Successful surgical treatment of intraorbital arteriovenous malformations: case report

OBJECTIVE: Our purpose was to establish whether obstetric ultrasonography interpreted by a live video telemedicine link is comparable to interpretation by videotape review in a low-risk patient population. STUDY DESIGN: An Integrated Services Digital Network (ISDN 6) was established from three satellite offices to our central prenatal diagnostic center. Patients seen at these satellite offices had a complete fetal anatomic survey recorded onto videotape by a trained ultrasonographer. A live interactive video telemedicine link was then established to our center by the digital network, and a perinatologist directed the ultrasonographer through the anatomy survey. Subsequently a different perinatologist, blinded to the telemedicine interpretation, reviewed the videotaped examination. The reports from the videotaped and telemedicine scans were then compared on the basis of a score of 33 anatomic items. RESULTS: The first 200 patients seen at the satellite offices were included. Telemedicine and videotape interpretations provided similar scores in 84% of scans. In 17 of the 33 anatomic categories telemedicine provided significantly better scores than videotape, whereas in the remaining 16 anatomic categories the scores were equivalent. More videotape than telemedicine examinations required repeat ultrasonography because of suboptimal imaging (10% vs 3%, p = 0.003). CONCLUSIONS: The interpretation of obstetric ultrasonography with use of live video telemedicine is comparable to videotape review. Fetal telemedicine may prove to be a useful tool for providing ultrasonographic interpretation of fetal anatomy to a network of low-risk obstetric practices.     

Patients'' psychological and cosmetic experience after immediate breast reconstruction

To prepare freshmen dental students for clinical experiences, standardized patients (SPs) were used to teach basic skills in communication, examination, and record keeping. SPs allow students to practice and be assessed in a realistic, predetermined, and controlled setting. The SP cases integrated the clinical content from freshman "Preventive Periodontics" with the behavioral content taught in "Basic Patient Management." Six SP cases were developed: two oral hygiene instruction cases, two medical and dental history cases, and two head and neck examination cases. One case of each type was used for instructing the students, and the others were used for assessing student competency at the end of the course. The SP methodology was evaluated by comparing the performance of freshmen, who had taken the course, with sophomores, who had only traditional clinical experiences. To make the comparison, sophomores participated in the same SP assessment as the freshmen. Scores for both groups were analyzed in three skill areas: interpersonal, technical, and record keeping. Freshmen scored higher in all three skill areas, with significant differences of 21% in technical skills and 31% in record keeping skills.     

The relationship between preceptor expectations and student performance on 2 pediatric objective structured clinical examination stations

BACKGROUND: We designed 2 pediatric objective structured clinical examination stations, 1 anemia case associated with lead exposure and 1 failure-to-gain-weight case associated with extended breast-feeding, to evaluate third-year medical students who had studied in pediatric community preceptors' offices as part of a 12-week multidisciplinary ambulatory clerkship rotation. OBJECTIVE: To examine the relationship between preceptor expectations and student performance on these 2 objective structured clinical examination stations. METHODS: To elicit community preceptors' expectations of student performance, we constructed a 46-item survey replicating checklists filled out by simulated patients evaluating student performance on the objective structured clinical examination stations. The percentage agreement among preceptors for each checklist item as well as the percentage agreement between preceptor responses and student responses on each checklist item were calculated. A summary score of preceptor responses across all checklist items and a summary score for student responses across all checklist items on each station were calculated. The correlation coefficients between preceptor and student summary scores were then examined. RESULTS: Fifty-nine preceptor surveys were mailed and 38 were returned (64% response rate). Data were usable from 37 surveys. Eighty-nine percent (33 of 37)of the preceptors agreed that a third-year clerkship student should have the knowledge to care for the patient with anemia and 92% (34 of 37)of the preceptors agreed similarly for the growth-delay case. Agreement among preceptors on individual checklist items varied widely for both cases. Fifty-seven students studied at the anemia station and 34 students studied at the growth-delay station. The mean+/-SD agreement across the 26 items on the anemia case between preceptor responses and student responses was 62%+/-23% and, for the 21 items on the growth-delay case, 60%+/-17%. The mean+/-SD preceptor summary score for the anemia case was 17.4+/-3.8 (maximum, 26) and 16.0+/-3.6 (maximum, 21) for the growth-delay case. The mean student score on the anemia case was 15.5+/-3.7 (maximum, 26) and, for the growth-delay case, 10.0+/-4.5 (maximum, 21). The Pearson correlation coefficient between the preceptor and student scores on the anemia case was 0.19 (P=.15), and for the growth-delay case,-0.41 (P=.06). CONCLUSIONS: These data suggest community preceptors agree on topic areas in which students should be clinically competent. There was, however, considerable variation in agreement among preceptors about what preceptors believe students should be able to do and how the students actually perform. The overall percentage agreement between preceptor expectations and student performance appears to be no better than chance.     

