Impact of a longitudinal course on medical professionalism on the empathy of medical students.

OBJECTIVE: Medical education should enhance empathy. We examined, using self-assessment instruments and standardized patients (SPs), the impact on empathy, of a multi-year intervention (years 4-6 of medical training) that uses reflective learning approaches. METHODS: 241 final-year medical students participated; 110 from the 2018 graduation class (non-intervention group) and 131 from the 2019 graduation class (intervention group). Participants completed two self-reported empathy questionnaires - the Jefferson Scale of Empathy-Students (JSE-S) and the Interpersonal Reactivity Index (IRI) - and a personality questionnaire, the NEO Five-Factor Inventory. Additionally, SPs in a simulated station assessed participants' empathy with two patient-reported instruments: the Consultation and Relational Empathy (CARE) scale and the Jefferson Scale of Patient Perceptions of Physician Empathy (JSPPPE). RESULTS: Empathy scores were significantly higher in the intervention group compared to the non-intervention group when assessed by the SP (p < 0.001). No differences were found in self-reported questionnaires between the two groups. CONCLUSION: A longitudinal, multi-year reflection-based intervention enhanced empathy amongst medical students as assessed by SPs, but not when assessed by student self-reported measures. PRACTICE IMPLICATIONS: Multi-year reflective learning interventions during clinical training nurture empathy in medical students. Assessments completed by SPs or patients may enhance the evaluation of empathy.

Development and validation of a low-cost laparoscopic simulation box.

INTRODUCTION: The acquisition of laparoscopic technique skills in an operating room is conditioned by the expertise of the tutor and the number of training interventions by the trainee. For students and surgeons to use a laparoscopic simulator to train their skills, it must be validated beforehand. METHODS: A laparoscopic simulator box was designed, along with 6 interchangeable training games. The simulator was validated by a group of 19 experts, physicians with an experience from at least 100 laparoscopic surgeries, and 20 students of 4th to 6th grades of medical school (non-experts). To evaluate its construct validity, time-to-completion and the number of successfully completed games were assessed. We used 11 and 9-item questionnaires to gather information on content and face validity respectively. In both questionnaires, answers were collected through Likert-type scales, scored from 1 to 5. RESULTS: The group of experts required less time and successfully completed more games than the group of non-experts (p < 0.01). The group of non-experts gave a score ≥ 4 points on each of the questions regarding the content validity of the tool, however, the experts rated with a significant lower mean score the need for the simulator to learn the surgical technique (3.68 points; p < 0.01). Regarding the face validity, all items were graded with a score ≥ 4 points except for the question relating to the spatial realism (3.82 points). CONCLUSION: The laparoscopy simulation box and the games were valid means for training surgeons and medical students to develop the skills required for the laparoscopic technique.

Validation of the Jefferson Scale of Patient Perception of Physician Empathy Spanish (Spain) Version in Primary Care.

BACKGROUND AND OBJECTIVES: Empathy is considered a prerequisite for a successful physician-patient relationship. The Jefferson Scale of Patient Perceptions of Physician Empathy (JSPPPE) is a regularly-used, patient-rated measure of physician empathy. The aim of this study is to translate and analyze the reliability and validity of the JSPPPE Spanish (Spain) version (Sp-JSPPPE) in primary care in order to use it with medical trainees. METHODS: After translation and back translation of the JSPPPE, 369 patients from 21 primary care physicians in Pamplona (Navarre, Spain) completed the Sp-JSPPPE, a sociodemographic questionnaire, the Spanish (Spain) Consultation and Relational Empathy Measure (Sp-CARE), and a question about overall satisfaction. We studied internal reliability (Cronbach's α and ordinal α), homogeneity (corrected item-total correlations), construct validity (confirmatory factor analysis [CFA]) and concurrent validity (Spearman's correlation) of Sp-JSPPPE. RESULTS: Cronbach's α and ordinal α were 0.870 and 0.919, respectively, for the Sp-JSPPPE, and all corrected item-total correlations exceeded the accepted cutoff of 0.30, demonstrating high internal reliability and homogeneity. CFA corroborated the one-factor structure proposed in the original version. The total score for the Sp-JSPPPE was significantly correlated with sp-CARE (Spearman's ϱ 0.651, P<.001) and with overall patient satisfaction (Spearman's ϱ 0.504, P<.001). CONCLUSIONS: The results support the reliability and validity of the Sp-JSPPPE in primary care. Sp-JSPPPE could be useful in empathy assessment of medical trainees, both graduate and postgraduate, in the Spanish context.

