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Engaging primary care patients with existing online tools for weight loss: A pilot trial. Obes Sci Pract 2022; 8:569-584. [PMID: 36238223 PMCID: PMC9535672 DOI: 10.1002/osp4.592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/29/2021] [Accepted: 01/18/2022] [Indexed: 11/11/2022] Open
Abstract
Objective Free online tools show potential for promoting weight loss at a low cost, but there is limited evidence about how to effectively engage patients with them. To address this, a low‐dose, flexible intervention was developed that aims to enhance weight‐related discussions with primary care providers (PCPs) and engage patients with an organic (i.e., not researcher‐created) weight loss‐focused social media community and online self‐monitoring tool. Feasibility and acceptability of the intervention was evaluated in a single‐arm, 12‐week pilot. Methods PCPs were recruited at two clinics, then PCP's patients with upcoming appointments were identified and recruited. Patients received an interactive online kickoff before their scheduled primary care appointment, then 8 follow‐up messages over 12 weeks via email or their electronic health record patient portal. Patients completed assessments at baseline, post‐appointment, and week 12. Primary care providers and patients completed semi‐structured interviews. Results All PCPs approached enrolled (n = 6); patient recruitment was on track to meet the study goal prior to COVID‐19 restrictions, and n = 27 patients enrolled. Patient satisfaction with the pre‐appointment kickoff was high. Twenty‐four patients reported discussing weight‐related topics at their primary care appointment and all were satisfied with the discussion. Twenty‐two patients completed 12‐week assessments. Of these, 15 reported engaging with the self‐monitoring tool and 9 with the social media community. Patient interviews revealed reasons for low social media community engagement, including perceived lack of fit. On average, patients with available data (n = 21) lost 2.4 ± 4.1% of baseline weight, and 28.6% of these patients lost ≥3% of baseline weight. Primary care providers reported high intervention satisfaction. Conclusions The intervention and trial design show potential, although additional strategies are needed to promote tool engagement.
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Observation of inverse Compton emission from a long γ-ray burst. Nature 2019; 575:459-463. [DOI: 10.1038/s41586-019-1754-6] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 10/18/2019] [Indexed: 11/09/2022]
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Bacterial colonization of drinking water: implications for an aging U.S. water infrastructure. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Swift and NuSTAR observations of GW170817: Detection of a blue kilonova. Science 2017; 358:1565-1570. [PMID: 29038371 DOI: 10.1126/science.aap9580] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 10/04/2017] [Indexed: 11/02/2022]
Abstract
With the first direct detection of merging black holes in 2015, the era of gravitational wave (GW) astrophysics began. A complete picture of compact object mergers, however, requires the detection of an electromagnetic (EM) counterpart. We report ultraviolet (UV) and x-ray observations by Swift and the Nuclear Spectroscopic Telescope Array of the EM counterpart of the binary neutron star merger GW170817. The bright, rapidly fading UV emission indicates a high mass (≈0.03 solar masses) wind-driven outflow with moderate electron fraction (Ye ≈ 0.27). Combined with the x-ray limits, we favor an observer viewing angle of ≈30° away from the orbital rotation axis, which avoids both obscuration from the heaviest elements in the orbital plane and a direct view of any ultrarelativistic, highly collimated ejecta (a γ-ray burst afterglow).
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[Development of an objective structured clinical examination (OSCE) for evaluating clinical competence in vascular medicine]. JOURNAL DE MÉDECINE VASCULAIRE 2017; 42:141-147. [PMID: 28705402 DOI: 10.1016/j.jdmv.2017.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 01/20/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVES Vascular medicine is now a clinical specialty in France. During their studies, students will acquire clinical reasoning in addition to technical skills. An Objective Structured Clinical Examination (OSCE) is considered as the gold standard for evaluating clinical competence. Our main objective was to evaluate the feasibility and acceptability of OSCE for the evaluation of students, secondarily their performance. METHODS Three representative clinical cases of the specialty were developed. The OSCE consisted of a sequence of clinical situations presented in three stations of 7minutes each. The role of the simulated patient was played by medical students. At the end of the OSCE, observers and students completed the evaluation form. We compared the performances between junior and senior vascular medicine students. Written questionnaires were used to measure OSCE satisfaction. RESULTS We were able to develop and organize this examination without difficulties. Fifteen students were evaluated. All participants agreed that the clinical situations were representative of vascular medicine practice, the cases were realistic and standardized patients were convincing. The performance of senior students was statistically higher than junior students in one case. DISCUSSION Our study demonstrates the feasibility and acceptability of the OSCE in students in vascular medicine. The small number of stations and candidates requires further studies on a larger scale to evaluate their performance.
