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Investigational drug information through a hospitalwide computer system.

A hospitalwide computer system that combines protocol-specific information on investigational drugs with order entry is described. A large university teaching hospital had in place a computerized clinical information system. Among other uses, physicians used the system for direct entry of total parenteral nutrient solution orders and associated laboratory tests; labels are produced automatically. Personnel from the pharmacy and information services departments met to discuss how to apply the computer system to investigational drug information. The application they designed has three components: protocol information, order entry, and patient monitoring. Protocol information, including all the standard drug data plus regulatory and investigator information, is displayed as a report on the user's terminal. The order-entry pathway allows the research pharmacist to predesign medication labels that are specific to each study and include all required information. This saves time, ensures accurate labeling, and provides a means for generating patient charges. The patient-monitoring component provides information to the research pharmacist in a daily report to assist in locating subject patients and to monitor compliance with protocols. The system has improved the access of health-care professionals to investigational drug information and decreased the time pharmacists spend dispensing these agents. The system has been well received, although up to three weeks is needed to bring the information online. A hospitalwide information system is effective in disseminating information on investigational drugs and facilitating order entry.

California↗

Computer system helps nurses in care delivery.

Sign-out module is incorporated into hospital's electronic medical record. Fields populated with patient demographic and admit-discharge-transfer data; medical team information; allergies; active medication lists; and resuscitation status. Boost in nursing morale an unexpected benefit of the new system.

Computer Systems↗

Managing secure computer systems and networks.

No computer system or computer network can today be operated without the necessary security measures to secure and protect the electronic assets stored, processed and transmitted using such systems and networks. Very often the effort in managing such security and protection measures are totally underestimated. This paper provides an overview of the security management needed to secure and protect a typical IT system and network. Special reference is made to this management effort in healthcare systems, and the role of the information security officer is also highlighted.

Computer Communication Networks↗

Critiquing anesthetic management: the "ATTENDING" computer system.

ATTENDING, a computer system under development using Artificial Intelligence techniques, is designed to critique an anesthetist's preoperative plan for anesthetic management. The system receives as input: 1) a list of a patient's medical problems; 2) a planned surgical procedure; and 3) an anesthetic plan outlining the agents and techniques to be used for premedication, induction, intubation, and maintenance of general or regional anesthesia. ATTENDING critiques this plan, discussing the risks and benefits of the proposed approach and of other reasonable approaches. To critique a physician's plan, the ATTENDING system must be able to 1) explore alternative approaches to a patient's management in a flexible fashion; 2) assess the relative risks and benefits of these alternatives; and 3) produce a readable, easily understood analysis written in English prose. This article describes how these design issues are addressed in ATTENDING's current implementation. The ATTENDING system is presently being used in a tutorial mode which allows self-evaluation by an anesthetist.

Anesthesia↗

Computer system for analysis of ST segment changes on 24 hour Holter monitor tapes: comparison with other available systems.

The accuracy of a computer system that was developed for the analysis of ST segment changes recorded on Holter ambulatory electrocardiographic monitoring tapes was compared with conventional visual scrutiny, beat by beat analog printouts and a commercial J point trend system. The program calculates and plots multiple electrocardiographically derived variables in a high temporal resolution trend format. Fifty tapes of good recording quality obtained from 19 patients (13 with chronic stable angina and 6 with variant angina) were assessed visually and with the computer system; of these, 20 were analyzed by all four techniques. In the 50 tapes, 629 episodes of diagnostic ST segment changes (all true positive results) were identified by using the computer system. In contrast, only 507 were identified by visual scrutiny; none of these 507 episodes was missed by computer analysis. On the 20 tapes assessed using computer, visual, beat by beat analog and J point trend system analysis, 268, 221, 230 and 178 episodes, respectively, were documented. For the four techniques, false negative and positive results were 0, 47, 38 and 90 and 0, 10, 6 and 24, respectively. The results indicate that, of the systems assessed in this study, the computer program provides the highest accuracy for detection of transient ST segment changes. This is probably accreditable to the compact presentation of multiple electrocardiographically derived variables, allowing a detailed quantitative assessment of 24 hour tapes. It is of particular value for pathophysiologic and pharmacologic studies.

Angina Pectoris↗

Medical informatics: the substantive discipline behind health care computer systems.

The computer is rapidly becoming an interactive workstation for medical research and for clinical decision-making and it has become a preferred instrument for communication and documentation throughout health care. However, when the attempt is made to use the rigid conventions of information processing to impose order on the characteristically volatile and unpredictable phenomena encountered in the clinical setting, deep seated logical issues are uncovered. This challenge has generated the new field of Medical Informatics, one major goal of which is to formulate computer logics that can properly relate the idealized descriptions of disease, the rules for medical practice and the general guidelines for health care to the intricate diversities encountered in the care of individual patients. The Integrated Academic Information Management System (IAIMS) program of the National Library of Medicine provides the most ambitious environment for research in this new endeavor.

Expert Systems↗

The development and extension of hepatohilar bile duct carcinoma. A three-dimensional tumor mapping in the intrahepatic biliary tree visualized with the aid of a graphics computer system.

