scholarly journals Gross Anatomy of the Heart of Mature Philippine Water Buffalo (Bubalus bubalis L.)

2021 ◽  
Vol 5 (1) ◽  
pp. 11-26
Author(s):  
Marjorie Maguigad ◽  
◽  
Errol Jay Balagan ◽  
Keyword(s):  
Water Buffalo ◽  
Pulmonary Veins ◽  
Vena Cava ◽  
Gross Anatomy ◽  
Bubalus Bubalis ◽  
Papillary Muscles ◽  
Aortic Valves ◽  
Ligamentum Arteriosum ◽  
Left And Right ◽  
The Mean

The gross morphology of the heart of mature Philippine water buffalo was described by determining the weight, length, width and circumference; measured the average external circumference of the pulmonary veins and artery, cranial and caudal vena cava and the aorta; determined the presence and location of ligamentum arteriosum; measured the thickness of the atrial and ventricular wall; described the components of the left and right atrioventricular valves, pulmonary valves and the aortic valves; determined the location and measured the length of trabeculae septomarginalis and determined the location of the os cordis. Hearts of ten mature Philippine water buffalo of both sexes were collected from abattoirs of Cabanatuan City. The absolute and relative weights of the heart were measured using digital weighing scale. Different dimensions like circumferences, length, and width of the heart; the external circumferences of major blood vessels; and the thickness of the wall of heart were determined using measuring tape and Vernier caliper. The number of cusps present in the left and right atrioventricular, pulmonary, and aortic valves was counted and the presence of ligamentum arteriosum was documented. Radiograph was used to determine the presence and location of os cordis. All of the hearts studied were pointed and bilaterally flattened. The base of the heart is markedly surrounded with fatty tissues. The mean absolute weight is 2.42 kg. The heart has a mean dimension of 21.71 cm x 17.49 cm. The mean circumference at the level of the coronary groove, middle and apex were 48.41 cm, 44.10 cm and 20.57 cm, respectively. An average of four pulmonary veins was documented to be present. The right ventricle has a constant three papillary muscles and three cusps while the left ventricle has a constant two papillary muscles and two cusps. The number of cusps of both pulmonary valve and aortic valve was three. Ligamentum arteriosum was present in all samples and it is located between the pulmonary trunk and aorta. The os cordis which is located at the aortic fibrous ring is present in all heart of Philippine water buffalo examined.

scholarly journals Reversal of epidural xylazine in Egyptian water buffalo (Bubalus bubalis) with atipamezole

2021 ◽  
Vol 24 (3) ◽  
pp. 376-382
Author(s):  
M. M Shokry ◽  
A. H. Elkasapy
Keyword(s):  
Side Effects ◽  
Dose Rate ◽  
Water Buffalo ◽  
Bubalus Bubalis ◽  
Total Recovery ◽  
Dose Rates ◽  
Recovery Times ◽  
The Mean

The reversal of epidural xylazine, induced with IV atipamezole was evaluated in 15 buffaloes. Atipamezole at different dose rates (5, 10 and 15 µg/kg) injected 30 minutes after epidural xylazine provoked visible signs of arousal shortly after inection in all buffaloes without any side effects. The mean arousal times were 4.8±0.84 min, 2.4±0.24 min and 2.0±0.00 min while the mean total recovery times were 61.0±2.6 min, 33.0±3.7 min and 32.0±4.3 min following doses of 5, 10 and 15 µg/kg atipamezole respectively. The heart, respiratory and ruminal rates were mildly influenced. Overall, the IV atipamezole at a dose rate of 10 µg/kg was found effective and satisfactory for reversing the analgesic, sedative and cardiopulmonary depression effects induced by epidural xylazine administration in buffaloes.

scholarly journals Variability of Aldosterone Measurements During Adrenal Venous Sampling for Primary Aldosteronism

