Medical technology

Medical Technology

In General

A person may observe that health care costs increase dramatically while monetary inflation remains relatively flat, in spite of many cost-containment programs. The reasons are numerous; one of the main reasons, however, is technology. Because technology is a major factor in driving up health care costs, it is treated with some thoroughness in the following pages. Technology is viewed from three different perspectives:
Unbelievable Medical Technology
Consider the following:
1. Molecular medicine is changing the way we look at disease. Researchers are investigating how a cell receptor receives external messages and how those messages direct the activities of the cell. Molecular therapies treat dysfunctions in this flow of information. Molecular medicine will replace the scalpel with enzymes that act as internal surgeons to patch up a flawed DNA. 2. The diagnosis of disease will be transformed by the polymerase chain reaction that amplifies samples to spot tiny fragments from the outside of the molecules that cause diseases such as Lyme disease. Polymerase chain reaction gives quick, definitive results that do not require the interpretation of physicians. Some diagnostic tests will even identify which antibiotics will be most effective against a patient's pathogens. And as the ability to diagnose disease at the molecular level improves, we will have the ability to diagnose diseases that patients have yet to feel. 3. New drugs such as Proscar and Hytrin, which shrink tumors of the prostate, may dramatically reduce the need for urologists. The discovery that a microbe causes ulcers has led to the ability to eradicate ulcers with antibiotics, reducing the need for gastroenterologists. 4. By telemedicine, physicians may bring quality medicine to remote settings. 5. Instead of thoracic specialists treating asthma and gastroenterologists treating colons, both diseases will be treated by the physician-scientist generalist through the loving touch of physician assistants and nurse practitioners. 2003 International Foundation of Employee Benefit Plans, Inc. All rights reserved. 6. The shape of health care will change as we move toward diagnostic and therapeutic certainty. Health care will shift to the home and outpatient settings. And the acute-care hospital will increasingly be devoted to trauma care.
Societal Considerations
In General
Technology has scientific, economic and social consequences. The standard followed
in evaluation is that of ef'ficiency and safety as promulgated by the Congressional
Office of Technology Assessment. The problem with this technique with medical
technology is that it omits the key element of cost.
How Technologies are Studied
When viewing medical technology, there are seven dimensions that should be considered. • Methodology • Purpose of Assessment. Technology. Technology goes beyond medical equipment; it encompasses information systems, support systems, procedures, administrative overheads, e.g. Application. Examples of applications of the technology would include: • Presentation • Rehabilitation. State of Diffusion. Examples are these: • New • Established. Properties. Examples of properties of technology would include: • Safety • Effectiveness • Cost-efficiency • Social implications. 2003 International Foundation of Employee Benefit Plans, Inc. All rights reserved. Assessors. These are the persons or groups who assess the effectiveness or describe the properties of the technology. Examples are these: • Medical panel • Health professionals • Economists. Methodology. Examples of various methodologies that can be used are these: • Expert opinion • Group judgment • Literature synthesis • Clinical truths. Purpose of Assessment. Examples of the purpose of the assessment are these: • Quality • Reputable products • Creation of a knowledge base.
Technologies Under Federal Study
There are many medical technologies currently being analyzed and assessed by the technique outlined in the previous section. Some, but by no means at all, are as follows: 1. Devices, materials, components, fabrication methods, application/implantation procedures, such as: • Cystic fibrosis screening system • Portable blood pressure monitor • Cardiovascular-defibrillation devices • Vascular prostheses • Rate-responsive pacing sensors • Blood gas monitors • Implantable drug infusion pumps • Scoliosis treatment devices • Spinal cord stimulation devices • Synthetic speech device • Electrode gels • Electro-chemical sensors. The Food and Drug Administration is involved whenever there are medical devices. 2. Certain procedures involving the eye: • Laser trabecular surgery for open-angle glaucoma 2003 International Foundation of Employee Benefit Plans, Inc. All rights reserved. • Ophthalmic neodymium: YAG lasers • Botulinum toxin therapy of eye muscle disorders • Automated Perimetry • Radial keratotomy • Keratophakia and keratomileusis • Thymoxamin. 3. Certain tests are being studied because many hospitals routinely require these for many inpatients. • Diagnostic imaging for breast disease • Radionuclide scan and x-ray for bone metastases • Upper GI fluoroscope study • Chest x-ray • Cardiac exercise stress test • Outpatient cardiac rehabilitation • Echocardiogram. 4. Other medical technologies which are being researched at the federal level • Colon cancer screening • Automated multichannel chemistry analyses • Artificial heart • Blood policy and technology • Technologies for urinary incontinence • Assistive devices for severe speech impairment • Nuclear magnetic resonance imaging • Digital subtraction angiography • Liver transplants • Supportive therapy in burn care • Interocular lens transplants • Total hip replacement • Dental sealants in prevention of tooth decay • Lowering blood cholesterol to prevent heart disease • Electroconvulsive therapy 2003 International Foundation of Employee Benefit Plans, Inc. All rights reserved. Databases and Information Sources

