Transcatheter Occlusion Research Articles

Effect on Pulmonary Atery Presssres after Transcatheter Occlusion of Patent Ductus Arteriosus with Severe Pulmonary Artery Hypertension

Objective: The purpose of this study was to ascertain how the patent ductus arteriosus will respond to trans catheter closure on the pulmonary artery pressure. Methods: All patients having clinical and echocardiographic evidence of hemodynamically significant isolated PDA and patients with PASP > 20 mmHg will be labelled as PDA with PAH, while patients with mean PASP > 60 mmHg will be labelled as PDA with severe PAH. These patients were all included in the research. Both pulmonary artery pressure measurements and echocardiography were done. Once the patient has been assessed, the viability of a transcatheter closure PDA has been confirmed. Results: The Mean age of the patients were 10.6±8.18 years. Out 40 participants 35% were males and 65% were females. A significant variation (p=0.003) in MPA pressure was observed in patients after balloon occlusion. A significant variation in RV higher (0.007) and lower (0.003) pressure was observed in patients after balloon occlusion. A significant variation (p=0.005) in LV Higher pressure was observed in patients after balloon occlusion. A significant variation (p=0.003) in higher Aorta pressure was observed in patients after balloon occlusion. Conclusion: After PDA closure, some individuals with borderline hemodynamic data with PDA and PAH may get worse or continue to have PAH. Care must be taken while providing these individuals with permanent closure.

Trisomy 18: Anti-Congestive Drug Treatment Combined with Transcatheter Occlusion of an Arterial Duct and Misaligned Perimembranous VSD

<i>Background </i>Trisomy 18 syndrome, the second most common autosomal numerical chromosomal disorder, is associated with multiple-organ abnormalities. Cardiovascular malformations are just one of those affecting prenatal and postnatal life expectancy. In general, the type and scope of treatment are still controversial and are handled very differently. Palliative care usually focuses on improving quality of life or life-threatening conditions. <i>Objective</i> Based on parental treatment preferences for their child, we report the anticongestive drug treatment and consecutive transcatheter therapy of cardiac shunt lesions in a girl with trisomy 18 who was born small-for-date. <i>Methods </i>Anticongestive drug treatment was switched form diuretic-directed drug treatment to our standard care for chronic heart failure in infants, which consists of a ß1-specific beta-blocker (bisoprolol) in combination with an ACE-inhibitor (lisinopril) and a low-dose mineralocorticoid-blocker (spironolactone). In addition, the strategy and technique of semi-invasive transcatheter treatment of significant cardiovascular shunt lesions is reported. At 3 months of age and weighing 2.4kg, a significant arterial duct was first occluded percutaneously with an MVP-5Q device, followed by transcatheter closure of a slightly misaligned perimembranous VSD six weeks later. Both interventions were performed on a spontaneously breathing only sedated baby. <i>Results </i>The device strategy for treating the hemodynamically significant cardiovascular shunt lesions was technically feasible and effective in combination with medication. However, the medium- or long-term outcome cannot be defined due to the limitations caused by the syndrome. <i>Conclusion</i> As part of a medical risk-benefit assessment, the parents should make the decision as to whether their child should be treated or not; the responsible physicians have individually to offer the best treatment option.

Electrophysiological and histological characterization of atrial scarring in a model of isolated atrial myocardial infarction.

Background: Characterization of atrial myocardial infarction is hampered by the frequent concurrence of ventricular infarction. Theoretically, atrial infarct scarring could be recognized by multifrequency tissue impedance, like in ventricular infarction, but this remains to be proven. Objective: This study aimed at developing a model of atrial infarction to assess the potential of multifrequency impedance to recognize areas of atrial infarct scar. Methods: Seven anesthetized pigs were submitted to transcatheter occlusion of atrial coronary branches arising from the left coronary circumflex artery. Six weeks later the animals were anesthetized and underwent atrial voltage mapping and multifrequency impedance recordings. The hearts were thereafter extracted for anatomopathological study. Two additional pigs not submitted to atrial branch occlusion were used as controls. Results: Selective occlusion of the atrial branches induced areas of healed infarction in the left atrium in 6 of the 7 cases. Endocardial mapping of the left atrium showed reduced multi-frequency impedance (Phase angle at 307kHz: from -17.1° ± 5.0° to -8.9° ± 2.6°, p < .01) and low-voltage of bipolar electrograms (.2 ± 0.1mV vs. 1.9 ± 1.5mV vs., p < .01) in areas affected by the infarction. Data variability of the impedance phase angle was lower than that of bipolar voltage (coefficient of variability of phase angle at307kHz vs. bipolar voltage: .30 vs. .77). Histological analysis excluded the presence of ventricular infarction. Conclusion: Selective occlusion of atrial coronary branches permits to set up a model of selective atrial infarction. Atrial multifrequency impedance mapping allowed recognition of atrial infarct scarring with lesser data variability than local bipolar voltage mapping. Our model may have potential applicability on the study of atrial arrhythmia mechanisms.

