32 results on '"S. Garekar"'
Search Results
2. Pulmonary valve replacement and left pulmonary arterioplasty in repaired tetralogy of Fallot through left vertical axillary thoracotomy.
- Author
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Malankar DP, Patil S, Kandavel D, and Garekar S
- Abstract
Different surgical approaches have been described for pulmonary valve replacement in patients with pulmonary regurgitation post tetralogy of Fallot repair-repeat median sternotomy, left anterior or antero-lateral thoracotomy, and left posterolateral thoracotomy. Every approach has its merits and drawbacks. In this case report, we describe a technique of pulmonary valve replacement and left pulmonary arterioplasty through left vertical axillary thoracotomy. The procedure was safe, efficient, and quick, and had a cosmetically better outcome., Competing Interests: Conflict of interestThe author(s) declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© Indian Association of Cardiovascular-Thoracic Surgeons 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
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- 2025
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3. Handmade Bicuspid Valved Polytetrafluoroethylene Conduit for Right Ventricular Outflow Tract Reconstruction.
- Author
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Malankar DP, Dhake S, Mhatre A, Soni B, Kandavel D, Bamne S, and Garekar S
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- Humans, Child, Preschool, Male, Female, Child, Infant, Adolescent, Heart Valve Prosthesis, Retrospective Studies, Ventricular Outflow Obstruction surgery, Heart Ventricles surgery, Treatment Outcome, Echocardiography, Heart Defects, Congenital surgery, Polytetrafluoroethylene, Prosthesis Design
- Abstract
Background: Excellent outcomes of right ventricle to pulmonary artery conduits with polytetrafluoroethylene (PTFE) valves have been reported. The purpose of this study was to analyze the short-term results of our handmade PTFE bicuspid valved conduit (VC) for right ventricular outflow tract reconstruction. Methods: Between September 2019 and May 2023, bicuspid PTFE-VC was implanted in 17 patients at a median age of 2.5 years (range, 3 months to 13.6 years). The PTFE-VC was fashioned from a commercially available PTFE tube graft (14 mm in three patients, 16 mm in three patients, 18 mm in one patient, 20 mm in three patients, and 22 mm in seven patients) and 0.1 mm thick PTFE membrane for the leaflet material. Valve function was assessed by echocardiogram after the implantation. The conduit reoperation and the conduit dysfunction were analyzed. There were no early deaths, but there was one late death. Results: There were no postoperative in-hospital deaths. Follow-up echocardiograms were available for 14 of 17 patients. The median follow-up was 21 months (range, 7-49 months). Conduit stenosis was none or trivial in 11 patients while it was mild in two and moderate in one patient and severe in 0 patients. Conduit insufficiency was mild or trivial in all 14 patients. By the end of the study period, freedom from reoperation/reintervention was 100%. There were no episodes of aneurysmal dilatation of the conduit or endocarditis. Conclusions: Handmade bicuspid PTFE VC shows good short-term outcome, with no significant valve dysfunction and no reintervention. A longer follow-up is necessary to evaluate the long-term advantages of using the handmade bicuspid PTFE VC., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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4. Anomalous right coronary artery from the pulmonary artery in an infant with tetralogy of Fallot.
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Garekar S, Sheth R, Patil S, Soni B, and Malankar DP
- Abstract
An anomalous right coronary artery from the pulmonary artery (ARCAPA) is a rare congenital anomaly that does not have the typical presentation of the more common anomalous left coronary artery. We present an infant with tetralogy of Fallot with atypical findings on the preoperative echocardiogram. A cardiac computerized tomographic (CT) scan showed ARCAPA. This was confirmed intraoperatively and repaired successfully. Close attention to coronaries on echocardiography and a low threshold for additional imaging can successfully diagnose ARCAPA in the presence of additional congenital heart defects., Competing Interests: There are no conflicts of interest., (Copyright: © 2024 Annals of Pediatric Cardiology.)
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- 2023
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5. Redo-ALCAPA Repair With Left Subclavian Artery-to-Left Main Coronary Bypass for Left Coronary Atresia.
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Malankar DP, Mali S, Dhake S, Soni B, Kandavel D, Mhatre A, Bind D, Bhargava R, Raj J, Sheth R, and Garekar S
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- Female, Humans, Infant, Child, Subclavian Artery surgery, Coronary Artery Bypass methods, Pulmonary Artery surgery, Bland White Garland Syndrome surgery, Coronary Vessel Anomalies diagnostic imaging, Coronary Vessel Anomalies surgery, Cardiac Surgical Procedures methods
- Abstract
Different surgical techniques have been described for the primary repair of anomalous left coronary artery arising from the pulmonary artery (ALCAPA); however, very few techniques are described for management of coronary artery occlusion following ALCAPA repair. We present a case of a 7-year-old girl with left main coronary atresia status-post left coronary button transfer for ALCAPA in infancy. She underwent redo-sternotomy and left subclavian artery-to-left main coronary artery bypass plus mitral valve repair and had an uneventful postoperative course.
