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Vaidya S, Rechtsman MC, Benalcazar WA. Polarization and Weak Topology in Chern Insulators. Phys Rev Lett 2024; 132:116602. [PMID: 38563931 DOI: 10.1103/physrevlett.132.116602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 11/08/2023] [Accepted: 01/30/2024] [Indexed: 04/04/2024]
Abstract
Chern insulators, and more broadly, topological insulators, present an obstruction to the construction of exponentially localized electronic Wannier functions. This implies a fundamental difficulty in determining whether such insulators exhibit electric polarization. Here, we show that these insulators can indeed exhibit bound charges and adiabatic currents consistent with changes in bulk polarization over space and time, respectively. We also show that the change in polarization across crystalline domains within these strong topological insulators is quantized in the presence of crystalline symmetries.
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Affiliation(s)
- Sachin Vaidya
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Mikael C Rechtsman
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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Batra U, Nathany S, Sharma M, B P A, Vaidya S, Pasricha S, Mehta A. 202P Molecular kaleidoscope of EGFR mutant NSCLC: Be as precise as possible. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00455-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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Eysenbach L, Chick J, Vaidya S, Shin D, Valji K, Monsky W, Johnson E. Abstract No. 585 Utilization of a Dedicated Room Flow Coordinator Improves Efficiency in Interventional Radiology. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
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Greenberg C, Shin D, Abad-Santos M, Monroe E, Ingraham C, Vaidya S, Bertino F, Johnson E, Makary M, Chick J. Abstract No. 589 Reconstruction of Upper Extremity and Thoracic Central Veins Using Dedicated Venous Stents: Deployment of 75 Stents in 46 Patients. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
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Constantino D, Cook M, Shin D, Meissner M, Abad-Santos M, Bertino F, Monroe E, Hua E, Vaidya S, Chick J. Abstract No. 590 Sharp Recanalization of Symptomatic Chronic Central Venous Occlusions Using the Rösch-Uchida Transjugular Liver Access Set. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
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Kim S, Abdella S, Abid F, Afinjuomo F, Youssef SH, Holmes A, Song Y, Vaidya S, Garg S. Development and Optimization of Imiquimod-Loaded Nanostructured Lipid Carriers Using a Hybrid Design of Experiments Approach. Int J Nanomedicine 2023; 18:1007-1029. [PMID: 36855538 PMCID: PMC9968428 DOI: 10.2147/ijn.s400610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/14/2023] [Indexed: 02/24/2023] Open
Abstract
Background Imiquimod (IMQ) is an immunomodulating drug that is approved for the treatment of superficial basal cell carcinoma, actinic keratosis, external genital warts and perianal warts. However, IMQ cream (Aldara®) has several drawbacks including poor skin permeation, local toxicity, and compromised patient compliance as a topical pharmacological option. Methods Our research aimed to develop and optimize nanostructured lipid carriers (NLCs) containing IMQ for the first time using a hybrid design of experiments approach. The optimized formulation was then incorporated into a matrix-type topical patch as an alternative dosage form for topical application and evaluated for IMQ deposition across different skin layers in comparison to the performance of the commercial product. Additionally, our work also attempted to highlight the possibility of implementing environment-friendly practices in our IMQ-NLCs formulation development by reviewing our analytical methods and experimental designs and reducing energy and solvent consumption where possible. Results In this study, stearyl alcohol, oleic acid, Tween® 80 (polysorbate 80), and Gelucire® 50/13 (Stearoyl polyoxyl-32 glycerides) were selected for formulation development. The formulation was optimized using a 2k factorial design and a central composite design. The optimized formulation achieved the average particle size, polydispersity index, and zeta potential of 75.6 nm, 0.235, and - 30.9 mV, respectively. Subsequently, a matrix-type patch containing IMQ-NLCs was developed and achieved a statistically significant improvement in IMQ deposition in the deeper skin layers. The IMQ deposition from the patch into the dermis layer and receptor chamber was 3.3 ± 0.9 µg/cm2 and 12.3 ± 2.2 µg/cm2, while the commercial cream only deposited 1.0 ± 0.8 µg/cm2 and 1.5 ± 0.5 µg/cm2 of IMQ, respectively. Conclusion In summary, IMQ-NLC-loaded patches represent great potential as a topical treatment option for skin cancer with improved patient compliance.
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Affiliation(s)
- Sangseo Kim
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Sadikalmahdi Abdella
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Fatima Abid
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Franklin Afinjuomo
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Souha H Youssef
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Amy Holmes
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Yunmei Song
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Sachin Vaidya
- Central Adelaide Local Health Network, The Queen Elizabeth Hospital, Woodville, SA, 5011, Australia
| | - Sanjay Garg
- Centre for Pharmaceutical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA, 5000, Australia,Correspondence: Sanjay Garg, Tel +61 8 8302 1575, Email
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Vaidya N, Karmacharya RM, Vaidya S, Bade S, Bade S, Paudel K, Kandel G, Thapa P, Maharjan R, Duwal S, Karki Y. Massive Hemoptysis and Pulmonary Thromboembolism in a Patient with Pulmonary Tuberculosis: A Therapeutic Conundrum Managed with Bronchial Artery Embolization. Kathmandu Univ Med J (KUMJ) 2022; 20:522-525. [PMID: 37795736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Hemoptysis is a crucial entity taking into account its morbidity and mortality. Pulmonary tuberculosis is the leading cause for massive hemoptysis in our part of the world, which if left untreated may be life threatening. We present a case of a 37-year-old male patient with pulmonary tuberculosis with concurrent pulmonary thromboembolism presenting with massive hemoptysis, which was successfully managed with Bronchial Artery Embolization. This case represents that this measure can be a viable therapeutic choice for a patient with a severe lifethreatening hemoptysis, particularly when other treatment options are unavailable or ineffective.
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Affiliation(s)
- N Vaidya
- Department of Internal Medicine, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - R M Karmacharya
- Department of General Surgery (Cardiothoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Vaidya
- Department of General Surgery (Cardiothoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Bade
- Department of Internal Medicine, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Bade
- Department of Internal Medicine, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - K Paudel
- Department of Internal Medicine, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - G Kandel
- Department of General Surgery (Cardiothoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - P Thapa
- Interventional Radiology Department, Grande International Hospital, Kathmandu, Nepal
| | - R Maharjan
- Catheterization Laboratory, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - S Duwal
- Catheterization Laboratory, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - Y Karki
- Catheterization Laboratory, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
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Karmacharya RM, Singh AK, Vaidya S, Tuladhar SM, Devbhandari M, Lama B, Kharel BB, Basnet S. Analysis of Lung Cancer Cases Presenting in Outpatient Department of University Hospital of Nepal. Kathmandu Univ Med J (KUMJ) 2022; 20:452-455. [PMID: 37795723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Background Lung cancer is one of the leading cause of cancer related death. Most common histopathology of lung cancer is non-small cell carcinoma of which adenocarcinoma is the most common. There are limited number of studies done in Nepal to know different aspects of lung cancer. Objective To know demographic parameters of patients diagnosed as lung cancer in a university hospital. The study also aims to know the different histopathological diagnosis of lung cancer. Method All the patients presenting to outpatient department (Cardio Thoracic and Vascular unit) of Dhulikhel Hospital, if are diagnosed as cancer of lung/bronchus will be included in the study. The duration of the study was January 2017 to December 2021. The details on age, gender, presenting symptoms, histopathology of lung cancer, operability will be included in database and will be analyzed. Result There were total of 127 patients diagnosed as lung cancer. Male:female ratio was 1.7:1. Overall mean age was 63.23 years (SD 13.5 years, Range 19-89 years). Non small cell carcinoma was the most common type of lung cancer with 83.7%. In non small cell carcinoma, most common type was Squamous cell carcinoma followed by undifferentiated and Adenocarcinoma. Only five (3.93%) cases were in operable stage. Conclusion Despite the fact that lung cancer is one of the most common cancer, patients usually present late and moslty are not in operable stage. This study shows that squamous cell carcinoma is the most common histopathology in lung cancer cases.
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Affiliation(s)
- R M Karmacharya
- Department of Surgery (Cardio Thoracic and Vascular Surgery Unit), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - A K Singh
- Department of Surgery (Cardio Thoracic and Vascular Surgery Unit), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Vaidya
- Department of Surgery (Cardio Thoracic and Vascular Surgery Unit), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S M Tuladhar
- Department of Surgery (Cardio Thoracic and Vascular Surgery Unit), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - M Devbhandari
- Department of Surgery (Cardio Thoracic and Vascular Surgery Unit), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - B Lama
- Department of Surgery (Cardio Thoracic and Vascular Surgery Unit), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - B B Kharel
- Department of Surgery (Cardio Thoracic and Vascular Surgery Unit), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Basnet
- Department of Surgery (Cardio Thoracic and Vascular Surgery Unit), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
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Singh AK, Karmacharya RM, Vaidya S, Shrestha I, Siwakoti S. The Cut-off Value of Great Saphenous Vein Diameter at the Level of Femoral Condyle to Predict the Sapheno-Femoral Junction Incompetence. Kathmandu Univ Med J (KUMJ) 2022; 20:280-283. [PMID: 37042366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Background Varicose vein is one of the commonest problems that patients visit to a vascular out patient services (OPD). It causes a great deal of morbidity in today's population. Objective To see the correlation between the size of great saphenous and Saphenofemoral junction incompetence. Method From January 2019 till January 2020, 396 patients with symptomatic or clinically diagnosed varicose veins were screened for Saphenofemoral junction reflux. The diameter of the saphenous vein was measured with B-mode imaging, and reflux was quantified based on valve closure time using Doppler spectral measurements. Best saphenous vein diameter cutoff for predicting reflux was determined using receiver operating characteristics curve analysis. Result Out of 792 limbs, the Great Saphenous Venous System was involved in 452 limbs, the Short Saphenous Venous System was involved in 151 limbs and significant perforators were present in 240 limbs. Mean great Saphenous Vein diameter of diseased limb (Reflux Positive) was 5.68 mm and 4.0 mm in control group (Reflux Negative). Mean Saphenofemoral junction diameter was 8.23 mm in diseased limbs and 6.16 mm in control limbs. Receiver operating characteristics curve showed great saphenous vein diameter at femoral condyle of 4.5 mm as best cut-off value for diagnosis of sapheno femoral junction reflux. Conclusion Great Saphenous Vein diameter at femoral condyle of 4.5 mm is the best cut-off value for diagnosis Saphenofemoral junction reflux. The Sensitivity and specificity of this cut off value is 81.8% and 71% respectively.
