Persistent Left Superior Vena Cava: Unanticipated Stumbling Block in Cardiac Resynchronization Therapy
Shodhan Aithal1, Anunay Gupta1, Sandeep Bansal1
1Cardiology, Vardhman Mahavir Medical College and Safdarjung Hospital, Delhi, IND.
Cureus
|October 1, 2024
Summary
Persistent left superior vena cava (PLSVC) is a rare anomaly complicating cardiac device implantation. This report details a successful technique for implanting cardiac resynchronization therapy (CRT) leads despite PLSVC challenges.
Area of Science:
- Cardiology
- Medical Imaging
- Anatomical Studies
Background:
- Persistent left superior vena cava (PLSVC) is a rare congenital anomaly, often associated with congenital heart defects.
- PLSVC can present significant challenges during cardiac interventions due to its anomalous course and acute angulation.
- Cardiac resynchronization therapy (CRT) device implantation requires precise lead placement, which can be complicated by PLSVC.
Observation:
- The unanticipated presence of PLSVC was noted during a planned CRT device implantation.
- The anatomical anomaly created difficulties for standard lead insertion pathways.
- Acute angulation associated with PLSVC posed a risk to successful lead deployment.
Findings:
- A novel technique involving a Judkins Right catheter for support and a coronary wire was employed for initial lead placement.
- A 'buddy wire' technique was utilized to facilitate the precise placement of the left ventricle (LV) lead.
- Successful implantation of all three CRT leads was achieved despite the anatomical challenges presented by PLSVC.
Implications:
- This case demonstrates a feasible approach to overcoming PLSVC-related challenges in CRT implantation.
- The described technique offers a potential solution for complex lead placements in patients with this anomaly.
- Successful CRT implantation in the presence of PLSVC can improve patient outcomes and expand treatment options.
Related Concept Videos
01:29Cardiomyopathy V: Interprofessional Care
2
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
2
01:29Cardiomyopathy III: Hypertrophic Cardiomyopathy
1
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
1
01:30Cardiomyopathy II: Dilated Cardiomyopathy
1
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
1
01:29Cardiomyopathy IV: Restrictive Cardiomyopathy
2
Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
2
01:26Imbalances in Cardiac Output
1.4K
The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
1.4K
01:25Dysrhythmias VI: Management of Dysrhythmias
3
Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
3