Racial/ethnic disparities and culturally competent health care among youth and young men

Racial/ethnic disparities in health and health care are receiving increasing national attention from the fields of public health and medicine. Efforts to reduce disparities should adopt a life-span approach and recognize the role of gender. During adolescence, young people make increasingly independent decisions about health-related behavior and health care, while developing gender identity. Little is known about how cultural context shapes gender identity and gender identity's influence on health-related behavior and health care utilization. The authors review disparities in health status and health care among adolescents, especially young men, by reviewing health care access, clinical services, and issues related to culture, identity, and acculturation. Significant differences in health status by gender exist in adolescence, with young men faring worse on many health markers. This article discusses gaps in research and offers recommendations for improving health care quality and strengthening the research base on gender and disparities during adolescence.

Semiquantitative assessment of intratumoral susceptibility signals using non-contrast-enhanced high-field high-resolution susceptibility-weighted imaging in patients with gliomas: comparison with MR perfusion imaging

BACKGROUND AND PURPOSE

It has been reported that high-resolution susceptibility-weighted imaging (HR-SWI) may demonstrate brain tumor vascularity. We determined whether the degree of intratumoral susceptibility signal intensity (ITSS) on HR-SWI correlates with maximum relative cerebral blood volume (rCBVmax) and to compare its diagnostic accuracy for glioma grading with that of dynamic susceptibility contrast (DSC) perfusion MR imaging.

MATERIALS AND METHODS

Forty-one patients with diffuse astrocytomas underwent both non-contrast-enhanced HR-SWI and DSC at 3T. We correlated the degree and morphology of ITSS with rCBVmax within the same tumor segment. The degree of ITSS and rCBVmax were compared among 3 groups with different histopathologic grades. Spearman correlation coefficients were determined between the degree of ITSS, rCBVmax, and glioma grade. Receiver operating characteristic (ROC) curve analyses were performed to determine the diagnostic accuracy for glioma grading.

RESULTS

The degree of ITSS showed a significant correlation with the value of rCBVmax in the same tumor segments (r = 0.72, P < .0001). However, the areas of densely prominent ITSSs did not accurately correspond with those of rCBVmax. Spearman correlation coefficients between ITSS degree and glioma grade were 0.88 (95% confidence interval, 0.79-0.94). In the ROC curve analysis of histopathologic correlation by using the degree of ITSS, the optimal sensitivity, specificity, positive predictive value, and negative predictive value for determining a high-grade tumor were 85.2%, 92.9%, 95.8%, and 76.5%, respectively.

CONCLUSIONS

The degree of ITSS shows a significant correlation with the value of rCBVmax in the same tumor segments, and its diagnostic performance for glioma grading is comparable with that of DSC.

Effect of citral, eugenol, nerolidol and alpha-terpineol on the ultrastructural changes of Trichophyton mentagrophytes

The antifungal effects of citral, eugenol, nerolidol and alpha-terpineol on Trichophyton mentagrophytes were investigated. Citral over 0.1 mg/ml strongly inhibited the hyphal growth of T. mentagrophytes, and the antifungal activity of alpha-terpineol was less effective. The morphological changes of the fungus exposed to the terpenes were observed by electron microscopy. The hyphae were distorted and collapsed at 0.2, 0.4 and 1 mg/ml of eugenol, nerolidol and alpha-terpineol respectively, and cell membrane and organelles were irreversibly damaged at 0.2 mg/ml citral. These suggested that four terpenes possess antifungal activity against T. mentagrophytes, and the activity might lead to irreversible cellular disruption.

Preventive care for adolescents: few get visits and fewer get services

OBJECTIVE

Professional guidelines for adolescents recommend annual preventive visits with screening and anticipatory guidance for health-related behaviors. The objective of this study was to examine receipt of preventive services, including disparities in services received, by using a nationally representative sample of adolescents.