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Interdependency and Heart Failure Self-Care Management. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Asymmetries in core-collapse supernovae from maps of radioactive 44Ti in Cassiopeia A. Nature 2014; 506:339-42. [PMID: 24553239 DOI: 10.1038/nature12997] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 12/13/2013] [Indexed: 11/09/2022]
Abstract
Asymmetry is required by most numerical simulations of stellar core-collapse explosions, but the form it takes differs significantly among models. The spatial distribution of radioactive (44)Ti, synthesized in an exploding star near the boundary between material falling back onto the collapsing core and that ejected into the surrounding medium, directly probes the explosion asymmetries. Cassiopeia A is a young, nearby, core-collapse remnant from which (44)Ti emission has previously been detected but not imaged. Asymmetries in the explosion have been indirectly inferred from a high ratio of observed (44)Ti emission to estimated (56)Ni emission, from optical light echoes, and from jet-like features seen in the X-ray and optical ejecta. Here we report spatial maps and spectral properties of the (44)Ti in Cassiopeia A. This may explain the unexpected lack of correlation between the (44)Ti and iron X-ray emission, the latter being visible only in shock-heated material. The observed spatial distribution rules out symmetric explosions even with a high level of convective mixing, as well as highly asymmetric bipolar explosions resulting from a fast-rotating progenitor. Instead, these observations provide strong evidence for the development of low-mode convective instabilities in core-collapse supernovae.
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MR assessment of lumbar disk herniation treated with oxygen-ozone diskolysis: the role of DWI and related ADC versus intervertebral disk volumetric analysis for detecting treatment response. Neuroradiol J 2013; 26:347-56. [PMID: 23859294 DOI: 10.1177/197140091302600316] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Accepted: 06/13/2013] [Indexed: 12/19/2022] Open
Abstract
We prospectively assessed the diagnostic criteria of morphologic MRI study (MMS) and the accuracy of DWI and related ADC values (DWI-ADC) versus intervertebral disk volumetric analysis (IDVA) for predicting shrinkage of lumbar disk herniation treated with oxygen-ozone (O2-O3) diskolysis. Sixty-eight patients (36 men and 32 women; mean age 39) with lumbosciatica underwent O2-O3 diskolysis. The six-month MRI follow-up was performed with FSE-T2 and T2-fat, SE-T1 and DWI-weighted images. IDVA was determined using OsiriX(®). Diagnostic criteria and accuracy were evaluated with regards to DWI and related ADC in detecting response to ozone therapy. Fifty-eight of 68 patients had successful outcomes (responders), whereas ten patients showed unsatisfactory outcomes (non-responders). MMS showed that a centrally located herniated disk and grade 1 nerve root compression were more common in the responder group (p < 0.05). DWI-ADC and IDVA showed statistically significant shrinkage in the sixth month of follow-up (p < 0.05) with a mean ADC value reduction of 2.10 × 10(-3) mm(2)/s +/- 0.19 SD in the second month of follow-up (p < 0.05). DWI-ADC had an accuracy of 0.81 in detecting response to therapy around the second month of follow-up. DWI-ADC appear to be useful adjuncts to MMS in the follow-up of patients undergoing O2-O3 diskolysis.
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Interpreting elevated fetal hemoglobin in pathology and health at the basic laboratory level: new and known γ- gene mutations associated with hereditary persistence of fetal hemoglobin. Int J Lab Hematol 2013; 36:13-9. [PMID: 23621512 DOI: 10.1111/ijlh.12094] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 03/13/2013] [Indexed: 11/26/2022]
Abstract
Fetal hemoglobin may be slightly or significantly elevated in post-natal life due to a number of causes. We report two novel mutations found on the promoter of the Aγ gene and summarize all common and rare determinants associated with hereditary persistence of fetal hemoglobin (HPFH) described thus far. Hematological and molecular analysis of the Aγ globin gene in two cases of HPFH. Comparison of the novel cases with all those described in the literature. We have found two novel mutations in three Italian patients with HbF values between 5.9% and 6.5% without an elevated HbA(2) and with normal hemoglobin parameters. In two probands (mother and son), a -197 C>T transition was observed, while in a single individual, a -113 A>G transition was present on the distal CCAAT box of the Aγ gene. As no other abnormalities were present in both γ-gene promoters and the changes are located on regulatory sequences, we may conclude that these mutations are responsible for the HPFH phenotype shown by the carriers. The laboratory should be able to discriminate between elevated HbF due to artifacts or to serious causes including bone marrow malignancies, aplastic anemia, and β-thalassemia major or recessive traits such as β-thalassemia minor, δβ-thalassemia, or nonpathological conditions induced by mutations or polymorphisms of the γ-gene promoters that may even be beneficial when present in patients with thalassemia major or sickle cell disease and, in particular, when these patients are treated with hydroxyurea.
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Isolation and molecular characterization of vancomycin-resistant Enterococcus faecium from swine in Michigan, USA. Zoonoses Public Health 2012; 60:319-26. [PMID: 22958312 DOI: 10.1111/zph.12008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In 2008, we identified vancomycin-resistant enterococci (VRE) in Michigan swine, which was the first report of VRE in livestock from North America. Continued sampling in 2009 and 2010 was conducted to determine whether VRE persisted in Michigan. In 2009, swine faecal and feed samples (n=56), county fair pig barn manure samples (n=9) and pooled Michigan State Fair pig barn manure samples (n=18) were screened for VRE. In 2010, swine faecal samples were collected from 26 county fairs (n=73) and nine commercial swine farms in six states (n=28). Recovered VRE isolates were molecularly evaluated by polymerase chain reaction, restriction fragment length polymorphism, pulsed-field gel electrophoresis (PFGE), S1 nuclease digestion and multilocus sequence typing (MLST). Six VRE isolates were identified in 2009 from the State Fair, and another six (8.2%) were recovered from the five county fairs in 2010. All 12 isolates were highly related to the first-reported VRE from Michigan swine: all were confirmed to be vancomycin-resistant Enterococcus faecium (VREf) carrying vanA gene on Tn1546 (Type D), were negative for IS1251, hyl and esp gene, carried a 150-160 kb megaplasmid, and have closely similar PFGE patterns with >80% similarity. Classified as ST5, ST6 or ST185 by MLST, all belong to the clonal complex 5, a strain recognized to be circulating among European pigs. This study reveals that VREf are widespread in Michigan swine and persist in the historical absence of the use of agricultural glycopeptides.