2020 ◽  
Author(s):  
Nicholas Yozamp ◽  
Gregory L Hundemer ◽  
Marwan Moussa ◽  
Johnathan Underhill ◽  
Tali Fudim ◽  
...  
Keyword(s):  
Primary Aldosteronism ◽  
Vena Cava ◽  
Adrenal Venous Sampling ◽  
Venous Sampling ◽  
Tertiary Referral Center ◽  
Percentage Difference ◽  
Left And Right ◽  
The Mean ◽  
Lateralization Index ◽  
Cortisol Ratio

Abstract BACKGROUND Variability of aldosterone concentrations has been described in patients with primary aldosteronism. METHODS We performed a retrospective cohort study of 340 patients with primary aldosteronism who underwent adrenal venous sampling (AVS) at a tertiary referral center, 116 of whom also had a peripheral venous aldosterone measured hours before the procedure. AVS was performed by the same interventional radiologist using bilateral, simultaneous sampling, under unstimulated and then stimulated conditions, and each sample was obtained in triplicate. Main outcome measures were: (i) change in day of AVS venous aldosterone from pre-AVS to intra-AVS and (ii) variability of triplicate adrenal venous aldosterone concentrations during AVS. RESULTS Within an average duration of 131 minutes, 81% of patients had a decline in circulating aldosterone concentrations (relative decrease of 51% and median decrease of 7.0 ng/dl). More than a quarter (26%) of all patients had an inferior vena cava aldosterone of ≤5 ng/dl at AVS initiation. The mean coefficient of variation of triplicate adrenal aldosterone concentrations was 30% and 39%, in the left and right veins, respectively (corresponding to a percentage difference of 57% and 73%), resulting in lateralization discordance in up to 17% of patients if the lateralization index were calculated using only one unstimulated aldosterone-to-cortisol ratio rather than the average of triplicate measures. CONCLUSIONS Circulating aldosterone levels can reach nadirs conventionally considered incompatible with the primary aldosteronism diagnosis, and adrenal venous aldosterone concentrations exhibit acute variability that can confound AVS interpretation. A single venous aldosterone measurement lacks precision and reproducibility in primary aldosteronism.

scholarly journals Gross Anatomy of Cerebral Ventricles and Septum Pellucidum of Brain of Surti Buffalo (Bubalus bubalis)

2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Alka Suman ◽  
Sweta Pandya
Keyword(s):  
Third Ventricle ◽  
Gross Anatomy ◽  
Bubalus Bubalis ◽  
Septum Pellucidum ◽  
Cerebral Ventricles ◽  
Cavum Septum Pellucidum ◽  
Mean Values ◽  
Lateral Ventricles ◽  
The Mean ◽  
Surti Buffalo

The objective of the present work was to study the cerebral ventricles and its associated parts of brain of Surti buffalo (n=12), The cerebral ventricles included two lateral ventricles and third ventricle. The lateral ventricles were curved cavities presented large central part and three horns within the cerebral hemispheres. The third ventricle was an annular space on the periphery of inter-thalamic adhesion between two thalami. The mean length and width of central part of lateral ventricle were 4.78±0.07 and 1.49±0.07 cm, respectively. The septum pellucidum was thin translucent membrane of two laminae which separates two lateral ventricles. The mean values of length and height of septum pellucidum were 3.6±0.12 and 0.52±0.04 cm, respectively. The cavum septum pellucidum was a small space found between two laminae of septum pellucidum.

Localization of vagal preganglionic somata controlling sinoatrial and atrioventricular nodes

1988 ◽  
Vol 255 (5) ◽  
pp. R703-R708 ◽  
Author(s):  
D. M. Plecha ◽  
W. C. Randall ◽  
G. S. Geis ◽  
R. D. Wurster
Keyword(s):  
Heart Rate ◽  
Left Atrium ◽  
Pulmonary Veins ◽  
Vena Cava ◽  
Retrograde Transport ◽  
Distribution Patterns ◽  
Atrioventricular Conduction ◽  
Longitudinal Distribution ◽  
Left And Right ◽  
The Right

