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Ernst LD, Raslan AM, Wabulya A, Shin HW, Cash SS, Yang JC, Sagi V, King-Stephens D, Damisah EC, Ramos A, Hussain B, Toprani S, Brandman DM, Shahlaie K, Kanth K, Arain A, Peters A, Rolston JD, Berns M, Patel SI, Uysal U. Responsive neurostimulation as a treatment for super-refractory focal status epilepticus: a systematic review and case series. J Neurosurg 2024; 140:201-209. [PMID: 37329518 DOI: 10.3171/2023.4.jns23367] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 04/25/2023] [Indexed: 06/19/2023]
Abstract
OBJECTIVE Super-refractory status epilepticus (SRSE) has high rates of morbidity and mortality. Few published studies have investigated neurostimulation treatment options in the setting of SRSE. This systematic literature review and series of 10 cases investigated the safety and efficacy of implanting and activating the responsive neurostimulation (RNS) system acutely during SRSE and discusses the rationale for lead placement and selection of stimulation parameters. METHODS Through a literature search (of databases and American Epilepsy Society abstracts that were last searched on March 1, 2023) and direct contact with the manufacturer of the RNS system, 10 total cases were identified that utilized RNS acutely during SE (9 SRSE cases and 1 case of refractory SE [RSE]). Nine centers obtained IRB approval for retrospective chart review and completed data collection forms. A tenth case had published data from a case report that were referenced in this study. Data from the collection forms and the published case report were compiled in Excel. RESULTS All 10 cases presented with focal SE: 9 with SRSE and 1 with RSE. Etiology varied from known lesion (focal cortical dysplasia in 7 cases and recurrent meningioma in 1) to unknown (2 cases, with 1 presenting with new-onset refractory focal SE [NORSE]). Seven of 10 cases exited SRSE after RNS placement and activation, with a time frame ranging from 1 to 27 days. Two patients died of complications due to ongoing SRSE. Another patient's SE never resolved but was subclinical. One of 10 cases had a device-related significant adverse event (trace hemorrhage), which did not require intervention. There was 1 reported recurrence of SE after discharge among the cases in which SRSE resolved up to the defined endpoint. CONCLUSIONS This case series offers preliminary evidence that RNS is a safe and potentially effective treatment option for SRSE in patients with 1-2 well-defined seizure-onset zone(s) who meet the eligibility criteria for RNS. The unique features of RNS offer multiple benefits in the SRSE setting, including real-time electrocorticography to supplement scalp EEG for monitoring SRSE progress and response to treatment, as well as numerous stimulation options. Further research is indicated to investigate the optimal stimulation settings in this unique clinical scenario.
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Affiliation(s)
| | - Ahmed M Raslan
- 2Neurological Surgery, Oregon Health & Science University, Portland, Oregon
| | - Angela Wabulya
- 3Department of Neurology, University of North Carolina, Chapel Hill, North Carolina
| | - Hae Won Shin
- 4Department of Neurology, University of New Mexico School of Medicine, Albuquerque, New Mexico
| | - Sydney S Cash
- 5Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts
| | - Jimmy C Yang
- 6Department of Neurological Surgery, Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Vishwanath Sagi
- 7Department of Neurology, University of Louisville, Kentucky
| | | | | | - Alexander Ramos
- 10Mid-Atlantic Epilepsy and Sleep Center, Bethesda, Maryland
| | | | | | - David M Brandman
- 12Neurological Surgery, University of California, Davis, California
| | - Kiarash Shahlaie
- 12Neurological Surgery, University of California, Davis, California
| | | | - Amir Arain
- 13Department of Neurology, University of Utah, Salt Lake City, Utah
| | - Angela Peters
- 13Department of Neurology, University of Utah, Salt Lake City, Utah
| | - John D Rolston
- 14Department of Neurological Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Meaghan Berns
- 15Department of Neurology, University of Minnesota, Minneapolis, Minnesota
| | - Sima I Patel
- 15Department of Neurology, University of Minnesota, Minneapolis, Minnesota
| | - Utku Uysal
- 16Department of Neurology, University of Kansas Medical Center, Kansas City, Kansas