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Detection of methicillin-resistant Staphylococcus aureus (MRSA) in backyard pigs and their owners, Michigan, USA. Zoonoses Public Health 2011; 59:212-6. [PMID: 21914153 DOI: 10.1111/j.1863-2378.2011.01437.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) have been reported in commercially raised pigs and their human handlers, raising concerns of zoonotic transmission. To determine whether MRSA in backyard-raised pigs is commonly transmitted to their human owners, a matched study of this type of pigs and their owners was conducted in selected counties in Michigan. Nasal swabs from matched owner-pig pairs (n = 50 pairs) with a few unmatched pig (n = 3) and human (n = 4) samples were collected and processed using standard isolation and identification protocols. No matched owner-pig pair was found; however, MRSA was isolated from 1/54 (1.9%) human samples and 2/53(3.8%) of the pigs. The single human isolate was not strain type USA100-1100 by pulsed-field gel electrophoresis (PFGE), was sequence type (ST) 8 by multilocus sequence typing (MLST), possessed SCCmec type IVb and agr I and was negative for the Panton-Valentine leukocidin (PVL) toxin gene. The two pig isolates were indistinguishable by PFGE (not USA100-1100), and both isolates were ST5 by MLST, possessed SCCmec type III and agr II and were negative for the PVL gene. Persons raising backyard swine from the selected Michigan counties had MRSA carriage rates similar to that of the general US population, suggesting that their avocational pig exposure did not increase their risk of MRSA.
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Canadian Surgery Forum: Abstracts of presentations to the Annual Meetings of the Canadian Association of Bariatric Physicians and Surgeons, Canadian Association of General Surgeons, Canadian Association of Thoracic Surgeons, Canadian Hepato-Pancreato-Biliary Society, Canadian Society of Surgical Oncology, Canadian Society of Colon and Rectal Surgeons, London, Ont. Sept. 15-18, 2011. Can J Surg 2011; 54:S57-S104. [PMID: 35488394 PMCID: PMC3191910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023] Open
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Octreo-SPECT/CT imaging for accurate detection and localization of suspected neuroendocrine tumors. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF... 2008; 52:323-333. [PMID: 18480741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
AIM The aim of the present study was to prospectively evaluate the add value provided by [(111)In]DTPA-octreotide single-photon emission computed tomography/computed tomography (Octreo-SPECT/CT) with respect to [(111)In]DTPA-octreotide SPECT (Octreo-SPECT) in terms of diagnostic accuracy and localization of neuroendocrine tumors (NETs). METHODS Eighty-one consecutive patients with known or suspected NET underwent [(111)In]DTPA-octreotide scintigraphy using an integrated SPECT/low-energy-CT system (Infinia & Hawkeye; GE Medical Systems, Milwaukee, WI, USA). SPECT and fused SPECT/CT images were interpreted separately and a lesion-by-lesion analysis was performed with regard to classification (probability of NET graded on a 5-point scale) and localization of each abnormal focal tracer uptake. A subgroup analysis, distinguishing between abdominal and thoracic lesions, and a patient-by-patient analysis for likelihood of NET in each patient was also performed. Standard of reference for confirming presence or absence of NET was either histopathology or clinical/imaging follow-up data. The value of SPECT/CT imaging was assessed by ROC analysis and McNemar test. RESULTS A final diagnosis of NET was achieved in 43 out of 81 patients and a total of 169 areas (138 NET and 31 benign/physiological) with focal tracer uptake were included in the final lesion-by-lesion analysis. SPECT/CT imaging led to a significantly higher proportion of patients (75/81=92.6% vs 64/81=79%) and lesions (163/169=96.4% vs 138/169=81.1%) correctly classified vs SPECT alone. ROC analysis confirmed that Octreo-SPECT/CT performed significantly better than Octreo-SPECT for the detection of NET on both patient- and lesion-based analysis, improving especially evaluation of abnormal tracer uptake in the abdomen. Moreover, Octreo-SPECT/CT accurately localized 160/169 (94.7%) lesions, significantly higher than SPECT alone (77/169= 45.6%). CONCLUSIONS Octreo-SPECT/CT allows more accurate detection and localization of NETs than simple Octreo-SPECT, with major benefits for lesions located in the abdomen.
