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PubMed2002

Rapid diagnostic tests for malaria parasites.

Malaria presents a diagnostic challenge to laboratories in most countries. Endemic malaria, population movements, and travelers all contribute to presenting the laboratory with diagnostic problems for which it may have little expertise available. Drug resistance and genetic variation has altered many accepted morphological appearances of malaria species, and new technology has given an opportunity to review available procedures. Concurrently the World Health Organization has opened a dialogue with scientists, clinicians, and manufacturers on the realistic possibilities for developing accurate, sensitive, and cost-effective rapid diagnostic tests for malaria, capable of detecting 100 parasites/microl from all species and with a semiquantitative measurement for monitoring successful drug treatment. New technology has to be compared with an accepted "gold standard" that makes comparisons of sensitivity and specificity between different methods. The majority of malaria is found in countries where cost-effectiveness is an important factor and ease of performance and training is a major consideration. Most new technology for malaria diagnosis incorporates immunochromatographic capture procedures, with conjugated monoclonal antibodies providing the indicator of infection. Preferred targeted antigens are those which are abundant in all asexual and sexual stages of the parasite and are currently centered on detection of HRP-2 from Plasmodium falciparum and parasite-specific lactate dehydrogenase or Plasmodium aldolase from the parasite glycolytic pathway found in all species. Clinical studies allow effective comparisons between different formats, and the reality of nonmicroscopic diagnoses of malaria is considered.

Animals↗
PubMed1998

Evaluation of excessive anticoagulation in a group model health maintenance organization.

BACKGROUND: The fourth American College of Chest Physicians Consensus Conference on Antithrombotic Therapy recently published guidelines that included recommendations regarding the management of excessive anticoagulation. Limited data are available to support these recommendations. OBJECTIVES: To assess management and outcomes of excessive anticoagulation in a group model health maintenance organization, compare management with the published guidelines, and analyze the cost of treatment strategies. METHODS: A search of computerized laboratory information identified patients with an international normalized ratio (INR) of greater than 6.0 during the 9-month study. Pertinent data were collected through a retrospective medical record review. Information was concurrently collected for cost analyses. RESULTS: The analysis included 301 episodes of excessive anticoagulation among 248 patients. Most (83%) episodes of elevated INRs were managed conservatively by a temporary discontinuation of warfarin sodium therapy until the INR was in a therapeutic range. Conservative management resulted in no sequelae in 212 (85.1%) of 249 episodes. Two episodes (0.8%) of major bleeding evolved in patients managed conservatively. No sequelae were documented in 23 (44%) of 52 episodes of phytonadione (vitamin K1) administration. Sixteen (31%) episodes of major bleeding were documented, but bleeding occurred before phytonadione administration in all cases. Administering phytonadione resulted in hospital admission for 3 patients--2 (3.8%) because of thromboembolism and 1 (1.9%) for the administration of heparin sodium. Cost-effectiveness analysis determined that treatment with phytonadione is 7 times more costly than conservative management when INRs are between 6.0 and 10.0. CONCLUSIONS: Most episodes of excessive anticoagulation were not managed per consensus guidelines. The higher the INR, the more likely were interventions to adhere to the guidelines. Administering phytonadione to patients with a moderate elevation of INRs (6.0-10.0) may be unnecessary. Based on this study, conservative management is a viable option.

Aged↗
PubMed2004

The quality of care plans for patients with do-not-resuscitate orders.