An overview of the uses of standardized patients for teaching and evaluating clinical skills. AAMC

The author defines the term standardized patient (SP), the umbrella term for both a simulated patient (a well person trained to simulate a patient's illness in a standardized way) and an actual patient (who is trained to present his or her own illness in a standardized way). He first discusses the many values of simulated patients over actual patients as teaching and assessment tools in the classroom and refutes a few myths about the use of SPs. Then he recounts the origin and development of SPs over a three-decade period, beginning with his work as a neurologist at the Los Angeles County Hospital, where he trained a model from the art department to simulate a neurological patient and assist in the assessment of clinical clerks. He then describes additional roles of SPs that have developed, including: (1) their use in the Clinical Practice Examination created at Southern Illinois University School of Medicine and (2) the major use that has come into being over the last 10-15 years; facilitating the comprehensive assessment of clinical competence using multiple stations in examinations such as the objective structured clinical examination. He concludes with information about recent and current work on SPs, who are becoming more and more accepted in the assessment process, and urges skeptics not to make judgments about the value of SPs until they have experienced the technique firsthand and reviewed the literature concerning the extensive and often high-quality research about this assessment tool.     

The validity of an "indecision" score for prediction of proficiency of foremen.

"An 'indecision' score was obtained by counting the number of '?' responses to items in the Guilford personality inventories STDRC, Gamin, and Personnel Inventory. The three scores showed an average intercorrelation of .80, indicating that they measure much the same trait or traits. A combination of these three scores correlated +.14 and -.09 with a rating of proficiency of foremen in an industrial plant, whereas a significant negative correlation had been predicted. While the indecision score indicates something stable about individuals, it needs to be factor analyzed to be understood… " (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An optimality score for the neurologic examination of the term newborn

We describe the application of a revised version of the Dubowitz neurologic examination of the newborn in 224 low-risk, term newborn infants. The method has been updated by eliminating less useful items and including new items evaluating general movements and patterns of distribution of tone. An optimality score is included to make the evaluation more quantitative and for comparison with sequential examinations with neurophysiologic and imaging findings. The score is based on the distribution of the scores for each item in the population of low-risk term infants. We defined not only the most common pattern for each item but also the variability of the findings by using 10th and 5th centiles. Because most of the items assessing tone and the Moro reflex varied with gestational age between 37 and 42 weeks, the changes were incorporated in the scoring system. The total optimality score was the sum of the optimality scores of individual items. Although the association of 4 or more deviant scores was found in less than 10% of our infants, deviant results on 1 or 2 single items could be observed in a third of this normal population, suggesting that isolated deviant signs have little diagnostic value. In contrast, an abnormal distribution of tone patterns, which we have commonly observed in infants with brain lesions, was not found in this cohort.     

Immunohistochemical detection of bone morphogenetic protein-2 and transforming growth factor beta-1 in tracheopathia osteochondroplastica

The purpose of this study was to develop objective assessment instruments for use in psychomotor skill training and to test the instruments for interobserver reliability. Two checklist style instruments, one for suturing and one for endotracheal intubation, were developed through a process of review of standard texts, consultation with local experts and field testing. Following development they were used by paired examiners in an Objective Structured Clinical Examination (OSCE) setting to test the instruments for interobserver reliability. A total of 88 final year medical students were recruited from the five Ontario medical schools to participate as examinees. The checklists worked well within the practical constraints of a 10 minute OSCE station and demonstrated a high level of interobserver reliability with Kappa scores of 0.65 for the suturing checklist and 0.71 for the intubation checklist Furthermore, the Kappa scores for individual checklist items served to identify items which demonstrated poor interobserver reliability and thus highlighted them for review.     

Handedness and "automatization" cognitive style.