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Affiliation(s)
- A K Singh
- National Consultant, WHO, Kathmandu, Nepal
| | - R M Karmacharya
- Department of Department of General Surgery (CTVS Unit), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - S Vaidya
- Department of Department of General Surgery (CTVS Unit), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - I Shrestha
- Department of Department of General Surgery (CTVS Unit), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - S Siwakoti
- Department of Department of General Surgery (CTVS Unit), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
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Karmacharya RM, Singh A, Devbhandari M, Napit D, Ghimire K, Mahat C, Vaidya S. Solving the Mystery of Giant Intrathoracic Mass. Kathmandu Univ Med J (KUMJ) 2022; 20:396-398. [PMID: 37042387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Intrathoracic schwannoma are highly vascular nerve sheath benign tumors arising from neural crest derived schwann cells of the intercostal nerves. Common clinical presentation is palpable mass but in our case patient presented with shortness of breath which is rare presentation in Schwannoma. Imaging studies of the patient showed the lesion in left lung, however surgical finding showed mass to arise from chest wall and it was confirmed to be schwannoma by histopathological examination.
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Affiliation(s)
- R M Karmacharya
- Department of Surgery (CardioThoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhek, Kavre, Nepal
| | - A Singh
- Department of Surgery (CardioThoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhek, Kavre, Nepal
| | - M Devbhandari
- Department of Surgery (CardioThoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhek, Kavre, Nepal
| | - D Napit
- Department of Surgery (CardioThoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhek, Kavre, Nepal
| | - K Ghimire
- Department of Surgery (CardioThoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhek, Kavre, Nepal
| | - C Mahat
- Department of Surgery (CardioThoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhek, Kavre, Nepal
| | - S Vaidya
- Department of Surgery (CardioThoracic and Vascular), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhek, Kavre, Nepal
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Dahal S, Karmacharya RM, Vaidya S, Gautam K, Bhatt S, Bhandari N. A rare case of persistent lateral marginal vein of Servelle in Klippel Trenaunay Syndrome: A successful surgical management. Int J Surg Case Rep 2022; 94:107052. [PMID: 35405516 PMCID: PMC9006318 DOI: 10.1016/j.ijscr.2022.107052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/04/2022] [Accepted: 04/05/2022] [Indexed: 01/19/2023] Open
Abstract
Introduction and importance Klippel-Trenaunay Syndrome (KTS) is a rare congenital vascular disorder characterized by capillary malformation, varicosities, and tissue overgrowth. It usually affects the unilateral lower extremities manifesting commonly as pain, localized rise of temperature, and venous tortuosity. However, in severe cases, ulceration, cellulitis, and chronic lymphatic malformation may be present. Management is mostly supportive and involves the use of compression stockings. Case presentation Here, we report a case of KTS with a persistent lateral marginal vein of Servelle managed with radiofrequency ablation along with sclerotherapy of selected perforators. On a two-year follow-up, the symptoms had resolved and Doppler ultrasonography revealed resolution of the defective vein along with the absence of incompetent perforators. Clinical discussion In cases with venous malformation with the persistence of embryonic avalvular venous structures, like the lateral marginal vein of Servelle, surgical intervention is warranted especially at a younger age to reduce the risk of future thromboembolic events and recurrence. Conclusion Varicosities of the lateral marginal vein of Servelle can be managed successfully by radiofrequency ablation and adjunct sclerotherapy in selected cases. Klippel-Trenaunay Syndrome (KTS) is a congenital vascular disorder which usually affects the unilateral lower extremities. Endovenous treatment of the greater saphenous vein is gradually becoming popular in the treatment of KTS. This case is managed by radiofrequency ablation of lateral marginal vein of Servelle.
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Affiliation(s)
- S Dahal
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Nepal.
| | - R M Karmacharya
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Nepal
| | - S Vaidya
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Nepal
| | - K Gautam
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Nepal
| | - S Bhatt
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Nepal
| | - N Bhandari
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Nepal
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Kim S, Fouladian P, Afinjuomo F, Song Y, Youssef SH, Vaidya S, Garg S. Effect of plasticizers on drug-in-adhesive patches containing 5-fluorouracil. Int J Pharm 2022; 611:121316. [PMID: 34838623 DOI: 10.1016/j.ijpharm.2021.121316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/07/2021] [Accepted: 11/21/2021] [Indexed: 12/20/2022]
Abstract
Topical patches containing 5-fluorouracil (5-FU) are a feasible alternative to overcome the shortcomings of commercial cream for the treatment of non-melanoma skin cancer (NMSC). Plasticizers are a critical component of drug-in-adhesive (DIA) patches as they can significantly affect the mechanical, adhesive and drug release characteristics of the patches. Eudragit® E (EuE) is a methacrylate-based cationic copolymer capable of producing flexible and adhesive films for topical application. In this study, the effect of plasticizers on the mechanical, adhesive and 5-FU release characteristics of EuE-based patches was comprehensively evaluated. While the elongation at break (%) and adhesion of the films were significantly increased with increasing triacetin, dibutyl sebacate (DBS) and triethyl citrate (TEC) concentrations, the tensile strength showed an inverse relationship. EuE plasticized with 40% triacetin, 30% DBS or 40% w/w TEC produced elastic and adhesive films most suitable for topical application. In vitro release studies of the 5-FU-loaded patches demonstrated an initial burst release pattern during the first 10 min followed by a slow release over 120 min. In summary, this study provides important information on effect of plasticizers for preparation of EuE-based patches with desired mechanical, adhesive and release characteristics of 5-FU towards their potential application in the treatment of NMSC.
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Affiliation(s)
- Sangseo Kim
- Pharmaceutical Innovation and Development Group (PIDG), Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Paris Fouladian
- Pharmaceutical Innovation and Development Group (PIDG), Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Franklin Afinjuomo
- Pharmaceutical Innovation and Development Group (PIDG), Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Yunmei Song
- Pharmaceutical Innovation and Development Group (PIDG), Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Souha H Youssef
- Pharmaceutical Innovation and Development Group (PIDG), Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Sachin Vaidya
- Central Adelaide Local Health Network, The Queen Elizabeth Hospital, Woodville, SA 5011, Australia
| | - Sanjay Garg
- Pharmaceutical Innovation and Development Group (PIDG), Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia.
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Naing P, Musameh M, Vaidya S, Broyd C, Townsend A, Ball K, Oliver K, Hiskens M, Zhang Z. Intravascular Lithotripsy Catheter Balloon for Calcified Coronary Artery Intervention for the First 10 Cases at Mackay Base Hospital. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vaidya S, Karmacharya RM, Shrestha B, Adhikari MM, Sharma R, Khadka S, Bhandari N, Hada G. Comparative Study between the Use of Pigtail Catheters and Traditional Chest Tube Drain in Cases with Pneumothorax. Kathmandu Univ Med J (KUMJ) 2022; 20:24-28. [PMID: 36273286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Background Pneumothorax is a condition in which air or other gas is present in the pleural cavity. Mainstay of management of pneumothorax is to remove the air from the pleural space usually done by chest tube insertion. There is still uncertainty whether minimal invasive management with pigtail catheter is sufficient for the management of pneumothorax. Objective To find the effectiveness, safety, tolerability, efficacy of pigtail catheters and large bore chest tubes. Method Prospective comparative study was done in Dhulikhel Hospital between August 2019 till August 2021. Chest tube insertion used to be the only available treatment modality till December 2020 (15 months). Following January 2021 after obtaining ethical clearance for use of pigtail insertion for pneumothorax, this treatment modality was done (8 months). Result Among 76 patients, 52(68.4%) underwent a large bore chest tube and 24 (34.6%) pigtail catheter patients. Mean age of the patients was 48 years (SD 18.01). Duration of hospital stay and length of hospital stay was more in large bore catheters and less in pigtail catheters. Eight hours post tube placement of the expansion of the lungs was present in pigtail and was statistically significant. Pain killer used in pigtail catheters was limited to Non-steroidal anti-inflammatory drugs, for large bore catheter opioids were added and were statistically significant. Conclusion Pigtail catheter is nearly effective as compared to traditional wide bore catheters.
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Affiliation(s)
- S Vaidya
- Department of Surgery, Cardio Thoracic and Vascular Surgery Unit, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - R M Karmacharya
- Department of Surgery, Cardio Thoracic and Vascular Surgery Unit, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - B Shrestha
- Department of Surgery, Cardio Thoracic and Vascular Surgery Unit, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - M M Adhikari
- Department of Surgery, Cardio Thoracic and Vascular Surgery Unit, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - R Sharma
- Department of Surgery, Cardio Thoracic and Vascular Surgery Unit, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - S Khadka
- Department of Surgery, Cardio Thoracic and Vascular Surgery Unit, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - N Bhandari
- Department of Surgery, Cardio Thoracic and Vascular Surgery Unit, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - G Hada
- Department of Surgery, Cardio Thoracic and Vascular Surgery Unit, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
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Cerjan A, Jörg C, Vaidya S, Augustine S, Benalcazar WA, Hsu CW, von Freymann G, Rechtsman MC. Observation of bound states in the continuum embedded in symmetry bandgaps. Sci Adv 2021; 7:eabk1117. [PMID: 34936454 PMCID: PMC8694597 DOI: 10.1126/sciadv.abk1117] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In the past decade, symmetry-protected bound states in the continuum (BICs) have proven to be an important design principle for creating and enhancing devices reliant upon states with high-quality (Q) factors, such as sensors, lasers, and those for harmonic generation. However, as we show, current implementations of symmetry-protected BICs in photonic crystal slabs can only be found at the center of the Brillouin zone and below the Bragg diffraction limit, which fundamentally restricts their use to single-frequency applications. By microprinting a three-dimensional (3D) photonic crystal structure using two-photon polymerization, we demonstrate that this limitation can be overcome by altering the radiative environment surrounding the slab to be a 3D photonic crystal. This allows for the protection of a line of BICs by embedding it in a symmetry bandgap of the crystal. This concept substantially expands the design freedom available for developing next-generation devices with high-Q states.
