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Ezuber H, Alshater A, Nisar SO, Gonsalvez A, Aslam S. Effect of Surface Finish on the Pitting Corrosion Behavior of Sensitized AISI 304 Austenitic Stainless Steel Alloys in 3.5% NaCl Solutions. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2017. [DOI: 10.3103/s1068375518010039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jennings DE, Flasar FM, Kunde VG, Nixon CA, Segura ME, Romani PN, Gorius N, Albright S, Brasunas JC, Carlson RC, Mamoutkine AA, Guandique E, Kaelberer MS, Aslam S, Achterberg RK, Bjoraker GL, Anderson CM, Cottini V, Pearl JC, Smith MD, Hesman BE, Barney RD, Calcutt S, Vellacott TJ, Spilker LJ, Edgington SG, Brooks SM, Ade P, Schinder PJ, Coustenis A, Courtin R, Michel G, Fettig R, Pilorz S, Ferrari C. Composite infrared spectrometer (CIRS) on Cassini. APPLIED OPTICS 2017; 56:5274-5294. [PMID: 29047582 DOI: 10.1364/ao.56.005274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/25/2017] [Indexed: 06/07/2023]
Abstract
The Cassini spacecraft orbiting Saturn carries the composite infrared spectrometer (CIRS) designed to study thermal emission from Saturn and its rings and moons. CIRS, a Fourier transform spectrometer, is an indispensable part of the payload providing unique measurements and important synergies with the other instruments. It takes full advantage of Cassini's 13-year-long mission and surpasses the capabilities of previous spectrometers on Voyager 1 and 2. The instrument, consisting of two interferometers sharing a telescope and a scan mechanism, covers over a factor of 100 in wavelength in the mid and far infrared. It is used to study temperature, composition, structure, and dynamics of the atmospheres of Jupiter, Saturn, and Titan, the rings of Saturn, and surfaces of the icy moons. CIRS has returned a large volume of scientific results, the culmination of over 30 years of instrument development, operation, data calibration, and analysis. As Cassini and CIRS reach the end of their mission in 2017, we expect that archived spectra will be used by scientists for many years to come.
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Morrissey O, Xie R, Schaenman J, Husain S, Mooney M, Nakatani T, Kormos R, Gómez-Bueno M, Aslam S, Pya Y, Hannan M. Epidemiology of Fungal Infections (FI) in Mechanical Circulatory Support Device (MCSD) Recipients: Analysis of IMACS Registry 2013-2015. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Naguib N, Matar M, Aslam S, Thippeswamy K, Haray PN, Masoud AG. On-table lavage in laparoscopic management of closed-loop large-bowel obstruction - a video vignette. Colorectal Dis 2017; 19:398. [PMID: 28181375 DOI: 10.1111/codi.13623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 11/24/2016] [Indexed: 02/08/2023]
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Aslam S, Delgado‐Angulo EK, Bernabé E. Perceived learned skills and professional development of graduates from a master in dental public health programme. EUROPEAN JOURNAL OF DENTAL EDUCATION : OFFICIAL JOURNAL OF THE ASSOCIATION FOR DENTAL EDUCATION IN EUROPE 2017; 21:1-5. [PMID: 26272511 PMCID: PMC5248589 DOI: 10.1111/eje.12167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Accepted: 07/13/2015] [Indexed: 06/04/2023]
Abstract
INTRODUCTION Assessing the impact of a training programme is important for quality assurance and further development. It also can helps with accountability and marketing purposes. This study evaluated the impact of King's College London (KCL) Master of Science programme in Dental Public Health in terms of graduates' perceived learned skills and professional development. METHODS An online questionnaire was sent to individuals who completed successfully the KCL Master of Science programme in Dental Public Health and had a valid email address. Participants provided information on demographic characteristics, perceived learned skills (intellectual, practical and generic) and professional development (type of organisation, position in the organisation and functions performed at work before and after the programme). Learned skills' scores were compared by demographic factors in multiple linear regression models, and the distribution of responses on career development was compared using nonparametric tests for paired groups. RESULTS Although all scores on learned skills were on the favourable side of the Likert scale, graduates reported higher scores for practical skills, followed by intellectual and generic skills. No differences in scores were found by sex, age, nationality or time since graduation. In terms of career development, there were significantly higher proportions of graduates working in higher education institutions and taking leadership/managerial roles in organisations as well as greater number and variety of functions at work after than before the programme. CONCLUSION This online survey shows that the programme has had a positive impact on graduates in terms of perceived learned skills and professional development.
