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Sharma MC, Arora V. Determination of Working Length of Root Canal. Med J Armed Forces India 2010; 66:231-4. [PMID: 27408308 DOI: 10.1016/s0377-1237(10)80044-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Accepted: 05/05/2010] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND This study was undertaken to determine the working length of root canal by microprocessor controlled impedance quotient apex locator and conventional radiographic method. METHODS Patients whose teeth were to be extracted were selected for this study. A total of 100 teeth in the same or different patients were identified. Biomechanical preparation of the canal was done for smooth negotiation of the entire canal. The electrode of the Root ZX™ was attached to the selected file and the length adjusted till the beep of the Root ZX™ indicated the apical foramen. The electrode was removed but the file was stabilized with the help of soft gutta percha. An intraoral periapical (IOPA) radiograph was taken using basic guidelines. The tooth was then extracted under local anaesthesia along with the file in the tooth. A window was cut on one surface of the root apex approximately 4mm from the apex to expose the root canal. The file tip was identified. The distance of the file tip from the apex was measured under 3X magnification and the reading recorded. Similarly the distance from the file tip to the radiographic apex was measured on the radiograph under magnification and the reading recorded. All the readings were tabulated. The actual distances measured between the extracted tooth, the electronic apex locator and on the radiograph were compared using a paired 't' test to determine the accuracy of each method in relation to the minor diameter. RESULT It was observed that the radiographic method had a significant variation from the electronic method when compared to the actual measurement on the extracted tooth. CONCLUSION The electronic method is a more accurate method as compared to radiographic method for determination of working length of the root canal.
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Alexander K, Authier S, del Castillo JRE, Arora V, Qi S, Guillot M, Beauchamp G, Troncy E. Patlak plot analysis CT-GFR for the determination of renal function: comparison of normal dogs with autologous kidney transplant dogs. CONTRAST MEDIA & MOLECULAR IMAGING 2010; 5:133-9. [DOI: 10.1002/cmmi.372] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kuhad A, Arora V, Chopra K. Recent advances in polyphenol research: Highlights from the 4th International Conference on Polyphenols and Health. DRUG FUTURE 2010. [DOI: 10.1358/dof.2010.035.010.1513901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Arora V, Bonington S, Kochhar R. Significance of salivary gland incidentaloma identified on [18F]fluorodeoxyglucose PET/CT in patients with a known malignancy. Cancer Imaging 2010. [DOI: 10.1102/1470-7330.2010.9039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Kuhad A, Arora V, Chopra K. Recent advances in polyphenol research: Highlights from the 4th International Conference on Polyphenols and Health. DRUG FUTURE 2010. [DOI: 10.1358/dof.2010.35.10.1513901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Chander J, Kaur J, Gulati N, Arora V, Nagarkar N, Sood S, Mohan H. Sudden vision loss caused by rhino-orbital zygomycosis in diabetic patients: case series. Mycoses 2009; 54:e228-32. [PMID: 20028465 DOI: 10.1111/j.1439-0507.2009.01831.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rhino-orbital zygomycosis is a life-threatening fungal infection generally occurring in patients with an underlying disorder, such as diabetes mellitus with ketoacidosis or with immunocompromising factors, although it may rarely appear in healthy individuals. The study has been undertaken to discuss the clinical presentation, pathogenesis, diagnostic work up and management of this rapidly progressive disease. Four male patients having uncontrolled diabetes and presenting with signs and symptoms of rhino-orbital zygomycosis were studied to illustrate the serious nature of the disease. All the four patients had rapidly deteriorating vision loss either unilateral or bilateral along with other nasal and orbital signs and symptoms. All the patients were put on liposomal amphotericin B and underwent orbital exenteration and pansinusectomy. One patient died, while the other three were successfully treated. Early diagnosis is critical in the prevention of morbidity and mortality associated with the disease. There is need for a high index of clinical suspicion in immunocompromised patients. Timely medical-surgical treatment proves extremely important for prognosis.
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Pamarthi M, Taylor G, Wilson J, Scuderi P, Arora V. Pharmacokinetics of Subcutaneously Administered Alpha-1 Antitrypsin. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Purohit D, Trehan A, Arora V. Development of Room Temperature Stable Formulation of Formoterol Fumarate/Beclomethasone HFA pMDI. Indian J Pharm Sci 2009. [PMCID: PMC2846486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The primary aim of present investigation was to develop and formulate room temperature stable formulation of formoterol fumarate and beclomethasone dipropionate with extra fine part size of hydrofluoroalkane pressurized metered dose inhalers. Particle size distribution of hydrofluoroalkane pressurized metered dose inhalers was evaluated using Twin Stage Glass Impinger and Anderson Cascade Impactor. A tetrafluoroethane and/or heptafluoropropane were evaluated for preparation of hydrofluoroalkane pressurized metered dose inhalers. The fine particle fractions delivered from hydrofluoroalkane propellant suspension pressurized metered dose inhalers can be predicted on the basis of formulation parameters and is dependent of metering chamber of valve and orifice size of actuators. The results presented in investigation showed the importance of formulation excipients with formulation of pressurized metered dose inhalers viz, canister, valve and actuators used in formulations.
