151
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152
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Miles JM, Nelson RH, Prasad A, Lerman A. 323 HUMAN HEART. J Investig Med 2006. [DOI: 10.2310/6650.2005.x0004.322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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153
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Miles J, Nelson R, Prasad A, Lerman A. Human Heart. J Investig Med 2006. [DOI: 10.1177/108155890605401s206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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154
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Buddhi D, Baruah BP, Prasad A, Sachdev N, Singh H. Radiological quiz - musculoskeletal. Indian J Radiol Imaging 2006. [DOI: 10.4103/0971-3026.32407] [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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155
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Raghunathan S, Prasad A, Mishra B, Chang H. Open Source Versus Closed Source: Software Quality in Monopoly and Competitive Markets. ACTA ACUST UNITED AC 2005. [DOI: 10.1109/tsmca.2005.853493] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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156
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Prasad A, Corbett C, Parekh NS. Length of stay in hospital before Intensive care and increased mortality. Intensive Care Med 2005; 31:1599. [PMID: 16172843 DOI: 10.1007/s00134-005-2813-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2005] [Indexed: 10/25/2022]
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157
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Jones AR, Gandhewar R, Prasad A, Blyth CPJ. The consequences of abandonment of the bandage lens patient—the cause of an inflammatory iris nodule simulating metastasis from a transitional cell tumor of the bladder. Cont Lens Anterior Eye 2005; 28:135-6. [PMID: 16318844 DOI: 10.1016/j.clae.2005.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2005] [Revised: 04/17/2005] [Accepted: 04/22/2005] [Indexed: 11/25/2022]
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158
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Iasemidis LD, Shiau DS, Pardalos PM, Chaovalitwongse W, Narayanan K, Prasad A, Tsakalis K, Carney PR, Sackellares JC. Long-term prospective on-line real-time seizure prediction. Clin Neurophysiol 2005; 116:532-44. [PMID: 15721067 DOI: 10.1016/j.clinph.2004.10.013] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2004] [Revised: 08/28/2004] [Accepted: 10/07/2004] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Epilepsy, one of the most common neurological disorders, constitutes a unique opportunity to study the dynamics of spatiotemporal state transitions in real, complex, nonlinear dynamical systems. In this study, we evaluate the performance of a prospective on-line real-time seizure prediction algorithm in two patients from a common database. METHODS We previously demonstrated that measures of chaos and angular frequency, estimated from electroencephalographic (EEG) signals recorded at critical sites in the cerebral cortex, progressively converge (i.e. become dynamically entrained) as the epileptic brain transits from the asymptomatic interictal state to the ictal state (seizure) (Iasemidis et al., 2001, 2002a, 2003a). This observation suggested the possibility of developing algorithms to predict seizures well ahead of their occurrences. One of the central points in those investigations was the application of optimization theory, specifically quadratic zero-one programming, for the selection of the critical cortical sites. This current study combines that observation with a dynamical entrainment detection method to prospectively predict epileptic seizures. The algorithm was tested in two patients with long-term (107.54h) and multi-seizure EEG data B and C (Lehnertz and Litt, 2004). RESULTS Analysis from the 2 test patients resulted in the prediction of up to 91.3% of the impending 23 seizures, about 89+/-15min prior to seizure onset, with an average false warning rate of one every 8.27h and an allowable prediction horizon of 3h. CONCLUSIONS The algorithm provides warning of impending seizures prospectively and in real time, that is, it constitutes an on-line and real-time seizure prediction scheme. SIGNIFICANCE These results suggest that the proposed seizure prediction algorithm could be used in novel diagnostic and therapeutic applications in epileptic patients.
