The strange case of Dr HDL and Mr HDL: Does a NO’s story illuminate the mystery of HDL’s dark side uncovered by Dr HDL’s drug targeting CETP?

Recently, the first large-scale morbidity and mortality trial (ILLUMINATE) to evaluate the cardiovascular end points of a CETP inhibitor (torcetrapib) has been prematurely stopped because the mortality was significantly increased in the treated group. Why torcetrapib caused excess death is not known. Based on the fact that HDL interacts with endothelial nitric oxyde synthase (eNOS) and nitric oxide (NO) secretion, which partly controlled blood pressure and than torcetrapib could increase blood pressure among some patients, we hypothesize that CETP inhibition could have significantly inhibit eNOS. CETP inhibition would have enlarged HDL size resulting in a deficit in the interaction between HDL and the Scavenger Receptor class B type I (SR-BI), which is an important link between HDL and eNOS activation. We suggest than the deficit in NO secretion would have been sufficient among all patients to induce a destabilization of the plaques of atheroma, but could have induced a pathogenic increase in blood pressure only in patients whose eNOS activity was naturally weak due to genetic polymorphisms of this enzyme. We also hypothesize that the increase in HDL levels, induced by CETP inhibition, coupled with the capacity of HDL to induce endothelin-1 secretion would have aggravated the cardiovascular risks under this CETP inhibitor treatment.     

Prevalence and prediction of medical distrust in a diverse medical genomic research sample

PurposeMedical distrust has been identified as a persistent barrier to medical care, affecting preventative screening, treatment uptake, and treatment adherence. Despite this, little research to date has examined medical distrust in a genomic medicine context. The goal of this work was to assess the prevalence of medical distrust in a genomic medicine research study and examine patient-level demographic, access-related, and health-status characteristics that predict medical distrust.MethodsWe assessed medical distrust in a research sample of adults (N = 967) receiving genomic sequencing to screen for hereditary risk of cancer syndromes in the United States. We used multiple predictive variable selection models to determine predictors of medical distrust followed by marginal mean analyses to characterize the relationships.ResultsThe prevalence of medical distrust was 32%. The final model indicated that Black and African American race/ethnicity; trans, nonbinary, or nonidentifying gender identity; high education; low income; low access to health care; and poor Short Form 12 mental health composite scores predict medical distrust.ConclusionMedical distrust may pose similar challenges to genomic sequencing, as it does in other medical contexts. The pattern of variables that predict distrust suggest that increasing access and accommodation for stigmatized and underserved communities may help overcome the negative effects of medical distrust.     

Observed communication skills: how do they relate to the consultation content? A nation-wide study of graduate medical students seeing a standardized patient for a first-time consultation in a general practice setting

Background

In this study, we wanted to investigate the relationship between background variables, communication skills, and the bio-psychosocial content of a medical consultation in a general practice setting with a standardized patient.

Methods

Final-year medical school students (N = 111) carried out a consultation with an actor playing the role of a patient with a specific somatic complaint, psychosocial stressors, and concerns about cancer. Based on videotapes, communication skills and consultation content were scored separately.

Results

The mean level of overall communication skills had a significant impact upon the counts of psychosocial issues, the patient's concerns about cancer, and the information and planning parts of the consultation content being addressed. Gender and age had no influence upon the relationship between communication skills and consultation content.

Conclusion

Communication skills seem to be important for final-year students' competence in addressing sensitive psychosocial issues and patients' concerns as well as informing and planning with patients being representative for a fairly complex case in general practice. This result should be considered in the design and incorporation of communication skills training as part of the curriculum of medical schools.     

The medical consultation viewed as a value chain: A neurobehavioral approach to emotion regulation in doctor–patient interaction

Objective

To present a model of the medical consultation as a value chain, and to apply a neurobehavioral perspective to analyze each element in the chain with relevance for emotion regulation.

Methods

Current knowledge on four elements in medical consultations and neuroscientific evidence on corresponding basic processes are selectively reviewed.

Results

The four elements of communication behaviours presented as steps in a value chain model are: (1) establishing rapport, (2) patient disclosure of emotional cues and concerns, (3) the doctor's expression of empathy, and (4) positive reappraisal of concerns.

