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Ram D, Amir E, Keren R, Shapira J, Davidovich E. Mandibular block or maxillary infiltration: does it influence children's opposition to a subsequent dental visit? J Clin Pediatr Dent 2012; 36:245-9. [PMID: 22838225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
PURPOSE Local anesthesia by mandibular block or maxillary infiltration is commonly administered to children receiving dental treatment of primary molars. Discomfort, when presenting, most often involves the lower lip. The purpose of this study was to investigate whether children would be more opposed to attending a dental treatment following anesthesia by mandibular block than by maxillary infiltration. METHODS Each of 102 children in two age groups: 3 to 5 years, and 6 to 9 years, received the two types of local anesthesia at dental appointments one week apart. Their opposition to attending a subsequent appointment was assessed by parent report. RESULTS More adverse reactions were observed during and following anesthesia with mandibular block than with maxillary infiltration. Few of the children in either age group expressed opposition to attend a dental visit after receiving mandibular block or maxillary infiltration in the previous visit. CONCLUSIONS Though more adverse reactions were observed in children following mandibular block than maxillary infiltration, this did not result in increased opposition to attend a subsequent dental appointment.
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Affiliation(s)
- D Ram
- Department of Pediatric Dentistry, The Hebrew University Hadassah School of Dental Medicine, Jerusalem, Israel.
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Aplenc R, Fisher BT, Huang YS, Li Y, Alonzo TA, Gerbing RB, Hall M, Bertoch D, Keren R, Seif AE, Sung L, Adamson PC, Gamis A. Merging of the National Cancer Institute-funded cooperative oncology group data with an administrative data source to develop a more effective platform for clinical trial analysis and comparative effectiveness research: a report from the Children's Oncology Group. Pharmacoepidemiol Drug Saf 2012; 21 Suppl 2:37-43. [PMID: 22552978 PMCID: PMC3359580 DOI: 10.1002/pds.3241] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE The National Cancer Institute-funded cooperative oncology group trials have improved overall survival for children with cancer from 10% to 85% and have set standards of care for adults with malignancies. Despite these successes, cooperative oncology groups currently face substantial challenges. We are working to develop methods to improve the efficiency and effectiveness of these trials. Specifically, we merged data from the Children's Oncology Group (COG) and the Pediatric Health Information Systems (PHIS) to improve toxicity monitoring, to estimate treatment-associated resource utilization and costs, and to address important clinical epidemiology questions. METHODS COG and PHIS data on patients enrolled on a phase III COG trial for de novo acute myeloid leukemia at 43 PHIS hospitals were merged using a probabilistic algorithm. Resource utilization summary statistics were then tabulated for the first chemotherapy course based on PHIS data. RESULTS Of 416 patients enrolled on the phase III COG trial at PHIS centers, 392 (94%) were successfully matched. Of these, 378 (96%) had inpatient PHIS data available beginning at the date of study enrollment. For these, daily blood product usage and anti-infective exposures were tabulated and standardized costs were described. CONCLUSIONS These data demonstrate that patients enrolled in a cooperative group oncology trial can be successfully identified in an administrative data set and that supportive care resource utilization can be described. Further work is required to optimize the merging algorithm, map resource utilization metrics to the National Cancer Institute Common Toxicity Criteria for monitoring toxicity, to perform comparative effectiveness studies, and to estimate the costs associated with protocol therapy.
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MESH Headings
- Adolescent
- Child
- Child Health Services/economics
- Child Health Services/standards
- Child Health Services/statistics & numerical data
- Child, Preschool
- Clinical Trials, Phase III as Topic/economics
- Clinical Trials, Phase III as Topic/standards
- Clinical Trials, Phase III as Topic/statistics & numerical data
- Comparative Effectiveness Research
- Cooperative Behavior
- Costs and Cost Analysis
- Female
- Hospitals, Pediatric
- Humans
- Infant
- Male
- Medical Oncology/economics
- Medical Oncology/organization & administration
- Medical Oncology/standards
- Medical Oncology/statistics & numerical data
- Medical Oncology/trends
- Medical Record Linkage
- Medical Records Systems, Computerized/economics
- Medical Records Systems, Computerized/standards
- Medical Records Systems, Computerized/statistics & numerical data
- Medical Records Systems, Computerized/trends
- National Cancer Institute (U.S.)
