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PubMed1986

Effects of exercise training during hemodialysis.

Fourteen maintenance hemodialysis patients volunteered to participate in a 6-month program of exercise training. The exercise was performed on a stationary bicycle during the hemodialysis treatment. Six maintenance hemodialysis patients served as control without exercise training. Exercising patients participated in 91% of all possible exercise sessions. The exercise group showed a significant (23%) increase in maximal oxygen consumption over the 6 months. No change in exercise capacity resulted in the control group. Five of eight hypertensive patients in the exercise group decreased or discontinued antihypertensive medications. No changes occurred in hematocrit or lipid profiles in either group. We conclude that exercise training during the hemodialysis treatment is technically feasible and safe for appropriately screened patients and will increase exercise capacity, and in some patients improve blood pressure control. Exercise during dialysis also improves compliance to regular exercise and facilitates supervised exercise sessions, which are desirable in this patient group.

Antihypertensive Agents↗
PubMed2001

[Telemetric intraoperative diagnosis among hospitals in Trentino: first evaluations and optimization of the procedure].

Telemetric, intraoperative frozen section diagnosis may be a useful tool for rural hospitals lacking an in-house pathology service. As a part of a Health Ministry Project on Telemedicine in Trentino (northern Italy), we developed a static telemicroscopy system (STeMiSy). This system connects the rural hospital of Cles with the main hospital of Trento. The two hospitals are 40 kilometers apart, and the road connecting the two towns runs across the mountains and has a heavy traffic. Before putting STeMiSy into practice, we tested the software and hardware on the LAN of the regional hospital system, by connecting the pathology services of Trento and Rovereto (20 kilometers apart). This test phase lasted three months and has not revealed major problems in the LAN nor in the robotic microscope, which was always precise and reliable. The quality of the images and the speed of transmission were largely sufficient for intraoperative frozen section diagnosis. Minor details of the histological slides were not always appreciated on the panoramic view. This loss of some details may be due to the quality of the panoramic view, which represents the 'surfing map' to read the cases. Nevertheless, the recognition of these small details was not so relevant as to change the surgical approaches. An audioconference system, utilizing the same transmission channel, not only slightly slowed the transmission but also caused some instability to the system. The audioconference system has therefore been abandoned, and when necessary we used the normal telephone. Macroscopic images of the whole surgical specimen, the surgeon's responsibility for the sampling, good technical quality of the slide, and good training will allow us to perform remote frozen section diagnosis in the absence of the pathologist. We believe that the main, and probably only, difficulty for this approach is not of a technical nature, but reflects the pathologist's resistance to making a remote video diagnosis.

Attitude of Health Personnel↗
PubMed1998

Training model for "beating-heart" coronary artery anastomoses.

The principal technical challenge in "off-pump" coronary surgery is to perform an accurate coronary anastomosis on a beating heart. For the purpose of training our residents in performing off-pump coronary artery anastomoses, we have developed a mechanical heart simulator in which trainees can practice performing these anastomoses repeatedly until a satisfactory level of skill and confidence is attained.

Anastomosis, Surgical↗
PubMed2003

Effectiveness of a training program for ECT nurses.

Electroconvulsive therapy (ECT) is a highly technical procedure requiring a team that consists of an anesthetist, a psychiatrist, a clinical nurse specialist, and recovery nurses. Traditionally, nursing education and training in the context of providing a safe and high standard of care has not been addressed. Ninety-two nurses from 42 different health agencies participated in a training program focusing on defibrillation, electrocardiogram (ECG) and electroencephalogram (EEG) monitoring, intubation, stimulus dosing, setting up the ECT equipment, and caring for the patient. A non-experimental, one-group, pretest-posttest research design was used in this study to evaluate the effectiveness of the training program for nurses working with ECT. Effective training for nurses was hypothesized to make a difference in the standards of practice and clinical effectiveness for patients undergoing ECT. Findings from this study indicated a major knowledge deficit in key components of ECT among nurses who have responsibilities in this area of nursing care. With effective training, nurses' confidence levels increased related to setting up the equipment, administering a double dose, helping with intubation, and using a defibrillator. If nurses are to effectively function as team members in the ECT procedure, they must receive the training necessary to prepare them for this important role. The results of this study support the recommendation of the Royal Australian and New Zealand College of Psychiatrists that ECT nurses should be appropriately trained in anaesthetic and resuscitation techniques and modern ECT practice.

Education↗
PubMed2003

Optoelectronic measures in the analysis of running target shooting.

