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Standardized acquisition of bedside data: the IEEE P1073 medical information bus.

The absence of standards for medical device communications has stymied the acceptance and success of automated clinical data management systems. Even devices with simple RS-232 data output ports require special interfacing hardware and software. Due to the number and variety of medical devices available, each with their own peculiar data output configuration, it has been impractical to interface with most of them. Limited by manual data entry, most computerized patient data management systems have failed to deliver the productivity gains their users expected. The forthcoming IEEE P1073 Medical Information Bus (MIB) Standard promises to correct this situation with a single powerful bedside device interface method. The MIB will provide specifications for all hardware and software necessary for medical data communications. The MIB handles the need for automatic recognition of new devices placed at a bedside, automatic reconfiguration of the network, binding of a device to a particular patient's bedside and many other issues unique to the medical data communications environment. The MIB is expected to undergo formal IEEE balloting in 1990 and promises to open a new era in data management for clinical patient care.

Computer Systems↗

A simple format for exchange of digitized polygraphic recordings.

A simple digital format supporting the technical aspects of exchange and storage of polygraphic signals has been specified. Implementation of the format is simple and independent of hard- or software environments. It allows for any local montages, transducers, prefiltering, sampling frequencies, etc. At present, 7 laboratories in various countries have used the format for exchanging sleep-wake recordings. These exchanges have made it possible to create a common database of sleep records, to compare the analysis algorithms local to the various laboratories to each other by applying these algorithms to identical signals, and to set up a computer-aided interlaboratory evaluation of manual and automatic analysis methods.

Algorithms↗

Evaluation of the SIMI system, an experimental computerised network for the surveillance of communicable diseases in Italy.

In Italy, the current communicable disease notification system is organised as follows: in each region, Local Health Units (LHU) fill in and forward case report forms (CRF) to the Regional Health Authority, which send aggregated and individual notifications to several central-level institutions. In most regions, all data are recorded manually on hardcopy. Although most relevant data from CRFs are eventually entered into a computerised database at the National Institute of Statistics (ISTAT), the national database is only available 3-4 years later and no data-quality control is performed at that time. To improve the quality and timeliness of notification, in 1994, the Istituto Superiore di Sanità (the National Institute of Health) began to develop an experimental computerised surveillance network for communicable diseases (referred to as 'SIMI'). Specifically, a software was created and distributed to the LHUs and the Regional Health Authorities; staff training was performed; and feedback and analyses of collected data was promoted. SIMI was evaluated in the 13 regions that were participating in 1997 (out of a total of 20 regions in Italy), using criteria commonly used for surveillance systems (i.e., completeness and coherence of data, case definitions, costs, timeliness, and feedback). SIMI was implemented at a limited cost and the data collected were observed to have had a high degree of completeness and internal consistency. The SIMI system has since been adopted for the routine notification of communicable diseases in nearly all regions. Similar evaluations will be necessary for assessing the performance of the various notification systems used across Europe and to include them in a European network.

Communicable Disease Control↗

Educating nursing assistants to communicate more effectively with nursing home residents with dementia.

This article describes the development and evaluation of a Nursing Assistant Communication Skills Program (NACSP). NACSP was designed to help nursing assistants (NAs) interact more effectively with nursing home residents with moderate and severe dementia. In two skilled-care nursing homes, NAs in four units were randomly assigned by unit to NACSP or to a wait-list control condition (UC) and were assessed at baseline, 3 months, and 6 months. NACSP resulted in improvement in the well-being of nursing home residents being cared for by NAs who had received the NACSP training. It was also found that NACSP resulted in greater knowledge of caregiving responses and reduced turnover rates among NAs, but the program had no impact on their knowledge of dementia. To disseminate the NACSP program, a leader manual, an accompanying training videotape, and a workbook for participants were developed.

Adult↗

Three student manuals for obstetric and gynecologic outpatient care.

We have written three pocket manuals to facilitate the interaction between obstetric and gynecology patients and medical students, junior residents, and advanced practice nurses in an ambulatory care setting. The purposes of the manuals include the organization of the content of outpatient care into a consistent framework for interaction with the patient at each outpatient visit and the provision of a practical memory jogger to facilitate effective clinician-patient communication. Each visit contains specific and suggested content under the same five categories: questions to be asked of the patient, focused aspects of the physical examination, laboratory tests to order, topics for purposeful discussion, and sentences to close the visit. These learning tools were designed to be integrated by local faculty into the department's formal curriculum. They are intended to support training in ambulatory care. They now need to be evaluated prospectively at individual sites.