- Neoplasms/economics
- Neoplasms/mortality
- Neoplasms/therapy
- Organizational Objectives
- Outcome and Process Assessment, Health Care
- United States
- Young Adult
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Affiliation(s)
- R Aplenc
- Children's Hospital of Philadelphia, Philadelphia, PA, USA.
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Salloway S, Sperling R, Keren R, Porsteinsson AP, van Dyck CH, Tariot PN, Gilman S, Arnold D, Abushakra S, Hernandez C, Crans G, Liang E, Quinn G, Bairu M, Pastrak A, Cedarbaum JM. A phase 2 randomized trial of ELND005, scyllo-inositol, in mild to moderate Alzheimer disease. Neurology 2011; 77:1253-62. [PMID: 21917766 DOI: 10.1212/wnl.0b013e3182309fa5] [Citation(s) in RCA: 174] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE This randomized, double-blind, placebo-controlled, dose-ranging phase 2 study explored safety, efficacy, and biomarker effects of ELND005 (an oral amyloid anti-aggregation agent) in mild to moderate Alzheimer disease (AD). METHODS A total of 353 patients were randomized to ELND005 (250, 1,000, or 2,000 mg) or placebo twice daily for 78 weeks. Coprimary endpoints were the Neuropsychological Test Battery (NTB) and Alzheimer's Disease Cooperative Study-Activities of Daily Living (ADCS-ADL) scale. The primary analysis compared 250 mg (n =84) to placebo (n =82) after an imbalance of infections and deaths led to early discontinuation of the 2 higher dose groups. RESULTS The 250 mg dose demonstrated acceptable safety. The primary efficacy analysis at 78 weeks revealed no significant differences between the treatment groups on the NTB or ADCS-ADL. Brain ventricular volume showed a small but significant increase in the overall 250 mg group (p =0.049). At the 250 mg dose, scyllo-inositol concentrations increased in CSF and brain and CSF Aβx-42 was decreased significantly compared to placebo (p =0.009). CONCLUSIONS Primary clinical efficacy outcomes were not significant. The safety and CSF biomarker results will guide selection of the optimal dose for future studies, which will target earlier stages of AD. CLASSIFICATION OF EVIDENCE Due to the small sample sizes, this Class II trial provides insufficient evidence to support or refute a benefit of ELND005.
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Affiliation(s)
- S Salloway
- Neurology and the Memory and Aging Program, Butler Hospital, 345 Blackstone Boulevard, Providence, RI 02906, USA.
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Abstract
OBJECTIVE To determine the accuracy of predischarge visual assessment of jaundice for estimating bilirubin concentration and predicting risk of significant neonatal hyperbilirubinaemia. DESIGN Prospective cohort study. SETTING Well Baby Nursery at the Hospital of the University of Pennsylvania. PATIENTS 522 term and late preterm newborns. INTERVENTIONS Nurses used a 5-point scale to grade the maximum cephalocaudal extent of jaundice prior to discharge. MAIN OUTCOME MEASURES (1) Correlation between jaundice grade and bilirubin concentration. (2) Predictive accuracy of jaundice grade for identifying infants who developed significant hyperbilirubinaemia, defined as a bilirubin level that at any time after birth exceeded or was within 1 mg/dl (17 micromol/l) of the American Academy of Pediatrics-recommended hour-specific phototherapy treatment threshold. RESULTS Nurses' assessment of jaundice extent was only moderately correlated with bilirubin concentration and was similar in black and non-black infants (Spearman's rho = 0.45 and 0.55, respectively (p = 0.13)). The correlation was particularly weak among infants <38 weeks' gestational age (rho = 0.29) compared with infants > or = 38 weeks' gestation (rho = 0.53, p = 0.05). Jaundice extent had poor overall accuracy for predicting risk of significant hyperbilirubinaemia (c-statistic = 0.65) but complete absence of jaundice had high sensitivity (95%) and excellent negative predictive value (99%) for ruling out the development of significant hyperbilirubinaemia. CONCLUSIONS Clinicians should not use extent of cephalocaudal jaundice progression to estimate bilirubin levels during the birth hospitalisation, especially in late preterm infants. However, the complete absence of jaundice can be used to predict with very high accuracy which infants will not develop significant hyperbilirubinaemia.
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Affiliation(s)
- R Keren
- Division of General Pediatrics and the Center for Pediatric Clinical Effectiveness, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA.