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Hussain B, Kannikeswaran N, Mathew R, Arora R. Evaluation of advanced practice provider related return visits to a pediatric emergency department and their outcomes. Am J Emerg Med 2021; 52:174-178. [PMID: 34942426 DOI: 10.1016/j.ajem.2021.11.040] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/22/2021] [Accepted: 11/29/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND While multiple studies have evaluated physician-related return visits (RVs) to a pediatric emergency department (PED) limited data exists for Advanced Practice Provider (APP)-related RVs, hence our study aimed to evaluate APP-related RVs and their outcomes in a PED. METHODS We conducted a retrospective review of 72-h RVs where clinical care was independently provided by an APP during the index visit from January 2018 to December 2019. We extracted patient demographics, index and return visits' characteristics and outcomes. Reasons for RVs were categorized as progression of illness, medication-related, callbacks and others. Index visits were assessed for any diagnostic errors; impact of which to the patient was classified as none, minor or major. RESULTS Our APP-related RV rate was 2.1% (653/30,328). 462 eligible RVs were included in the final analysis. Majority of RVs were for medical reasons (n = 442, 95.7%); lower acuity (Emergency Severity Index ≥3, n = 426, 92.2%); due to persistence/progression of illness (n = 403; 87.2%) with viral illness being the common diagnosis (n = 159; 34.4%). 12 (2.6%) RVs were secondary to callbacks (8 radiology callbacks; 4 false positive blood cultures). Diagnostic errors were noted in 14 (3%) encounters of which 3 resulted in a major impact; radiological (7 fractures) and ophthalmological (2 corneal abrasions and 2 foreign bodies) misses constituted the majority of these. CONCLUSIONS APP-related RVs for low acuity medical patients remain low and are associated with good outcomes. Diagnostic errors account for a minority of these RVs. Focused interventions targeting provider errors can further decrease these RVs.
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Affiliation(s)
- Batool Hussain
- Pediatric Emergency Medicine Fellow, Children's Hospital of Michigan, 3901 Beaubien Blvd, Detroit, MI 48201, United States of America.
| | - Nirupama Kannikeswaran
- Pediatrics and Emergency Medicine, Central Michigan University, Carman and Ann Adams Department of Pediatrics, Division of Emergency Medicine, Children's Hospital of Michigan, MI, United States of America.
| | - Reny Mathew
- Pediatric Resident, Children's Hospital of Michigan, MI, United States of America.
| | - Rajan Arora
- Pediatrics and Emergency Medicine, Central Michigan University, Carman and Ann Adams Department of Pediatrics, Division of Emergency Medicine, Children's Hospital of Michigan, MI, United States of America.
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Shahid S, Sultana T, Sultana S, Hussain B, Irfan M, Al-Ghanim KA, Misned FA, Mahboob S. Histopathological alterations in gills, liver, kidney and muscles of Ictalurus punctatus collected from pollutes areas of River. BRAZ J BIOL 2021; 81:814-821. [DOI: 10.1590/1519-6984.234266] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 04/19/2020] [Indexed: 11/22/2022] Open
Abstract
Abstract Untreated sewage and industrial wastes from Faisalabad city are disposed to River Chenab through Chakbandi Main Drain (CMD). The present project is planned to investigate the effects of this freshwater pollution on the body of fish Ictalurus punctatus. The specimens of this fish species were collected upstream and downstream of the entrance of CMD into River Chenab. Fish gills, liver, kidney and muscles from dorsolateral regions of fish were subjected to histopathology. Farmed fish and fish from upstream areas were used as control. Fish collected from polluted experimental sites showed significant damage in selected organs. Gill tissues showed an abnormality in the form of an uplifting of the primary epithelium, fusion, vacuolation, hypertrophy, and necrosis. While liver tissues subjected to hepatocytes degeneration, necrosis, mitochondrial granular hepatocyte, and sinusoids dilation. Kidney tissues indicated increased bowmen space and constricted glomerulus and degenerated nephrons. Edema, necrosis, and atrophy were observed in muscle tissues of fish from polluted areas. Fish from the upstream area showed fused gill lamellae, inflammatory cell infiltration, hypertrophy and vacuolation in hepatocytes. Kidney tissues indicated the presence of nuclear tubular cells, destructive renal tubules, hemorrhage, and necrosis at tubular epithelium. Intra myofibril spaces were also observed in muscles. Specimens of control fish indicated no variation in gills, liver, kidney, and muscles. The present study revealed a strong correlation between the degree of tissue damage and environmental contamination. Present findings also compel global warnings to protect our water bodies and fish to rescue the human population.