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Yip K, Conibear J, Woolf D, Tarver K, Willis B, Hall S, Sun F, Kuhan H, Lambourne B, Piskilidis P, Kussaibati R, Martin L, Satar NA, Gray C, Khan A, Doherty G, Prewett S, Smith M, Dancey G, Patterson D, Rimmer Y, Hollingdale A, Ingle C, Tasigiannopoulos Z, Aslam S, Waite K, Polychronis A, Ghafoor Q, Baijal S, Newsom-Davis T, Shah R, Forster M, Mulatero C, Greystoke A, Postmus P, Blackhall F, Gilligan D. 62: A retrospective multicentre audit of outcome among patients with anaplastic lymphoma kinase (ALK) gene rearrangement positive non-small cell lung cancer (NSCLC) who have been treated with crizotinib in England. Lung Cancer 2017. [DOI: 10.1016/s0169-5002(17)30112-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dan JM, Crespo M, Silveira FP, Kaplan R, Aslam S. Mycobacterium bovis hip bursitis in a lung transplant recipient. Transpl Infect Dis 2016; 18:120-4. [PMID: 26671334 DOI: 10.1111/tid.12491] [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] [Received: 07/20/2015] [Revised: 10/07/2015] [Accepted: 11/11/2015] [Indexed: 02/04/2023]
Abstract
We present a report of extrapulmonary Mycobacterium bovis infection in a lung transplant recipient. M. bovis is acquired predominantly by zoonotic transmission, particularly from consumption of unpasteurized foods. We discuss epidemiologic exposure, especially as relates to the Mexico-US border, clinical characteristics, resistance profile, and treatment.
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Anjum H, Bokhari SG, Khan MA, Awais M, Mughal ZU, Shahzad HK, Ijaz F, Siddiqui MI, Khan IU, Chaudhry AS, Akhtar R, Aslam S, Akbar H, Asif M, Maan MK, Khan MA, Noor A, Khan WA, Ullah A, Hayat MA. Comparative efficacy of Prolene and Prolene-Vicryl composite mesh for experimental ventral hernia repair in dogs. IRANIAN JOURNAL OF VETERINARY RESEARCH 2016; 17:78-83. [PMID: 27822231 PMCID: PMC5090135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 01/02/2016] [Accepted: 02/09/2016] [Indexed: 06/06/2023]
Abstract
In this study, efficacy of two hernia mesh implants viz. conventional Prolene and a novel Prolene-Vicryl composite mesh was assessed for experimental ventral hernia repair in dogs. Twelve healthy mongrel dogs were selected and randomly divided into three groups, A, Band C (n=4). In all groups, an experimental laparotomy was performed; thereafter, the posterior rectus sheath and peritoneum were sutured together, while, a 5 × 5 cm defect was created in the rectus muscle belly and anterior rectus sheath. For sublay hernioplasty, the hernia mesh (Prolene: group A; Prolene-Vicryl composite mesh: group B), was implanted over the posterior rectus sheath. In group C (control), mesh was not implanted; instead the laparotomy incision was closed after a herniorrhaphy. Post-operative pain, mesh shrinkage and adhesion formation were assessed as short term complications. Post-operatively, pain at surgical site was significantly less (P<0.001) in group B (composite mesh); mesh shrinkage was also significantly less in group B (21.42%, P<0.05) than in group A (Prolene mesh shrinkage: 58.18%). Group B (composite mesh) also depicted less than 25% adhesions (Mean ± SE: 0.75 ± 0.50 scores, P≤0.013) when assessed on the basis of a Quantitative Modified Diamond scale; a Qualitative Adhesion Tenacity scale also depicted either no adhesions (n=2), or, only flimsy adhesions (n=2) in group B (composite mesh), in contrast to group A (Prolene), which manifested greater adhesion formation and presence of dense adhesions requiring blunt dissection. Conclusively, the Prolene-Vicryl composite mesh proved superior to the Prolene mesh regarding lesser mesh contraction, fewer adhesions and no short-term follow-up complications.