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Broadband observations of the naked-eye γ-ray burst GRB 080319B. Nature 2008; 455:183-8. [DOI: 10.1038/nature07270] [Citation(s) in RCA: 376] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2008] [Accepted: 07/11/2008] [Indexed: 11/09/2022]
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Synthesized esters of ferulic acid induce release of cytochrome c from rat testes mitochondria. J Bioenerg Biomembr 2007; 40:19-26. [PMID: 17899337 DOI: 10.1007/s10863-007-9097-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2007] [Accepted: 08/17/2007] [Indexed: 10/22/2022]
Abstract
Ferulic acid plays a chemopreventive role in cancer by inducing tumor cells apoptosis. As mitochondria play a key role in the induction of apoptosis in many cells types, here we investigate the mitochondrial permeability transition (MPT) and the release of cytochrome c induced by ferulic acid and its esters in rat testes mitochondria, in TM-3 and MLTC-1 cells. While ferulic acid, but not its esters, induced MPT and cytochrome c release in rat testes isolated mitochondria, in TM-3 cells we found that both ferulic acid and its esters induced cytochrome c release from mitochondria in a dose-dependent manner, suggesting a potential target of these compounds in the induction of cell apoptosis. The apoptosis induced by ferulic acid is therefore associated with the mitochondrial pathway involving cytochrome c release and caspase-3 activation.
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X-ray flares in early GRB afterglows. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2007; 365:1213-26. [PMID: 17293338 DOI: 10.1098/rsta.2006.1970] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The Swift X-ray Telescope (XRT) has discovered that flares are quite common in early X-ray afterglows of gamma-ray bursts (GRBs), being observed in roughly 50% of afterglows with prompt follow-up observations. The flares range in fluence from a few per cent to approximately 100% of the fluence of the prompt emission (the GRB). Repetitive flares are seen, with more than four successive flares detected by the XRT in some afterglows. The rise and fall times of the flares are typically considerably smaller than the time since the burst. These characteristics suggest that the flares are related to the prompt emission mechanism, but at lower photon energies. We conclude that the most likely cause of these flares is late-time activity of the GRB central engine.
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The effects of APOE and tau gene variability on risk of frontotemporal dementia. Neurobiol Aging 2006; 27:702-9. [PMID: 15904995 DOI: 10.1016/j.neurobiolaging.2005.03.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2004] [Revised: 02/22/2005] [Accepted: 03/09/2005] [Indexed: 11/18/2022]
Abstract
Frontotemporal dementia (FTD) is a complex dementing syndrome whose genetic/non genetic risk factors are mostly unknown. Aim of the present work was to investigate whether APOE and/or tau gene variability does affect the risk of FTD. A sample of FTD cases (sporadic: n = 54; familial: n = 46, one subject per family) was collected in a genetically homogeneous population (Calabria, southern Italy) and analyzed in comparison with an age- and sex-matched control group (n = 180) extracted from the same population. Logistic regression analysis showed that APOE gene variability affects the probability of disease, with allele epsilon4 increasing (exp(beta1) = 2.68 with [1.51-4.76] 95% confidence interval; p = 0.001) and allele epsilon2 decreasing (exp(beta1) = 0.28 with [0.12-0.66] 95% confidence interval; p = 0.003) the risk of FTD. On the contrary, tau gene variability was ineffectual (exp(beta1) non significantly different from 1 for either H1 or H2 haplotypes), although a small effect was observed by the H1 haplotype in increasing the protective effect of the epsilon2 allele (p = 0.007).
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A short γ-ray burst apparently associated with an elliptical galaxy at redshift z = 0.225. Nature 2005; 437:851-4. [PMID: 16208363 DOI: 10.1038/nature04142] [Citation(s) in RCA: 471] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2005] [Accepted: 08/10/2005] [Indexed: 11/08/2022]
Abstract
Gamma-ray bursts (GRBs) come in two classes: long (> 2 s), soft-spectrum bursts and short, hard events. Most progress has been made on understanding the long GRBs, which are typically observed at high redshift (z approximately 1) and found in subluminous star-forming host galaxies. They are likely to be produced in core-collapse explosions of massive stars. In contrast, no short GRB had been accurately (< 10'') and rapidly (minutes) located. Here we report the detection of the X-ray afterglow from--and the localization of--the short burst GRB 050509B. Its position on the sky is near a luminous, non-star-forming elliptical galaxy at a redshift of 0.225, which is the location one would expect if the origin of this GRB is through the merger of neutron-star or black-hole binaries. The X-ray afterglow was weak and faded below the detection limit within a few hours; no optical afterglow was detected to stringent limits, explaining the past difficulty in localizing short GRBs.
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Abstract
Gamma-ray burst (GRB) afterglows have provided important clues to the nature of these massive explosive events, providing direct information on the nearby environment and indirect information on the central engine that powers the burst. We report the discovery of two bright x-ray flares in GRB afterglows, including a giant flare comparable in total energy to the burst itself, each peaking minutes after the burst. These strong, rapid x-ray flares imply that the central engines of the bursts have long periods of activity, with strong internal shocks continuing for hundreds of seconds after the gamma-ray emission has ended.
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An unexpectedly rapid decline in the X-ray afterglow emission of long γ-ray bursts. Nature 2005; 436:985-8. [PMID: 16107840 DOI: 10.1038/nature03934] [Citation(s) in RCA: 208] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2005] [Accepted: 06/14/2005] [Indexed: 11/09/2022]
Abstract
'Long' gamma-ray bursts (GRBs) are commonly accepted to originate in the explosion of particularly massive stars, which give rise to highly relativistic jets. Inhomogeneities in the expanding flow result in internal shock waves that are believed to produce the gamma-rays we see. As the jet travels further outward into the surrounding circumstellar medium, 'external' shocks create the afterglow emission seen in the X-ray, optical and radio bands. Here we report observations of the early phases of the X-ray emission of five GRBs. Their X-ray light curves are characterised by a surprisingly rapid fall-off for the first few hundred seconds, followed by a less rapid decline lasting several hours. This steep decline, together with detailed spectral properties of two particular bursts, shows that violent shock interactions take place in the early jet outflows.