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Affiliation(s)
- S. Shahid
- Government College University, Pakistan
| | | | | | | | - M. Irfan
- Government College University, Pakistan
| | | | | | - Shahid Mahboob
- Government College University, Pakistan; King Saud University, Saudi Arabia
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Hussain B, Sitto TM, Sethuraman U. Thrombosis of external iliac and common femoral arteries secondary to blunt trauma due to handlebar injury. Am J Emerg Med 2021; 49:291-293. [PMID: 34175733 DOI: 10.1016/j.ajem.2021.06.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/15/2021] [Revised: 05/26/2021] [Accepted: 06/12/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Vascular injuries are uncommon following a bicycle handlebar injury in children. However, they are associated with an extremely high morbidity including limb loss and asymmetric limb growth. CASE PRESENTATION 11 year old previously healthy female who presented to a pediatric emergency department immediately after sustaining blunt trauma to her abdomen by a bicycle handlebar. She complained of pain in her right lower extremity without paresthesia and was noted to have a painful superficial laceration to the right lower abdomen with tenderness on palpation. The extremity was noted to be mottled, cool to touch, with decreased sensations and delayed capillary refill but intact motor function. The peripheral pulses in the extremity were noted to be absent on exam, which was confirmed by a bedside Doppler. A Computed Tomography Angiography (CTA) of the abdomen and pelvis revealed an occluding thrombus in the external iliac and right common femoral arteries which required surgical repair. She subsequently developed occlusion secondary to traumatic dissection and compartment syndrome in the same extremity requiring repeat surgical intervention. CONCLUSION In managing patients with blunt force trauma to the abdomen from handlebars, clinicians should have a high index of suspicion for vascular injuries even with low-risk mechanism of injury and superficial injuries noted on exam. Their assessment should include immediate examination of bilateral peripheral pulses of the lower extremities to evaluate for clinical findings associated with acute lower limb ischemia as well as bedside Doppler exams and early consideration of CTA to assess for occult vascular injury.
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Affiliation(s)
- Batool Hussain
- Pediatric Emergency Medicine, Children's Hospital of Michigan, 3901 Beaubien Street, Detroit, MI 48201, USA..
| | - Theresa M Sitto
- Medical Student, Michigan State University College of Osteopathic Medicine, East Lansing, MI 48824, USA
| | - Usha Sethuraman
- Pediatric Emergency Medicine, Children's Hospital of Michigan and Central Michigan University, Mount Pleasant, MI 48201, USA..
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Higginbottom G, Evans C, Bharj K, Morgan M, Eldridge J, Hussain B. 1.11-P16Interventions that improve maternity care and access for immigrant women in the UK: a narrative synthesis systematic review. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky048.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - C Evans
- University of Nottingham, United Kingdom
| | - K Bharj
- University of Leeds, United Kingdom
| | - M Morgan
- King's College London, United Kingdom
| | - J Eldridge
- University of Nottingham, United Kingdom
| | - B Hussain
- School of Health Sciences, University of Nottingham, United Kingdom
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Ahmad S, Saleem Z, Jabeen F, Hussain B, Sultana T, Sultana S, Al-Ghanim KA, Al-Mulhim NMA, Mahboob S. Potential of natural repellents methylanthranilate and anthraquinone applied on maize seeds and seedlings against house sparrow (Passer domesticus) in captivity. BRAZ J BIOL 2018; 78:667-672. [PMID: 29412246 DOI: 10.1590/1519-6984.171686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 04/26/2017] [Indexed: 03/22/2024] Open
Abstract
Various bird pests caused severe economic losses to valuable crops and fruit orchards all over the world. Among the birds, house sparrow is also considered to cause heavy plunder, not only to seeds of crops but also seedlings especially in organic farming. In present study two bird repellents, methylanthranilate and anthraquinone tested against house sparrows on maize seeds and seedlings in aviary conditions. Trial group in aviary-I, the treated maize seeds and seedlings with different doses of both bird repellents, control group in aviary-II, untreated seeds and seedlings were provided for three hours in the early morning. In each aviary, two closed circuit cameras were also installed to monitor the behavioral responses against different concentrations of both chemical repellents. Statistical analysis showed that there existed highly significant (P<0.01) variations among the trial and control groups for seeds and seedlings. By comparing both repellents, significant (P<0.05) differences were detected and anthraquinone showed better efficacy when compared to methylanthranilate, but in maize seedlings both repellents equal repellent properties. Non-significant (P>0.05) differences were observed in different grading of both natural chemical repellents for maize seeds while significant (P<0.05) variations were noticed for maize seedlings when provided to sparrows. By videotaped behavior sparrows presented manifest head juddering and feather upsetting activities by consumption of treated seeds and seedlings with higher concentrations of both natural bird repellents.
