18 results on '"Aarons EJ"'
Search Results
2. Presence and Persistence of Zika Virus RNA in Semen, United Kingdom, 2016.
- Author
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Atkinson B, Thorburn F, Petridou C, Bailey D, Hewson R, Simpson AJ, Brooks TJ, and Aarons EJ
- Subjects
- Adult, Humans, Male, United Kingdom epidemiology, Zika Virus Infection virology, RNA, Viral isolation & purification, Semen virology, Zika Virus isolation & purification, Zika Virus Infection transmission
- Abstract
Zika virus RNA has been detected in semen collected several months after onset of symptoms of infection. Given the potential for sexual transmission of Zika virus and for serious fetal abnormalities resulting from infection during pregnancy, information regarding the persistence of Zika virus in semen is critical for advancing our understanding of potential risks. We tested serial semen samples from symptomatic male patients in the United Kingdom who had a diagnosis of imported Zika virus infection. Among the initial semen samples from 23 patients, Zika virus RNA was detected at high levels in 13 (56.5%) and was not detected in 9 (39.1%); detection was indeterminate in 1 sample (4.4%). After symptomatic infection, a substantial proportion of men have detectable Zika virus RNA at high copy numbers in semen during early convalescence, suggesting high risk for sexual transmission. Viral RNA clearance times are not consistent and can be prolonged.
- Published
- 2017
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3. Detection of Zika Virus in Semen.
- Author
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Atkinson B, Hearn P, Afrough B, Lumley S, Carter D, Aarons EJ, Simpson AJ, Brooks TJ, and Hewson R
- Subjects
- Aged, Humans, Male, Travel, Zika Virus Infection diagnosis, Semen virology, Zika Virus classification, Zika Virus genetics, Zika Virus Infection transmission, Zika Virus Infection virology
- Published
- 2016
- Full Text
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4. Zika virus.
- Author
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Basarab M, Bowman C, Aarons EJ, and Cropley I
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- Aedes virology, Animals, Central Nervous System Infections epidemiology, Female, Guillain-Barre Syndrome epidemiology, Guillain-Barre Syndrome virology, Humans, Insect Vectors, Microcephaly epidemiology, Microcephaly virology, Pregnancy, Pregnancy Complications, Infectious epidemiology, Pregnancy Complications, Infectious virology, South America epidemiology, Zika Virus, Zika Virus Infection diagnosis, Zika Virus Infection transmission, Disease Outbreaks, Zika Virus Infection epidemiology
- Published
- 2016
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5. A non-fatal case of hantavirus cardiopulmonary syndrome imported into the UK (ex Panama), July 2014.
- Author
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Atkinson B, Jameson LJ, Bovill BA, Aarons EJ, Clewlow J, Lumley S, Latham J, Jenkins MH, MacGowan AP, Simpson AJ, Ahmed J, Brooks TJ, and Hewson R
- Subjects
- Adult, Cluster Analysis, Female, Orthohantavirus classification, Orthohantavirus genetics, Humans, Panama, Phylogeny, Sequence Homology, United Kingdom, Orthohantavirus isolation & purification, Hantavirus Infections diagnosis, Hantavirus Infections pathology, Heart Arrest etiology, Heart Arrest pathology, Travel
- Published
- 2015
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6. Non-fatal case of Crimean-Congo haemorrhagic fever imported into the United Kingdom (ex Bulgaria), June 2014.
- Author
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Lumley S, Atkinson B, Dowall S, Pitman J, Staplehurst S, Busuttil J, Simpson A, Aarons E, Petridou C, Nijjar M, Glover S, Brooks T, and Hewson R
- Subjects
- Aged, Antibodies, Viral blood, Bulgaria, DNA, Viral analysis, Fever etiology, Headache etiology, Hemorrhagic Fever Virus, Crimean-Congo genetics, Hemorrhagic Fever, Crimean blood, Humans, Reverse Transcriptase Polymerase Chain Reaction, United Kingdom, Hemorrhagic Fever Virus, Crimean-Congo isolation & purification, Hemorrhagic Fever, Crimean diagnosis, Travel
- Abstract
Crimean-Congo haemorrhagic fever (CCHF) was diagnosed in a United Kingdom traveller who returned from Bulgaria in June 2014. The patient developed a moderately severe disease including fever, headaches and petechial rash. CCHF was diagnosed following identification of CCHF virus (CCHFV) RNA in a serum sample taken five days after symptom onset. Sequence analysis of the CCHFV genome showed that the virus clusters within the Europe 1 clade, which includes viruses from eastern Europe.
