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Johnson P, Chan JK, Vavasour IM, Abel S, Lee LE, Yong H, Laule C, Li DKB, Tam R, Traboulsee A, Carruthers RL, Kolind SH. Quantitative MRI findings indicate diffuse white matter damage in Susac Syndrome. Mult Scler J Exp Transl Clin 2022; 8:20552173221078834. [PMID: 35186315 PMCID: PMC8851927 DOI: 10.1177/20552173221078834] [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: 07/16/2021] [Accepted: 01/21/2022] [Indexed: 11/15/2022] Open
Abstract
Background Susac Syndrome (SuS) is an autoimmune endotheliopathy impacting the brain, retina and cochlea that can clinically mimic multiple sclerosis (MS). Objective To evaluate non-lesional white matter demyelination changes in SuS compared to MS and healthy controls (HC) using quantitative MRI. Methods 3T MRI including myelin water imaging and diffusion basis spectrum imaging were acquired for 7 SuS, 10 MS and 10 HC participants. Non-lesional white matter was analyzed in the corpus callosum (CC) and normal appearing white matter (NAWM). Groups were compared using ANCOVA with Tukey correction. Results SuS CC myelin water fraction (mean 0.092) was lower than MS(0.11, p = 0.01) and HC(0.11, p = 0.04). Another myelin marker, radial diffusivity, was increased in SuS CC(0.27μm2/ms) compared to HC(0.21μm2/ms, p = 0.008) and MS(0.23μm2/ms, p = 0.05). Fractional anisotropy was lower in SuS CC(0.82) than HC(0.86, p = 0.04). Fiber fraction (reflecting axons) did not differ from HC or MS. In NAWM, radial diffusivity and apparent diffusion coefficient were significantly increased in SuS compared to HC(p < 0.001 for both measures) and MS(p = 0.003, p < 0.001 respectively). Conclusions Our results provided evidence of myelin damage in SuS, particularly in the CC, and more extensive microstructural injury in NAWM, supporting the hypothesis that there are widespread microstructural changes in SuS syndrome including diffuse demyelination.
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Affiliation(s)
| | - JK Chan
- Department of Medicine (Neurology), University of British Columbia, Canada
| | - IM Vavasour
- Department of Radiology, University of British Columbia, Canada
- International Collaboration on Repair Discoveries (ICORD)
| | | | | | - H Yong
- Department of Medicine (Neurology), University of British Columbia, Canada
| | - C Laule
- Department of Radiology, University of British Columbia, Canada
- International Collaboration on Repair Discoveries (ICORD)
- Department of Pathology and Laboratory Medicine, University of British Columbia, Canada
- Department of Physics and Astronomy, University of British Columbia, Canada
| | - DKB Li
- Department of Medicine (Neurology), University of British Columbia, Canada
- Department of Radiology, University of British Columbia, Canada
| | - R Tam
- Department of Radiology, University of British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Canada
| | | | - RL Carruthers
- Department of Medicine (Neurology), University of British Columbia, Canada
| | - SH Kolind
- Department of Medicine (Neurology), University of British Columbia, Canada
- Department of Radiology, University of British Columbia, Canada
- International Collaboration on Repair Discoveries (ICORD)
- Department of Physics and Astronomy, University of British Columbia, Canada
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Vavasour IM, Becquart P, Gill J, Zhao G, Yik JT, Traboulsee A, Carruthers RL, Kolind SH, Schabas AJ, Sayao AL, Devonshire V, Tam R, Moore GRW, Stukas S, Wellington CL, Quandt JA, Li DKB, Laule C. Diffusely abnormal white matter in clinically isolated syndrome is associated with parenchymal loss and elevated neurofilament levels. Mult Scler Relat Disord 2021; 57:103422. [PMID: 34871858 DOI: 10.1016/j.msard.2021.103422] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/31/2021] [Revised: 10/23/2021] [Accepted: 11/20/2021] [Indexed: 11/19/2022]
Abstract
We characterized the frequency of diffusely abnormal white matter (DAWM) across a broad spectrum of multiple sclerosis (MS) participants. 35% of clinically isolated syndrome (CIS), 57% of relapsing remitting and 64% of secondary progressive MS participants demonstrated DAWM. CIS with DAWM had decreased cortical thickness, higher lesion load and a higher concentration of serum neurofilament light chain compared to CIS without DAWM. DAWM may be useful in identifying CIS patients with greater injury to their brains. Larger and longitudinal studies are warranted.