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Affiliation(s)
- Alexander Cerjan
- Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, NM 87185, USA
- Corresponding author. (A.C.); (C.J.)
| | - Christina Jörg
- Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA
- Corresponding author. (A.C.); (C.J.)
| | - Sachin Vaidya
- Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Shyam Augustine
- Physics Department and Research Center OPTIMAS, University of Kaiserslautern, D-67663 Kaiserslautern, Germany
| | - Wladimir A. Benalcazar
- Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Chia Wei Hsu
- Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Georg von Freymann
- Physics Department and Research Center OPTIMAS, University of Kaiserslautern, D-67663 Kaiserslautern, Germany
- Fraunhofer Institute for Industrial Mathematics ITWM, 67663, Kaiserslautern, Germany
| | - Mikael C. Rechtsman
- Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA
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Saleem R, Vaidya S. A Case of Eccrine Mucinous Carcinoma Involving Scalp. Cureus 2021; 13:e16469. [PMID: 34430089 PMCID: PMC8372668 DOI: 10.7759/cureus.16469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2021] [Indexed: 11/21/2022] Open
Abstract
The report presents a case of a 67-year-old female with a long-standing lump on the scalp. After its excision the histopathology revealed consistency with eccrine mucinous carcinoma. These neoplasms are quite rare with only around 100 cases reported since 1951. The report concludes the importance of encouraging follow-up of cutaneous lesions among patients as well as ongoing research to better identify and manage the tumor.
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Affiliation(s)
- Ramsha Saleem
- Dermatology, The Queen Elizabeth Hospital, Adelaide, AUS
| | - Sachin Vaidya
- Dermatology, The Queen Elizabeth Hospital, Adelaide, AUS
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Vaidya S, Benalcazar WA, Cerjan A, Rechtsman MC. Point-Defect-Localized Bound States in the Continuum in Photonic Crystals and Structured Fibers. Phys Rev Lett 2021; 127:023605. [PMID: 34296895 DOI: 10.1103/physrevlett.127.023605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
We show that point defects in two-dimensional photonic crystals can support bound states in the continuum (BICs). The mechanism of confinement is a symmetry mismatch between the defect mode and the Bloch modes of the photonic crystal. These BICs occur in the absence of band gaps and therefore provide an alternative mechanism to confine light. Furthermore, we show that such BICs can propagate in a fiber geometry and exhibit arbitrarily small group velocity which could serve as a platform for enhancing nonlinear effects and light-matter interactions in structured fibers.
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Affiliation(s)
- Sachin Vaidya
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Wladimir A Benalcazar
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Alexander Cerjan
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Sandia National Laboratories, Albuquerque, New Mexico 87123, USA
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque 87123, New Mexico, USA
| | - Mikael C Rechtsman
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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Vaidya S, Karmacharya RM, Singh AK, Vaidya PR, Malinowski M, Dhakal A. C-ARM Guided Angiogram/Angioplasty for Selected Failed Arterio Venous Fistula. A Report of a Procedure at University Hospital of Nepal. Kathmandu Univ Med J (KUMJ) 2021; 19:399-401. [PMID: 36254434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
End Stage Renal Disease is a last stage of Chronic Kidney Disease which is characterized by Glomerular Filtration rate of less than 15 ml/min/1.73 m2 . Hemodialysis is the most commonly used modality for treatment of Chronic Kidney disease. Among the access for hemodialysis arteriovenous fistula is the most common modality. However most common problems of fistula are significant stenosis of more than 50% which is characterized by limb swelling, pigmentation, tortuous veins, and difficulty maintaining flow during dialysis from AV fistula. These can be managed either by minimal intervention or with surgical intervention. Very few hospitals in Nepal and other countries have an angiographic suite to perform minimal intervention include angiogram with angioplasty. So in this case we try to address the use of C-Arm to perform angiogram or fistulogram and even angioplasty for the management of significant stenosis or complications of arteriovenous fistula.
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Affiliation(s)
- S Vaidya
- Department of Surgery (Cardio Thoracic and Vascular Surgery), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - R M Karmacharya
- Department of Surgery (Cardio Thoracic and Vascular Surgery), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - A K Singh
- Department of Surgery (Cardio Thoracic and Vascular Surgery), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - P R Vaidya
- Consultant (Cardio and Vascular Surgery), KIST Medical College Teaching Hospital, Gwarko, Lalitpur
| | - M Malinowski
- Consultant (Medical College of Wisconsin), Wisconsin, USA
| | - A Dhakal
- Department of Surgery (Cardio Thoracic and Vascular Surgery), Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
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Abstract
Many classes of drugs are known to cause a photosensitive reaction, including anti-bacterial, anti-inflammatory, and nonsteroidal drugs. Pirfenidone is an anti-inflammatory drug that is used to treat idiopathic pulmonary fibrosis (IPF). We report a case of a patient who developed a photosensitive rash secondary to pirfenidone use, which resolved after discontinuing administration of the drug.
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Affiliation(s)
| | - Sachin Vaidya
- Medicine, The Queen Elizabeth Hospital, Woodville South, AUS
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Jackson T, Shin D, Ingraham C, Vaidya S, Monroe E, Johnson G, Valji K, Chick J. Abstract No. 56 Double-barrel brachiocephalocaval Viabahn VBX stent-graft reconstruction for treatment of superior vena cava syndrome. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Vaidya S, Noh J, Cerjan A, Jörg C, von Freymann G, Rechtsman MC. Observation of a Charge-2 Photonic Weyl Point in the Infrared. Phys Rev Lett 2020; 125:253902. [PMID: 33416372 DOI: 10.1103/physrevlett.125.253902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 10/27/2020] [Accepted: 11/09/2020] [Indexed: 06/12/2023]
Abstract
Weyl points are robust point degeneracies in the band structure of a periodic material, which act as monopoles of Berry curvature. They have been at the forefront of research in three-dimensional topological materials as they are associated with novel behavior both in the bulk and on the surface. Here, we present the experimental observation of a charge-2 photonic Weyl point in a low-index-contrast photonic crystal fabricated by two-photon polymerization. The reflection spectrum obtained via Fourier-transform infrared spectroscopy closely matches simulations and shows two bands with quadratic dispersion around a point degeneracy.
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Affiliation(s)
- Sachin Vaidya
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Jiho Noh
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Alexander Cerjan
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Christina Jörg
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
- Physics Department and Research Center OPTIMAS, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Georg von Freymann
- Physics Department and Research Center OPTIMAS, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany
- Fraunhofer Institute for Industrial Mathematics ITWM, 67663 Kaiserslautern, Germany
| | - Mikael C Rechtsman
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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Ghimire M, Vaidya S, Upadhyay HP. Clinico-pathological Profile of Kidney Biopsy Patients in a Tertiary Hospital of Central Nepal. Kathmandu Univ Med J (KUMJ) 2020; 18:217-222. [PMID: 34158426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Background Kidney biopsy is an important diagnostic tool in Nephrology. As of now, we don't have a central kidney biopsy registry in our country and there are many studies showing heterogeneous patterns of pathologies observed in the country. We thought of looking on the clinico-pathological profile of kidney biopsy patients prevailing in our centre. Objective This study was carried out with an objective to know the clinico-pathological profile of kidney biopsy patients prevailing in our centre. Method This was a hospital based, prospective, observational study carried out in a tertiary teaching hospital of Chitwan over a period of 3 years from May 2016 to April 2019. All the consecutive kidney biopsy patients were included in the study. The indication of kidney biopsies were the standard indication based on clinical presentation and investigations. The patient`s demographic profile, indication of kidney biopsy and histological patterns were studied and analysed using appropriate statistical tools. Result A total of 210 kidney biopsies were analysed over a period of three years, that makes around 5-6 biopsies per month. The mean age of the patient was 35.7 ± 14.9 years. Male were 106 (50.5) and females were 104 (49.5) with male to female ratio of 1.01. The average number of glomeruli was 23.4 ± 11.0. The commonest indication of kidney biopsy and histological pattern were nephrotic syndrome 56 (26.7) and IgA nephropathy 51 (24.2) respectively. Among nephrotic syndrome group, the commonest histological pattern was minimal change disease 21 (37.5). Non-diabetic kidney diseases in diabetes were seen in eight (53.4) diabetic patients making it a significant problem in diabetes and the commonest histological pattern in them were minimal change disease and idiopathic cresentic glomerulonephritis two (13.3) each. Conclusion The commonest indication and histological pattern of the kidney biopsy were nephrotic syndrome 56 (26.7), and IgA Nephropathy 51 (24.2) respectively. Nondiabetic kidney diseases in diabetes were seen in eight (53.4) of the diabetic patient making it a significant problem in diabetes and the commonest histological pattern in them were minimal change disease and idiopathic cresentic glomerulonephritis two (13.3) each.