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159
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Main E, Prasad A, Schans C. Conventional chest physiotherapy compared to other airway clearance techniques for cystic fibrosis. Cochrane Database Syst Rev 2005; 2005:CD002011. [PMID: 15674888 PMCID: PMC7388307 DOI: 10.1002/14651858.cd002011.pub2] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Cystic fibrosis is an inherited life-limiting disorder, characterised by pulmonary infections and thick airway secretions. Chest physiotherapy has been integral to clinical management in facilitating removal of airway secretions. Conventional chest physiotherapy techniques (CCPT) have depended upon assistance during treatments, while more contemporary airway clearance techniques are self-administered, facilitating independence and flexibility. OBJECTIVES To compare CCPT with other airway clearance techniques in terms of their effects on respiratory function, individual preference, adherence, quality of life and other outcomes. SEARCH STRATEGY We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group trials register which comprises references identified from comprehensive electronic database searches and handsearching of relevant journals and abstract books of conference proceedings. We also searched CINAHL from 1982 to 2002 and AMED from 1985 to 2002. Date of most recent search: January 2004. SELECTION CRITERIA Randomised or quasi-randomised clinical trials including those with a cross-over design where CCPT was compared with other airway clearance techniques. Studies of less than seven days duration were excluded. DATA COLLECTION AND ANALYSIS Two reviewers allocated quality scores to relevant studies and independently extracted data. If we were unable to extract data, we invited authors to submit their data. We excluded studies from meta-analysis when data were lost or study design precluded comparison. For some continuous outcomes, we used the generic inverse variance method for meta-analysis of data from cross-over trials and data from parallel-designed trials were incorporated for comparison. We also examined efficacy of specific techniques and effects of treatment duration. MAIN RESULTS Seventy-eight publications were identified by the searches. Twenty-nine of these were included, representing 15 data sets with 475 participants. There was no difference between CCPT and other airway clearance techniques in terms of respiratory function measured by standard lung function tests. Studies undertaken during acute exacerbations demonstrated relatively large gains in respiratory function irrespective of airway clearance technique. Longer-term studies demonstrated smaller improvements or deterioration over time. Ten studies reported individual preferences for technique, with participants tending to favour self-administered techniques. Heterogeneity in the measurement of preference precluded these data from meta-analysis. AUTHORS' CONCLUSIONS This review demonstrated no advantage of CCPT over other airway clearance techniques in terms of respiratory function. There was a trend for participants to prefer self-administered airway clearance techniques. Limitations of this review included a paucity of well-designed, adequately-powered, long-term trials.
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160
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M. Bass F, Krishnamoorthy A, Prasad A, P. Sethi S. Advertising competition with market expansion for finite horizon firms. ACTA ACUST UNITED AC 2005. [DOI: 10.3934/jimo.2005.1.1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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161
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Burneo JG, Miller S, Bebin EM, Prasad A. Video-EEG study in an adult and a child with eyelid myoclonia with absences. Epileptic Disord 2004; 6:287-91. [PMID: 15634626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2004] [Accepted: 08/10/2004] [Indexed: 05/01/2023]
Abstract
Two patients with eyelid myoclonia with absences (EMA) are described. Videotape of the eyelid myoclonia in one patient is presented. An interesting feature in one patient was the induction of clinical seizures only with daylight, and in another the presence of rare, focal, epileptiform discharges during drowsiness. Valproic acid only partially controlled eyelid myoclonia in both cases. Lamotrigine, alone or in combination with valproate, can be used as an alternative but was ineffective in our cases. [Published with video sequences].
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MESH Headings
- Adult
- Anticonvulsants/adverse effects
- Anticonvulsants/therapeutic use
- Child
- Dominance, Cerebral/physiology
- Drug Therapy, Combination
- Electroencephalography/drug effects
- Epilepsies, Myoclonic/diagnosis
- Epilepsies, Myoclonic/drug therapy
- Epilepsies, Myoclonic/physiopathology
- Epilepsy, Absence/diagnosis
- Epilepsy, Absence/drug therapy
- Epilepsy, Absence/physiopathology
- Epilepsy, Reflex/diagnosis
- Epilepsy, Reflex/drug therapy
- Epilepsy, Reflex/physiopathology
- Evoked Potentials/physiology
- Female
- Frontal Lobe/physiopathology
- Humans
- Lamotrigine
- Male
- Myoclonus/diagnosis
- Myoclonus/drug therapy
- Myoclonus/physiopathology
- Phenytoin/adverse effects
- Phenytoin/therapeutic use
- Photic Stimulation
- Sunlight/adverse effects
- Triazines/adverse effects
- Triazines/therapeutic use
- Valproic Acid/therapeutic use
- Video Recording
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162