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Affiliation(s)
- I M Vavasour
- Radiology, University of British Columbia, Vancouver, British Columbia, Canada; International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, British Columbia, Canada.
| | - P Becquart
- Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - J Gill
- Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - G Zhao
- MS/MRI Research Group, University of British Columbia, Vancouver, British Columbia, Canada
| | - J T Yik
- International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, British Columbia, Canada; Physics & Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - A Traboulsee
- MS/MRI Research Group, University of British Columbia, Vancouver, British Columbia, Canada; Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - R L Carruthers
- Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - S H Kolind
- Radiology, University of British Columbia, Vancouver, British Columbia, Canada; International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, British Columbia, Canada; MS/MRI Research Group, University of British Columbia, Vancouver, British Columbia, Canada; Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Physics & Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - A J Schabas
- Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - A L Sayao
- Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - V Devonshire
- Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - R Tam
- Radiology, University of British Columbia, Vancouver, British Columbia, Canada; MS/MRI Research Group, University of British Columbia, Vancouver, British Columbia, Canada; School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - G R W Moore
- International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, British Columbia, Canada; Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - S Stukas
- Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - C L Wellington
- Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - J A Quandt
- Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - D K B Li
- Radiology, University of British Columbia, Vancouver, British Columbia, Canada; MS/MRI Research Group, University of British Columbia, Vancouver, British Columbia, Canada; Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - C Laule
- Radiology, University of British Columbia, Vancouver, British Columbia, Canada; International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, British Columbia, Canada; Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Physics & Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
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Williamson A, Nowicki S, James A, Chalmers A, Carruthers R, Duffton A. OC-0588: The role of the Consultant Neuro-Oncology Radiographer in the peer review session for brain tumours. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00610-1] [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: 10/22/2022]
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4
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Schabas AJ, Vukojevic V, Taylor C, Thu Z, Badyal A, Chan JK, Devonshire V, Traboulsee A, Sayao AL, Carruthers R. Cannabis-based product use in a multiple sclerosis cohort. Mult Scler J Exp Transl Clin 2019; 5:2055217319869360. [PMID: 31598330 PMCID: PMC6764052 DOI: 10.1177/2055217319869360] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/14/2019] [Accepted: 07/10/2019] [Indexed: 11/16/2022] Open
Abstract
Objective The objective of this study was to characterize the use of cannabis-based products (CBPs) by multiple sclerosis (MS) patients who attend the University of British Columbia Hospital (UBCH) MS clinic. Methods All patients attending the UBCH MS clinic from January to March 2018 were invited to participate in an anonymous survey that included: patient demographics (sex, age and employment status), self-reported MS-specific data (subtype, disease duration, previous and current disease modifying therapies, symptomatic medications) and CBP use (formulation, frequency, perceived benefits/side-effects). A second cohort of retrospective patient data (CBP use, sex, age, disease subtype and Expanded Disability Status Scale) was extracted from the UBCH MS clinic electronic medical record (EMR). Results Of 600 surveys distributed, 188 were returned with completed CBP usage. CBP use was daily for 19% (n = 37), weekly for 6% (n = 11), monthly for 4% (n = 7), rarely for 21% (n = 39) and 50% (n = 94) never used. Of the CBP users (daily, weekly and monthly), CBP use included: oral (n = 43/55), smoked/vaporized (n = 42/55), topical (n = 14/55) and mucosal (n = 5/55). EMR data was available for 561 MS patients where cannabis use/non-use was documented. CBP users represented 19% (107/561). Conclusions CBP use is common based on volunteer reporting, with approximately one out of four patients who attend the UBCH MS clinic using CBPs.
