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PubMed1994

Teaching clinical psychopharmacology on an inpatient psychiatric research center.

In this article we have shown how an inpatient Psychiatric Clinical Research Center has been used successfully to teach medical students and residents some basic principles of clinical psychopharmacology. Although teaching effectiveness and resident acceptance of the program have not been measured objectively (we intend to do this in the next 2 years), informal feedback about the CRC rotation has been enthusiastic. The clinical psychopharmacology curriculum in our department has been enhanced by the experience of trainees on a research unit. In the rapidly expanding area of psychopharmacology, where new drugs are continually coming on the market, the CRC provides an opportunity to demonstrate the biopsychosocial model and to explore the interface between the research and clinical aspects of psychopharmacology.

Academies and Institutes↗

PubMed1996

Substance use by surgical residents and students entering surgery.

We studied the use of alcohol, tobacco, and nine unprescribed or illegal substances by surgical residents and medical students accepted into surgical programs. With the exception of alcohol, surgical residents had less lifetime experience and used less than other residents or nonmedical college graduates. Students entering surgery had used these substances more frequently and were more likely to be using them regularly than were residents. Residency directors need to be aware of the change in attitude and use patterns of present residents as compared with those of the past.

Adult↗

PubMed1992

Comparison of dietary intakes in four selected European populations.

The composition of diet and food intakes in four selected European populations were compared. Dietary data (from the World Health Organization Project on Monitoring Trends and Determinants in Cardiovascular Disease) were measured by record methods and were available for middle-aged men in Finland (n = 653), France (n = 1128), Northern Ireland (n = 356), and southern Germany (Augsburg region; n = 899). Nutritional variables--which are independent of the absolute energy intake, such as the percentage supply of energy from macronutrients and the ratio of polyunsaturated to saturated fatty acids--were on the whole similar. However, striking differences were found in food intake and in the percentage supply of fat from different foods. The results indicate that detailed knowledge of consumption figures is necessary to develop prudent and acceptable nutrition intervention programs.

Adult↗

PubMed1993

Unique educational program in critical care medicine for the general internist.

OBJECTIVE: To determine the effect of a unique educational program in critical care medicine on the attitudes, knowledge, and skills of general internists who care for critically ill patients. DESIGN: Comparison of objective assessments and self-assessments obtained before and after the one-year educational program. SETTING/PARTICIPANTS: Eighteen general internists practicing in a 350-bed university-affiliated community teaching hospital. RESULTS: After the program, the internists felt significantly more competent in, knowledgeable about, comfortable with, and satisfied with caring for critically ill patients than they did when completing the precourse self-assessments (p < 0.05). Participants felt particularly more comfortable with managing ventilator patients and leading the advanced cardiac life-support team (p < 0.05). Comfort levels for other commonly performed critical care procedures did not vary. No significant change in knowledge test scores was noted from before to after the one-year program (61% vs 60%). Residents and nurses rated the internists' overall ability in critical care medicine to be the same as that of senior medical residents. They also favorably rated the internists on humanism, teaching skills, and interpersonal interactions. Residents also appreciated the decrease in their night call because of the program. CONCLUSIONS: This unique educational program increased comfort and satisfaction of general internists caring for critically ill patients. The program was well accepted by residents and nurses because of favorable interaction with the internists and a decrease in resident night-call responsibility. This curriculum is recommended to other teaching hospitals.

Adult↗

PubMed2002

[Ultrasound screening of renal cell carcinomas].

The increasing number of incidentally by ultrasound detected small renal cell carcinomas raises the question of the practicability and efficacy of a systematic screening for renal cell carcinoma by ultrasound. A two year screening program for renal cell carcinoma (RCC) was established for the general population (age > 40 years) in two cities, Mainz and Wuppertal. In cooperation with different health insurers, the organizers recruited general practitioners, internists and urologists in private practice who were experienced in and equipped for performing renal ultrasound. The screening was offered in the form of a cost free renal ultrasound in the first year and a re-examination in the second year. For any equivocal/positive renal mass, a reference ultrasound was provided the urology departments at the two university hospitals. 9959 volunteers participated in the screening program (49% male, 51% female) in the first year. The mean age was 61 (40-94) years. 79% of these participants returned for re-examination in the second year. Thirteen (0.1%) subjects were found to have a renal mass, of which nine were RCC. The sensitivity of the program was 82% (one year of follow-up). The predictive value was 2% for equivocal findings on initial exam and 50% for positive findings. The incidence of other abnormal findings was 12%. The screening program was well accepted by physicians in private practice and by the eligible population. The method proved effective, especially if equivocal findings were re-studied by reference sonography before further imaging studies such as CT and MRI were performed.