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Keren R. Questioning the evidence. CMAJ 2006. [DOI: 10.1503/cmaj.1060013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Abstract
BACKGROUND Inhaled corticosteroids (ICS) and sodium cromoglycate (SCG) have become established as effective controller medications for children and adults with asthma, but their relative efficacy is not clear. OBJECTIVES To compare the relative effectiveness and adverse effects of ICS and SCG among children and adults with chronic asthma. SEARCH STRATEGY Systematic search of the Cochrane Airways Group's special register of controlled trials (to Feb. 2004), hand searches of the reference lists of included trials and relevant review papers, and written requests for identification of additional trials from pharmaceutical manufacturers. SELECTION CRITERIA Randomized controlled trials comparing the effect of ICS with SCG in children and adults with chronic asthma. DATA COLLECTION AND ANALYSIS All studies were assessed independently for eligibility by three review authors. Disagreements were settled by consensus. Trial authors were contacted to supply missing data or to verify methods. Eligible studies were abstracted and fixed- and random-effects models were implemented to pool studies. Separate analyses were conducted for paediatric and adult studies. Subgroup analyses and meta-regression models were fit to explore heterogeneity of lung function outcomes by type of RCT, category of ICS or SCG dosage, asthma severity of participants, and study quality on outcomes. MAIN RESULTS Of 67 identified studies, 17 trials involving 1279 children and eight trials involving 321 adults with asthma were eligible. Thirteen (76%) of the paediatric studies and six (75%) of the adult studies were judged to be high quality. Among children, ICS were associated with a higher final mean forced expiratory volume in 1 second [FEV1] (weighted mean difference [WMD] 0.07 litres, 95% confidence interval [CI] 0.02 to 0.11) and higher mean final peak expiratory flow rate [PEF] (WMD 17.3 litres/minute, 95% CI 11.3 to 23.3) than SCG. In addition, ICS were associated with fewer exacerbations (WMD -1.18 exacerbations per year, 95% CI -2.15 to - 0.21), lower asthma symptom scores, and less rescue bronchodilator use than SCG. There were no group differences in the proportion of children with adverse effects. Among adults, ICS were similarly associated with a higher mean final FEV1 (WMD 0.21 litres, 95% CI 0.13 to 0.28) and a higher final endpoint PEF (WMD 28.2 litres/minute, 95% CI 18.7 to 37.6) than SCG. ICS were also associated with fewer exacerbations (WMD -3.30 exacerbations per year, 95% CI -5.62 to -0.98), lower asthma symptom scores among cross-over trials but not parallel trials, and less rescue bronchodilator use than SCG. There were no differences in the proportion of adults with adverse effects. In subgroup analyses involving lung function measures, paediatric and adult studies judged to be of high quality had results consistent with the overall results. Lung function measures in children were higher in studies with medium BDP-equivalent steroid dosages than low BDP-equivalent dosages, while adult studies could not be compared by steroid dosage since they all incorporated similar dosages. There were no significant differences in lung function by the asthma severity of participants for adult or child studies. AUTHORS' CONCLUSIONS ICS were superior to SCG on measures of lung function and asthma control for both adults and children with chronic asthma. There were few studies reporting on quality of life and health care utilization, which limited our ability to adequately evaluate the relative effects of these medications on a broader range of outcomes. Although there were no differences in adverse effects between ICS and SCG, most trials were short and may not have been of sufficient duration to identify long-term effects. Our results support recent consensus statements in the U.S. and elsewhere that favour the use of ICS over SCG for control of persistent asthma.
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Affiliation(s)
- J P Guevara
- University of Pennsylvania School of Medicine, Department of Pediatrics, The Children's Hospital of Philadelphia, 34th and Civic Center Blvd, Philadelphia, PA 19104, USA.