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- 2023
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6. Giant Right Atrial Aneurysm in an Infant.
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Garekar S, Sheth R, Chaubal N, Chaubal J, Mali S, Dhake S, Soni B, and Malankar DP
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- Pregnancy, Infant, Humans, Female, Heart Atria diagnostic imaging, Heart Atria surgery, Coronary Vessels, Heart Aneurysm diagnostic imaging, Heart Aneurysm surgery, Atrial Appendage
- Abstract
Right atrial aneurysm (RAA) is a rare congenital anomaly with a diverse clinical spectrum. We present a case of antenatal detection of a giant RAA. The infant had 3 episodes of staring spells presumed to be thrombo-embolic phenomena originating from the RAA. The infant underwent successful RAA resection with preservation of the right coronary artery that was displaced from its usual position due to invagination of the RAA in the subepicardial space of the right atrio-ventricular groove.
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- 2022
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7. Neo-cusp Reconstruction Procedure for Aortic Regurgitation Induced by Transcatheter Occluder Device for Ventricular Septal Defect Closure.
- Author
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Garekar S, Sheth R, Mali S, Dhake S, Mhatre A, Bind D, Kandavel D, Soni B, and Malankar D
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- Cardiac Catheterization methods, Child, Humans, Male, Treatment Outcome, Aortic Valve Insufficiency etiology, Aortic Valve Insufficiency surgery, Cardiac Surgical Procedures adverse effects, Heart Septal Defects, Ventricular complications, Heart Septal Defects, Ventricular surgery, Septal Occluder Device adverse effects
- Abstract
Aortic regurgitation after transcatheter device closure of a perimembranous ventricular septal defect is a known complication. We present the case of an 11-year-old boy with severe aortic valve regurgitation due to cusp perforation complicating previous device closure of a ventricular septal defect. The patient underwent successful aortic valve repair (neo-cusp reconstruction technique) by replacement of a cusp and shaving off of a rim of the device 5 years after device closure.
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- 2022
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8. Fontan procedure on deep hypothermic circulatory arrest: Short-term results and technique.
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Malankar DP, Mali S, Dhake S, Mhatre A, Bind D, Soni B, Kandavel D, Raj J, Patel P, and Garekar S
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Background: Various operative strategies are described for the Fontan procedure. In this study, we describe our short-term results and technique of Fontan procedure on cardiopulmonary bypass (CPB) and deep hypothermic circulatory arrest (DHCA)., Methods: This was a retrospective study of 32 patients, median age of 6 years (4-19 years) and median weight of 20 kg (13-51 kg), who underwent Fontan procedure on CPB and DHCA from July 2016 to July 2021., Results: The median CPB time was 125 min (77-186 min), the median DHCA time was 42 min (27-50 min), and the median Fontan pressure was 14 mmHg (10-18 mmHg). The median time to extubation was 4 h (1-20 h), the duration of chest tube drainage was 8 days (5-24 days), and the median intensive care unit stay was 4 days (3-8 days). The presence of heterotaxy was associated with longer duration of pleural drainage ( P = 0.01). There was no operative mortality and no major adverse events such as seizures, gross neurological deficits, or arrhythmias in the postoperative period., Conclusions: Fontan procedure can be safely performed on CPB and DHCA with good operative results. This operative strategy may be used in special circumstances like in patients with situs and systemic venous anomalies and those requiring repair of a complex intracardiac defect. Long-term follow-up will be required to evaluate if this strategy has any impact on the neurodevelopmental outcome and the long-term sequelae of Fontan., Competing Interests: There are no conflicts of interest., (Copyright: © 2022 Annals of Pediatric Cardiology.)
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- 2022
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9. Single-Stage Unifocalization and Intracardiac Repair Using Two Tube Grafts.
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Malankar DP, Mali S, Garekar S, and Sheth R
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- Child, Preschool, Collateral Circulation, Humans, Infant, Male, Pulmonary Artery surgery, Retrospective Studies, Cardiac Surgical Procedures, Heart Defects, Congenital surgery, Heart Septal Defects, Ventricular surgery, Pulmonary Atresia surgery
- Abstract
Unifocalization of the major aortopulmonary collaterals (MAPCAs) followed by intracardiac repair with ventricular septal defect (VSD) closure and restoration of right ventricle-to-pulmonary artery continuity is the ultimate treatment goal in a case of VSD with pulmonary atresia and MAPCAs. It may be achieved in a single stage or may require multiple surgeries. We present a case of a 2-year-old boy with VSD with pulmonary atresia who underwent single-stage unifocalization of MAPCAs through the midline followed by intracardiac repair using 2 polytetrafluoroethylene tube grafts: one for unifocalization and other as a bicuspid valved right ventricle-to-pulmonary artery conduit., (Copyright © 2022 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.)