Adult↗

PubMedDate not supplied

Covered stent-graft treatment of traumatic internal carotid artery pseudoaneurysms: a review.

OBJECTIVE: To review the literature concerning the management with placement of covered stent-grafts of traumatic pseudoaneurysms of the extracranial internal carotid artery (ICA) resulting from penetrating craniocervical injuries or skull base fractures. METHOD: We have reviewed, from the Medline database, all the published cases in the English literature since 1990 and we have added a new case. RESULTS: We identified 20 patients with traumatic extracranial ICA pseudoaneurysms due to penetrating craniocervical injuries or skull base fractures who had been treated with covered stent-graft implantation. Many discrepancies have been ascertained regarding the anticoagulation therapy. In 3 patients the ICA was totally occluded in the follow-up period, giving an overall occlusion rate 15%. No serious complication was reported as a result of the endovascular procedure. CONCLUSION: Preliminary results suggest that placement of stent-grafts is a safe and effective method of treating ICA traumatic pseudoaneurysms resulting from penetrating craniocervical injuries or skull base fractures. The immediate results are satisfactory when the procedure takes place with appropriate anticoagulation therapy. The periprocedural morbidity and mortality and the early patency are also acceptable. A surveillance program with appropriate interventions to manage restenosis may improve the long-term patency.

Adult↗

PubMed2005

Preventive healthcare of infants in a region of Lebanon: parental beliefs, attitudes and behaviors.

OBJECTIVES: This study aimed to investigate healthcare seeking behaviors of mothers for themselves and their infants in the Bekaa Valley, Lebanon, to identify attitudes and beliefs towards the preventive healthcare of infants and to assess whether a healthcare-based intervention program would be accepted by the population. METHODS: Ninety-two interviews were conducted with women who had delivered a live birth in two hospitals in the Bekaa. The hospitals selected attracted women from different socioeconomic classes. RESULTS: Differences were found in adequacy of healthcare utilization based on household size, number of children and prenatal care utilization. There was a higher perception of barriers to healthcare by parents who did not seek adequate preventive care for their infants. Mothers of infants who had inadequate care had a lower perception of severity of illness and of physicians' ability to prevent illness. The population believes strongly that medical professionals are reliable sources of health information and guidance. Infants' mothers and grandmothers are important sources of healthcare-related information. CONCLUSIONS: Rates of preventive infant healthcare in the Bekaa need improvement. Any intervention must target mothers and grandmothers, as they appear to influence the medical care of infants. Other targets include parents of larger families. Dissemination of information regarding the seriousness of illness and the ability to prevent illness is required. The medical profession may influence health choices made by this population. However, further investigation of healthcare barriers, especially economic and geographic barriers, is needed. In preparing to improve healthcare utilization for infants in the Bekaa, local, regional and international organizations should refer to the population's beliefs, attitudes and behaviors described in this study, as these findings may aid in planning interventions that are likely to positively impact mothers and infants.

Adolescent↗

PubMed2002

Update on the role of triglycerides as a risk factor for coronary heart disease.

Elevated triglyceride levels represent an independent risk factor for coronary heart disease, and recently the National Cholesterol Education Program revised the acceptable level of fasting triglycerides from less than 200 mg/dL to below 150 mg/dL. However, a sizeable proportion of people in Western societies has persistently elevated triglyceride levels. Fortunately, hygienic and pharmacologic measures can have a considerable impact on reducing triglyceride levels. However, an important yet unanswered question is whether decreasing triglycerides beyond low-density lipoprotein cholesterol lowering contributes significantly to additional coronary heart disease event reduction.

Coronary Disease↗

PubMed2001

Adjuvant chemotherapy for colon cancer.

