Relevance of the diagnosis of hypersensitivity reactions to antineoplastic and biological agents: experience with drug provocation test

Summary

Background. Evidence regarding drug provocation test (DPT) with chemotherapeutic agents is scarce. The aim of our study is to describe the experience of DPT in patients with a history of hypersensitivity reactions (HSRs) to antineoplastic and biological agents. Methods. This was an eight-year retrospective, observational, descriptive study of patients with a history of HSRs to chemotherapy who were submitted to DPT. Anamnesis, skin tests (ST) and DPT were analyzed. Patients with a negative DPT were submitted to at least one regular supervised administration (RSA). Patients with positive DPT or HSR during RSA were offered rapid drug desensitization (RDD). Results. A total of 54 patients were submitted to DPT. The most common suspected drugs were platins (n = 36), followed by taxanes (n = 11). Most initial reactions were classified as grade II (n = 39) according to Brown's grading system. ST with platinum (n = 35), taxanes (n = 10) and biological agents (n = 4) were negative, except for one intradermal test with paclitaxel, which was positive. A total of 64 DPTs were performed. Eleven percent of all DPTs were positive (platins (n = 6), doxorubicin (n = 1)). Of the 57 RSA with the culprit drugs, 2 were positive (platins). The diagnosis of hypersensitivity was confirmed by DPT/RSA in 9 patients. All patients with positive DPT/RSA presented HSRs of equal or less severity than the initial one. Conclusions. DPT followed by RSA allowed to exclude HSRs in 45 patients (55 culprit drugs). DPT before desensitization prevents non-hypersensitivity patients from undergoing RDD. In our study DPT was safe, all reactions were managed by an allergist.

Acute urticaria in children: from pediatric emergency department to allergology consultation at a central hospital

Summary

Background. Acute urticaria is a common condition in the pediatric emergency department (ED) and no data is available in Portugal. Objective. We aimed to characterize the prevalence, etiology and management of acute urticaria in children presenting at an ED of a portuguese central hospital and report the follow-up investigation when drug or food allergy was suspected.Methods. Retrospective study of clinical records from children admitted to the ED with acute urticaria during one year period. Results. 250 children were included, mean age of 7.4 ± 4.9 years (0-17 years). The most frequently suspected etiological factors were infections (22%), foods (12%), insect bites (9%) and drugs (8%), of which, upper respiratory tract infections, seafood and β-lactam antibiotics were the most frequent. In 44% of cases, the etiology of urticaria was not determined. After ED discharge, of the 50 patients with suggestive drug or food allergy, only 48% were sent to allergological workup and the allergy confirmed in 6 of them (2.4% of the 250 children). Conclusions. These data suggest that allergy is not the main trigger of acute urticaria in ED children, but when suspected, reference to an allergy department to complete allergological workup was insufficient.

Predictive factors of non-adherence to asthma medication in pregnancy

Summary

Background. Adherence to asthma medications is a significant problem among pregnant women. Objective. To evaluate asthma medication adherence in pregnant women and to determine the factors that may predict non-adherence in a real-life setting. Methods. A cross-sectional study was performed with pregnant women with asthma followed in a specialized asthma consultation at the Pulmonology Department, between 2014 and 2019. Sociodemographic and clinical variables were collected. Structured telephone interviews were conducted to determine regular medication use during pregnancy. Multiple logistic regression was used to identify predictive factors of asthma medication non-adherence (cessation or dose reduction). Results. A total of 82 pregnant women were included: mean age of 31.3 ± 6.5 years, non-adherence was detected in 29% (n = 24). Multivariable logistic regression analysis revealed that mild asthma during pregnancy (OR, 4.8; 95% CI 1.4-17.1, p = 0.015) and single, separated or divorced mothers (OR, 4.0; 95% CI 1.3-11.8, p = 0.014) were independent predictors of poor adherence to asthma medications. Conclusions. Asthma severity and marital status can strongly predict the asthma medication non-adherence in pregnant females. These findings may help improve asthma education strategies to promote.

