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PubMed2002

Avoiding misperceptions: classifying rehabilitation projects using letters rather than numbers.

A classification system proposed earlier of the many different known rehabilitation approaches and activities used a quantitative scoring system, thus giving the impression that projects with a higher score were better, more correct or more important than projects with a lower score. We therefore propose an alternative classification based on letters, so that a given combination of letters characterizes a particular type of project. The letters are derived from four dimensions: desired outcome of the intervention, participation of the clients in the rehabilitation process, the target group served and the services offered. Some examples are presented. The classification serves to analyse rehabilitation projects, to define policy and as a starting point for evaluation.

Adult↗

PubMed2004

[Current technologies for enhancing efficiency of laboratory techniques].

The current approaches to promoting the efficiency of applying the laboratory tools were comprehensively analyzed. It was for the first time that the above issue was considered from the standpoint of a scientifically substantiated management scheme applicable to the laboratory examination volume and within the framework of the modern conclusive medicine. The problem can be solved through starting, in each clinic, an independent research project and through patient management (critical course--technological card) with respect to available technological and personnel resources. Finally, the basic principles are outlined that are needed for designing the technological cards; the related role of experts in clinical laboratory diagnostics is demonstrated.

Clinical Laboratory Techniques↗

PubMed2004

Implementing the HL7v3 standard in Croatian primary healthcare domain.

The mission of HL7 Inc. is to provide standards for the exchange, management and integration of data that supports clinical patient care and the management, delivery and evaluation of healthcare services. The scope of this work includes the specifications of flexible, cost-effective approaches, standards, guidelines, methodologies, and related services for interoperability between healthcare information systems. In the field of medical information technologies, HL7 provides the world's most advanced information standards. Versions 1 and 2 of the HL7 standard have on the one hand solved many issues, but on the other demonstrated the size and complexity of the health information sharing problem. As the solution, a complete new methodology has been adopted, which is being encompassed in version 3 recommendations. This approach standardizes the Reference Information Model (RIM), which is the source of all domain models and message structures. Message design is now defined in detail, enabling interoperability between loosely-coupled systems that are designed by different vendors and deployed in various environments. At the start of the Primary Healthcare Information System project, we have decided to go directly to HL7v3. Implementing the HL7v3 standard in healthcare applications represents a challenging task. By using standardized refinement and localization methods we were able to define information models for Croatian primary healthcare domain. The scope of our work includes clinical, financial and administrative data management, where in some cases we were compelled to introduce new HL7v3-compliant models. All of the HL7v3 transactions are digitally signed, using the W3C XML Digital Signature standard.

Croatia↗

PubMed2005

[HL7 standard--features, principles, and methodology].

The mission of HL7 Inc. non-profit organization is to provide standards for the exchange, management and integration of data that support clinical patient care, and the management, delivery and evaluation of healthcare services. As the standards developed by HL7 Inc. represent the world's most influential standardization efforts in the field of medical informatics, the HL7 family of standards has been recognized by the technical and scientific community as the foundation for the next generation healthcare information systems. Versions 1 and 2 of HL7 standard have solved many issues, but also demonstrated the size and complexity of health information sharing problem. As the solution complete new methodology has been adopted that is encompassed in the HL7 Version 3 recommendations. This approach standardizes Reference Information Model (RIM), which is the source of all derived domain models and message structures. Message design is now defined in detail, enabling interoperability between loosely coupled systems that are.designed by different vendors and deployed in various environments. At the start of the Primary Healthcare Information System project in the Republic of Croatia in 2002, the decision was to go directly to Version 3. The target scope of work includes clinical, financial and administrative data management in the domain of healthcare processes. By using HL7v3 standardized methodology we were able to completely map the Croatian primary healthcare domain to HL7v3 artefacts. Further refinement processes that are planned for the future will provide semantic interoperability and detailed description of all elements in HL7 messages. Our HL7 Business Component is in constant process of studying different legacy applications, making solid foundation for their integration to HL7-enabled communication environment.

Ambulatory Care Information Systems↗

PubMed1990

Computerizing medical records: software criteria for systems to document patient encounters.

It is difficult to design and build computer systems to document medical care, especially if the entries are to be made by health care professionals. Not all software approaches are equally well suited to the task. Twenty-one specific software characteristics were identified that promote efficient development and support clinical needs. Using a software tool that satisfied these characteristics, we developed a computerized medical chart system that physicians can use to write notes and document patient encounters. The success of this system was due to a good fit between the basic capabilities of the software approach and the requirements of the project. These criteria can serve as the starting point for evaluating or developing other software applications that depend on physician input of clinical information.

