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1.
BMC Public Health ; 23(1): 424, 2023 03 03.
Article in English | MEDLINE | ID: mdl-36869343

ABSTRACT

BACKGROUND: A relationship between smoking and interpersonal influences has been well established within the literature. There have been cultural shifts in denormalisation and a reduction in tobacco smoking in many countries. Hence there is a need to understand social influences on adolescents' smoking across smoking normalisation contexts. METHODS: The search was conducted in July 2019 and updated in March 2022 within 11 databases and secondary sources. Search terms included schools, adolescents, smoking, peers, social norms and qualitative research. Screening was conducted by two researchers independently and in duplicate. Study quality was assessed using the eight-item Evidence for Policy and Practice Information and Co-ordinating Centre (EPPI-centre) tool for the appraisal of qualitative studies. Results were synthesised using a meta-narrative lens for meta-ethnography and compared across smoking normalisation contexts. RESULTS: Forty one studies were included and five themes were developed, mapping onto the socio ecological model. The social processes by which adolescents take up smoking differed according to a mixture of school type, peer group structure and the smoking culture within the school, as well as the wider cultural context. Data available from smoking denormalised contexts, described changes in social interactions around smoking to cope with its stigmatisation. This was manifested through i) direct peer influence, whereby subtle techniques were employed, ii) group belonging whereby smoking was less likely to be seen as a key determinant of group membership and smoking was less commonly reported to be used as a social tool, and iii) popularity and identity construction, whereby smoking was perceived more negatively in a denormalised context, compared with a normalised context. CONCLUSIONS: This meta-ethnography is the first study to demonstrate, drawing on international data, that peer processes in adolescent smoking may undergo changes as smoking norms within society change. Future research should focus on understanding differences across socioeconomic contexts, to inform the adaptation of interventions.


Subject(s)
Friends , Tobacco Control , Adolescent , Humans , Smoking , Tobacco Smoking , Qualitative Research , Anthropology, Cultural
2.
Chem Rev ; 122(21): 16051-16109, 2022 11 09.
Article in English | MEDLINE | ID: mdl-36173689

ABSTRACT

Nature offers inspiration for developing technologies that integrate the capture, conversion, and storage of solar energy. In this review article, we highlight principles of natural photosynthesis and artificial photosynthesis, drawing comparisons between solar energy transduction in biology and emerging solar-to-fuel technologies. Key features of the biological approach include use of earth-abundant elements and molecular interfaces for driving photoinduced charge separation reactions that power chemical transformations at global scales. For the artificial systems described in this review, emphasis is placed on advancements involving hybrid photocathodes that power fuel-forming reactions using molecular catalysts interfaced with visible-light-absorbing semiconductors.


Subject(s)
Photosynthesis , Solar Energy , Catalysis , Light , Semiconductors
3.
BMC Public Health ; 22(1): 142, 2022 Jan 20.
Article in English | MEDLINE | ID: mdl-35057769

ABSTRACT

BACKGROUND: Whilst prevalence of youth smoking in middle and high income countries has decreased, inequality has prevailed. The introduction of legislation regulating tobacco use in public spaces varies across countries, impacting the tobacco control context. Thus reviewing our knowledge of how social networks may influence smoking differently within different contexts is required to facilitate the development of context-specific interventions. METHODS: The search, conducted on 31st May 2019, included the following smoking-related terms; schools, adolescents, peers and social networks. Inclusion and exclusion criteria were applied throughout the title and abstract screening and full text screening. Quality assessment and synthesis followed. Studies were narratively synthesised to identify changes according to legislative context. This synthesis was conducted separately for findings relating to three categories: socioeconomic status; social selection and influence; and network position. RESULTS: Thirty studies were included. Differences in the relationship between network characteristics and smoking according to socioeconomic status were measured in five out of fifteen studies in Europe. Results varied across studies, with differences in network characteristics and their association with smoking varying both between schools of a differing and those of a similar socioeconomic composition. For studies conducted both before and after the introduction of comprehensive smoking legislation, the evidence for selection processes was more consistent than influence, which varied according to reciprocity. Findings showed that isolates were more likely to smoke and in-degree and out-degree centrality were related to smoking both before and after the introduction of legislation. The relationship between popularity and smoking was contingent on school level smoking prevalence in studies conducted before the introduction of legislation, but not after. CONCLUSIONS: Overall, effects according to socioeconomic status were underreported in the included studies and no consistent evidence of change after the introduction of a comprehensive smoking ban was observed. Further network analyses are required using more recent data to obtain a comprehensive understanding of how network processes may influence smoking differently according to socioeconomic status, and how adaptation could be used to enhance intervention effectiveness. SYSTEMATIC REVIEW REGISTRATION: International Prospective Register of Systematic Reviews (PROSPERO) registration number: CRD42019137358 .