In this study, we examined the construct validity and practical significance of an optoelectronic shooting training system (Noptel ST 2000 Sport) for the technical analysis of running target shooting. A total of 37 male shooters of three different skill levels participated in the study. Principal component analysis revealed four common factors of 16 variables describing the aiming trajectory of the rifle barrel: (i) Holding area, (ii) Accuracy of aiming, (iii) Cleanness of triggering and (iv) Time on target. These factors were suggested to describe the essential components of running target shooting. According to the discriminant analysis, the shooters of various skill levels seemed to discriminate successfully into three groups when the aiming trajectory data were analysed. Finally, the aiming trajectory variables represented a 43% of the total variance in the shooting score. In summary, the present data indicated that the optoelectronic shooting training system had practical significance and supported the technical analysis of rifle barrel movement in running target shooting. A sub-set of variables, which reflect the essential information of running target shooting performance, were outlined for training and coaching purposes.

Adult↗
PubMed1998

Comparing the psychometric properties of checklists and global rating scales for assessing performance on an OSCE-format examination.

PURPOSE: To compare the psychometric properties of checklists, global rating scales preceded by a checklist, and global rating scales alone in assessing surgery residents' performances on an OSCE-like technical skills examination. METHOD: In 1996, 53 general surgery residents with one to six years of postgraduate training participated in a performance-based examination of technical skills consisting of eight 15-minute stations (bench-model simulations of operative procedures in general surgery). Two qualified surgeons marked at each station, one using a task-specific checklist (C) and a subsequent global rating scale (Gc), the other using a global rating scale only (G). RESULTS: Interstation reliabilities measured by Cronbach's alpha were .79 for C, .89 for Gc, and .85 for G. A series of multiple regressions predicting level of training from test scores revealed an R2 of .584 for C alone, which increased to .711 when Gc was entered after (p < .001), and increased to .704 when G was entered after C (p < .001). However, R2 for Gc alone was .711, and for G alone was .704, neither of which changed when C was entered into the prediction (p > .10). The R2 for Gc and G predicting level of training (.725) was not significantly greater than that of either Gc or G alone. A very similar pattern of results was seen when C, Gc, and G were used to predict independent evaluations of the operative outcomes. CONCLUSIONS: Global rating scales scored by experts showed higher inter-station reliability, better construct validity, and better concurrent validity than did checklists. Further, the presence of the checklists did not improve the reliability or validity of the global rating scale over that of the global rating scale alone. These results suggest that global rating scales administered by experts are a more appropriate summative measure when assessing candidates on performance-based examinations.

Educational Measurement↗
PubMed2000

Training and research for implementation of health care system reform in Cambodia.

One important objective of Technical Co-operation is institutional strengthening. Human resource development is understood as a means of improving the implementation of health care system development and an important factor for sustainability. Health care system reform is also a concern in Cambodia, where it has suffered from a period of war and insecurity previously, and now is beginning to aim for long term development. The implementation of the reform started four years ago with external support. This paper will show how capacity can be built and services developed under the specific circumstances of Cambodia, with technical cooperation and support from neighbouring countries through the SEAMEO TROPMED network. Training courses have been developed and research studies have been conducted to strengthen the role of the National Institute of Public Health and to aim for quality improvement. In addition, impact of training to improve management at provincial/district level was measured.

Academies and Institutes↗
PubMedDate not supplied

The evolution of biomedical equipment technology.

This feature article presents an overview of how the biomedical equipment technology field developed. It begins with some of the early medical equipment breakthroughs, such as the discovery of X rays. The article then traces the key role of the military in electronic technology design, leading to the concept of specially trained individuals to maintain medical equipment. The Technical Education Research Center is discussed, along with the evolution of BMET schools. Formal BMET education had a strong advocate in Ralph Nader, whose concerns about electrical safety in hospitals supported the need for trained technicians to test medical equipment. BMET certification, BMET careers, and Clinical Engineering are discussed. The article concludes with some speculation on healthcare reform and its possible effect on the biomedical equipment profession.

Biomedical Engineering↗
PubMed2005

[Identification process in hemodialysis patients: impact of the technique on the life trajectory].

The haemodialysis is a palliative technical treatment relatively recent which makes it possible insufficient renal to continue to live. Those indefinitely follow in weekly time three meetings of extra-renal purification as long as they are not transplanted. Within the framework of the research task realized for obtaining the licence and the diploma of framework of health, I was interested in the trajectory of life and the identity of these patients by questioning the processes which lead it to be qualified by its treatment and becoming one "haemodialysis". I chose a step of sociological investigation of nature by leading a comparative analysis between two centres of haemodialysis. The trajectory of the patient is defined by a process in stages: the initial shock precedes the adaptation by the sick person and supports the emergence of a profane knowledge which will be or not recognized by the professionals of dialysis according to centres'. The technique structure also the identity process of the patients, process marked by signs of entry in the deviating career and/or stigmatization, which take part to build in return a singular identity, i.e. defined by a deficit of specific identity. This deficit could explain the request for training and the emergence of a technical skill among certain patients, whereas they attend heavy centres of haemodialysis. The recognition of the patient as an actor of the process of care as well as looking after redefines the place of the nurses who can find a benefit for their professional identity there.

