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Brichko L, Van Breugel L, Underhill A, Tran H, Mitra B, Cameron P, Smit D, Giles ML, McCreary D, Paton A, O'Reilly G. The Impact of COVID-19 Vaccinations on Emergency Department Presentations. Emerg Med Australas 2022; 34:913-919. [PMID: 35475322 PMCID: PMC9111314 DOI: 10.1111/1742-6723.14012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 04/07/2022] [Accepted: 04/21/2022] [Indexed: 11/29/2022]
Abstract
Objective The aim of the present study was to describe the burden of patients presenting to the ED with symptoms occurring after receiving a COVID‐19 vaccination. Methods This was a retrospective cohort study performed over a 4‐month period across two EDs. Participants were eligible for inclusion if it was documented in the ED triage record that their ED attendance was associated with the receipt of a COVID‐19 vaccination. Data regarding the type of vaccine (Comirnaty or ChAdOx1) were subsequently extracted from their electronic medical record. Primary outcome was ED length of stay (LOS) and secondary outcomes included requests for imaging and ED disposition destination. Results During the study period of 22 February 2021 to 21 June 2021, 632 patients were identified for inclusion in the present study, of which 543 (85.9%) had received the ChAdOx1 vaccination. The highest proportion of COVID‐19 vaccine‐related attendances occurred in June 2021 and accounted for 21 (8%) of 262 total daily ED attendances. Patients who had an ED presentation related to ChAdOx1 had a longer median ED LOS (253 vs 180 min, P < 0.001) compared to Comirnaty and a higher proportion had haematology tests and imaging requested in the ED. Most patients (n = 588, 88.8%) were discharged home from the ED. Conclusion There was a notable proportion of ED attendances related to recent COVID‐19 vaccination administration, many of which were associated with lengthy ED stays and had multiple investigations. In the majority of cases, the patients were able to be discharged home from the ED.
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Affiliation(s)
- L Brichko
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia.,Emergency Department, Cabrini Hospital, Melbourne, Australia.,School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia
| | - L Van Breugel
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia
| | - A Underhill
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia
| | - H Tran
- Haematology Department, Alfred Hospital, Melbourne, Australia.,Central Clinical School, Monash University, Melbourne, Australia
| | - B Mitra
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia.,School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia.,National Trauma Research Institute, Melbourne, Australia
| | - P Cameron
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia.,School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia
| | - D Smit
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia.,School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia.,National Trauma Research Institute, Melbourne, Australia
| | - M L Giles
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, Australia.,Department of Infectious Diseases, Alfred Hospital, Melbourne, Australia
| | - D McCreary
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia.,School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia
| | - A Paton
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia.,Adult Retrieval Victoria, Melbourne, Australia
| | - G O'Reilly
- The Alfred Emergency & Trauma Centre, Alfred Hospital, Melbourne, Australia.,School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia.,National Trauma Research Institute, Melbourne, Australia
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2
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Finnegan P, Fitzgerald M, Smit D, Martin K, Mathew J, Varma D, Lim A, Scott S, Williams K, Kim Y, Mitra B. Video-tube thoracostomy in trauma resuscitation: A pilot study. Injury 2019; 50:90-95. [PMID: 30143233 DOI: 10.1016/j.injury.2018.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 08/02/2018] [Accepted: 08/10/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Complications related to incorrect positioning of tube thoracostomy (TT) have been reported to be as high as 30%. The aim of this study was to assess the feasibility of flexible videoscope guided placement of a pre-loaded chest tube, permitting direct intrapleural visualization and placement (Video-Tube Thoracostomy [V-TT]). METHODS A prospective, single centre, phase 1 pilot study with a parallel control group was undertaken. The population studied were adult thoracic trauma patients requiring emergency TT who were haemodynamically stable. The intervention performed was VTT. Patients in the control group underwent conventional TT. The primary outcome was tube position as defined by a consultant radiologist's interpretation of chest x-ray (CXR) or CT. The trial was registered with ANZCTR.org.au (ACTRN: 12,615,000,870,550). RESULTS There were 37 patients enrolled in the study - 12 patients allocated to the VTT intervention group and 25 patients allocated to conventional TT. Mean age of participants was 48 years (SD 15) in intervention group and 46 years (SD 15) years in the control group. In the VTT group all patients were male; the indications were pneumothorax (83%), haemothorax (8%) and haemopneumothorax (8%). The median injury severity score was 23 (16-28). There were 1 positional and 1 insertional complications. In the control group 72% of patients were male, the indications were pneumothorax (56%), haemothorax (4%) and haemopneumothorax (40%). The median injury severity score was 24 (14-36). There were 8 (32%) positional complications and no insertional complications. CONCLUSION V-TT was demonstrated to be a feasible alternative to conventional thoracostomy and merits further investigation.