Subject(s)
Nicotiana , Smoking Prevention , Adolescent , Humans , Smoking/epidemiology , Social Class , Tobacco Use
4.
BMC Public Health ; 19(1): 698, 2019 Jun 06.
Article in English | MEDLINE | ID: mdl-31170941

ABSTRACT

BACKGROUND: While schools have potential to contribute to children's health and healthy behaviour, embedding health promotion within complex school systems is challenging. The 'Healthy Primary School of the Future' (HPSF) is an initiative that aims to integrate health and well-being into school systems. Central to HPSF are two top-down changes that are hypothesized as being positively disruptive to the Dutch school system: daily free healthy lunches and structured physical activity sessions. These changes are expected to create momentum for bottom-up processes leading to additional health-promoting changes. Using a programme theory, this paper explores the processes through which HPSF and the school context adapt to one another. The aim is to generate and share knowledge and experiences on how to implement changes in the complex school system to integrate school health promotion. METHODS: The current study involved a mixed methods process evaluation with a contextual action-oriented research approach. The processes of change were investigated in four Dutch primary schools during the development year (2014-2015) and the first two years of implementation (2015-2017) of HPSF. The schools (each with 15-26 teachers and 233-389 children) were in low socio-economic status areas. Measurements included interviews, questionnaires, observations, and analysis of minutes of meetings. RESULTS: Top-down advice, combined with bottom-up involvement and external practical support were key facilitators in embedding HPSF within the schools' contexts. Sufficient coordination and communication at the school level, team cohesion, and feedback loops enhanced implementation of the changes. Implementation of the healthy lunch appeared to be disruptive and create momentum for additional health-promoting changes. CONCLUSIONS: Initiating highly visible positive disruptions to improve school health can act as a catalyst for wider school health promotion efforts. Conditions to create a positive disruption are enough time, and sufficient bottom-up involvement, external support, team cohesion and coordination. The focus should be on each specific school, as each school has their own starting point and process of change. TRIAL REGISTRATION: The study was retrospectively registered in the ClinicalTrials.gov database on 14 June 2016 (NCT02800616).


Subject(s)
Health Services Research , Process Assessment, Health Care , Program Evaluation , School Health Services/organization & administration , Child , Female , Health Behavior , Humans , Male , Netherlands , Retrospective Studies , Schools , Surveys and Questionnaires
5.
Pastor Care Educ ; 36(4): 297-312, 2018.
Article in English | MEDLINE | ID: mdl-30555275

ABSTRACT

A growing evidence base indicates that health and educational attainment are synergistic goals. Students' relationships with teachers and other students in the school environment are consistently predictive of a broad range of health and well-being outcomes. Despite the potential importance of relationships between students and a broad range of actors within a school, research tends to reduce 'school staff' to 'teachers'. Previous research has highlighted incongruence between the power imbalance within a teacher-student relationship and the dynamics required to address health and well-being-related issues. To date, there has been no investigation into how the nature of the relationships between students and support staff may differ from those with teaching staff. This article aims to conceptualise the role of support versus teaching staff in promoting health and well-being to understand how school system functioning may affect relationships between school staff and students. Semi-structured interviews were conducted to obtain the perceptions of staff, students and parents within four exploratory case study schools of differing socio-economic status, geographical location and size. In line with the Theory of Health Promoting Schools and Human Functioning, findings demonstrated that the prominence of well-being relies on provision of staffing structures which include a team of support staff to work alongside teaching staff to provide the time and space to deal with issues immediately and build trust and rapport in a one-to-one setting. Further mixed-methods research is required to investigate how staffing structures can facilitate the development of mutually trusting relationships between staff and students.