Ambulatory Care↗

Mechanical force, manually assisted short lever chiropractic adjustment.

OBJECTIVES: Chiropractic mechanical force, manually assisted short lever adjusting is a spinoff of the specific toggle recoil adjusting techniques, which were based on the original chiropractic subluxation theory propounded by Daniel David Palmer in 1895. This article reviews: a) the principles of the chiropractic subluxation complex from the standpoint of its historical origin and present-day scientific status; b) the purpose and objectives of specific spinal manipulative techniques; c) the use of mechanical adjusting instruments to effect a velocity/direction controlled adjustive thrust; and d) an assessment of scientific and clinical data relating to the biomechanical and neurological aspects of mechanical force, manually assisted short lever adjusting. DATA SOURCES: Prime sources were from the National Library of Medicine's on-line Index Medicus database, the Chirolars Research Resource Retrieval database, the Chiropractic Research Abstract Collection and the Chiropractic Library Consortium's reference works. Direct search of other nonindexed chiropractic sources was limited to those available in the collection of the National Institute of Chiropractic Research. Early information never documented by publication was obtained by written personal communication. STUDY SELECTION: The principal author selected articles reporting data (as opposed to anecdotal reports) from conference proceedings and peer-reviewed journals. DATA EXTRACTION: Data quality was assessed based on experimental conditions such as sample size, study design and statistical analysis. DATA SYNTHESIS: While mechanical force, manually assisted short lever adjusting seemingly is capable of beneficially altering the cause/effect relationship of spinal subluxations, more research in the nature of controlled clinical trials is needed to ascertain its benefits in the chiropractic treatment of specific conditions. CONCLUSIONS: Basic research is needed in order to establish the scientific basis for the chiropractic subluxation syndrome regardless of the technique employed.

Biomechanical Phenomena↗

Back to the Future for Clinical Oncology.

Dear Colleague: I remember, but just barely, what it was like to practice medicine in the first half of this century. My Dad was a general practitioner in a very small farming community in central Illinois, with a hospital of six beds and a trusting clientele. His patients thought he knew how to do everything: deliver babies, set broken bones and take out an appendix. He was an advocate for his patients, not for an HMO or an insurance company. He derived great satisfaction from his practice and was comfortable in this role, up to a point, but knew that he frequently needed the help of specialists from Decatur, St. Louis, and the Mayo Clinic. As his experience and practice evolved, and as medicine itself changed, referrals became a sign of good practice and not an indication of weakness or inadequacy. Some doctors in our town continued to do more than they should have and resisted the trend, and their patients, many with blind faith in their doctor, suffered for it. Clearly, there were economic as well as emotional factors that contributed to this reluctance to ask for help. Clinical oncology is facing much the same situation today. Scientific and economic forces are revolutionizing medicine, but not always in compatible directions. Practice and research have evolved to the point where old patterns of practice are no longer optimal. Few cancer patients can be managed without the input, advice, and even direct involvement of specialists from sister disciplines. Thus, multimodality management of cancer patients is now the norm rather than the exception. At the same time, strong economic forces are dictating a movement in the opposite direction, undermining the strength of traditional academic centers and limiting choices, streamlining patient evaluation, and creating "pathways" to standardize patient management. Who should be setting the course for the cancer patient? We agree that it should not be a clerk at the other end of the phone at the HMO, a computerized practice manual, or even the gatekeeper, who watches his or her capitated bottom line with great nervousness. It should be the physician(s) best able to evaluate the alternatives and communicate these choices to the patient and family. Often it is not possible for a solo physician to make these choices in isolation, particularly when the decisions involve multiple specialties and multimodality therapies. At presentation, many primary cancers now require an integration of the opinion of more than one specialist, and increasingly this integration occurs before surgery. Breast, lung, and prostate cancer, three of our most common diseases, illustrate this point with growing clarity. While less convenient for the doctor, and perhaps less efficient than the "old style" of practice, multimodatity disease center clinics offer significant advantages both to the patient and to the research effort, and are here to stay. Certainly for the payer it is faster and cheaper to have one doctor do it all, but I doubt that the results will be as good. Obviously not all patients need this cooperative approach. It would waste good physicians' time to require that all patients be seen by a radiotherapist, surgeon, and medical oncologist or pediatric oncologist. The specific circumstances may clearly dictate a simple approach and an uncomplicated decision, particularly in dealing with metastatic solid tumors, or at the other extreme, in managing easily resectable, low-risk tumors. However, even here, optimal management of local disease or of potentially resectable metastases may require consideration of an expanded series of options. Thus, all cancer specialists need to be aware of the potential of their colleagues to contribute to disease management. ellipsisWhich brings us to the reason for this journal. The editorial board members of The Oncologist hold the belief that the various subspecialists in oncology should share the same information base and read from the same journal. We believe that cancer specialists should resist the trend to capitulate our responsibilities in disease management to payers, gatekeepers, and hospital administrators. It is up to us to defend the patient's turf and to assure that the patient has an advocate. In order to do so, we will have to be united and fully informed. In this journal, we hope to put the best and latest information on cancer management before our readership, to prepare them for the future, and to do their best as a team for every patient. To this end, we hope to challenge the reader to understand what is new and better, and to let you glimpse the future, not only in terms of research, but also in terms of new team approaches to disease management. We hope to explore how cancer medicine could be and will be practiced as we pass through the economic revolution and return to the future.