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Affiliation(s)
- P Finnegan
- Trauma Service, The Alfred Hospital, 55 Commercial Road, Melbourne, VIC, 3004, Australia; National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia; Emergency & Trauma Centre, The Alfred Hospital, Melbourne, Australia.
| | - M Fitzgerald
- Trauma Service, The Alfred Hospital, 55 Commercial Road, Melbourne, VIC, 3004, Australia; National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia; Surgical Services, The Alfred Hospital, Melbourne, Australia; Monash University, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia
| | - D Smit
- National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia; Emergency & Trauma Centre, The Alfred Hospital, Melbourne, Australia; Monash University, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia
| | - K Martin
- Trauma Service, The Alfred Hospital, 55 Commercial Road, Melbourne, VIC, 3004, Australia; National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia; Surgical Services, The Alfred Hospital, Melbourne, Australia; Monash University, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia
| | - J Mathew
- Trauma Service, The Alfred Hospital, 55 Commercial Road, Melbourne, VIC, 3004, Australia; National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia; Emergency & Trauma Centre, The Alfred Hospital, Melbourne, Australia; Surgical Services, The Alfred Hospital, Melbourne, Australia; Monash University, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia
| | - D Varma
- Department of Radiology, The Alfred Hospital, Melbourne, Australia
| | - A Lim
- National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia
| | - S Scott
- Trauma Service, The Alfred Hospital, 55 Commercial Road, Melbourne, VIC, 3004, Australia; Emergency & Trauma Centre, The Alfred Hospital, Melbourne, Australia
| | - K Williams
- Trauma Service, The Alfred Hospital, 55 Commercial Road, Melbourne, VIC, 3004, Australia; National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia
| | - Y Kim
- Trauma Service, The Alfred Hospital, 55 Commercial Road, Melbourne, VIC, 3004, Australia; National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia; Monash University, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia
| | - B Mitra
- National Trauma Research Institute, The Alfred Hospital, Melbourne, Australia; Emergency & Trauma Centre, The Alfred Hospital, Melbourne, Australia; Monash University, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia
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Van Dam L, Smit D, Wildschut B, Branje S, Rhodes J, Assink M, Stams G. Does Natural Mentoring Matter? A Multilevel Meta-analysis on the Association Between Natural Mentoring and Youth Outcomes. Am J Community Psychol 2018; 62:203-220. [PMID: 29691865 PMCID: PMC6174947 DOI: 10.1002/ajcp.12248] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In this meta-analytic review, we examined the relation between natural mentoring and youth outcomes in four domains: academic and vocational functioning, social-emotional development, physical health, and psychosocial problems. Natural mentoring relationships are thought to foster positive youth development and buffer against the risks associated with the tumultuous years of adolescence. Two separate meta-analyses were conducted on the presence of a natural mentor and the quality of the natural mentoring relationship, including thirty studies from 1992 to present. The findings indicated that the presence of a natural mentor was significantly associated with positive youth outcomes (r = .106). A larger effect size was found for the quality of the natural mentoring relationship in terms of relatedness, social support, and autonomy support (r = .208). The largest effect sizes were found for social-emotional development and academic and vocational functioning. Risk-status (e.g., teenage mothers, homeless youth, youth in foster care, and youth of alcoholic parents) did not moderate the relation between presence and quality of natural mentoring relationships and youth outcomes, which may indicate that natural mentors are generally beneficial for all youth regardless of risk-status. Implications for theory and practice concerning the quality of the natural mentoring relationship are discussed.