6.
Inorg Chem ; 56(20): 12178-12185, 2017 Oct 16.
Article in English | MEDLINE | ID: mdl-28972366

ABSTRACT

Hybrid materials that link light capture and conversion technologies with the ability to drive reductive chemical transformations are attractive as components in photoelectrosynthetic cells. We show that thin-film polypyridine surface coatings provide a molecular interface to assemble cobalt porphyrin catalysts for hydrogen evolution onto a visible-light-absorbing p-type gallium phosphide semiconductor. Spectroscopic techniques, including grazing angle attenuated total reflection Fourier transform infrared spectroscopy, confirm that the cobalt centers of the porphyrin macrocycles coordinate to pyridyl nitrogen sites of the organic surface coating. The cobalt porphyrin surface concentration and fraction of pyridyl sites coordinated to a cobalt center are quantified using complementary methods of ellipsometry, inductively coupled plasma mass spectrometry, and X-ray photoelectron spectroscopy. In aqueous solutions under simulated solar illumination the modified cathode is photochemically active for hydrogen production, generating the product gas with near-unity Faradaic efficiency at a rate of ≈10 µL min-1 cm-2 when studied in a three-electrode configuration and polarized at the equilibrium potential of the H+/H2 couple. This equates to a photoelectrochemical hydrogen evolution reaction activity of 17.6 H2 molecules s-1 Co-1, the highest value reported to date for a molecular-modified semiconductor. Key features of the functionalized photocathode include (1) the relative ease of synthetic preparation made possible by application of an organic surface coating that provides molecular recognition sites for immobilizing the cobalt porphyrin complexes at the semiconductor surface and (2) the use of visible light to drive cathodic fuel-forming reactions in aqueous solutions with no added organic acids or sacrificial chemical reductants.

7.
Chem Sci ; 8(1): 253-259, 2017 Jan 01.
Article in English | MEDLINE | ID: mdl-28451172

ABSTRACT

We report a direct one-step method to chemically graft metalloporphyrins to a visible-light-absorbing gallium phosphide semiconductor with the aim of constructing an integrated photocathode for light activating chemical transformations that include capturing, converting, and storing solar energy as fuels. Structural characterization of the hybrid assemblies is achieved using surface-sensitive spectroscopic methods, and functional performance for photoinduced hydrogen production is demonstrated via three-electrode electrochemical testing combined with photoproduct analysis using gas chromatography. Measurements of the total per geometric area porphyrin surface loadings using a cobalt-porphyrin based assembly indicate a turnover frequency ≥3.9 H2 molecules per site per second, representing the highest reported to date for a molecular-catalyst-modified semiconductor photoelectrode operating at the H+/H2 equilibrium potential under 1-sun illumination.

8.
Eur J Public Health ; 26(6): 964-968, 2016 12.
Article in English | MEDLINE | ID: mdl-27335332

ABSTRACT

BACKGROUND: Associations of the strength of school smoking policies with cigarette, e-cigarette and cannabis use in Wales were examined. METHODS: Nationally representative cross-sectional survey of pupils aged 11-16 years (N=7376) in Wales. Senior management team members from 67 schools completed questionnaires about school smoking policies, substance use education and tobacco cessation initiatives. Multi-level, logistic regression analyses investigated self-reported cigarette, e-cigarette and cannabis use, for all students and those aged 15-16 years. RESULTS: Prevalence of current smoking, e-cigarette use and cannabis use in the past month were 5.3%, 11.5% and 2.9%, respectively. Of schools that provided details about smoking policies (66/67), 39.4% were strong (written policy applied to everyone in all locations), 43.9% were moderate (written policy not applied to everyone in all locations) and 16.7% had no written policy. There was no evidence of an association of school smoking policies with pupils' tobacco or e-cigarette use. However, students from schools with a moderate policy [OR = 0.47; 95% (confidence interval) CI: 0.26-0.84] were less likely to have used cannabis in the past month compared to schools with no written policy. This trend was stronger for students aged 15-16 years (moderate policy: OR = 0.42; 95% CI: 0.22-0.80; strong policy: OR = 0.45; 95% CI: 0.23-0.87). CONCLUSIONS: School smoking policies may exert less influence on young people's smoking behaviours than they did during times of higher adolescent smoking prevalence. Longitudinal studies are needed to examine the potential influence of school smoking policies on cannabis use and mechanisms explaining this association.