Medical technologies that are computer related represent a fast developing field. There
are, for example, numerous online databases accessible with microcomputers. There are
numerous medical news services accessible with microcomputers.
Criteria When Considering Medical Technology
These criteria should be considered:
• What is the cost?
• Is the technology used inconsistently?
Third Party Payer
Medical technology should be viewed broadly so as to include drugs, devices, procedures
or clinical services. From the provider's viewpoint a medical technology should be both
efficacious and appropriate to be payable.
Efficacious. This consideration is for the most part limited to new technology. The primary criteria for the procedure to be efficacious is the degree of investigation to which it is subjected. A procedure while being investigated would not be eligible for coverage. Appropriateness. Tests of medical necessity are applied to determine the Principles in Reviewing Technologies
When assessing technology for efficaciousness or appropriateness, these principles should be followed: • Governmental body should have given the final approval. • Effect on health outcomes must be measured scientifically and published. • Technology must not be as effective as any established alternative. • Technology must be limited to investigational setting; must be capable of being • Provider group generally must be able to perform the technology.
Cost Effectiveness

2003 International Foundation of Employee Benefit Plans, Inc. All rights reserved. Medicare is beginning to add another criteria, namely, cost effectiveness. There are
numerous technologies that meet the first criteria but would fail the cost-effectiveness
Pressures on Third-Party Payers
Third-party payers are constantly pressured to pay for investigational technology. The
FDA is often criticized for taking too long to either approve or disapprove a
technology. The National Cancer Institute has, or will have, tens of thousands of
patients who are being tested with new technologies; because of the enormity of the
costs, the Institute pressures the third-party payer to ease up on the investigational
criteria. A new pressure arises from the highly expensive technologies such as liver
transplant, in vitro fertilization and bone marrow transplants.
Screening expenses were a few years ago of minor significance because fully insured plans could exclude them as routine examinations. As such, screening tests became state-mandated; the costs therefore are sharply increasing. Screening tests include: mammograms, pap smears, cholesterol tests, colon cancer tests, e.g. Social-Type Problems
Three problems that are growing in costs are AIDS, drug abuse and alcohol abuse. Persons so affected are increasingly demanding ever more costly medical technologies. Prescription Drugs
Within the past few years many very expensive drugs have come on the market. Near Future Technologies
There are several new technologies close to being accepted as noninvestigational that will be coming up for payment in the near future: • Position Emission Tomography Scanning • Chorionic Villus Sampling (replaces amniocentesis). 2003 International Foundation of Employee Benefit Plans, Inc. All rights reserved.



Title: Can You Can a Can? A discovery/exploration lesson investigating the production of a cylindrical can of a given volume with the least amount of material, thus minimizing the cost of production. Links to Outcomes: • Problem Solving Students will use problem solving to investigate the possibilities for dimensions of a cylindrical can, given its volume. • Communication St

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Correspondence Gabapentin for AW and JAS are named inventors on a patent describing a novel method for cough detection, clinics in Yaita (Tochigi Prefecture) and refractory chronic cough owned by University Hospital of South Manchester and licensed to a medical device company. RA Techniques for the assessment of declares no confl icts of interest. Rayid Abdulqawi, Ashley Woodcock

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