Computer simulation streamlines ambulatory surgery patient flow and increases capacity at Bay Medical Center.
Explore the source record for details and available documents.
Ambulatory Care Information Systems↗
SEARCH · Search PubMed
Results for “Operating Room Information Systems”
Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
[The use of the BrainLAB Kolibri navigation system in endoscopic paranasal sinus surgery under local anaesthesia. An analysis of 35 cases].
BACKGROUND: As a result of technological advances, 3D-navigation systems are playing an increasingly important role in paranasal sinus and anterior skull base surgery. PATIENTS AND METHODS: The BrainLAB Kolibri navigation system (BrainLAB, Heimstetten, Germany) was used in the surgical management of chronic sinusitis and nasal polyposis in 35 patients. Surgery was performed under local anaesthesia. In order to compare this technique with traditional methods, 35 additional patients underwent conventional surgery. A clinical plausibility test using specific anatomical landmarks was performed to evaluate intraoperative navigation accuracy. In addition, a standardised questionnaire was used to document setup and registration times. Standardised rating scales helped assess whether the system can make surgery safer. RESULTS: It took approximately 5.8 min to set up the navigation system. The time required for system and patient positioning, including the attachment of the headband, was 4.2 min on average. Patient registration with the z-touch system was completed after an average of 4.2 min. It took an average of approximately 8.1 min to register a patient using the soft-touch system. The use of the navigation system increased the total time for preparation and surgery by approximately 50% in comparison to the conventional technique. An average accuracy of 1.5-2.3 mm in all three planes was measured. Participating surgeons felt that the system made surgery considerably safer. CONCLUSIONS: The BrainLAB Kolibri navigation system offers good accuracy, a short setup time and an easy registration technique. The combination of these qualities and intuitive operation make this system a suitable option for routine use in paranasal sinus surgery. As a result of its compactness, the BrainLAB Kolibri navigation system can be moved easily between different operating rooms and can also be used in small facilities (e.g. container operating theatres in field hospitals).
Adult↗
Advances in noninvasive cardiovascular imaging: implications for the anesthesiologist.
We have presented a review of recent advances in medical imaging which are relevant to the practice of anesthesia and associated research. The appropriate interpretation and use of the information derived from these noninvasive technologies can prevent unnecessary morbidity and mortality. Echocardiography remains the most advanced tool for noninvasive cardiac imaging because of its applicability for most cardiac disorders and its exquisite spatial resolution. Two-dimensional systems produce real time, dynamic, qualitative assessments of cardiac chamber morphology, size, thickness, and performance. The development of transesophageal echocardiography has brought this imaging power into the operating room for use by anesthesiologists. Recently developed quantitative and color-coded Doppler techniques will reveal intracardiac flow patterns and their alterations by anesthetics and surgery. These advantages are partially offset by inherent difficulties in quantifying echocardiographic data, and the need for highly trained operators for image reproduction. Nuclear cardiology and echocardiology are highly complementary. The scintigraphic methods identify myocardium at risk for infarction, confirm infarction when present, and produce quantitative, highly reproducible estimates of ventricular filling and performance. Time required to obtain data can be very brief for first-pass techniques, and these data are ideally suited for computer processing. Equilibrium studies require a larger dose of radioactive material, but provide excellent assessment of segmental wall motion. Preoperative studies with dipyridamole and Tl can indicate the patients truly at high risk for perioperative myocardial infarction. Monitoring and intensive care efforts may be better allocated with this information. No new technology in the past decade has stirred as much interest among clinicians as magnetic resonance imaging. Like echocardiography, it uses no ionizing radiation and is entirely noninvasive. But, unlike other imaging techniques, it utilizes multiple tissue characteristics to provide quick, highly resolved, tomographic images. Since bone is invisible to the magnetic resonance scanner, tissues inside bony structures are often best revealed with MRI. Nonimaging studies, i.e., spectroscopic data not spatially encoded, may prove to be the most important research currently underway in this field. In vivo estimates of intracellular functions, enzyme kinetics, and drug kinetics and metabolism are already in progress. The effects of anesthetic in the central nervous system and other organs may be explored in ways previously not possible.(ABSTRACT TRUNCATED AT 400 WORDS)
Anesthesiology↗
Classic electroencephalographic parameters: median frequency, spectral edge frequency etc.