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Aslam S, Jessop S, Jeffs Y, Bulusu V. 67 Aggressive and unusual metastatic relapses in resected epidermal growth factor receptor (EGFR) mutant adenocarcinoma of lung: biology or chance occurrence? Lung Cancer 2016. [DOI: 10.1016/s0169-5002(16)30084-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Burton R, Tomek J, Aslam S, Bilton S, Larsen H, Sharkey A, Stephens G, Mann E, Paterson D, Bub G. Sympathetic stellate neurons increases cardiac conduction velocity and alters wave patterns in a myocyte-neuron co-culture model system. Auton Neurosci 2015. [DOI: 10.1016/j.autneu.2015.07.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kwok CS, Aslam S, Kontopantelis E, Myint PK, Zaman MJS, Buchan I, Loke YK, Mamas MA. Influenza, influenza-like symptoms and their association with cardiovascular risks: a systematic review and meta-analysis of observational studies. Int J Clin Pract 2015; 69:928-37. [PMID: 25940136 PMCID: PMC7165588 DOI: 10.1111/ijcp.12646] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
AIMS To synthesise the evidence relating influenza and influenza-like symptoms to the risks of myocardial infarction (MI), heart failure (HF) and stroke. METHODS We conducted a systematic review and meta-analysis of the evidence relating influenza and influenza-like symptoms to the risks of MI, HF and stroke. We systematically searched all MEDLINE and EMBASE entries up to August 2014 for studies of influenza vs. the cardiovascular outcomes above. We conducted random effects meta-analysis using inverse variance method for pooled odds ratios (OR) and evaluated statistical heterogeneity using the I(2) statistic. RESULTS We identified 12 studies with a total of 84,003 participants. The pooled OR for risk of MI vs. influenza (serologically confirmed) was 1.27 (95% CI, confidence interval 0.54-2.95), I(2) = 47%, which was significant for the only study that adjusted for confounders (OR 5.50, 95% CI 1.31-23.13). The pooled OR for risk of MI vs. influenza-like symptoms was 2.17 (95% CI 1.68-2.80), I(2) = 0%, which was significant for both unadjusted (OR 2.23, 95% CI 1.65-3.01, five studies) and adjusted studies (OR 2.01, 95% CI 1.24-3.27, two studies). We found one study that evaluated stroke risk, one study in patients with HF, and one that evaluated mortality from MI - all of these studies suggested increased risks of events with influenza-like symptoms. CONCLUSIONS There is an association between influenza-like illness and cardiovascular events, but the relationship is less clear with serologically diagnosed influenza. We recommend renewed efforts to apply current clinical guidelines and maximise the uptake of annual influenza immunisation among patients with cardiovascular diseases, to decrease their risks of MI and stroke.
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Eliwan HO, Watson RWG, Aslam S, Regan I, Philbin B, O'Hare FM, O'Neill A, Preston R, Blanco A, Grant T, Nolan B, Smith O, Molloy EJ. Neonatal brain injury and systemic inflammation: modulation by activated protein C ex vivo. Clin Exp Immunol 2015; 179:477-84. [PMID: 25204207 DOI: 10.1111/cei.12453] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2014] [Indexed: 01/04/2023] Open
Abstract
Infection and inflammation can be antecedents of neonatal encephalopathy (NE) and increase the risk of neurological sequelae. Activated protein C (APC) has anti-coagulant and anti-inflammatory effects and provides neuroprotection in brain and spinal cord injury. We examined neutrophil and monocyte responses to lipopolysaccharide (LPS) in infants with NE compared with healthy adult and neonatal controls, and also studied the effect of APC. Whole blood was incubated with LPS and APC and Toll-like receptor (TLR)-4 (LPS recognition), CD11b expression (activation) and intracellular reactive oxygen intermediate (ROI; function) release from neutrophils and monocytes was examined by flow cytometry serially from days 1 to 7. We found a significant increase in neutrophil ROI in infants with NE on day 3 following LPS compared to neonatal controls and this augmented response was reduced significantly by APC. Neutrophil and monocyte CD11b expression was increased significantly on day 1 in infants with NE compared to neonatal controls. LPS-induced neutrophil TLR-4 expression was increased significantly in infants with NE on days 3 and 7 and was reduced by APC. LPS-induced monocyte TLR-4 was increased significantly in infants with NE on day 7. Neutrophil and monocyte activation and production of ROIs may mediate tissue damage in infants with NE. APC modified LPS responses in infants with NE. APC may reduce the inflammatory responses in NE and may ameliorate multi-organ dysfunction. Further study of the immunomodulatory effects of protein C may be warranted using mutant forms with decreased bleeding potential.