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Affiliation(s)
- L. Van Dam
- Spirit Youth Care AmsterdamUniversity of AmsterdamAmsterdamThe Netherlands
| | - D. Smit
- Department of Child Development and EducationUniversity of AmsterdamAmsterdamThe Netherlands
| | - B. Wildschut
- Department of Child Development and EducationUniversity of AmsterdamAmsterdamThe Netherlands
| | | | - J.E. Rhodes
- University of Massachusetts BostonBostonMAUSA
| | - M. Assink
- Department of Child Development and EducationUniversity of AmsterdamAmsterdamThe Netherlands
| | - G.J.J.M. Stams
- Department of Child Development and EducationUniversity of AmsterdamAmsterdamThe Netherlands
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Abstract
In April 2003, rumours spread that smoking protected patients from developing SARS (Severe Acute Respiratory Syndrome). In a case-control study of 447 patients who attended a SARS screening clinic, 63 patients were admitted with SARS. Although a higher proportion of SARS cases were non-smokers than smokers, the adjusted odds of non-smokers with SARS was 1.7 (p=0.54). There is no evidence that smoking protects patients from developing SARS.
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Brichko L, Schneider H, Seah J, Smit D, Stevens J, Mitra B. Rapid and Safe Discharge From the Emergency Department: A Single Troponin to Exclude Acute Myocardial Infarction. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.593] [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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Affiliation(s)
- D Smit
- Department of Ophthalmology Faculty of Health Sciences, Stellenbosch University, Tygerberg Hospital
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7
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Barker AL, Cameron PA, Hill KD, Flicker L, Haines TP, Lowthian JA, Waldron N, Arendts G, Redfern J, Forbes A, Brand CA, Etherton-Beer CD, Hill AM, Hunter P, Nyman SR, Smit D. RESPOND--A patient-centred programme to prevent secondary falls in older people presenting to the emergency department with a fall: protocol for a multicentre randomised controlled trial. Inj Prev 2014; 21:e1. [PMID: 24958769 DOI: 10.1136/injuryprev-2014-041271] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Participation in falls prevention activities by older people following presentation to the emergency department (ED) with a fall is suboptimal. This randomised controlled trial (RCT) will test the RESPOND programme, an intervention designed to improve older persons' participation in falls prevention activities through delivery of patient-centred education and behaviour change strategies. DESIGN AND SETTING A RCT at two tertiary referral EDs in Melbourne and Perth, Australia. PARTICIPANTS 528 community-dwelling people aged 60-90 years presenting to the ED with a fall and discharged home will be recruited. People who require an interpreter or hands-on assistance to walk; live in residential aged care or >50 km from the trial hospital; have terminal illness, cognitive impairment, documented aggressive behaviour or a history of psychosis; are receiving palliative care or are unable to use a telephone will be excluded. METHODS Participants will be randomly allocated to the RESPOND intervention or standard care control group. RESPOND incorporates (1) a home-based risk factor assessment; (2) education, coaching, goal setting and follow-up telephone support for management of one or more of four risk factors with evidence of effective interventions and (3) healthcare provider communication and community linkage delivered over 6 months. Primary outcomes are falls and fall injuries per person-year. DISCUSSION RESPOND builds on prior falls prevention learnings and aims to help individuals make guided decisions about how they will manage their falls risk. Patient-centred models have been successfully trialled in chronic and cardiovascular disease; however, evidence to support this approach in falls prevention is limited. TRIAL REGISTRATION NUMBER The protocol for this study is registered with the Australian New Zealand Clinical Trials Registry (ACTRN12614000336684).