METHODS

Using data from the 2001-2004 Medical Expenditure Panel Survey (ages 10-17; N = 8464), we examined receipt of preventive care visits and several measures of the content of care, based on caregiver's reports, among adolescents who received a preventive care visit during the past 12 months. Content of care outcomes included physical parameters measurement (height, weight, and blood pressure); receipt of anticipatory guidance (dental care, seat belts, helmets, exercise, healthy eating, and secondhand smoke exposure); and, for 12- to 17-year-olds, whether adolescents had time alone with their provider during their most recent visit, a proxy for confidential services. We conducted logistic regression analyses to test for disparities in the outcomes on the basis of race/ethnicity, income, and insurance status.

RESULTS

Thirty-eight percent of adolescents had a preventive care visit in the previous 12 months. Low-income and full-year uninsured status were associated with higher risk for not receiving this visit. Most adolescents had height (87%), weight (89%), and blood pressure (78%) assessed. Rates for height and weight were lower in poor and uninsured adolescents. Anticipatory guidance rates were much lower, ranging from 31% for seat belts, helmets, and secondhand smoke to 49% for healthy eating. Only 10% had all 6 areas addressed. Multivariate analyses yielded few disparities in receipt of anticipatory guidance. Forty percent had time alone with their providers. Hispanic and the lowest-income adolescents were the least likely to have time alone.

CONCLUSIONS

Few adolescents received a preventive visit; among those who received this visit, provision of recommended anticipatory guidance was very low. Strategies are required to improve delivery of recommended preventive services to adolescents.

Metabolic syndrome and visceral obesity as risk factors for reflux oesophagitis: a cross-sectional case-control study of 7078 Koreans undergoing health check-ups

BACKGROUND

Obesity has been associated with reflux oesophagitis. However, the relationship between metabolic syndrome characterised by visceral obesity and reflux oesophagitis is unclear.

AIM

To investigate whether metabolic syndrome or visceral obesity is a risk factor for reflux oesophagitis.

METHODS

A cross-sectional study of 7078 subjects undergoing upper endoscopy during health check-ups was conducted (3539 patients with reflux oesophagitis vs age- and sex-matched controls). We further analysed according to categories of visceral adipose tissue and subcutaneous adipose tissue area with 750 cases and age-, sex- and waist circumference-matched controls who underwent abdominal CT scan.

RESULTS

The prevalence of metabolic syndrome was higher in cases than controls (26.9% vs 18.5%, p<0.001). Multivariate analysis demonstrated that metabolic syndrome is associated with reflux oesophagitis (odds ratio (OR) = 1.42; 95% confidence interval (CI), 1.26 to 1.60). Among the individual components of metabolic syndrome, waist circumference (OR = 1.47; 95% CI, 1.30 to 1.65) and triglyceride (OR = 1.20; 95% CI, 1.05 to 1.36) independently increased the risk for reflux oesophagitis. On sub-analysis, cases showed higher mean visceral adipose tissue area (cm(2)) (136.1 (SD 57.8) vs 124.0 (SD 54.7), p<0.001) and subcutaneous adipose tissue area (cm(2)) (145.9 (SD 56.8) vs 133.5 (SD 50.7), p<0.001). However, only visceral adipose tissue area was an independent risk factor for reflux oesophagitis after adjusting for multiple confounders including smoking, alcohol, body mass index (BMI) and subcutaneous adipose tissue area (OR = 1.60; 95% CI, 1.03 to 2.48, lowest quartile vs highest quartile).

CONCLUSIONS

Metabolic syndrome was associated with reflux oesophagitis. Abdominal obesity, especially visceral obesity, was an important risk factor for reflux oesophagitis.

A midcourse review of the healthy people 2010: 21 critical health objectives for adolescents and young adults

As part of Healthy People 2010, a national consensus panel identified 21 Healthy People 2010 objectives as critical to adolescent and young adult health. These objectives span six areas: mortality, unintentional injury, violence, mental health and substance use, reproductive health, and the prevention of chronic disease during adulthood. Progress on these objectives was reviewed as part of the Healthy People 2010 Midcourse Review. The review found little or no improvement on most objectives. Expert recommendations call for broad, population-based efforts to improve adolescent health. However, changes in health policy are largely issue-based and occur incrementally.