- Published
- 2014
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7. Patient characteristics and severity of human rhinovirus infections in children.
- Author
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Lauinger IL, Bible JM, Halligan EP, Bangalore H, Tosas O, Aarons EJ, MacMahon E, and Tong CY
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- Child, Preschool, Enterovirus genetics, Enterovirus isolation & purification, Enterovirus Infections epidemiology, Enterovirus Infections virology, Female, Humans, Infant, Infant, Newborn, London epidemiology, Male, Picornaviridae Infections virology, RNA, Viral genetics, RNA, Viral isolation & purification, Respiratory Tract Infections virology, Retrospective Studies, Rhinovirus genetics, Severity of Illness Index, Picornaviridae Infections epidemiology, Picornaviridae Infections pathology, Respiratory Tract Infections epidemiology, Respiratory Tract Infections pathology, Rhinovirus classification, Rhinovirus isolation & purification
- Abstract
Background: It is increasingly recognized that human rhinoviruses (HRV) can be associated with severe infections. However, conflicting results have been reported on the relative prevalence and severity of the three HRV species., Objectives: The relative prevalence and clinical characteristics of HRV-A, B and C, in children attending a South London teaching hospital were investigated retrospectively., Study Design: Children aged<16 years with episodes of respiratory tract infections and detectable entero/rhinovirus RNA in respiratory samples between November 2009 and December 2010 were investigated. Retrospective case review was performed and patients' characteristics recorded., Results: Entero/rhinoviruses were the commonest viral pathogens (498/2316; 21.5%). Amongst 204 infection episodes associated with entero/rhinovirus, 167 were typed HRV, HRV-C was the most prevalent (99/167, 59.3%) followed by HRV-A (60/167; 35.9%) and HRV-B (8/167, 4.8%). The severity spectrum of HRV-A and HRV-C infections were similar and affected all parts of the respiratory tract. Co-pathogens were observed in 54 (26.5%) episodes. Severity was increased in patients with non-viral co-pathogens and those with an underlying respiratory condition. Univariate and multiple regression analyses of potential prognostic variables including age, co-pathogens and underlying respiratory illnesses showed that mono-infection with HRV-C, as compared with other HRV species, was associated with more severe disease in young children<3 years., Conclusions: HRV-C was the most prevalent species and on its own was associated with severe disease in children<3 years. The association between infection with HRV species and clinical presentation is complex and affected by many confounding factors., (Copyright © 2013 Elsevier B.V. All rights reserved.)
- Published
- 2013
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8. Lineages, sub-lineages and variants of enterovirus 68 in recent outbreaks.
