Mechanism of hemodynamic responses to occlusion of the descending thoracic aorta

1980 ◽  
Vol 238 (4) ◽  
pp. H423-H429 ◽  
Author(s):  
O. Stokland ◽  
M. M. Miller ◽  
A. Ilebekk ◽  
F. Kiil
Keyword(s):  
Inferior Vena Cava ◽  
Superior Vena Cava ◽  
Inferior Vena ◽  
Superior Vena ◽  
Vena Cava ◽  
Spinal Column ◽  
Left Ventricular Pressure ◽  
Left Ventricular ◽  
Aortic Occlusion ◽  
Systolic Volume

To examine left ventricular responses to aortic occlusion, changes in end-diastolic volume (EDV) and end-systolic volume (ESV) were estimated by ultrasonic recordings of myocardial distances in atropinized open-chest dogs. During aortic occlusion EDV and ESV increased equally, systolic left ventricular pressure (LVP) rose by 86 +/- 8 mmHg, and blood flow more than doubled in the superior vena cava and fell by 90% in the inferior vena cava. During combined occlusion of aorta and inferior vena cava, systolic LVP and superior vena cava flow did not rise above control and EDV declined. By infusing 25 +/- 2 ml/kg body wt of blood during combined occlusion, the effects of aortic occlusion could be reproduced; control values before blood infusion were reestablished by withdrawal of only one-third of the infused volume, indicating a shunt line along the spinal column. Thus during aortic occlusion, transfer of blood accounts for the rise in EDV and increased activation of the Frank-Starling mechanism; increased afterload raises ESV as much as EDV in anesthetized dogs not subjected to sympathetic stimulation. Consequently, stroke volume is maintained and systolic LVP increased.

Absent right superior vena cava with hypoplastic proximal inferior vena cava

1996 ◽  
Vol 62 (2) ◽  
pp. 566-568 ◽  
Author(s):  
H. Cem Alhan ◽  
lyas Kayacioğlu ◽  
Gülşah Tayyareci ◽  
Cantürk Çakalağaoğlu ◽  
Mustafa diz ◽  
...  
Keyword(s):  
Inferior Vena Cava ◽  
Superior Vena Cava ◽  
Inferior Vena ◽  
Superior Vena ◽  
Vena Cava

scholarly journals Advantages and disadvantages of femoral port systems in hematоlogical patients with superior vena cava syndrome

2020 ◽  
Vol 65 (4) ◽  
pp. 403-416
Author(s):  
G. M. Galstyan ◽  
M. V. Spirin ◽  
M. Yu. Drokov ◽  
I. E. Kostina ◽  
Ya. K. Mangasarova
Keyword(s):  
Inferior Vena Cava ◽  
Superior Vena Cava ◽  
Inferior Vena ◽  
Superior Vena Cava Syndrome ◽  
Superior Vena ◽  
Vena Cava ◽  
Complication Rates ◽  
Femoral Access ◽  
Advantages And Disadvantages ◽  
Vena Cava Syndrome

Background. In the superior vena cava syndrome, vein catheterisation provides an alternative for vascular access. Few reports describe the usage of femoral ports.Aim. Description of pros and contras for femoral port installation in patients with haematological malignancies and the superior vena cava syndrome.Materials and methods. This prospective non-randomised, single-centre study included 163 haematological patients implanted 72 ports in superior vena cava, 35 — in inferior vena cava and inserted with 156 non-tunnelled femoral catheters. Catheterisation properties, complications, duration of use and reasons for port and catheter removal were registered.Results. No significant differences were observed between ports in superior and inferior vena cava as per the frequency of urokinase use in catheter dysfunction, catheter dislocation, catheter-associated bloodstream and pocket infections. Differences were revealed in the catheter-associated thrombosis rate, which was higher with femoral access (17.0 % or 0.9/1000 catheter days vs. 8.3 % or 0.2/1000 catheter days, p = 0.017). Ports in inferior vena cava had a lesser duration of use than in superior vena cava (p = 0.0001). Unlike femoral ports, non-tunnelled femoral catheters had higher rates of catheter-associated thrombosis (9/1000 vs. 0.9/1000 catheter days, p = 0.002) and infection (4.9/1000 vs. 0.3/1000 catheter days, p = 0.002). One lymphoma therapy course required one femoral port or 1 to 14 (median 3) non-tunnelled femoral catheters.Conclusion. Femoral port implantation is a necessary measure in patients with the superior vena cava syndrome. It has advantages in terms of catheterisation frequency, lower infectious and thrombotic complication rates compared to non-tunnelled femoral catheters.