Starting on a Healthy Path: Promotion of Young Men's Sexual Health

Sexuality is an integral part of human life. Men's needs in sexual and reproductive health and health care are receiving increased attention. Adolescence offers the opportunity to improve men's sexual health, as males begin exploring their sexual identity and developing romantic relationships. Despite encouraging trends in risky behavior and health status, rates of sexually transmitted infections (STIs) remain high and disparities persist. Young African American men have higher incidence of risky behavior, STIs, and HIV/AIDS. Promoting sexual health and well-being for young men requires multifaceted strategies, including clinical care, education, and improved access to services. Strategies should address the needs of all youth, including homosexual youth. Although reducing specific risky behaviors and health problems remains a priority, more holistic efforts to understand the context and meaning of sexual activity for young males are needed.

Health insurance across vulnerable ages: patterns and disparities from adolescence to the early 30s

OBJECTIVE

Young adults have the lowest rate of insurance coverage of any age group. Little is known about insurance patterns from adolescence through the early 30s. The objective of this study was to assess patterns and disparities in health insurance from adolescence through the early 30s.

DESIGN

We analyzed data from the 2002 and 2003 National Health Interview Survey (ages 13-32; N = 48,827). We examined public and private insurance coverage and conducted logistic regression to evaluate racial/ethnic and income disparities in coverage. Outcomes were insurance coverage at ages 13 to 32.

RESULTS

Insurance patterns follow a U-shaped curve across the age categories. Rates are highest at ages 13 to 14, lowest at ages 23 to 24, and then increase gradually. Private rate patterns are similar; however, public coverage decreases across ages. In bivariate analyses, black and Hispanic groups had lower coverage rates than the white group, and the low- and middle-income groups had lower rates than the high-income group. After adjustment for confounding variables, all disparities remained significant except for differences between the black and white groups.

CONCLUSIONS

After age 18, all groups are vulnerable to lack of insurance. Rate increases beyond age 25 to 26 years are attributable to increases in private coverage, whereas decreases in public coverage account for the lack of a full recovery to the higher rates seen in adolescence. The safety net of public programs that cover adolescents disappears in young adulthood, leaving young adults vulnerable, a problem that persists into the 30s for those who are in poverty and those who are of Hispanic origin.

What Gets Measured Gets Done: Assessing Data Availability for Adolescent Populations

OBJECTIVES

To identify specific adolescent sub-populations; to evaluate the health data available regarding these populations related to 21 key national adolescent health objectives from Healthy People 2010; and to make recommendations for improving data capacity to further efforts to reduce health disparities among adolescents.

METHODS

Adolescent populations were identified through a consensus process. Academic and government literature was extensively reviewed using internet search techniques to identify available national data for each of these populations on each key national health objective.

RESULTS

18 adolescent subpopulations were identified. These populations fit into four overlapping categories defined by demography, legal status, chronic health condition, or other special characteristics. Overall, national, population-based data regarding these sub-populations were located for 36% of the 21 health objectives. Within the sub-populations, most data was available for ethnic/racial groups, with 57-81% of each of the objectives having data. Data regarding rural/urban groups were found for about one-half of the 21 objectives, and data were located on all other groups for one-fourth or fewer of the objectives. Within the objectives, substance abuse objectives were the most widely measured, with data available for 56-78% of the various populations. For some objectives, such as drug-or alcohol-related motor vehicle deaths depression among the developmentally disabled, no national data were found.

CONCLUSIONS

There are still too little data available regarding the specific health status or health objectives for different adolescent populations. A national adolescent data-priority agenda is needed to develop strategies to improve health data regarding adolescent sub-populations. Federal and state health monitoring agencies could create national health profiles of different populations, include more population markers in health studies, and develop tools for population-specific health assessment, particularly for those within the government's care, including incarcerated and foster care youth.