Subject(s)
Schools/statistics & numerical data , Schools/standards , Smoke-Free Policy , Smoking Devices/statistics & numerical data , Smoking/epidemiology , Adolescent , Child , Cross-Sectional Studies , Electronic Nicotine Delivery Systems/statistics & numerical data , Female , Health Behavior , Humans , Male , Marijuana Smoking/epidemiology , Tobacco Products/statistics & numerical data , Wales/epidemiology
9.
Public Health Nutr ; 14(2): 219-26, 2011 Feb.
Article in English | MEDLINE | ID: mdl-20602868

ABSTRACT

OBJECTIVE: The present study evaluated the impact of a national school programme of universal free healthy breakfast provision in Wales, UK. DESIGN: A cluster randomised controlled trial with repeated cross-sectional design and a 12-month follow-up. Primary outcomes were breakfast skipping, breakfast diet and episodic memory. Secondary outcomes were frequency of eating breakfast at home and at school, breakfast attitudes, rest-of-day diet and class behaviour. SETTING: Primary schools in nine local education authority areas. SUBJECTS: A total of 4350 students (aged 9-11 years) at baseline and 4472 at follow-up in 111 schools. RESULTS: Students in intervention schools reported significantly higher numbers of healthy food items consumed at breakfast and more positive attitudes towards breakfast eating at 12 months. Parents in intervention schools reported significantly higher rates of consumption of breakfast at school and correspondingly lower rates of breakfast consumption at home. No other significant differences were found. CONCLUSIONS: The intervention did not reduce breakfast skipping; rather, pupils substituted breakfast at home for breakfast at school. However, there were improvements in children's nutritional intake at breakfast time, if not the rest of the day, and more positive attitudes to breakfast, which may have implications for life-course dietary behaviours. There was no impact on episodic memory or classroom behaviour, which may require targeting breakfast skippers.


Subject(s)
Child Nutritional Physiological Phenomena/physiology , Food Services/economics , Food Services/standards , Health Promotion/methods , School Health Services/organization & administration , Students/psychology , Attitude to Health , Child , Cluster Analysis , Costs and Cost Analysis , Female , Health Behavior , Health Education/economics , Health Education/methods , Health Promotion/economics , Humans , Male , Nutrition Surveys , Program Evaluation , School Health Services/economics , Schools , Wales
10.
Eur J Clin Nutr ; 62(4): 511-8, 2008 Apr.
Article in English | MEDLINE | ID: mdl-17375113

ABSTRACT

OBJECTIVE: Development and validation of a questionnaire to measure children's attitudes towards breakfast. DESIGN: A pilot study was used to select questionnaire items and assess test-retest reliability. The questionnaire was then administered to a larger sample of children together with a dietary recall questionnaire. Randomly selected subsets of these children also completed a dietary recall interview or their parents were asked to complete a questionnaire relating to their child's breakfast eating habits. SETTING: Primary schools in south, west and north Wales, UK. SUBJECTS: A total of 2495 children (199 in pilot testing, 2382 in the main study) in years 5 and 6 (aged 9-11 years). RESULTS: The 13-item scale showed good construct validity, high internal reliability and acceptable test-retest reliability. Boys displayed more positive attitudes towards breakfast than girls but differences between the two age groups did not reach statistical significance. Children who did not skip breakfast displayed more positive attitudes than children who skipped breakfast. In addition, more positive attitudes towards breakfast were significantly correlated with consumption of a greater number of 'healthy' foods for breakfast (i.e., fruit, bread, cereal, milk products), consumption of fewer 'unhealthy' foods for breakfast (i.e., sweet items, crisps) and parental perceptions that their child usually ate a healthy breakfast. CONCLUSIONS: The breakfast attitudes questionnaire is a robust measure that is relatively quick to administer and simple to score. These qualities make it ideal for use where validity at the individual level is important or where more time-consuming dietary measures are not feasible.


Subject(s)
Attitude to Health , Child Nutritional Physiological Phenomena/physiology , Eating , Surveys and Questionnaires/standards , Child , Feeding Behavior , Female , Humans , Male , Mental Recall , Pilot Projects , Reproducibility of Results , Sensitivity and Specificity
11.
Science ; 318(5853): 1128-31, 2007 Nov 16.
Article in English | MEDLINE | ID: mdl-18006743

ABSTRACT

Megasplay faults, very long thrust faults that rise from the subduction plate boundary megathrust and intersect the sea floor at the landward edge of the accretionary prism, are thought to play a role in tsunami genesis. We imaged a megasplay thrust system along the Nankai Trough in three dimensions, which allowed us to map the splay fault geometry and its lateral continuity. The megasplay is continuous from the main plate interface fault upwards to the sea floor, where it cuts older thrust slices of the frontal accretionary prism. The thrust geometry and evidence of large-scale slumping of surficial sediments show that the fault is active and that the activity has evolved toward the landward direction with time, contrary to the usual seaward progression of accretionary thrusts. The megasplay fault has progressively steepened, substantially increasing the potential for vertical uplift of the sea floor with slip. We conclude that slip on the megasplay fault most likely contributed to generating devastating historic tsunamis, such as the 1944 moment magnitude 8.1 Tonankai event, and it is this geometry that makes this margin and others like it particularly prone to tsunami genesis.