Colon cancer remains the third most common cancer, and cause of cancer-related death in the United States. Greater public awareness and acceptance of screening programs have contributed significantly to increasingly earlier detection of colon cancer and decreased mortality. Advances made in the understanding of this disease, both in terms of its clinical behavior and molecular pathogenesis, have translated into major improvements in its therapy. Several large randomized trials during the last two decades have helped the oncology community forge a successful multi-modality treatment strategy against colon cancer. These studies have defined the role of adjuvant therapy for colon cancer after curative surgery. Despite all the advances, a large number of patients continue to succumb to this disease, and the search for better therapies is still necessary. In this article, we discuss the evolution and the current state of adjuvant chemotherapy in colon cancer and briefly review new developments.

Antimetabolites, Antineoplastic↗

PubMed1996

Role of lung reduction in lung transplant candidates with pulmonary emphysema.

BACKGROUND: The average waiting time for candidates for lung transplantation (LTx) with end-stage emphysema is 21 months with a 15% mortality. We hypothesized that lung reduction might offer an alternative to LTx. METHODS: Of 95 patients with end-stage emphysema evaluated by our LTx program, 45 were accepted for both lung reduction and LTx and 35 underwent lung reduction. RESULTS: All 35 patients survived lung reduction. Thirty patients had a follow-up of 3 months. There was a significant improvement (p < 0.05) of forced expiratory volume in 1 second (0.64 to 0.97 L), forced vital capacity (2.12 to 2.76 L), residual volume (5.62 to 4.26 L), maximum voluntary ventilation (28.1 to 38.5 L/min), 6-minute walk (904 to 1,012 feet), Borg dyspnea index (3.7 to 2.4), and arterial carbon dioxide tension (44.9 to 41.6 mm Hg). Twenty patients (66%) were removed from the LTx list due to their significant improvement (group A). Compared with the remaining 10 patients with 3 months of follow-up (group B), percent increase in forced expiratory volume in 1 second (70% in group A versus 27% in group B) and in forced vital capacity (41% group A versus 18% group B) and percent decrease in residual volume (26% group A versus 1.5% group B) were significantly better in group A (p < 0.01). Seven patients in group B were bridged to LTx; 6 of these patients (86%) had hypercarbia before lung reduction compared with 8 (40%) in group A (p < 0.05). All are alive after LTx: the forced expiratory volume in 1 second is 53% and the forced vital capacity is 64% of predicted. CONCLUSIONS: Lung reduction is safe and effective in selected LTx candidates with end-stage emphysema and has the potential to provide an alternative to LTx. Long-term follow-up is warranted to confirm these results.

Adult↗

PubMed1987

Computer quantification of delta activity in sleep EEG.

The current project assessed the accuracy of a period-analytic computer program in the quantification of delta EEG activity during sleep for the purpose of the assignment of sleep stage. Ninety-four 25-sec epochs of data from two subjects were analyzed both using the computer and by two visual scorers in order to generate percent measures of the amount of delta in the EEG. This information was then used to assign stage score. A comparison of the inter-scorer and scorer/computer agreements showed good correspondence between them, with the human/computer contrasts being equivalent to the human/human contrasts. Data are presented for both the percent of delta in the records and for the agreement of stage score assignments. It was concluded that the computer program provided an acceptable alternative to human visual scoring. Suggestions as to how to implement digital computers in sleep research were presented.

Delta Rhythm↗

PubMed1989

Animation: a useful tool for protein molecular dynamicists, applied to hydrogen bonds in the active site of elastase.

Massive amounts of coordinate data result from molecular dynamics calculations. The animation program MDKINO is a simple but powerful tool for previewing or reviewing the results. In recent simulations of elastase, we have examined hydrogen bonding patterns, conformational changes involving shifts in ring positions and rotations of amino acid side chains, electric fields in interatomic space, and electric forces acting on chosen nuclei. Animation is also useful for checking on the stability of calculations in progress. Simple programming techniques achieve acceptable levels of animation with readily available hardware (PS330 or PS390 display with a serial interface to a laboratory VAX). In about half an hour, it is possible to make and watch a color stereo "movie" of a selected subsystem of a simulation (up to 1,000 frames of about 100 atoms each).

