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Search Results: 1 - 10 of 14367 matches for " Sethi Harinder Singh "
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Bilateral dissociated vertical deviation in a case of congenital hereditary endothelial dystrophy
Bhola Rahul,Saxena Rohit,Sethi Harinder Singh,Sharma Pradeep
Indian Journal of Ophthalmology , 2006,
Abstract: Dissociated vertical deviation (DVD) is an intermittent anomaly of the non-fixing eye. Although association of DVD with sensory visual deprivation owing to congenital or acquired opacities of the ocular media has been reported, its association with congenital hereditary endothelial dystrophy (CHED) has not been reported hitherto. We report a case having a bilateral asymmetric DVD, in a know case of bilateral CHED.
Posterior migration of Ahmed glaucoma valve tube in a patient with Reiger anomaly: a case report
Vishnu S Gupta, Harinder S Sethi, Malvika Gupta, Anuj Mehta, Shivram Singh, Pankaj Yadav, KPS Malik
BMC Ophthalmology , 2010, DOI: 10.1186/1471-2415-10-23
Abstract: We report a young 9 year old boy, diagnosed with refractory glaucoma with Reiger anomaly. History included of poor vision in both eyes, left more than right with glare since childhood. He underwent GDI surgery with AGV implantation following which he developed posterior migration of AGV tube. The detailed ocular history, ophthalmic findings, clinical course, surgical management and development of the posterior tube migration is discussed.Posterior Migration of AGV tube has yet not been described. Also there is a role of expectant management of the complication in this case as evidenced by the benign course of events.Rieger's anomaly [1] is characterized by a dysgenesis of the anterior ocular segment with peripheral iris strands, an abnormally prominent Schwalbe's line, and a stromal atrophy of the iris. Aniridia most commonly presents with decreased vision, photophobia, nystagmus, and strabismus. Because glaucoma develops later in childhood, enlargement of the cornea is not part of the presentation. Its frequent association with refractory secondary glaucoma has been noted in more than 50% cases. This warrants an early surgical intervention, but with an uncertain prognosis. Ahmed glaucoma valve [2,3] is an established modality of management in such cases with a variable success rate of 44-90%[4-7]. Multiple early and late postoperative complications [8,9] have been reported but an anterior to posterior segment migration is yet unrecorded. We report here a case of this kind with exceptional emphasis on the role of expectant management of the same.A 9 year old child presented to the out patient services of our eye department with chief complaints of gradual, progressive loss of vision in both eyes, left more than right, over a period of two years.The patient also had primary complaint of intolerance to bright light, particularly in the right eye. His school teacher also complained of the child not taking adequate interest in class work with special obstinacy to outdoo
A Large Celiac Artery Aneurysm  [PDF]
Harinder Singh Bedi, Kamal Negi
World Journal of Cardiovascular Surgery (WJCS) , 2013, DOI: 10.4236/wjcs.2013.33019
Abstract: We report preoperative, intraoperative and postoperative images of a large celiac artery aneurysm.
The “Bedi-IMA Buttress”: Reinforcement of the Bronchial Stump with a Pedicled Internal Mammary Artery Buttress in Diabetic Patients after Lung Resection  [PDF]
Harinder Singh Bedi, Kamal Negi
World Journal of Cardiovascular Surgery (WJCS) , 2014, DOI: 10.4236/wjcs.2014.412032
Abstract: Objective: The development of a bronchopleural fistula is a devastating complication after lung resection. We describe a new method of buttressing the closure of the stump in diabetic patients using a pedicled internal mammary artery buttress flap to avoid a bronchopleural fistula. Methods: An internal mammary pedicled flap was used in 14 diabetic patients of lung resection to cover the bronchial stump. Results: The flap of viable vascularized muscle mass gave an excellent coverage of the bronchial stump. All patients recovered well with no bronchopleural fistula. Conclusions: We recommend this technique as a method of buttressing the bronchial stump in cases of lung resection, as the internal mammary artery is easily available and its use is not associated with any side effects.