12.
Eur J Clin Nutr ; 61(3): 420-30, 2007 Mar.
Article in English | MEDLINE | ID: mdl-16988648

ABSTRACT

OBJECTIVE: To evaluate the validity and reliability of a dietary recall questionnaire, designed for group-level comparisons of foods eaten at breakfast and intake of fruits, vegetables, sweet items and crisps. DESIGN: Validity was assessed relative to 24-h dietary recall interviews, and reliability by comparing the baseline data with 4-month follow-up data. SUBJECTS AND SETTING: Fifty-eight schools took part in the validity assessments, with 374 children completing both measures. Reliability was assessed using 29 schools, with 1233 children at baseline and 1033 at follow-up. Children were aged 9-11 years and schools were located in socio-economically deprived areas of Wales. RESULTS: Results indicated moderate to substantial agreements for most foods eaten at breakfast on the day of reporting and fair to moderate agreements for breakfast foods the previous day. For items throughout the rest of the previous day, agreement was fair to substantial during school hours, but slight after school. Correlations were moderate in terms of 'healthy' items and 'unhealthy' items consumed at breakfast on the day of reporting, but weaker for the previous breakfast. Correlations between measures in terms of fruits, vegetables, sweet items and crisps throughout the rest of the previous day were fair to moderate. The measure demonstrated fair to substantial group-level reliability. CONCLUSIONS: The questionnaire, while subject to a number of limitations, gives an adequately valid and reliable overview of selected aspects of children's diet. It is likely to be of value at group-level in randomized controlled trials of school-based interventions.


Subject(s)
Diet/standards , Fruit , Self Disclosure , Surveys and Questionnaires/standards , Vegetables , Child , Child Nutritional Physiological Phenomena , Feeding Behavior , Female , Humans , Male , Mental Recall , Nutrition Assessment , Nutritional Requirements , Reproducibility of Results , Schools , Sensitivity and Specificity , Wales
13.
Arthritis Rheum ; 44(10): 2235-41, 2001 Oct.
Article in English | MEDLINE | ID: mdl-11665963

ABSTRACT

OBJECTIVE: To compare the efficacy of minocycline with that of a conventional disease-modifying antirheumatic drug (DMARD), hydroxychloroquine, in patients with early seropositive rheumatoid arthritis (RA). METHODS: Sixty patients with seropositive RA of <1 year's duration who had not been previously treated with DMARDs were randomized to receive minocycline, 100 mg twice per day, or hydroxychloroquine, 200 mg twice per day, in a 2-year, double-blind protocol. All patients also received low-dose prednisone. The primary end points of the study were 1) the percentage of patients with an American College of Rheumatology (ACR) 50% improvement (ACR50) response at 2 years, and 2) the dosage of prednisone at 2 years. RESULTS: Minocycline-treated patients were more likely to achieve an ACR50 response at 2 years compared with hydroxychloroquine-treated patients (60% compared with 33%, respectively; P = 0.04). Minocycline-treated patients were also receiving less prednisone at 2 years compared with the hydroxychloroquine group (mean 0.81 mg/day compared with 3.21 mg/day, respectively; P < 0.01). In addition, patients treated with minocycline were more likely to have been completely tapered off prednisone (P = 0.03). Trends favoring the minocycline treatment group were seen when outcomes were assessed according to components of the ACR core criteria set, with the differences reaching statistical significance for patient's global assessment of disease activity (P = 0.004). CONCLUSION: Minocycline is an effective DMARD in patients with early seropositive RA. Patients treated with minocycline were more likely to achieve an ACR50 response and did so while receiving less prednisone. In addition, minocycline-treated patients were more likely to have discontinued treatment with prednisone at 2 years.