Documentation↗

PubMed1996

Patient care conference: a coordinated, collaborative effort.

The flow chart, guidelines, and document describe the mechanism for patient care conferences. Because the need, process, and documentation of patient care conferences have been clarified, care conferences are now more consistent, efficient, and effective. Documentation streamlined the process of setting up care conferences by recording the following information: who was notified, who would attend, specific issues to be discussed, conference scheduling summary of plans and decisions made. Task force satisfaction was high because of a short timeline, clear problem definition, clear goals, team sponsorship, and a good end product. Use of continuous quality improvement techniques added to the success of this project, because there was a methodology for starting with a variable, unclear process and ending with a creative, efficient process. All members of the healthcare team and patients and families were satisfied, because the patient care conference was available to discuss specific issues and reach consensus on decisions about the patient's treatment plan at critical points during the patient's hospital course.

Critical Care↗

PubMed1976

Sodium nitroprusside: pharmacology, toxicology and therapeutics.

Sodium nitroprusside is a potent, effective, and readily reversible direct vasodilating agent. It is broken down by hemoglobin into cyanide, which is in part detoxified by liver and kidney to thiocyanate. Some cyanide, especially in nitroprusside- "resistant" individuals who need large amounts of the drug, appears to remain free to cause cyanide poisoning. Patients requiring inordinate amounts probably should not continue to receive the drug, although maximum dosage limits for long-term therapy are not established. Blood thiocyanate levels do not indicate the extent to which free cyanide is limiting oxygen utilization in essential tissue, nor do blood cyanide levels. Metabolic acidosis, elevated lactate levels, elevated lactate/pyruvate ratios, and elevated mixed venous blood oxygen content are at present the best indications of the presence of cyanide poisoning during nitroprusside administration. Nitroprusside appears useful for induction of hypotension during surgery, and for treatment of hypertensive emergencies from all causes, although continuance for more than a few days is probably unwise. The reductions of cardiac afterload and ventricular filling pressure by nitroprusside appear useful in treatment of severe myocardial failure or infarction, but studies of myocardial cyanide toxicity are needed before complete acceptance of this therapy is warranted. Initial dose rates between 0.5 and 1.5 mug/kg/min are recommended only as starting points for very careful titration. Total projected intra-operative dosage should be calculated as quickly as possible and should not exceed 3-3.5 mg/kg. It is hoped that future studies will reveal the maximum dose of nitroprusside that can safely be metabolized in a 24-hour period, and may indicate that cofactors of rhodanase such as thiosulfate, or cobalamins such as hydroxocobalamin, can be administered with nitroprusside to prevent cyanide poisoning.

Anesthesia, General↗

PubMed1994

SMART START: an option for adolescents to delay the pelvic examination and blood work in family planning clinics.

PURPOSE: The goal was to encourage earlier use of family planning services and effective birth control for teens. METHOD: In three federally-funded family planning clinics, the SMART START service model was offered to non-pregnant teens under 18. Teens making their first family planning visit to the clinics for family planning services had the option to delay the requisite pelvic examination and blood work following a careful medical and social history for up to 6 months while obtaining oral contraceptives and/or other non-prescriptive contraceptives. Each teen also received individualized counseling and follow-up telephone contacts. Survey and medical chart data were collected during the project period to evaluate the effects of SMART START on 151 teens. RESULTS: Of the 151 teens, 26% delayed the pelvic examination and 40% delayed the blood work. The delay of medical services did not result in negative health outcomes. Teens who elected to delay the pelvic examination returned to the clinic as frequently for revisits, they reported using condoms more consistently, they had fewer pregnancies and had similar STD rates compared with those not delaying. SMART START also found that ethnic factors correlated with deferring the blood work. CONCLUSIONS: SMART START offered teens options over how and when they receive reproductive health care services without withholding effective contraceptive methods. No serious complications of STDs resulted from the delay procedures. Expansion of the SMART START model to include both teen and adult populations is encouraged.

Adolescent↗

PubMed2006

Photodissociation of nitrous oxide starting from excited bending levels.

The photodissociation dynamics of N2O in the wavelength region of 203-205 nm was studied by velocity map ion imaging. A speed resolution of 0.8% was obtained using standard projection imaging and subpixel centroiding calculations. To investigate N2O dissociation starting from the excited bending levels in the ground electronic state, a supersonic molecular beam and an effusive beam were used. The photoabsorption transition probability from the first excited bending level in the wavelength region of 203-205 nm was estimated to be seven times greater than that from the ground vibrational level.