Conclusion

The metaphor of the value chain, with emphasis on goal orientation, helps to understand the impact of each communicative element on the outcome of the consultation. Added value at each step is proposed in terms of effects on outcome indicators; in this case patients affect regulation. Neurobehavioral mechanisms are suggested to explain the association between communication behaviour and affect regulation outcome.

Practice implications

The value chain metaphor and the emphasis on behaviour–outcome–mechanisms associations may be of interest as conceptualizations for communications skills training.     

20 ans après: a second mutation in MAOA identified by targeted high-throughput sequencing in a family with altered behavior and cognition

Intellectual disability (ID) is characterized by an extraordinary genetic heterogeneity, with >250 genes that have been implicated in monogenic forms of ID. Because this complexity precluded systematic testing for mutations and because clinical features are often non-specific, for some of these genes only few cases or families have been unambiguously documented. It is the case of the X-linked gene encoding monoamine oxidase A (MAOA), for which only one nonsense mutation has been identified in Brunner syndrome, characterized in a single family by mild non-dysmorphic ID and impulsive, violent and aggressive behaviors. We have performed targeted high-throughput sequencing of 220 genes, including MAOA, in patients with undiagnosed ID. We identified a c.797_798delinsTT (p.C266F) missense mutation in MAOA in a boy with autism spectrum disorder, attention deficit and autoaggressive behavior. Two maternal uncles carry the mutation and have severe ID, with a history of maltreatment in early childhood. This novel missense mutation decreases MAOA enzymatic activity, leading to abnormal levels of urinary monoamines. The identification of this new point mutation confirms, for the first time since 1993, the monogenic implication of the MAOA gene in ID of various degrees, autism and behavioral disturbances. The variable expressivity of the mutation observed in male patients of this family may involve gene–environment interactions, and the identification of a perturbation in monoamine metabolism should be taken into account when prescribing psychoactive drugs in such patients.     

Systemic lupus erythematosus and thyroid disease – Experience in a single medical center in Taiwan

BackgroundTo investigate the association of systemic lupus erythematosus (SLE) with thyroid diseases in a medical center in central Taiwan.MethodsThis is a retrospective cohort of 2796 SLE patients in a tertiary referral medical center from 2000 to 2013. We screened SLE by catastrophic illness registration from national insurance bureau; and thyroid diseases by ICD 9 codes, then confirmed by thyroid function test, auto-antibody, medical and/or surgical intervention. We compared the rate of hyperthyroidism, hypothyroidism and autoimmune thyroid disease (AITD) in SLE patients and the 11,184 match controls. We calculated the rate of these thyroid diseases and positive antibodies to thyroglobulin (ATGAb), thyroid peroxidase (TPOAb) in SLE patients grouped by the presence of overlap syndrome and anti-dsDNA antibody. We also compared the association of thyroid diseases to severe SLE conditions, including renal, central nervous system (CNS) involvement, and thrombocytopenia.ResultsCompared to the matched controls, the cumulative incidence of thyroid disease, including hyperthyroidism, hypothyroidism and AITD, were all higher in SLE patients (p < 0.0001). The average age of SLE patients with thyroid diseases patients were older than those without thyroid diseases (p = 0.002). Those had euthyroid AITD were younger than other patients with thyroid diseases (p = 0.02). Up to 30.3% SLE patients had overlap syndrome and had higher relative risk of thyroid diseases than those without overlap syndrome, in terms of hypothyroidism and AITD, but not hyperthyroidism. SLE patients with thyroid diseases also carry higher risk for severe complications such as renal involvement (p = 0.024) central nervous system involvement (p < 0.0001).ConclusionSLE patients had significantly higher rate of hyperthyroidism, hypothyroidism, and AITD than the matched control. Among lupus patients, the risks of thyroid diseases are even higher in the presence of overlap syndrome. SLE patients with thyroid diseases had higher risk of renal and CNS involvement.     