Canine cardiac vagal ganglia in the region of the inferior vena cava and inferior left atrium (IVC-ILA) and at the junction of the right pulmonary veins and left atrium (PVFP) control atrioventricular conduction and heart rate, respectively. After retrograde transport of horseradish peroxidase (HRP) injected separately into these ganglia in different dogs, the left and right and longitudinal distributions of brain stem somata terminating in these ganglia were compared with functional dominance of left and right vagal control of heart rate and atrioventricular conduction. Labeled somata innervating these ganglia had quite similar longitudinal distribution patterns. Although functional dominance of heart rate was found to be in either the right vagus or bilaterally in both vagi, a corresponding difference in somata innervating the PVFP ganglia was not found. Functional vagal dominance of atrioventricular conduction was found to be either right, bilateral, or left with correspondence between left-right distributions of somata after HRP injection into the IVC-ILA region. However, these results should be cautiously interpreted because these ganglia mediate other cardiac functions.

Paracardioscopy Provides Endoscopic Visualization of the Heart

2009 ◽  
Vol 4 (4) ◽  
pp. 233-235 ◽  
Author(s):  
Andy C. Kiser
Keyword(s):  
Atrial Fibrillation ◽  
Inferior Vena Cava ◽  
Left Atrium ◽  
Inferior Vena ◽  
Pulmonary Veins ◽  
Vena Cava ◽  
Right Atrial ◽  
Cardiac Procedures ◽  
Left And Right ◽  
Right Atrial Appendage

Paracardioscopy provides totally endoscopic access to the heart via a transabdominal, transdiaphragmatic approach. Structures such as the pulmonary veins, inferior vena cava, left and right atrial appendage, and posterior left atrium can be visualized. Epicardial cardiac procedures, such as ablation procedures for atrial fibrillation, can be successfully performed using this development. This report describes paracardioscopy.

Single-Patch Fold-Back Technique for Augmentation of the Superior Vena Cava in Sinus Venosus Atrial Septal Defect Associated with Partial Anomalous Pulmonary Venous Return

2015 ◽  
Vol 17 (6) ◽  
pp. 282
Author(s):  
Suguru Ohira ◽  
Kiyoshi Doi ◽  
Takeshi Nakamura ◽  
Hitoshi Yaku
Keyword(s):  
Atrial Septal Defect ◽  
Superior Vena Cava ◽  
Septal Defect ◽  
Venous Return ◽  
Superior Vena ◽  
Pulmonary Veins ◽  
Vena Cava ◽  
Sinus Venosus ◽  
Right Atrial ◽  
Anomalous Pulmonary Venous Return

Sinus venosus atrial septal defect (ASD) is usually associated with partial anomalous pulmonary venous return (PAPVR) of the right pulmonary veins to the superior vena cava (SVC), or to the SVC-right atrial junction. Standard procedure for repair of this defect is a patch roofing of the sinus venosus ASD and rerouting of pulmonary veins. However, the presence of SVC stenosis is a complication of this technique, and SVC augmentation is necessary in some cases. We present a simple technique for concomitant closure of sinus venosus ASD associated with PAPVR and augmentation of the SVC with a single autologous pericardial patch.

Outcomes of the Extracardiac Fontan Procedure Using Cardiopulmonary Bypass: Early Results

2014 ◽  
Vol 17 (3) ◽  
pp. 173 ◽  
Author(s):  
Murat Ugurlucan ◽  
Eylem Yayla Tuncer ◽  
Fusun Guzelmeric ◽  
Eylul Kafali ◽  
Omer Ali Sayin ◽  
...  
Keyword(s):  
Cardiopulmonary Bypass ◽  
Fontan Procedure ◽  
Fontan Operation ◽  
Arterial Oxygen Saturation ◽  
Vena Cava ◽  
Arterial Oxygen ◽  
Shunt Operation ◽  
Early Results ◽  
The Mean ◽  
Extracardiac Fontan