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Affiliation(s)
- A L Barker
- Health Services Research Unit, Centre of Research Excellence in Patient Safety, Division of Health Services and Global Health Research, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - P A Cameron
- Health Services Research Unit, Centre of Research Excellence in Patient Safety, Division of Health Services and Global Health Research, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - K D Hill
- School of Physiotherapy and Exercise Science, Curtin University of Technology, Perth, Western Australia, Australia
| | - L Flicker
- University of Western Australia, Perth, Western Australia, Australia Geriatric Medicine, Royal Perth Hospital, Perth, Western Australia, Australia Harry Perkins Institute for Medical Research, Perth, Western Australia, Australia
| | - T P Haines
- Department of Physiotherapy, Monash University, and Allied Health Research Unit, Monash Health, Melbourne, Victoria, Australia
| | - J A Lowthian
- Health Services Research Unit, Centre of Research Excellence in Patient Safety, Division of Health Services and Global Health Research, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - N Waldron
- Health Networks Branch, System Policy and Planning, Department of Health, Government of Western Australia, Perth, Western Australia, Australia
| | - G Arendts
- University of Western Australia, Perth, Western Australia, Australia Harry Perkins Institute for Medical Research, Perth, Western Australia, Australia
| | - J Redfern
- The George Institute for Global Health, Sydney Medical School, University of Sydney, Camperdown, New South Wales, Australia
| | - A Forbes
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - C A Brand
- Health Services Research Unit, Centre of Research Excellence in Patient Safety, Division of Health Services and Global Health Research, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia Melbourne EpiCentre, University of Melbourne and Melbourne Health, Melbourne, Victoria, Australia
| | - C D Etherton-Beer
- University of Western Australia, Perth, Western Australia, Australia Geriatric Medicine, Royal Perth Hospital, Perth, Western Australia, Australia Harry Perkins Institute for Medical Research, Perth, Western Australia, Australia
| | - A M Hill
- School of Physiotherapy, The University of Notre Dame Australia, Fremantle, Western Australia, Australia
| | - P Hunter
- Alfred Health, Melbourne, Victoria, Australia
| | - S R Nyman
- Bournemouth University Dementia Institute and Psychology Department, Faculty of Science and Technology, Bournemouth University, Poole, Dorset, UK
| | - D Smit
- Alfred Health, Melbourne, Victoria, Australia
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Burger BV, Nell AE, Smit D, Spies HS, Mackenroth WM, Groche D, Atkinson PR. Constituents of wing gland and abdominal hair pencil secretions of male African sugarcane borer,Eldana saccharina walker (Lepidoptera: Pyralidae). J Chem Ecol 2013; 19:2255-77. [PMID: 24248574 DOI: 10.1007/bf00979662] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/1993] [Accepted: 05/10/1993] [Indexed: 11/28/2022]
Abstract
In addition totrans-3,7-dimethyl-6-octen-4-olide (eldanolide), vanillin, and 4-hydroxybenzaldehyde, identified by French workers in the wing gland and abdominal hair pencil secretions of the male African sugarcane borer,Eldana saccharina, we have, in an earlier note, reported the presence of several other terpenoid, aromatic, and unbranched-chain compounds such as, (Z)-3,7-dimethylocta-2,6-dienoic acid, 6,10,14-trimethyl-2-pentadecanol, 4-hydroxy-3-methoxybenzyl alcohol, 1-octadecane thiol, 16-hexadecanolide, and 18-octadecanolide in these secretions. In the present paper experimental details and spectral evidence supporting the identification of these compounds, as well as the identification of (Z)-9-hexadecenal and cw-3,7-di-methyl-6-octen-4-olide (cis-eldanolide), are reported. Using electroantennography it was found that male and female antennae reacted approximately equally strongly to both secretions. This result was confirmed in analyses of the secretions using coupled gas chromatography-electroantennography and it was found that male as well as female antennae responded to eldanolide. Vanillin, substituted phenols related to vanillin, and some oxygenated monoterpenes elicited weak responses in male and female antennae. In some analyses 6,10,14-trimethyl-2-pentadecanol, present in the secretions of the insect, gave a strong antennal response. The results obtained in dynamic and static headspace determinations showed that several of the organic compounds present in the glandular secretions are released in detectable quantities and are present in widely varying quantitative ratios in the effluvia of individual calling male moths.