Lack of management of cardiovascular risk factors in type 2 diabetic patients

Effective management of diabetic patients includes comprehensive control for not only blood sugar, but also other cardiovascular risk factors. We assessed whether haemoglobin A1c (A1C) concentrations, blood pressure, low density lipoprotein (LDL) cholesterol levels and microalbuminuria were regularly measured in 281 patients with type 2 diabetes who received care for over 1 year in the Department of Family Medicine located in an urban area of Korea. Subsequently, in patients with A1C > 7%; blood pressure >130/80 mmHg; LDL cholesterol levels >100 mg/dl; or microalbuminuria, we evaluated the status of management for those cardiovascular risk factors. Physicians were most likely to measure A1C levels (98.6%), but less likely to measure microalbuminuria (56.2%), LDL cholesterol (73.7%), or blood pressure (74.4%). Patients whose A1C levels were above the goal (78.2%) were likely to receive optimal therapy. In contrast, only 21.1% of patients with uncontrolled blood pressure and 5.3% of patients with LDL cholesterol levels above the target range received optimal management. Of the 36 patients with microalbuminuria or overt proteinuria, 66.7% took angiotensin-converting enzyme inhibitors or angiotensin receptor blockers. Measurement of parameters indicating cardiovascular risk factors in type 2 diabetic patients was not optimal, particularly regular measurements for microalbuminuria and for controlling LDL-cholesterol and blood pressure. These findings indicate a need for greater education of comprehensive cardiovascular management in type 2 diabetic patients and their physicians.

Molecular characterization of the porcine endogenous retrovirus subclass A and B envelope gene from pigs

Xenotransplantation of porcine organs has the potential to overcome the current critical shortage of allogenic organs for transplantation in humans. However, the existence of porcine endogenous retroviruses (PERVs) presents a problem for the clinical use of xenografts from pigs. In an attempt to understand the molecular characteristics of PERVs, we cloned the PERV env gene from six pig breeds (ie, Berkshire, Duroc, Landrace, Yorkshire, and two types of miniature pigs) in Korea. A total of 141 env clones were isolated and their sequences were analyzed. Phylogenetic analyses of these genes revealed the presence of PERVs, from both classes A and B, in 54% and 46% of the env clones, respectively. Among these clones, 37 isolates had the correct open reading frame (ORF; 27 clones in subclass A and 10 clones in subclass B), while the others had premature termination. These PERV nucleotide sequences can be used in a database for comparisons of PERV distribution among different pig breeds and for monitoring PERV infection using isolates with functional ORFs. Recombinant envelope of subclass A and B with functional ORF was expressed by vaccinia virus systems. Additionally isolated env clones can be used for various experiments, such as PERV control and infectivity tests, and may enhance the understanding of molecular mechanisms through pseudotyped PERV viruses.

Increasing Access to Program Information: A Strategy for Improving Adolescent Health

OBJECTIVES

To identify existing programs serving 11- to 15-year-olds that aim to improve adolescent health in the areas of Health & Well-being, Fitness, Family & Peer Relationships, School Environment, Smoking, Alcohol Use, and Violence and to assess the utility of readily available resources in providing detailed program information.

METHODS

In Phase 1, publicly available program databases were searched to identify potential programs serving the target population. In Phase 2, an in-depth search of a limited sample of programs meeting the content and age criteria was performed to identify program descriptors.

RESULTS

Over 1,000 program names were identified in Phase 1. Information regarding programs is becoming more readily available through the internet; however, the program information that was publicly available only begins to draw the picture. Phase 2 revealed that a broad array of efforts are underway in all seven content areas, but found information on the program descriptors to be limited.