Subject(s)
Anti-Bacterial Agents/administration & dosage , Antirheumatic Agents/administration & dosage , Arthritis, Rheumatoid/drug therapy , Hydroxychloroquine/administration & dosage , Minocycline/administration & dosage , Adult , Aged , Arthritis, Rheumatoid/immunology , Arthritis, Rheumatoid/physiopathology , Double-Blind Method , Female , Humans , Male , Middle Aged , Serologic Tests , Treatment Outcome
14.
Otol Neurotol ; 22(3): 328-34, 2001 May.
Article in English | MEDLINE | ID: mdl-11347635

ABSTRACT

OBJECTIVE: This study evaluates the U.S. experience with the first 40 patients who have undergone audiologic rehabilitation using the BAHA bone-anchored hearing aid. STUDY DESIGN: This study is a multicenter, nonblinded, retrospective case series. SETTING: Twelve tertiary referral medical centers in the United States. PATIENTS: Eligibility for BAHA implantation included patients with a hearing loss and an inability to tolerate a conventional hearing aid, with bone-conduction pure tone average levels at 60 dB or less at 0.5, 1, 2, and 4 kHz. INTERVENTION: Patients who met audiologic and clinical criteria were implanted with the Bone-Anchored Hearing Aid (BAHA, Entific Corp., Gothenburg, Sweden). MAIN OUTCOME MEASURES: Preoperative air- and bone-conduction thresholds and air-bone gap; postoperative BAHA-aided thresholds; hearing improvement as a result of implantation; implantation complications; and patient satisfaction. RESULTS: The most common indications for implantation included chronic otitis media or draining ears (18 patients) and external auditory canal stenosis or aural atresia (7 patients). Overall, each patient had an average improvement of 32+/-19 dB with the use of the BAHA. Closure of the air-bone gap to within 10 dB of the preoperative bone-conduction thresholds (postoperative BAHA-aided threshold vs. preoperative bone-conduction threshold) occurred in 32 patients (80%), whereas closure to within 5 dB occurred in 24 patients (60%). Twelve patients (30%) demonstrated 'overclosure' of the preoperative bone-conduction threshold of the better hearing ear. Complications were limited to local infection and inflammation at the implant site in three patients, and failure to osseointegrate in one patient. Patient response to the implant was uniformly satisfactory. Only one patient reported dissatisfaction with the device. CONCLUSIONS: The BAHA bone-anchored hearing aid provides a reliable and predictable adjunct for auditory rehabilitation in appropriately selected patients, offering a means of dramatically improving hearing thresholds in patients with conductive or mixed hearing loss who are otherwise unable to benefit from traditional hearing aids.


Subject(s)
Hearing Aids , Hearing Loss, Conductive/rehabilitation , Acoustic Stimulation/instrumentation , Adult , Aged , Aged, 80 and over , Bone Conduction/physiology , Equipment Design , Female , Hearing Loss, Conductive/physiopathology , Humans , Male , Middle Aged , Postoperative Care , Preoperative Care , Retrospective Studies
15.
Laryngoscope ; 111(12): 2109-13, 2001 Dec.
Article in English | MEDLINE | ID: mdl-11802006

ABSTRACT

OBJECTIVES/HYPOTHESIS: The purpose of this study is to evaluate the outcomes and complications associated with early gold weight implantation for management of the paralyzed eyelid. STUDY DESIGN: A retrospective review of clinical charts was conducted to analyze results and complications in patients who underwent gold weight implantation within 30 days of onset of facial nerve paralysis and to compare these outcomes with those of patients who received gold weights after a traditional waiting period. METHODS: The charts of 67 patients who underwent gold weight implantation during the time period of this study were reviewed. Patients were categorized into "early" or "late" groups based on whether gold weights were implanted before or after 30 days following onset of facial nerve paralysis. Etiology of facial nerve paralysis, degree of paralysis, timing of surgery, and outcomes of the procedure, including degree of lid closure and complication rates, were compared between the two groups. RESULTS: Of the 67 patients, 49.3% underwent gold weight implantation within 30 days of onset of paralysis and 50.7% received gold weights after 30 days. A total of 89.2% of all patients who underwent implantation in this study achieved satisfactory lid closure after the initial procedure. Both early and late implantation groups had statistically similar lid closure and complication rates. CONCLUSIONS: Implantation of gold weights within 30 days of paralysis is as effective for the management of paralytic lagophthalmos as delayed implantation and is not associated with higher complication rates. Early implantation of gold weights should be considered in all patients with paralytic lagophthalmos.