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Keren R, Bhutani VK, Luan X, Nihtianova S, Cnaan A, Schwartz JS. Identifying newborns at risk of significant hyperbilirubinaemia: a comparison of two recommended approaches. Arch Dis Child 2005; 90:415-21. [PMID: 15781937 PMCID: PMC1720335 DOI: 10.1136/adc.2004.060079] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS To compare the predictive performance of clinical risk factor assessment and pre-discharge bilirubin measurement as screening tools for identifying infants at risk of developing significant neonatal hyperbilirubinaemia (post-discharge total serum bilirubin (TSB) >95th centile). METHODS Retrospective cohort study of term and near term infants born in an urban community teaching hospital in Pennsylvania (1993-97). A clinical risk factor scoring system was developed and its predictive performance compared to a pre-discharge TSB expressed as a risk zone on a bilirubin nomogram. Main outcome measures were prediction model discrimination, range of predicted probabilities, and sensitivity, specificity, positive and negative predictive values, and likelihood ratios for various positivity criteria. RESULTS The clinical risk factor scoring system developed included birth weight, gestational age <38 weeks, oxytocin use during delivery, vacuum extraction, breast feeding, and combination breast and bottle feeding. The pre-discharge bilirubin risk zone had better discrimination (c = 0.83; 95% CI 0.80 to 0.86) than the clinical risk factor score (c = 0.71; 95% CI 0.66 to 0.76) and predicted risk of significant hyperbilirubinaemia as high as 59% compared with a maximum of 44% for the clinical risk factor score. Neither the risk score nor the pre-discharge TSB risk zone predicted the outcome with > or =0.98 sensitivity without significantly compromising specificity (0.13 and 0.21, respectively). Multi-level clinical risk factor scores and TSB risk zones produced likelihood ratios of 0.15-3.25 and 0.05-9.43, respectively. CONCLUSIONS The pre-discharge bilirubin expressed as a risk zone on an hour specific bilirubin nomogram is more accurate and generates wider risk stratification than a clinical risk factor score.
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Affiliation(s)
- R Keren
- Division of General Pediatrics, Pediatric Generalist Research Group, The Children's Hospital of Philadelphia, PA, USA.
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Agassi M, Tarchitzky J, Keren R, Chen Y, Goldstein D, Fizik E. Effects of prolonged irrigation with treated municipal effluent on runoff rate. J Environ Qual 2003; 32:1053-1057. [PMID: 12809306 DOI: 10.2134/jeq2003.1053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The use of domestic effluents for the irrigation of crops has been widespread in Israel for the past 30 years. The sodium adsorption ratio (SAR) of the standardized domestic effluents ranges between 4 and 6. According to the literature, when soils with SAR levels of 4 to 6 are exposed to direct raindrop impact they are subjected to enhanced aggregate disintegration, leading to sealing processes of the soil surface and subsequent increased runoff and soil erosion. However, these phenomena were not observed in the laboratory and field experiments of this study. On the other hand, a rapid decrease of the soil SAR to its initial values was observed, in laboratory and fieldwork, once the soil was subjected to a simulated rainstorm of distilled water (laboratory) or natural rainstorms (field plots). We can conclude that the process of SAR increase during irrigation with standardized effluent water is reversible. Further investigation in this direction can lead to recommendations regarding the necessary levels of domestic sewage water purification in correlation with soil types, climatic conditions, and hazards to tap water aquifers.
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Affiliation(s)
- M Agassi
- Soil Erosion Research Station, Soil Conservation and Drainage Division, Ministry of Agriculture, c/o Rupin Inst. Post 40250, Israel.
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Golz A, Goldenberg D, Ben-Arie Y, Keren R, Netzer A, Westerman ST, Joachims HZ. Basal cell adenocarcinoma of the parotid gland presenting as a retroauricular abscess. Am J Otolaryngol 2000; 21:421-6. [PMID: 11115531 DOI: 10.1053/ajot.2000.18879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- A Golz
- Department of Otolaryngology--Head and Neck Surgery, Technicon-Israel Institute of Technology, Haifa, Isreal
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Abstract
An unusual finding of Warthin's tumor or papillary cystadenoma lymphomatosum with ulceration of the overlying skin is described in a patient who refused surgical removal of this growth. The present article is the second case published in the English language dermatological literature on this fascinating tumor. To our knowledge, the clinical presentation and course of the disorder in this individual are unique.