Re-conceptualization of the “Chinese Expert Guidelines for the Prevention of Stroke Associated with Patent Foramen Ovale” for the Management of Perioperative Stroke in Patients with Lung Cancer

The Chinese Heart Journal published the “Chinese Expert Guidelines for the Prevention of Stroke Associated with Patent Foramen Ovale” (hereafter referred to as “the Guidelines”) in 2021. The Guidelines were initiated by Professor Yushun Zhang of the No.1 Affiliated Hospital of Xi’an Jiaotong University, and 55 domestic experts participated in their discussion and formulation. The Guidelines focus on eight key issues in the prevention of stroke associated with patent foramen ovale (PFO), including definition and epidemiology, anatomical features, ultrasound diagnosis, clinical screening, and prevention and treatment of PFO-associated stroke. The prevention and treatment of PFO-associated stroke include pharmacological prevention, prevention of PFO with transcatheter occlusion and transcatheter occlusion of PFO. Patients with PFO are at elevated risk of perioperative stroke. In China, lung cancer ranks first in incidence among malignant tumors. The number of lung cancer surgeries is increasing each year, and the incidence of PFO in the population is approximately 25%. Although perioperative stroke in patients with lung cancer due to the presence of PFO has rarely been reported, given the high disability rate of stroke, incidence of PFO, and incidence of lung cancer, herein, we consider the Guidelines for the management of perioperative stroke in lung cancer. Our aim is to provide further perspectives in decreasing the risk of perioperative stroke in patients with lung cancer and PFO, to improve their quality of life and increase the safety of surgery.

Hepatic Arteriovenous Malformation in a Preterm Infant With High-Output Cardiac Failure

Congenital hepatic arteriovenous malformations (HAVM) are rare and serious with a known high mortality rate. They are mostly described in the term population and, if symptomatic, present with early-onset congestive heart failure. To our knowledge, there have been no published cases of an affected very preterm infant. Prenatal diagnosis and preprocedural planning are paramount in these critically ill infants. Strategies for management of HAVM differ depending on the size of both the infant and HAVM as well as severity of symptoms. Management may include supportive pharmacologic therapy, transcatheter embolization, and surgical resection or ligation. In this report, we present the case of a 28-week gestation infant with high-output cardiac failure secondary to prenatally diagnosed hepatic arteriovenous malformation. On day of life 3, the infant underwent successful transcatheter occlusion. However, despite maximal medical management and partial embolization of his HAVM, he did not survive.

Outcomes and Determinant Factors of Percutaneous Transcatheter Occlusion among Children with Patent Ductus Arteriosus in the East Coast Malaysia: A 10 Year Experience

Introduction: Transcatheter closure was a well-established procedure in patent ductus arteriosus (PDA). The aim of the study was to determine the outcomes, median time and PDAs closure from diagnosis and the predictive factors which influenced the decision for PDA closure. Material and methods: A 10-year retrospective record review was performed involving patients who had undergone transcatheter closure of PDA from January 2007 to January 2017 at a single centre in the North-eastern of Peninsular Malaysia. Descriptive statistics were used to examine all variables. Kaplan-Meier survival analysis was applied to determine median time for diagnosis and transcatheter closure of PDA. Multiple Cox regression analysis was used to identify predictors for early intervention of PDA closure. Results: A total of 123 patients were recruited with 65.9% of them were predominantly female. The age at the time of diagnosis was between 4-day to 14.5-year-old and median age for undergoing the procedure was 2.6-year-old (range:3-month to 15.8-year-old). The PDA size ranged between 0.2-12mm with 59% of the patients had large size PDA. Successful closure rate was achieved in 96.2 % with 3.8 % having very minimal residual shunt at 2 years post procedure. Complications were noted in 17 patients (4.0% major, 9.8% minor). Overall, the median time to diagnose and to close PDA were 6 months and 16.9 months respectively. Earlier intervention was likely to be performed in younger children (p&lt;0.001) with weight of less than 10 kg (p&lt;0.001). Conclusions: Transcatheter device closure was safe and effective in children with PDA with excellent outcome and minimal complication. Age and weight were the determinant factors for early PDA closure.