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Affiliation(s)
- A J Schabas
- Department of Division of Neurology/Department of Medicine, University of British Columbia, Canada
| | - V Vukojevic
- Department of Division of Neurology/Department of Medicine, University of British Columbia, Canada
| | - C Taylor
- Department of Statistics, University of British Columbia, Canada
| | - Z Thu
- Multiple Sclerosis Clinic, University of British Columbia, Canada
| | - A Badyal
- Multiple Sclerosis Clinic, University of British Columbia, Canada
| | - J K Chan
- Department of Division of Neurology/Department of Medicine, University of British Columbia, Canada
| | - V Devonshire
- Department of Division of Neurology/Department of Medicine, University of British Columbia, Canada
| | - A Traboulsee
- Department of Division of Neurology/Department of Medicine, University of British Columbia, Canada
| | - A L Sayao
- Department of Division of Neurology/Department of Medicine, University of British Columbia, Canada
| | - R Carruthers
- Department of Division of Neurology/Department of Medicine, University of British Columbia, Canada
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Williamson A, James A, Chalmers A, Carruthers R, Nowicki S, McLoone P. OC-0529 Evaluation of the potential treatment delivery benefits of Varian HyperArc for brain metastases. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30949-1] [Citation(s) in RCA: 1] [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: 11/29/2022]
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6
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Carruthers R, Ahmed S, Strathdee K, Chalmers A. SP-0652 The role of DNA replication stress in glioma stem cell radiation resistance. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31072-2] [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: 10/26/2022]
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Kjartansdottir O, Williamson A, Patibandla A, Currie S, Carruthers R, Chalmers A, James A, Nowicki S. EP-1233 Stereotactic radiosurgery to brain metastases using Varian HyperArc in the Beatson Cancer Centre. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31653-6] [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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Carruthers R, Paton G, Sheldon C, Vertinsky T, Traboulsee A, Carruthers M, Rennebohm R. North American Susac syndrome collaboration classification criteria: Labels for a broader spectrum of Susac syndrome. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.373] [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: 11/24/2022]
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Ahmed SU, Carruthers R, Biasoli D, Gomez-Roman N, Gilmour L, Strathdee K, Hedley A, Kalna G, Hammond E, Chalmers AJ. P08.36 Radioresistance of glioblastoma stem-like cells is associated with DNA replication stress, which is a promising therapeutic target. Neuro Oncol 2016. [DOI: 10.1093/neuonc/now188.169] [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: 11/14/2022] Open
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Godfrey R, Scalco R, Booth S, Ellerton C, Kahraman A, Chatfield S, Desikan M, Carruthers R, Wakelin A, Pattni J, Quinlivan R. Effect of a multi-disciplinary approach to diagnosis and management for non-lysosomal skeletal muscle glycogen storage disorders. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.404] [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: 10/21/2022]
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Affiliation(s)
- RL Carruthers
- Division of Neurology, University of British Columbia, Canada
| | - BC Healy
- Partners MS Center, Department of Neurology, Brigham and Women’s Hospital, USA
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Tulloch L, Piercy R, Troester S, Carruthers R, Tast V, Grimes L, Perkins J. Use of Laryngeal Computed Tomography for Noninvasive Assessment of Laryngeal Function in Horses with Recurrent Laryngeal Neuropathy. Equine Vet J 2014. [DOI: 10.1111/evj.12323_38] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L.K. Tulloch
- The Royal Veterinary College; Hawkshead Lane, North Mymms Hatfield Hertfordshire AL9 7TA UK
| | - R.J. Piercy
- The Royal Veterinary College; Hawkshead Lane, North Mymms Hatfield Hertfordshire AL9 7TA UK
| | - S. Troester
- The Royal Veterinary College; Hawkshead Lane, North Mymms Hatfield Hertfordshire AL9 7TA UK
| | - R. Carruthers
- The Royal Veterinary College; Hawkshead Lane, North Mymms Hatfield Hertfordshire AL9 7TA UK
| | - V. Tast
- The Royal Veterinary College; Hawkshead Lane, North Mymms Hatfield Hertfordshire AL9 7TA UK
| | - L. Grimes
- The Royal Veterinary College; Hawkshead Lane, North Mymms Hatfield Hertfordshire AL9 7TA UK