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- 2022
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10. Valved reverse Potts shunt in a case of pulmonary hypertension due to pulmonary veno-occlusive disease.
- Author
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Garekar S, Meeran T, Dhake S, and Malankar D
- Abstract
Idiopathic pulmonary hypertension has a predictably morbid natural history with an absence of a uniformly successful treatment strategy. We describe our palliative surgical strategy in a symptomatic teenager. A 16-year-old girl, with a recent diagnosis of severe suprasystemic pulmonary hypertension, with severe right ventricular dysfunction, presented with syncope and World Health Organization functional class 4 symptoms. Blood and imaging work up revealed changes suggestive of pulmonary veno-occlusive disease. She failed to improve with oral pulmonary vasodilators and was listed for heart and lung transplant. Pending the transplant, a 10-mm handmade valved tube graft was placed between descending thoracic aorta and the proximal left pulmonary artery, on cardiopulmonary bypass. She had an uneventful recovery period with an early improvement in her symptoms. She was discharged home on aspirin and oral pulmonary vasodilators. At last follow up, 4 months post procedure, her functional capacity and right ventricular function had improved. The valved Potts shunt proved to be helpful in improving her symptomatology and as a bridge to transplant., Competing Interests: Conflicts of interestThe authors declare that they have no conflict of interest., (© Indian Association of Cardiovascular-Thoracic Surgeons 2020.)
- Published
- 2021
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11. Early experience with pediatric cardiac transplantation in a limited resource setting.
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Garekar S, Meeran T, Patel V, Patil S, Dhake S, Mali S, Mhatre A, Bind D, Gaur A, Sinha S, Shetty V, Sabnis K, Soni B, Malankar D, and Mulay A
- Abstract
Background: Pediatric heart transplantation is a now a well-established and standard treatment option for end stage heart failure for various conditions in children. Due to logistic issues, it is not an option for in most pediatric cardiac centres in the third world., Aim: We sought to describe our early experience in the current era in India., Methods: This is a short term retrospective chart review of pediatric patients who underwent heart transplantation at our centre. Mean/Median with standard deviation /range was used to present data., Results: Twenty patients underwent orthotopic heart transplant between January 2016 and June 2019. The median age at transplant was 12.4years (range 3.3 to 17.3 years). The median weight was 23.2kg (range 10-80kg). The mean donor/recipient weight ratio was 1.62± 0.84. The mean ICU stay was 12.1days. The mean follow up post transplant was 2.03± 0.97years (range 10 days-3.57years). The 1 month and the 1 year survival was 100%. Biopsies were positive for significant rejection in 7 patients (35%). At the time of last follow-up, 3 patients (15%) had expired. The major post transplant morbidities were mechanical circulatory support (n=3), hypertension with seizure complex (n=3), post transplant lympho-proliferative disorder (n=1), pseudocyst of pancreas (n=1), coronary allograft vasculopathy (n=3) and systemic hypertension (n=7). All surviving patients (n=17) were asymptomatic at last follow up., Conclusion: The results suggest acceptable short term outcomes in Indian pediatric patients can be achieved after heart transplantation in the current era. Significant rejection episodes and coronary allograft vasculopathy need careful follow up., Competing Interests: There are no conflicts of interest., (Copyright: © 2020 Annals of Pediatric Cardiology.)
- Published
- 2020
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12. Author's reply.
- Author
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Garekar S and Bharati A
- Abstract
Competing Interests: There are no conflicts of interest.
- Published
- 2020
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13. Primary Arterial Switch Operation for TGA/IVS and Regressed Left Ventricle: How and When to Use Left Ventricular Assist Device.
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Malankar DP, Patil S, Mali S, Dhake S, Mhatre A, Bind D, Soni B, Kandavel D, and Garekar S
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- Arterial Switch Operation, Echocardiography, Female, Heart Ventricles diagnostic imaging, Heart Ventricles pathology, Heart-Assist Devices, Humans, Infant, Male, Retrospective Studies, Transposition of Great Vessels diagnostic imaging, Treatment Outcome, Heart Ventricles surgery, Transposition of Great Vessels surgery
- Abstract
Purpose: Numerous attempts have been made to extend the boundaries of arterial switch operation (ASO) in children presenting late with transposition of great arteries with intact ventricular septum (TGA/IVS) and regressed left ventricle (rLV). Many children tolerate the delayed ASO uneventfully, whereas others need mechanical circulatory support (MCS) to sustain the systemic circulation while the left ventricle undergoes retraining., Description: In this article, we describe six consecutive children with TGA/IVS and rLV who underwent primary ASO., Results: Three were managed medically, while three required MCS in the form of Centrimag left ventricular assist device (LVAD). All patients survived the operation and were discharged home in a stable condition., Conclusions: Primary ASO can be safely performed in children with TGA/IVS and rLV, provided the center has MCS options. Supporting the rLV with LVAD is feasible and can be achieved safely.