Journal Article↗

Haemophilus influenzae: the efficiency of reporting invasive disease in England and Wales.

This study compares the efficiency of a special regional survey with routine laboratory reporting to measure the incidence of invasive disease caused by Haemophilus influenzae before routine immunisation against type b strains was introduced. Incomplete reporting does not prevent the monitoring of trends, but it becomes important if the level of underreporting changes with time. This study illustrates the importance of assessing the quality of surveillance data before using them to inform policy or evaluate intervention. Underreporting to the regional survey was found to be 17% and underreporting to the Public Health Laboratory Service (PHLS) Communicable Disease Surveillance Centre (CDSC) was 24%. In response to this study a system has been set up to send reference laboratories a weekly list of reports to CDSC. Manual cross checking helps to complete the ascertainment of cases. All isolates of H. influenzae from cases of invasive disease should be sent to the reference laboratories for serotyping as well as being reported to CDSC.

Bacterial Capsules↗

"Arlene"--the electronic Roto-Extractor assistant.

Using an analysis of the surgical assistant's manual aspiration functions as a guide, an electronic Roto-Extractor surgical assistant has been developed that is entirely subservient to the surgeon's foot control. The electronic assistant communicates audibly to the surgeon regarding the interplay of actual fluid flow and the accumulation or build up of vacuum in the aspiration lines of infusion-aspiration-cutting instruments.

Automation↗

Avoiding versus seeking: the relationship of information seeking to avoidance, blunting, coping, dissonance, and related concepts.

QUESTION: How have theorists and empirical researchers treated the human tendency to avoid discomforting information? DATA SOURCES: A historical review (1890-2004) of theory literature in communication and information studies, coupled with searches of recent studies on uptake of genetic testing and on coping strategies of cancer patients, was performed. STUDY SELECTION: The authors' review of the recent literature included searches of the MEDLINE, PsychInfo, and CINAHL databases between 1992 and summer of 2004 and selective, manual searches of earlier literature. Search strategies included the following subject headings and key words: MeSH headings: Genetic Screening/psychology, Decision Making, Neoplasms/diagnosis/genetics/psychology; CINAHL headings: Genetic Screening, Genetic Counseling, Anxiety, Decision Making, Decision Making/Patient; additional key words: avoidance, worry, monitoring, blunting, cancer. The "Related Articles" function in MEDLINE was used to perform additional "citation pearl" searching. MAIN RESULTS: The assumption that individuals actively seek information underlies much of psychological theory and communication practice, as well as most models of the information-seeking process. However, much research has also noted that sometimes people avoid information, if paying attention to it will cause mental discomfort or dissonance. Cancer information in general and genetic screening for cancer in particular are discussed as examples to illustrate this pattern. CONCLUSION: That some patients avoid knowledge of imminent disease makes avoidance behavior an important area for social and psychological research, particularly with regard to genetic testing.

Adaptation, Psychological↗

Risk of cellular phone interference with an implantable loop recorder.

This study examined the risk of cellular phone ringing interference with implantable loop recorders (ILR). The technical manual of ILR warns of potential interference by cellular phone in close proximity to the implanted device, corrupting the data stored in memory or causing inappropriate device operation. The ringing phase of a digital Global System for Mobile Communication (GSM) or Personal Communication Services (PCS) cellular phone includes a brief burst of peak emitted power. To obviate the risk of dysfunction in recipients of implanted ILRs, the testing was performed with externally applied devices. The ILR was positioned in the left parasternal region and the telemetry wand removed after regular programming. Digital cellular telephones were placed over the device at a 1-cm distance and calls were placed. The phone systems tested were single- or dual-band receivers. The GSM used a maximal power output of 2 W, operating on a 900 MHz carrier frequency, and the PCS a maximal output of 1 W, operating on a 1800 MHz carrier frequency. The device activator was used to store the episodes encompassing the tests. Sixty nine tests were performed in 45 patients. In 61 tests, high-frequency polymorphic artifacts were visible on manually activated recordings, beginning a few seconds before the first audible ringing tone and persisting throughout the ringing phase. Cellular phone ringing in close proximity to an externally applied ILR caused bursts of high-frequency signals during electrocardiogram monitoring, without causing permanent device dysfunction or reprogramming. Cellular telephones are a potential source of electrocardiographic artifacts on ILR recordings.