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Abstract
Three members of an Italian family with autosomal dominant dementia and multiple strokes had the A713T mutation of the APP gene. The neuropathologic examination of the proband disclosed Alzheimer disease (AD) with severe cerebral amyloid angiopathy and multiple infarcts. This indicates that the A713T mutation of the APP gene, lying at the gamma-secretase cleavage site, can be responsible for AD with symptomatic cerebral amyloid angiopathy.
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Role of interventional radiology in the management of vascular complications after liver transplantation. Transplant Proc 2004; 36:552-4. [PMID: 15110591 DOI: 10.1016/j.transproceed.2004.02.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The purpose of this study is to review the role of the percutaneous interventional procedures in the treatment of vascular complications after orthotopic liver transplantations (OLT). Vascular complications, such as arterial stenosis and venous thrombosis, which occur in approximately 1% to 10% of liver transplant patients, are associated with a higher risk of graft dysfunction. Percutaneous interventional procedures, including angioplasty, local thrombolysis, and embolization, are useful to manage these complications. A reduced blood loss and a low incidence of procedural complications allow for rapid recovery. Hepatic arterial and portal vein anastomotic stenosis can be treated effectively by means of balloon dilation; stenting has also been proposed, particularly for venous complications. Infusional local thrombolysis may be useful in venous thrombosis. Arteriovenous fistulas, occurring at the level of the anastomosis or after liver biopsy, require intraarterial embolization using microcoils or gelfoam. Timing of the intervention for the treatment of ischemic complications is of outmost importance to guarantee liver functional recovery and avoid irreversible parenchymal injuries. Other interventional procedures may be extremely useful to manage portal hypertension after OLT; for example, by creation of transjugular portosystemic shunts, or, in the case of associated hypersplenism, transarterial embolization of the splenic artery. Finally, in patients with recurrent hepatitis, the transjugular approach has been shown to be safe and effective for liver biopsy, whereas transarterial chemoembolization may be extremely useful to treat recurrent hepatocarcinoma.
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Minimal intervention programs for weight loss in heart transplant candidates: a preliminary examination. Prog Transplant 2003. [DOI: 10.7182/prtr.13.4.f32k5w0634816480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Frontotemporal dementia (FTD) displays significant neuropathological and genetic heterogeneity among and within affected families. An early diagnosis is often difficult because cognitive symptoms are manifest only at a late stage of the disease. We have been studying a large pedigree segregating frontotemporal dementia (FTD) to which belong 34 identified affected persons, 11 of whom were personally examined. The kindred has been genealogically reconstructed; all FTD patients have been linked to the same ancestors who lived in the early 18(th) century (11 generations before the present one). Autosomal dominant transmission was evident. Clinical features were uniform within the kindred and met the Lund-Manchester criteria. Personality changes with absence of insight, lack of empathy and of social awareness manifested up to 5 years before medical advice was sought. Loss of fluency was the earliest neuropsychological sign, in the absence of memory, orientation and praxis deficits, which evolved late, together with hyperorality. Akinesia was observed early, rigidity appeared late, tremor was absent. Two patients showed myoclonus late in their evolution. No ALS signs were observed in this kindred. Mutations of the MAPt gene, coding for the Tau protein, were not detected in affected family members. Linkage studies excluded chromosomes 3 and 9 and gave indeterminate results that were model dependent for chromosome 17.
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Prevalence of Staphylococcus aureus carriage among asymptomatic nursing home personnel: a pilot study. J Am Med Dir Assoc 2000; 1:159-63. [PMID: 12816554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
OBJECTIVES To determine the carriage rate of Staphylococcus aureus (SA), both methicillin sensitive, and methicillin resistant (MRSA), among employees of a nursing home in the absence of an epidemic. DESIGN Observational study. SETTING A 210-bed suburban skilled nursing facility with a low endemic rate of SA infection. PARTICIPANTS Seventy-three asymptomatic employees recruited in two waves. MEASUREMENT Nasal swabs were cultured for SA; DNA strain typing was performed on MRSA isolates from the first wave of recruits. RESULTS 21 of 73 (29%) cultures were positive for SA. Ten of these 21 (14% of participating employees) had nasal carriage of MRSA. MRSA carriage was not significantly correlated with age, duration of employment, or job type (clinical vs. non-clinical), and DNA strain typing suggested that employee carriage of MRSA was not the result of a common source. CONCLUSIONS Staphylococcus aureus nasal carriage is common among skilled nursing facility personnel, and MRSA accounts for a substantial proportion of SA carriage among employees, even in the absence of an epidemic. Further research is needed to determine whether the high SA carriage rates among employees reflects work place acquisition, and, if so, whether it poses a hazard to the employees. The low incidence of nosocomial MRSA infections around the time of the study suggests that with usual infection control practices (eg, hand washing), MRSA-colonized caregivers pose little risk to nursing facility residents.