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- 2020
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14. Virtual three-dimensional model for preoperative planning in a complex case of a double outlet right ventricle.
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Garekar S, Bharati A, Kothari F, Patil S, Dhake S, Mali S, Mhatre A, Bind D, Joshi A, Soni B, and Malankar D
- Abstract
A 3-year-old child with a complex variant of double outlet right ventricle achieved a successful biventricular repair after detailed delineation of the intracardiac anatomy on multimodality imaging. A virtual three-dimensional (3D) model based on computed tomography was used successfully in the absence of an actual 3D-printed model. This case report seeks to highlight and hence increase the utilization of the virtual 3D model in resource-limited settings., Competing Interests: There are no conflicts of interest.
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- 2019
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15. Use of Left Ventricular Assist Device After Arterial Switch Operation in Late Presenting D-Transposition of Great Arteries-A Technique for Retraining the Regressed Left Ventricle.
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Malankar DP, Patil S, Mali S, Dhake S, Soni B, Kandavel D, Mhatre A, Bind D, and Garekar S
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- Echocardiography, Heart Ventricles diagnostic imaging, Heart Ventricles physiopathology, Humans, Infant, Male, Arterial Switch Operation, Heart-Assist Devices, Postoperative Care, Transposition of Great Vessels surgery
- Abstract
The preferred approach for patients with D-transposition of the great arteries with an intact ventricular septum (DTGA/IVS) is the arterial switch operation (ASO). In those patients presenting late, with regressed left ventricle (LV), successful LV preparation is of paramount importance to achieve this goal. We present a toddler with DTGA/IVS who underwent ASO followed by successful left ventricular retraining with postoperative left ventricular assist device support with CentriMag centrifugal pump.
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- 2019
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16. Left Main Coronary Angioplasty of a 9-Year-Old Child With Bioresorable Vascular Scaffold. DOI: 10.1002/ccd.26896.
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Ravat H, Garekar S, and Changela V
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- 2017
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17. Left Main coronary angioplasty of a 9-year-old child with bioresorbable vascular scaffold [corrected].
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Ravat H, Garekar S, and Changela V
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- Child, Coronary Angiography, Coronary Stenosis diagnosis, Coronary Vessels diagnostic imaging, Female, Humans, Prosthesis Design, Tomography, X-Ray Computed, Absorbable Implants, Angioplasty, Balloon, Coronary methods, Coronary Stenosis surgery, Coronary Vessels surgery, Tissue Scaffolds
- Abstract
Familial hypercholesterolemia is an autosomal dominant disorder due to mutations in the low-density lipoprotein receptor gene, characterized by skin and tendon xanthomas, xanthelasmas, and increased risk of premature coronary artery disease. Here, we report a case of 9-year-old girl who presented with angina and dyspnoea on exertion with xanthomas and an elevated serum cholesterol and triglyceride. She had severe stenosis of the left main coronary artery (LMCA) requiring angioplasty and placement of Bioresorbable vascular scaffold (BVS). This is the first case report in literature of the use of BVS for LMCA stenosis in a 9-year-old child. © 2017 Wiley Periodicals, Inc., (© 2017 Wiley Periodicals, Inc.)
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- 2017
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18. MRA-based 3D-printed heart model-an effective tool in the pre-surgical planning of DORV.
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Bharati A, Garekar S, Agarwal V, Merchant SA, and Solanki N
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A three-dimensional (3D) printed heart model based on contrast-enhanced MR angiography data was obtained in an 8-month-old male child with double-outlet right ventricle. The model could successfully show the spatial relationship between the aortic annulus, the pulmonary valve and the ventricular septal defect. The patient underwent complete intracardiac repair based on the 3D model. MR angiography images could be successfully used to create a true-size 3D heart model, which significantly helped in assessing the routability of the ventricular septal defect to the aorta, leading to successful intracardiac repair in our patient.
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- 2016
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19. Clinical Application and Multidisciplinary Assessment of Three Dimensional Printing in Double Outlet Right Ventricle With Remote Ventricular Septal Defect.