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Herman CJ, Allen P, Hunt WC, Prasad A, Brady TJ. Use of complementary therapies among primary care clinic patients with arthritis. Prev Chronic Dis 2004; 1:A12. [PMID: 15670444 PMCID: PMC1277952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Use of complementary and alternative medicine (CAM) for chronic conditions has increased in recent years. There is little information, however, on CAM use among adults with clinic-confirmed diagnoses, including arthritis, who are treated by primary care physicians. METHODS To assess the frequency and types of CAM therapy used by Hispanic and non-Hispanic white women and men with osteoarthritis, rheumatoid arthritis, or fibromyalgia, we used stratified random selection to identify 612 participants aged 18-84 years and seen in university-based primary care clinics. Respondents completed an interviewer-administered survey in English or Spanish. RESULTS Nearly half (44.6%) of the study population was of Hispanic ethnicity, 71.4% were women, and 65.0% had annual incomes of less than 25,000 dollars. Most (90.2%) had ever used CAM for arthritis, and 69.2% were using CAM at the time of the interview. Current use was highest for oral supplements (mainly glucosamine and chondroitin) (34.1%), mind-body therapies (29.0%), and herbal topical ointments (25.1%). Fewer participants made current use of vitamins and minerals (16.6%), herbs taken orally (13.6%), a CAM therapist (12.7%), CAM movement therapies (10.6%), special diets (10.1%), or copper jewelry or magnets (9.2%). Those with fibromyalgia currently used an average of 3.9 CAM therapies versus 2.4 for those with rheumatoid arthritis and 2.1 for those with osteoarthritis. Current CAM use was significantly associated with being female, being under 55 years of age, and having some college education. CONCLUSION Hispanic and non-Hispanic white arthritis patients used CAM to supplement conventional treatments. Health care providers should be aware of the high use of CAM and incorporate questions about its use into routine assessments and treatment planning.
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163
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Prasad A, Kuzniecky RI, Knowlton RC, Welty TE, Martin RC, Mendez M, Faught RE. Evolving Antiepileptic Drug Treatment in Juvenile Myoclonic Epilepsy—Reply. ACTA ACUST UNITED AC 2004. [DOI: 10.1001/archneur.61.8.1328-b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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164
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Palmer D, Prasad A, Arbab-Zadeh A, Zhang R, Dijk E, Williams K, Webster K, Martini E, Fu Q, Levine BD. Six Months of Endurance Training Increases Left Ventricular Stroke Volume and Diastolic Reserve in Sedentary Seniors. Med Sci Sports Exerc 2004. [DOI: 10.1249/00005768-200405001-00407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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165
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Prasad A, Younger DS. Lyme neuroborreliosis. Drugs Today (Barc) 2004; 34:537-40. [PMID: 15010714 DOI: 10.1358/dot.1998.34.6.485251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The series on treatable neuromuscular disorders continues with the present article on the peripheral nervous system manifestations of Lyme neuroborreliosis.
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166
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Prasad A. A quantitative analysis of low density polyethylene and linear low density polyethylene blends by differential scanning calorimetery and fourier transform infrared spectroscopy methods. POLYM ENG SCI 2004. [DOI: 10.1002/pen.10342] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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167
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Dente JM, Herman CJ, Allen P, Prasad A. 401 ETHNIC DIFFERENCES IN THE USE OF COMPLEMENTARY AND ALTERNATIVE THERAPIES AMONG ADULTS WITH OSTEOARTHRITIS. J Investig Med 2004. [DOI: 10.1136/jim-52-suppl1-401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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168
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Martin R, Burneo JG, Prasad A, Powell T, Faught E, Knowlton R, Mendez M, Kuzniecky R. Frequency of epilepsy in patients with psychogenic seizures monitored by video-EEG. Neurology 2003; 61:1791-2. [PMID: 14694050 DOI: 10.1212/01.wnl.0000098890.13946.f5] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This study examined the frequency of epilepsy in a consecutive series of patients who received a definitive diagnosis of psychogenic nonepileptic seizures (PNES) after completing inpatient video-EEG (VEEG) monitoring. Of the 1,590 patients receiving definitive diagnosis, 514 (32.3%) were diagnosed with PNES. Twenty-nine (5.3%) of these patients were found to have both PNES and epilepsy. When strict diagnostic criteria are applied, there is little overlap between epileptic seizures and PNES among patients referred for VEEG monitoring.
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169
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Burneo JG, Martin R, Powell T, Greenlee S, Knowlton RC, Faught RE, Prasad A, Mendez M, Kuzniecky RI. Teddy bears: an observational finding in patients with non-epileptic events. Neurology 2003; 61:714-5. [PMID: 12963774 DOI: 10.1212/wnl.61.5.714-a] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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170
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Burneo JG, Limdi N, Kuzniecky RI, Knowlton RC, Mendez M, Lawn N, Faught E, Welty TE, Prasad A. Neurotoxicity following addition of intravenous valproate to lamotrigine therapy. Neurology 2003; 60:1991-2. [PMID: 12821749 DOI: 10.1212/01.wnl.0000065915.68602.91] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Reversible neurotoxic symptoms were observed in three adult patients with absence status epilepticus on lamotrigine (LTG) therapy after administration of an IV bolus followed by oral valproic acid (VPA). Neurotoxicity was likely related to elevated serum LTG levels, as improvement correlated with discontinuing or reducing LTG dosage.