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Affiliation(s)
- S Ahmad
- Department of Zoology, Government College University, Faisalabad, 38000, Pakistan
| | - Z Saleem
- Department of Zoology, Government College University, Faisalabad, 38000, Pakistan
| | - F Jabeen
- Department of Zoology, Government College University, Faisalabad, 38000, Pakistan
| | - B Hussain
- Department of Zoology, Government College University, Faisalabad, 38000, Pakistan
| | - T Sultana
- Department of Zoology, Government College University, Faisalabad, 38000, Pakistan
| | - S Sultana
- Department of Zoology, Government College University, Faisalabad, 38000, Pakistan
| | - K A Al-Ghanim
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - N M A Al-Mulhim
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - S Mahboob
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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Hall M, Hussain B, White S, Diver C, Doherty M, Nair RD, Zhang W. Acceptability and feasibility of a Mindfulness intervention for people with osteoarthritis-related knee pain. Physiotherapy 2017. [DOI: 10.1016/j.physio.2017.11.209] [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: 11/28/2022]
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Hussain B, Reddy S, Prasad L, Madhavi G. Autologous blood transfusion in open heart surgeries under cardio-pulmonary bypass - Clinical appraisal. J Med Allied Sci 2017. [DOI: 10.5455/jmas.246306] [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: 11/03/2022] Open
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van Dijk AC, Truijman MTB, Hussain B, Zadi T, Saiedie G, de Rotte AAJ, Liem MI, van der Steen AFW, Daemen MJAP, Koudstaal PJ, Nederkoorn PJ, Hendrikse J, Kooi ME, van der Lugt A. Intraplaque Hemorrhage and the Plaque Surface in Carotid Atherosclerosis: The Plaque At RISK Study (PARISK). AJNR Am J Neuroradiol 2015; 36:2127-33. [PMID: 26251429 DOI: 10.3174/ajnr.a4414] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 03/14/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND PURPOSE An important characteristic of vulnerable plaque, intraplaque hemorrhage, may predict plaque rupture. Plaque rupture can be visible on noninvasive imaging as a disruption of the plaque surface. We investigated the association between intraplaque hemorrhage and disruption of the plaque surface. MATERIALS AND METHODS We selected the first 100 patients of the Plaque At RISK study, an ongoing prospective noninvasive plaque imaging study in patients with mild-to-moderate atherosclerotic lesions in the carotid artery. In carotid artery plaques, disruption of the plaque surface (defined as ulcerated plaques and/or fissured fibrous cap) and intraplaque hemorrhage were assessed by using MDCTA and 3T MR imaging, respectively. We used a χ(2) test and multivariable logistic regression to assess the association between intraplaque hemorrhage and disrupted plaque surface. RESULTS One hundred forty-nine carotid arteries in 78 patients could be used for the current analyses. Intraplaque hemorrhage and plaque ulcerations were more prevalent in symptomatic compared with contralateral vessels (hemorrhage, 38% versus 11%; P < .001; and ulcerations, 27% versus 7%; P = .001). Fissured fibrous cap was more prevalent in symptomatic compared with contralateral vessels (13% versus 4%; P = .06). After adjustment for age, sex, diabetes mellitus, and degree of stenosis, intraplaque hemorrhage was associated with disrupted plaque surface (OR, 3.13; 95% CI, 1.25-7.84) in all vessels. CONCLUSIONS Intraplaque hemorrhage is associated with disruption of the plaque surface in patients with a carotid artery stenosis of <70%. Serial studies are needed to investigate whether intraplaque hemorrhage indeed increases the risk of plaque rupture and subsequent ischemic stroke during follow-up.