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Garekar S, Bharati A, Chokhandre M, Mali S, Trivedi B, Changela VP, Solanki N, Gaikwad S, and Agarwal V
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- Cardiac Surgical Procedures, Child, Child, Preschool, Double Outlet Right Ventricle surgery, Female, Heart Septal Defects, Ventricular surgery, Heart Ventricles abnormalities, Heart Ventricles pathology, Humans, Imaging, Three-Dimensional, Infant, Magnetic Resonance Imaging, Male, Printing, Three-Dimensional, Tomography, X-Ray Computed, Treatment Outcome, Double Outlet Right Ventricle diagnostic imaging, Heart Septal Defects, Ventricular diagnostic imaging, Models, Anatomic
- Abstract
Background: Double outlet right ventricle (DORV) with two well-developed ventricles and with a remote ventricular septal defect (VSD) may present a therapeutic challenge. Echocardiographic imaging of such complex cases does not always provide all of the information required to decide on an operative approach (biventricular or univentricular) and to design an intracardiac baffle to direct left ventricular outflow through the VSD and to the aorta for biventricular repair. A three dimensional (3D) printed model of the heart based upon data derived from computed tomography (CT) or magnetic resonance imaging (MRI) may contribute to a more complete appreciation of the intracardiac anatomy., Methods: From April to September 2015, six consecutive patients with DORV and remote VSD underwent CT/MRI scans. Data sets from these studies were used to generate life-size 3D models using a 3D printer. We compared the assessment of 3D printed heart model findings with information obtained from echocardiography, CT, or cardiac MRI and with details of the surgeon's intraoperative direct observations when available. Quantification of the information provided by the 3D model was achieved using a unique scale that was created for the purpose of this study. The accuracy and utility of information derived preoperatively from the models were assessed., Results: Six data sets from six patients were analyzed. Five data sets could be successfully used to create sandstone models using 3D printing. The five patients ranged from 7 months to 11 years of age and weighed 6.7 to 26 kg. The spatial orientation of the heart in the thorax, the relationships of the great arteries and the semilunar valves, the size and location of the VSD were well appreciated in all models, as were the anticipated dimensions and orientation of a surgically planned interventricular baffle. Three of the five patients underwent successful biventricular repair., Conclusion: The 3D printed models scored higher than conventional imaging, with respect to most aspects of the surface spatial orientation and intracardiac anatomy. The models are a useful adjunct in preoperative assessment of complex DORV. The unique scale helps quantify the advantages and limitations of the 3D heart models., (© The Author(s) 2016.)
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- 2016
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20. Embedded tooth fragment masquerading as keloid for 11 months.
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Radhakrishnan S, Chopra A, Waraich G, and Garekar S
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- Adolescent, Foreign Bodies etiology, Foreign Bodies surgery, Humans, Keloid diagnosis, Lacerations complications, Male, Diagnostic Errors, Foreign Bodies diagnosis, Lip injuries, Tooth Fractures complications
- Abstract
A foreign body retained in the skin can originate from numerous sources and most of the time these foreign bodies are removed without any sequelae. The present article reports a case of persistent swelling in the lower lip misdiagnosed as keloid, which later turned out to be an embedded tooth fragment identified post spontaneous extrusion after 11 months.
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- 2015
21. Horse-shoe lung-rediscovered via volume rendered images.
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Bharati A, Merchant SA, Garekar S, and Patel T
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Horseshoe lung, usually associated with pulmonary venolobar syndrome, is a rare congenital anomaly involving the fusion of the postero-basal segments of the right and left lungs across the midline. The fused segment or the isthmus lies posterior to the pericardium and anterior to the aorta. The associated pulmonary venolobar syndrome involves anomalous systemic arterial supply and anomlaous systemic venous drainage of the right lung. With the advent of MDCT imaging, we can diagnose this rare condition as well all its associated anomalies non-invasively. Volume-rendered techniques greatly simplify the complex anatomy and provide easy understanding of the same.
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- 2013
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22. Staged pacemaker implantation in a preterm with hydrops fetalis due to complete heart block.
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Karande T, Garekar S, Kulkarni S, and Rao S
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- 2013
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23. Neonatal pulmonary artery thrombosis.
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Jadhav M, Sapre A, Garekar S, and Kulkarni S
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Pulmonary artery thrombosis in neonates is a rare entity. We describe two neonates with this diagnosis; their presentation, evaluation, and management. These cases highlight the importance of this differential diagnosis when evaluating the cyanotic neonate.
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- 2012
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24. Use of Bosentan in neonatal post cardiac surgery pulmonary hypertension.
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Pawar R, Kasar P, Garekar S, and Kulkarni S
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We report the use of Bosentan in the post-operative period of a neonate with obstructed infradiaphragmatic total anomalous pulmonary venous connection and severe pulmonary arterial hypertension. To our knowledge, this is the first report of use of Bosentan in this situation.
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- 2009
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25. Retroaortic left innominate vein - Incidence, association with congenital heart defects, embryology, and clinical significance.