Development and validation of a low-cost laparoscopic simulation box.

INTRODUCTION: The acquisition of laparoscopic technique skills in an operating room is conditioned by the expertise of the tutor and the number of training interventions by the trainee. For students and surgeons to use a laparoscopic simulator to train their skills, it must be validated beforehand. METHODS: A laparoscopic simulator box was designed, along with 6 interchangeable training games. The simulator was validated by a group of 19 experts, physicians with an experience from at least 100 laparoscopic surgeries, and 20 students of 4th to 6th grades of medical school (non-experts). To evaluate its construct validity, time-to-completion and the number of successfully completed games were assessed. We used 11 and 9-item questionnaires to gather information on content and face validity respectively. In both questionnaires, answers were collected through Likert-type scales, scored from 1 to 5. RESULTS: The group of experts required less time and successfully completed more games than the group of non-experts (p < 0.01). The group of non-experts gave a score ≥4 points on each of the questions regarding the content validity of the tool, however, the experts rated with a significant lower mean score the need for the simulator to learn the surgical technique (3.68 points; p < 0.01). Regarding the face validity, all items were graded with a score ≥4 points except for the question relating to the spatial realism (3.82 points). CONCLUSION: The laparoscopy simulation box and the games were valid means for training surgeons and medical students to develop the skills required for the laparoscopic technique.

Validation of a Sensor-Fitted Simulator for Upper Airway Examination.

OBJECTIVE: To validate a simulator for upper airway examination, fitted with sensors, for use as an academic tool for learning how to conduct examination of the upper airway and for evaluation of that learning. STUDY DESIGN: Validation study. SETTING: Undergraduate medical education. SUBJECTS AND METHODS: A group of 18 fifth-year medical students and another of 6 otorhinolaryngology specialists conducted 6 examinations each with the simulator. To investigate concurrent validity, we calculated the correlation between damage scores provided by the simulator and damage assessment by a specialist. To evaluate construct validity, we compared both groups with regard to damage scores, technical procedure, and time spent. To examine content and face validity, we used questionnaires based on a 5-point Likert scale. RESULTS: For concurrent validity, the correlation between the simulator's damage scores and the specialist's damage assessment was high: Spearman's ρ was 0.828 (P < .001). For construct validity, the group of students differed from the group of specialists in damage scores (P = .027) and in technical procedures (P < .001) but not in time spent. For content validity, all questionnaire statements were scored highly, and both groups had similar average scores. For face validity, the group of specialists considered the simulator to be realistic, and all statements on the questionnaire were rated with at least 4/5. CONCLUSION: Concurrent, construct, content, and face validity have been demonstrated for a sensor-fitted simulator for upper airway examination, which is therefore accurate enough to be used as an academic tool for learning and evaluation of learning.

Reliability and validity of the Spanish (Spain) version of the consultation and relational empathy measure in primary care.