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Affiliation(s)
- A C van Dijk
- From the Departments of Radiology (A.C.v.D., B.H., T.Z.,G.S., A.v.d.L.) Neurology (A.C.v.D., P.J.K.)
| | - M T B Truijman
- Departments of Radiology (M.T.B.T., M.E.K.) Clinical Neurophysiology (M.T.B.T.) Cardiovascular Research Institute Maastricht School for Cardiovascular Diseases (M.T.B.T., M.E.K.), Maastricht University Medical Center, Maastricht, the Netherlands
| | - B Hussain
- From the Departments of Radiology (A.C.v.D., B.H., T.Z.,G.S., A.v.d.L.)
| | - T Zadi
- From the Departments of Radiology (A.C.v.D., B.H., T.Z.,G.S., A.v.d.L.)
| | - G Saiedie
- From the Departments of Radiology (A.C.v.D., B.H., T.Z.,G.S., A.v.d.L.)
| | - A A J de Rotte
- Department of Radiology (A.A.J.d.R., J.H.), University Medical Center Utrecht, Utrecht, the Netherlands
| | - M I Liem
- Departments of Neurology (M.I.L., P.J.N.)
| | - A F W van der Steen
- Biomedical Engineering (A.F.W.v.d.S.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - M J A P Daemen
- Pathology (M.J.A.P.D.), Amsterdam Medical Center, Amsterdam, the Netherlands
| | | | | | - J Hendrikse
- Department of Radiology (A.A.J.d.R., J.H.), University Medical Center Utrecht, Utrecht, the Netherlands
| | - M E Kooi
- Departments of Radiology (M.T.B.T., M.E.K.) Cardiovascular Research Institute Maastricht School for Cardiovascular Diseases (M.T.B.T., M.E.K.), Maastricht University Medical Center, Maastricht, the Netherlands
| | - A van der Lugt
- From the Departments of Radiology (A.C.v.D., B.H., T.Z.,G.S., A.v.d.L.)
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Abstract
In this paper, we present the designing of the skip-lot sampling plan including the re-inspection called SkSP-R. The plan parameters of the proposed plan are determined through a nonlinear optimization problem by minimizing the average sample number satisfying both the producer's risk and the consumer's risks. The proposed plan is shown to perform better than the existing sampling plans in terms of the average sample number. The application of the proposed plan is explained with the help of illustrative examples.
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Hussain B, Sultana T, Sultana S, Iqbal Z, Nadeem S, Mahboob S. Habitat induced mutational effects and fatty acid profile changes in bottom dweller Cirrhinus mrigala inhabitant of river Chenab. Grasas y Aceites 2015. [DOI: 10.3989/gya.0833142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Saleh GM, Theodoraki K, Gillan S, Sullivan P, O'Sullivan F, Hussain B, Bunce C, Athanasiadis I. Response to Swampillai et al. Eye (Lond) 2014; 28:503-4. [PMID: 24556880 DOI: 10.1038/eye.2014.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- G M Saleh
- 1] NIHR Biomedical Research Centre at Moorfields Eye Hospital, NHS Foundation Trust, UCL Institute of Ophthalmology, London, UK [2] Clinical Tutorial Complex, Department of Education, Moorfields Eye Hospital, London, UK [3] School of Ophthalmology, The London Deanery, London, UK
| | - K Theodoraki
- Clinical Tutorial Complex, Department of Education, Moorfields Eye Hospital, London, UK
| | - S Gillan
- Clinical Tutorial Complex, Department of Education, Moorfields Eye Hospital, London, UK
| | - P Sullivan
- Clinical Tutorial Complex, Department of Education, Moorfields Eye Hospital, London, UK
| | - F O'Sullivan
- School of Ophthalmology, The London Deanery, London, UK
| | - B Hussain
- Clinical Tutorial Complex, Department of Education, Moorfields Eye Hospital, London, UK
| | - C Bunce
- Clinical Tutorial Complex, Department of Education, Moorfields Eye Hospital, London, UK
| | - I Athanasiadis
- Clinical Tutorial Complex, Department of Education, Moorfields Eye Hospital, London, UK