CONCLUSIONS

Investment in programming is not enough; an upfront investment in communication and information sharing is critical in order to maximize the resources dedicated to the improvement of adolescent health. A well-publicized centralized program repository offered in conjunction with technical assistance would provide an efficient mechanism for this information sharing. We further suggest that the inherent gap between research and practice can be lessened by building a new body of practice knowledge. This would require improved program data collection by programs, the incorporation of program participation information in national surveys and enhanced evaluation efforts.

The health status of young adults in the United States

The health issues of young adulthood have received relatively little attention compared with those of adolescence, although the critical issues in young adulthood parallel those of adolescence. Young adults often fare worse than adolescents on health indicators, with many measures of negative outcomes--including rates of injury, homicide, and substance use--peaking during the young adult years. The contextual factors shaping health status and access to care in young adulthood differ significantly from the context of adolescence. This article synthesizes national data to present a health profile of young adults, reviewing social indicators that describe the context of young adulthood and presenting measures of health status. We examine mortality, morbidity, risky behaviors, and health care access and utilization, identifying the most significant gender and racial/ethnic disparities. The article also identifies limitations of existing data and offers suggestions for future research and health monitoring in this area. We conclude with a discussion of current efforts to address the health and well-being of young adults and argue for creating a national health agenda for young adults that includes research, programs and policies to address health issues during this period of the lifespan.

Dihydroartemisinin enhances radiosensitivity of human glioma cells in vitro

PURPOSE

The antimalarial agent, artemisinin, also confers cancer-specific cytotoxic effects by reacting with ferrous iron atoms to form free radicals. Here, we investigated the radiosensitizing effects of dihydroartemisinin on glioma cells and assessed some possible mechanisms for these effects.

MATERIALS AND METHODS

U373MG glioma cells treated with various concentrations of dihydroartemisinin plus radiation, and efficiency of radiosensitization was assessed by clonogenic survival assay. Expression and activity of antioxidant enzymes, glutathione-S-transferase (GST) were quantified by western blot and enzymatic activity analyses, respectively.

RESULTS

Dihydroartemisinin showed higher cytotoxicity in the glioma cell lines than in the liver, breast or cervical cancer cell lines. In clonogenic survival assays, treatment with dihydroartemisinin alone dose-dependently reduced the number of U373MG colonies, while treatment with dihydroartemisinin plus gamma-irradiation showed far lower clonal survival than cultures treated with radiation or dihydroartemisinin alone. The radiosensitizing effect of dihydroartemisinin was blocked significantly by the free radical scavengers, NAC and TIRON, indicating association with dihydroartemisinin-induced ROS generation. In addition, the radiation-induced expression of endogenous GST was suppressed by treatment with dihydroartemisinin. The radiosensitizing effect of dihydroartemisinin was also markedly enhanced by the addition of holotransferrin

CONCLUSION

Taken together, our results strongly suggest that dihydroartemisinin triggers production of ROS and inhibits GST activity, leading to effective and therapeutically relevant radiosensitization of human glioma cells.

Surgical treatment of post-traumatic stiffness of the elbow

Surgical release of the elbow was performed in 27 patients with post-traumatic stiffness at a mean of 14.5 months after the initial injury. The outcome was related to whether there had been heterotopic ossification, which had occurred in 18 elbows and to whether, if there had been a fracture, it had involved the articular surface, which had occurred in 13 elbows. The final range of movement and the ratio of desired gain in each group were compared at a mean follow-up period of 22.5 months (12 to 43). The arc of movement of the elbow improved in all patients after the operation. The mean final arc was 110 degrees in those with heterotopic ossification and 86 degrees in those without (p = 0.001). The ratios of desired gain were significantly higher in patients with heterotopic ossification (88.2% vs 54.9%; p < 0.001). There was no significant difference in relation to involvement of the articular surface. Careful assessment of the cause of stiffness is important in order to achieve a satisfactory result from surgery for post-traumatic stiffness of the elbow.