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Abstract
Low molecular weight heparins (LMWHs) are increasingly being utilised as anticoagulants in healthcare settings. These agents offer several advantages over standard unfractionated heparin. Indications for LMWHs include deep vein thrombosis and pulmonary embolism prophylaxis, deep vein thrombosis treatment, use in coronary procedures associated with a high risk for bleeding, and in acute coronary syndromes. Prior to being added to formularies, LMWHs should be evaluated for efficacy, safety and economic benefits over other anticoagulants. Institutions should be prepared to conduct their own economic assessments in the absence of readily available studies. There is clear evidence that LMWHs are cost saving or are at least cost effective as thromboprophylactic agents in major orthopaedic surgery. The economic benefits of LMWHs in other surgical situations is less clear. Consistent evidence from several countries indicate that LMWHs are cost saving as anticoagulants for the initial treatment of DVT. Further studies are needed to evaluate the efficacy, safety and economics of LMWHs in other conditions besides hip and knee arthroplasty and general surgery.
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Abstract
Since the first experiences with direct-to-consumer (DTC) prescription drug advertising in the early 1980s, pharmaceutical marketers, government regulators, researchers, health practitioners, and consumers have been both perplexed and intrigued by this practice. As experience with DTC advertising has expanded, so has knowledge and understanding of its risks and rewards. This article discusses important issues in DTC advertising, such as the effects it may have on the patient-practitioner relationship, the diffusion and adoption of new drugs, prices, and competition. It also discusses the future of DTC advertising.
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Health care triage alternatives and the influence of health insurance, education and race. PATIENT EDUCATION AND COUNSELING 1996; 28:287-296. [PMID: 8852104 DOI: 10.1016/0738-3991(96)00855-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The relationship between one of Andersen's enabling factors, health insurance status and the choice of a pharmacist as the initial contact in the health care system was examined via telephone surveys. Eighty-seven percent of the sample reported having some form of health insurance. Of all intended health care provider contacts, pharmacists were selected as the initial contact 21% of the time. Logistic regression identified insurance status, education and race as significant (alpha < 0.05) covariates in the model. The odds ratios generated from the logit model indicated that non-whites, persons with less education and no health insurance were more likely to select a pharmacist for triage. The study concluded that uninsured persons were nearly twice as likely to seek pharmacist triage than insured individuals. Pharmacists may be filling an important triage gap for individuals who have limited financial access to traditional sources of physician care.
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Abstract
Two separate studies were conducted in Georgia for this investigation. The first study measured by observation, pharmacists' compliance with the mandates of the Omnibus Budget Reconciliation Act of 1990 (OBRA '90) before (December 1992) and after (June 1993) the law took effect in January 1993. The second assessed patient awareness, experience, and degree of cooperation with pharmacists in complying with OBRA '90. Eight chain and four independent pharmacies were recruited for the first study. For the second, a representative sampling of patients answered questions by telephone. Findings from the pharmacy study indicated more streamlined information gathering, more time devoted to prospective drug utilization review, and a 29% increase in counseling frequency in the post-OBRA '90 period. Some changes may be due to increased computer sophistication. The patient survey indicated a lower frequency of counseling than was reported in the pharmacy study. Patients appeared willing to supply information to pharmacists when patients viewed it as a way to improve the care they receive.
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Randomized comparative trial with ampicillin/sulbactam versus cefamandole in the therapy of community acquired pneumonia. Eur J Clin Microbiol Infect Dis 1994; 13:293-8. [PMID: 8070432 DOI: 10.1007/bf01974603] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In a randomized prospective study ampicillin/sulbactam and cefamandole were compared in the therapy of patients hospitalized with community acquired pneumonia. Patients receiving ampicillin/sulbactam (n = 37) and cefamandole (n = 38) were similar with respect to age (mean age 70 vs. 76 years respectively), clinical characteristics, severity of illness and underlying disease. Pathogens isolated from patients in the cefamandole and ampicillin/sulbactam group, respectively, were Streptococcus pneumoniae (7 vs. 7 patients), Haemophilus parainfluenzae (7 vs. 6 patients), Haemophilus influenzae (5 vs. 5 patients), Staphylococcus aureus (5 vs. 4 patients), Escherichia coli (4 vs. 4 patients), Klebsiella pneumoniae (3 vs. 3 patients), Enterobacter spp. (2 vs. 3 patients), Moraxella catarrhalis (1 vs. 2 patients), and organisms of the oral flora (4 vs. 3 patients). The rate of resistance to penicillin was 80%, to clindamycin 76%, to erythromycin 45%, to ampicillin 43%, and to cefazolin 18%. Overall successful treatment rates of 81% for cefamandole and 97% for ampicillin/sulbactam (p = 0.05) were observed. Both cefamandole and ampicillin/sulbactam were shown to be effective agents for therapy of community acquired pneumonia; however ampicillin/sulbactam demonstrated superior overall clinical efficacy.
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[New therapeutic trends in thalassemia: oral chelating agents]. LA PEDIATRIA MEDICA E CHIRURGICA 1992; 14:273-5. [PMID: 1528794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The future therapeutic strategy for decreasing iron overload in poly-transfused patients will include oral chelation. The product currently undergoing the most intensive experimentation is Ll (1,2-dimethyl-3-hydroxypyrid-4-one). We report here a short-term efficacy study carried out in 10 thalassemic transfusion-dependent pediatric volunteer patients, already closely followed in our Day Hospital, after having provided their informed consent. In our study Ll, when compared to Desferrioxamine, was clearly efficacious and safe.