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Affiliation(s)
- M Ghimire
- Department of Nephrology, College of Medical Sciences Teaching Hospital, Bharatpur, Nepal
| | - S Vaidya
- Department of Nephrology, College of Medical Sciences Teaching Hospital, Bharatpur, Nepal
| | - H P Upadhyay
- Department of Community Medicine, College of Medical Sciences Teaching Hospital, Bharatpur, Nepal
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P P, Karmacharya R, Vaidya S, Singh A, Thapa P, Dhakal P, Dahal S, Bade S, Bhandari N. Case report of eventration of diaphragm due to an unknown febrile illness causing phrenic nerve palsy and other multiple nerve palsies. Ann Med Surg (Lond) 2020; 54:74-78. [PMID: 32382413 PMCID: PMC7201156 DOI: 10.1016/j.amsu.2020.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/03/2020] [Accepted: 04/10/2020] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Diaphragmatic eventration can be congenital or acquired. Diagnosis is delayed due to no symptoms or very mild ones and is generally done by imaging modalities. This condition is managed by plication of the affected part of diaphragm by various surgical approaches. PRESENTATION OF CASE A forty seven years lady presented with one year long history of abdominal pain, bloating and fullness after meals who was being treated in line of peptic acid disorder. She had developed bilateral foot drop after typhoid fever at seventeen years of age. Clinical examination and imaging with chest x-ray, chest ultrasound and computed tomography scan suggested eventration of left hemidiaphragm. Plication of eventration of left hemidiaphragm was done via mini thoracotomy of the left thorax. There were no postoperative complications and she was discharged on the sixth postoperative day. DISCUSSION Acquired eventration of diaphragm is commonly due to traumatic phrenic nerve palsy but rarely can be associated with a history of infection causing nerve palsies. Thoracic ultrasound is an emerging modality for diagnosis supporting X-rays and CT Scans. Plication of eventration with minimally invasive techniques has less number of hospital stay and less pain compared to open approaches. CONCLUSION Non-traumatic diaphragmatic eventration due to acquired phrenic nerve palsy following an unknown febrile illness is a rare case to be reported in Nepal. The aim of treatment is expansion of intra-thoracic space which is done by plication of the diaphragm.
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Affiliation(s)
- Pradhan P
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
| | - R.M. Karmacharya
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
| | - S Vaidya
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
| | - A.K. Singh
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
| | - P Thapa
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
| | - P Dhakal
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
| | - S Dahal
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
| | - S Bade
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
| | - N Bhandari
- Department of Emergency Medicine, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Nepal
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Tran AK, Vaidya S. Treatment of refractory vitiligo with the 308‐nm excimer lamp – An Australian prospective analysis of clinical efficacy and safety. Australas J Dermatol 2020; 61:289-291. [DOI: 10.1111/ajd.13259] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/20/2020] [Accepted: 01/27/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Alain Khoi Tran
- Flinders Medical Centre Queen Elizabeth Hospital Adelaide South Australia, Australia
| | - Sachin Vaidya
- Department of Dermatology Queen Elizabeth Hospital Adelaide South Australia Australia
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Ghimire M, Vaidya S, Upadhyay HP. Clinicodemographic Profile and Outcome of Maintenance Hemodialysis Patients in a Tertiary Hospital of Central Nepal, Chitwan. Kathmandu Univ Med J (KUMJ) 2020; 18:9-14. [PMID: 33582680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Background Maintenance hemodialysis is a popular treatment modality of renal replacement therapy for end stage renal disease patients; however their mortality seemed to be rising in our centre. There were no previous studies regarding the clinicodemographic profile and outcome of maintenance hemodialysis patients from this region. Objective This study was carried out with an objective to know the clinicodemographic profile and outcome of maintenance hemodialysis patients in our centre. Method This study was a hospital based prospective observational study carried out over a period of three year, from May 2016 to April 2019, in the hemodialysis unit of the department of nephrology. All the consecutive end stage renal disease patients on maintenance hemodialysis were included in the study. The patient's demographic profile and outcome were studied and analysed using appropriate statistical tools. Result A total of 156 patients were enrolled in the study. Males were 96(61.5%) and females were 60(38.5%). The mean age of the patient was 52.2±15.6 years. The commonest causes of end stage renal disease and reasons for admission were Type 2 diabetes mellitus 68(43.6%) and volume overload with heart failure 101(64.7%) respectively. At the end of three years, 39(25%) were expired, 14(8.9%) were transferred to other centre and four (2.6%) underwent kidney transplantation. The average duration of hemodialysis was 20.3± 17.5 months. Majority of the patients 154(98.7%) had repeat admission ranging from 1 time 21(13.5%) to 10 times two (1.3%). There was a significant association between age ≥ 40 years and diabetes with mortality (p value < 0.003 and < 0.028 respectively). Conclusion The commonest cause of end stage renal disease and the reason of admission were Type 2 diabetes mellitus 68 (43.6%) and volume overload with heart failure 101 (64.7%) respectively. The overall mortality was 39 (25%) and the commonest cause of mortality was sepsis/health care associated pneumonia 30 (76.9%). There was significant association between age ≥ 40 years and diabetes with mortality (p value < 0.003 and < 0.028 respectively).
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Affiliation(s)
- M Ghimire
- Department of Nephrology, College of Medical Sciences Teaching Hospital, Bharatpur, Nepal
| | - S Vaidya
- Department of Nephrology, College of Medical Sciences Teaching Hospital, Bharatpur, Nepal
| | - H P Upadhyay
- Department of Community Medicine, College of Medical Sciences Teaching Hospital, Bharatpur, Nepal
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Moreno L, Moroz V, Owens C, Valteau-Couanet D, Gambart M, Castel V, van Eijkelenburg N, Castellano A, Nysom K, Gerber N, Laureys G, Ladenstein R, Thebaud E, Murphy D, Morland B, Vaidya S, Elliott M, Pearson A, Wheatley K. Bevacizumab for children with relapsed & refractory high-risk neuroblastoma (RR-HRNB): Results of the BEACON-neuroblastoma randomized phase II trial - A European ITCC-SIOPEN trial. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz394.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hossain MA, Vaidya S, Acharya M, Joshi D, Sunny SA, Khan OS. Atypical Location of an Atrial Myxoma: A Case Report. Mymensingh Med J 2019; 28:705-707. [PMID: 31391449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Here, we report a case of a right atrial myxoma attached to the lateral wall, which is seen in only 10% cases, impinging upon the tricuspid valve. A 57 year old male normotensive, non-diabetic, nonsmoker patient was presented to us on 5th of August 2018 with the complaints of cough, dyspnea and orthopnea for the last two years. This type of presentation is very rare. After excision of myxoma, there was a significant improvement in the signs and symptoms of the patient. In this report, we emphasize the rarity of myxoma in the Right Atrium, and its difficulty in diagnosis because of its uncommon location and atypical presentation, surgical management has shown to quickly alleviate the majority of symptom and expectant sequeale.
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Affiliation(s)
- M A Hossain
