Persistent left superior vena cava and its clinical correlation - A cadaveric study

2021 ◽  
Vol 12 (4) ◽  
pp. 118-121
Author(s):  
Sachendra Kumar Mittal ◽  
Rekha Parashar ◽  
Pankaj Kumar Singh ◽  
Leena Jadon

Background: Presented is a case of persistent left superior vena cava draining into the right atrium through coronary sinus and finally opens into right atrium. Abnormalities of the vascular system are more commonly seen due to its importance in circulation. Persistent left superior vena cava is rare but important congenital vascular anomaly. It results when the left superior cardinal vein caudal to the innominate vein fails to regress.The venous anomaly of a persistent left superior vena cava (PLSVC) affects 0.3%–0.5% of the general population. Normally the superior vena cava is a single vascular structure formed by the union of right and left brachiocephalic veins which are in turn formed by the union of internal jugular and subclavian veins of corresponding side, draining the head and neck as well as the superior extremity. Aims and Objective: To evaluate the accuracy of persistent left superior vena cava and to find out the opening of PLSVC and formations of both SVC. Materials and Methods: During routine dissection of Thorax, we have opened the thoracic cage and take out the Heart. during that we found separate SVC and then we did the study on this PLSVC in the Department of Anatomy, Jaipur National University Institute for Medical Sciences and Research Centre (JNUIMSRC) Jaipur and National Institute of Medical Sciences and Research (NIMS & R). Results: We found persistent left superior vena cava in two cadavers out of 30 cadavers (6.66%) one was 64-year-old male cadaver and another 72-year-old male cadaver. Both the vena cavae were formed as of brachiocephalic veins of the corresponding side. The persistent left superior vena cava opened into the enlarged coronary sinus that drained into the right atrium between the opening of inferior vena cava and right atrio-ventricular orifice. Conclusion: It has important clinical implications in certain clinical interventions. It may complicate placementof cardiac catheters or pacemaker leads.

2015 ◽  
Vol 05 (01) ◽  
pp. 075-078
Author(s):  
Sushma R Kotian ◽  
Antony Sylvan D Souza ◽  
Praveena Ravichandran ◽  
Pallavi Bhat ◽  
Mamatha Hosapatna

AbstractAbnormalities of the vascular system are always of extreme interest due to its importance in circulation. Normally the superior vena cava is a single vascular structure formed by the union of right and left brachiocephalic veins which are in turn formed by the union of corresponding internal jugular and subclavian veins, draining the head and neck as well as the superior extremity. However during routine dissection in the Department of Anatomy, Kasturba Medical College, Manipal, we came across a case of double superior vena cava with persistent left superior vena cava in a 58-year-old male cadaver. Both the vena cavae were formed as continuations of brachiocephalic veins of the corresponding side. The persistent left superior vena cava opened into the enlarged coronary sinus that drained into the right atrium between the opening of inferior venacava and right atrioventricular orifice. No communication was observed between the two vena cavae. A persistent left superior vena cava does not by itself produce any physiological derangement. But it has important clinical implications in certain clinical interventions. It may complicate placement of cardiac catheters or pacemaker leads. Awareness of this anomaly may therefore reduce confusions and thus would help to avoid further complications.


2009 ◽  
Vol 10 (3) ◽  
pp. 214-215 ◽  
Author(s):  
Lúcia F. Parreira ◽  
Carlos C. Lucas ◽  
Célia C. Gil ◽  
José D. Barata

Patency of the left superior vena cava, although uncommon, is the most frequent anomaly of the thoracic vessels. It has been diagnosed in 0.3–0.5% of the general population. A persistent left superior vena cava (PLSVC) results from the abnormal persistence of an embryological vessel that normally involutes into the coronary sinus during fetal life. Catheterization of this vessel, including hemodialysis (HD) catheter placement, appears to be safe if adequate drainage of the PLSVC to the right atrium exists. We present the case of a 50-year-old HD patient in which the placement of a catheter through the left internal jugular vein, needed for HD treatment, revealed a PLSVC. After the demonstration of adequate draining of the vessel into the right atrium, replacement of this catheter for a cuffed tunneled HD catheter was done, which has since been used successfully for HD.


2013 ◽  
Vol 70 (12) ◽  
pp. 1162-1164
Author(s):  
Mihailo Vukmirovic ◽  
Lazar Angelkov ◽  
Filip Vukmirovic ◽  
Irena Tomasevic-Vukmirovic

Introduction. Persistent left superior vena cava is the most common thoracic venous abnormality which is usually asymptomatic, found incidentally during pacemaker implantation. The main problem is related to reaching the appropriate pacing site and ensuring stable lead placement. Case report. We reported a successful implantation of a biventricular pacing and defibrillator device (CRT-D) via a persistent left superior vena cava in a 55-year-old man with dilated cardiomyopathy and severe heart failure. A persistent left superior vena cava was detected during CRT-D implantation. We managed to position electrodes in the right ventricular outflow tract, a posterior branch of the coronary sinus and in the right atrium. Conclusion. Congenital anomalies of thoracic veins may complicate lead placement on the appropriate and stable position. The presented case demonstrates a successful biventricular pacing and defibrillator therapy device implantation in a patient with dilated cardiomyopathy and severe heart failure.


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