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Biomedical subjects

Matthew J Thompson

Publications and source records attributed to Matthew J Thompson.

16 recordsLinked to original sources

Laser in situ keratomileusis for astigmatism following laser thermal keratoplasty.

We describe 2 cases in which a staged laser in situ keratomileusis procedure was used to treat residual hyperopia and astigmatism after laser thermal keratoplasty. The procedure successfully reduced the spherical equivalent refractive error and residual astigmatism. All eyes maintained their best spectacle-corrected visual acuity and had an uncorrected visual acuity of at least 20/25 at the end of follow-up.

Adult↗

Clinical recognition of meningococcal disease in children and adolescents.

BACKGROUND: Meningococcal disease is a rapidly progressive childhood infection of global importance. To our knowledge, no systematic quantitative research exists into the occurrence of symptoms before admission to hospital. METHODS: Data were obtained from questionnaires answered by parents and from primary-care records for the course of illness before admission to hospital in 448 children (103 fatal, 345 non-fatal), aged 16 years or younger, with meningococcal disease. In 373 cases, diagnosis was confirmed with microbiological techniques. The rest of the children were included because they had a purpuric rash, and either meningitis or evidence of septicaemic shock. Results were standardised to UK case-fatality rates. FINDINGS: The time-window for clinical diagnosis was narrow. Most children had only non-specific symptoms in the first 4-6 h, but were close to death by 24 h. Only 165 (51%) children were sent to hospital after the first consultation. The classic features of haemorrhagic rash, meningism, and impaired consciousness developed late (median onset 13-22 h). By contrast, 72% of children had early symptoms of sepsis (leg pains, cold hands and feet, abnormal skin colour) that first developed at a median time of 8 h, much earlier than the median time to hospital admission of 19 h. INTERPRETATION: Classic clinical features of meningococcal disease appear late in the illness. Recognising early symptoms of sepsis could increase the proportion of children identified by primary-care clinicians and shorten the time to hospital admission. The framework within which meningococcal disease is diagnosed should be changed to emphasise identification of these early symptoms by parents and clinicians.

Adolescent↗

Ocular tuberculosis.

Explore the source record for details and available documents.

Antitubercular Agents↗

Characterizing the general surgery workforce in rural America.

BACKGROUND: General surgeons form a crucial component of the medical workforce in rural areas of the United States. Any decline in their numbers could have profound effects on access to adequate health care in such areas. HYPOTHESIS: We hypothesize that the rural areas of the United States are relatively undersupplied with general surgeons. DESIGN AND SETTING: The American Medical Association's Physician Masterfile was used to identify all clinically active general surgeons as well as their locations and characteristics. Their geographic distribution was examined using the ZIP code version of the Rural-Urban Commuting Areas. Surgeons were classified as practicing in urban areas, large rural areas, or small/isolated rural areas. RESULTS: There are currently 17 243 general surgeons practicing in the United States. Nationally, the number of general surgeons per population of 100 000 varies from 6.53 in urban areas to 7.71 in large rural areas and 4.67 in small/isolated rural areas. Only 10.6% of the nation's general surgeons are female. Wide variations in numbers of general surgeons were found between and within individual states. General surgeons in the smallest rural areas are more likely than those in urban areas to be male (92.7% vs 88.3%, P<.001), 50 years of age or older (51.6% vs 42.1%, P<.001), or international medical graduates (25.2% vs 20.1%, P<.001). CONCLUSIONS: The overall size of the rural general surgical workforce has remained static over the last decade, but its demographic characteristics suggest that numbers will decline. Many rural residents have limited access to surgical services. Steps to reverse this trend are needed to preserve the viability of health care in many parts of rural America.

Adult↗

The migration of physicians from sub-Saharan Africa to the United States of America: measures of the African brain drain.