Even today many anaesthesiologists rely on parameters of the autonomic nervous system, such as blood pressure and heart rate to decide if a patient is adequately anaesthetized. It is thought that the electroencephalogram (EEG) may provide more information on the state of anaesthesia. Because full EEG analysis is not possible in the operating room, processed EEG parameters have been developed comprising complex information into a single value. Time and frequency domain parameters are calculated. The power spectrum results from a Fourier analysis and can be described by parameters such as median frequency, spectral edge frequency and others. It was noted, however, that anaesthetics at low doses increase frequency of the EEG, whereas at high doses the EEG is depressed. This biphasic response makes it difficult to clearly distinguish the exact anaesthetic state of a patient. Median frequency and spectral edge frequency have been studied in numerous studies. However, no sole indicator has been derived from the EEG that could serve as a descriptor of anaesthetic depth.
Alpha Rhythm↗
Perioperative initiatives for medication safety.
Explore the source record for details and available documents.
Adverse Drug Reaction Reporting Systems↗
The Indiana network for patient care: a working local health information infrastructure. An example of a working infrastructure collaboration that links data from five health systems and hundreds of millions of entries.
The Indiana Network for Patient Care (INPC) is a local health information infrastructure (LHII) that includes information from the five major hospital systems (fifteen separate hospitals), the county and state public health departments, and Indiana Medicaid and RxHub and that carries 660 million separate results. It provides cross-institutional access to physicians in emergency rooms and hospitals based on patient-physician proximity or on hospital credentialing. The network includes and delivers laboratory, radiology, dictation, and other documents to a majority of Indianapolis office practices. The INPC began operation seven years ago and is one of the first and best examples of an LHII.
Cooperative Behavior↗
Use of time information to maximise theatre utilisation.
This project aimed to investigate how best to define and record theatre use time periods, to determine how much time was lost in theatre, to design reports on theatre time utilisation which were useful and acceptable to surgeons and hospital managers, and to determine whether the use of these reports affected utilisation. Time lost in theatre increased in proportion to the number of cases on the list, from 0% by definition with only one case to 17% with five cases. Over the eight weeks during which utilisation reports were generated and given to surgeons there was a decrease in time lost as a fraction of total time, from 10-11% to 5-6% (not statistically significant, p = 0.06). This was achieved without observable effect on the proportion of allocated time used, which remained fairly stable. The project illustrated the need to alter theatre procedures to minimise time between cases, replace the theatre book with a microcomputer as a precursor to implementation of a computerised theatre information system, and to continue to test utilisation reports as part of a regular utilisation review.
Hospital Bed Capacity, 500 and over↗
Continuous monitoring of mixed venous oxygen saturation during aortofemoral bypass grafting.
Measurement of mixed venous oxygen saturation (SvO2) may be helpful in the care of critically ill patients. Serial determinations of SvO2 give an index of the relationship between oxygen delivery and tissue oxygen consumption. Continuous monitoring of SvO2 is now readily available with the Shaw Oximetrix pulmonary artery catheter (Oximetrix Inc., Mountain View, CA). This system has provided useful information in the high risk cardiac surgery patient. Continuous monitoring of mixed venous saturation may be helpful in high risk or critically ill general and peripheral vascular surgery patients both in the intensive care unit and in the operating room. The following clinical report is presented to illustrate the usefulness of continuous SvO2 monitoring in a high risk vascular surgery patient.
Aorta, Abdominal↗
Surgical options for patients with deep-seated brain tumors: computer-assisted stereotactic biopsy.