- Dr Md Aslam Hossain, Associate Professor, Department of Cardio Vascular and Thoracic Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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Triolo TM, Fouts A, Pyle L, Yu L, Gottlieb PA, Steck AK, Greenbaum CJ, Atkinson M, Baidal D, Battaglia M, Becker D, Bingley P, Bosi E, Buckner J, Clements M, Colman P, DiMeglio L, Gitelman S, Goland R, Gottlieb P, Herold K, Knip M, Krischer J, Lernmark A, Moore W, Moran A, Muir A, Palmer J, Peakman M, Philipson L, Raskin P, Redondo M, Rodriguez H, Russell W, Spain L, Schatz D, Sosenko J, Wentworth J, Wherrett D, Wilson D, Winter W, Ziegler A, Anderson M, Antinozzi P, Benoist C, Blum J, Bourcier K, Chase P, Clare-Salzler M, Clynes R, Eisenbarth G, Fathman C, Grave G, Hering B, Insel R, Kaufman F, Kay T, Leschek E, Mahon J, Marks J, Nanto-Salonen K, Nepom G, Orban T, Parkman R, Pescovitz M, Peyman J, Pugliese A, Roep B, Roncarolo M, Savage P, Simell O, Sherwin R, Siegelman M, Skyler J, Steck A, Thomas J, Trucco M, Wagner J, Krischer JP, Leschek E, Rafkin L, Bourcier K, Cowie C, Foulkes M, Insel R, Krause-Steinrauf H, Lachin JM, Malozowski S, Peyman J, Ridge J, Savage P, Skyler JS, Zafonte SJ, Rafkin L, Sosenko JM, Kenyon NS, Santiago I, Krischer JP, Bundy B, Abbondondolo M, Dixit S, Pasha M, King K, Adcock H, Atterberry L, Fox K, Englert N, Mauras J, Permuy K, Sikes T, Adams T, Berhe B, Guendling L, McLennan L, Paganessi C, Murphy M, Draznin M, Kamboj S, Sheppard V, Lewis L, Coates W, Amado D, Moore G, Babar J, Bedard D, Brenson-Hughes J, Cernich M, Clements R, Duprau S, Goodman L, Hester L, Huerta-Saenz A, Asif I, Karmazin T, Letjen S, Raman D, Morin W, Bestermann E, Morawski J, White A, Brockmyer R, Bays S, Campbell A, Boonstra M, Stapleton N, Stone A, Donoho H, Everett H, Hensley M, Johnson C, Marshall N, Skirvin P, Taylor R, Williams L, Burroughs C, Ray C, Wolverton D, Nickels C, Dothard P, Speiser M, Pellizzari L, Bokor K, Izuora S, Abdelnour P, Cummings S, Cuthbertson D, Paynor M, Leahy M, Riedl S, Shockley R, Saad T, Briones S, Casella C, Herz K, Walsh J, Greening F, Deemer M, Hay S, Hunt N, Sikotra L, Simons D, Karounos R, Oremus L, Dye L, Myers D, Ballard W, Miers R, Eberhard C, Sparks K, Thraikill K, Edwards J, Fowlkes S, Kemp A, Morales L, Holland L, Johnson P, Paul A, Ghatak K, Fiske S, Phelen H, Leyland T, Henderson D, Brenner E, Oppenheimer I, Mamkin C, Moniz C, Clarson M, Lovell A, Peters V, Ford J, Ruelas D, Borut D, Burt M, Jordan S, Castilla P, Flores M, Ruiz L, Hanson J, Green-Blair R, Sheridan K, Garmeson J, Wintergerst G, Pierce A, Omoruyi M, Foster S, Kingery A, Lunsford I, Cervantes T, Parker P, Price J, Urben I, Guillette H, Doughty H, Haydock V, Parker P, Bergman S, Duncum C, Rodda A, Perelman R, Calendo C, Barrera E, Arce-Nunez Y, Geyer S, Martinez M, De la Portilla I, Cardenas L, Garrido M, Villar R, Lorini E, Calandra G, D’Annuzio K, Perri N, Minuto C, Hays B, Rebora R, Callegari O, Ali J, Kramer B, Auble S, Cabrera P, Donohoue R, Fiallo-Scharer M, Hessner P, Wolfgram A, Henderson C, Kansra N, Bettin R, McCuller A, Miller S, Accacha J, Corrigan E, Fiore R, Levine T, Mahoney C, Polychronakos V, Henry M, Gagne H, Starkman M, Fox D, Chin F, Melchionne L, Silverman I, Marshall L, Cerracchio J, Cruz A, Viswanathan J, Heyman K, Wilson S, Chalew S, Valley S, Layburn A, Lala P, Clesi M, Genet G, Uwaifo A, Charron T, Allerton W, Hsiao B, Cefalu L, Melendez-Ramirez R, Richards C, Alleyn E, Gustafson M, Lizanna J, Wahlen S, Aleiwe M, Hansen H, Wahlen C, Karges C, Levy A, Bonaccorso R, Rapaport Y, Tomer D, Chia M, Goldis L, Iazzetti M, Klein C, Levister L, Waldman E, Keaton N, Wallach M, Regelmann Z, Antal M, Aranda C, Reynholds A, Vinik P, Barlow M, Bourcier M, Nevoret J, Couper S, Kinderman A, Beresford N, Thalagne H, Roper J, Gibbons J, Hill S, Balleaut C, Brennan J, Ellis-Gage L, Fear T, Gray L, Law P, Jones C, McNerney L, Pointer N, Price K, Few D, Tomlinson N, Leech D, Wake C, Owens M, Burns J, Leinbach A, Wotherspoon A, Murray K, Short G, Curry S, Kelsey J, Lawson J, Porter S, Stevens E, Thomson S, Winship L, Liu S, Wynn E, Wiltshire J, Krebs P, Cresswell H, Faherty C, Ross L, Denvir J, Drew T, 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Manning G, Hendry B, Taylor S, Jones W, Strader M, Bencomo T, Bailey L, Bedolla C, Roldan C, Moudiotis B, Vaidya C, Anning S, Bunce S, Estcourt E, Folland E, Gordon C, Harrill J, Ireland J, Piper L, Scaife K, Sutton S, Wilkins M, Costelloe J, Palmer L, Casas C, Miller M, Burgard C, Erickson J, Hallanger-Johnson P, Clark W, Taylor A, Lafferty S, Gillett C, Nolan M, Pathak L, Sondrol T, Hjelle S, Hafner J, Kotrba R, Hendrickson A, Cemeroglu T, Symington M, Daniel Y, Appiagyei-Dankah D, Postellon M, Racine L, Kleis K, Barnes S, Godwin H, McCullough K, Shaheen G, Buck L, Noel M, Warren S, Weber S, Parker I, Gillespie B, Nelson C, Frost J, Amrhein E, Moreland A, Hayes J, Peggram J, Aisenberg M, Riordan J, Zasa E, Cummings K, Scott T, Pinto A, Mokashi K, McAssey E, Helden P, Hammond L, Dinning S, Rahman S, Ray C, Dimicri S, Guppy H, Nielsen C, Vogel C, Ariza L, Morales Y, Chang R, Gabbay L, Ambrocio L, Manley R, Nemery W, Charlton P, Smith L, Kerr B, Steindel-Kopp M, Alamaguer D, Liljenquist G, Browning T, Coughenour M, Sulk E, Tsalikan M, Tansey J, Cabbage N. Identical and Nonidentical Twins: Risk and Factors Involved in Development of Islet Autoimmunity and Type 1 Diabetes. Diabetes Care 2019; 42:192-199. [PMID: 30061316 PMCID: PMC6341285 DOI: 10.2337/dc18-0288] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/28/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE There are variable reports of risk of concordance for progression to islet autoantibodies and type 1 diabetes in identical twins after one twin is diagnosed. We examined development of positive autoantibodies and type 1 diabetes and the effects of genetic factors and common environment on autoantibody positivity in identical twins, nonidentical twins, and full siblings. RESEARCH DESIGN AND METHODS Subjects from the TrialNet Pathway to Prevention Study (N = 48,026) were screened from 2004 to 2015 for islet autoantibodies (GAD antibody [GADA], insulinoma-associated antigen 2 [IA-2A], and autoantibodies against insulin [IAA]). Of these subjects, 17,226 (157 identical twins, 283 nonidentical twins, and 16,786 full siblings) were followed for autoantibody positivity or type 1 diabetes for a median of 2.1 years. RESULTS At screening, identical twins were more likely to have positive GADA, IA-2A, and IAA than nonidentical twins or full siblings (all P < 0.0001). Younger age, male sex, and genetic factors were significant factors for expression of IA-2A, IAA, one or more positive autoantibodies, and two or more positive autoantibodies (all P ≤ 0.03). Initially autoantibody-positive identical twins had a 69% risk of diabetes by 3 years compared with 1.5% for initially autoantibody-negative identical twins. In nonidentical twins, type 1 diabetes risk by 3 years was 72% for initially multiple autoantibody-positive, 13% for single autoantibody-positive, and 0% for initially autoantibody-negative nonidentical twins. Full siblings had a 3-year type 1 diabetes risk of 47% for multiple autoantibody-positive, 12% for single autoantibody-positive, and 0.5% for initially autoantibody-negative subjects. CONCLUSIONS Risk of type 1 diabetes at 3 years is high for initially multiple and single autoantibody-positive identical twins and multiple autoantibody-positive nonidentical twins. Genetic predisposition, age, and male sex are significant risk factors for development of positive autoantibodies in twins.
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Affiliation(s)
- Taylor M. Triolo
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Alexandra Fouts
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Laura Pyle
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Liping Yu
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Peter A. Gottlieb
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Andrea K. Steck
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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Vaidya S, Gothi D, Patro M, Sah R, Kulshreshtha R. "St. Peregrine tumor" with synchronous primary renal cell carcinoma. Lung India 2019. [DOI: 10.4103/0970-2113.257704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Wu A, Vaidya S. Literature Review of Treatment Outcomes for Lichen Planus Pigmentosus, Erythema Dyschromicum Perstans, and Ashy Dermatosis. J Cutan Med Surg 2018; 22:643-645. [PMID: 30322299 DOI: 10.1177/1203475418782132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Albert Wu
- 1 Department of Dermatology, The Queen Elizabeth Hospital, Woodville, South Australia
| | - Sachin Vaidya
- 1 Department of Dermatology, The Queen Elizabeth Hospital, Woodville, South Australia
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Maharjan BR, Bhandary S, Upadhyay S, Ghimire S, Shrestha I, Joshi M, Vaidya S, Pradhan P. Developing tool and Measuring Integration Characteristics of Basic Science Curriculum to Improve Curriculum Integration. Kathmandu Univ Med J (KUMJ) 2018; 16:338-344. [PMID: 31729350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Background Integrated curriculum enhances students' learning and the retention of knowledge. At Patan Academy of Health Sciences, integrated organ system based curriculum is used with Problem Based Learning as the principle teaching learning method to foster students' learning. In addition, other approaches of integration were under taken such as integrated assessment; logical arrangement teaching learning methods (lectures and practicals); joint effort of faculty in curriculum planning and delivery; conducive environment to foster hidden curriculum. This study describes the perception of faculty and students on integration characteristics of Basic Science curriculum. Objective To measure the integration characteristics of Basic Science Curriculum. Method Tool was developed to measure integration characteristics of Basic Science Curriculum and ensure whether such planned integration has been achieved. Mixed method was used to measure the perception of the integration characteristics i) quantitatively by questionnaire survey to faculty and students ii) qualitatively by in-depth interview of students. Result Both faculty and students perceived that all the blocks in Basic Science was well integrated in the quantitative questionnaire survey. But, in the in-depth interview, students perceived integration of curriculum in organ system blocks were better integrated compared to Principle of Human Biology blocks where fundamentals of basic science disciplines were delivered. Students reflected that Problem Based Learning not only integrated Basic Science disciplines but also with clinical sciences and the social context. But, students perceived that Community Health Sciences curriculum was not so well integrated with Basic Science subjects. Conclusion Overall, this study showed that planned integration in Basic Science curriculum was successfully executed during curriculum implementation.