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Kulkarni S, Jain S, Kasar P, Garekar S, and Joshi S
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In a retrospective analysis of echocardiograms, the incidence of retroaortic innominate vein was found to be 0.55% amongst children with congenital heart disease. It was most commonly associated with tetralogy of Fallot and right aortic arch.
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- 2008
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26. Intermediate follow-up following intravascular stenting for treatment of coarctation of the aorta.
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Forbes TJ, Moore P, Pedra CA, Zahn EM, Nykanen D, Amin Z, Garekar S, Teitel D, Qureshi SA, Cheatham JP, Ebeid MR, Hijazi ZM, Sandhu S, Hagler DJ, Sievert H, Fagan TE, Ringwald J, Du W, Tang L, Wax DF, Rhodes J, Johnston TA, Jones TK, Turner DR, Pass R, Torres A, and Hellenbrand WE
- Subjects
- Adolescent, Adult, Aortic Dissection diagnostic imaging, Aortic Dissection etiology, Aortic Dissection pathology, Angioplasty, Balloon adverse effects, Aortic Aneurysm diagnostic imaging, Aortic Aneurysm etiology, Aortic Aneurysm pathology, Aortic Coarctation diagnostic imaging, Aortic Coarctation pathology, Brazil, Child, Constriction, Pathologic diagnostic imaging, Constriction, Pathologic etiology, Constriction, Pathologic pathology, Europe, Follow-Up Studies, Humans, Practice Guidelines as Topic, Prosthesis Failure, Research Design, Retrospective Studies, Time Factors, Treatment Outcome, United States, Angioplasty, Balloon instrumentation, Aorta, Thoracic diagnostic imaging, Aorta, Thoracic pathology, Aortic Coarctation therapy, Aortography methods, Cardiac Catheterization, Magnetic Resonance Angiography, Stents, Tomography, X-Ray Computed
- Abstract
Background: We report a multiinstitutional study on intermediate-term outcome of intravascular stenting for treatment of coarctation of the aorta using integrated arch imaging (IAI) techniques., Methods and Results: Medical records of 578 patients from 17 institutions were reviewed. A total of 588 procedures were performed between May 1989 and Aug 2005. About 27% (160/588) procedures were followed up by further IAI of their aorta (MRI/CT/repeat cardiac catheterization) after initial stent procedures. Abnormal imaging studies included: the presence of dissection or aneurysm formation, stent fracture, or the presence of reobstruction within the stent (instent restenosis or significant intimal build-up within the stent). Forty-one abnormal imaging studies were reported in the intermediate follow-up at median 12 months (0.5-92 months). Smaller postintervention of the aorta (CoA) diameter and an increased persistent systolic pressure gradient were associated with encountering abnormal follow-up imaging studies. Aortic wall abnormalities included dissections (n = 5) and aneurysm (n = 13). The risk of encountering aortic wall abnormalities increased with larger percent increase in CoA diameter poststent implant, increasing balloon/coarc ratio, and performing prestent angioplasty. Stent restenosis was observed in 5/6 parts encountering stent fracture and neointimal buildup (n = 16). Small CoA diameter poststent implant and increased poststent residual pressure gradient increased the likelihood of encountering instent restenosis at intermediate follow-up., Conclusions: Abnormalities were observed at intermediate follow-up following IS placement for treatment of native and recurrent coarctation of the aorta. Not exceeding a balloon:coarctation ratio of 3.5 and avoidance of prestent angioplasty decreased the likelihood of encountering an abnormal follow-up imaging study in patients undergoing intravascular stent placement for the treatment of coarctation of the aorta. We recommend IAI for all patients undergoing IS placement for treatment of CoA., ((c) 2007 Wiley-Liss, Inc.)
- Published
- 2007
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27. Procedural results and acute complications in stenting native and recurrent coarctation of the aorta in patients over 4 years of age: a multi-institutional study.