BACKGROUND: The objective of this paper is to describe the numbers, characteristics, and trends in the migration to the United States of physicians trained in sub-Saharan Africa. METHODS: We used the American Medical Association 2002 Masterfile to identify and describe physicians who received their medical training in sub-Saharan Africa and are currently practicing in the USA. RESULTS: More than 23% of America's 771 491 physicians received their medical training outside the USA, the majority (64%) in low-income or lower middle-income countries. A total of 5334 physicians from sub-Saharan Africa are in that group, a number that represents more than 6% of the physicians practicing in sub-Saharan Africa now. Nearly 86% of these Africans practicing in the USA originate from only three countries: Nigeria, South Africa and Ghana. Furthermore, 79% were trained at only 10 medical schools. CONCLUSIONS: Physician migration from poor countries to rich ones contributes to worldwide health workforce imbalances that may be detrimental to the health systems of source countries. The migration of over 5000 doctors from sub-Saharan Africa to the USA has had a significantly negative effect on the doctor-to-population ratio of Africa. The finding that the bulk of migration occurs from only a few countries and medical schools suggests policy interventions in only a few locations could be effective in stemming the brain drain.

Journal Article↗

The role of international medical graduates in America's small rural critical access hospitals.

CONTEXT: Critical access hospitals (CAHs) are a federal Medicare category for isolated rural facilities with 15 or fewer acute care beds that receive cost-based reimbursement from Medicare. PURPOSE: This study examines the role of foreign-born international medical graduates (IMGs) in the staffing of CAHs. METHODS: Chief executive officers (CEOs) of CAH facilities answered a telephone survey on their use of IMGs and the characteristics of those IMGs in winter 2002 (388 responded, for a 96% response rate). This descriptive report presents roles and characteristics of IMGs in CAH facilities and the opinions of the CEOs about these practitioners. FINDINGS: Overall, 1 (24%) in 4 admitting physicians in CAHs are graduates of non-US medical schools (compared with 23% of physicians nationally), although the rates are higher for CAHs in persistent poverty counties, CAHs that report recruitment problems, and CAHs with smaller medical staffs. Hospitals east of the Mississippi River are more heavily reliant on IMGs than hospitals in the west. Most IMGs are internists (59%) and most (61%) come from India, the Philippines, or Pakistan. Hospital administrators rate the clinical skills of their IMGs highly and their interpersonal skills only slightly lower. Almost half of CAH administrators said their communities recruited their first IMGs during or after 1994, the year of pro-IMG legislative changes. CONCLUSION: IMG physicians play a significant and possibly growing role in staffing CAHs.

Foreign Medical Graduates↗

Educational effects of international health electives on U.S. and Canadian medical students and residents: a literature review.

PURPOSE: To evaluate the educational effects of international health electives (IHEs) on participants. IHEs are a popular component of many medical school and residency program curricula, and are reported to provide benefits in knowledge, skills, and attitudes. METHOD: The authors reviewed all studies reported in Medline and ERIC databases that have assessed the educational effects of IHEs on U.S. and Canadian medical students and residents. Data extracted from eligible studies included type and duration of IHE, details of survey instrument, response rate, comparison group, and outcomes. Seven of the eight eligible studies assessed educational effects on participants using self-reported questionnaires; a single study used an objective measurement of knowledge. RESULTS: Eight studies involving 522 medical students and 166 residents met inclusion criteria. IHEs appear to be associated with career choices in underserved or primary care settings and recruitment to residency programs. They also appear to have positive effects on participants' clinical skills, certain attitudes, and knowledge of tropical medicine. CONCLUSION: IHEs appear to have positive educational influences on participants' knowledge, skills, and attitudes. Furthermore, IHEs may play some role both in recruiting residents and in their choices of careers in primary care and underserved settings. Future directions for research in this field are discussed.

Canada↗

Immunizations for international travel.