| | - J.D. Perkins
- The Royal Veterinary College; Hawkshead Lane, North Mymms Hatfield Hertfordshire AL9 7TA UK
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Chalmers A, Carruthers R. SP-0103: Combining PARP inhibitors with radiation and chemotherapy in early phase clinical trials. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30208-5] [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: 10/23/2022]
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14
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Carruthers R, Tho LM, Brown J, Kakumanu S, McCartney E, McDonald AC. Systemic inflammatory response is a predictor of outcome in patients undergoing preoperative chemoradiation for locally advanced rectal cancer. Colorectal Dis 2012; 14:e701-7. [PMID: 22731833 DOI: 10.1111/j.1463-1318.2012.03147.x] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AIM Current management of locally advanced rectal cancer includes neoadjuvant chemoradiation in selected patients to increase the chance of a tumour-free circumferential resection margin. There is uncertainty over the role of and selection criteria for additional systemic therapy in this group of patients. In this retrospective study we investigate the association between markers of systemic inflammatory response (SIR) and outcome from treatment. METHOD One hundred and fifteen patients with locally advanced rectal cancer undergoing preoperative chemoradiation had recording of full blood count parameters including neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratios (PLR). Postoperative surgical margins (R status) and pathological stage were documented. Outcome measures were overall survival (OS), time to local recurrence (TTLR) and disease-free survival (DFS). Cox regression analysis was performed to identify predictors of outcome. RESULTS Only NLR and R status were significant predictors for all outcome measures on univariate and multivariate analysis. Elevated NLR (≥5) was associated with decreased OS, [hazard ratio (HR) and 95% CI, 7.0 (2.6-19.2)], decreased TTLR [HR 3.8 (1.3-11.2)] and shorter DFS [HR 4.1 (1.7-9.8)]. Median survival for patients with an elevated NLR was 18.8 months compared with 54.4 months without an elevated NLR (P<0.001). CONCLUSION In addition to postoperative R-status, an elevated NLR is also a valuable prognostic marker in patients undergoing chemoradiation for locally advanced rectal carcinoma. It is associated with worse OS, TTLR and DFS. An elevated NLR may be a useful additional tool in guiding the decision-making process for adjuvant or neoadjuvant therapies.
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Affiliation(s)
- R Carruthers
- Colorectal Cancer Team, Beatson West of Scotland Cancer Centre, Glasgow Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
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Carruthers R, O'Rourke N, Mohammed N, Hicks J, Brisbane I. Toxicity of hypofractionated accelerated radiotherapy concurrent with chemotherapy for non-small cell carcinoma of the lung. Clin Oncol (R Coll Radiol) 2011; 23:561-2. [PMID: 21676603 DOI: 10.1016/j.clon.2011.05.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Accepted: 05/20/2011] [Indexed: 12/25/2022]
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Mohammed N, Carruthers R, Brisbane I, Hicks J, O'Rourke N. Toxicity of hypofractionated accelerated radiotherapy concomitant with cisplatin/vinorelbine chemotherapy for non small cell lung cancer. Lung Cancer 2010. [DOI: 10.1016/s0169-5002(10)70111-2] [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: 11/26/2022]
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Din O, Harden S, Hudson E, Mohammed N, Pemberton L, Lester J, Biswas D, Magee L, Tufail A, Carruthers R, Sheikh G, Gilligan D, Hatton M. Accelerated hypofractionated radiotherapy for non small cell lung cancer: Pooled results from 4 UK centres. Lung Cancer 2010. [DOI: 10.1016/s0169-5002(10)70097-0] [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: 11/30/2022]
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Bateman RH, Carruthers R, Hoyes JB, Jones C, Langridge JI, Millar A, Vissers JPC. A novel precursor ion discovery method on a hybrid quadrupole orthogonal acceleration time-of-flight (Q-TOF) mass spectrometer for studying protein phosphorylation. J Am Soc Mass Spectrom 2002; 13:792-803. [PMID: 12148804 DOI: 10.1016/s1044-0305(02)00420-8] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A tandem quadrupole time-of-flight (Q-TOF) mass spectrometer has been programmed such that phosphorylated peptides can automatically be discovered and identified in a way similar to that of the use of precursor ion or neutral loss scanning, but without the need to scan the quadrupole mass filter. Instead, the method capitalizes