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Forbes TJ, Garekar S, Amin Z, Zahn EM, Nykanen D, Moore P, Qureshi SA, Cheatham JP, Ebeid MR, Hijazi ZM, Sandhu S, Hagler DJ, Sievert H, Fagan TE, Ringewald J, Du W, Tang L, Wax DF, Rhodes J, Johnston TA, Jones TK, Turner DR, Pedra CA, and Hellenbrand WE
- Subjects
- Adolescent, Adult, Age Distribution, Age Factors, Angioplasty, Balloon instrumentation, Angioplasty, Balloon mortality, Aortic Coarctation diagnostic imaging, Aortic Diseases diagnostic imaging, Aortic Diseases mortality, Aortography, Brazil epidemiology, Child, Child, Preschool, England epidemiology, Equipment Failure, Foreign-Body Migration diagnostic imaging, Humans, Logistic Models, Odds Ratio, Peripheral Vascular Diseases diagnostic imaging, Prosthesis Design, Recurrence, Research Design, Retrospective Studies, Risk Assessment, Risk Factors, Time Factors, Tomography, X-Ray Computed, Treatment Outcome, United States epidemiology, Angioplasty, Balloon adverse effects, Aortic Coarctation therapy, Aortic Diseases etiology, Foreign-Body Migration etiology, Peripheral Vascular Diseases etiology, Stents
- Abstract
Background: We report a multi-institutional experience with intravascular stenting (IS) for treatment of coarctation of the aorta., Methods and Results: Data was collected retrospectively by review of medical records from 17 institutions. The data was broken down to prior to 2002 and after 2002 for further analysis. A total of 565 procedures were performed with a median age of 15 years (mean=18.1 years). Successful reduction in the post stent gradient (<20 mm Hg) or increase in post stent coarctation to descending aorta (DAo) ratio of >0.8 was achieved in 97.9% of procedures. There was significant improvement (P<0.01) in pre versus post stent coarctation dimensions (7.4 mm+/-3.0 mm vs. 14.3+/-3.2 mm), systolic gradient (31.6 mm Hg+/-16.0 mm Hg vs. 2.7 mm Hg+/-4.2 mm Hg) and ratio of the coarctation segment to the DAo (0.43+/-0.17 vs. 0.85+/-0.15). Acute complications were encountered in 81/565 (14.3%) procedures. There were two procedure related deaths. Aortic wall complications included: aneurysm formation (n=6), intimal tears (n=8), and dissections (n=9). The risk of aortic dissection increased significantly in patients over the age of 40 years. Technical complications included stent migration (n=28), and balloon rupture (n=13). Peripheral vascular complications included cerebral vascular accidents (CVA) (n=4), peripheral emboli (n=1), and significant access arterial injury (n=13). Older age was significantly associated with occurrence of CVAs. A significant decrease in the technical complication rate from 16.3% to 6.1% (P<0.001) was observed in procedures performed after January 2002., Conclusions: Stent placement for coarctation of aorta is an effective treatment option, though it remains a technically challenging procedure. Technical and aortic complications have decreased over the past 3 years due to, in part, improvement in balloon and stent design. Improvement in our ability to assess aortic wall compliance is essential prior to placement of ISs in older patients with coarctation of the aorta., (Copyright (c) 2007 Wiley-Liss, Inc.)
- Published
- 2007
- Full Text
- View/download PDF
28. Is stent placement effective for palliation of right ventricle to pulmonary artery conduit stenosis?
- Author
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Aggarwal S, Garekar S, Forbes TJ, and Turner DR
- Subjects
- Adolescent, Adult, Arterial Occlusive Diseases complications, Child, Child, Preschool, Female, Humans, Infant, Male, Palliative Care, Ventricular Outflow Obstruction complications, Arterial Occlusive Diseases surgery, Pulmonary Artery, Stents, Ventricular Outflow Obstruction surgery
- Abstract
Objectives: This study was designed to evaluate the outcome of stent placement (SP) for conduit discrete stenosis using predefined criteria., Background: Right ventricle (RV) to pulmonary artery (PA) conduits are often associated with complications, such as stenosis, requiring multiple surgical replacements., Methods: Patients who underwent primary or repeat SP were included. Indications for SP were clinical symptoms and/or RV to systolic blood pressure (SBP) ratio (RV:SBP) >0.65 by echocardiography. Our definition of success was a decrease in RV:SBP by >20%, a final RV:SBP ratio of <0.65, or resolution of symptoms., Results: Stents were placed successfully in 28 of 31 patients (90%), including 3 patients who underwent the procedure solely for symptoms. The RV:SBP ratio decreased (0.75 +/- 0.17 vs. 0.52 +/- 0.12, p < 0.001), and the conduit diameter increased (postero-anterior 9.1 +/- 2.9 vs. 12.0 +/- 2.8 mm, lateral 8.3 +/- 2.2 vs. 11.6 +/- 2.4 mm, p < 0.001). In the 28 patients with successful SP, 8 (29%) remained free from second intervention. In the remaining patients, the median time to re-intervention was 16 months (range 6 to 44 months). Second transcatheter interventions (4 SP, 4 balloon dilation) were successful in 8 of 13 patients. Complications included balloon rupture (n = 4), stent fracture (n = 2), and pseudoaneurysm formation (n = 1)., Conclusions: Initial SP has excellent intermediate outcomes, successfully postponing surgical intervention for the majority of patients. Conduit restenosis may be successfully treated with a second transcatheter intervention. On the basis of these data, SP is likely the procedure of choice for patients with a discrete stenosis of the RV to PA conduit.