The histologic nature of deep-seated intracranial lesions can be determined by using a computer-assisted stereotactic biopsy technique. The procedures are performed with use of local anesthesia. A data base consisting of stereotactic computed tomographic scans and stereotactic cerebral angiography is acquired. Target coordinates and trajectory approach angles are calculated by using a computer system in the operating room. Since July 1984, 36 patients with a variety of pathologic lesions in various intracranial sites have undergone this procedure at our institution. Of the 36 patients thought to have neoplastic lesions preoperatively, 6 were found to have nonneoplastic lesions, information that was of importance in the therapeutic management of these patients. Of the 30 patients with tumors, 24 had astrocytomas of various grades, 3 had metastatic lesions, and an additional 3 had lymphomas. Computer-assisted stereotactic biopsy with arteriographic control is an accurate and relatively safe method of determining the histologic nature of any suspicious intracranial lesion.
Adenocarcinoma↗
Intraoperative dynamic dosimetry for prostate implants.
This paper describes analytic tools in support of a paradigm shift in brachytherapy treatment planning for prostate cancer--a shift from standard pre-planning to intraoperative planning using dosimetric feedback based on the actual deposited seed positions within the prostate. The method proposed is guided by several desiderata: (a) bringing both planning and evaluation in the operating room (i.e. make post-implant evaluation superfluous) therefore making rectifications--if necessary--still achievable; (b) making planning and implant evaluation consistent by using the same imaging system (ultrasound); and (c) using only equipment commonly found in a hospital operating room. The intraoperative dosimetric evaluation is based on the fusion between ultrasound images and 3D seed coordinates reconstructed from fluoroscopic projections. Automatic seed detection and registration of the fluoroscopic and ultrasound information, two of the three key ingredients needed for the intraoperative dynamic dosimetry optimization (IDDO), are explained in detail. The third one, the reconstruction of 3D coordinates from projections, was reported in a previous article. The algorithms were validated using a custom-designed phantom with non-radioactive (dummy) seeds. Also, fluoroscopic images were taken at the conclusion of an actual permanent prostate implant and compared with data on the same patient obtained from radiographic-based post-implant evaluation. To offset the effect of organ motion the comparison was performed in terms of the proximity function of the two seed distributions. The agreement between the intra- and post-operative seed distributions was excellent.
Algorithms↗
Evaluation of a hands-free wireless communication device in the perioperative environment.
The objective of this study was to evaluate the efficiency and reliability of a hands-free voice over Internet protocol (VOIP) communication system in the perioperative environment. Two surveys were administered to anesthesiologists and operating room (OR) nurses working at an academic medical center. Providers were queried by alphanumeric pages or VOIP queries during OR work shifts to measure communication response times. Providers, responding to the query, were asked to verbally complete a system performance survey to capture information regarding their workload and work environment at the time of the query. A user feedback survey was independently administered in writing to a convenience sample of OR providers to obtain information regarding provider communication preferences, concerns, and recommendations. OR providers responded to communication queries four times faster when using VOIP compared to alphanumeric pagers. Providers found VOIP to be much less reliable than conventional pager-telephone systems. Dead spots in the 802.11b network and errors in speaker recognition were frequently cited as sources of system failures. Providers also expressed concern in maintaining confidentiality of patient data or other clinical data communicated using this system. The results of this study suggest that VOIP is still a developing technology but one that is currently viable in the clinical setting. The technology can be used efficiently and securely in health care if users are given the proper training its functions and capabilities.
Anesthesiology↗
An integrated environment for plastic surgery support: building virtual patients, simulating interventions, and supporting intraoperative decisions.
In the last decade a number of environments for Computer Supported Plastic Surgery have been presented. Nevertheless, an overall approach for training and intraoperative support is still missing or has not been widely exploited yet. We developed a fully integrated system which allows surgical simulation, planning, and support for computer-guided plastic surgery procedures starting from image acquisition to final intraoperative assistance. The system also provides the user with a radiological workstation able to analyse patient medical images and case studies, with advanced bidimensional and three dimensional image processing functionalities. We intend to demonstrate that such a platform can be built at an affordable cost. The radiological workstation is capable of supporting radiologists and surgeons in real patient case studies and the simulation workstation may be adopted by plastic surgeons in teaching and training of complex surgical planning. Moreover, results of simulation can be used in the operating room with a relatively high benefit in terms of improved accuracy, reduction of surgical risks, and decrease in training costs.