Adaptation, Psychological↗
PubMed2005

Potential targets to encourage a surgical career.

BACKGROUND: Our goal was to identify factors that can be targeted during medical education to encourage a career in surgery. STUDY DESIGN: We conducted a cross-sectional survey of first and fourth year classes in a Liaison Committee on Medical Education-accredited medical school. Students scored 19 items about perceptions of surgery using a Likert-type scale. Students also indicated their gender and ranked their top three career choices. RESULTS: There were 121 of 210 (58%) first year and 110 of 212 (52%) fourth year students who completed the survey. First year students expressed a positive correlation between surgery and career opportunities, intellectual challenge, performing technical procedures, and obtaining a residency position, although length of training, work hours, and lifestyle during and after training were negatively correlated with choosing surgery. Fourth year student responses correlated positively with career and academic opportunities, intellectual challenge, technical skills, role models, prestige, and financial rewards. Factors that correlated negatively were length of training, residency lifestyle, hours, call schedule, and female gender of the student respondent. Forty-four percent of first year male students expressed an interest in surgery versus 27% of fourth year male students (p < 0.04). Eighteen percent of first year female students expressed an interest in surgery versus 5% of fourth year female students (p < 0.006). CONCLUSIONS: Lifestyle issues remain at the forefront of student concerns. Intellectual challenge, career opportunities, and technical skills are consistently recognized as strengths of surgery. Additionally, fourth year students identify role models, prestige, and financial rewards as positive attributes. Emphasizing positive aspects may facilitate attracting quality students to future careers in surgery.

Algorithms↗
PubMed2002

Assessment of technical surgical skills.

OBJECTIVE: To review methods of assessment of technical surgical competence, and to point out the potential benefit of such assessment to training and safe practice. DESIGN: Review of publications about methods of evaluation of technical surgical competence. Studies were identified through MEDLINE using the keywords surgery, assessment, operative skills, training, and competence. The references cited in these studies were reviewed to find out whether any other trials fitted the selection criteria. SETTING: Teaching hospital, Denmark. RESULTS: There are several validated methods that allow objective assessment of operative skills for both open and laparoscopic surgery. CONCLUSIONS: Objective assessment of technical surgical skills is possible and reliable and valid methods are available. There are good reasons to implement evaluation programmes as a part of surgical education.

Clinical Competence↗
PubMedDate not supplied

The rhesus monkey as an animal model for training in interventional neuroradiology.

The angiographic anatomy of the external carotid artery system in the rhesus monkey is described. Similarities and differences between human and monkey anatomy are emphasized, as well as anatomic variations and potential collateral pathways. Superselective angiography and embolization in the external carotid artery system of the rhesus monkey proved to be technically feasible and potentially represents an excellent training model for surgical neuroangiographic techniques.

Animals↗
PubMedDate not supplied

Gastrointestinal endoscopy training in India.

A structured endoscopy training program with clear goals for proper teaching and evaluation serves to alleviate apprehensions in the minds of trainees regarding this crucial area. It also ensures that training is acquired not in isolation but in the setting of ongoing patient care, so that the emphasis is on how the procedure fits into the overall management plan for the patient. By specifying the details of the endoscopy unit set-up, the qualifications of the trainer and the number of procedures to be performed by the trainee, it is hoped that uniformity will be produced in the quality of training imparted, whether it be in a teaching or a non-teaching hospital. The end-product of such training, through the DM/MCh or the DNB stream, is a gastroenterologist who is also a certified endoscopist, capable of performing all standard diagnostic and therapeutic procedures. A further period of focused training for 1 to 2 years is required to achieve the level of competence expected of an advanced therapeutic endoscopist. There is little room for short-term training courses in endoscopy for the basic training of an endoscopist, although such courses are useful as CME activities, for the maintenance and renewal of skills of the trained endoscopist, as well as providing him with exposure to new and evolving therapeutic techniques. Efforts at improving and standardizing the training and practice of GI endoscopy in India are likely to remain exercises in futility without the active and dynamic involvement of all the leading professional societies in the country. The need of the hour is the establishment of technical committees for laying down standards in training and practice of GI endoscopy that should be voluntarily approved by all these societies so that they may then be implemented by the State medical councils and the MCI. A move in this direction from within the profession is far more appropriate and is also likely to find greater acceptance than such moves imposed from above, at the behest of judicial authorities. A system of hospital accreditation committees for large public and private sector hospitals offering endoscopy services, supervised by the accreditation committee of the State medical council, needs to be established. Clinics and nursing homes offering these services also need to be approved by the same committee after meeting standards similar to those laid down for larger hospitals. Mechanisms for audits of performance and outcome of endoscopic procedures as well as periodic participation in CME activities for maintenance of skills and expertise need to be established and linked to periodic renewal of credentials for practising GI endoscopy. Procedures for credentialing for new endoscopic techniques need to be established. The path ahead is long and arduous but we must tread it for it will only become more difficult if we procrastinate.