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Chawla S, Wee DTH, Arora V. Adult chiari malformation presenting as bilateral vocal cord paralysis. Indian J Otolaryngol Head Neck Surg 2008; 60:382-3. [PMID: 23120588 PMCID: PMC3476810 DOI: 10.1007/s12070-008-0121-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
In the Chiari malformations, herniation of the cerebellar tonsils through the foramen magnum into the cervical spinal canal can often result in headaches and spinal cord deficits. Bilateral vocal cord paralysis has been reported as a result of Chiari malformation but is rare and the vast majority of reports have been in the paediatric population. We report a case in a 68-year-old man with adult Chiari malformation where aspiration pneumonia from bilateral vocal cord palsy was the only manifestation of this malformation.
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Arora H, Arora V. Effects of Hamycin, a New Antifungal Antibiotic, on the Electrolytes in the Rat Heart. Pharmacology 2008. [DOI: 10.1159/000135235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Arora V, Nijjar IBS, Multani AS, Singh JP, Abrol R, Chopra R, Attri R. MRI findings in methanol intoxication: a report of two cases. Br J Radiol 2007; 80:e243-6. [PMID: 17959915 DOI: 10.1259/bjr/40137535] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Methanol is a highly toxic substance and acute methanol poisoning produces severe metabolic acidosis and serious neurological symptoms, including severe visual impairment, extrapyramidal signs and coma. Its similarity to ethanol in appearance and odour leads to accidental use. We present two cases of accidental methanol intoxication and discuss the MRI findings.
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LNU P, Ahmed SM, Choudhary J, Ahmed M, Arora V, Ali S. Treatment of ventilator-associated pneumonia with piperacillin-tazobactum and amikacin vs cefepime and levofloxacin: A randomized prospective study. Indian J Crit Care Med 2007. [DOI: 10.4103/0972-5229.35084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Pamarthi M, Taylor G, Scuderi P, Arora V. Subcutaneous Bioavailability of Gamunex® in Rabbits. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Upadhyay SK, Kumar P, Arora V. Complexes of quinolone drugs norfloxacin and ciprofloxacin with alkaline earth metal perchlorates. J STRUCT CHEM+ 2006. [DOI: 10.1007/s10947-006-0428-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Arora V, Luckas MJM. Pseudomembranous colitis, a complication of erythromycin and preterm prelabour rupture of membranes. BJOG 2006; 113:489-90. [PMID: 16553659 DOI: 10.1111/j.1471-0528.2006.00912.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Arora V, Johnson J, Lovinger D, Humphrey HJ, Meltzer DO. Communication failures in patient sign-out and suggestions for improvement: a critical incident analysis. Qual Saf Health Care 2006; 14:401-7. [PMID: 16326783 PMCID: PMC1744089 DOI: 10.1136/qshc.2005.015107] [Citation(s) in RCA: 407] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The transfer of care for hospitalized patients between inpatient physicians is routinely mediated through written and verbal communication or "sign-out". This study aims to describe how communication failures during this process can lead to patient harm. METHODS In interviews employing critical incident technique, first year resident physicians (interns) described (1) any adverse events or near misses due to suboptimal preceding patient sign-out; (2) the worst event due to suboptimal sign-out in which they were involved; and (3) suggestions to improve sign-out. All data were analyzed and categorized using the constant comparative method with independent review by three researchers. RESULTS Twenty six interns caring for 82 patients were interviewed after receiving sign-out from another intern. Twenty five discrete incidents, all the result of communication failures during the preceding patient sign-out, and 21 worst events were described. Inter-rater agreement for categorization was high (kappa 0.78-1.00). Omitted content (such as medications, active problems, pending tests) or failure-prone communication processes (such as lack of face-to-face discussion) emerged as major categories of failed communication. In nearly all cases these failures led to uncertainty during decisions on patient care. Uncertainty may result in inefficient or suboptimal care such as repeat or unnecessary tests. Interns desired thorough but relevant face-to-face verbal sign-outs that reviewed anticipated issues. They preferred legible, accurate, updated, written sign-out sheets that included standard patient content such as code status or active and anticipated medical problems. CONCLUSION Communication failures during sign-out often lead to uncertainty in decisions on patient care. These may result in inefficient or suboptimal care leading to patient harm.