Evaluated the relation between "automatization" cognitive style and handedness, or degree of preferred-nonpreferred hand differentiation. 58 male undergraduates were tested on 8 cognitive tasks representing both automatized and nonautomatized abilities. After ipsatization of scores, 14 Ss were chosen as representing "strong automatization," and 14 Ss as "weak automatizers." All Ss were given 6 tests of manual performance using both preferred and nonpreferred hands. No differences were found between strong and weak automatizers in the degree of differentiation between overall preferred and nonpreferred hand performance. Explanations for these findings and the possible role of automatization cognitive style in hand differentiation in young children are discussed. (French summary) (15 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The relationship between the mini-mental state examination and cognitive functioning in normal elderly adults: a componential analysis

The relationship between the Mini-Mental State Examination (MMSE) and selected cognitive performance indices was examined in a sample of 251 non-demented adults over 75 years of age. MMSE items were divided into I 1 binomial content domains and an examination of these revealed that only seven had sufficient variability to predict cognitive performance. A factor analysis with these items yielded three factors, reflecting memory, spatial skill, and the ability to follow commands. After controlling for age and education, these factor scores were included as predictors of specific cognitive tasks including two measures of free recall, and two measures of visuospatial skill. The memory factor score was a strong predictor of the two free recall tasks and block design. The spatial factor score contributed to the prediction of the two visuospatial measures, as well as free recall of organizable words. The results suggest that, in normal ageing, the predictive value of the MMSE is due to subset of cognitively demanding items that are heavily influenced by both memory and visuospatial skills.     

Computer-assisted video evaluation of surgical skills

Compact video cameras have allowed the review of operations in self-directed learning sessions. Controlling the video viewing process by computer allows the selection of specific videotape segments containing the desired psychomotor skills to be evaluated--in this study, the steps involving laparoscopic tubal banding. Six faculty members were able to evaluate 23 videotapes efficiently without knowledge of the resident operator's identity. Because the computer allowed selection of only those frames of the videotape containing the skills to be evaluated, the duration of videotape seen was reduced by an average of 34% from the actual surgical time, with an increase in time saved as experience with the system was gained. Faculty members evaluated these events using a self-made checklist. It was possible to calculate the performance scores of each resident for the individual psychomotor skill components of the reviewed procedure. Computer-assisted video evaluation of surgical skills is technically feasible, allowing time-efficient review by multiple evaluators. With the development of psychometrically valid checklists for use with this technology, computer-assisted video evaluation of surgical skills may provide a new, innovative means of assessing surgical skills and training.     

A comparison of two methods to teach smoking-cessation techniques to medical students

PURPOSE: To evaluate two smoking-cessation practice exercises, one using standardized patients (SPs), the other using role playing by medical students. METHOD: In the spring of 1994 all 120 first-year University of California, San Francisco, School of Medicine Students were given lectures on the health effects of smoking and how physicians can help patients quit. Afterward some of the students were randomly assigned to two groups in which to practice counseling patients: Group 1 (n = 35) used SPs, Group 2 (n = 37) used role playing. Each of the Group 1 students practiced smoking-cessation techniques with an SP; the SP evaluated the student on cognitive and communication skills, assigned an overall rating, and provide feedback using a standardized form. The Group 2 students (as well as the 48 students not assigned to a group) role-played in pairs and used the same form to provide feedback. All the students evaluated their respective practice practices. Two weeks later 24 Group 1 and 31 Group 2 students participated in a clinic-skills-assessment exercise using SPs. As in the Group 1 practice exercise, each student was evaluated by an SP on cognitive and communication skills and assigned an overall rating. Data were analyzed through a number of statistical methods. The cost of the SP program was determined. RESULTS: The Group 1 students rated their practice exercise much more favorably than did the Group 2 students. However, there was no significant difference between the groups in their ratings by the SPs on the clinical-skills-assessment exercise. The use of SPs cost a great deal more than did the use of role playing. CONCLUSION: Although the students rated the SPs higher than they did the role playing, the two tools produced similar levels of skills attainment. The data suggest that having students practice smoking-cessation techniques through role playing may be as effective as using the more extensive SPs.     

Screening for addiction in patients with chronic pain and "problematic" substance use: evaluation of a pilot assessment tool

Assessing for the presence of addiction in the chronic pain patient receiving chronic opioid analgesia is a challenging clinical task. This paper presents a recently developed screening tool for addictive disease in chronic pain patients, and pilot efficacy data describing its ability to do so. In a small sample of patients (n = 52) referred from a multidisciplinary pain center for "problematic" medication use, responses to the screening questionnaire were compared between patients who met combined diagnostic criteria for a substance use disorder and those who did not, as assessed by a trained addiction medicine specialist. Responses of addicted patients significantly differed from those of nonaddicted patients on multiple screening items, with the two groups easily differentiated by total questionnaire score. Further, three key screening indicators were identified as excellent predictors for the presence of addictive disease in this sample of chronic pain patients.     

