method: Retrospective study carried out between January 2009 and April 2019 interesting the cases of pulmonary chronic heart. Results: out of 124 cases of pulmonary chronic heart, 11 cases were included. These were four men and 7 women with a mean age of 63 ± 19 years (range: 20-84 years). The radiological and electrical semiology of pulmonary chronic heart was found, lacking specificity and sensitivity. Dilation of the right heart chambers, dyskinesia of the interventricular septum and hypertrophy of the free wall of the right ventricle ˃ 5 mm were observed. The mean maximum velocity of tricuspid insufficiency on continuous Doppler was 4.6 ± 1.32 ms / s (Extremes: 3.59-7.58 m / s) and the mean dilation of the inferior vena cava was 23.2 ± 3.9mm (Extreme: 21.2-27mm). Conclusion: CPC is uncommon and predominant in women. The EKG and chest X-ray are first-line exams without sensitivity or specificity. Screening for CPC is based on echocardiographic-Doppler criteria. The right cardiac catheterization remains the key examination.

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