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Affiliation(s)
- B R Maharjan
- Department of Biochemistry, School of Medicine, Patan Academy of Health Sciences, Lagankhel-5, Lalitpur, Nepal
| | - S Bhandary
- Department of Community Health Sciences, School of Medicine, Patan Academy of Health Sciences, Lagankhel-5, Lalitpur, Nepal
| | - S Upadhyay
- Department of Community Health Sciences, School of Medicine, Patan Academy of Health Sciences, Lagankhel-5, Lalitpur, Nepal
| | - S Ghimire
- Department of Anatomy, School of Medicine, Patan Academy of Health Sciences, Lagankhel-5, Lalitpur, Nepal
| | - I Shrestha
- Department of Physiology, School of Medicine, Patan Academy of Health Sciences, Lagankhel-5, Lalitpur, Nepal
| | - M Joshi
- Department of Pharmacology, School of Medicine, Patan Academy of Health Sciences, Lagankhel-5, Lalitpur, Nepal
| | - S Vaidya
- Department of Pathology, School of Medicine, Patan Academy of Health Sciences, Lagankhel-5, Lalitpur, Nepal
| | - P Pradhan
- Department of Microbiology, School of Medicine, Patan Academy of Health Sciences, Lagankhel-5, Lalitpur, Nepal
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Lavan N, Mc Quaid D, Smyth G, Vaidya S, Saran F, Oelfke U, Mandeville H. EP-2031: Kidney motion in children and young people quantified using 4DCT deformable registration. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32340-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shiarli A, Smyth G, Carcellar F, Vaidya S, Marshall L, Zacharoulis S, Powell K, Conti L, Frost D, Saran F, Mandeville HC H. PO-0843: Outcomes of paediatric diffuse intrinsic pontine gliomas treated with hypofractionated radiotherapy. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31153-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Wagner MG, Fischer MR, Scaglione M, Linsenmaier U, Schueller G, Berger FH, Dick E, Basilico R, Stajgis M, Calli C, Vaidya S, Wirth S. Subspecialisation in Emergency Radiology: Proposal for a harmonised European curriculum. GMS J Med Educ 2017; 34:Doc61. [PMID: 29226229 PMCID: PMC5704608 DOI: 10.3205/zma001138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 04/20/2017] [Accepted: 06/07/2017] [Indexed: 06/07/2023]
Abstract
Introduction: Radiology plays a crucial role in the emergency care setting by delivering early and precise diagnoses under pressure of time, right at the beginning of patient treatment. Although there is a need for postgraduate education in emergency radiology, most of the national bodies responsible do not offer it in a uniform fashion and a general proof of qualification is missing in Europe. Therefore, the European Society of Radiology (ESR) has founded the (Sub-)Society of Emergency Radiology (ESER), prompting them to develop a European curriculum. This trend, which is currently also encouraged in many other non-radiological specialties which demand the highest professional qualifications, often lacks expertise in medical education. Goals: The goal of this article is the general description of the curricular planning process for a European postgraduate subspecialisation programme, using the example of Emergency Radiology (European Diploma in Emergency Radiology, EDER), including the utilisation of TOOLS and recommendations derived from comparable projects. Project description: The project was divided into partial steps: the timeline displayed in a GANTT chart, and tasks and responsibilities assigned in a RASCI matrix. The curriculum was iteratively developed using the KERN approach and steps were prioritised using the PARETO principle. Furthermore, the following TOOLS were used: limitations and needs assessment, SWOT analysis, formulating learning objectives and categorising them after MILLER and SCLO, and using BLOOM's taxonomy for cognitive learning objectives and operationalising them according to MAGER. Psychomotoric and affective learning objectives were assigned to CANMEDS roles, grouped by topic using CLUSTERING, and then mapped by MATRIX analysis to appropriate learning and evaluation methods. Striving for continuous improvement, the curriculum was finally embedded in curricular quality management. Results: The standardisation of the EDER access, considering the different national conditions, the minimisation of European learners' attendance phases, restricting expenses by best possible use of existing structures, respecting the requirements and retaining the support of the European umbrella society ESR, finishing the project by a specific deadline and the demands of continuous improvement were particular challenges. A curriculum with the eligibility of five years' speciality training in general radiology has evolved on schedule. The subspeciality training lasts at least one year and is divided into webinars, workshops during congresses (e.g. the annual ESR and ESER congresses) and one year practical training at the individual learner's corresponding local hospitals, which adhere to a catalogue of requirements, comparable to national educational policies. The curriculum is completed by passing a written and oral exam (diploma) and re-accreditation every five years. Conclusions: Despite complex requirements, the TOOLS utilised allowed an almost seamless, resource-minimised, professional, location-independent distributed development of a European subspeciality curriculum within one year. The definitive implementation is still due. If any deviations from the draft presented should become necessary in the future, the embedment in the curricular quality management will lead to a redirection in the right way and, furthermore, secure a continuous improvement in the best way possible.
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Affiliation(s)
- M. G. Wagner
- University Hospital, LMU Munich, Department of Radiology, Munich, Germany
| | - M. R. Fischer
- University Hospital, LMU Munich, Department of Didactics and Educational Research in Medicine, Munich, Germany
| | - M. Scaglione
- Pineta Grande Medical Center, Department of Imaging, Castel Volturno, Italy
- Dartford & Gravesham NHS Trust, Darford, United Kingdom
| | - U. Linsenmaier
- Helios Klinikum München, Department of Radiology, Munich, Germany
| | | | | | - E. Dick
- Imperial College NHS Trust, St. Mary's Campus, London, United Kingdom
| | | | | | - C. Calli
- Ege University Medical Faculty, Dept. of Radiology, Neuroradiology Section, Bornova Izmir, Turkey
| | - S. Vaidya
- Barts Health NHS Trust, Royal London Hospital, London, United Kingdom
| | - Stefan Wirth
- University Hospital, LMU Munich, Department of Radiology, Munich, Germany
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Vaidya S, Biswas M, Rai K. Traumatic Diaphragmatic Hernia: Diagnostic Dilemma. Kathmandu Univ Med J (KUMJ) 2017; 15:265-267. [PMID: 30353906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Traumatic rupture of the diaphragm is an uncommon condition. The prevalence of diaphragmatic rupture among blunt trauma victim ranges from 0.8 to 8%. The etiologic factors are blunt trauma (for example, in motor vehicle accidents) and penetrating trauma. The diagnosis is often missed because of non-specific clinical signs, and the absence of additional intra-abdominal and thoracic injuries. We present a case which was misdiagnosed as a case of left sided hemopneumothorax and treated with tube thoracotomy in other center.
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Affiliation(s)
- S Vaidya
- Department of CardioVascular and Thoracic Surgery, Banghabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
| | - M Biswas
- Department of Thoracic Surgery, National Institute of Diseases of Chest Hospital, Dhaka, Bangladesh
| | - K Rai
- Department of CardioVascular and Thoracic Surgery, Banghabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
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Stone J, Waern S, Khabra K, Wharram B, Middleton A, Edwards L, Kuhlthau K, Crouch C, Marshall L, Zacharoulis S, Vaidya S, Powell K, Saran F, Yock T, Mandeville H. Impact of toxicities and neurocognitive impairment on the health related quality of life (HR-QoL) for survivors of medulloblastoma. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30631-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Nodal status is a significant predictor for survival of patients with oral squamous cell carcinoma (SCC), sentinel lymph node (SLN) biopsy, step sectioning of SLNs, and immunohistochemistry have changed the detection of tumor deposits in lymph nodes (LNs). The extent of LN metastasis is a major determinant for the staging and the prognosis of most human malignancies and often guides therapeutic decisions. Metastasis to regional lymph node (RLN) is a complex process. It is often associated with several clinical and pathological characteristics. The involvement of RLN is often, a harbinger for increased risk of metastasis. New knowledge in this area can enable the clinicians and pathologists to study and treat tumors in a more directed fashion. A molecular approach to factors that predicts the likelihood of RLN metastasis could eliminate the reoccurrence of the tumor in the form of "micrometastasis" and "skip" metastasis. The aim of this review is to discuss different modes of spread of metastasis in SCC.
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Affiliation(s)
- C Kapoor
- Department of Oral Pathology and Microbiology, Bhojia Dental College, Budd, Baddi, Solan, Himachal Pradesh, India
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Affiliation(s)
- Amanda J Tan
- Lyell McEwin Hospital, Elizabeth Vale, South Australia, Australia
| | - Sachin Vaidya
- St Peters Dematology, Adelaide, South Australia, Australia.,Dermatology SA, Dulwich, South Australia, Australia
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Chewning R, Lindberg A, Monroe E, Vaidya S, Shivaram G. Glue embolization of pediatric non-head and neck venous malformations. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Breen DP, Deeb J, Vaidya S, Lockwood DN, Radunovic A. Leprosy: a 'common' and curable cause of peripheral neuropathy with skin lesions. J R Coll Physicians Edinb 2015; 45:38-42. [PMID: 25874829 DOI: 10.4997/jrcpe.2015.109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Leprosy (or Hansen's disease) is a curable chronic infectious disease caused by the acid-fast bacillus Mycobacterium leprae. While leprosy remains one of the most common causes of neuropathy worldwide, its rarity in the UK means that many doctors are unfamiliar with the typical clinical features. This is problematic because early recognition and treatment is vital in order to minimise disease-related complications such as nerve injury. We describe a 75-year-old man who presented with multiple mononeuropathy (mononeuritis multiplex, particularly affecting the ulnar nerves) and typical granulomatous skin lesions, in whom the diagnosis was made on the basis of skin biopsy. We highlight the clinical features, investigations and treatment of the patient, and provide information about the epidemiology and pathogenesis of leprosy.
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Affiliation(s)
- D P Breen
- DP Breen, National Hospital for Neurology and Neurosurgery, 33 Queen Square, London WC1N 3BG, UK. Email
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Abstract
Background: A spectrum of primary and secondary disorders that affect the bone marrow may manifestwith pancytopenia. This study was carried out to identify the various causes of pancytopenia in patients attending a tertiary care hospital in Lalitpur, Nepal.Materials and Methods: A descriptive study of 83 cases of pancytopenia was carried out in the Department of Pathology, Patan Academy of Health Sciences, Lalitpur, Nepal over a two year period from August 2010 to July 2012.Results: Eighty three patients underwent bone marrow examination. Mean age of the patients was 34 years (range: 4 to 75 years). Maximum number of patients (31.33%) was seen in the age group of 16 - 30 years. The commonest cause of pancytopenia was megaloblastic anemia which was seen in 34.94% (29/83) cases followed by aplastic anemia and hematological malignancies in 31.32% (26/83) and 14.46% (12/83) cases, respectively.Conclusion: This study concluded that megaloblastic anemia and aplastic anemia were the two most common causes of pancytopenia. Bone marrow aspiration is an established diagnostic modality in the evaluation of pancytopenia.Journal of Pathology of Nepal (2015) Vol. 5, 691 - 695
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Verraich J, Shivaram G, Ghodke B, Vaidya S, Zopf D, Perkins J. Pre-operative n-butyl-2-cyanoacrylate glue embolization of pediatric head and neck venous malformations: technique and clinical outcomes. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Vaidya S, Vaidya SA. Patterns of Lesions in Hysterectomy Specimens in a Tertiary Care Hospital. JNMA J Nepal Med Assoc 2015; 53:18-23. [PMID: 26983042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
INTRODUCTION Hysterectomy is one of the most common gynaecological procedures performed all over the world. The most frequent indications for hysterectomy are fibroids, abnormal uterine bleeding uterovaginal prolapse and endometriosis. The objective of this study was to present the histopathological patterns of various uterine and adnexal pathologies in the hysterectomy specimens and also to correlate its pre-operative clinical diagnosis with histopathology. METHODS This is a two-year descriptive study of hysterectomy specimens carried out in the Department of Pathology, Patan Academy of Health Sciences (PAHS), Lalitpur, Nepal. Data of all the hysterectomy specimens collected during this period was analyzed. RESULTS Out of the 533 cases, fibroid was the most common indication for hysterectomy that was seen in 229 (42.94%) cases followed by uterovaginal prolapse in 101 (18.93%) cases. Leiomyoma was the most common pathology reported in 250 (46.90%) hysterectomy specimens, followed by ovarian tumours in 95 (17.82%) cases. In 17.82% (95/533) cases, no pathology was seen. Overall, the pre-operative indications in 533 cases of hysterectomy were histopathologically verifiable in 487 (91.37%) cases. CONCLUSIONS Though the histopathological examination correlates well with the pre-operative clinical diagnosis, a number of lesions were also encountered as pure incidental findings. Hence, it is mandatory that every hysterectomy specimen should be subjected to histopathological examination so as to ensure better post-operative management.