Transcatheter Occlusion of Left-To-Right Shunts in Premature Infants with Bronchopulmonary Dysplasia

Introduction: Patent ductus arteriosus (PDA) and atrial septal defects (ASDs) cause pulmonary overcirculation, potentially worsening bronchopulmonary dysplasia (BPD) in premature infants. Transcatheter device occlusion of these defects is feasible and safe, though no case-controlled studies have assessed respiratory outcomes in infants with BPD. We hypothesized infants with BPD and ASDs or PDAs would experience improved respiratory outcomes following device occlusion of these lesions as compared to those who did not. Methods: We conducted a single-center, retrospective case-control study of premature infants diagnosed with BPD and either a small to large ASD or a small to moderate PDA from 2015 to 2021. The intervention group underwent transcatheter device occlusion of their defects and the control group did not. We compared changes in BPD severity over time between these two groups. Results: The control and intervention groups demonstrated comparable baseline demographics. Of the 15 patients in the intervention group, 9 underwent PDA device occlusion and 6 underwent ASD device occlusion at median postmenstrual age of 42 weeks (IQR 41–45 weeks). Despite having higher severity BPD at baseline, there was a more pronounced improvement in BPD severity in the intervention group as compared to the control group. Discussion: Premature infants with BPD and an ASD or PDA who underwent transcatheter occlusion of their lesion demonstrated a faster rate of improvement of their BPD severity as compared to a control cohort with similar lesions who did not undergo device occlusion of their lesion.

Comparison between Cardiac CTA and Echocardiography for Assessment of Ventricular Septal Rupture Diameter and Its Effect on Transcatheter Closure.

This study is aimed at comparing cardiac computed tomographic angiography (CTA) with echocardiography in the assessment of ventricular septal perforation diameter. A total of 44 ventricular septal rupture (VSR) patients undertaking transcatheter occlusion were included and randomly divided into the CTA group and echocardiography group with a 1 : 1 ratio. Clinical data, operation-related data, and 30 d follow-up data were collected and analyzed. Incidence of closure failure, occluder displacement, poor occluder molding, and occluder waist diameter shrinkage between the two groups were not statistically different. The mean residual shunt volume in the echocardiography group (4.2 (3.1, 5.9) mm) was significantly higher than that in the CTA group (2.1 (0, 4.0) mm) with a p value of 0.005. However, no significant differences were found in all-cause mortality and incidence of operative complications within 30 days after surgery. Within the CTA group, the correlation was strongest between postoperative occluder diameter and long diameter measured by CTA with a correlation coefficient of 0.799 and p < 0.001, followed by the correlation between postoperative occluder diameter and mean diameter measured by CTA with a correlation coefficient of 0.740 and p < 0.001. The diameter measured by echocardiography was not correlated to postoperative occlude diameter. Assessment of VSR diameter by cardiac CTA is more accurate than by echocardiography.

Scimitar Syndrome with Different Features in Pediatric Patients: A Single-Center Experience

Purpose: Scimitar syndrome is a rare congenital cardiac anomaly in which pulmonary veins are drained to the inferior vena cava (IVC) instead of the left atrium and it is often associated with additional cardiac and pulmonary anomalies. Scimitar syndrome has a wide range of anatomic and clinical variations. In this article, the different clinical features of five pediatric patients with Scimitar syndrome are reported.&#x0D; Material and methods: Five patients with scimitar syndrome were diagnosed in our hospital between 2000 and 2020. The clinical findings, angiographic and surgical procedures, and follow-up of the patients are evaluated.&#x0D; Results: Five pediatric patients aged between 1.5 months and 10 years were diagnosed as Scimitar syndrome; two of the five patients were infants. All patients were symptomatic. One patient had cor triatriatum and pulmonary venous stenosis, one patient had left atrial isomerism and absence of the IVC (azygous continuity), and another patient had coarctation of the aorta. One patient had dual drainage: the IVC and left atrium with meandering pulmonary veins, which we determined as a Scimitar variant. One infant patient with pulmonary hypertension and two patients with pulmonary to systemic flow ratio (Qp/Qs) &gt;1.5 were treated surgically with the reanastomosis technique. Transcatheter occlusion of the aortopulmonary collaterals was performed in two patients using vascular plugs, coils, and onyx.&#x0D; Conclusion: In this article, the clinical findings of five pediatric patients with Scimitar syndrome were evaluated in detailed. Treatment should be planned individually in this syndrome due to Scimitar syndrome has a wide range of anatomic and clinical variations.