Computer-assisted three-dimensional (3D) reconstruction of the biliary tree including extrahepatic and intrahepatic parts was performed from surgical or autopsy materials from 12 patients with hepatohilar bile duct carcinoma in an effort to visualize three-dimensionally the distribution of carcinoma and dysplasia. In each case, material including a hepatic lobe was reduced to serial slices 1 mm thick using a ham slicer, then the tumors, ducts with carcinoma in situ, and those with dysplasia were submitted to reconstruction. In a 3D map of biliary tree reproduced on a display, a dysplastic zone was shown in most cases surrounding a focus of carcinoma, justifying the assumption of a dysplasia-carcinoma sequence. The carcinoma itself proved to form multiple foci along bile ducts in as many as 42% of the patients, in some of whom the foci were independent without any intervening dysplasia. These results suggest that as extensive a surgical measure as possible should be taken in designing a strategy against this tumor.

Adenoma, Bile Duct↗

Considerations in the purchase of a nuclear medicine computer system.

Selection of a nuclear medicine computer system is a process that should be approached with care and forethought. The general scheme should be to define your needs and constraints, determine what is available, investigate the leading candidates, make a site visit, and, finally, submit an order. Through a series of discussions between members of the Computer Council of the Society of Nuclear Medicine and representatives from the manufacturers of computer systems, a set of important considerations emerged, which are reported in this paper. This paper is not intended to be a step-by-step guideline to the purchase of a computer system. Rather, it is a set of concepts and considerations with which the prospective purchaser should be familiar before undertaking such a purchase.

Computer Systems↗

Musculoskeletal pain associated with the use of computer systems in Nigeria.

INTRODUCTION: Computer related musculoskeletal disorders affect millions of computer users yearly in developed nations as reported in the literature. With proliferation of computer systems in the developing nations, the associated musculoskeletal pain has yet to be investigated. This serves as impetus for this study. METHODS: A structured questionnaire was used to obtain information from computer users across six federal university campuses in Nigeria. The questionnaire contained two sections of 35 items each. The questions requested the respondents to provide information on age, sex, years of computer usage, hour spent on computer per week, associated musculoskeletal pain, pain severity and knowledge of preventive measures. 1041 questionnaires were analyzed using descriptive statistics. RESULT: Low back pain and neck pain were found to be the highest pain complaint with 74% and 73% respectively. 67% of the respondents complained of wrist pain, followed by finger pain (65%), shoulder pain 63% and general body pain 61%. The knee and foot pains were the least reported complaints with 26% and 25% respectively. In terms of pain severity, low back pain, finger pain, neck pain and shoulder pain are rated to be moderate, while all other joints were said to be of mild pain. DISCUSSION: The results of this study indicated that low back pain, neck pain and upper limbs are the common disorders complaints among the users. The cause of the pain may be attributed to bad ergonomics among the users.

Adult↗

How family physicians choose an office computer system.

BACKGROUND: Purchasing an office computer can be time consuming and frustrating. Financial costs and time demands make it difficult for the family physician, especially in solo practice, to follow the many recommendations offered in the literature. The purpose of this study was to identify the most helpful selection factors used by family physicians who had already purchased an office computer. METHODS: In May 1990 an 18-item questionnaire was mailed to a random sample of 26 percent of the 1167 active members of the Washington Academy of Family Physicians. A final response rate of 45 percent was achieved. Twenty-three percent of the nonresponders were contacted to obtain information about practice demographics and office computer status. RESULTS: Seventy-three percent of responders reported using a computer in their practice. The mean cost ranged from $17,300 for solo practitioners to $55,000 for multispecialty groups. Respondents who reported performing a prepurchase needs assessment, involving the office staff in the decision process, and making cost comparisons were more satisfied with their computer systems than those who did not (P less than 0.05). Satisfaction and acceptance were lower and negatively related to an increasing amount of time needed for the system to become fully operational (P less than 0.01). The level of involvement by the practitioner in the decision process was highly predictive of satisfaction with a computer system: those physicians who were most involved were also the most satisfied. CONCLUSIONS: Family physicians responsible for selecting an office computer for their practices are advised to become personally involved in the decision process, evaluate the practice's needs and goals, involve the office staff, and compare costs before choosing a system. A set of guidelines for selecting an office computer is presented.

Computer Literacy↗

Hospital pharmacy computer systems--1982.

Results of a survey of hospital pharmacy computer systems vendors are reported. A questionnaire was mailed to 317 possible vendors of hospital pharmacy computer systems in August 1982. Of the 89 companies responding, 30 stated that they marketed a hospital pharmacy system. The results are tabulated in this paper according to general system information, system hardware, system software, and system features. The most common classification of the responding companies was the health-system corporation; second most common was pharmacy computer system companies. Twenty companies have marketed their systems for two years or longer. Sixteen companies now claim to have contracts with more than 20 health-care institutions. The survey results are offered as a guide for comparing the similarities and differences among various vendors of hospital pharmacy computer systems.

Computers↗