<p><strong>Background</strong>: Although the avoidance of cardiopulmonary bypass during the Fontan procedure has potential advantages, using cardiopulmonary bypass during this procedure has no adverse effects in terms of morbidity and mortality rates. In this study, we assessed the postoperative outcomes of our first 9 patients who have undergone extracardiac Fontan operation by the same surgeon using cardiopulmonary bypass.</p><p><strong>Methods</strong>: Between September 2011 and April 2013,  9 consecutive patients (3 males and 6 females) underwent extra-cardiac Fontan operation. All operations were performed under cardiopulmonary bypass at normothermia by the same surgeon.  The age of patients ranged between 4 and 17 (9.8 ± 4.2) years. Previous operations performed on these patients were modified Blalock-Taussig shunt procedure in 2 patients, bidirectional cavopulmonary shunt operation in 6 patients, and pulmonary arterial banding in 1 patient. Except 2 patients who required intracardiac intervention, cross-clamping was not applied. In all patients, the extracardiac Fontan procedure was carried out by interposing an appropriately sized tube graft between the infe-rior vena cava and right pulmonary artery.</p><p><strong>Results</strong>: The mean intraoperative Fontan pressure and transpulmonary gradient were 12.3 ± 2.5 and 6.9 ± 2.2 mm Hg, respectively. Intraoperative fenestration was not required. There was no mortality and 7 patients were discharged with-out complications. Complications included persistent pleural effusion in 1 patient and a transient neurological event in 1 patient. All patients were weaned off mechanical ventila-tion within 24 hours. The mean arterial oxygen saturation increased from 76.1% ± 5.3% to 93.5% ± 2.2%. All patients were in sinus rhythm postoperatively. Five patients required blood and blood-product transfusions. The mean intensive care unit and hospital stay periods were 2.9 ± 1.7 and 8.2 ±  1.9 days, respectively.</p><p><strong>Conclusions</strong>: The extracardiac Fontan operation per-formed using cardiopulmonary bypass provides satisfactory results in short-term follow-up and is associated with favor-able postoperative hemodynamics and morbidity rates.</p>

Congenital Horner and Scimitar syndrome in a newborn: a previously unreported combination

2020 ◽  
Vol 13 (11) ◽  
pp. e238018
Author(s):  
Joana Carvalho ◽  
Mariana Maia ◽  
Ágata Mota ◽  
Teresa Martins
Keyword(s):  
Multidisciplinary Approach ◽  
Septal Defect ◽  
Inferior Vena ◽  
Superior Vena ◽  
Pulmonary Veins ◽  
Vena Cava ◽  
Scimitar Syndrome ◽  
Left Superior Vena Cava ◽  
Dilated Coronary Sinus ◽  
Rule Out

Here we report a case of a term newborn presenting with left palpebral ptosis, anisocoria and heterochromia as well as cleft palate and heart murmur. Congenital Horner syndrome was suspected and a thoracoabdominal CT scan was performed to rule out neuroblastoma. This revealed an anomalous drainage of right pulmonary veins to a collector that drains to the inferior vena cava, leading to the diagnosis of Scimitar syndrome. Echocardiogram showed an ostium secundum atrial septal defect, enlarged right chambers and a dilated coronary sinus due to a persistent left superior vena cava. The combination of Horner and Scimitar syndrome has never been described before. This case should encourage clinicians to use a multidisciplinary approach in order to guarantee an adequate diagnosis and management.

scholarly journals P649 Before and after: sinus venosus atrial septal defect

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
I Marco Clement ◽  
R Eiros ◽  
R Dalmau ◽  
T Lopez ◽  
G Guzman ◽  
...  
Keyword(s):  
Atrial Septal Defect ◽  
Left Atrium ◽  
Atrial Flutter ◽  
Superior Vena Cava ◽  
Right Atrium ◽  
Septal Defect ◽  
Superior Vena ◽  
Pulmonary Veins ◽  
Vena Cava ◽  
The Right