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Saleh GM, Theodoraki K, Gillan S, Sullivan P, O'Sullivan F, Hussain B, Bunce C, Athanasiadis I. The development of a virtual reality training programme for ophthalmology: repeatability and reproducibility (part of the International Forum for Ophthalmic Simulation Studies). Eye (Lond) 2013; 27:1269-74. [PMID: 23970027 DOI: 10.1038/eye.2013.166] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 07/04/2013] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To evaluate the variability of performance among novice ophthalmic trainees in a range of repeated tasks using the Eyesi virtual reality (VR) simulator. METHODS Eighteen subjects undertook three attempts of five cataract specific and generic three-dimensional tasks: continuous curvilinear capsulorhexis, cracking and chopping, cataract navigation, bimanual cataract training, anti-tremor. Scores for each attempt were out of a maximum of 100 points. A non-parametric test was used to analyse the data, where a P-value of <0.05 was considered statistically significant. RESULTS Highly significant differences were found between the scores achieved in the first attempt and that during the second (P<0.0001) and third (P<0.0001) but not between the second and third attempt (P=0.65). There was no significant variability in the overall score between the users (P=0.1104) or in the difference between their highest and lowest score (P=0.3878). Highly significant differences between tasks were shown both in the overall score (P=0.0001) and in the difference between highest and lowest score (P=0.003). CONCLUSION This study, which is the first to quantify reproducibility of performance in entry level trainees using a VR tool, demonstrated significant intra-novice variability. The cohort of subjects performed equally overall in the range of tasks (no inter-novice variability) but each showed that performance varies significantly with the complexity of the task when using this high-fidelity instrument.
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Affiliation(s)
- G M Saleh
- 1] NIHR Biomedical Research Centre at Moorfields Eye Hospital, NHS Foundation Trust, UCL Institute of Ophthalmology, London, UK [2] Moorfields Eye Hospital, London, UK [3] School of Ophthalmology, The London Deanery, London, UK
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Braulik GT, Bhatti ZI, Ehsan T, Hussain B, Khan AR, Khan A, Khan U, Kundi KU, Rajput R, Reichert AP, Northridge SP, Bhagat HB, Garstang R. Robust abundance estimate for endangered river dolphin subspecies in South Asia. ENDANGER SPECIES RES 2012. [DOI: 10.3354/esr00425] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Chatni S, Shine S, Sooraj V, Pande G, Rajesh G, Hussain B, Geetha M, Siyad I, Narayanan VA, Balakrishnan V. Esophageal pseudo-tattoo from ingested capsule. Indian J Gastroenterol 2008; 26:166. [PMID: 17986742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sanjeev Chatni
- Digestive Diseases Institute, Amrita Institute of Medical Sciences Research Center, Cochin, Kerala, India.
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Ansari NM, Houlihan L, Hussain B, Pieroni A. Antioxidant activity of five vegetables traditionally consumed by south-Asian migrants in Bradford, Yorkshire, UK. Phytother Res 2005; 19:907-11. [PMID: 16261524 DOI: 10.1002/ptr.1756] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Five vegetables traditionally consumed among South-Asian migrants in Bradford (Yorkshire, UK) were tested for their free radical scavenging activity (FRSA) in the DPPH (1,1-diphenyl-2-picrylhydrazil radical) screening assay (using extracts prepared both by cold maceration and also by boiling the plant in the solvent under reflux) and for their in vitro non-enzymatic inhibition of bovine brain lipid peroxidation. In both antioxidant assays a strong activity was shown by extracts derived from okra (Abelmoschus esculentus, Malvaceae) fruits and charungli (Caralluma edulis, Asclepiadaceae) aerial parts. Extracts from bitter melon (Momordica charantia, Cucurbitaceae) and angular loofah (Luffa acutangula) showed a significant difference in the FRSA between the extract obtained by using cold maceration and that prepared by boiling the plant in the solvent under reflux, suggesting the chemical composition of the plant changed during the heating process, leading to an increase in the amount of antioxidant components. These findings confirm the great interest of the nutraceutical sciences in extracts of Caralluma edulis, whose phytochemistry and phytopharmacology should be investigated further in order to detect possible phytotherapeutic uses in the prevention of ageing related diseases (ARDs) and Alzheimer disease (AD).