Pre- and postoperative left atrial appendage visualization: selecting the optimal method

Background: Atrial fibrillation (AF) is reported to be one of the main etiological factors of ischemic stroke. Transcatheter occlusion of the left atrial appendage (LAAO) is an alternative to anticoagulant therapy in the thromboembolism prevention in atrial fibrillation patients with a high bleeding risk. The role of contrast-enhanced cardiac computed tomography (CT) for preoperative assessment and postoperative control has not been sufficiently studied to the present moment.Objective: Comparison of the possibilities of transesophageal echocardiography (TEE) and computed tomography in pre- and postoperative imaging in the context of LAAO interventions.Material and methods: This retrospective cohort study included 38 patients divided into 2 groups: in the first group TEE was used for intervention planning and postoperative control, patients of the second group were examined with CT. The indicators obtained during LAA measurements were assessed, as well as the result of the intervention – according to the risk of peripheral leakage into the left atrial appendage.Results: The average left atrial appendage depth and orifice diameter according to transesophageal echocardiography were significantly smaller compared to computed tomography data (25.58 ± 4.65 versus 31.05 ± 6.41, p = 0.011; 17.21 ± 2.70 versus 18.55 ± 3.05 p = 0,006, respectively). In the computed tomography group, there was a not statistically significant trend towards a lower risk of leakage for 4–5 mm leaks (RR = 0.500; 95% CI 0.060–3.710) and for 2–3 mm leaks (RR = 0.500; 95% CI 0.150–1.540). In addition, 45 days after the intervention computed tomography revealed 5 cases of incomplete endothelialization of the device with the contrast agent leak into the LAA in the absence of peripheral leakage.Conclusion: Contrast-enhanced cardiac computed tomography, unlike transesophageal echocardiography, allows to detect incomplete occlusive device endothelialization, which may influence the choice of postoperative antithrombotic therapy. The use of computed tomography in an intervention planning for the LAAO may reduce the risk of peripheral leakage, however, this hypothesis needs to be confirmed in studies with a larger number of patients.

How I do it: Novel technique to "Unmask" and treat congenital portosystemic venous connections in congenital heart disease.

Congenital portosystemic venous connections are rare vascular anomalies that connect the portal and systemic venous circulations. These vascular lesions can lead to complex and varied physiologic manifestations in single-ventricle patients as they progress through the various stages of palliation in the Fontan pathway. Specifically, these connections may be unmasked after a superior cavopulmonary anastomosis operation, but then "re-masked" after Fontan completion. We describe the complex physiology with an illustrative case report and present a novel method to unmask these pathologic connections after Fontan completion to facilitate transcatheter occlusion and resolve downstream symptoms.

Congenital portosystemic venous shunt associated with 22q11.2 deletion syndrome: a case report

Background22q11.2 deletion syndrome (22qDS) is the most common chromosomal microdeletion syndrome and is associated with a high rate of congenital heart disease (CHD) and neurodevelopmental abnormalities. Congenital portosystemic venous shunts (CPSS) are rare developmental abnormalities of the portal venous system. The clinical manifestations of CPSS are varied, and some patients have CHD or genetic chromosomal abnormalities, but their relationship remains unknown. We report the first case of CPSS associated with 22qDS.Case presentationA newborn boy referred to our institution was diagnosed with 22qDS due to characteristic facial features and complications of tetralogy of Fallot. A subsequent newborn screening test indicated hypergalactosemia and high blood levels of ammonia and bile acids. Upon closer examination, these abnormalities were found to be caused by the CPSS. Abdominal contrast-enhanced computed tomography and angiography confirmed that abnormal blood vessels ascended from the splenic vein and short-circuited to the left renal vein. Intracardiac repair for CHD was performed at 1 year of age, followed by transcatheter occlusion of the CPSS using a multilayer device (vascular plug) and detachable coil at 2 years of age. After treatment, the abnormal blood parameters promptly normalized.ConclusionsAs the blood flow of CPSS bypasses the liver, the levels of galactose, bile acids, and ammonia in the systemic veins can increase. Some patients with CPSS have CHD, and these toxic substances may cause liver and lung lesions as well as portosystemic encephalopathy (PSE). Several genetic chromosomal abnormalities, including 22qDS, and CPSS have similar symptoms, and neurodevelopmental abnormalities, particularly those caused by PSE, may be difficult to diagnose. Blood tests, such as newborn screening, and abdominal imaging are useful in the early diagnosis of CPSS.