- Published
- 2007
- Full Text
- View/download PDF
29. Electrocardiogram basics for the busy pediatrician.
- Author
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Garekar S, Epstein ML, Kamat D, and Singh HR
- Subjects
- Physicians, Electrocardiography methods, Pediatrics methods
- Published
- 2006
- Full Text
- View/download PDF
30. Intermediate outcomes of fenestrated Fontan procedures.
- Author
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Garekar S, Walters HL, Delius RE, Thomas RL, and Ross RD
- Subjects
- Child, Preschool, Humans, Infant, Treatment Outcome, Fontan Procedure methods, Heart Defects, Congenital surgery
- Published
- 2006
- Full Text
- View/download PDF
31. Heat stress response results in increased macrophage inflammatory protein-2 concentration in a lipopolysaccharide-exposed macrophage cell line.
- Author
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Garekar S, Heidemann SM, and Glibetic M
- Subjects
- Animals, Cell Count, Cell Line, Cell Survival drug effects, Chemokine CXCL2, Lipopolysaccharides pharmacology, Macrophages drug effects, Macrophages physiology, Mice, RNA, Messenger biosynthesis, RNA, Messenger isolation & purification, Tumor Necrosis Factor-alpha biosynthesis, Heat Stress Disorders metabolism, Lipopolysaccharides toxicity, Monokines biosynthesis
- Abstract
Pretreatment with heat confers cardiopulmonary protection in endotoxemic animals. This mechanism may be through suppression of pro-inflammatory mediator production. The objectives of this study were to determine the effect of heat stress on tumor necrosis factor-alpha (TNF-alpha) and macrophage inflammatory protein-2 (MIP-2) in a lipopolysaccharide-exposed macrophage cell line and to study the relationship between TNF-alpha and MIP-2 production. Heat pretreatment resulted in decreased TNF-alpha transcription and translation by lipopolysaccharide-exposed macrophages; and increased MIP-2 concentration without additional effect in transcription. Administration of TNF-alpha antibody prior to exposure to lipopolysaccharide resulted in increased MIP-2 concentration suggesting that TNF-alpha acts to down-regulate MIP-2 production. The mechanism by which heat stress causes an increase in MIP-2 concentration may be secondary to its suppressing effect on TNF-alpha production.
- Published
- 2006
- Full Text
- View/download PDF
32. Is it safe to perform cardiac catheterizations on adults with congenital heart disease in a pediatric catheterization laboratory?
- Author
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Garekar S, Paules MM, Reddy SV, Turner DR, Sanjeev S, Wynne J, Epstein ML, Karpawich PP, Ross RD, and Forbes TJ
- Subjects
- Adolescent, Adult, Aged, Female, Follow-Up Studies, Humans, Male, Middle Aged, Retrospective Studies, Cardiac Catheterization methods, Coronary Care Units, Heart Defects, Congenital diagnosis, Hospitals, Pediatric
- Abstract
Objective: To determine the complication rate during the catheterization in adults with congenital heart disease (CHD) in a pediatric catheterization laboratory (PCL)., Background: An increasing number of patients with CHD are surviving into adulthood, with diagnostic and interventional cardiac catheterization being essential for the management of their disease. The complication rate during the catheterization of adults with CHD has not been reported., Methods: A retrospective chart review was performed on all adult patients (>18 years) with CHD who underwent diagnostic or interventional catheterization in our PCL within the past 8.5 years., Results: A total of 576 procedures were performed on 436 adult patients (median age 26 years). Complex heart disease was present in 387/576 (67%) procedures. An isolated atrial septal defect or patent foramen ovale was present in 115/576 (20%) procedures, and 51/576 (9%) procedures were performed on patients with structurally normal hearts with arrhythmias. Interventional catheterization was performed in 378/576 (66%) procedures. There were complications during 61/576 (10.6%) procedures; 19 were considered major and 42 minor. Major complications were death (1), ventricular fibrillation (1), hypotension requiring inotropes (7), atrial flutter (3), retroperitoneal hematoma, pneumothorax, hemothorax, aortic dissection, renal failure, myocardial ischemia and stent malposition (1 each). The most common minor complications were vascular entry site hematomas and hypotension not requiring inotropes. Procedures performed on patients > or = 45 years of age had a 19% occurrence of complications overall compared with 9% occurrence rate in patients of age < 45 years (P < 0.01)., Conclusions: The complication rate during the catheterization of adults with CHD in a PCL is similar to the complication rate of children with CHD undergoing cardiac catheterization. The older subset of patients are more likely to encounter complications overall. The encountered complications could be handled effectively in the PCL. With screening in place, it is safe to perform cardiac catheterization on most adults with CHD in a PCL., (Copyright 2005 Wiley-Liss, Inc.)
- Published
- 2005
- Full Text
- View/download PDF
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