Supratarsal injection of corticosteroids in the treatment of refractory vernal keratoconjunctivitis
Sethi Harinder,Wangh Vijay,Rai Harinder
Indian Journal of Ophthalmology , 2002,
Abstract:
Independent Lung Ventilation for Reexpansion Pulmonary Edema*  [PDF]
Sheetal Garg, Harinder Singh Bedi, Melchisedec Singh, Valsa Abraham
World Journal of Cardiovascular Surgery (WJCS) , 2013, DOI: 10.4236/wjcs.2013.35033
Abstract: Reexpansion pulmonary oedema (RPE) is a rare but potentially fatal complication with no clear cut guidelines for its management. When the injury to the lung is primarily one sided, conventional modes of ventilation can be ineffective and at times harmful. Selective or independent lung ventilation (ILV) is one of the therapeutic modality that can be used for the treatment of such cases. We report the successful treatment of reexpansion pulmonary oedema in 19-year-old boy using independent lung ventilation.
Implementation of nlization framework for verbs, pronouns and determiners with eugene
Harinder Singh,Parteek Kumar
Computer Science , 2013,
Abstract: UNL system is designed and implemented by a nonprofit organization, UNDL Foundation at Geneva in 1999. UNL applications are application softwares that allow end users to accomplish natural language tasks, such as translating, summarizing, retrieving or extracting information, etc. Two major web based application softwares are Interactive ANalyzer (IAN), which is a natural language analysis system. It represents natural language sentences as semantic networks in the UNL format. Other application software is dEep-to-sUrface GENErator (EUGENE), which is an open-source interactive NLizer. It generates natural language sentences out of semantic networks represented in the UNL format. In this paper, NLization framework with EUGENE is focused, while using UNL system for accomplishing the task of machine translation. In whole NLization process, EUGENE takes a UNL input and delivers an output in natural language without any human intervention. It is language-independent and has to be parametrized to the natural language input through a dictionary and a grammar, provided as separate interpretable files. In this paper, it is explained that how UNL input is syntactically and semantically analyzed with the UNL-NL T-Grammar for NLization of UNL sentences involving verbs, pronouns and determiners for Punjabi natural language.
Insertion of a foldable hydrophobic IOL through the trabeculectomy fistula in cases with Microincision cataract surgery combined with trabeculectomy
Tanuj Dada, Rajamani Muralidhar, Harinder S Sethi
BMC Ophthalmology , 2006, DOI: 10.1186/1471-2415-6-14
Abstract: After completion of MICS through two side port incisions, a 3.2 mm keratome is used to enter the anterior chamber under the previously outlined scleral flap. An Acrysof multi piece IOL (Alcon labs, Fort Worth, Tx) is inserted into the capsular bag through this incision. The scleral flap is then elevated and a 2 × 2 mm fistula made with a Kelly's punch. The scleral flap and conjunctival closure is performed as usual.Five patients with primary open angle glaucoma with a visually significant cataract underwent the above mentioned procedure. An IOL was implated in the capsular bag in all cases with no intraperative complications. After surgery, all patients obtained a best corrected visual acuity of 20/20, IOL was well centered at 4 weeks follow up. The mean IOP (without any antiglaucoma medication) was 13.2 + 2.4 mm Hg at 12 weeks with a well formed diffuse filtering bleb in all the cases.The technique of combining MICS with trabeculectomy and insertion of a foldable IOL through the trabeculectomy fistula is a feasible and valuable technique for cases which require combined cataract and glaucoma surgery.The combined surgical technique of phacotrabeculectomy has become a common technique for management of eyes with co-existent cataract and glaucoma [1,2]. Phacotrabeculectomy is either done as a single site surgery with both phacoemulsification and trabeculectomy performed from the same site or more commonly as a two-site surgery. Separating the two incisions may decrease the inflammation and subsequent fibrosis induced by the surgery leading to a better survival of the filtering bleb [2-4].Microincision cataract surgery (MICS) or Phakonit (implying phacoemulsification performed with a needle) is a recently introduced bimanual technique that permits phacoemulsification via sub 1–1.2 mm incisions. The basic principle is to separate the irrigation from the phacoemulsification handpiece and use an irrigating chopper to maintain the anterior chamber. The advantages of MICS i