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Arora V, Jha U, Bandhopadhyay P, Kumar S. An investigation of the relationship between raw coal characteristics and effluent quality of Kedla and Rajrappa Washeries, Jharkhand, India. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2006; 78:392-404. [PMID: 16171927 DOI: 10.1016/j.jenvman.2005.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2004] [Revised: 03/10/2005] [Accepted: 05/18/2005] [Indexed: 05/04/2023]
Abstract
An attempt was made to investigate the relationship between raw coal characteristics and effluent quality in two coking coal washeries of Central Coalfields Limited, Kedla and Rajrappa in Jharkhand State, India. Coal samples-raw coal feed, washed fine clean coal, washed coarse clean coal, middlings and rejects were collected. Similarly, raw water (intake to washery) and effluent samples generated in the washeries, namely, fine coal jig under water, coarse coal jig under water and slurry pond water were also collected over a period of 6 months. Parameters outlined in Ministry of Environment and Forest (MoEF) Schedule VI Indian standards were determined, both in coal samples and water/washery effluent samples. Apart from the parameters listed in the standard, sodium, potassium, calcium, magnesium, sulphate and chloride found to be present in coal were also determined in coal and water samples. The processing results essentially in production of huge quantities of suspended material, which is beyond the stipulated limit of 100mg/l as specified in the Standard. Lowering of pH was observed in both the washeries. The trace/heavy elements were found to be concentrated in the heavier fractions in rejects produced from the washery. The concentrations of major elements in coal-Na, K, Ca, Mg, and minor elements in coal-Mn; F, SO4 and Cl were found to be higher in process water than in raw water indicating that these elements are transferred from coal to the water in washeries. However, only in the case of Mn, the stipulated limit of the effluent standard was exceeded. Trace elements like As, Se, Hg, Cd, though found to be present in coal, were absent in the process water indicating that these elements are not released by coal during washing.
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Arora V, Nijjar IS, Sandhu PS, Singh J, Abrol R, Roopa. Hypertrophic olivary degeneration following trauma - a case report. Indian J Radiol Imaging 2006. [DOI: 10.4103/0971-3026.32327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Arora V, Nijjar IS, Abrol R, Chopra R, Roopa. Twin-Twin transfusion syndrome: - A case report. Indian J Radiol Imaging 2006. [DOI: 10.4103/0971-3026.32351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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70
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Arora V, Johnson J, Lovinger D, Humphrey HJ, Meltzer DO. Communication failures in patient sign-out and suggestions for improvement: a critical incident analysis. Qual Saf Health Care 2005. [PMID: 16326783 DOI: 10.1136/qshc.2005.015107.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND The transfer of care for hospitalized patients between inpatient physicians is routinely mediated through written and verbal communication or "sign-out". This study aims to describe how communication failures during this process can lead to patient harm. METHODS In interviews employing critical incident technique, first year resident physicians (interns) described (1) any adverse events or near misses due to suboptimal preceding patient sign-out; (2) the worst event due to suboptimal sign-out in which they were involved; and (3) suggestions to improve sign-out. All data were analyzed and categorized using the constant comparative method with independent review by three researchers. RESULTS Twenty six interns caring for 82 patients were interviewed after receiving sign-out from another intern. Twenty five discrete incidents, all the result of communication failures during the preceding patient sign-out, and 21 worst events were described. Inter-rater agreement for categorization was high (kappa 0.78-1.00). Omitted content (such as medications, active problems, pending tests) or failure-prone communication processes (such as lack of face-to-face discussion) emerged as major categories of failed communication. In nearly all cases these failures led to uncertainty during decisions on patient care. Uncertainty may result in inefficient or suboptimal care such as repeat or unnecessary tests. Interns desired thorough but relevant face-to-face verbal sign-outs that reviewed anticipated issues. They preferred legible, accurate, updated, written sign-out sheets that included standard patient content such as code status or active and anticipated medical problems. CONCLUSION Communication failures during sign-out often lead to uncertainty in decisions on patient care. These may result in inefficient or suboptimal care leading to patient harm.
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Grant R, Arain A, Arora V, Barr A, Black T, Chen J, Wang S, Yuan F, Zhang Y. Intercomparison of techniques to model high temperature effects on CO2 and energy exchange in temperate and boreal coniferous forests. Ecol Modell 2005. [DOI: 10.1016/j.ecolmodel.2005.01.060] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Nijjar IBS, Singh JP, Arora V, Abrol R, Sandhu PS, Chopra R, Roopa. MRI in intraocular cysticercosis - A case report. Indian J Radiol Imaging 2005. [DOI: 10.4103/0971-3026.29142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Arora V, Nijjar IBS, Mahajan DS, Sandhu PS, Singh JP, Chopra R. MRI in seizure disorder - a pictorial essay. Indian J Radiol Imaging 2005. [DOI: 10.4103/0971-3026.29148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Arora V, Nijjar IS, Thukral H, Roopa. Bilateral putaminal necrosis caused by methanol intoxication- A case report. Indian J Radiol Imaging 2005. [DOI: 10.4103/0971-3026.29149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Kumar A, Arora V, Mathur M. Toxoplasma Antibody Levels in Females with Habitual or Sporadic Abortions and Normal Pregnancies. Indian J Med Microbiol 2004. [DOI: 10.1016/s0255-0857(21)02783-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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