Venous anomalies

2017 ◽  
Author(s):  
Sara Thorne ◽  
Sarah Bowater
Keyword(s):  
Inferior Vena Cava ◽  
Superior Vena Cava ◽  
Inferior Vena ◽  
Superior Vena ◽  
Vena Cava ◽  
Venous Drainage ◽  
Scimitar Syndrome ◽  
Anomalous Pulmonary Venous Drainage ◽  
Venous Anomalies

This chapster discusses anomalies of systemic venous drainage and anomalies of pulmonary venous drainage. It discusses superior vena cava (SVC) anomalies, inferior vena cava (IVC), total anomalous pulmonary venous drainage (TAPVD), partial anomalous pulmonary venous drainage (PAPVD), and scimitar syndrome.

scholarly journals Failure of Femoral Access to Electrophysiological Evaluation Due to Aplasia of the Inferior Vena Cava

2016 ◽  
Vol 10 ◽  
pp. CMC.S38153
Author(s):  
Mariana S. Parahuleva ◽  
Mehmet Burgazli ◽  
Nedim Soydan ◽  
Wolfgang Franzen ◽  
Norbert Guttler ◽  
...  
Keyword(s):  
Inferior Vena Cava ◽  
Superior Vena Cava ◽  
Right Atrium ◽  
Inferior Vena ◽  
Superior Vena ◽  
Vena Cava ◽  
Azygos Vein ◽  
Interesting Case ◽  
Hepatic Veins ◽  
Femoral Access

We report an interesting case of a man with a persistent left superior vena cava (PLSVC) with left azygos vein who underwent electrophysiological evaluation. Further evaluation revealed congenital dilated azygos vein, while a segment connecting the inferior vena cava (IVC) to the hepatic vein and right atrium was missing. The azygos vein drained into the superior vena cava, and the hepatic veins drained directly into the right atrium. The patient did not have congenital anomalies of the remaining thoracoabdominal vasculature.

scholarly journals Vena Caval Anomalies

2013 ◽  
Vol 3 ◽  
pp. 51 ◽  
Author(s):  
Ramyah Rajakulasingam ◽  
Rohin Francis ◽  
Ramanan Rajakulasingam
Keyword(s):  
Aortic Valve ◽  
Inferior Vena Cava ◽  
Superior Vena Cava ◽  
Inferior Vena ◽  
Superior Vena ◽  
Vena Cava ◽  
Left Superior Vena Cava ◽  
Persistent Left Superior Vena ◽  
Cardiac Procedures ◽  
The Right

Anomalous vena cavae can have significant implications for procedures on the right side of the heart. We report a rare anatomical configuration in a 44-year-old female, which to the best of our knowledge, is the first report of such an association. She had a bicuspid aortic valve in conjunction with a persistent left superior vena cava (PLSVC) draining into the coronary sinus, and a left-sided inferior vena cava (IVC) draining into a left superior vena cava via the hemiazygos vein. Comprehensive assessment of these anomalies is crucial given the widespread use of invasive cardiac procedures.

Modified total cavopulmonary shunt as a staged Fontan operation

2017 ◽  
Vol 26 (9) ◽  
pp. 701-703
Author(s):  
Hidetsugu Asai ◽  
Tsuyoshi Tachibana ◽  
Yasushige Shingu ◽  
Hiroki Kato ◽  
Satoru Wakasa ◽  
...  
Keyword(s):  
Inferior Vena Cava ◽  
Right Ventricular ◽  
Superior Vena Cava ◽  
Inferior Vena ◽  
Superior Vena ◽  
Fontan Operation ◽  
Vena Cava ◽  
Left Superior Vena Cava ◽  
The Right ◽  
Cavopulmonary Shunt

The left superior vena cava became occluded in an infant with hypoplastic left heart syndrome. After a bidirectional Glenn procedure, he presented with severe oxygen desaturation and right ventricular dysfunction; the left superior vena cava drained into the inferior vena cava through collateral veins. As salvage therapy, we created a modified total cavopulmonary shunt using only autologous tissue in which the right hepatic vein and inferior vena cava drained into the pulmonary artery via a lateral tunnel in the right atrium. Immediately after surgery, his oxygen saturation increased and right ventricular function improved.

Sign in / Sign up

Export Citation Format

Share Document