on the innate capability of the Q-TOF to record mass spectra and product ion spectra quickly, with good sensitivity and with good mass accuracy. Alternate mass spectra, with and without fragmentation, are recorded at high and low collision energy with the quadrupole operating in wideband mode. The method of analysis is both compatible with and dependant on liquid chromatography for separation of complex mixtures. The method has been demonstrated by searching for the neutral loss of 98 Da (H3PO4) from phosphoserine and phosphothreonine residues, or for the phosphorylated immonium ion at m/z 216 from phosphotyrosine. The method also incorporates acquisition of the product ion spectrum from any candidate precursor ions, thereby allowing confirmation of the neutral loss or product ion and providing additional sequence information to assist identification of the protein and assign the site of phosphorylation.
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Affiliation(s)
- R H Bateman
- Micromass Ltd., Wythenshawe, Manchester, UK.
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Abstract
In this study, we compared the likely cost-effectiveness of alternative strategies for controlling a school-based measles outbreak. The analysis involved assessing the expected costs and number of cases in a school-based outbreak of measles, with no intervention and with each of six control strategies. The marginal cost per case prevented ranged from $32.90 when only previously unvaccinated school children were offered vaccination to $6795 when vaccination was extended to the siblings of school children aged 6 to 12 months. This study provided further evidence of the cost-effectiveness of vaccination in outbreak control, and yielded useful information to inform control strategies in the event of a school-based outbreak. Decisions about which groups of children to aim at and whether to conduct school-based clinics will be influenced by local circumstances, particularly the baseline measles vaccination rate and the measles attack rate among infants.
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Affiliation(s)
- A Shiell
- Department of Public Health and Community Medicine, University of Sydney, NSW
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Carruthers R. Psoriasis--treatment options. Aust Fam Physician 1992; 21:1625-9. [PMID: 1444999] [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: 12/27/2022]
Abstract
Psoriasis can be a disfiguring and psychologically disturbing condition. Although a cure is not possible, treatment options offer relief and often remission for the patient willing to comply with them. The author looks at those options.
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Carruthers R. Chilblains (perniosis). Aust Fam Physician 1988; 17:968-9. [PMID: 3074755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Abstract
Impetigo, a contagious superficial pyogenic infection of the skin, can be treated orally or topically. Nowadays oral erythromycin is the treatment of choice, although flucloxacillin is preferred in areas where the causative micro-organisms are resistant to erythromycin. Topical mupirocin ointment has shown itself to be as effective as oral therapy in many cases and is less likely to be associated with unwanted effects. The availability of 2 forms of therapy-oral and topical-means that treatment can be tailored according to the preferences of the patient. Consequently, drug therapy is more likely to be used appropriately. Arguments for and against the prescribing of each form of therapy are presented.
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Affiliation(s)
- R Carruthers
- Launceston General Hospital, Tasmania, Australia
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23
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Carruthers R. Painful skin conditions of the foot. Aust Fam Physician 1987; 16:1098-9. [PMID: 3675343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Carruthers R, Sauerbrei E, Gutelius J, Brown P. Sealed rupture of abdominal aortic aneurysm imitating metastatic carcinoma. J Vasc Surg 1986; 4:529-32. [PMID: 3773134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We report the case of a 53-year-old man in whom rupture of an abdominal aortic aneurysm associated with a large retroperitoneal hematoma caused pressure erosion and destruction of lumbar vertebrae. The bone destruction was thought to represent metastasis from a bronchogenic carcinoma. Only after 18 months of gradual clinical deterioration with presumed metastatic cancer to the lumbar spine was the true nature of his disease recognized. After the ruptured aortic aneurysm was repaired, rapid recovery occurred and the retroperitoneal hematoma gradually was resorbed.