An Herrn Dr. Schmöger in Proskau

Ohne Zusammenfassung     

Thoracic and abdominal mesothelioma in a dog: a cytologist��s view

Mesothelioma is an uncommon tumour in dogs, whose diagnosis can be a challenge to the veterinary cytologist. This paper aims to report a case of mesothelioma in a dog, obtained from the cytological analysis of pleural and abdominal fluid, which allowed an in vivo diagnosis. A 4.10-year-old-boxer dog was presented for clinical care with abdominal distension, difficulty in breathing and loss of appetite. Laboratorial and imaging tests were performed, and the cytology of abdominal and pleural effusions suggested the presence of mesothelioma. The cytology was ratified later by a histopathology of the lungs, ovaries, liver, spleen, peritoneum and omentum.     

Fine-needle aspiration and intraoperative consultation in thyroid pathology: when and how?

Fine-needle aspiration (FNA) and frozen section evaluation are traditional components of the management of thyroid lesions. Their role and usefulness are dictated by some basic facts about thyroid pathology: (a) nodules are very common; (b ) they are benign in the majority of cases; and (c) the diagnosis of malignancy is primarily based on cytologic features in the case of papillary carcinoma, and on the presence of invasion of the tumor capsule or of blood vessels in the case of follicular carcinoma. The common occurrence of benign thyroid nodules mandates a cost-effective effective method for preoperative screening. Since, as already stated, the diagnosis of papillary thyroid carcinoma (by far the most common thyroid malignancy) is based on the identification of characteristic cytologic features, FNA has easily emerged in the past 30 years as the most accurate and cost-effective tool-indeed a true cornerstone-for the preoperative management of thyroid nodules. Standardized terminology to report cytologic diagnoses is highly recommended and is being implemented worldwide. Conversely, the importance of intraoperative frozen section diagnosis has been constantly decreasing over the past years, as a direct consequence of the widespread application of FNA. It may, however, be very useful in cases that are suspicious for papillary carcinoma on FNA and in selected cases with an indeterminate cytologic diagnosis.     

Talking medicine: a course in medical humanism--what do third-year medical students think?

OBJECTIVE: The early 1990s sparked an interest in organized medicine to reclaim and re-evaluate how it promotes professionalism among physicians. The American Board of Internal Medicine (ABIM) launched Project Professionalism as a means to define and evaluate professionalism as a component of clinical competence. The course "Talking Medicine" was developed to create a series of small-group discussions on humanism and professionalism where students can reflect on the process of becoming a physician and share personally or ethically difficult and rewarding cases with each other. We asked students to define these concepts and use these definitions to spark small-group discussion. DESCRIPTION: "Talking Medicine" is predicated on the belief that humanism and professionalism come to students and others through understanding a number of core concepts and relationships complemented by self-reflection. "Talking Medicine" offers a consistent (every other week for ten weeks) opportunity to share experiences in small groups (six to eight students), facilitated by two preceptors, in a format driven by students' experiences. Although the focus is on students' experiences, readings are provided on basic topics and contexts in humanism and professionalism (e.g., end-of-life care, mistakes, spirituality in medicine, and boundaries between patients and doctors). Also, at the beginning of each internal medicine clerkship we asked students to define humanism and professionalism anonymously on sheets of paper to be handed to the preceptors. DISCUSSION: "Talking Medicine" began in summer 2000. We hope to expand it to other institutions. We surveyed students and found 94% felt "very" or "somewhat" comfortable in the course. Seventy-three percent of students reported that the course increased their "connectedness" to classmates, and 61% favored its occurring during all rotations. Fifty-nine percent reported that their interest in caring for patients improved, and 53% reported their interest in internal medicine as a field improved. Answers to open-ended questions highlighted the importance of "Talking Medicine" as a forum to connect with others-both students and faculty. Despite this course's focus during an internal medicine clerkship, students see a broader definition of professionalism than the ABIM; the student's definitions were similar in many ways to the Group of Educational Affairs definition of professionalism. Third-year medical students focus more on tolerance of difference (e.g., race, socioeconomic status, and varying health beliefs), and the importance of collegiality and collaboration in the new environment of patient care. Their vantage point early in training allows them to look critically at the profession they are joining and view its shortcomings and strengths. Future work is needed that focuses on how these definitions change as students' progress through fourth year, into residency, and finally continuing medical education. Nevertheless, we suggest that "Talking Medicine" may be most effective in helping classmates connect to and learn from each other, thereby setting a foundation for changes in how they interact with patients.     