BACKGROUND: Care plans for patients with do-not-resuscitate (DNR) orders often fail to define limits other than cardiopulmonary resuscitation and fail to address other patient care needs. We studied the explicitness and comprehensiveness of care plans for patients with DNR orders and what factors were associated with this aspect of the quality of their care. METHODS: A cross-sectional study was conducted at Georgetown University Medical Center (GUMC), Washington, DC, and St Vincent Catholic Medical Centers (SVCMC), St Vincent's Hospital-Manhattan, New York, NY. Participants included 189 consecutive medical inpatients with DNR orders. RESULTS: A previously validated medical chart review technique termed concurrent care concerns (CCCs) measured whether 11 possible patient care needs had been addressed within 2 days of the DNR order. Reasons for the DNR order were documented in only 55% of cases, and a consent conversation was documented in only 69%. The mean number of total CCCs per DNR order was 1.55 (1.84 at GUMC and 1.29 at SVCMC; (P =.007). In a multivariate logistic regression analysis of low ( or=2) CCCs, patients with malignancy (P =.002), higher APACHE III (Acute Physiology and Chronic Health Evaluation III) scores (P =.007), and a documented consent conversation (P =.009) and those at Georgetown (P =.005) were more likely to have high attention to CCCs. Patients with dementia were the least likely to have high attention to CCCs. CONCLUSIONS: Documented consent conversations and care plans for patients with DNR orders are less than ideal. Care plans differ in quality by diagnosis, institution, and whether or not a consent conversation is documented. These observations might help to guide interventions that aim to improve the care of patients with DNR orders.

APACHE↗
PubMed2000

Characteristics associated with inappropriate hospital use in elderly patients admitted to a general internal medicine service.

Our objective was to identify patient characteristics associated with inappropriate hospital days in a cohort of elderly medical inpatients. This prospective cohort study included a total of 196 patients aged 75 years and older, who were consecutively admitted over eight months to the internal medicine service of a regional, non-academic public hospital located in a rural area of Western Switzerland. Patients with severe cognitive impairment, terminal disease, or previously living in a nursing home were excluded. Data on demographics, medical, physical, social and mental status were collected at admission. A blinded hospitalization review was performed concurrently using a modified version of the Appropriateness Evaluation Protocol (AEP). Subjects' mean age was 82.4 years; 63.3% were women. Median length of stay was 8 days. Overall, 68 patients (34.7%) had at least one inappropriate day during their stay, including 18 patients (9.2%) whose hospital admission and entire stay were considered inappropriate. Most inappropriate days were due to discharge delays (87.10%), primarily to nursing homes (59.30%). Univariate analysis showed that subjects with inappropriate days were more likely to be living alone (69.1 vs 48.4%, p=0.006), and receiving formal in-home help (48.5 vs 32.8%, p=0.031). In addition, they were more impaired in basic and instrumental activities of daily living (BADLs, and IADLs, p<0.001 and p=0.015, respectively), and more frequently had a depressed mood [29.4 vs 10.9%, p=0.001 with a score > 6 at the Geriatric Depression Scale (GDS), short form]. Using multivariate analysis, independent associations remained for patients living alone (OR 2.6, 95%CI 1.2-5.8, p=0.016), those with a depressed mood (OR 2.8, 95%CI 1.1-7.3, p=0.032), with BADL dependencies (OR 1.5, 95%CI 1.2-1.8, p=0.001), and IADL dependencies (OR 1.3, 95%CI 1.0-1.6, p=0.032). Cardiovascular (OR 0.2, 95%CI 0.1-0.7, p=0.008) and pulmonary admission diagnoses (OR 0.1, 95%CI 0.0-0.7, p=0.022) were inversely associated with inappropriate hospital days. In conclusion, patients living alone, functionally impaired and showing depressive symptoms were at increased risk for inappropriate hospital days. These characteristics might permit better targeting for early discharge planning in these at-risk subjects, and contribute to avoiding premature discharge of other vulnerable elderly patients. Whether these interventions for at-risk patients will also result in prevention of hospitalization hazards, such as deconditioning and related functional decline, will require further study.

Activities of Daily Living↗
PubMed2003

Strategic Environmental Assessment of the Effects of European Union's Regional Development Plans in Doñana National Park (Spain).