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Aslam S, Aslam A, Ijaz T. Antimicobial susceptibility pattern of the isolates from bacterial keratitis and endophthalmitis in a tertiary care hospital of Pakistan. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Ijaz T, Ijaz S, Aslam S, Ahmad B, Raja S. A laboratory based study of dengue epidemic in the city of Lahore during year 2011. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Aslam S, Sajid I. Antimicrobial potential of halophilic actinomycetes isolated from a saline lake against various multi drug resistant bacterial pathogens causing ventilator associated pneumonia. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Maasoumy B, Cobb B, Bremer B, Luk K, Halfon P, Aslam S, Manns MP, Cornberg M, Wedemeyer H. Detection of low HCV viraemia by repeated HCV RNA testing predicts treatment failure to triple therapy with telaprevir. Aliment Pharmacol Ther 2014; 39:85-92. [PMID: 24206524 DOI: 10.1111/apt.12544] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 09/12/2013] [Accepted: 10/12/2013] [Indexed: 01/07/2023]
Abstract
BACKGROUND Early on-treatment virological response is one of the most important predictors for sustained virological response (SVR) to treatment of chronic hepatitis C virus (HCV) genotype 1 infection with triple therapy including HCV protease inhibitors (PI). Treatment duration (24 vs. 48 weeks) is based on HCV RNA results at weeks 4 and 12 of PI therapy when HCV RNA must be 'undetectable' to allow shorter therapy. AIM To analyse the reliability of HCV RNA measurements at key decision time points (weeks 4 and 12) and the predictive value of concordant or discordant assay results for SVR. METHODS Weeks 4 and 12 samples of patients receiving telaprevir-containing triple therapy were initially tested with the AmpliPrep/COBAS-TaqMan_HCV-Test-v1.0 (limit of detection; LOD = 15IU/mL) and retested with the AmpliPrep/COBAS-TaqMan_HCV-Test-v2.0 (LOD = 15IU/mL) and the High_Pure/COBAS-TaqMan_HCV-Test-v2.0 (LOD = 20IU/mL). RESULTS Concordance among the three test results in classifying samples as HCV RNA 'undetectable' or 'detectable' was only 55% at week 4, but 85% at week 12. Retesting of 'undetectable' week 4 samples with the respective other assays revealed positive HCV RNA results in 32-50%. In 30%, HCV RNA was 'undetectable' by all three tests at week 4 and all of these patients achieved SVR. In contrast, treatment failure occurred in 62% of patients with at least one 'detectable' result, including cases with one or two other 'undetectable' tests at week 4. CONCLUSIONS A single 'undetectable' HCV RNA result at week 4 is not always associated with achieving SVR. Repeated testing in difficult-to-treat patients may identify those at risk for treatment failure.
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Floeck M, Aslam S, Schaetz G, Mayr E, Franz S. Ultrasonographic assessment of the spleen in 60 healthy sheep. N Z Vet J 2012; 61:165-7. [PMID: 23134109 DOI: 10.1080/00480169.2012.731683] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AIM To evaluate the sonographic appearance, size, location and shape of the spleen in 60 healthy sheep. METHODS A 7.5 MHz linear scanner was used to examine the location, extent and appearance of the spleen from the left side of the sheep, in intercostal spaces (ICS) 8-12 and caudal of the last rib. RESULTS The ultrasonographic appearance of the splenic parenchyma was homogeneous with a thin, smooth echogenic capsule. The spleen could be visualized in intercostal spaces 9-12 in all sheep, in intercostal space 8 in 25/60 sheep (42%) and caudal of the last rib in 24/60 sheep (40%). In intercostal spaces 8-12 and caudal of the last rib the spleen was visible in 16/60 sheep (27 %). The distance from the dorsal margin of the spleen to the spinous processes of the thoracic vertebrae was greatest in the 8th intercostal space: mean 19.32 (SD 2.76) cm and smallest in the 12th intercostal space: mean 6.61 (SD 1.94) cm. The dorsoventral splenic extent was greatest in the 11th intercostal space: mean 13.69 (SD 2.2) cm and smallest in the 8th intercostal space: mean 7.13 (SD 2.5) cm. The thickness of the spleen ranged from 21 (SD 9.0) mm in the 8th intercostal space to 49 (SD 7.0) mm in the 11th intercostal space. The mean vessel diameter was 1.9 (SD 0.7) mm. Spleen size did not correlate with age, body weight, or thoracic and abdominal circumference. CONCLUSIONS Ultrasonography is a useful, straightforward and non-invasive method for evaluation of the spleen in sheep. CLINICAL RELEVANCE These findings provide information which can be used as a reference for sonographic spleen examination and diagnosis of splenic lesions in sheep.