Trends in private and public health insurance for adolescents

CONTEXT

Previous studies (1984-1995) of adolescent health insurance have shown little change in the proportion with coverage. Federally mandated expansions in Medicaid were offset by declines in private coverage. Further expansions of Medicaid and implementation of the State Children's Health Insurance Program (SCHIP) have opened new avenues for increasing coverage rates.

OBJECTIVES

To assess the current health insurance status of adolescents, the demographic and socioeconomic correlates of insurance coverage, and document recent changes in public and private coverage rates.

DESIGN, SETTING, AND PARTICIPANTS

We analyzed data on 12 995 adolescents aged 10 to 18 years, who had been included in the 2002 National Health Interview Survey. We conducted multivariate analyses to assess the independent association of age, sex, race, poverty status, family structure, family size, and region on the likelihood of having insurance coverage. Results are compared with previously published findings on adolescent health insurance coverage spanning 1984 to 1995.

MAIN OUTCOME MEASURE

Insurance coverage for adolescents.

RESULTS

An estimated 12.2% of adolescents were uninsured in 2002, which is a decrease from 14.1% in 1995 (P<.003). The decrease occurred entirely because of an expansion of public coverage and is concentrated among children in poor (<100% of the federal poverty level) and near-poor (100%-199% of the federal poverty level) families. A substantial decrease in the differences between poor and higher-income groups occurred between 1995 and 2002 due to gains in coverage for adolescents in poor and near-poor families and losses in coverage among those in middle- and upper-income families (> or =200% of the federal poverty level). Specifically, the proportion of adolescents in poor families without coverage declined from 27.4% in 1995 to 19.7% in 2002 (P<.001). The proportion of adolescents in near-poor families without coverage declined from 24.8% in 1995 to 19.2% in 2002 (P<.002). In contrast, the proportion of adolescents in middle- and higher-income families without insurance increased from 4.1% in 1995 to 6.3% in 2002 because availability of insurance through the private market declined (P<.001).

CONCLUSIONS

A modest but significant reduction in the percentage of adolescents without insurance has occurred since 1995, largely as a result of expansions in public coverage. An even larger reduction in the proportion of adolescents without coverage would have occurred, if not for a reduction in private coverage for adolescents in middle- and higher-income families.

Disparities in adolescent health and health care: does socioeconomic status matter?

DATA COLLECTION/EXTRACTION METHODS

National household survey.

DATA SOURCES/STUDY SETTING

We analyzed data on 12,434 adolescents (10 through 18 years old) included in the 1999 and 2000 editions of the National Health Interview Survey.

STUDY DESIGN

We assessed the presence of income gradients using four income groups. Outcome variables included health status, health insurance coverage, access to and satisfaction with care, utilization, and unmet health needs.

PRINCIPAL FINDINGS

After adjustment for confounding variables using multivariate analysis, statistically significant disparities were found between poor adolescents and their counterparts in middle- and higher-income families for three of four health status measures, six of eight measures of access to and satisfaction with care, and for six of nine indicators of access to and use of medical care, dental care, and mental health care.

CONCLUSION

Our analyses indicate adolescents in low-income families remain at a disadvantage despite expansions of the Medicaid program and the comparatively new State Children's Health Insurance Program (SCHIP). Additional efforts are needed to ensure eligible adolescents are enrolled in these programs. Nonfinancial barriers to care must also be addressed to reduce inequities.

Arthroscopic synovectomy of the wrist in rheumatoid arthritis

We analysed the results of arthroscopic synovectomy of the wrist in 18 patients (19 wrists) with rheumatoid arthritis who had not responded to conservative treatment. The patients’ symptoms were assessed using visual analogue scales for pain and satisfaction. Standard posteroanterior radiographs which were taken pre-operatively and at final follow-up were analysed using a modified Larsen scoring system (normal, 0; total destruction, 40). The mean follow-up period was 29.2 months (24 to 45). The mean pre-operative pain score was 8.58 which decreased to 3.58 one year after surgery and increased again to 4.42 at final follow-up. This suggested a gradual increase in pain with time. The mean satisfaction score was 6.26. The mean modified Larsen’s score was 9.8 pre-operatively and 13.9 at final follow-up, which demonstrated the slow progression of degenerative changes.