Clinical Competence↗
PubMed2004

Phantom-based multimodal interactions for medical education and training: the Munich Knee Joint Simulator.

Simulation environments based on virtual reality technologies can support medical education and training. In this paper, the novel approach of an "interactive phantom" is presented that allows a realistic display of haptic contact information typically generated when touching and moving human organs or segments. The key idea of the haptic interface is to attach passive phantom objects to a mechanical actuator. The phantoms look and feel as real anatomical objects. Additional visualization of internal anatomical and physiological information and sound generated during the interaction with the phantom yield a multimodal approach that can increase performance, didactic value, and immersion into the virtual environment. Compared to classical approaches, this multimodal display is convenient to use, provides realistic tactile properties, and can be partly adjusted to different, e.g., pathological properties. The interactive phantom is exemplified by a virtual human knee joint that can support orthopedic education, especially for the training of clinical knee joint evaluation. It is suggested that the technical principle can be transferred to many other fields of medical education and training such as obstetrics and dentistry.

Computer Graphics↗
PubMed2004

Is bioethical training useful in preparing doctors to take decisions in the emergency room?

We study the decisions taken in five real cases by 178 doctors working in hospital emergency services and compare their decisions with those proposed a reference group composed of professionals with a master's degree in bioethics. The findings of our study point to an increased ability to take difficult decisions in critical situations involving the use of life-support measures in the emergency room. The group of professionals chosen as "gold standard", despite lacking the training and clinical preparation of emergency doctors, made decisions that were technically very close to the most suitable. In this respect, an adequate ethical training facilitated the taking of decisions that required the involvement of personally held values, underlining the need for such training in the case of professionals who will work in hospital emergency services.

Adult↗
PubMed1985

The performance of a new commercial ocular fluorophotometer in the clinical environment.

Studies using the Fluorotron Master fluorophotometer in vitro and in vivo are presented. The in vitro tests include lower limit of detection and error of measurement, and the in vivo tests include spread function, axial resolution, and reproducibility. Results show that many technical problems have been resolved by this system. Furthermore, this system can be satisfactory handled by technical personnel after short periods of training.

Adult↗
PubMed2000

Skills evaluation in minimally invasive surgery using force/torque signatures.

BACKGROUND: One of the more difficult tasks in surgical education is to teach the optimal application of instrument forces and torques necessary to facilitate the conduct of an operation. For laparoscopic surgery, this type of training has traditionally taken place in the operating room, reducing operating room efficiency and potentially affecting the safe conduct of the operation. The objective of the current study was to measure and compare forces and torques (F/T) applied at the tool/hand interface generated during laparoscopic surgery by novice (NS) and experienced (ES) surgeons using an instrumented laparoscopic grasper and to use this data for evaluating the skill level. METHODS: Ten surgeons (five-NS, five-ES) performed a cholecystectomy and Nissen fundoplication in a porcine model. An instrumented laparoscopic grasper with interchangeable standard surgical tips equipped with a three-axis F/T sensor located at the proximal end of the grasper tube was used to measure the F/T at the hand/tool interface. In addition, one axis force sensor located at the grasper's handle was used to measure the grasping force. F/T data synchronized with visual view of the tool operative maneuvers were collected simultaneously via a novel graphic user interface incorporated picture-in-picture video technology. Subsequent frame-by-frame video analysis of the operation allowed a definition of states associated with different tool/tissue interactions within each step of the operation. F/T measured within each state were further analyzed using vector quantization (VQ). The VQ analysis defines characteristic sets of F/T in the database that were defined as F/T signature. RESULTS: The magnitude of F/T applied by NS and ES were significantly different (p < 0.05) and varied based on the task being performed. Higher F/T magnitudes were applied by NS than by ES when performing tissue manipulation, whereas lower F/T magnitudes were applied by NS than by ES during tissue dissection. Furthermore, the time to complete the surgical procedure was longer for NS by a factor of 1.5-4.8 when compared to the time for ES. State analysis suggests that most of this time is consumed in an [idle] state, in which movements of the surgeon make no tissue contact. CONCLUSIONS: Preliminary data suggest that F/T magnitudes associated with the tool/tissue interactions provide an objective means of distinguishing novices from skilled surgeons. Clinical F/T analysis using the proposed technology and methodology may be helpful in training, developing surgical simulators, and measuring technical proficiency during laparoscopic surgery.

Cholecystectomy, Laparoscopic↗