Journal Article↗

PubMed2006

Projections of global mortality and burden of disease from 2002 to 2030.

BACKGROUND: Global and regional projections of mortality and burden of disease by cause for the years 2000, 2010, and 2030 were published by Murray and Lopez in 1996 as part of the Global Burden of Disease project. These projections, which are based on 1990 data, continue to be widely quoted, although they are substantially outdated; in particular, they substantially underestimated the spread of HIV/AIDS. To address the widespread demand for information on likely future trends in global health, and thereby to support international health policy and priority setting, we have prepared new projections of mortality and burden of disease to 2030 starting from World Health Organization estimates of mortality and burden of disease for 2002. This paper describes the methods, assumptions, input data, and results. METHODS AND FINDINGS: Relatively simple models were used to project future health trends under three scenarios-baseline, optimistic, and pessimistic-based largely on projections of economic and social development, and using the historically observed relationships of these with cause-specific mortality rates. Data inputs have been updated to take account of the greater availability of death registration data and the latest available projections for HIV/AIDS, income, human capital, tobacco smoking, body mass index, and other inputs. In all three scenarios there is a dramatic shift in the distribution of deaths from younger to older ages and from communicable, maternal, perinatal, and nutritional causes to noncommunicable disease causes. The risk of death for children younger than 5 y is projected to fall by nearly 50% in the baseline scenario between 2002 and 2030. The proportion of deaths due to noncommunicable disease is projected to rise from 59% in 2002 to 69% in 2030. Global HIV/AIDS deaths are projected to rise from 2.8 million in 2002 to 6.5 million in 2030 under the baseline scenario, which assumes coverage with antiretroviral drugs reaches 80% by 2012. Under the optimistic scenario, which also assumes increased prevention activity, HIV/AIDS deaths are projected to drop to 3.7 million in 2030. Total tobacco-attributable deaths are projected to rise from 5.4 million in 2005 to 6.4 million in 2015 and 8.3 million in 2030 under our baseline scenario. Tobacco is projected to kill 50% more people in 2015 than HIV/AIDS, and to be responsible for 10% of all deaths globally. The three leading causes of burden of disease in 2030 are projected to include HIV/AIDS, unipolar depressive disorders, and ischaemic heart disease in the baseline and pessimistic scenarios. Road traffic accidents are the fourth leading cause in the baseline scenario, and the third leading cause ahead of ischaemic heart disease in the optimistic scenario. Under the baseline scenario, HIV/AIDS becomes the leading cause of burden of disease in middle- and low-income countries by 2015. CONCLUSIONS: These projections represent a set of three visions of the future for population health, based on certain explicit assumptions. Despite the wide uncertainty ranges around future projections, they enable us to appreciate better the implications for health and health policy of currently observed trends, and the likely impact of fairly certain future trends, such as the ageing of the population, the continued spread of HIV/AIDS in many regions, and the continuation of the epidemiological transition in developing countries. The results depend strongly on the assumption that future mortality trends in poor countries will have a relationship to economic and social development similar to those that have occurred in the higher-income countries.

Acquired Immunodeficiency Syndrome↗

PubMed2005

[The S.I.G.N.A.L.-Intervention Project to combat violence against women].

Domestic violence has profound effects on the health of women. According to the World Health Organization, violence is a significant risk factor for morbidity and mortality in women. If violence is not taken into account as a cause of health problems, there is a high risk of inappropriate health care. More attention to the issue of domestic violence in medical history, diagnosis and therapy is the objective of the "S.I.G.N.A.L. Intervention Project to Combat Violence Against Women". The "S.I.G.N.A.L. Project" is the first intervention project against violence in a medical setting in Germany. It was started in 1999 in the emergency room of Benjamin Franklin University Hospital (Charite Campus Benjamin Franklin). The goal of the project is to initiate prevention and intervention for violence against women by providing the abused women with appropriate support and treatment. The program is based on the intervention objectives: ask about abuse, assess for danger, inform and refer victims to counselling programs and women's shelters, and document injuries and health problems for use in legal proceedings.

Female↗

PubMed1998

Conduct problems and level of social competence in Head Start children: prevalence, pervasiveness, and associated risk factors.