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Affiliation(s)
- S Vaidya
- Department of Pathology, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal
| | - S A Vaidya
- Department of Obstertrics and Gynaecology, Maternity Hospital, Thapathali, Kathmandu, Nepal
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Vundinti BR, Kerketta L, Korgaonkar S, Vaidya S, Ghosh K. Isodicentric Philadelphia [idic(Ph)] chromosome in a case of CML at chronic phase. Indian J Cancer 2014; 51:383-384. [PMID: 25494152 DOI: 10.4103/0019-509x.146749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- B R Vundinti
- Department of Cytogenetics, National Institute of Immunohaematology (ICMR), 13th Floor, New Multistoried Building, K. E. M Hospital Campus, Parel, Mumbai, Maharashtra, India
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Ahmad Z, Mobasheri R, Das T, Vaidya S, Mallik S, El-Hussainy M, Casey A. How to interpret computed tomography of the lumbar spine. Ann R Coll Surg Engl 2014; 96:502-7. [PMID: 25245727 DOI: 10.1308/rcsann.2014.96.7.502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Computed tomography (CT) of the spine has remained an important tool in the investigation of spinal pathology. This article helps to explain the basics of CT of the lumbar spine to allow the clinician better use of this diagnostic tool.
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Yang J, Chen HJ, Zhu XD, Vaidya S, Xiang Z, Fan YJ, Zhang XD. Enhanced repair of a critical-sized segmental bone defect in rabbit femur by surface microstructured porous titanium. J Mater Sci Mater Med 2014; 25:1747-1756. [PMID: 24668271 DOI: 10.1007/s10856-014-5202-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 03/19/2014] [Indexed: 06/03/2023]
Abstract
Repair of load-bearing bone defects remains a challenge in the field of orthopaedic surgery. In the current study, a surface microstructured porous titanium (STPT) successively treated with H2O2/TaCl5 solution and simulated body fluid was used to repair the critical-sized segmental bone defects in rabbit femur, and non-treated porous titanium (NTPT) and porous biphasic calcium phosphate ceramics (PBCP) were used as control, respectively. A 15 mm long implant was positioned in the femoral defect and stabilized by a plate and screws fixation. After implantation into the body for 1, 3 and 6 months, X-ray observation confirmed that porous titanium groups (NTPT and STPT) provided better mechanical support than PBCP group at the early stage. However, there was no obvious difference in the formed bony callus between PBCP and STPT groups in the later stage, and they both showed better shape of bony callus than NTPT group. Micro-CT and histomorphometric analysis for the samples of 6-month implantation demonstrated that more new bone formed in the inner pores of PBCP and STPT groups than that in NTPT group. Moreover, the biomechanical tests revealed that STPT group could bear larger compressive load than NTPT and PBCP groups, almost reaching the level of the normal rabbit femur. STPT exhibited the enhanced repairing effect on the critical-sized segmental bone defect in rabbit femur, meaning that it could be an ideal material for the repair of large bone defect in load-bearing site.
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Affiliation(s)
- J Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
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Classen CF, William D, Linnebacher M, Farhod A, Kedr W, Elsabe B, Fadel S, Van Gool S, De Vleeschouwer S, Koks C, Garg A, Ehrhardt M, Riva M, De Vleeschouwer S, Agostinis P, Graf N, Van Gool S, Yao TW, Yoshida Y, Zhang J, Ozawa T, James D, Nicolaides T, Kebudi R, Cakir FB, Gorgun O, Agaoglu FY, Darendeliler E, Van Gool S, De Vleeschouwer S, Al-Kofide A, Al-Shail E, Khafaga Y, Al-Hindi H, Dababo M, Haq AU, Anas M, Barria MG, Siddiqui K, Hassounah M, Ayas M, van Zanten SV, Jansen M, van Vuurden D, Huisman M, Vugts D, Hoekstra O, van Dongen G, Kaspers G, Cockle J, Ilett E, Scott K, Bruning-Richardson A, Picton S, Short S, Melcher A, Benesch M, Warmuth-Metz M, von Bueren AO, Hoffmann M, Pietsch T, Kortmann RD, Eyrich M, Graf N, Rutkowski S, Fruhwald MC, Faber J, Kramm C, Porkholm M, Valanne L, Lonnqvist T, Holm S, Lannering B, Riikonen P, Wojcik D, Sehested A, Clausen N, Harila-Saari A, Schomerus E, Thorarinsdottir HK, Lahteenmaki P, Arola M, Thomassen H, Saarinen-Pihkala UM, Kivivuori SM, Buczkowicz P, Hoeman C, Rakopoulos P, Pajovic S, Morrison A, Bouffet E, Bartels U, Becher O, Hawkins C, Gould TWA, Rahman CV, Smith SJ, Barrett DA, Shakesheff KM, Grundy RG, Rahman R, Barua N, Cronin D, Gill S, Lowisl S, Hochart A, Maurage CA, Rocourt N, Vinchon M, Kerdraon O, Escande F, Grill J, Pick VK, Leblond P, Burzynski G, Janicki T, Burzynski S, Marszalek A, Ramani N, Zaky W, Kannan G, Morani A, Sandberg D, Ketonen L, Maher O, Corrales-Medina F, Meador H, Khatua S, Brassesco M, Delsin L, Roberto G, Silva C, Ana L, Rego E, Scrideli C, Umezawa K, Tone L, Kim SJ, Kim CY, Kim IA, Han JH, Choi BS, Ahn HS, Choi HS, Haque F, Rahman R, Layfield R, Grundy R, Gandola L, Pecori E, Biassoni V, Schiavello E, Chiruzzi C, Spreafico F, Modena P, Bach F, Pignoli E, Massimino M, Drogosiewicz M, Dembowska-Baginska B, Jurkiewicz E, Filipek I, Perek-Polnik M, Swieszkowska E, Perek D, Bender S, Jones DT, Warnatz HJ, Hutter B, Zichner T, Gronych J, Korshunov A, Eils R, Korbel JO, Yaspo ML, Lichter P, Pfister SM, Yadavilli S, Becher OJ, Kambhampati M, Packer RJ, Nazarian J, Lechon FC, Fowkes L, Khabra K, Martin-Retortillo LM, Marshall LV, Vaidya S, Koh DM, Leach MO, Pearson AD, Zacharoulis S, Lechon FC, Fowkes L, Khabra K, Martin-Retortillo LM, Marshall LV, Schrey D, Barone G, Vaidya S, Koh DM, Pearson AD, Zacharoulis S, Panditharatna E, Stampar M, Siu A, Gordish-Dressman H, Devaney J, Kambhampati M, Hwang EI, Packer RJ, Nazarian J, Chung AH, Mittapalli RK, Elmquist WF, Becher OJ, Castel D, Debily MA, Philippe C, Truffaux N, Taylor K, Calmon R, Boddaert N, Le Dret L, Saulnier P, Lacroix L, Mackay A, Jones C, Puget S, Sainte-Rose C, Blauwblomme T, Varlet P, Grill J, Entz-Werle N, Maugard C, Bougeard G, Nguyen A, Chenard MP, Schneider A, Gaub MP, Tsoli M, Vanniasinghe A, Luk P, Dilda P, Haber M, Hogg P, Ziegler D, Simon S, Tsoli M, Vanniasinghe A, Monje M, Gurova K, Gudkov A, Haber M, Ziegler D, Zapotocky M, Churackova M, Malinova B, Zamecnik J, Kyncl M, Tichy M, Puchmajerova A, Stary J, Sumerauer D, Boult J, Vinci M, Taylor K, Perryman L, Box G, Jury A, Popov S, Ingram W, Monje M, Eccles S, Jones C, Robinson S, Emir S, Demir HA, Bayram C, Cetindag F, Kabacam GB, Fettah A, Boult J, Li J, Vinci M, Jury A, Popov S, Jamin Y, Cummings C, Eccles S, Bamber J, Sinkus R, Jones C, Robinson S, Nandhabalan M, Bjerke L, Vinci M, Burford A, Ingram W, Mackay A, von Bueren A, Baudis M, Clarke P, Collins I, Workman P, Jones C, Taylor K, Mackay A, Vinci M, Popov S, Ingram W, Entz-Werle N, Monje M, Olaciregui N, Mora J, Carcaboso A, Bullock A, Jones C, Vinci M, Mackay A, Burford A, Taylor K, Popov S, Ingram W, Monje M, Alonso M, Olaciregui N, de Torres C, Cruz O, Mora J, Carcaboso A, Jones C, Filipek I, Drogosiewicz M, Perek-Polnik M, Swieszkowska E, Dembowska-Baginska B, Jurkiewicz E, Perek D, Nguyen A, Pencreach E, Mackay A, Moussalieh FM, Guenot D, Namer I, Chenard MP, Jones C, Entz-Werle N, Pollack I, Jakacki R, Butterfield L, Hamilton R, Panigrahy A, Potter D, Connelly A, Dibridge S, Whiteside T, Okada H, Ahsan S, Raabe E, Haffner M, Warren K, Quezado M, Ballester L, Nazarian J, Eberhart C, Rodriguez F, Ramachandran C, Nair S, Quirrin KW, Khatib Z, Escalon E, Melnick S, Classen CF, Hofmann M, Schmid I, Simon T, Maass E, Russo A, Fleischhack G, Becker M, Hauch H, Sander A, Kramm C, Grasso C, Truffaux N, Berlow N, Liu L, Debily MA, Davis L, Huang E, Woo P, Tang Y, Ponnuswami