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[Pulmonary hemosiderosis induced by cow's milk proteins: a discussion of a clinical case]. LA PEDIATRIA MEDICA E CHIRURGICA 1992; 14:203-7. [PMID: 1508757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Pulmonary hemosiderosis (PH), a rare pathology, usually occurring during infancy and childhood, is characterized by numerous and repeated intra-alveolar bleedings, interstitial iron build-up with consequent progressive fibrosis and severe anemia. PH can be basically divided into 3 different categories: Primitive or idiopathic, involving a primitive deficit of antioxidizing enzymes in the erythrocytes in genetically predisposed subjects; Secondary, subsequent to chronic pneumopathy or cardiopathy; Associated with various pathologies including collagenopathies, glomerulonephritis, myocardiopathies, diabetes, steatorrhea, tireotossicosis. A particular type of Pulmonary Hemosiderosis, associated with allergy to cow's milk, has been described for the first time by Heiner. We present in this paper our personal experience of a young patient suffering from pulmonary hemosiderosis induced by cow's milk protein.
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Abstract
Many survey instruments measure health-related quality of life. Researchers can choose from instruments ranging in length from one to several hundred items. A small sample of 35 chronically ill adults self-administered the Short-form General Health Survey of the Medical Outcomes Study, a 20-item health-related quality-of-life measure with established reliability and validity. One specific item on the MOS questionnaire can serve as a single-item measure of health-related quality of life. This one item correlated positively and significantly with the over-all score for health-related quality of life. The results of this analysis support the use of this single-item measure of health-related quality of life when multiple-item instruments are not suitable due to limitations of resources or sample size.
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[Iron deficiency in children: which is the correct therapy?]. LA PEDIATRIA MEDICA E CHIRURGICA 1991; 13:149-53. [PMID: 1896380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Iron is essential for human metabolism. Under normal circumstances its homeostasis is strictly kept by absorption and excretion through genitourinary, gastrointestinal tracts and skin losses. In several systemic disorders, dietary iron is insufficient to keep such a dynamic balance: development of iron deficiency may be due to increased requirements, decreased intestinal absorption, inadequate dietary uptake. Low birth weight newborns, children and adolescents are at increased risk for developing iron deficiency. Although clinical aspects may vary, hematochemical findings show a three-step gradual progression. In a first step iron deficiency is diagnosed by serum ferritin level which will be under 10-20/micrograms/ml showing a depletion of total body iron stores. In a second step progressing iron deficiency will be assessed by lowered serum iron and increased unsaturated serum transferrin, serum iron bound to transferrin and erythrocyte protoporphyrin IX. Scanty clinical signs are still available. In a third step while clinical findings show a complete features of iron deficiency anemia (weakness, fatigue, palpitations, etc.), laboratory findings show morphologic alterations in red cells (hypochromia and microcytemia), together with the aforementioned disorders in ferrokinetics. Iron deficiency anemia responds very effectively to treatment due a correct etiological diagnosis, crucial to a through therapy tending to first eliminating the causes of it. Prophylaxis against iron deficiency anemia is required in prematurely born and low birth weight infants because of doubled iron requirements. After the second month of life diet is supplemented with 2-4 mg/kg/die of ferrous iron orally along the first year of life.
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[Meningococcal sepsis and DIC in childhood: a report of a clinical case]. LA PEDIATRIA MEDICA E CHIRURGICA 1991; 13:91-3. [PMID: 2052463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Disseminated intravascular coagulation (DIC) is a frequent complication of meningococcal sepsis in children. The clinical course variability, the severity of manifestations and the need of an early diagnosis for appropriate treatment, guides us to report a case of meningococcal sepsis and DIC. The patient, male, prematurely born, 11 months years old, presented himself with high fever of sudden onset, malaise, diarrhea, diffuse skin rash with abdominal petechiae, and no clinical evidence of meningitidis. Initial hematochemical findings, peripheral leukocytosis, quantitative and qualitative changes in plasma coagulation factors, liquoral hypocellularity together with the development of signs of meningeal irritation (stiff neck and back) were considered diagnostic clues for meningococcal sepsis associated with DIC. A gram-negative diplococcus was cultured from liquor. Primary goals of the treatment of this life-threatening clinical picture were the elimination of the bacterial component, the correction of clotting disorders and careful control of shock and metabolic acidosis often related with DIC. The patient then received a wide spectrum Cephalosporin, fresh frozen plasma, appropriate electrolyte solutions and eventually heparin, which led to a complete control and resolution of symptomatology.