Decision Support Techniques↗
Intraoperative high-field-strength MR imaging: implementation and experience in 200 patients.
PURPOSE: To review the initial clinical experience with intraoperative high-field-strength magnetic resonance (MR) imaging of brain lesions in 200 patients. MATERIALS AND METHODS: Two hundred patients (mean age, 46.1 years; range, 7-84 years), most of whom had glioma or pituitary adenoma, were examined with a 1.5-T MR imager equipped with a rotating operating table and located in a radiofrequency-shielded operating theater. A navigation microscope placed inside the 0.5-mT zone and used in combination with a ceiling-mounted navigation system enabled integrated microscope-based neuronavigation. The extent of resection depicted at intraoperative imaging, the surgical consequences of intraoperative imaging, and the clinical practicability of the operating room setup were analyzed. RESULTS: Seventy-seven resections with a transsphenoidal approach, 100 craniotomies, and 23 burr-hole procedures were performed. In 55 (27.5%) of 200 patients, intraoperative MR imaging had immediate surgical consequences (eg, extension of resection in 39% of patients with pituitary adenoma or glioma). In 108 patients the navigation system was used, and for 37 of those patients, functional imaging data were integrated into the navigation system. There was nearly no difference in quality between pre- and intraoperative images. Intraoperative workflow with intraoperative patient transport for imaging was straightforward, and imaging in most cases began less than 2 minutes after sterile covering of the surgical site. No complications resulted from high-field-strength MR imaging. CONCLUSION: The high-field-strength MR imager was successfully adapted for intraoperative use with the integrated neuronavigation system. Intraoperative MR imaging provided valuable information that allowed intraoperative modification of the surgical strategy.
Adenoma↗
Development of a comprehensive operating room pharmacy.
The justification, implementation, and services of a comprehensive on-site operating room (OR) pharmacy are reviewed. Justification was accomplished through audits of controlled substance accountability, drug preparation, labeling and storage, and cost analyses of drug waste and potential savings. Implementation was achieved through the joint efforts of the Department of Anesthesia, Pharmacy, and Nursing. Services of the OR pharmacy are dynamic and include standardized drug preparation, case-by-case drug distribution and patient billing, controlled substance accountability, provision of drug information, and clinical research support. This pharmacy has proven cost effective and has become integral to the daily function of the OR.
Boston↗
Branching out with filmless radiology.
Texas Children's Hospital, a 456 bed pediatric hospital located in the Texas Medical Center, has been constructing a large-scale picture archiving and communications system (PACS), including ultrasound (US), computed tomography (CT), magnetic resonance (MR), and computed radiography (CR). Until recently, filmless radiology operations have been confined to the imaging department, the outpatient treatment center, and the emergency center. As filmless services expand to other clinical services, the PACS staff must engage each service in a dialog to determine the appropriate level of support required. The number and type of image examinations, the use of multiple modalities and comparison examinations, and the relationship between viewing and direct patient care activities have a bearing on the number and type of display stations provided. Some of the information about customer services is contained in documentation already maintained by the imaging department. For example, by a custom report from the radiology information system (RIS), we were able to determine the number and type of examinations ordered by each referring physician for the previous 6 months. By compiling these by clinical service, we were able to determine our biggest customers by examination type and volume. Another custom report was used to determine who was requesting old examinations from the film library. More information about imaging usage was gathered by means of a questionnaire. Some customers view images only where patients are also seen, while some services view images independently from the patient. Some services use their conference rooms for critical image viewing such as treatment planning. Additional information was gained from geographical surveys of where films are currently produced, delivered by the film library, and viewed. In some areas, available space dictates the type and configuration of display station that can be used. Active participation in the decision process by the clinical service is a key element to successful filmless operations.
Computer Communication Networks↗
Acute Otitis media, malaria and pyrexia in the under five age group.