A, Chen S, Huang Y, Hutt-Cabezas M, Warren K, Dret L, Meltzer P, Mao H, Quezado M, van Vuurden D, Abraham J, Fouladi M, Svalina MN, Wang N, Hawkins C, Raabe E, Hulleman E, Li XN, Keller C, Spellman PT, Pal R, Grill J, Monje M, Jansen MHA, Sewing ACP, Lagerweij T, Vuchts DJ, van Vuurden DG, Caretti V, Wesseling P, Kaspers GJL, Hulleman E, Cohen K, Raabe E, Pearl M, Kogiso M, Zhang L, Qi L, Lindsay H, Lin F, Berg S, Li XN, Muscal J, Amayiri N, Tabori U, Campbel B, Bakry D, Aronson M, Durno C, Gallinger S, Malkin D, Qaddumi I, Musharbash A, Swaidan M, Bouffet E, Hawkins C, Al-Hussaini M, Rakopoulos P, Shandilya S, McCully C, Murphy R, Akshintala S, Cole D, Macallister RP, Cruz R, Widemann B, Warren K, Salloum R, Smith A, Glaunert M, Ramkissoon A, Peterson S, Baker S, Chow L, Sandgren J, Pfeifer S, Popova S, Alafuzoff I, de Stahl TD, Pietschmann S, Kerber MJ, Zwiener I, Henke G, Kortmann RD, Muller K, von Bueren A, Sieow NYF, Hoe RHM, Tan AM, Chan MY, Soh SY, Hawkins C, Burrell K, Chornenkyy Y, Remke M, Golbourn B, Buczkowicz P, Barzczyk M, Taylor M, Rutka J, Dirks P, Zadeh G, Agnihotri S, Hashizume R, Ihara Y, Andor N, Chen X, Lerner R, Huang X, Tom M, Solomon D, Mueller S, Petritsch C, Zhang Z, Gupta N, Waldman T, James D, Dujua A, Co J, Hernandez F, Doromal D, Hegde M, Wakefield A, Brawley V, Grada Z, Byrd T, Chow K, Krebs S, Heslop H, Gottschalk S, Yvon E, Ahmed N, Truffaux N, Philippe C, Cornilleau G, Paulsson J, Andreiuolo F, Guerrini-Rousseau L, Puget S, Geoerger B, Vassal G, Ostman A, Grill J, Parsons DW, Lin F, Trevino LR, Gao F, Shen X, Hampton O, Lindsay H, Kosigo M, Qi L, Baxter PA, Su JM, Chintagumpala M, Dauser R, Adesina A, Plon SE, Li XN, Wheeler DA, Lau CC, Pietsch T, Gielen G, Muehlen AZ, Kwiecien R, Wolff J, Kramm C, Lulla RR, Laskowski J, Goldman S, Gopalakrishnan V, Fangusaro J, Mackay A, Taylor K, Vinci M, Jones C, Kieran M, Fontebasso A, Papillon-Cavanagh S, Schwartzentruber J, Nikbakht H, Gerges N, Fiset PO, Bechet D, Faury D, De Jay N, Ramkissoon L, Corcoran A, Jones D, Sturm D, Johann P, Tomita T, Goldman S, Nagib M, Bendel A, Goumnerova L, Bowers DC, Leonard JR, Rubin JB, Alden T, DiPatri A, Browd S, Leary S, Jallo G, Cohen K, Prados MD, Banerjee A, Carret AS, Ellezam B, Crevier L, Klekner A, Bognar L, Hauser P, Garami M, Myseros J, Dong Z, Siegel PM, Gump W, Ayyanar K, Ragheb J, Khatib Z, Krieger M, Kiehna E, Robison N, Harter D, Gardner S, Handler M, Foreman N, Brahma B, MacDonald T, Malkin H, Chi S, Manley P, Bandopadhayay P, Greenspan L, Ligon A, Albrecht S, Pfister SM, Ligon KL, Majewski J, Gupta N, Jabado N, Hoeman C, Cordero F, Halvorson K, Hawkins C, Becher O, Taylor I, Hutt M, Weingart M, Price A, Nazarian J, Eberhart C, Raabe E, Kantar M, Onen S, Kamer S, Turhan T, Kitis O, Ertan Y, Cetingul N, Anacak Y, Akalin T, Ersahin Y, Mason G, Nazarian J, Ho C, Devaney J, Stampar M, Kambhampati M, Crozier F, Vezina G, Packer R, Hwang E, Gilheeney S, Millard N, DeBraganca K, Khakoo Y, Kramer K, Wolden S, Donzelli M, Fischer C, Petriccione M, Dunkel I, Afzal S, Carret AS, Fleming A, Larouche V, Zelcer S, Johnston DL, Kostova M, Mpofu C, Decarie JC, Strother D, Lafay-Cousin L, Eisenstat D, Fryer C, Hukin J, Bartels U, Bouffet E, Hsu M, Lasky J, Moore T, Liau L, Davidson T, Prins R, Fouladi M, Bartels U, Warren K, Hassal T, Baugh J, Kirkendall J, Doughman R, Leach J, Jones B, Miles L, Hawkins C, Bouffet E, Hargrave D, Grill J, Jones C, Jacques T, Savage S, Goldman S, Leary S, Packer R, Saunders D, Wesseling P, Varlet P, van Vuurden D, Wallace R, Flutter B, Morgenestern D, Hargrave D, Blanco E, Howe K, Lowdell M, Samuel E, Michalski A, Anderson J, Arakawa Y, Umeda K, Watanabe KI, Mizowaki T, Hiraoka M, Hiramatsu H, Adachi S, Kunieda T, Takagi Y, Miyamoto S, Venneti S, Santi M, Felicella MM, Sullivan LM, Dolgalev I, Martinez D, Perry A, Lewis PW, Allis DC, Thompson CB, Judkins AR. HIGH GRADE GLIOMAS AND DIPG. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Background: Ovarian tumors are common forms of neoplasia in women. Among cancers of the female genital tract, it ranks only below carcinoma of the cervix and the endometrium, but is responsible for approximately 50% of the deaths. They arise from different cell lineages and hence constitute a wide variety of neoplastic entities with diverse morphological and clinical manifestations. Materials and Methods: A descriptive study of 363 cases of ovarian tumors was carried out during a three year period from January 2011 to December 2013. Results: Of the 363 ovarian tumors, 293 (80.72%) cases were benign, 57 (15.70%) were malignant and 13 (3.58%) were borderline. Germ cell tumour was the most common class of tumour and seen in 187 (51.52%) cases, followed by surface epithelial in 158 (43.53%) cases. The age distribution of the patients ranged from 10-82 years with a median age of 33 years. Benign tumors were more common than malignant ones in all age groups. Conclusion: Most of the ovarian tumors in this study were of germ cell origin. The incidence of malignant germ cell tumors was also significantly higher than in other studies. Mature cystic teratoma was the most common benign tumour while serous carcinoma was the most common malignancy. The incidence of malignant germ cell tumors was higher compared to other studies. DOI: http://dx.doi.org/10.3126/jpn.v4i7.10295 Journal of Pathology of Nepal (2014) Vol. 4, 539-543
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Vaidya S, Lakhey M, Vaidya S, Sharma PK, Hirachand S, Lama S, KC S. Histopathological pattern of abnormal uterine bleeding in endometrial biopsies. Nepal Med Coll J 2013; 15:74-77. [PMID: 24592801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Abnormal uterine bleeding is a common presenting complaint in gyanecology out patient department. Histopathological evaluation of the endometrial samples plays a significant role in the diagnosis of abnormal uterine bleeding. This study was carried out to determine the histopathological pattern of the endometrium in women of various age groups presenting with abnormal uterine bleeding. Endometrial biopsies and curettings of patients presenting with abnormal uterine bleeding was retrospectively studied. A total of 403 endometrial biopsies and curettings were analyzed. The age of the patients ranged from 18 to 70 years. Normal cyclical endometrium was seen in 165 (40.94%) cases, followed by 54 (13.40%) cases of disordered proliferative endometrium and 44 (10.92%) cases of hyperplasia. Malignancy was seen in 10 (2.48%) cases. Hyperplasia and malignancy were more common in the perimenopausal and postmenopausal age groups. Histopathological examination of endometrial biopsies and curettings in patients presenting with abnormal uterine bleeding showed a wide spectrum of changes ranging from normal endometrium to malignancy. Endometrial evaluation is specially recommended in women of perimenopausal and postmenopausal age groups presenting with AUB, to rule out a possibility of any preneoplastic condition or malignancy.
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Affiliation(s)
- S Vaidya
- Department of Pathology, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal.
| | - M Lakhey
- Department of Pathology, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal
| | - S Vaidya
- Department of Obstertrics and Gynaecology, Maternity Hospital, Thapathali, Kathmandu, Nepal
| | - P K Sharma
- Department of Obstetrics and Gynaecology, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
| | - S Hirachand
- Department of Pathology, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal
| | - S Lama
- Department of Pathology, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal
| | - S KC
- Department of Pathology, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
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