“Speaking-for” and “speaking-as”: Pseudo-surrogacy in physician–patient–companion medical encounters about advanced cancer

Objective

To examine using audio-recorded encounters the extent and process of companion participation when discussing treatment choices and prognosis in the context of a life-limiting cancer diagnosis.

Methods

Qualitative analysis of transcribed outpatient visits between 17 oncologists, 49 patients with advanced cancer, and 34 companions.

Results

46 qualifying companion statements were collected from a total of 28 conversations about treatment choices or prognosis. We identified a range of companion positions, from “pseudo-surrogacy” (companion speaking as if the patient were not able to speak for himself), “hearsay”, “conflation of thoughts”, “co-experiencing”, “observation as an outsider”, and “facilitation”. Statements made by companions were infrequently directly validated by the patient.

Conclusion

Companions often spoke on behalf of patients during discussions of prognosis and treatment choices, even when the patient was present and capable of speaking on his or her own behalf.

Practice implications

The conversational role of companions as well as whether the physician checks with the patient can determine whether a companion facilitates or inhibits patient autonomy and involvement. Physicians can reduce ambiguity and encourage patient participation by being aware of when and how companions may speak on behalf of patients and by corroborating the companion's statement with the patient.     

Patients’ reflections on communication in the second-opinion hematology–oncology consultation

Objective

The nature of communication between patients and their second-opinion hematology consultants may be very different in these one-time consultations than for those that are within long-term relationships. This study explored patients’ perceptions of their second-opinion hematology–oncology consultation to investigate physician–patient communication in malignant disease at a critical juncture in cancer patients’ care and decision-making.

Methods

In-depth telephone interviews with a subset of 20 patients from a larger study, following their subspecialty hematology consultations.

Results

Most patients wanted to contribute to the consultation agenda, but were unable to do so. Patients sought expert and honest advice delivered with empathy, though most did not expect the consultant to directly address their emotions. They wanted the physician to apply his/her knowledge to the specifics of their individual cases, and were disappointed and distrustful when physicians cited only general prognostic statistics. In contrast, physicians’ consideration of the unique elements of patients’ cases, and demonstrations of empathy and respect made patients’ feel positively about the encounter, regardless of the prognosis.

Conclusions

Patients provided concrete recommendations for physician and patient behaviors to enhance the consultation.

Practice implications

Consideration of these recommendations may result in more effective communication and increased patient satisfaction with medical visits.     

Do ticks and Borrelia burgdorferi s.l. constitute a burden to birds?

Ticks consume resources from their hosts shaping their life-history traits and are vectors of many zoonotic pathogens. Several studies have focused on the health effects of blood-sucking ectoparasites on avian hosts, but there is limited information on the effects of ticks on adult and sub-adult birds, which may actively avoid ticks and are likely to present low infestation intensities. We evaluated the effects of the presence of feeding ticks and intensity of infestation on health variables of avian hosts. We also evaluated whether these variables were affected by tick infection by Borrelia burgdorferi sensu lato (s.l.) and by the presence of Borrelia infection on the birds’ skin. Presence of parasite association among ticks, haemosporidea and Borrelia within the bird-host was also tested. We found that infestation by ticks significantly increased heterophyl/lymphocyte ratio in Turdus merula suggesting increased stress. This was especially evident at high infestation intensities when a significant decrease in body mass and body condition (body mass corrected for size) was also observed. Erithacus rubecula infested with more than 10 larvae tended to have lower haematocrit and blood haemoglobin. Plasma globulin concentration in T. merula tended to be affected by the presence of attached ticks and their infection with Borrelia, but this depended on the age of the bird. No association was detected among ticks, haemosporidea and Borrelia infection. We showed that ticks have detrimental effects on their avian hosts even under natural infestation conditions and that confirmed Borrelia reservoir hosts may also present symptoms of infection, though these may be subtle.     