Cell Phone↗

Three-dimensional display of cardiac structures using reconstructed magnetic resonance imaging.

It is sometimes difficult to understand the three-dimensional (3D) relationship of cardiac and mediastinal structures despite advances in magnetic resonance (MR) imaging techniques. We present a low-cost system for 3D reconstruction of the major mediastinal structures by processing the MR imaging data on a NeXT workstation. MR images of multisection, multiphase, spin-echo techniques stored in a picture archiving and communication system (PACS) data base were used for the reconstruction. The computer program obtained the contours of the multiple components of the mediastinal structures by the combination of automatic and manual procedure. The bundled software of a 3D kit was used for surface rendering of hidden surface removal, shading of the visible parts of the surfaces, perspective transformation, and motion parallax by rotation of the surfaces. 3D reconstruction was performed in 15 patients with cardiac diseases, and the 3D-reconstructed images were compared with the plain chest x rays of the patients. The 3D presentation clearly showed the complex anatomy of cardiovascular diseases and helped elucidate the misconceptions in the interpretation of the plain chest x rays. Our 3D images are used for education and should be viewed by medical students and beginners in radiology at an individual pace with plain chest radiographs, MR images, and legends. Although applied to the heart and the great vessels in this report, this system is also applicable to other structures.

Computer Graphics↗

Neural correlates of verbal and nonverbal working memory deficits in individuals with schizophrenia and their high-risk siblings.

Impaired working memory and functional brain activation deficits within prefrontal cortex (PFC) may be associated with vulnerability to schizophrenia. This study compared working memory and PFC activation in individuals with schizophrenia, their unaffected siblings and healthy comparison participants. We administered a "2back" version of the "nback" task. Functional MRI (fMRI) was used to measure brain activity. Nineteen individuals with DSM-IV schizophrenia, 18 of their siblings, and 72 healthy comparison participants underwent fMRI scans while performing word and face "nback" working memory tasks. Repeated trials (items whose prior presentation was not in the correct nback position) allowed us to assess group differences in the ability to code the temporal order of items. Individuals with schizophrenia and their siblings performed worse than controls on repeated lure trials, suggesting an association between schizophrenia and impairments in the coding of temporal order within working memory. Both individuals with schizophrenia and their siblings also demonstrated abnormal brain activation in PFC, such that both groups had hyperactivation in response to word stimuli and hypoactivation in response to face stimuli. These results provide further evidence that individuals with schizophrenia and their siblings are impaired in their ability to encode the temporal order of items within working memory and that disturbances in working memory and PFC activation may be genetic markers of the vulnerability to schizophrenia.

Adult↗

The Mpondombili Project: preventing HIV/AIDS and unintended pregnancy among rural South African school-going adolescents.

Unintended pregnancy, HIV and other sexually transmitted infections are major threats to the health of South African youth. Gendered social norms make it difficult for young women to negotiate safer sex, and sexual coercion and violence are prevalent. Sexual activity among adolescents is influenced strongly by conservative social norms, which favour abstinence. In reality, most young people are sexually active by the end of the teen years. Girls' decision to have sex is often a passive one, influenced by partners. The Mpondombili Project is a school-based intervention in rural KwaZulu-Natal that aims to promote delay in the onset of sexual activity and condom use as complementary strategies for both sexually experienced and inexperienced youth. Interactive training was carried out with peer educators, teachers and nurses over a 15-month period, and a manual developed. The intervention was implemented in late 2003 with 670 adolescents in two schools. Issues covered included HIV/STI transmission, risk behaviours, HIV testing, pregnancy and contraception, gender inequality, sexual communication and negotiation, managing abusive situations, fear of AIDS, stigma and discrimination and sexual rights. The diversity of young people's relationships and vulnerability to sexual risk call for the promotion of both risk avoidance (delay in sexual initiation) and risk reduction (condom use) together, regardless of ideology, especially where HIV is well-established, to protect their health.

Adolescent↗

Cognitive diversity and team performance in a complex multiple task environment.