- Author
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Lauinger IL, Bible JM, Halligan EP, Aarons EJ, MacMahon E, and Tong CY
- Subjects
- 5' Untranslated Regions, Adolescent, Amino Acid Sequence, Base Sequence, Capsid Proteins genetics, Child, Child, Preschool, Enterovirus Infections epidemiology, Female, Humans, Male, Molecular Sequence Data, Molecular Typing, Multiplex Polymerase Chain Reaction, Phylogeny, Sequence Analysis, DNA, Sequence Deletion, Sequence Homology, Amino Acid, Sequence Homology, Nucleic Acid, Disease Outbreaks, Enterovirus D, Human genetics, Enterovirus Infections virology, Genetic Variation
- Abstract
Enterovirus 68 (EV68) was first isolated in 1962. Very few cases of EV68 infection were described over the ensuing 40 years. However, in the past few years, an increase in severe respiratory tract infections associated with EV68 has been reported. We identified two clusters of EV68 infection in South London, UK, one each in the autumn/winters of 2009 and 2010. Sequence comparison showed significant homology of the UK strains with those from other countries including the Netherlands, Japan and the Philippines, which reported EV68 outbreaks between 2008 and 2010. Phylogenetic analysis of all available VP1 sequences indicated the presence of two modern EV68 lineages. The 2010 UK strains belonged to lineage 2. Lineage 1 could be further divided into two sub-lineages: some Japanese and Dutch strains collected between 2004 and 2010 form a distinct sub-lineages (sub-lineage 1.1), whereas other strains from the UK, Japan, Netherlands and Philippines collected between 2008 and 2010 represent sub-lineage 1.2. The UK 2009 strains together with several Dutch and Japanese strains from 2009/2010 represents one variant (1.2.1), whereas those from the Philippines a second variant (1.2.2). Based on specific deletions and substitutions, we suggest rules for the assignment of lineages and sub-lineages. Molecular epidemiological analysis indicates rapid recent evolution of EV68 and this may explain the recent findings of a global resurgence of EV68. Continuous global monitoring of the clinical and molecular epidemiology of EV68 is recommended.
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- 2012
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9. Adaptation to blockade of human immunodeficiency virus type 1 entry imposed by the anti-CCR5 monoclonal antibody 2D7.
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Aarons EJ, Beddows S, Willingham T, Wu L, and Koup RA
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- Amino Acid Sequence, Antibodies, Monoclonal immunology, Cell Line, Cloning, Molecular, Gene Products, vif genetics, Gene Products, vpr genetics, Genes, Viral drug effects, HIV Envelope Protein gp120 genetics, HIV-1 genetics, HIV-1 immunology, Human Immunodeficiency Virus Proteins, Humans, Molecular Sequence Data, Sequence Homology, Amino Acid, Viral Regulatory and Accessory Proteins genetics, vif Gene Products, Human Immunodeficiency Virus, vpr Gene Products, Human Immunodeficiency Virus, Adaptation, Biological genetics, Antibodies, Monoclonal pharmacology, HIV-1 drug effects, Receptors, CCR5 immunology
- Abstract
The second extracellular loop (ECL2) domain of CC-chemokine receptor 5 (CCR5) has been proposed as a specific target site for therapeutic agents aimed at blocking CCR5-dependent entry by human immunodeficiency virus type I (HIV-1). We have adapted two CCR5-using HIV-1 isolates, prototypic JR-CSF, and a primary isolate, 11-121, to replicate in vitro in the presence of high concentrations of a monoclonal antibody (MAb 2D7) specific for the CCR5 ECL2 domain. The 75% inhibitory concentrations (IC(75)) for the two 2D7-adapted isolates were approximately 100-fold higher than those for corresponding control isolates passaged without the MAb. Adapted isolates did not acquire the ability to use CXCR4, CCR3, or CCR1. Env clones derived from MAb 2D7-adapted JR-CSF showed several gp120 mutations that were not found in any of the control JR-CSF clones. The in vitro observations suggest that CCR5-using HIV-1 strains might also be able to adapt in vivo to evade an ECL2-blocking therapeutic agent., (Copyright 2001 Academic Press.)
- Published
- 2001
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10. Encephalitozoon cuniculi isolated from the urine of an AIDS patient, which differs from canine and murine isolates.