The purpose of the current project was to determine the prevalence of conduct problems, low social competence, and associated risk factors in a sample of 4-year-old low-income children (N = 426) from 64 Head Start classrooms in the Seattle area. Conduct problems and social competence were assessed based on a combination of teacher reports, parent reports, and independent observations of children interacting with peers in the classroom and with parents at home. We examined the relative contribution of a variety of risk factors, including maternal history and socioeconomic background, current levels of stress and social support, mothers' emotional state, and parenting competence in relation to "pervasive" (i.e., at home and school) and "nonpervasive" conduct problems and low social competence. Findings indicated similar risk factors for conduct problems and for low social competence, with an ordered increase in the number of risk factors from normal to "nonpervasive" to "pervasive" groups. Harshness of parenting style (i.e., slapping, hitting, yelling) significantly distinguished between the three groups for low social competence and conduct problems. Positive affect, praise, and physical warmth from mothers were positively related to social competence but unrelated to conduct problems.

Child Behavior Disorders↗

PubMed2004

Recognition and separation of single particles with size variation by statistical analysis of their images.

Macromolecules may occupy conformations with structural differences that cannot be resolved biochemically. The separation of mixed molecular populations is a pressing problem in single-particle analysis. Until recently, the task of distinguishing small structural variations was intractable, but developments in cryo-electron microscopy hardware and software now make it possible to address this problem. We have developed a general strategy for recognizing and separating structures of variable size from cryo-electron micrographs of single particles. The method uses a combination of statistical analysis and projection matching to multiple models. Identification of size variations by multivariate statistical analysis was used to do an initial separation of the data and generate starting models by angular reconstitution. Refinement was performed using alternate projection matching to models and angular reconstitution of the separated subsets. The approach has been successful at intermediate resolution, taking it within range of resolving secondary structure elements of proteins. Analysis of simulated and real data sets is used to illustrate the problems encountered and possible solutions. The strategy developed was used to resolve the structures of two forms of a small heat shock protein (Hsp26) that vary slightly in diameter and subunit packing.

Computer Simulation↗

PubMed1983

Biological control of insect pests.

Isozyme techniques have proven particularly useful in the past in the field of biological insect control. In this brief review I have tried to give a small selection of the varied approaches that have been used. In the future, isozyme analysis will undoubtedly play a major role. But genetic analyses, as exemplified by the use of isozymes, form but a small part of the knowledge we must have if biological control programs are to be successful. In a pest management program where one is using both chemical and biological methods it is necessary to know a great deal about the biology of the pests, their parasites, predators, and host plants or animals, together with a knowledge of the general ecology of the area where the problem exists. Too often, major control programs have been started with pitifully inadequate basic knowledge of the insect pest concerned, dooming such projects to a series of frantic and generally makeshift attempts to redeem these inadequacies. We are starting to see a much greater emphasis on interrelationships between scientific disciplines, more basic research being conducted, and a resurgence of interaction between those people who are in the applied field and those in the basic sciences. This dialog must be continued. In closing, I want to emphasize again that in pest control we are involved in the management of a coexistence with insects and I think it appropriate to end with the thoughts of W.J. Holland [1949]: when all cities shall have been long dead and crumbled into dust, and all life shall be on the very last verge of extinction on this globe; then on a bit of lichen, growing on the bald rocks beside the eternal snows of Panama, shall be seated a tiny insect, preening its antenna in the glow of the worn-out sun, representing the sole survival of animal life on this our earth--a melancholy 'bug'.

Alleles↗

PubMed1991

Syringe exchange for prevention of HIV infection in Sweden: practical experiences and community reactions.

An HIV prevention project, including syringe exchange, among intravenous drug users was started in Lund, Sweden, in November 1986. The program has been effective in reaching local addicts. Practical problems have been few. The educational and epidemiological effects on HIV infection are promising, and local drug treatment programs have benefited from the project in that previously untreated users have been attracted to treatment. The syringe exchange has been much debated. In general, the medical society, local authorities, and mass media have been supportive, while many politicians and social workers, especially in other parts of the country, have been strongly opposed. At present, the existence of the project is threatened.

HIV Infections↗

PubMed2001

The use of highly active antiretroviral therapy (HAART) in patients with advanced HIV infection: impact on medical, palliative care, and quality of life outcomes.