This article examines the multiple effects of cognitive diversity in teams operating complex human-machine-systems. The study employed a PC-based multiple-task environment, called the Cabin Air Management System, which models a process control task in the operational context of a spacecraft's life support system. Two types of cognitive diversity were examined: system understanding and team specialization. System understanding referred to the depth of understanding team members were given during training (low-level procedure-oriented vs. high level knowledge-oriented training). Team specialization referred to the degree to which knowledge about system fault scenarios was distributed between team members (specialized vs. non-specialized). A total of 72 participants took part in the study. After having received 4.5 h of training on an individual basis, participants completed a 1-h experimental session, in which they worked in two-person teams on a series of fault scenarios of varying difficulty. Measures were taken of primary and secondary task performance, system intervention and information sampling strategies, system knowledge, subjective operator state, communication patterns and conflict. The results provided evidence for the benefits of cognitive diversity with regard to system understanding. This manifested itself in better primary task performance and more efficient manual system control. No advantages were found for cognitive diversity with regard to specialization. There was no effect of cognitive diversity on intra-team conflict, with conflict levels generally being very low. The article concludes with a discussion of the implications of the findings for the engineering of cognitive diversity in teams operating complex human-machine-systems.

Adult↗

Talking to the board. By opening communication lines with board members, CEOs promote continuity and effective handling of key issues.

When asked how he has been able to effectively stay in one job for so long, the man who has been at the head of one of the nation's largest banking organizations for 16 years, Richard Cooley, chairman, Wells-Fargo Bank, said that he "learned very early that board relations was the most important key to his continuity." Cooley said his strategy over the years has been to meet for dinner about once a year with each member of this board to allow the board member to get to know him, to personally hear the issues that the board member considers most important, and to solicit input on proposed management plans.

Communication↗

Life's a switch. Experiences in NSF undergraduate design projects.

During the summer of 2002 Stephanie Popp and Jennifer Barnes developed a manual, "Life's a Switch," through a project funded by the National Science Foundation. This manual teaches people how to build their own cost effective assistive switches. Assistive switches are a form of assistive technology which includes any device that enhances a person's quality of life by improving the individual's mobility, ability to perform daily activities, enhancing communication, or allowing participation in education, vocational activities and recreation. One main goal of assistive technology is to provide opportunities for children with disabilities to explore, play, learn, and communicate with others. Switches are essential tools used to provide these opportunities. When a child with developmental disabilities understands the connection between the activation of a switch and the resulting action it triggers, the knowledge of cause and effect is gained. Therefore, the basis for all future learning is established [1]. One of the current problems facing assistive switch users is the cost of available items. This project provides more affordable solutions for switch users by teaching the families and educators of switch users how to make their own switches and adaptors in the "Life's a Switch" manual. For example, some assistive technology vendors sell large button switches from $25.00 to $45.00, tread switches for $40.00, and pillow switches for $35.00 [2]. Amazingly, all parts and tools used to make these assistive switches can be bought and made into personally designed assistive devices averaging a cost of around $10.00 [3]. A workshop to teach this manual was also developed. This workshop will spread awareness of the more affordable options this project sets forth. In September of 2002, the first workshop was held in a laboratory classroom at the University of Wyoming's College of Engineering. Each attendant was provided with a kit that included all essential tools and components needed to make an assistive switch. Workshops scheduled into 2003 will provide educational opportunities for participants as well as opportunities for improvement of the manual.

Biomedical Engineering↗

Characteristics of preschool children diagnosed as having an atypical pervasive developmental disorder.

Pediatricians and child psychiatrists encounter preschool children who are not autistic, but who have early deficits in both interpersonal and communication skills. Confusion exists over their diagnosis. Eighteen atypical children currently diagnosed as having an atypical pervasive developmental disorder are described. Areas discussed are social relatedness, speech and language, mental status, cognition, behavior, perception, social background, and medical/neurological status. These children constitute a distinct and frequently seen group within the spectrum of pervasive developmental disorders. Their characteristics are not currently captured within a diagnostic category in the Diagnostic and Statistical Manual, Third Edition (DSM-III), of the American Psychiatric Association. A revision of DSM-III, DSM-III-R, is currently being prepared. These children may not be captured within a diagnostic category in DSM-III-R. The distinguishing characteristics are onset before the age of three, language delay with disordered communication, social relationships characterized by variable relatedness, ritualistic or manneristic behaviors, the likelihood of hyperactivity and/or a short attention span, affective disturbances, excessive anxiety, and a thinking disorder or perseverative behaviors.

Affect↗