Detecting Patent Foramen Ovale after Cryptogenic Stroke - A Single Center Experience in Taiwan.

Cryptogenic strokes related to a patent foramen ovale (PFO) in young patients have been reported. Percutaneous transcatheter occlusion is considered a safe and effective method for achieving PFO closure. Here, we present our experience of PFO closure in a series of young patients diagnosed with cryptogenic stroke. This was a retrospective study of 62 patients who were younger than 60 years of age and previously diagnosed with cryptogenic stroke. They underwent cardiac catheterization for the diagnosis of PFO and/or device closure. Bubble and echocardiography studies, the patients' characteristics, complications, and recurrence of stroke were recorded. The Risk of Paradoxical Embolism (RoPE) score index was also calculated. Patients with a bubble study grade greater than grade I were likely to have PFO (odds ratio: 22.2 [95% confidence interval: 1.2-412.3]). The mean RoPE score in the PFO closure group was 7.18. Two patients (3.9%) developed atrial fibrillation during the procedure. Ischemic stroke recurred in two patients (3.3%). Combining a bubble study with transcranial Doppler ultrasound or transthoracic echocardiography may increase the validity of PFO diagnosis. Because of the low recurrence rate of stroke and low complication rate, it is important to identify PFO patients with a bubble study grade greater than grade I. Closure of PFO may be a good strategy for preventing recurrent stroke among such patients.

Large Ostium Secundum ASD Occlusion with Memopart ASD Occluder

Transcatheter occlusion of ASD with device is an effective,alternative to surgical repair : feasible and safe procedure with minimal complication rate and short hospital stay, as well as excellent short and long term outcome .However, large ASDs (&gt;38 mm) and defects with deficient rims are usually not offered transcatheter closure but are referred for surgical closure. Transcatheter closure also remains controversial for other complicated ASDs with comorbidities, additional cardiac features and in small children. Previous studies have shown high success rate, low complication rate and less discomfort[1,2] . With the devices and technology currently available, several cohort studies have reported successful percutaneous closure in the above-mentioned complex cases. However the feasibility and safety of transcatheter technique needs to be confirmed through larger studies and longer follow-up.

PROCEDURAL TECHNICALITIES AND OUTCOME OF TRANSCATHETER CLOSURE OF ATRIAL SEPTAL DEFECT USING OCCLUTECH DEVICE IN TERTIARY CARE CENTRE

Objective: To determine the safety and efficacy of transcatheter closure of atrial septal defects and to evaluate the initial, midterm and long-term results of the treatment.&#x0D; Study Design: Cross sectional study.&#x0D; Place and Duration of Study: Department of Paediatric Cardiology, Rawalpindi Institute of Cardiology, Rawalpindi, from Jul 2017 to Jun 2018.&#x0D; Methodology: Sixty-four patients underwent transcatheter closure of atrial septal defect. Size of the defect was measured by Transoesophageal/Transthoracic. Follow up was carried out at twenty-four hours, one month, six months and at twelve months. Early, Midterm and late complications after device occlusion were analysed using SPSS-22 statistical software.&#x0D; Results: Minimum size of atrial septal defect on echocardiography was 7 mm and maximum size was 31 mm with mean of 18.3 ± 5.7 mm. The procedure was successful in 96.8% cases. There was only one device embolization (1.56%). Cobrahead” configuration malformation of the device occurred in one case (1.56%). Mitral valve regurgitation did not occur in any of the case. There was no residual shunt across the device in the present study. ECG abnormalities associated with transcatheter closure did not occur in any of the patient. In intermediate and long-term follow up, no complication like cardiac erosion was seen in all cases under study.&#x0D; Conclusion: Transcatheter occlusion of ASD with device was found effective and safe procedure with minimal complication rate, short hospital stay, good short, intermediate and long-term results.

Mechanical hemolysis secondary to percutaneous repair of an iatrogenic Gerbode defect with the AmplatzerTM Septal Occluder

The Gerbode defect is defined as an abnormal communication between the left ventricle and the right atrium, and is etiologically classified as congenital or acquired (iatrogenic or not). The typical treatment consists of surgical repair of the shunt, but transcatheter occlusion of this condition has proven to be a safe and effective therapeutic alternative for such patients, especially for those with prior surgeries. The aim of this study was to report a case of transcatheter closure of an acquired Gerbode defect, using the Amplatzer™ Septal Occluder device, in a 58-year-old patient, with two prior mitral valve replacements, and the consequent post-procedure mechanical hemolysis.