The European Union's Structural Funds are implemented by means of Regional Development Plans (RDP), whose regionally scoped environmental assessment is required. We highlight the deficiencies faced by this approach when subregional areas with high conservation natural values are involved and illustrate it with the case of the RDP of Andalusia region on Doñana National Park area (Spain). Commissioned by the World Wildlife Fund, a Strategic Environmental Assessment (SEA) of the Andalusian RDP was carried out focusing on Doñana and its area of influence. This is a complex space where some of the most environmentally valuable features in the continent coexist with a surrounding intense and multi-sector economic activity, threatening its conservation. In the absence of an established sustainability framework in the Region, a "trickle-down" SEA approach evidenced the need to produce a set of environmental, economic and social guidelines for sustainable management of land, against which the RDP objectives were tested for coherence. An "incremental" SEA approach was also tested, which involved the identification of 79 measures and actions stemming from the RDP provisions and other concurrent planning documents reviewed and the qualitative assessment of their individual and cumulative potential impacts on Doñana environments. In the light of the results, a set of complementary mitigating measures was proposed for inclusion in tiered stages of the planning process. Measures to avoid, reduce, remedy and monitor the major types of impact were proposed, including provisions for public participation. SEA emerges as an instrument for non-governmental organizations (NGOs) to carry out independent assessment of public development initiatives.

Agriculture↗
PubMed1993

Induction chemotherapy for locally advanced non-small cell lung cancer.

The poor survival of patients with stage III non-small cell lung cancer has led to a reevaluation of the role of systemic chemotherapy administered before operation. The results of 15 phase-II pilot trials of induction chemotherapy (5 with chemotherapy alone; 4 with chemotherapy and radiotherapy; and 6 with chemotherapy and concurrent radiotherapy) are reviewed in this article, and recommendations for future randomized studies are made. For most trials, only patients in stage IIIa were eligible, but five trials included both IIIa and IIIb patients. The studies employed a variety of chemotherapy and radiotherapy induction protocols, but no superiority could be demonstrated for the administration of chemotherapy and radiotherapy over chemotherapy alone. Response was observed in more than 50% of patients overall, although the complete clinical remission rate was always less than 15%, and the pathologic complete response rate was usually less than 10%. After induction therapy, approximately 70% of patients were eligible for a thoracotomy, and complete resection was possible in 60% of patients. The median survival ranged from 8 to 32 months, with a median of approximately 1 1/2 years. Two-year to 3-year survival ranged from 25% to 30%. The studies reviewed showed that induction therapy followed by surgical resection is feasible and is not associated with unacceptable toxicity. The apparent survival benefit conferred by such combined modality treatment may be due to patient selection, and until randomized trials are undertaken, induction therapy and surgical intervention for locally advanced non-small lung cancer must be viewed as experimental.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1984

Wilms tumor and nephrotic syndrome in male pseudohermaphroditism.

A case is reported of a child with male pseudohermaphroditism in whom Wilms tumor developed at age twenty-two months. The tumor was treated accordingly, but the child subsequently died of nephrotic syndrome with renal failure at age thirty-two months. After reviewing the similar concurrence of these disorders described as a syndrome, it was suggested that they may have basic embryologic abnormalities in common and that all of them originate during embryogenesis. The importance of bearing this syndrome in mind in the management of a child with abnormal gonadal differentiation is stressed.

Disorders of Sex Development↗
PubMed2005

Pulmonary atresia with ventricular septal defects and major aortopulmonary collateral arteries: unifocalization brings no long-term benefits.

OBJECTIVES: We sought to evaluate the contribution of unifocalization procedures in the management of patients with pulmonary atresia, ventricular septal defect, and major aortopulmonary collateral arteries. METHODS: From 1975 through 1995, 82 consecutive patients were entered in a multistage approach and had 189 sternotomies and thoracotomies to perform 119 shunts, 130 major aortopulmonary collateral artery transplantations, and 76 major aortopulmonary collateral artery ligations. The serial angiographies and the follow-up of these patients were reviewed. RESULTS: The concurrent follow-up rate was 80%. The hospital mortality of the preliminary procedures was 4% (7/189). Fifty-three (65%) patients had a complete repair. The hospital mortality of the repair was 8% (4/53), and 9 late deaths occurred after repair, all of which were cardiac related. The overall survival of all patients to the age of 30 years was 58% +/- 7%. Survival 12 years after complete repair was 51% +/- 14%. On angiography, central shunts promoted growth of central pulmonary arteries in all cases (29 patients). Sixty unifocalized major aortopulmonary collateral arteries were identified in 31 patients. After a mean of 3.2 +/- 4 years, 26 thrombosed, and 12 presented with a stenosis of greater than 50%. Serial measurements of 29 major aortopulmonary collateral arteries showed no signs of growth (P = .25). CONCLUSION: Long-term survival into adulthood of patients with pulmonary atresia, ventricular septal defect, and major aortopulmonary collateral arteries has been achieved with a multistage approach. However, late survival depends exclusively on the growth of the native pulmonary circulation. The few unifocalized major aortopulmonary collateral arteries that did not thrombose failed to grow.