BACKGROUND: Acute Otitis media is one of the most common childhood infections. It is responsible for every third visit to a pediatrician in a developed world. However, in Nigeria there is scanty knowledge about the incidence of Acute Otitis Media (AOM). OBJECTIVE: This study aimed at determining the incidence of AOM among under five year old children presenting with pyrexia, and to compare the incidence of AOM as a cause of pyrexia with the incidence of malaria in pyrexic children. DESIGN: It is a cohort study of 200 children of between the ages of 2 weeks and five years with a rectal temperature of 38 degrees C and above, seen over a period of 3 months. SETTING: The study was conducted at the Obafemi Awolowo University Teaching Hospital (OAUTHC) Comprehensive Health Centre, Eleiyele, and the children emergency room of the OAUTHC, Ile-Ife. PATIENTS AND METHODS: A questionnaire to collect information on the demographic data was administered to each mother/guardian of the patient. Otoscopic examination using a battery-operated hand held otoscope and magnifying lenses were done in addition to general systemic physical examination. Thin and thick blood smears were made for malaria parasite. The dried slides were examined under the microscope using the X 100 objective. Sixteen of the patients' slides were lost after processing. RESULTS: Out of the 200 patients that were studied, 58 (29%) had AOM. The highest incidence was recorded in the age group 12-24 months while the least age of occurrence was found to be the age group 4-5 years. Malaria parasitemia was found in 81 (43.5%) while 21 (25.9%) of those with parasitemia also had AOM. But 76 (36%) of the study population had neither AOM nor malaria parasitemia. CONCLUSION: Acute Otitis media was found in 29% of under five years old presenting with pyrexia. It was found to be highest in the first and second year of life, and was found to be least in the 5th year of life. Malaria was found in 81 (43.5%) of the children, and 21 (10.5%) of the children had malaria with a co-existing AOM.
Acute Disease↗
The use of local area networks in the day surgery department.
As patient care moves from inpatient to outpatient status, there is an increased demand for specially developed software applications in the Day Surgery Department. Although a stand-alone computer initially could handle routine tasks performed by surgical staff, it is becoming increasingly apparent that a need exists for a more inclusive system that can manage the vast amounts of information necessary for effective resource management in today's Day Surgery Department environment. Local area networks (LANs) provide the necessary flexibility, expandability, and usability requisite of such a system. This article will discuss the benefits of using LANs in the Day Surgery Department. Specifically, an operating room scheduling and resource management software program is used to illustrate the advantages of LANs in the Day Surgery Department.
Ambulatory Surgical Procedures↗
Large-scale PACS implementation.
The transition to filmless radiology is a much more formidable task than making the request for proposal to purchase a (Picture Archiving and Communications System) PACS. The Department of Defense and the Veterans Administration have been pioneers in the transformation of medical diagnostic imaging to the electronic environment. Many civilian sites are expected to implement large-scale PACS in the next five to ten years. This presentation will related the empirical insights gleaned at our institution from a large-scale PACS implementation. Our PACS integration was introduced into a fully operational department (not a new hospital) in which work flow had to continue with minimal impact. Impediments to user acceptance will be addressed. The critical components of this enormous task will be discussed. The topics covered during this session will include issues such as phased implementation, DICOM (digital imaging and communications in medicine) standard-based interaction of devices, hospital information system (HIS)/radiology information system (RIS) interface, user approval, networking, workstation deployment and backup procedures. The presentation will make specific suggestions regarding the implementation team, operating instructions, quality control (QC), training and education. The concept of identifying key functional areas is relevant to transitioning the facility to be entirely on line. Special attention must be paid to specific functional areas such as the operating rooms and trauma rooms where the clinical requirements may not match the PACS capabilities. The printing of films may be necessary for certain circumstances. The integration of teleradiology and remote clinics into a PACS is a salient topic with respect to the overall role of the radiologists providing rapid consultation. A Web-based server allows a clinician to review images and reports on a desk-top (personal) computer and thus reduce the number of dedicated PACS review workstations. This session will focus on effective strategies for a seamless transition. Critical issues involve maintaining a good working relationship with the vendor, cultivating personnel readiness and instituting well-defined support systems. Success depends on the ability to integrate the institutional directives, user expectations and available technologies. A team approach is mandatory for success.
Computer Communication Networks↗