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Affiliation(s)
- B V Burger
- Laboratory for Ecological Chemistry, University of Stellenbosch, 7600, Stellenbosch, South Africa
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Lowthian JA, Smith C, Stoelwinder JU, Smit D, McNeil JJ, Cameron PA. Reply. Intern Med J 2013; 43:218-9. [DOI: 10.1111/imj.12058] [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] [Received: 10/31/2012] [Accepted: 11/08/2012] [Indexed: 10/27/2022]
Affiliation(s)
- J. A. Lowthian
- School of Public Health and Preventive Medicine; Monash University; Melbourne; Victoria; Australia
| | - C. Smith
- Emergency and Trauma Centre; Alfred Hospital; Melbourne; Victoria; Australia
| | - J. U. Stoelwinder
- School of Public Health and Preventive Medicine; Monash University; Melbourne; Victoria; Australia
| | - D. Smit
- Emergency and Trauma Centre; Alfred Hospital; Melbourne; Victoria; Australia
| | - J. J. McNeil
- School of Public Health and Preventive Medicine; Monash University; Melbourne; Victoria; Australia
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Zhang T, Smit D, Taylor D, Parker S, Xue C. P02.195. Acupuncture for acute pain management in an emergency department: an observational study. Altern Ther Health Med 2012. [PMCID: PMC3373618 DOI: 10.1186/1472-6882-12-s1-p251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Smit D. Eyelid problems in general practice. S Afr Fam Pract (2004) 2012. [DOI: 10.1080/20786204.2012.10874218] [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: 10/24/2022] Open
Affiliation(s)
- D Smit
- Department of Ophthalmology, Faculty of Health Sciences, Stellenbosch University, Tygerberg Hospital
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12
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Lowthian J, Cameron P, Smit D, Newnham H, Hunter P, Brand C, Barker A, Banerjee J, Cooke M. PB10 Safe Elderly Emergency Discharge (SEED) project: determining best practice for safe discharge of the older emergency patient. Emerg Med J 2012. [DOI: 10.1136/emermed-2012-201246.10] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Stub D, Bernard S, Pellegrino V, Smith K, Walker T, Stephenson M, Reid M, Sheldrake J, Hockings L, Duffy S, Shaw J, Cameron P, Smit D, Kaye D. Issues in Establishing the Refractory Out-of-Hospital Cardiac Arrest Treated with Mechanical CPR, Hypothermia, ECMO and Early Reperfusion (CHEER) Study. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.405] [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: 10/28/2022]
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Smit D. Allergic conditions of the eye. S Afr Fam Pract (2004) 2011. [DOI: 10.1080/20786204.2011.10874127] [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: 10/24/2022] Open
Affiliation(s)
- D Smit
- Department of Ophthalmology, Faculty of Health Sciences, Stellenbosch University, Tygerberg Hospital
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Naidoo S, Smit D. Methamphetamine abuse: a review of the literature and case report in a young male. SADJ 2011; 66:124-127. [PMID: 21874893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Methamphethamine (TIK) is a highly addictive drug that acts as a stimulant for the central nervous system. It increases wakefulness and physical activity and can cause cardiac dysrhythmias, hypertension, hallucinations and violent behavior. Dental patients abusing methamphetamine often present with poor oral hygiene, xerostomia, rampant caries ("meth mouth") and excessive tooth wear. Management of these conditions is often challenging. A 24-year-old Caucasian man presented with severe dental pain, halitosis and self-reported poor dental appearance. A comprehensive examination including his medical history, panoramic radiographs and extra- and intraoral examination revealed 19 carious and erosive lesions. He reported using methamphetamine for eleven years and had not experienced much caries prior to using the drug. The patient's medical and dental histories along with radiographic and clinical findings led to a diagnosis of "meth mouth." Although various dental treatment options were offered to the patient, he opted for extraction of the most painful teeth in the left lower madibular quadrant and has yet to return for further treatment. This literature review and clinical case description of the oral manifestations of "meth mouth" is intended to alert dental practitioners to recognize and manage patients who are abusing methamphetamines. They should also be aware that these patients are often unreliable at following prevention advice as well as keeping follow-up appointments.