Transcatheter closure of patent ductus arteriosus in 11 dogs and one cat after incomplete or aborted surgical ligation

ObjectiveTo describe the characteristics and outcomes of transcatheter patent ductus arteriosus (PDA) occlusion after incomplete or aborted surgical ligation in dogs and cats. AnimalsTwelve client-owned animals (11 dogs and one cat). Materials and methodsThis retrospective study describes data from animals with aborted or incomplete surgical PDA ligation that subsequently underwent transcatheter closure using endovascular methods. Patient demographics, reason for incomplete or aborted surgery, complications, and method of transcatheter occlusion were recorded. Data are presented as mean ± standard deviation or median (interquartile range), where appropriate. ResultsFor all cases, median age at surgery was 12.2 months (4.9–15.1 months) and at catheterization was 15.4 months (8.9–21.9 months), with 79 days (29–209 days) between surgical and interventional procedures. Median weight at catheterization was 4.5 kg (2.5–12.6 kg). Reasons for failed surgical ligation included hemorrhage during ductal dissection in seven dogs, residual flow in four dogs, and inability to identify the ductus in one cat. Transcatheter closure was successfully performed using a canine duct occluder in eight dogs, transarterial coil embolization in two dogs, and transvenous coil embolization in one dog and one cat. Metallic hemoclips partially obscured angiographic findings in three cases with prior surgical hemorrhage but did not prevent transcatheter closure. In all cases, ductal flow was successfully attenuated, with no or trace residual shunting on angiography and complete occlusion the following day on echocardiography. ConclusionsWhen surgery is unsuccessful, either owing to hemorrhage or residual flow, transcatheter closure of PDA is feasible, even in small patients.

Transcatheter occlusion of coronary artery fistulas in pediatric patients: Experience of a tertiary care pediatric cardiac centre in South India

Transcatheter occlusion of coronary artery fistulas in pediatric patients: Experience of a tertiary care pediatric cardiac centre in South India

Outcomes of Three Different Minimal Invasive Approaches for Secundum Atrial Septal Defect Closure: A Single Institute Experience

The aims of this retrospective study were to investigate and evaluate the safety and efficacy of three approaches for closure of secundum atrial septal defect (ASD). In this study, we reviewed clinical data for transcatheter occlusion (TCO, n=63), transthoracic occlusion (TTO, n=55), and right anterolateral minithoracotomy (RALT, n=60) techniques used for ASD closure. We compared the safety and efficacy of the three approaches. ASD size in the TTO group was similar to that in the RALT group (P=0.645) and significantly larger than that in the TCO group (P<0.001). The RALT group had more non-central types of ASD than the TTO and TCO groups (P=0.019 and P<0.001). The operative time in the TTO group was shorter than that in the TCO and RALT groups (P<0.001 and P<0.001). The ventilation time and intensive care unit duration were shorter in the TTO group than in the RALT group (P<0.001 and P<0.001). Hospital duration in the TCO group was shorter than that in the TTO and RALT groups (P<0.001 and P<0.001). There were no residual shunt and mortality in any group in hospital or during follow-up. There was no significant difference in the incidence of total complications among the three groups (P=0.738). TCO, TTO, and RALT can be performed with favorable cosmetic and clinical results for closing ASD. Appropriate patient selection is an important factor for successful closure. These techniques are promising alternatives to standard median sternotomy and merit additional study.

Transcatheter occlusion of the vertical vein in a partial anomalous pulmonary venous connection with dual Drainage, case series with literature review

Partial anomalous pulmonary venous return (PAPVR) is an uncommon type of congenital heart disease occurring due to abnormal drainage of one or more, but not all the pulmonary veins to the systemic veins or directly to the right atrium. The PAPVR might have single (to the systemic veins) or dual drainage (to the systemic as well as left atrium). Management depends on the shunt impact on the heart and lungs, and it is usually surgical correction. In case of PAPVR with dual drainage, there is a new trend of percutaneous occlusion of the vertical vein with dual drainage anatomy, so that the blood is obliged to flow to the left atrium as in normal hearts. The scope of this manuscript is to highlight the availability of this alternative option and to present our experience and outcome in 6 PAPVR patients with dual drainage treated using this percutaneous approach.