Many infections encountered by international travelers can be prevented by adherence to personal protective measures and appropriate vaccinations. This review outlined the incidence and importance of the major vaccine-preventable infectious diseases encountered by U.S. travelers, as well as the indications, contraindications, and side effects of available vaccines. Official proof of yellow fever vaccine often is required for entry into some countries. Based on endemic or epidemic infections at destinations, planned activities, and age and medical history of international travelers, other vaccines may be recommended. Many clinicians will be familiar with some of the infections and vaccines that may be used in travelers; other vaccines may be encountered infrequently and associated with significant risk of adverse effects. Since vaccines do not provide complete protection and some travel-related infections do not have vaccines available yet (e.g., malaria and dengue fever), physicians need to be vigilant concerning febrile illness in returning travelers.

Cholera↗

Hepatitis B knowledge and practices among Chinese American women in Seattle, Washington.

BACKGROUND: Chinese Americans have higher rates of chronic hepatitis B virus (HBV) infection, resulting in higher incidences of liver cancer, compared with the general population. METHODS: The authors conducted a community-based survey of HBV knowledge and preventive practices among Chinese American women in Seattle, Washington, during 1999. RESULTS: Less than half (46%) of the respondents knew that HBV could cause liver cancer. Only 35% reported that they had been serologically tested for HBV, and most of those who knew they were susceptible (61%) had not been vaccinated. CONCLUSIONS: The findings indicate low levels of HBV knowledge, screening, and vaccination among Chinese immigrants. Targeted interventions are needed to reduce the burden of HBV infection and liver cancer in this community.

Adult↗

Assessing physicians' continuing medical education (CME) needs in the U.S.-associated Pacific jurisdictions.

OBJECTIVE: To assess the self-perceived continuing medical education (CME) needs of physicians in American Samoa, Commonwealth of the Northern Mariana Islands, Guam, Federated States of Micronesia, Republic of the Marshall Islands, and the Republic of Palau. METHODS: Questionnaire-based survey of all physicians. RESULTS: Responses obtained from a total of 143 physicians in the region provided information on training backgrounds, previous experiences with CME, local access to regular CME sessions, perceived priority educational needs and preferred methods of CME delivery. CONCLUSIONS: Overall 64% of respondents had attended a formal CME event in 1999 or 2000, and 71% had access to local weekly or biweekly CME. However the perceived usefulness of these events varied by region. Priority learning needs were identified by physicians including non-communicable diseases such as diabetes, hypertension, cardiac disease; communicable diseases such as tuberculosis, HIV/AIDS and tropical diseases; as well as skills such as EKG and X-ray interpretation, trauma management and cardiac life support. Information on the most pressing educational needs and desired methods of delivery will be crucial in planning CME in this region.

Attitude of Health Personnel↗

Health departments' use of international medical graduates in physician shortage areas.

The Conrad "State 20" Program places international medical graduates (IMGs) on J-1 visas in health professional shortage areas (HPSAs). The authors surveyed program administrators from health departments in forty-two participating states. Problems reported include unfair working conditions and compensation for physicians. Federal immigration agencies were reported to be unresponsive and difficult. Employers seem to be more satisfied than physicians with the program. After the exit of the U.S. Department of Agriculture as a sponsor for physician J-1 visa waivers, Congress expanded the Conrad Program, signaling a continued reliance on IMGs to serve in shortage areas.

Emigration and Immigration↗

Hepatitis B knowledge and practices among Chinese Canadian women in Vancouver, British Columbia.

INTRODUCTION: Liver cancer rates are higher in North American Chinese than non-Asian ethnic/racial groups, largely due to chronic hepatitis B virus (HBV) infection. METHODS: A community-based survey of Chinese women (n = 147) was completed during 1999 to examine HBV knowledge and practices in Vancouver, British Columbia. RESULTS: Most women had heard of HBV (85%) but smaller proportions knew about some routes of transmission (e.g., sexual intercourse) and sequelae of infection. Knowledge about HBV was significantly associated with education level (p = 0.005), English fluency (p < 0.001) and household income (p = 0.007). Previous serologic testing for HBV infection was significantly associated with education level (p = 0.04), English fluency (p = 0.01), and level of knowledge about HBV (p < 0.001). CONCLUSIONS: Efforts to increase knowledge about HBV infection in this community should consider targeting less educated and less acculturated individuals.

Acculturation↗