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Affiliation(s)
- S Naidoo
- Department of Community Dentistry, Faculty of Dentistry, University of the Western Cape, Tygerberg.
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Smit D. The red eye in general practice: a clinical quiz. S Afr Fam Pract (2004) 2010. [DOI: 10.1080/20786204.2010.10874019] [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: 10/24/2022] Open
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Kapteyn J, Porre A, de Rond E, Hessels W, Tijms M, Kessen H, Slotboom A, Oerlemans M, Smit D, van der Linden J, Schoen P, Thus J. HPLC-based quantification of haemagglutinin in the production of egg- and MDCK cell-derived influenza virus seasonal and pandemic vaccines. Vaccine 2009; 27:1468-77. [DOI: 10.1016/j.vaccine.2008.11.113] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2008] [Revised: 11/19/2008] [Accepted: 11/28/2008] [Indexed: 10/21/2022]
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Abstract
HYPOTHESIS Nitrotyrosine, a reaction product of peroxynitrite and proteins, could be demonstrated in the postmortem examination of brain tissue of full-term neonates who had severe perinatal asphyxia. METHODS The brain tissue of 22 full-term neonates who died after severe perinatal asphyxia was examined, including cerebral cortex, basal ganglia, thalamus, hippocampus, brain stem, olives and cerebellum. Median age at death was 52 h. Routine histopathological examination and additional immunohistological staining were carried out with anti-cysteine protease protein 32 antibodies to detect activated caspase 3, anti-nitrotyrosine antibodies to detect nitrotyrosine and anti-CD68 antibodies to detect activated microglia and macrophages, which might be associated with the production of nitric oxide. Staining was scored as none, weak (1-25% positive cells), moderate (26-75% positive cells) or severe (>75% positive cells). RESULTS 14 patients showed global injury, 4 showed injury of the basal ganglia and thalamus, and 4 showed predominantly parasagittal brain injury. One neonate without perinatal asphyxia served as a control. Nitrotyrosine staining of neurones was shown in all neonates with asphyxia, mostly in the thalamus (70%) and inferior olives (68%). Total nitrotyrosine staining tended to be less in the base of the pons and inferior olives of neonates with parasagittal brain injury. Activated caspase 3 was found mostly in the thalamus (60%) and hippocampus (53%). Positive CD68 staining was mainly present in the thalamus (70% positive). CONCLUSION Nitrotyrosine was found in brain tissue of full-term neonates, suggesting that nitric oxide toxicity might have a role in hypoxic-ischaemic brain injury at term. This may be relevant for neuroprotective strategies in full-term neonates with perinatal asphyxia.
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Affiliation(s)
- F Groenendaal
- Department of Neonatology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Lundlaan, Utrecht, The Netherlands.
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19
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Burger BV, Smit D, Spies HS, Schmidt C, Schmidt U, Telitsina AY, Grierson GR. Mammalian exocrine secretions XV. Constituents of secretion of ventral gland of male dwarf hamster, Phodopus sungorus sungorus. J Chem Ecol 2001; 27:1259-76. [PMID: 11504027 DOI: 10.1023/a:1010328331891] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [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: 11/12/2022]
Abstract
In a study aimed at the chemical characterization of constituents of the ventral gland secretion of the male dwarf hamster, Phodopus sungorus sungorus, 48 compounds, including saturated alcohols, saturated and unsaturated ketones, saturated and unsaturated straight-chain carboxylic acids, iso- and anteisocarboxylic acids, 3-phenylpropanoic acid, hydroxyesters, 2-piperidone, and some steroids were identified in the secretion. The position of the double bonds in gamma-icosadienyl-gamma-butyrolactone and gamma-henicosadienyl-gamma-butyrolactone, and the position of methylbranching in seven C16-C21 saturated ketones could not be established. Several constituents with typically steroidal mass spectra also remained unidentified. The female dwarf hamster's ventral gland either does not produce secretion or produced so little secretion that it was impossible to collect enough material for analysis.