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Affiliation(s)
- N M Ansari
- School of Pharmacy (School of Life Sciences), University of Bradford, Richmond Road, Bradford, West Yorkshire, Bradford BD7 1DP, UK
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Syam P, Hussain B, Hutchinson C. Mixed infection (Pseudomonas and coagulase negative staphylococci) microbial keratitis associated with extended wear silicone hydrogel contact lens. Br J Ophthalmol 2004; 88:579. [PMID: 15031181 PMCID: PMC1772095 DOI: 10.1136/bjo.2002.015776] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
OBJECTIVES To determine whether the decline in selenium intake and selenium status in men in the West of Scotland might be a contributory factor to male subfertility. PATIENTS AND METHODS Two semen samples were collected from patients attending a subfertility clinic and those patients with samples showing reduced motility were invited to participate in an ethically approved double-blind clinically controlled trial with informed consent. Sixty-nine patients were recruited and received either placebo, selenium alone or selenium plus vitamins A, C and E daily for 3 months. A further semen sample was collected at the end of the trial. Plasma selenium status was determined at the beginning and end of the trial period, as was total sperm density and motility. RESULTS Plasma selenium concentrations were significantly (P < 0.001) higher in both selenium-treated groups than in controls. No significant effect of treatment on sperm density was recorded. Sperm motility increased in both selenium-treated groups, in contrast to a slight decline in the placebo group, but the difference was not significant. However, as the provision of additional vitamins had no effect on any variable measured it was considered justified to combine the two selenium-treated groups and compare them with the placebo treatment. On this basis, selenium treatment significantly (P < 0.002) increased plasma selenium concentrations and sperm motility (P = 0.023) but sperm density was again unaffected. Five men (11%) achieved paternity in the treatment group, in contrast to none in the placebo group. CONCLUSION This trial confirms the result of an earlier study, that selenium supplementation in subfertile men with low selenium status can improve sperm motility and the chance of successful conception. However, not all patients responded; 56% showed a positive response to treatment. The low selenium status of patients not supplemented again highlights the inadequate provision of this essential element in the Scottish diet.
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Affiliation(s)
- R Scott
- Department of Urology, Glasgow Royal Infirmary, UK
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Abstract
Chickpea cultivars CM-68, C-44, Kabuli, CM-72 and 6153 were analysed for phytic acid, phytate phosphorus and total phosphorus. The effect of roasting and autoclaving on these constituents of whole seed and cotyledons was determined. The data revealed that roasting and autoclaving significantly decreased (P less than 0.05) the phytic acid of chickpea cultivars. Phytic acid of whole seed was reduced to a range value of 16-60% and 16-64% by roasting and autoclaving respectively depending upon the cultivar. In the cotyledon, the phytic acid was reduced to a range value of 32-68% and 18-68% during roasting and autoclaving respectively. Similar effect of these treatments was observed in phytate phosphorus however, total phosphorus was little affected.
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Affiliation(s)
- B Hussain
- Department of Food Science and Technology, NWFP Agricultural University, Peshawar, Pakistan
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Hossain MA, Rahman MT, Rasul G, Hursthouse MB, Hussain B. A 1,1,3,3-tetraphenyl-1,3-disiloxanediol pyridinium chloride lattice complex. Acta Crystallogr C 1988. [DOI: 10.1107/s0108270188002276] [Citation(s) in RCA: 11] [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: 11/10/2022] Open
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Hussain B, Gbadamosi SG, Siddique IH. Serological studies on leptospirosis in cattle in east central Alabama. Can J Comp Med 1978; 42:373-5. [PMID: 567520 PMCID: PMC1277654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Serological surveys of leptospiral antibodies in cattle were carried out in Macon and the surrounding counties of East Central Alabama. A total of 286 bovine serum samples were screened for the presence of antibodies against live antigens from twelve pathogenic leptospiral serotypes using a microscopic agglutination test. The most frequently encountered serotypes were Leptospira hardjo (47%), Leptospira wolffi (34%), Leptospira canicola (12%), Leptospira pomona (10%) and Leptospira ballum (10%). Leptospira autumnalis, Leptospira grippotyphosa, Leptospira icterohemorrhagiae, Leptospira pyrogenes and Leptospira tarassovi were observed in less than 5% of the samples.
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