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Affiliation(s)
- Z Abraham
- Department of Dermatology, Reish Policlinic, Haifa, Israel
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Keren R, Stark AA. Gamma-glutamyl transpeptidase-dependent mutagenicity and cytotoxicity of gamma-glutamyl derivatives: a model for biochemical targeting of chemotherapeutic agents. Environ Mol Mutagen 1998; 32:377-386. [PMID: 9882013 DOI: 10.1002/(sici)1098-2280(1998)32:4<377::aid-em12>3.0.co;2-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Many carcinomas in humans are rich in gamma-glutamyl transpeptidase (GGT), a plasma membrane enzyme that reacts with extracellular substrates. Thus, biochemical targeting of chemotherapeutic agents may be achieved by converting anticancer drugs into their gamma-glutamyl derivatives. Chemical conversion of phenylhydrazine (PH) and biochemical modification of daunomycin (DM) into their gamma-glutamyl derivatives gamma-glutamyl phenylhydrazine (GGPH) and gamma-glutamyl DM (GGDM) resulted in the abolishment of their mutagenicity and cytotoxicity, as judged by decreased viability and increased mutant yields in cultures of several Salmonella Ames strains. Commercial gamma-glutamyl-p-nitroanilide (GGPNA) was not toxic or mutagenic. Mutagenicity and/or cytotoxicity of these gamma-glutamyl derivatives were restored upon reaction with GGT, with concomitant release of PH, and p-nitroaniline (PNA). The GGT-dependent release of DM from GGDM was demonstrated by thin layer chromatography (TLC), spectral analysis, and specific mutagenicity. Mutagenicity and/or cytotoxicity of gamma-glutamyl derivatives increased in the presence of glycylglycine, a GGT activator, and decreased in the presence of serine-borate, a GGT inhibitor. GGDM retained considerable DNA binding capacity. Its inability to kill and mutagenize was due to altered transport properties. The results are compatible with the notion that gamma-glutamylation is a feasible method for biochemical targeting of drugs containing a primary amino group to GGT-rich tumors.
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Affiliation(s)
- R Keren
- Department of Biochemistry, Tel-Aviv University, Israel
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Abstract
OBJECTIVE To improve the accuracy of cytologic diagnosis in breast lesion aspirates that are cytologically suggestive of fibroadenoma (FA), exhibiting proliferating epithelial elements and bare nuclei but devoid of the typical stroma. STUDY DESIGN A retrospective study was conducted. All available cases (89) that were aspirated and reported as suggestive of FA between 1981 and 1991 and were later biopsied were studied, and various morphologic criteria were analyzed in each smear. A control group consisted of 43 cases that were cytologically diagnosed as FA and confirmed histologically. RESULTS Two criteria contributed to the cytologically suggestive diagnosis of FA. The presence of numerous "multilayered" fragments of proliferating glandular epithelium improved the positive predictive value (PPV) for FA on the suggestive smear from 67.4% to 88.3%, and the presence of numerous bare nuclei in the background improved it to 88.9%. The combined presence of both criteria improved the PPV even further, to 91.7%. CONCLUSION When an aspirate from a breast lesion is cytologically suggestive of FA despite the absence of the typical stroma, a PPV of 91.7% can be achieved, provided that the epithelial elements include many "multilayered" fragments and that the background consists of numerous bare nuclei.
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Affiliation(s)
- E Malberger
- Department of Cytopathology, Rambam Medical Center, Haifa, Israel
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Moskovitz B, Malberger E, Keren R, Stein M, Kerner H, Bolkier M. Penile metastasis of testicular teratocarcinoma diagnosed by fine-needle aspiration. Isr J Med Sci 1992; 28:894-5. [PMID: 1286966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- B Moskovitz
- Department of Urology, Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
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Keren R, Aarons D, Veltri EP. Anxiety and depression in patients with life-threatening ventricular arrhythmias: impact of the implantable cardioverter-defibrillator. Pacing Clin Electrophysiol 1991; 14:181-7. [PMID: 1706503 DOI: 10.1111/j.1540-8159.1991.tb05088.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In order to assess the psychological responses to the automatic implantable cardioverter-defibrillator (AICD), 18 patients with a history of life-threatening ventricular arrhythmias were requested to complete the Spielberger State-Trait Anxiety Inventory and the Beck Depression Inventory. The patients were divided into three groups of six and matched for age, sex, underlying cardiac disease, ejection fraction, and NYHA Functional Classification. Group I had experienced conscious discharges from the AICD, group II had the AICD but without discharges, and group III without the AICD were treated with antiarrhythmic medications alone based on electrophysiological guided testing. Patients with the AICD were also requested to complete a questionnaire directed specifically at their experiences with the AICD. All of the 18 patients completed the study responses and results were analyzed by blinded review. There were no significant differences in anxiety and depression scores in the three groups studied, nor any significant differences in responses to the questionnaire in group I versus group II. One patient in group I reported experiencing adverse psychological responses to the AICD. Although there appears to be no significant differences in psychological responses as a result of the AICD implantation in patients with life-threatening ventricular arrhythmias, further study with larger patient groups is needed to identify and support patients who may develop adverse responses to the AICD.
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Affiliation(s)
- R Keren
- Department of Psychiatry, University of Maryland, Baltimore
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Abstract
Ga-67 scintigraphy is performed routinely in the anterior and posterior views. A lateral view in the cases presented here enabled differentiation between osteomyelitis and cellulitis.
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