Abstract Introduction The diagnosis of sinus venosus atrial septal defect (SVASD) is complex and requires special imaging. Surgery is the conventional treatment; however, transcatheter repair may become an attractive option. Case report A 60 year-old woman was admitted to the cardiology department with several episodes of paroxysmal atrial flutter, atrial fibrillation and atrioventricular nodal reentrant tachycardia. She reported a 10-year history of occasional palpitations which had not been studied. A transthoracic echocardiography revealed severe right ventricle dilatation and moderate dysfunction. Right volume overload appeared to be secondary to a superior SVASD with partial anomalous pulmonary venous drainage. A transesophageal echocardiography confirmed the diagnosis revealing a large SVASD of 16x12 mm (Figure A) with left-right shunt (Qp/Qs 2,2) and two right pulmonary veins draining into the right superior vena cava. Additionally, it demonstrated coronary sinus dilatation secondary to persistent left superior vena cava. CMR and cardiac CT showed right superior and middle pulmonary veins draining into the right superior vena cava 18 mm above the septal defect (Figures B and C). After discussion in clinical session, a percutaneous approach was planned to correct the septal defect and anomalous pulmonary drainage. For this purpose, anatomical data obtained from CMR and CT was needed to plan the procedure. During the intervention two stents graft were deployed in the right superior vena cava. The distal stent was flared at the septal defect level so as to occlude it while redirecting the anomalous pulmonary venous flow to the left atrium (Figure D). Control CT confirmed the complete occlusion of the SVASD without residual communication from pulmonary veins to the right superior vena cava or the right atrium (Figure E). Anomalous right superior and middle pulmonary veins drained into the left atrium below the stents. Transthoracic echocardiographies showed progressive reduction of right atrium and ventricle dilatation. The patient also underwent successful ablation of atrial flutter and intranodal tachycardia. She is currently asymptomatic, without dyspnea or arrhythmic recurrences. Conclusions In this case, multimodality imaging played a key role in every stage of the clinical process. First, it provided the diagnosis and enabled an accurate understanding of the patient’s anatomy, particularly of the anomalous pulmonary venous connections. Secondly, it allowed a transcatheter approach by supplying essential information to guide the procedure. Finally, it assessed the effectiveness of the intervention and the improvement in cardiac hemodynamics during follow-up. Abstract P649 Figure.

Pattern of plasma progesterone, oestradiol-17β, luteinizing hormone and androgen in non-pregnant buffalo (Bubalus bubalis)

1982 ◽  
Vol 100 (2) ◽  
pp. 279-284 ◽  
Author(s):  
R. C. Arora ◽  
R. S. Pandey
Keyword(s):  
Luteinizing Hormone ◽  
Peak Level ◽  
Systemic Circulation ◽  
Bubalus Bubalis ◽  
High Concentration ◽  
Plasma Progesterone ◽  
Blood Samples ◽  
Androgen Level ◽  
The Mean ◽  
Low Levels

Abstract. Domestic buffaloes were used to characterize the pattern of progesterone, oestradiol-17β, LH and androgen in the systemic circulation following infertile insemination. Concentrations of hormones were measured by RIA in blood samples collected daily or at alternate days following insemination. The concentration of progesterone was lowest on the day of insemination, and increased significantly to a peak level of 4.00 ± 0.60 ng/ml by day 13 post insemination. After day 17, it declined significantly (P < 0.01) to reach low levels by day 21. The concentration of oestradiol-17β was high at the time of insemination and declined significantly (P < 0.01) by day 2 after insemination. It was maintained around the basal level till day 18 with minor peaks in between this period. It again rose significantly (P < 0.01) at subsequent oestrus. The mean level of LH was highest at the time of insemination, and declined significantly (P < 0.01) by day 1 post insemination. It did not vary appreciably till the animal returned to oestrus. The oestrous value of LH and progesterone were negatively correlated (r = −0.77). The androgen level was observed to be high at insemination in 3 out of 5 animals, but the overall pattern of this steroid was inconsistent during the period studied. A high concentration of androgen was recorded in all the animals from day 2–5 before the onset of oestrus.

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