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171
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Prasad A, Bhoi KK, Bala K, Anand KS, Pal HK. Phenylpropanolamine-induced intraventricular hemorrhage. Neurol India 2003; 51:117-8. [PMID: 12865543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Intracranial hemorrhage is an uncommon complication of phenylpropanolamine. There is an increasing awareness of this complication in the West. However, to the best of our knowledge there have been no cases reported from India. Here we report a patient who developed Intraventricular hemorrhage following ingestion of Phenylpropanolamine, from which he made an uneventul recovery over the next two weeks.
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172
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Roldan CA, Gelgand EA, Decker P, Prasad A, Shively BK. Morphology of anorexigen-associated valve disease by transthoracic and transesophageal echocardiography. Am J Cardiol 2002; 90:1269-73. [PMID: 12450616 DOI: 10.1016/s0002-9149(02)02852-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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173
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Prasad A, Sarin YK, Ramji S, Suri VS, Sinha A, Malhotra V. Mediastinal enteric duplication cyst containing aberrant pancreas. Indian J Pediatr 2002; 69:961-2. [PMID: 12503660 DOI: 10.1007/bf02726014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The purpose of the study is to report a unique association of clinical and pathological findings in a neonate. Foregut enteric duplication cysts--rare developmental anomalies that are associated with midline vertebral fusion anomalies. METHODS We had a neonate with foregut duplication cyst who presented at birth with respiratory distress. The child also had associated communicating hydrocephalus. The patient underwent excision of the duplication cyst along with a ventriculo-peritoneal shunt. RESULT The excised specimen revealed a duplication cyst lined by aberrant pancreatic tissue. CONCLUSION The present case demonstrates histologically the presence of both pancreatic and gastric tissue.
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174
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Poddar U, Thapa BR, Prasad A, Sharma AK, Singh K. Natural history and risk factors in fulminant hepatic failure. Arch Dis Child 2002; 87:54-6. [PMID: 12089125 PMCID: PMC1751142 DOI: 10.1136/adc.87.1.54] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND The natural history of fulminant hepatic failure (FHF) without liver transplantation is not well known. AIMS To study the natural history and prognostic factors, especially the presence of ascites and spontaneous bacterial peritonitis (SBP), in children with FHF. METHODS FHF was defined by the onset of encephalopathy within 12 weeks of onset of jaundice. From August 1997 to December 2000, 67 children (< or =12 years) were diagnosed with FHF. Their clinical features, investigations and outcome were noted. Viral markers A to E (IgM, anti-HAV; IgM, anti-HEV, HBsAg, and anti-HCV) were determined by ELISA. SBP was defined by the presence of > or =250 neutrophils with or without a positive culture in ascitic fluid. RESULTS Mean age of the children was 5.8 years with an almost equal sex distribution. Viral markers were positive in 63 (94%) cases: hepatitis A in 34 (54%), E in 17 (27%), A+E in seven (11%), and B in five (8%). Thirty one children presented with grade I or II encephalopathy and all recovered, whereas 17 of 36 children who had grade III or IV encephalopathy died. Ascites was detected (both clinically and ultrasonically) in 34 (51%) cases, nine (26%) of which had SBP. Overall mortality was 25%. Mortality was higher in those who had ascites than in those who did not (32% v 18%); among those with ascites it was maximum in those who had SBP (78% v 16%). Total serum bilirubin and grade of encephalopathy were significantly higher, serum albumin was significantly lower, and prothrombin time was significantly prolonged in those who died than in those who recovered. CONCLUSION The natural history of FHF in Indian children depends on age, grade of encephalopathy, ascites, and SBP. SBP depicts worse outcome. In all cases of FHF with ascites, the presence of SBP should be investigated.
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175
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Mandelkern L, Prasad A, Alamo RG, Stack GM. Melting temperature of the n-alkanes and the linear polyethylenes. Macromolecules 2002. [DOI: 10.1021/ma00217a025] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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