Abnormalities, Multiple↗
PubMed2004

Neuroretinitis in patients with multiple sclerosis.

PURPOSE: To present a case series of three patients with neuroretinitis associated with multiple sclerosis. DESIGN: Retrospective, noncomparative, consecutive, interventional case series. PARTICIPANTS: Thirty-five consecutive patients with neuroretinitis. METHODS: The records of 35 consecutive patients with neuroretinitis were reviewed for prior, concurrent, or subsequent development of multiple sclerosis. MAIN OUTCOME MEASURES: Presentation, clinical course, and diagnosis of multiple sclerosis. RESULTS: Three of 35 patients (8.6%) with neuroretinitis were diagnosed with multiple sclerosis by the McDonald criteria. One of the three patients underwent brain biopsy that further confirmed multiple sclerosis. Neuroretinitis in the three patients occurred after the diagnosis of multiple sclerosis. All three patients with multiple sclerosis had been treated with interferon beta before or concurrently with the development of neuroretinitis. CONCLUSIONS: Neuroretinitis can be an associated manifestation of multiple sclerosis. The possible association between neuroretinitis and interferon beta warrants further investigation.

Adult↗
PubMed1989

Quality of care and utilization management: contemporary tools and strategies.

An effective Quality-Utilization Management Program requires a contemporary and clinically relevant information system. Involvement of the medical staff and support of hospital personnel are critical to implement such a program. Equally important is the commitment of government and community representatives to address hospital quality and utilization issues in the context of the full range of community services. Outlining the background leading to the inception of a Quality-Utilization Management Program in a multi-hospital system, the authors also present the rationale for selecting a concurrent and retrospective review system.

British Columbia↗
PubMed1995

An inpatient diabetes QI program.

OBJECTIVE: The goal of this study was to establish a continuous quality improvement (CQI) program for diabetes which would identify patterns in the problems of care encountered by hospitalized patients with diabetes and improve the in-hospital process of diabetes care delivery. RESEARCH DESIGN AND METHODS: The laboratory information system in an acute and tertiary care 1,000-bed urban teaching hospital provided us on a daily basis with a list of patients on the medical service having blood glucose (BG) levels < 40mg/dl or > 450mg/dl and positive serum acetones. We performed concurrent implicit chart review when BG levels were hypoglycemic (< 40mg/dl) or hyperglycemic (> 450mg/dl on two occasions) or when diabetic ketoacidosis (DKA) was present (acetones were > 1+) using preset indicators for documentation and appropriate medical management. Data were expressed as the ratio of number of cases in compliance with the indicator over total number of cases identified. A test for trend in proportions was used to assess compliance with the indicators over time. RESULTS: Documentation of nursing unit-based capillary blood glucose (CBGM) and insulin infusion monitoring improved significantly over time (p < 0.001 for both). The medical management of hypoglycemia, hyperglycemia and DKA improved (p = 0.1) over the three-year period. Identification of recurrent multidisciplinary process problems in the management of DKA, intravenous insulin infusion constitution and delivery, CBGM determination in the setting of anemia, and recognition of clinical settings conducive to the development of hypo- and hyperglycemia were identified and addressed with standardization in documentation, an insulin infusion protocol, administrative rules, and staff education. CONCLUSIONS: Efforts to standardize specific clinical and documentation processes had a positive impact on the care of hospitalized patients with diabetes and resulted in an institutional effort to improve inpatient diabetes care with a CQI team.

Clinical Laboratory Information Systems↗
PubMed2003

Gastrointestinal disease control after histamine2-receptor antagonist dose modification for renal impairment in frail chronically ill elderly patients.