Molecular mechanisms of the hyperresponsiveness of airway smooth muscle in bronchial asthma

Chronic neurobehavioral effects of acute sarin poisoning were evaluated in 9 male and 9 female patients who were exposed to sarin poisoning in the Tokyo subway incident in Japan. The investigators used nine neurobehavioral tests, as well as a posttraumatic stress disorder checklist, 6-8 mo after the poisoning occurred. Serum cholinesterase activity in patients on the day of poisoning (i.e., March 20, 1995) ranged from 13 to 131 IU/l (mean=72.1 IU/l). The results of analysis covariance, in which age, education level, alcohol consumption, and smoking status (covariates) were controlled in 18 sarin cases and in 18 controls, showed that the score on the digit symbol (psychomotor performance) test was significantly lower in the sarin cases than in controls. Nonetheless, the scores for the General Health Questionnaires, fatigue of Profile of Mood States, and posttraumatic stress disorder checklist were significantly higher in the sarin cases than controls. The investigators added posttraumatic stress disorder to the covariates, and only the score on the digit symbol test was significantly lower in sarin cases. In addition, the results of stepwise multiple regression analysis in 18 sarin cases revealed that scores for the General Health Questionnaires, fatigue of Profile of Mood States (i.e., fatigue, tension-anxiety, depression, and anger-hostility)-together with the paired-associate learning test-were associated significantly with posttraumatic stress disorder. The association did not remain significant for the digit symbol test score. Perhaps a chronic effect on psychomotor performance was caused directly by acute sarin poisoning; on the other hand, the effects on psychiatric symptoms (General Health Questionnaire) and fatigue (Profile of Mood States) appeared to result from posttraumatic stress disorder induced by exposure to sarin.     

The Eating Behavior Scale. A simple method of assessing functional ability in patients with Alzheimer's disease

Health care providers and family members need practical methods of assessing functional skills of individuals with Alzheimer's Disease (AD). There are neuropsychological tests that identify areas of function and dysfunction in the brain, but discrepancies have been noted between test scores and functional behaviors in activities of daily living (ADLs). The Eating Behavior Scale (EBS) was developed to measure functional ability during meals. A sample of 30 patients with probable AD were observed using the EBS during two meals on two different days. There was a strong negative correlation between meal duration and the EBS score. That is, the lower the EBS score, the longer the time required to complete the meol. Mini-Mental Status Exam (MMSE) scores were positively correlated with EBS scores. Patients with higher MMSE scores and less time since diagnosis tended to have higher EBS scores, indicating greater independence in eating.     

Comparison of standardized patients and faculty in teaching medical interviewing

PURPOSE: This randomized controlled study compared the interviewing skills of first-year medical students receiving feedback primarily from standardized patients (SPs) with those of students receiving feedback primarily from faculty. METHOD: All 154 first-year students at the University of Oklahoma College of Medicine in 1993-94 were video-taped to assess baseline and post-instruction interviewing skills. All the students, randomized to one of three study groups, attended two four-hour workshops on interviewing skills. Instruction in the groups was as similar as possible except in the matter of who provided feedback. Two rating systems were used to rate the videotaped interviews for performances of targeted skills. RESULTS: Complete, usable data were available for 120 (78%) of the students. Skill ratings using the Arizona Clinical Interview Rating Scale were significantly higher for the "types of questions used" and "use of empathy" items in the SP-led feedback group. No significant difference in ratings was detected among the groups as measured by the Rotor Interactional Analysis System. CONCLUSION: The SPs were at least as effective as the faculty in effecting behavioral changes in the first-year medical students' interviewing skills.     