BACKGROUND: Empathy is an essential competence in the medical field. There are no validated patient-rated empathy measures in Spanish (Spain). The Consultation and Relational Empathy (CARE) measure is a widely used patient-rated measure of physician empathy. OBJECTIVE: To analyse the reliability and validity of the Spanish (Spain) version of the CARE measure in primary care. METHODS: After translation, back translation and pilot testing, a convenient sample of 369 patients recruited through 21 primary care physicians in five primary care centres in Pamplona (Navarre, Spain) completed the Spanish (Spain) CARE (Sp-CARE) measure. The number of 'does not apply' or blank responses was calculated to assess acceptability. We analysed internal reliability by means of Cronbach's alpha and ordinal alpha and homogeneity with corrected item-total correlations. The construct validity was examined by confirmatory factor analysis (CFA) and concurrent validity by Spearman's correlation. RESULTS: We observed high acceptability; only 37 (1%) responses were marked 'does not apply' and only 3 (0.08%) were left blank. Cronbach's alpha and ordinal alpha for the Sp-CARE measure were 0.953 and 0.970, respectively, and all corrected item-total correlations exceeded the accepted cut of 0.30, demonstrating high internal reliability and homogeneity. CFA corroborated the one-factor structure proposed in the original version. The Sp-CARE measure total score was significantly correlated with overall patient satisfaction (Spearman's rho 0.45, P < 0.001). CONCLUSION: The results support the reliability and validity of the Sp-CARE measure as a patient-rated empathy measure in the primary care setting.

Technical flaws in multiple-choice questions in the access exam to medical specialties ("examen MIR") in Spain (2009-2013).

BACKGROUND: The main factor that determines the selection of a medical specialty in Spain after obtaining a medical degree is the MIR ("médico interno residente", internal medical resident) exam. This exam consists of 235 multiple-choice questions with five options, some of which include images provided in a separate booklet. The aim of this study was to analyze the technical quality of the multiple-choice questions included in the MIR exam over the last five years. METHODS: All the questions included in the exams from 2009 to 2013 were analyzed. We studied the proportion of questions including clinical vignettes, the number of items related to an image and the presence of technical flaws in the questions. For the analysis of technical flaws, we adapted the National Board of Medical Examiners (NBME) guidelines. We looked for 18 different issues included in the manual, grouped into two categories: issues related to testwiseness and issues related to irrelevant difficulties. RESULTS: The final number of questions analyzed was 1,143. The percentage of items based on clinical vignettes increased from 50% in 2009 to 56-58% in the following years (2010-2013). The percentage of items based on an image increased progressively from 10% in 2009 to 15% in 2012 and 2013. The percentage of items with at least one technical flaw varied between 68 and 72%. We observed a decrease in the percentage of items with flaws related to testwiseness, from 30% in 2009 to 20% in 2012 and 2013. While most of these issues decreased dramatically or even disappeared (such as the imbalance in the correct option numbers), the presence of non-plausible options remained frequent. With regard to technical flaws related to irrelevant difficulties, no improvement was observed; this is especially true with respect to negative stem questions and "hinged" questions. CONCLUSION: The formal quality of the MIR exam items has improved over the last five years with regard to testwiseness. A more detailed revision of the items submitted, checking systematically for the presence of technical flaws, could improve the validity and discriminatory power of the exam, without increasing its difficulty.

Matrix metalloproteinase-10 plays an active role in microvascular complications in type 1 diabetic patients.

AIMS/HYPOTHESIS: The role of metalloproteinase-10 (MMP-10) in type 1 diabetes is not known. We hypothesise that it plays a role in the onset and progression of diabetic nephropathy and retinopathy. METHODS: Serum MMP-10 levels from 269 patients with type 1 diabetes were measured, and their association with microvascular complications was analysed. We also studied whether knocking out the Mmp10 gene influenced the extent of renal injury and retinal damage in a streptozotocin-induced diabetic mouse model. RESULTS: The risk of nephropathy and proliferative retinopathy associated with the highest vs the lowest MMP-10 tertile was increased three to four times independently of the classical risk factors. Accordingly, renal function and morphology were better preserved in diabetic Mmp10 −/− mice than in their Mmp10 +/+ counterparts. There were more kidney-infiltrating macrophages in diabetic Mmp10+/+ mice, suggesting that MMP-10 contributes to the inflammatory response leading to microvascular complications. The loss of neuronal cells in the retinas of diabetic Mmp10 +/+ mice was higher than in Mmp10 −/− mice. Retinal inflammation was decreased in Mmp10 −/− mice, as indicated by their reduced retinal caspase-1 levels. CONCLUSIONS/INTERPRETATION: MMP-10 is involved in the development of microvascular complications in type 1 diabetes and emerges as a potential therapeutic target for slowing down the evolution of diabetic nephropathy and retinopathy.