Asymmetry after hamstring injury in English Premier League: issue resolved, or perhaps not?

Hamstring injuries constitute one of the most concerning injuries in English Premier League football, due to its high primary incidence but also its recurrence. Functional methods assessing hamstring function during high-risk performance tasks such as sprinting are vital to identify potential risk factors. The purpose of this study was to assess horizontal force deficits during maximum sprint running on a non-motorized treadmill in football players with previous history of hamstring strains as a pre-season risk-assessment in a club setting. 17 male football players from one Premier League Club were divided into 2 groups, experimental (n=6, age=24.5±2.3 years) and control (n=11, age=21.3±1.2 years), according to history of previous hamstring injury. Participants performed a protocol including a 10-s maximum sprint on a non-motorized treadmill. Force deficits during acceleration phase and steady state phases of the sprint were assessed between limbs and between groups. The main outcome measures were horizontal and vertical peak forces during the acceleration phase or steady state. There were no significant differences in peak forces between previously injured and non-injured limbs, or between groups, challenging the ideas around functional force deficits in sprint running as a diagnostic measure of hamstring re-injury risk.

Desensitization to clopidogrel: a tailor-made protocol

Clopidogrel is an antiplatelet drug widely used for treatment and prevention of a variety of cardiovascular diseases. We report a successful desensitization to clopidogrel in a 70-year-old Caucasian man with delayed hypersensitivity (HS) reaction. He developed lip, hand and foot swelling, erythematous papular non-pruritic lesions and arthralgias 2 weeks after starting treatment with clopidogrel 75 mg/d. A 3-hour desensitization protocol was started, achieving a cumulative dose of 154 mg without any reaction, and a daily dose of 75 mg was recommended. On the 4th day, the patient developed skin lesions similar to the previously described. He was treated with topical steroids and oral antihistamines, and the daily dose of clopidogrel was reduced to 20 mg. A new desensitization protocol was established, with a slow dose increment, according to the patient's response. It was only possible to achieve the dose of 75 mg/d after 2 months. Although well tolerated by most patients, HS reactions with clopidogrel may occur and desensitization is rising as a safe alternative in those patients. In delayed reactions with cutaneous lesions, a slower desensitization protocol may be necessary, as in this case.

[Benign paroxysmal positional vertigo of the horizontal canal: A multicenter study]

OBJECTIVE

BPPV localized in the horizontal semicircular canal is an infrequent entity. Nowadays there are controversies about the different treatments available. The objective of this study is to present our results.

MATERIAL AND METHODS

A multicenter and retrospective study was performed in 31 patients diagnosed of BPPV-HSC between January 1996 and May 2004.

RESULTS

cupulolithiasis was diagnosed in 48% on the patients. Symptoms disappeared before signs (p<0.05). Global cure rate was 85%, while relapses were 16% at one year. No relations were found between cure rate and relapses and age, gender, duration of symptoms, canalithiasis and cupulolithiasis.

CONCLUSION

Our results support that there are not differences between the treatments performed in the BPPV-HSC. Symptoms disappeared before signs when canalith repositioning particles (CRP) maneuver was performed.

Work interest as a predictor of competitive employment: policy implications for psychiatric rehabilitation

Consumers with serious mental illness (N = 166) enrolling in two community-based mental health programs, a vocational Program of Assertive Community Treatment and a clubhouse certified by the International Center for Clubhouse Development (ICCD), were asked about their interest in work. About one third of the new enrollees expressed no interest in working. Equivalent supported employment services were then offered to all participants in each program. Stated interest in work and receipt of vocational services were statistically significant predictors of whether a person would work and how long it would take to get a job. Two thirds of those interested in work and half of those with no initial interest obtained a competitive job if they received at least one hour of vocational service. Once employed, these two groups held comparable jobs for the same length of time. These findings demonstrate the importance of making vocational services continuously available to all people with serious mental illness, and the viability of integrating these services into routine mental health care.