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Affiliation(s)
- B V Burger
- Department of Chemistry, University of Stellenbosch, South Africa
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Burger BV, Smit D, Spies HS, Schmidt C, Schmidt U, Telitsina AY. Mammalian exocrine secretions XVI. Constitutents of secretion of supplementary sacculi of dwarf hamster, Phodopus sungorus sungorus. J Chem Ecol 2001; 27:1277-88. [PMID: 11504028 DOI: 10.1023/a:1010380315961] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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: 11/12/2022]
Abstract
As a first step in a study of the role of the secretion of the supplementary sacculi (buccal secretion) of the dwarf hamster, Phodopus sungorus sungorus, almost complete chemical characterization of the secretion was achieved. The 35 compounds identified include carbon dioxide, hydrogen sulfide, a large number of carboxylic acids (representing the bulk of the organic volatile fraction of the secretion), phenol, 2-piperidone, indole, two long-chain hydroxyesters, cholestrol, desmosterol, and lanosterol. The position of the double bonds in gamma-icosadienyl-gamma-butyrolactone and gamma-henicosadienyl-gamma-butyrolactone could not be determined, and these two compounds remained only partially characterized. Large variations were found in the relative concentrations in which the short-chain carboxylic acids are present in the secretions of individual animals, and although this aspect was not investigated in sufficient detail in the present investigation, the difference in the carboxylic acid profiles of the secretions of individual animals could play a role in individual recognition in this animal.
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Affiliation(s)
- B V Burger
- Department of Chemistry, University of Stellenbosch, South Africa
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Burger BV, Nell AE, Smit D, Spies HSC. Cyclic Glycerol Acetals from the Abdominal Hair Pencil Secretion of the Male African Sugarcane Borer Eldana saccharina (Lepidoptera: Pyralidae). Z NATURFORSCH C 1991. [DOI: 10.1515/znc-1991-7-827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Four constituents of the hair pencil secretion of the male African sugarcane stalk borer, Eldana saccharina, having a molecular mass of 312 and peculiar El mass spectra with an exceptionally abundant base peak at m /z 103, were isolated preparatively from an extract of the secretion. Using 1H and 13C NMR spectral analysis, these constituents were identified as fiveand six-membered cyclic glycerol acetals of Z-9-hexadecenal, viz. cis- and trans-2-(Z- 8-pentadecenyl)-4-hydroxymethyl-1,3-dioxolane, and cis- and trans-2-(Z-8-pentadecenyl)- 5-hydroxy-1,3-dioxane. These compounds are related to the 2-alkenyl-4-hydroxymethyl-1,3- dioxolane dihydrogen phosphate esters, known to be the active constituents of the smooth muscle contracting acidic phospholipid (Darmstoff) which was isolated from the intestine of mammals. The presence of these acetals in the tail brush secretion of E. saccharina could possibly be the first evidence that com pounds related to the active principle of Darmstoff, may also be present in the insect kingdom. The possibility that these four compounds or their dihydrogen phosphate esters might play a part in the eversion or retraction of the tail brushes of the male insect, is briefly discussed.
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Affiliation(s)
- B. V. Burger
- Laboratory for Ecological Chemistry, Department of Chemistry, University of Stellenbosch, Stellenbosch 7600, South Africa
| | - A. E. Nell
- Laboratory for Ecological Chemistry, Department of Chemistry, University of Stellenbosch, Stellenbosch 7600, South Africa
| | - D. Smit
- Laboratory for Ecological Chemistry, Department of Chemistry, University of Stellenbosch, Stellenbosch 7600, South Africa
| | - H. S. C. Spies
- Laboratory for Ecological Chemistry, Department of Chemistry, University of Stellenbosch, Stellenbosch 7600, South Africa
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Burger BV, Munro Z, Smit D, Schmidt U, Wu CL, Tien FC. Sample introduction in gas chromatography: simple method for the solventless introduction of crude samples of biological origin. J Chromatogr A 1990; 518:207-14. [PMID: 2258405 DOI: 10.1016/s0021-9673(01)93176-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- B V Burger
- Laboratory for Ecological Chemistry, University of Stellenbosch, South Africa
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