The effect of highly active antiretroviral therapy (HAART) in the treatment of HIV infection is usually measured by survival, CD4 lymphocyte counts, HIV-1 RNA viral load testing, and the occurrence of opportunistic infections. This pilot study sought to measure the impact of HAART treatments on a wide range of clinical outcomes and psychological variables in a sample of patients with advanced HIV infection. Seventy patients with advanced AIDS who were protease inhibitor naïve were started on HAART regimens. Patients were admitted to an AIDS inpatient unit of a long-term care facility that provides treatment and palliative care. All patients were diagnosed with AIDS, had CD4 cell counts below 300/cc(3), and had a projected survival of greater than one month. Patients were started on triple-drug HAART regimens with daily medical supervision and observation. In addition to standard clinical and laboratory markers, a series of observer-rated and self-report instruments were used to measure various physical and psychological factors (e.g., pain and symptom distress, psychological well-being, depression). Data were collected at baseline and after 1 and 3 months of HAART therapy. As expected, the CD4 count increased and viral load levels decreased significantly over the 3-month study period. In addition, patients improved significantly in body weight, and serum albumin and ferritin levels. The only psychosocial measure that improved significantly with treatment was depression. Ratings of pain intensity, physical and psychological symptom distress, and overall quality of life did not change. Of the 70 patients studied, 84.3% were still alive after the 3-month study period. Of these, 6 (8.6%) were discharged to community. However, 17 surviving patients (24.3%) had HAART regimens discontinued due to drug intolerance and 11 patients (15.7%) expired during the study period. While these data are preliminary, HAART regimens appear to have positive effects on CD4 count, HIV viral load, and several other measures of physical well-being in patients with advanced AIDS. Despite these improvements, the benefits of treatment on pain and symptom distress, and psychological well-being were less clear. In addition, treatment failure (mortality and intolerance) were not uncommon in this sample (40%). Further research is clearly necessary to better understand the benefits of HAART therapy in patients with advanced HIV infection.

Adult↗

PubMed2004

First results of Liguria-Trento transplant network project: a model for a macroregional network and real-time registry in Italy.

In Italy, health-care telematic is funded and supported at the level of national government or regional institutions. In 1999, the Italian Ministry of Health started to fund the Liguria-Trento Transplant Network (LTTN) project, a health research project with the aim to build an informative system for donor management and transplantation activity in a macroregional area. At the time of LTTN project proposal, no published Transplant Network Informative System fulfilled Italian rules on telematic management of electronic documentation concerning transplantation activity. Partnership of LTTN project were two Regional Transplant Coordinating Centres, Nord Italia Transplant Interregional Coordinating Centre and the Italian Institute of Health/National Transplant Coordinating Centre. Project Total Quality Management methods were adopted. Technological and case analysis followed ANSI-HL7, CEN-TC251, and Object-Oriented Software Engineering standards. A low-tech prototype powered by a web access relational database is running on a transplant network including web-based clients located in 17 intensive care units, in Nord Italia Transplant Interregional Coordinating Centre, and at the Italian Institute of Health/National Transplant Coordinating Centre. LTTN registry includes pretransplant, surgical, and posttransplant phases regarding liver, kidney, pancreas, and kidney-pancreas transplantation in adult and pediatric recipients. Clinical specifications were prioritized in agreement with the RAND/UCLA appropriateness method. Further implementation will include formal rules for data access and output release, fault tolerance, and a continuous registry evolution plan.

Humans↗

PubMed2005

Implementation and evaluation of a central coordination office for clinical trials in a tertiary care hospital.

BACKGROUND: Controlled clinical trials are essential tools for establishing new standards in patient care. Nevertheless, the majority of cancer patients are not treated within clinical trials. We report about a project now running for 7 years that was started in order to enhance the recruitment of patients into clinical trials, to improve trial-related quality, and to comply with the regulatory issues related to these studies. MATERIAL AND METHODS: We established a Central Coordination Office (CCO) for clinical trials, an associated internal clinical trials review board, a register of active clinical trials, and a computer-based medical information system at our department. RESULTS: Inpatient recruitment into clinical trials at our department improved over the last 7 years from 40% in 1997 to 70% in 2003. The internal review board approved 276 trial projects since its establishment. A clinical trials register is now in its 9th edition. Currently, 50 to 60 clinical trials in oncology/hematology are active while 10 to 20 new trials are being implemented per year. All clinical trials comply with the regulatory requirements, and trial documentation is provided in a timely manner. CONCLUSIONS: The establishment of a CCO for clinical trials substantially improves and maintains patient recruitment into clinical trials and improves the quality of clinical research.

Controlled Clinical Trials as Topic↗