A randomized trial of cardiopulmonary resuscitation training for medical students: voice advisory mannequin compared to guidance provided by an instructor.

INTRODUCTION: Current European Resuscitation Guidelines 2010 recommend the use of prompt/feedback devices when training for cardiopulmonary resuscitation (CPR). We aimed to assess the quality of CPR training among second-year medical students with a voice advisory mannequin (VAM) compared to guidance provided by an instructor. METHODS: Forty-three students received a theoretical reminder about CPR followed by a 2-minute pretest on CPR (compressions/ventilations cycle) with Resusci Anne SkillReporter (Laerdal Medical). They were then randomized into a control group (n = 22), trained by an instructor for 4 minutes per student, and an intervention group (n = 21) trained individually with VAM CPR mannequin for 4 minutes. After training, the students performed a 2-minute posttest, with the same method as the pretest. RESULTS: Participants in the intervention group (VAM) performed more correct hand position (73% vs. 37%; P = 0.014) and tended to display better compression rate (124 min vs. 135 min; P = 0.089). In a stratified analyses by sex we found that only among women trained with VAM was there a significant improvement in compression depth before and after training (36 mm vs. 46 mm, P = 0.018) and in the percentage of insufficient compressions before and after training (56% vs. 15%; P = 0.021). CONCLUSIONS: In comparison to the traditional training method involving an instructor, training medical students in CPR with VAM improves the quality of chest compressions in hand position and in compression rate applied to mannequins. Only among women was VAM shown to be superior in compression depth training. This technology reduces costs in 14% in our setup and might potentially release instructors' time for other activities.

Hyperhomocysteinaemia induced by dietary folate restriction causes kidney oxidative stress in rats.

Diet is the most common cause of mild hyperhomocysteinaemia (HHcy), which occurs in approximately 5-7 % of the general population. Since HHcy causes endothelial damage by oxidative stress in different organs, the present study was designed to examine whether HHcy might be involved in renal oxidative stress. Twenty-five male Wistar rats were randomly divided into two groups: one (n 13) was fed ad libitum a folate-free diet (FF) and the other (n 12) was fed the same diet supplemented with folic acid (control, CO). After 8 weeks the animals were killed and kidneys removed. Malondialdehyde (MDA), superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities were measured in plasma and kidney homogenates. Renal tissue sections were analysed by indirect immunostaining with the primary antibody against oxidatively modified LDL receptor (LOX-1). A marked HHcy was confirmed in the FF group. As compared with CO animals, MDA levels in plasma and kidney homogenate were significantly higher in FF rats (P < 0.05). Similarly, renal GPx and SOD activities were significantly higher in the FF group (P < 0.001). No differences were found in LOX-1 immunohistochemical expression, which in the two groups was displayed in tubular cells. The present study provides evidence that HHcy does produce renal oxidative stress mediated by lipid peroxidation, and that the increased kidney MDA displayed by FF animals may enhance kidney antioxidant activity and thereby attenuate both kidney damage and expression of LOX-1.

Hematotesticular barrier is altered from early stages of liver cirrhosis: effect of insulin-like growth factor 1.