Subject(s)
Eyelid Diseases/rehabilitation , Facial Paralysis/rehabilitation , Gold , Prostheses and Implants , Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Postoperative Complications/etiology , Retrospective Studies , Treatment Outcome
17.
Skull Base Surg ; 10(2): 89-93, 2000.
Article in English | MEDLINE | ID: mdl-17171108

ABSTRACT

Giant cell reparative granuloma (GCRG) is an unusual, benign bone lesion that most commonly affects the maxilla and mandible; skull involvement is rare. The etiology is uncertain but may be related to trauma. GCRG is difficult to distinguish from giant cell tumor of the bone and has a lower recurrence rate. Thirteen reports of temporal bone GCRG in 11 patients have been reported. One report of a petrous GCRG in a 3-year-old girl has been identified. A 38-year-old male presented with a 2-year history of fullness in his left ear, ipsilateral hearing loss, and intermittent cacosmia. Computed tomography and magnetic resonance imaging revealed a large left-sided anterior temporal extradural mass. The patient underwent a left frontotemporal craniotomy and resection of a left temporal fossa tumor that involved the petrous and squamous parts of the temporal bone. The patient's post-operative course was uneventful, except for increased hearing loss secondary to opening of the epitympanum. Follow-up at one month revealed no other problems. Histopathology of the specimen was consistent with a giant cell reparative granuloma.

18.
Arthritis Rheum ; 42(8): 1691-5, 1999 Aug.
Article in English | MEDLINE | ID: mdl-10446869

ABSTRACT

OBJECTIVE: Rheumatoid arthritis (RA) causes substantial morbidity and mortality, and current treatments are suboptimal. Recent studies have demonstrated the short-term efficacy of minocycline in the treatment of patients with early RA. This study was undertaken to compare patients treated with conventional therapy in the early phase of their RA and those treated with minocycline, after 4 years of followup. METHODS: Forty-six patients with seropositive RA of <1 year's duration had been enrolled in a double-blind study of minocycline (100 mg twice daily) versus placebo. After the blinded portion of the study (3-6 months, depending upon response), all patients were treated with conventional therapy. This report compares those patients randomized to receive placebo for 3 months and then conventional therapy for the duration of 4 years versus those originally randomized to receive minocycline. RESULTS: Twenty of the 23 original minocycline-treated patients and 18 of the 23 original placebo-treated patients were available for followup (mean 4 years). At followup, RA was in remission (American College of Rheumatology criteria) without disease-modifying antirheumatic drug (DMARD) or steroid therapy in 8 of the patients originally treated with minocycline compared with 1 patient in the placebo group (P = 0.02). Ten patients in the minocycline group versus 16 in the original placebo group currently require DMARD therapy (P = 0.02). CONCLUSION: Among patients with seropositive RA, remissions are more frequent and the need for DMARD therapy is less in those treated early in the disease course with minocycline compared with those treated with conventional therapy delayed by an average of only 3 months. Minocycline appears to be an effective therapy for early RA; further investigation into its mechanism of action is needed.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Arthritis, Rheumatoid/drug therapy , Minocycline/therapeutic use , Anti-Bacterial Agents/toxicity , Arthritis, Rheumatoid/blood , Double-Blind Method , Female , Follow-Up Studies , Gastrointestinal Hemorrhage/chemically induced , Humans , Male , Placebos , Time Factors
20.
J Clin Rheumatol ; 5(5): 255-8, 1999 Oct.
Article in English | MEDLINE | ID: mdl-19078404

ABSTRACT

Increasing numbers of Americans are using alternative therapies, particularly dietary supplements. Despite obvious economic and health-related implications of supplement use, little is known about the frequency with which rheumatology patients use these agents. We surveyed 298 consecutive rheumatology outpatients and 274 general medicine outpatients concerning their use of dietary supplements within the previous 2 years. Overall, 30.6% of patients reported using dietary supplements. Although there was not a significant difference in the frequency of use between clinics, patterns of use in the clinics differed. Rheumatology patients were much more likely to have used glucosamine sulfate or chondroitin sulfate, whereas general medicine patients were more likely to have used garlic and aloe vera. Higher levels of education were associated with an increased frequency of supplement use. Additionally, rheumatology patients were more likely to have discussed the use of these agents with a physician, although at a disappointingly low rate. The frequency with which patients use such agents underscores use of dietary supplements as a growing public health concern. Given the implications of supplement use, physicians and patients must communicate better about the use of these agents.

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