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Georgia consumers' awareness and perceptions of generic drugs after the scandals. AMERICAN PHARMACY 1990; NS30:33-6. [PMID: 2239688 DOI: 10.1016/s0160-3450(16)33606-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Hospital nurses' use of and satisfaction with sources of drug-related information. AMERICAN JOURNAL OF HOSPITAL PHARMACY 1989; 46:2052-3. [PMID: 2816961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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An experimental intervention: stimulating patient requests for generic prescription medications. JOURNAL OF PHARMACEUTICAL MARKETING & MANAGEMENT 1988; 3:21-36. [PMID: 10295632 DOI: 10.3109/j058v03n04_03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This experiment tested the effect of an informational radio advertising intervention on consumer attitudes toward generic medications, consumer attitudes toward the advertising of generic medicines, and the potential for consumers to request generic substitutes for their prescriptions in the future. The informational themes of the advertising intervention included price, quality, product availability, safety, and the role of the pharmacist in drug product selection. Results indicated 28% of the 205 radio station listeners surveyed were able to recall the generic ads. The attitudes of respondents indicating recall of the advertisements were no different from those of respondents unable to recall the advertisements. Consumer attitudes toward generics and the advertising of generic medicines were favorable. Most consumers (73%) thought that subjects such as generic medications should be advertised more often. Many consumers (50%) indicated they would like to hear more ads about generic medications. Patients believed the ads provided information they have a right to know (83%) and information that would be useful to them (77%). Consumers thought generic drugs were just as safe (67%) and effective (62%) as brand name medications. Consumers who recalled the ads were significantly (p less than .05) more likely to indicate they would ask their pharmacists about generic medications on their next prescriptions. This implies that the informational advertising intervention may have been effective in stimulating patient requests for generics in the future.
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Pharmacy newsletters--the journalistic approach. Hosp Pharm 1988; 23:974-5. [PMID: 10290756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Pharmacy newsletters are an important communication tool for the majority of pharmacy operations across the country. They are used by pharmacists for basically two purposes: 1) to disseminate information to physicians, nurses and other hospital staff; and 2) for public relations. An enormous amount of time is spent by pharmacists in preparing newsletters but their effectiveness with respect to the above two purposes may vary from hospital to hospital. It is believed that a journalistic approach to the creation and publication of pharmacy newsletters can increase their effectiveness and acceptance by the hospital staff.
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Consumer reaction to a direct-to-consumer prescription drug advertising campaign. JOURNAL OF HEALTH CARE MARKETING 1988; 8:66-9. [PMID: 10287907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
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Job-related stress experienced by hospital pharmacists and nurses. AMERICAN JOURNAL OF HOSPITAL PHARMACY 1988; 45:1342-5. [PMID: 3414703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Pharmacists' and nurses' perceptions of job-related stress and its relationship to career satisfaction were surveyed. A questionnaire was developed and mailed in 1987 to pharmacists and nurses whose names were randomly selected from national mailing lists. Subjects were asked to rate, on a five-point scale (4 = very often), how often they found 39 situations to be stressful. The first 30 situations composed the Health Professions Stress Inventory (HPSI), which was created for this study; the remaining nine questions were included for validation of the HPSI. Respondents were also asked whether they would choose the same profession again. Usable questionnaires were returned by 107 pharmacists and 263 nurses practicing in hospitals. Of the potentially highest stress score of 120, overall mean scores were significantly higher for nurses (63) than for pharmacists (57). Statistical analysis indicated that the sample size was adequate and the HPSI was valid and reliable. Both pharmacists and nurses found situations that dealt with interruptions, poor opportunities for advancement, inadequate staffing levels, excessive workload, and inadequate pay to be the most stressful. Pharmacists viewed not feeling challenged as a significantly more stressful situation than did nurses. Career satisfaction was significantly related to job stress for both pharmacists and nurses; 45% of the pharmacists and 37% of the nurses said they would not choose the same profession again, and those with the highest scores on the stress scale were least likely to choose the same profession again. These hospital nurses and pharmacists reported moderate job-related stress.(ABSTRACT TRUNCATED AT 250 WORDS)
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Impact of computerization on clinical pharmacy services in South Atlantic states. AMERICAN JOURNAL OF HOSPITAL PHARMACY 1988; 45:333-6. [PMID: 3364431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The impact of computerization on clinical pharmacy services in the South Atlantic region was surveyed. Questionnaires were mailed to 350 hospital pharmacy directors in March 1987. The survey assessed type of computer system, degree of computerization, years computerized, hospital bed capacity, occupancy rate, staffing, presence of a clinical coordinator, and type of clinical services. For analysis of the relationship between clinical services and computerization, only responses indicating an increase in the number of clinical services since 1982 were used. Respondents were asked to rank, in order of importance, factors that they believed enabled clinical services to be increased. The survey response rate was 52.2%, with 179 of 343 usable replies received. The results indicate that there is a link between computerization and clinical services. Computerized pharmacies offered more services on average than did noncomputerized pharmacies. However, the differences in the types of services offered between computerized and noncomputerized pharmacies were not significant. Of the different means of increasing services, pharmacy directors ranked increasing professional staff the most important, followed by increased responsibility of technical staff, computerization, increasing technical staff, hiring a clinical coordinator, and other methods. Pharmacy directors interested in increasing the numbers of clinical services offered at their institutions should consider organizational factors such as departmental structure and number and types of personnel in conjunction with computerization.
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Estimating demand for health information: pharmacy counseling services. JOURNAL OF HEALTH CARE MARKETING 1987; 7:33-40. [PMID: 10285775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Consumers want more information about their health care. Before giving more information, health care providers need valid, reliable estimates of the amounts consumers will pay for health information. Using the example of pharmacist counseling services, the authors demonstrate a method for developing, estimates of consumer demand for health information.
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