- Author
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Hollister WS, Canning EU, Colbourn NI, and Aarons EJ
- Subjects
- AIDS-Related Opportunistic Infections parasitology, Animals, Antigens, Protozoan analysis, Base Sequence, Blotting, Western, Cell Line, DNA Primers, DNA, Protozoan analysis, DNA, Protozoan genetics, Electrophoresis, Polyacrylamide Gel, Encephalitozoon cuniculi genetics, Encephalitozoon cuniculi ultrastructure, Encephalitozoonosis diagnosis, Encephalitozoonosis urine, Humans, Kidney, Microscopy, Electron, Molecular Sequence Data, AIDS-Related Opportunistic Infections urine, Dogs parasitology, Encephalitozoon cuniculi isolation & purification, Encephalitozoonosis etiology, Mice parasitology, Polymerase Chain Reaction methods
- Abstract
A species of Encephalitozoon has been isolated from the urine of a patient with the acquired immunodeficiency syndrome and maintained in vitro in Madin Darby Canine Kidney cells. When examined by random amplified polymorphic DNA polymerase chain reaction the new isolate was found to differ from E. hellem and to have amplified products in common with murine and canine E. cuniculi. However, it more closely resembled the canine than the murine isolate. Sodium dodecylsulphate polyacrylamide gel electrophoresis differentiated between all three isolates of E. cuniculi, with a band at 42-45 kDa present in the murine isolate only, bands at 52 kDa present in the canine and human isolates but not the murine, and a single band at 60 kDa (murine) and 65 kDa (canine) replaced by two bands at 55 and 70 kDa in the human isolate. The 55 kDa and 70 kDa antigens were also revealed as characteristic bands of the human isolate by Western blotting. The study has thus revealed that the species Encephalitozoon cuniculi is not a homogeneous entity.
- Published
- 1995
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11. Reversible renal failure caused by a microsporidian infection.
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Aarons EJ, Woodrow D, Hollister WS, Canning EU, Francis N, and Gazzard BG
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- AIDS-Related Opportunistic Infections drug therapy, Acute Kidney Injury diagnosis, Adult, Animals, Biopsy, Creatinine blood, Encephalitozoon isolation & purification, Encephalitozoonosis drug therapy, HIV Seropositivity, Homosexuality, Male, Humans, Kidney parasitology, Kidney pathology, Male, AIDS-Related Opportunistic Infections complications, Acute Kidney Injury etiology, Albendazole therapeutic use, Encephalitozoonosis complications
- Abstract
Objective: To report a case of renal failure associated with microsporidian infection in an HIV-seropositive patient., Design: Case report., Setting: Chelsea and Westminster Hospital, London, England, UK., Patient: An HIV-seropositive patient presented febrile with abdominal pain who developed renal failure. Renal biopsy and urinalysis showed infection with a microsporidian of the genus Encephalitozoon., Intervention: Treatment with albendazole (400 mg) twice daily was associated with disappearance of infection from the urine, clinical improvement and return of renal function virtually to normal., Conclusion: HIV-seropositive individuals with renal failure should have urine screened for microsporidia. The administration of albendazole in such cases may reverse renal failure.
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- 1994
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12. Preregistration house officers in the Thames regions: changes in quality of training after four years.
- Author
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Gillard JH, Dent TH, Aarons EJ, Crimlisk HL, Smyth-Pigott PJ, and Nicholls MW
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- Attitude of Health Personnel, Educational Status, England, Humans, Inservice Training, Medical Staff, Hospital psychology, Medical Staff, Hospital statistics & numerical data, Surveys and Questionnaires, Time Factors, Education, Medical, Graduate standards, Medical Staff, Hospital education, Workload statistics & numerical data
- Abstract
Objective: To measure changes in the training and workload of preregistration house officers over four years., Design: Postal questionnaire., Setting: The Thames health regions., Participants: 1049 preregistration house officers., Results: Response rate was 69% (725 replies). The proportion of house officers officially on duty > 83 hours a week fell from at least 42% to 21%, and the proportion officially on duty < or = 72 hours rose from no more than 9% to 40%. Adequate guidance in breaking bad news increased from 25% to 46% (p < 0.0001; 95% confidence interval for difference, 16.2% to 25.8%) and guidance in pain control increased from 36% to 46% (p < 0.01; 5.0% to 15.0%). The number of house officers attending an induction course increased from 61% to 94% (p < 0.001; 28.9% to 37.1%). There was no change in the proportion unable to attend formal educational sessions because of clinical commitments or in levels of satisfaction with consultants' educational supervision. The median number of inpatients under house officers' care fell from 20 to 17, but the numbers of patients clerked in an average week showed little change. House officers were less satisfied with the clinical experience their post provided (proportion dissatisfied rose from 30% to 39%; p < 0.01; 4.2% to 13.8%) and less enthusiastic about recommending their post to a friend (proportion neutral or not recommending rose from 30% to 42%, p < 0.0001; 7.9% to 16.9%)., Conclusion: Despite progress in reducing hours of duty and providing induction courses, the training that hospitals and consultants provide for house officers is still unsatisfactory and inconsistent with the General Medical Council's recommendations.