Binding Sites↗

PubMed2005

What influences participation in genetic carrier testing? Results from a discrete choice experiment.

This study explores factors that influence participation in genetic testing programs and the acceptance of multiple tests. Tay Sachs and cystic fibrosis are both genetically determined recessive disorders with differing severity, treatment availability, and prevalence in different population groups. We used a discrete choice experiment with a general community and an Ashkenazi Jewish sample; data were analysed using multinomial logit with random coefficients. Although Jewish respondents were more likely to be tested, both groups seem to be making very similar tradeoffs across attributes when they make genetic testing choices.

Adult↗

PubMed2005

[The new French rules for the attribution of renal transplants].

The French rules for the attribution of a kidney transplant are regularly evaluated and modified according to scientific progress, evolution of the waiting list and of health policies. Modifications, initiated by the Transplantation Commission of the French-speaking Society of Nephrology, have been introduced in 2004 by the Etablissement français des Greffes and aim at decreasing the number of patients on the waiting list having difficult access to transplantation because of their immunogenetic characteristics (rare ABO or HLA group, HLA immunization). Four points are concerned: 1/ better definition of hyperimmunisation; 2/ introduction of a program based on "acceptable mismatches" as a new priority for hyperimmunized patients; 3/ suppression of the full-match priority to non-immunized patients; 4/ attribution to immunized patients (anti-HLA antibodies=5-80%) who have difficult access to a transplant, of priorities similar to those followed for hyperimmunized patients. This article presents the new rules for the allocation of a kidney transplant and the rationale for the current modifications.

France↗

PubMed1991

Santiago Breastfeeding Promotion Program: preliminary results of an intervention study.

A prospective intervention study was undertaken in Santiago, Chile, to assess the impact of a breastfeeding promotion program and the acceptance and use of the lactational amenorrhea method for natural child spacing. The intervention study significantly increased the duration of exclusive breastfeeding and amenorrhea. In addition, the use of the lactational amenorrhea method proved highly efficacious, with an unplanned pregnancy rate of less than 0.5% by 6-month cumulative life table. Total family planning coverage at 6 months was increased in the intervention group.

Adolescent↗

PubMed2003

Effectiveness and safety of screening for diabetic retinopathy with two nonmydriatic digital images compared with the seven standard stereoscopic photographic fields.

BACKGROUND: The use of nonmydriatic cameras, which offer ease of screening and 45 degrees immediate imaging of the fundus, is gaining increasing acceptance for screening programs tailored to diverse conditions. We performed a study to evaluate the effectiveness and safety of screening for diabetic retinopathy with two nonmydriatic camera images compared with the seven standard stereoscopic 30 degrees fields (7SF). We also wished to determine whether safe screening guidelines could be established to identify patients needing referral to an ophthalmologist. METHODS: In this prospective masked cross-sectional study, we evaluated agreement in the assessment of the severity of diabetic retinopathy by means of two 45 degrees images centred on the optic disc and on the macula obtained with the Topcon CRW6 nonmydriatic camera and by means of 7SF photography and ophthalmologic slit-lamp biomicroscopy, both performed with pupil dilation. Between November 2000 and June 2001, 98 adult patients known to have type 1 or 2 diabetes mellitus who presented for the first time to the diabetic retinopathy clinic of a tertiary care centre in Montreal were enrolled consecutively. Thus, patient recruitment was weighted toward more severe retinopathy to ensure sufficient representation of less frequent but more severe levels. Each patient underwent nonmydriatic fundus photography of both eyes, followed by a complete ophthalmologic examination with pupil dilation by a single retina specialist and 7SF photography of both eyes with pupil dilation. The level of retinopathy was graded independently in each eye from the 7SF photographs according to the Early Treatment Diabetic Retinopathy Study (ETDRS) scale by two graders; an independent retina specialist adjudicated the rare instances of interreader disagreement in a masked fashion. Two months later, two graders independently graded the nonmydriatic images in a blinded fashion according to the ETDRS scale; a third observer adjudicated the rare instances of interreader disagreement. We measured concordance between grading results with the various screening techniques using the weighted and unweighted kappa statistic. We used sensitivity and specificity indices to determine safe screening guidelines to identify patients needing referral to an ophthalmologist. RESULTS: There was substantial agreement in the grading of retinopathy with nonmydriatic camera imaging and with 7SF photography, both for all eyes (kappa = 0.626 [standard deviation (SD) 0.045]) and for the eye with more severe disease (kappa = 0.654 [SD 0.063]). With nonmydriatic camera imaging, screening thresholds for patient referral to an ophthalmologist of very mild retinopathy (ETDRS grade 20), mild retinopathy (ETDRS grade 35) and moderate retinopathy (EDTRS grade 43) had sensitivity values of 97.9%, 97.1% and 53.3% respectively and specificity values of 81.3%, 95.5% and 96.9% respectively. Screening thresholds of very mild or mild retinopathy both correctly identified 100% of eyes with severe nonproliferative or proliferative retinopathy. With a screening threshold of mild retinopathy, screening with the nonmydriatic camera would lead to referral to an ophthalmologist of 37.8% of patients because of detected disease and of an additional 17.3% because of insufficient image quality in at least one eye, for a total of 55.1%. The overall sensitivity and specificity of a two-field nonmydriatic screening strategy with a threshold of mild retinopathy for referral of patients with insufficient image quality in at least one eye are 97.7% and 84.0% respectively. INTERPRETATION: Our results suggest that two-field nonmydriatic camera imaging is a safe screening strategy that may identify the patients with diabetes most in need of ophthalmologic care.