AIM: The pathogenesis of hypogonadism in liver cirrhosis is not well understood. Previous results from our laboratory showed that IGF-1 deficiency might play a pathogenetic role in hypogonadism of cirrhosis. The administration of IGF-1 for a short period of time reverted the testicular atrophy associated with advanced experimental cirrhosis. The aim of this study was to establish the historical progression of the described alterations in the testes, explore testicular morphology, histopathology, cellular proliferation, integrity of testicular barrier and hypophyso-gonadal axis in rats with no ascitic cirrhosis. METHODS: Male Wistar rats with histologically-proven cirrhosis induced with carbon tetrachloride (CCl4) for 11 wk, were allocated into two groups (n = 12, each) to receive recombinant IGF-1 (2 microg/100 g.d, sc) for two weeks or vehicle. Healthy rats receiving vehicle were used as control group (n = 12). RESULTS: Compared to controls, rats with compensated cirrhosis showed a normal testicular size and weight and very few histopathological testicular abnormalities. However, these animals showed a significant diminution of cellular proliferation and a reduction of testicular transferrin expression. In addition, pituitary-gonadal axis was altered, with significant higher levels of FSH (P<0.001 vs controls) and increased levels of LH in untreated cirrhotic animals. Interestingly, IGF-1 treatment normalized testicular transferrin expression and cellular proliferation and reduced serum levels of LH (P = ns vs controls, and P<0.01 vs untreated cirrhotic group). CONCLUSION: The testicular barrier is altered from an early stage of cirrhosis, shown by a reduction of transferrin expression in Sertoli cells, a diminished cellular proliferation and an altered gonadal axis. The treatment with IGF-1 could be also useful in this initial stage of testicular disorder associated with compensated cirrhosis.

In vivo assessment of the mitochondrial response to caloric restriction in obese women by the 2-keto[1-C]isocaproate breath test.

The 2-keto[1-(13)C]isocaproate breath test has been proposed as a tool to detect mitochondrial dysfunction in alcoholic liver disease. The aim of this study was to evaluate if the 2-keto[1-(13)C]isocaproate breath test could detect in vivo dynamic changes on mitochondrial activity due to caloric restriction in obese women. Fifteen obese women (body mass index [BMI] > 30 kg/m(2)) participated in the study at baseline. Ten of these women agreed to participate on a diet program to induce body weight loss. Fifteen lean women (BMI < 25 kg/m(2)) were included as a control group. The breath test was performed by the oral administration of the tracer measuring (13)CO(2) enrichment in breath before and after ingestion using isotope ratio mass spectrometry. Body composition, resting energy expenditure, and plasma levels of insulin and leptin were measured. There were no relationships observed between the 2-keto[1-(13)C]isocaproate breath test and the plasma insulin (before diet: P =.863; after diet: P =.879), or leptin (before diet: P =.500; after diet: P =.637). In obese women before treatment, kilograms of fat free mass (P =.108), resting energy expenditure adjusted for body composition (P =.312), and the 2-keto[1-(13)C]isocaproate breath test (P =.205) were similar in comparison to lean women. However, 2-keto[1-(13)C]isocaproate oxidation tended to increase after dieting and was significantly higher than in controls (P =.015). These data suggest that the 2-keto[1-(13)C]isocaproate breath test reflected the adaptive modifications in mitochondrial oxidation in response to caloric restriction in obese women.

Effects of protein vs. carbohydrate-rich diets on fuel utilisation in obese women during weight loss.

BACKGROUND: Energy restriction is a common therapeutic approach for weight reduction, but the most effective macronutrient distribution of the hypoenergetic diet as well as the role of the metabolic processes involved require further investigations. OBJECTIVE: To study the effect of a high protein (HP) hypoenergetic diet compared with a high carbohydrate (HC) hypoenergetic diet on fuel utilisation changes during the weight loss process in obese women. DESIGN: Eleven obese (BMI>30) women were randomly assigned to a 10w dietary intervention study comparing HP (30% protein) or HC (55% carbohydrate) energy restricted diets providing 30% energy fat content. Substrate utilisation was evaluated by indirect calorimetry. Body weight and composition (Bod Pod) and blood measurements were performed before and after weight loss. RESULTS: On average, the individuals on the HP dietary group lost 4.4 kg more than those in the HC program (p<0.50), which was mainly due to a fat mass loss (3.7 kg, p<0.05) with no statistical differences in lean body mass reduction. These losses were accompanied by a significant decrease in fasting leptin in the HP group (-52%; P<0.05). On the other hand post-absorptive lipid oxidation decreased in the HC group (-48%) and remained unchanged in the HP groups. CONCLUSIONS: The replacement of some dietary carbohydrate by protein in energy restricted diets, improves weight and fat losses and specifically promotes lipid oxidation in the fasting state, without major different in lean body mass depletion.