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Aslam S, King M, Churn M. EP-1055 INVESTIGATING LONGCOURSE CHEMORADIOTHERAPY REGIMEN FOR RECTAL CANCER WITH BOSSETT, WEEKLY 5FU AND CAPECITABINE. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71388-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Hitchings AW, Hayes L, Picton G, Turner L, Cull R, Aslam S, Archer JRH, Srivastava SA, Baker EH. P259 Effects of metformin on clinical outcome in patients hospitalised for COPD exacerbations: a retrospective cohort study. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-201054c.259] [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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Aslam S, Tschida S, Lal LS, Khan TT, Shrank WH, Bhattarai GR, Montague- Clouse JC, Newcomer LN. Managing specialty medication services through a network of specialty pharmacies: A case of oral oncology medications. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.6132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Aslam S, Jena R, Jefferies S, Hoole AF, Dean J, Fairfoul J, Burnet N. Positional Correction Data Prove the Absolute Necessity for Image Guidance in High Dose Radiotherapy for Spinal Chordoma. Clin Oncol (R Coll Radiol) 2011. [DOI: 10.1016/j.clon.2011.01.393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Idrees M, Aslam S. Prevent major failures and accidents with well-trained and empowered operators. PROCESS SAFETY PROGRESS 2009. [DOI: 10.1002/prs.10348] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Truy E, Bossard D, Coudert JL, Aslam S, Froehlich P, Trunde F, Disant F. [Evaluation of 3D imaging software to study computed tomography images of middle ear defects]. ANNALES D'OTO-LARYNGOLOGIE ET DE CHIRURGIE CERVICO FACIALE : BULLETIN DE LA SOCIETE D'OTO-LARYNGOLOGIE DES HOPITAUX DE PARIS 2009; 126:243-9. [PMID: 19914597 DOI: 10.1016/j.aorl.2009.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2008] [Accepted: 09/15/2009] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Evaluate the contribution of original 3D reconstruction software based on the principle of region growing segmentation of CT images to diagnosis of ossicular malformations of the middle ear. METHOD Prospective study on a population of ten patients presenting uni- or bilateral transmission deafness. Twenty ears were studied using multislice CT. All the data were treated using original software segmentation based on the principle of region growing segmentation. The 3D images were compared with the original CT slices to judge the software's potential contribution to the management of these patients. RESULTS All the images obtained were deemed of sufficient diagnostic quality. The two normal ears on the CT slices were also found to be normal on the 3D images. Typical CT images of otospongiosis found in two patients were not visible on the 3D images. The 18 ossicular malformations were well analyzed on the images obtained, which also provided better visualization of the abnormalities and associated lesions (particularly the anomalies in facial nerve position), thus providing quality surgical planning as judged by the surgeon. CONCLUSION The image reconstruction method studied, using region growing segmentation seems to be, in this limited sample, a useful complement to classical CT images in the study of constitutional abnormalities of the middle ear.
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Aslam S, Carroll K, Naz B, Alao A. Valacyclovir-associated Psychosis and Manic Symptoms in an Adolescent Female with Genital Herpes Simplex: A Case Report. Eur Psychiatry 2009. [DOI: 10.1016/s0924-9338(09)71350-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
We report the first case of valacyclovir-induced psychosis with symptoms of mania in an adolescent female with no psychiatric history. the patient presented with irritable mood, decreased need for sleep, auditory hallucinations, and grandiose delusions 72 hours after starting oral valacyclovir for newly acquired genital herpes. She was on no other medications. Delirium was ruled out by history and physical, urine toxicology was negative, head CAT scan was unremarkable, as were thyroid hormones and basic laboratories. the symptoms continued after stopping the valacyclovir, but improved with risperidone. after withdrawal of risperidone, the patient has been symptom free for 4 months. According to the Naranjo Adverse Drug Reaction (ADR) probability scale, this case report scores as a possible drug reaction. Although there are no reports of neuropsychiatric side effects with valacyclovir, there are for the medications structural analogs, acyclovir and ganciclovir. These cases were primarily in elderly patients who are immunocompromised, have renal dysfunction and receive the medication by the intravenous route. other anti-viral medications, such as interferon, have also been shown to induce mood symptoms, including depression and mania. Genital Herpes is a common and painful infection, with no known cure. Three medications, acyclovir, valacyclovir and famciclovir, have been shown to reduce the duration and severity of the disease. Clinicians should be aware that Valacyclovir and its analogs may induce psychosis with manic symptoms in young, healthy patients with no previous psychiatric history. Further research is needed to demonstrate a clear association, causal relationship and possible mechanism for the reaction.
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Tan K, Dawkins A, Aslam S, Page R, Cooper R. MRI radiological assessment of distance between metacarpal bones and flexor tendons: Significance in screw fixation of metacarpal fractures. J Plast Reconstr Aesthet Surg 2007. [DOI: 10.1016/j.bjps.2007.01.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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