Development of a "Myeloma Risk Score" using a population-based registry on paraproteinemia and myeloma

Diagnostic systems for monoclonal gammopathies use bone marrow and X-ray examinations to exclude multiple myeloma (MM). Data from a population-based registry of unselected patients with paraproteinemia indicate that these tests are often done only when MM is suspected. We used 441 randomly selected patients to develop a simple four point "Myeloma Risk Score" based on two readily available laboratory tests. One point was given for paraprotein concentration > or = 10 g/l, one point for IgG and IgA, and two points for IgD and light chains only. A score of 0 or 1 indicated a low risk for MM, with scores of 2 and 3 signifying high risks. Sensitivity, specificity, positive and negative predictive value (PV) for the Myeloma Risk Score in the training sample were 92%, 88%, 79%, and 96% respectively. Extrapolating these results to a larger cohort showed that 90% of patients with a monoclonal gammopathy could be classified correctly as having MM or a non-myeloma condition. The Myeloma Risk Score can identify patients with a paraproteinemia at risk for MM, and who are therefore candidates for bone marrow and X-ray examination.     

A Monte Carlo study of factors affecting three indices of composite scale reliability.

In a Monte Carlo study, the number of response categories, number of items, covariance among items, and item "error" were varied to simulate scores following classical true score assumptions. Despite considerable literature examining the optimal number of response categories, this variable accounted for very little variance in the correlation of fallible composite scale scores and known "true" scores. In no situation did correlations substantially increase with the use of more than 5 response categories. The effects of the 4 variables were largely additive. The relative importance of the variables differed, however, according to whether an internal consistency or a stability estimate was used as the dependent variable. Results are discussed in terms of possible trade-offs for applied researchers. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Temporal stability of antisocial personality disorder: blind follow-up study at 8 years

We studied the relation between Helicobacter pylori and residual gastritis in 28 patients with gastric cancer on whom distal partial gastrectomy with Billroth I reconstruction was performed over a 13-month period. They were subjected to serologic testing along with endoscopic and histologic examinations before operation and at 3, 6, and 12 months after operation. Anti-H. pylori immunoglobulin G (IgG) and serum gastrin levels were measured by serologic tests. The presence or absence of gastritis was determined endoscopically, and gastric mucosal hexosamine levels were determined. Gastritis was measured quantitatively by histologic examination in specimens taken from the gastric mucosa using Rauws' score. After the initial histologic evaluation we divided the H. pylori-positive patients into two groups: those with a Rauws' score of 0 to 3 ("weak" gastritis group), and those with a Rauws' score of 4 to 10 ("strong" gastritis group), allowing us to compare the results of our three postoperative histologic examinations of the two groups for possible significant differences. Our endoscopic examinations showed gastric mucosal inflammatory changes in both H. pylori-positive and H. pylori-negative patients at 3, 6, and 12 months after operation, but there was no significant difference between these two groups at any point. During the histologic examinations, however, anti-H. pylori IgG assay had become negative in several patients in the "weak" gastritis group at 3 months after operation and was found to have become negative in 78% of all patients in that group 12 months after operation. In contrast, in the "strong" gastritis group H. pylori infection was still evident in the patients 12 months after operation, suggesting that "strong" histologic gastritis may have some connection to H. pylori infection, whereas "weak" histologic gastritis has no such connection. The gastric mucosal hexosamine level was higher in the "weak" gastritis group than in the "strong" gastritis group both before operation and at 6 and 12 months, indicating some relation between gastric inflammatory changes and hexosamine levels in gastric mucosa. It further suggested the possibility that H. pylori plays a role in destroying gastric mucosa by depleting mucin, thus acting as one (though not the only) cause of residual gastritis after distal partial gastrectomy. In conclusion, we found evidence that there is a relation between residual gastritis and H. pylori infection, but H. pylori is not the sole cause of residual gastritis after gastric surgery. A causal relation is difficult to detect by simple analysis of histologic findings or by endoscopic observation or clinical symptoms alone.     

A five-year study of graduates' performance on NCLEX-RN

A 5-year study of graduates' performance on NCLEX-RN was conducted using data from July 1988 through February 1994. This time frame related to the "new" test plan introduced in 1988 with pass/fail results for NCLEX analysis. Using a quota sampling technique of 188 graduates, selected admission and curriculum variables and National League for Nursing (NLN) Comprehensive Achievement Test scores were studied in relationship to NCLEX-RN examination results. The strongest indicators of success were SAT verbal scores, nursing grade point average, and NLN Comprehensive Achievement Test scores. In addition, logistic regression analyses identified three nursing courses in combination with the NLN Comprehensive Achievement Test score as a strong model for prediction. Even though pass/fail data limit statistical analyses, the predictor variables were strong at P = 0.0001. These findings are consistent with prior studies.