Students’ perspectives on research and assessment of a model template designed to guide beginners in research in a medical school in Cameroon

Background

Research activities for medical students and residents (trainees) are expected to serve as a foundation for the acquisition of basic research skills. Some medical schools therefore recommend research work as partial requirement for certification. However medical trainees have many difficulties concerning research, for which reason potential remedial strategies need to be constantly developed and tested. The views of medical trainees are assessed followed by their use and appraisal of a novel “self-help” tool designed for the purposes of this study with potential for improvement and a wider application.

Methods

This study was a cross-sectional survey of volunteering final-year medical students and residents of a medical school in Cameroon.

Results

This study surveyed the opinions of a total of 120 volunteers of which 82 (68%) were medical students. Three out of 82 (4%) medical students reported they had participated in research activities with a publication versus 10 out of 38 residents (26%). The reported difficulties in research for these trainees included referencing of material (84%), writing a research proposal (79%), searching for literature (73%) and knowledge of applicable statistical tests (72%) amongst others. All participants declared the “self-help” tool was simple to use, guided them to think and better understand their research focus.

Conclusion

Medical trainees require much assistance on research and some “self-help” tools such as the template used in this study might be a useful adjunct to didactic lectures.

     

How to make the medical consultation more successful from a patient's perspective? Tips for doctors and patients from lay people in the United Kingdom, Italy, Belgium and the Netherlands

Objective

The aim of this study is to generate empirically based ‘tips’ from lay people on how medical consultations could become more successful from a patient perspective.

Methods

258 Lay people in the United Kingdom, Italy, Belgium and the Netherlands, distributed over 32 focus groups, were invited to formulate ‘tips’ for doctors as well as patients after rating the quality of communication from videotaped consultations and discussing their arguments in focus groups.

Results

Tips were remarkably similar across the four countries. Most tips reflect the professional literature, such as the importance of nonverbal communication, personal attention and empathy, but also addressed issues as how to deal with new technologies and new accessibility arrangements (triage). The tips were targeted to the consultation itself, its preparation and the aftercare. Tips for doctors were mirrored in tips for patients.

Conclusion

Lay people seem to be competent in participating in quality-of-care debates. They are well aware of patients’ own responsibilities. Besides, they have clear opinions about novel technology and healthcare arrangements (triage).

Practice implications

Listening to patients, showing empathy and personal attention seem to have a universal value. Doctors should be trained to practice these behaviors, healthcare managers in involving patients in practice reorganisations.     

Unproven stem cell-based interventions &amp; physicians’ professional obligations; a qualitative study with medical regulatory authorities in Canada

Background

The pursuit of unproven stem cell-based interventions (“stem cell tourism”) is an emerging issue that raises various concerns. Physicians play different roles in this market, many of which engage their legal, ethical and professional obligations. In Canada, physicians are members of a self-regulated profession and their professional regulatory bodies are responsible for regulating the practice of medicine and protecting the public interest. They also provide policy guidance to their members and discipline members for unprofessional conduct.

Methods

We conducted semi-structured telephone interviews with representatives from six different provincial Colleges of Physicians and Surgeons in Canada to discuss their experiences and perspectives regarding stem cell tourism. Our focus was on exploring how different types of physician involvement in this market would be viewed by physicians’ professional regulatory bodies in Canada.

Results

When considering physicians’ professional obligations, participants drew analogies between stem cell tourism and other areas of medical tourism as well as with some aspects of complementary alternative medicine where existing policies, codes of ethics and regulations provide some guidance. Canadian physicians are required to act in the best interests of their patients, respect patient autonomy, avoid conflicts of interest and pursue evidence-based practice in accordance with accepted standards of care. Physicians who provide unproven treatments falling outside the standard of care, not in the context of an approved research protocol, could be subject to professional discipline. Other types of problematic conduct include referrals involving financial conflict of interest and failure to provide urgent medically necessary care. Areas of ambiguity include physicians’ obligations when asked for information and advice about seeking unproven medical treatments, in terms of providing non-urgent follow-up care, and when asked to support efforts to go abroad by providing tests or procedures in advance that would not otherwise be medically indicated.

Conclusions

Specific policy guidance regarding the identified areas of tension or ambiguity may prove helpful for physicians struggling with these issues. Further consideration of the complex interplay of factors at issue in how physicians may (should) respond to patient demands related to unproven medical interventions while meeting their professional, legal and ethical obligations, is warranted.