The ICCD benchmarks for clubhouses: a practical approach to quality improvement in psychiatric rehabilitation

OBJECTIVE

The study evaluated whether the average performance of clubhouses certified by the International Center for Clubhouse Development (ICCD) should be considered valid benchmarks for clubhouse programs.

METHODS

A representative sample of clubhouses more than three years old that were based on the Fountain House model participated in a 1998 mail survey. To verify that ICCD certification is a valid indicator of program quality for use in setting benchmark performance rates, 71 certified and 48 noncertified programs were compared on a variety of organizational variables.

RESULTS

Even though certified and noncertified clubhouses were similar in organizational structure and resources, findings from a logistic regression analysis confirmed that certified clubhouses provided a wider array of rehabilitation services and achieved higher rates of employment.

CONCLUSIONS

The findings suggest that ICCD certification is a valid indicator of program quality. The ICCD has therefore proposed that the average performance of certified U.S. clubhouses in specific domains be adopted as benchmarks for organizational performance. When tailored for programs in particular regions and with specific levels of funding, the ICCD benchmarks for clubhouse performance set fair and reasonable expectations for clubhouse programs and for the design of performance contracts between departments of mental health and ICCD clubhouses.

A retrospective study of clubhouse-based transitional employment

This study of clubhouse-based transitional employment (TE) examined the ability of demographic data, diagnosis, and data on TE participation to predict TE tenure and a one-year competitive employment outcome following TE among clubhouse members. Baseline data on 138 club members who participated in TE over a 6-year period were retrospectively retrieved from a computerized database and written records. Most of the jobs held by members were maintenance or production jobs; members' average tenure on TE was 131.26 days. Older members, those with a longer club membership before their last TE job, and those working more days per week had longer average tenure on TE. Average tenure was unrelated to the severity of disability. Forty-two (30.4%) members obtained competitive employment in the one year following their last TE job. Members who worked more total hours on TE were more likely to obtain competitive employment. While aspects of the TE experience predict the move to competitive employment, further studies are needed.

Linking substance abuse and serious mental illness service delivery systems: initiating a statewide collaborative

In the past, persons with serious mental illness and substance abuse often found themselves in parallel systems of care that inadequately addressed their needs. Recent advances have seen the development of an integrated approach to care for these disorders in both the public and private sectors. While some state departments of mental health have developed integrated systems of care for public sector patients, no department appears to have developed such a system for both public and private clients, and there appears to be no published journal report of a model to induce cooperation by all stakeholders. This article outlines a two-step approach by the Massachusetts Department of Mental Health to foster stakeholder cooperation in designing an integrated system of care for both public and private clients with co-occurring disorders.

The value of program certification for performance contracting

A survey of clubhouses listed in the 1996 ICCD Clubhouse Directory provided a research sample of 80 ICCD-certified clubhouses and 88 non-certified clubhouses with which to test the discriminant validity of ICCD certification. A statistically significant logistic regression model revealed that ICCD certification status could be clearly predicted for 78% of the clubhouses in the survey sample on the basis of director-reported compliance with representative measures of the Standards for Clubhouse Programs. The predictive power of compliance with the Standards was obtained even while controlling for other organizational variables, including clubhouse age, total staff salaries, and receipt of Medicaid funding. These findings provide support for the practical utility of adopting program certification as a performance indicator in an era of managed care, as well as the specific value of relying on ICCD certification as a quality assurance indicator.

Development of tolerance to the therapeutic effect of amantadine on akathisia

Four patients with akathisia as a result of neuroleptic administration were treated with amantadine. Although substantial improvement occurred initially, all four patients developed tolerance to this therapeutic effect within 1 week. An increase in dosage also had only a transient effect. The rapid development of tolerance significantly limits the usefulness of amantadine in the treatment of akathisia. One patient who suffered from akathisia and drug-induced parkinsonism experienced significant attenuation of both movement disorders in response to treatment with amantadine. Although she became tolerant to the effect of amantadine on her akathisia within the first week of treatment, her parkinsonism did not recur. The possibility that these two neuroleptic-induced extrapyramidal syndromes are pharmacologically separable is discussed.