OBJECTIVES: To determine whether histamine2-receptor antagonist (H2RA) dose modified for renal impairment affects gastrointestinal (GI) disease control. DESIGN: Concurrent medical record review. SETTING: One hundred forty-six nursing facilities throughout the United States. PARTICIPANTS: Three hundred thirty-six patients aged 65 and older receiving H2RAs for GI disorders. INTERVENTION: H2RA dose modified for renal impairment or no dose change. MEASUREMENTS: Disease control (no H2RA dose increase for 6 months or longer, additional GI medication, hospitalizations, emergency room visits, and unscheduled physician visits for GI symptoms) was evaluated using chart review at 3, 6, 9, and 12 months in nursing home patients aged 65 and older with H2RA dose modified for decreased creatinine clearance (ClCr) according to manufacturer. RESULTS: Three hundred thirty-six patients, mean age +/- standard deviation 85.9 +/- 7.9, with mean ClCr of 33.6 +/- 10.4 mL/min, were recommended to receive lower H2RA doses based upon estimated renal function. Patients were analyzed in two groups: H2RA dose reduced (Group 1) and dose reduction not adopted or implemented (Group 2). There was no difference in baseline characteristics (age, weight, ClCr, or starting H2RA dose and indication) between the two groups. One hundred ninety-eight patients in Group 1 were taking 195.5 +/- 71.0 mg per day of nizatidine or equivalent, compared with 183.7 +/- 66.6 mg for 138 patients in Group 2. For patients with 90 days of follow-up, the mean H2RA dose in Group 1 was 100.2 +/- 44.3 mg, compared with 187.8 +/- 69.9 for Group 2 (P <.0001) The mean decrease in daily dose for Groups 1 and 2 after 365 days were 98.9 +/- 72.9 mg and 22.2 +/- 68.2 mg, respectively (P <.0001). Except for more physician visits in Group 2, disease control was similar for all groups. Major and minor GI bleeding events were similar across both groups and over time. The 12-month mortality rate was 12.1% and 21.7% for Groups 1 and 2, respectively. This difference was statistically significant (P =.02). CONCLUSION: The findings suggest that the dose of H2RAs may be decreased based upon renal function in frail elderly patients without compromising GI disease control.

Aged↗
PubMed1998

Aminoglycoside pharmacokinetics in African-Americans with normal renal function.

OBJECTIVE: To compare aminoglycoside pharmacokinetics in African-Americans with normal renal function with published adult population values. DESIGN: An Institutional Review Board approved concurrent study. SETTING: The study was conducted at Howard University Hospital, Washington DC. SUBJECTS: All subjects had serum creatinine levels of 1.5mg/dl or less and were receiving aminoglycoside for suspected or documented Gram-negative infection, had no obvious underlying disease condition that could influence aminoglycoside pharmacokinetics and were aged 18 years or older. MAIN OUTCOME MEASURES: Volume of distribution (Vd), half-life (t1/2), elimination rate constant (Ke) and total body clearance (Cl) were calculated using a one-compartment, open, linear pharmacokinetic model. Using an unpaired Student's t-test, the pharmacokinetic values of our patients were compared with general population values. INTERVENTIONS: Patients receiving aminoglycosides were identified by the pharmacist through the hospital's standard antibiotic order sheet. Twenty-five patients were enrolled after they met the inclusion criteria. Pharmacists made recommendations for dose change as part of standard of care when inappropriate doses were ordered. In collaboration with medical and nursing staff, the amount and time of dose administration, and steady-state peak and trough serum drug levels were stringently measured, documented on a data collection form and used to calculate pharmacokinetic values for our patients. The form was also used to document demographic information. RESULTS: The following values were obtained: Vd 0.27+/-0.15 litres/kg, t(1/2) 1.93+/-1.38h, Ke 0.31+/-0.134/h (gentamicin), Ke 0.22 +/- 0.10/h (tobramycin), Cl 103.95+/-62.98ml/kg/h (gentamicin) and Cl 118.96+/-84.83ml/kg/h (tobramycin). These values are not significantly different from general population values. Following a mean tobramycin or gentamicin dose of 1.32+/-0.32mg/kg ideal body weight (IBW)/ dose or 1.11+/-0.33 mg/kg actual body weight (ABW)/ dose every 8h, patients achieved a mean peak and trough serum drug levels of 6.6+/-3.86mg/litre and 1.03+/-0.68mg/litre, respectively. Wide interpatient pharmacokinetic variability was also observed. CONCLUSIONS: We conclude that aminoglycoside pharmacokinetics in African-Americans seem to be consistent with the published general population values. Thus, initiating aminoglycoside regimens using population dosing guidelines appears to be appropriate. However, due to the observed wide interpatient pharmacokinetic variability, individualized dosing is required with very close monitoring, to avoid or minimize toxicity.