Cross-Sectional Studies↗

PubMed1995

Combined lung and liver transplantation in patients with cystic fibrosis. A 4 1/2-year experience.

Patients with cystic fibrosis who have end-stage respiratory failure and associated liver cirrhosis have been considered poor candidates for lung transplantation because of high morbidity and mortality resulting from hepatic insufficiency after the operation. Since April 1989, our policy has been to combine heart-lung or lung and liver transplantation in this group of patients. Between June 1990 and March 1995, among 25 patients accepted in the program for combined transplantation, nine died awaiting transplantation and 10 underwent one of the following procedures: heart-lung-liver transplantation (n = 5), en bloc double lung-liver transplantation (n = 1), sequential double lung-liver transplantation (n = 3), and bilateral lobar lung transplantation from a split left lung and reduced liver transplantation (n = 1). There were 5 male and 5 female patients. The ages of the recipients ranged from 10 to 24 years. Mean forced expiratory volume in 1 second was 29% and mean forced vital capacity was 35% of predicted values. All patients were infected with resistant Pseudomonas, three with Pseudomonas cepaceia, and two patients had Aspergillus species in addition. All patients had severe cirrhosis with portal hypertension. Four patients had a history of esophageal variceal bleeding and two had had previous portosystemic shunts. The operation was performed as a two-stage procedure, the intrathoracic operation being completed before the abdominal stage was begun. Cardiopulmonary bypass was used in all patients because of poor clinical condition. Immunosuppression consisted of azathioprine, cyclosporine, and prednisone, as for isolated lung transplantation. There were two perioperative deaths, one caused by primary liver failure and the second by early lung dysfunction. For the first 3 months after transplantation pulmonary infection was the most common cause of morbidity. Other complications included tracheal stenosis (n = 1), bronchial stenosis (n = 1), biliary stricture (n = 2), and severe ascites (n = 3). All were successfully treated. Obliterative bronchiolitis developed in three patients. This was stabilized with FK 506 in two patients; the other patient underwent retransplantation at 38 months but eventually died of bleeding. Actuarial survival was 70% at 1 year and remained unchanged at 3 years. Significant functional improvement was observed in all survivors. For patients who have chronic respiratory failure with advanced cirrhosis, lung transplantation combined with liver transplantation can be performed with a satisfactory outcome.

Adolescent↗

PubMed1992

Spontaneous regression of metastases in a case of bilateral renal cell carcinoma.

A patient is described who had undergone bilateral nephrectomy for renal cell carcinoma and who had been maintained on hemodialysis for the last 2 years. A total of 3 months after acceptance into the program he was found histologically to have metastatic pleural lesions, which had regressed spontaneously 1 1/2 years ago. Repeat clinical and radiological assessment has shown no tumor recurrence.

Carcinoma, Renal Cell↗