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Carruthers R. Post-partum alopecia and zinc. Med J Aust 1983; 2:259. [PMID: 6646029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Carruthers R. Realities of fusion power. Nature 1978. [DOI: 10.1038/273592b0] [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: 11/09/2022]
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Chintu C, Carruthers R. Achalasia of the oesophagus in a 3-year-old Zambian child treated successfully by resection. East Afr Med J 1976; 53:121-5. [PMID: 1278076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Kutt H, Solomon G, Wasterlain C, Peterson H, Louis S, Carruthers R. Carbamazepine in difficult to control epileptic out-patients. Acta Neurol Scand Suppl 1975; 60:27-32. [PMID: 811074 DOI: 10.1111/j.1600-0404.1975.tb01384.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Twenty-three difficult to control patients with 1 or more seizures per week despite diphenylhydantoin (DPH), phenobarbital and/or primidone in near and toxic doses and blood levels were entered in the study. 3 had grand mal. 8 psychomotor seizures and 12 had both. During a 6 1/2 month study period the patient received active drug and placebo for 3 months each; randomized, double-blind. The dose was to be increased within 4 weeks up to 6 capsules per day equal to 1,200 mg of carbamazepine (C), while the doses or previously taken (basis) anticonvulsants were to remain unchanged. Hematopoetic system and heptic functions were monitored. Complete seizure control attributable to C was not achieved in any, but up to 50% improvement occurred in 12 patients. Questionable improvement was thought to take place in 3 patients, no change occurred in 7, and psychomotor seizures became more frequent in 1 patient. A clear-cut psychotropic effect was not observed. Adverse effects attributable to C were a decline of WBC below 4,000 with relative neutropenia in 3 patients followed by at return to the previous after discontinuation of C. Nystagmus and unsteadiness were seen in about half of the patients, and some headache and drowsiness occurred in one quarter. The highest C blood level was 11.8 mug/ml, the lowest 3.8 mug/ml (average 5.6 mug/ml) during 1,200 mg intake. It seemed, generally, that intoxication occurred with lower blood levels of carbamazepine in those patients whose basis anticonvulsant blood levels were highest.
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Carruthers R. Banning of products containing halogenated salicylanilides. Med J Aust 1969; 2:725-6. [PMID: 5348661 DOI: 10.5694/j.1326-5377.1969.tb107363.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Carruthers R. A preferable site for vaccination. Med J Aust 1969; 1:1174-7. [PMID: 5792716 DOI: 10.5694/j.1326-5377.1969.tb105640.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Carruthers R. Aphthous Ulceration. West J Med 1968. [DOI: 10.1136/bmj.2.5607.763-b] [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: 11/04/2022]
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Carruthers R. Contraceptives and Alopecia. West J Med 1968. [DOI: 10.1136/bmj.2.5596.52-a] [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: 11/04/2022]
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Carruthers R. The treatment and prevention of chloasma. Practitioner 1968; 200:564-8. [PMID: 5660548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Carruthers R. A plea for further investigation of the sun-protective effect of vitamin A. Med J Aust 1968; 1:282-4. [PMID: 4231368 DOI: 10.5694/j.1326-5377.1968.tb28694.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Carruthers R, Dean FM, Houghton LE, Ledwith A. Intramolecular donor–acceptor interaction between aromatic amines and quinones. ACTA ACUST UNITED AC 1967. [DOI: 10.1039/c19670001206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Carruthers R. Chloasma and oral contraceptives. Med J Aust 1966; 2:17-20. [PMID: 5944123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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