Closed chamber globe stabilization and needle capsulorhexis using irrigation hand piece of bimanual irrigation and aspiration system
Harinder S Sethi, Tanuj Dada, Harminder K Rai, Prabhpreet Sethi
BMC Ophthalmology , 2005, DOI: 10.1186/1471-2415-5-21
Abstract: Two side ports are made with 20 G MVR 'V' lance knife (Alcon, USA). The irrigation handpiece with irrigation on is introduced into the anterior chamber through one side port and the 26-G cystitome (made from 26-G needle) is introduced through the other. The capsolurhexis is completed with the needle.Needle capsulorhexis with this technique was used in 30 cases of uncomplicated immature senile cataracts. 10 cases were done under peribulbar anaesthesia and 20 under topical anaesthesia. A complete capsulorhexis was achieved in all cases.The irrigating handpiece maintains deep anterior chamber, stabilizes the globe, facilitates pupillary dilatation, and helps in maintaining the eye in the position with optimal red reflex during needle capsulorhexis. This technique is a safe and effective way to perform needle capsulorhexis.The anterior capsulorhexis has got several intra and post operative advantages over can opener or endocapsular capsulotomies and has become the standard capsulotomy technique for phacoemulsification [1-3]. Anterior capsulorhexis can be performed using 26 G bent needle cystitome or Utratas forceps [1,2]. The needle capsulorhexis can be performed through side port incision using a viscoelastic device or an anterior chamber maintainer [1,2,4,5]. During the performance of capsulorhexis, the globe can be stabilized either using a second instrument such as a Sinskey hook, or by holding limbal conjunctiva with a Lim's forceps. Sinskey hook introduced through a separate side port incision can lead to egress of viscoelastic from the eye and hence risk of radial extension of capsular flap. Holding conjunctiva with Lim's forceps can be traumatic or undesirable under topical anaesthesia.The prerequisites for a good capsulorhexis include a deep well maintained anterior chamber, globe stabilization and globe manipulation to achieve best position for a red glow under retroillumination. All these can be achieved by the technique described by us, which is a modificati
Light curve analysis of Variable stars using Fourier decomposition and Principal component analysis
Sukanta Deb,Harinder P. Singh
Physics , 2009, DOI: 10.1051/0004-6361/200912851
Abstract: Aims: We show the use of principal component analysis (PCA) and Fourier decomposition (FD) method as tools for variable star diagnostics and compare their relative performance in studying the changes in the light curve structures of pulsating Cepheids and in the classification of variable stars. Methods: We have calculated the Fourier parameters of 17,606 light curves of a variety of variables, e.g., RR Lyraes, Cepheids, Mira Variables and extrinsic variables for our analysis. We have also performed PCA on the same database of light curves. The inputs to the PCA are the 100 values of the magnitudes for each of these 17,606 light curves in the database interpolated between phase 0 to 1. Unlike some previous studies, Fourier coefficients are not used as input to the PCA. Results: We show that in general, the first few principal components (PCs) are enough to reconstruct the original light curves compared to FD method where 2 to 3 times more number of parameters are required to satisfactorily reconstruct the light curves. The computation of required number of Fourier parameters on the average needs 20 times more CPU time than the computation of required number of PCs. Therefore, PCA does have some advantage over the FD method in analysing the variable stars in a larger database. However in some cases, particularly in finding the resonances in Fundamental mode (FU) Cepheids, the PCA results show no distinct advantages over the FD method. We also demonstrate that the PCA technique can be used to classify variables into different variability classes in an automated, unsupervised way, a feature that has immense potential for larger databases of the future.
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