Arthroscopic synovectomy for rheumatoid arthritis of the wrist allows effective pain relief and high patient satisfaction, although any prolonged benefits will require long-term follow-up.

The measurement of engagement in the homeless mentally ill: the Homeless Engagement and Acceptance Scale--HEAS

BACKGROUND

Much of the difficulty in helping the homeless mentally ill arises as a consequence of their resistance to engagement. A refused intervention can seldom influence a client's problems and engagement status can be argued as being an important independent predictor of outcome. No instrument could be identified which systematically measured the factors involved. This paper describes the development and psychometric properties of a new scale, the Homeless Engagement and Acceptance Scale (HEAS).

METHOD

Staff from an established project for the homeless mentally ill helped to identify relevant questions used to develop a five-item rating scale for completion by an informant. After piloting, the instrument was tested in a study in which subjects were assessed twice over 12 months by informants. Item analysis was undertaken and predictive validity was assessed.

RESULTS

Item analysis indicated a good facility index signifying all items were able to differentiate subjects according to the characteristic being measured, and a high discrimination index demonstrating that all items were measuring the same concept. Predictive validity and internal consistency coefficients were both good. The 3 month HEAS score was found to be a significant predictor of accommodation status and adequacy of a support network at 12 months.

CONCLUSIONS

The good psychometric properties and predictive validity of the scale suggest the HEAS is likely to be a useful tool in assessing engagement status. One of the five questions (Q4) can be omitted for those who are not homeless and the scale termed the Engagement and Acceptance Scale (EAS).

Effect of Helicobacter pylori eradication on duodenal ulcer scar in patients with no clinical history of duodenal ulcer

BACKGROUND

Helicobacter pylori eradication has become the standard treatment for duodenal ulcer. However, there is no relevant evidence for antibacterial treatment of the white scar stage of duodenal ulcer (duodenal ulcer scar) in patients with no past history of duodenal ulcer.

AIM

To investigate whether H. pylori eradication could decrease duodenal ulcer recurrence in patients with duodenal ulcer scar and no past history of duodenal ulcer.

PATIENTS AND METHODS

We prospectively enrolled 66 patients with duodenal ulcer scar: 53 were H. pylori-positive and 13 were H. pylori-negative. H. pylori-positive patients were randomly assigned into two groups (two-to-one allocation): 36 patients were assigned to the treatment group and 17 to the follow-up group. Thirteen H. pylori-negative patients were followed up according to the study protocol. Follow-up endoscopy was performed to evaluate ulcer scar changes and H. pylori status 6 weeks after anti-H. pylori treatment and then every 6 months for up to 30 months.

RESULTS

Active duodenal ulcer recurrence was identified in seven of 23 H. pylori-positive/non-cured patients (30%). There was no duodenal ulcer recurrence in 43 H. pylori-negative/cured patients (0%), which was significantly different in terms of duodenal ulcer recurrence (P=0.001).

CONCLUSIONS

H. pylori eradication is effective at preventing active duodenal ulcer recurrence in patients with duodenal ulcer scar and no past history of duodenal ulcer.

Normal anteroposterior laxity of the radiocarpal and midcarpal joints

The patterns of laxity of normal wrists subjected to dorsal and volar stresses were analysed. Dorsal and volar displacement tests were carried out on both wrists of 50 subjects under image-intensifier control. Lateral projections in neutral, and dorsal and volar stress positions were taken to analyse the behaviour of the carpal bones. Varying degrees of capitolunate subluxation under dorsal and volar stress were noted. Dorsal displacement of the capitate appeared to be more prominent than volar displacement. The lunate either extended or subluxed dorsally in response to a dorsal stress, suggesting a different pattern of laxity for the radiolunate joint. These observations provide a baseline for the interpretation of dorsal and volar stress views in the symptomatic wrist.