Adult↗
PubMedDate not supplied

No end in sight: the nurse's role in ensuring a holistic approach in the care of a patient undergoing a drainage implant for end-stage glaucoma.

This article addresses issues that relate to the surgical care of patients in imminent danger of permanently losing their eyesight as a result of advanced glaucoma. An overview of the stages of glaucoma and concurrent treatment is reviewed. Close attention is given to the psychosocial and physiologic ramifications of this end-stage surgical procedure. The nurse's role in assisting patients through this life crisis is essential to the patient's well being, lifestyle changes, and quality of life.

Glaucoma↗
PubMed2005

Blood transfusion prescribing in the ACT: an insight into clinical decision making.

Medical practitioners with varying levels of experience may make medical decisions in hospitals. Little is known about who is responsible for these decisions. We determined transfusion appropriateness during an audit of blood transfusion, before developing practice improvement strategies, by concurrent medical record review. The prescriber could be determined in 78% of transfusion episodes: most were specialist staff. Registrars and after-hours staff prescribed significantly fewer inappropriate transfusions. The findings have significant implications in understanding clinical decision making in the hospital setting and for the targeting of quality improvement strategies in particular.

Australian Capital Territory↗
PubMed1995

Meningococcal endocarditis presenting as cellulitis.

We report the case of a patient with mixed connective tissue disease who presented with two very unusual manifestations of meningococcal disease, cellulitis and endocarditis, concurrently. We also review the literature concerning Neisseria meningitidis as a causative agent of cellulitis or endocarditis. While meningococcal endocarditis or cellulitis is very rare, autoimmune disease predisposes patients to meningococcal infection. Therefore, unusual infections with this organism should be considered in the differential diagnosis of fever and rash in patients with connective tissue diseases.

Cellulitis↗
PubMed1995

Medical appropriateness of hospital utilization: an overview of the Swiss experience.

We present here the principal results of four concurrent hospital utilization reviews conducted in Switzerland in 1990 and 1991, based on an adapted Appropriateness Evaluation Protocol. The studies were performed on all the hospital days from a sample of patients admitted over a 6 month period. The level of inappropriate use ranged between 8 and 15% in terms of days and was consistently higher in medicine than in surgery. In comparison with other published studies, the low proportion of observed inappropriate days is probably due, at least partly, to differences in study design.

Bias↗
PubMed2000

Evolution in the management of hepatic trauma: a 25-year perspective.

OBJECTIVE: To define the changes in demographics of liver injury during the past 25 years and to document the impact of treatment changes on death rates. SUMMARY BACKGROUND DATA: No study has presented a long-term review of a large series of hepatic injuries, documenting the effect of treatment changes on outcome. A 25-year review from a concurrently collected database of liver injuries documented changes in treatment and outcome. METHODS: A database of hepatic injuries from 1975 to 1999 was studied for changes in demographics, treatment patterns, and outcome. Factors potentially responsible for outcome differences were examined. RESULTS: A total of 1,842 liver injuries were treated. Blunt injuries have dramatically increased; the proportion of major injuries is approximately 16% annually. Nonsurgical therapy is now used in more than 80% of blunt injuries. The death rates from both blunt and penetrating trauma have improved significantly through each successive decade of the study. The improved death rates are due to decreased death from hemorrhage. Factors responsible include fewer major venous injuries requiring surgery, improved outcome with vein injuries, better results with packing, and effective arterial hemorrhage control with arteriographic embolization. CONCLUSIONS: The treatment and outcome of liver injuries have changed dramatically in 25 years. Multiple modes of therapy are available for hemorrhage control, which has improved outcome.

Cause of Death↗