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- 1993
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13. Preregistration house officers in eight English regions: survey of quality of training.
- Author
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Gillard JH, Dent TH, Aarons EJ, Smyth-Pigott PJ, and Nicholls MW
- Subjects
- Attitude of Health Personnel, England, Humans, Inservice Training, Medical Staff, Hospital psychology, Medical Staff, Hospital standards, Medical Staff, Hospital statistics & numerical data, Surveys and Questionnaires, Teaching, Time Factors, Workload statistics & numerical data, Education, Medical, Graduate standards, Medical Staff, Hospital education
- Abstract
Objective: To assess the quality of preregistration house officer training in eight English regions., Design: Postal questionnaire., Setting: Thames, East Anglian, Mersey, Northern, and Wessex regions., Participants: 1670 preregistration house officers., Main Outcome Measures: Education, hours of work, workload, conditions of work, and attitudes to job and medicine as a career., Results: Response rate was 69% (1146 replies). Most house officers had attended induction courses (1036/1129 (92%)); 74% (757/1024) found them satisfactory. The proportions who had never received adequate guidance on how to break bad news and how to control pain were 59% (670/1135) and 56% (634/1136) respectively. There was much variation between regions. Overall, 65% (736/1138) reported confidence in performing cardiopulmonary resuscitation. Most respondents (95% (1089/1142)) worked an on call rota, 3% (36) a partial shift, and 0.6% (seven) a full shift; 19% (202) were on duty for average weekly hours that exceeded the targets for 1 April 1993. House officers had a median of 20 patients under their care and clerked a median of 10 emergency cases, six routine cases, and two day cases a week. Over half (690/1128 (61%)) could not obtain hot food after 8 pm, 20% (223/1095) did not always have clean sheets available in their on call room, and 45% (462/1036) did not consider the protection of staff against violence to be adequate at their hospital. The most important problems with the preregistration year were inappropriate or non-medical tasks (ranked first by 360 respondents), hours of work (359), and pay for out of hours work (167). Overall 57% (646/1125) would encourage a friend to apply for their post, but only 24% (266/1112) would encourage a friend to take up medicine and 44% (494/1112) would discourage the idea., Conclusions: House officers' training is deficient in important respects, with inappropriate tasks and heavy clinical workloads impeding the provision of proper education.
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- 1993
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14. Aseptic arthritis associated with herpes zoster.
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Aarons EJ and Beeching NJ
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- Female, Humans, Immunocompromised Host, Knee Joint, Middle Aged, Arthritis, Infectious diagnosis, Herpes Zoster diagnosis
- Abstract
Arthritis associated with herpes zoster is rarely reported. We describe the clinical features of an immunocompromised 54-year-old woman who developed sterile arthritis of a knee in association with acute ipsilateral zoster of the L1/L2 dermatomes.
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- 1993
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15. Survey of "do not resuscitate" orders in a district general hospital.
- Author
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Aarons EJ and Beeching NJ
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- Age Factors, Communication, Decision Making, England, Hospital Bed Capacity, 300 to 499, Humans, Interdisciplinary Communication, Medical Staff, Hospital, Nursing Staff, Hospital, Professional-Patient Relations, Prognosis, Surveys and Questionnaires, Time Factors, Hospitals, District statistics & numerical data, Resuscitation Orders
- Abstract
Objective: To evaluate the local use of written "Do not resuscitate" orders to designate inpatients unsuitable for cardiopulmonary resuscitation in the event of cardiac arrest., Design: Point prevalence questionnaire survey of inpatients' medical and nursing records., Setting: 10 acute medical and six acute surgical wards of a district general hospital., Participants: Questionnaires were filled in anonymously by nurses and doctors working on the wards surveyed., Main Outcome Measures: Responses to questionnaire items concerning details about each patient, written orders not to resuscitate in the medical case notes and nursing records, whether prognosis had been discussed with patients' relatives, whether a "crash call" was perceived as appropriate for each patient, and whether the "crash team" would be called in the event of arrest., Results: Information was obtained on 297 (93.7%) of 317 eligible patients. Prognosis had been discussed with the relatives of 32 of 88 patients perceived by doctors as unsuitable for resuscitation. Of these 88 patients, 24 had orders not to resuscitate in their medical notes, and only eight of these had similar orders in their nursing notes., Conclusions: In the absence of guidelines on decisions about resuscitation, orders not to resuscitate are rarely included in the notes of patients for whom cardiopulmonary resuscitation is thought to be inappropriate. Elective decisions not to resuscitate are not effectively communicated to nurses. There should be more discussion of patients' suitability for resuscitation between doctors, nurses, patients, and patients' relatives. Suitability for resuscitation should be reviewed on every consultant ward round.
- Published
- 1991
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16. Primary pulmonary hypertension and HIV infection.
- Author
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Aarons EJ and Nye FJ
- Subjects
- Adult, England epidemiology, France epidemiology, Humans, Male, United States epidemiology, HIV Seropositivity complications, Hypertension, Pulmonary complications
- Published
- 1991
17. Preregistration house officers in the four Thames regions: I. Survey of education and workload.
- Author
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Dent TH, Gillard JH, Aarons EJ, Crimlisk HL, and Smyth-Pigott PJ
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- Accreditation standards, Attitude of Health Personnel, England, Hospitals, Teaching standards, Humans, Job Satisfaction, Surveys and Questionnaires, Work Schedule Tolerance psychology, Education, Medical, Graduate standards, Internship and Residency standards
- Abstract
Objective: To assess the education and workload of preregistration house officers in the four Thames regions., Design: Postal questionnaire., Setting: Teaching and non-teaching hospitals in the four Thames regions., Participants: 1064 Preregistration house officers., Results: Response rate was 70% (740 replies). Nine per cent of house officers (66/729) worked a rota of one in two. The average house officer had 20.4 inpatients under his or her care and admitted 23.2 patients per week. Sixty two per cent of house officers (459/740) felt that they spent an excessive amount of time on non-medical tasks of no educational merit; 75% (546/725) had never received adequate guidance on breaking bad news and 64% (467/729) had never received adequate guidance on pain control; 34% (249/731) did not feel confident that they could perform cardiopulmonary resuscitation unsupervised. House officers would tend to recommend their post to a friend., Conclusions: There are deficiencies in preregistration training in the four Thames regions. The General Medical Council's requirements are not being heeded.
- Published
- 1990
- Full Text
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18. Preregistration house officers in the four Thames regions: II. Comparison of education and workload in teaching and non-teaching hospitals.
- Author
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Dent TH, Gillard JH, Aarons EJ, Crimlisk HL, and Smyth-Pigott PJ
- Subjects
- Accreditation standards, Attitude of Health Personnel, England, Female, Humans, Job Satisfaction, Male, Surveys and Questionnaires, Work Schedule Tolerance psychology, Education, Medical, Graduate standards, Hospitals, Teaching standards, Internship and Residency standards
- Abstract
Objective: To detect differences in the education and workload of preregistration house officers working in teaching and non-teaching hospitals., Design: A postal questionnaire., Setting: Teaching and non-teaching hospitals in the four Thames regions., Participants: 1064 Preregistration house officers., Results: Response rate was 61% for teaching hospitals and 73% for non-teaching hospitals. House officers in teaching hospitals had significantly fewer inpatients under their care (house physicians 16.9 v 22.9, house surgeons 17.9 v 20.3) and admitted fewer emergency patients per week (house physicians 7.7 v 12.7, house surgeons 6.5 v 9.8). More house officers in teaching hospitals reported that they had too few patients to provide adequate clinical experience. More of their time was consumed by administrative activities devoid of educational value., Conclusion: Preregistration house officer posts at teaching hospitals provide less clinical activity and are perceived as less educationally satisfactory by their holders than those elsewhere.
- Published
- 1990
- Full Text
- View/download PDF
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