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Litteral V, Migliozzi R, Metzger D, McPherson C, Saldanha R. Engineering a Cortisol Sensing Enteric Probiotic. ACS Biomater Sci Eng 2023; 9:5163-5175. [PMID: 37647169 DOI: 10.1021/acsbiomaterials.2c01300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Chronic stress can lead to prolonged adrenal gland secretion of cortisol, resulting in human ailments such as anxiety, post-traumatic stress disorder, metabolic syndrome, diabetes, immunosuppression, and cardiomyopathy. Real time monitoring of chronic increases in cortisol and intervening therapies to minimize the physiological effects of stress would be beneficial to prevent these endocrine related illnesses. Gut microbiota have shown the ability to secrete, respond, and even regulate endocrine hormones. One such microbe, Clostridium scindens, responds transcriptionally to cortisol. We engineered these cortisol responsive genetic elements from C. scindens into an enteric probiotic, E. coli Nissle 1917, to drive the expression of a fluorescent reporter allowing for the designing, testing, and building of a robust and physiologically relevant novel cortisol probiotic sensor. This smart probiotic was further engineered to be more sensitive and to respond to elevated cortisol by expressing tryptophan decarboxylase, thereby bestowing the ability to generate tryptamine and serotonin. Here we show that upon cortisol treatment the smart probiotic produces measurable amounts of tryptamine. Accumulated levels of these neuromodulators should improve mood, anxiety, and depression and drive down cortisol levels. Importantly, this work can serve as a model for the engineering of a sense-and-respond probiotic to modulate the gut-brain axis.
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Affiliation(s)
- Vaughn Litteral
- UES Corporation, 4401 Dayton-Xenia Avenue, Beavercreek, Ohio 45432-1805, United States
- Air Force Research Laboratory, 711 Human Performance Wing, Airman Bioengineering Division, Applied Biotechnology Branch, Wright-Patterson Air Force Base, Ohio 45433, United States
| | - Rebecca Migliozzi
- UES Corporation, 4401 Dayton-Xenia Avenue, Beavercreek, Ohio 45432-1805, United States
- Air Force Research Laboratory, 711 Human Performance Wing, Airman Bioengineering Division, Applied Biotechnology Branch, Wright-Patterson Air Force Base, Ohio 45433, United States
| | - David Metzger
- UES Corporation, 4401 Dayton-Xenia Avenue, Beavercreek, Ohio 45432-1805, United States
- Air Force Research Laboratory, 711 Human Performance Wing, Airman Bioengineering Division, Applied Biotechnology Branch, Wright-Patterson Air Force Base, Ohio 45433, United States
| | - Craig McPherson
- UES Corporation, 4401 Dayton-Xenia Avenue, Beavercreek, Ohio 45432-1805, United States
- Air Force Research Laboratory, 711 Human Performance Wing, Airman Bioengineering Division, Applied Biotechnology Branch, Wright-Patterson Air Force Base, Ohio 45433, United States
| | - Roland Saldanha
- Air Force Research Laboratory, 711 Human Performance Wing, Airman Bioengineering Division, Applied Biotechnology Branch, Wright-Patterson Air Force Base, Ohio 45433, United States
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Cameron TA, Schaughency E, Taumoepeau M, McPherson C, Carroll JLD. School-entry skills and early skill trajectories predict reading after 1 year. Sch Psychol 2023; 38:199-214. [PMID: 37053426 DOI: 10.1037/spq0000544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Oral language and early literacy skills are theorized to provide the foundation for reading acquisition. To understand these relations, methods are needed that depict dynamic skill development in the context of reading acquisition. We modeled contributions of school-entry skills and early skill trajectories to later reading with 105 5-year-old children beginning primary school and formal literacy instruction in New Zealand. Children were assessed at school-entry (Preschool Early Literacy Indicators), followed every fourth school week over their first 6 months of school (five probes of First Sound Fluency, Letter Sound Fluency, and New Zealand Word Identification Fluency: Year 1), and after 1 year of school (researcher-administered and school-used indices of literacy-related skills and reading progress). Modified latent change score (mLCS) modeling was used to describe skill development from repeated progress-monitoring data. Ordinal regression and structural equation modeling (path analyses) indicated skills at school-entry and early learning trajectories, indexed by mLCS, predicted children's early literacy progress. Results have implications for research and screening in beginning reading, supporting school-entry screening and progress monitoring of early literacy skills in beginning reading acquisition. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Warren VE, McPherson C, Giorli G, Goetz KT, Radford CA. Marine soundscape variation reveals insights into baleen whales and their environment: a case study in central New Zealand. R Soc Open Sci 2021; 8:201503. [PMID: 33959320 PMCID: PMC8074962 DOI: 10.1098/rsos.201503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Baleen whales reliably produce stereotyped vocalizations, enabling their spatio-temporal distributions to be inferred from acoustic detections. Soundscape analysis provides an integrated approach whereby vocal species, such as baleen whales, are sampled holistically with other acoustic contributors to their environment. Acoustic elements that occur concurrently in space, time and/or frequency can indicate overlaps between free-ranging species and potential stressors. Such information can inform risk assessment framework models. Here, we demonstrate the utility of soundscape monitoring in central New Zealand, an area of high cetacean diversity where potential threats are poorly understood. Pygmy blue whale calls were abundant in the South Taranaki Bight (STB) throughout recording periods and were also detected near Kaikōura during autumn. Humpback, Antarctic blue and Antarctic minke whales were detected in winter and spring, during migration. Wind, rain, tidal and wave activity increased ambient sound levels in both deep- and shallow-water environments across a broad range of frequencies, including those used by baleen whales, and sound from shipping, seismic surveys and earthquakes overlapped in time, space and frequency with whale calls. The results highlight the feasibility of soundscape analysis to quantify and understand potential stressors to free-ranging species, which is essential for conservation and management decisions.
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Affiliation(s)
- Victoria E. Warren
- Institute of Marine Science, Leigh Marine Laboratory, University of Auckland, 160 Goat Island Road, Leigh 0985, New Zealand
- National Institute of Water and Atmospheric Research, 301 Evans Bay Parade, Hataitai, Wellington 6021, New Zealand
| | - Craig McPherson
- JASCO Applied Sciences (Australia) Pty Ltd, 14 Hook Street, Unit 1, Capalaba QLD 4157, Australia
| | - Giacomo Giorli
- National Institute of Water and Atmospheric Research, 301 Evans Bay Parade, Hataitai, Wellington 6021, New Zealand
| | - Kimberly T. Goetz
- National Institute of Water and Atmospheric Research, 301 Evans Bay Parade, Hataitai, Wellington 6021, New Zealand
- National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center, National Marine Mammal Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115, USA
| | - Craig A. Radford
- Institute of Marine Science, Leigh Marine Laboratory, University of Auckland, 160 Goat Island Road, Leigh 0985, New Zealand
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Jeyashanmugaraja GP, Stawiarski K, Borkovich M, McPherson C. NORMAL TROPONIN IN SUPRAVENTRICULAR TACHYCARDIA MAY BE A NEGATIVE STRESS TEST. J Am Coll Cardiol 2020. [DOI: 10.1016/s0735-1097(20)31055-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Lau FD, McPherson C, Akanya D. NARROW COMPLEX TACHYCARDIA IS NOT ALWAYS SUPRAVENTRICULAR. J Am Coll Cardiol 2020. [DOI: 10.1016/s0735-1097(20)33849-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Roy T, Stawiarski K, Lancaster G, stuart zarich, McPherson C. EXTREME ECG AND TROPONIN ABNORMALITIES IN DIABETIC KETOACIDOSIS IN THE ABSENCE OF AN ACUTE CORONARY SYNDROME. Chest 2019. [DOI: 10.1016/j.chest.2019.08.381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Giorli G, Goetz KT, Delarue J, Maxner E, Kowarski KA, Bruce Martin S, McPherson C. Unknown beaked whale echolocation signals recorded off eastern New Zealand. J Acoust Soc Am 2018; 143:EL285. [PMID: 29716304 DOI: 10.1121/1.5032127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The echolocation signals of most beaked whale species are still unknown. In fact, out of the 22 species comprising the family Ziphiidae, only the echolocation pulses for 7 species have been clearly described. This study describes two distinct beaked whale echolocation signals recorded in the Cook Strait region using passive acoustic technology. These signals differ from previously described Ziphiid species clicks. A description of the time-frequency characteristics of the two signals is provided. Understanding the characteristics of these signals is necessary to correctly identify species from their echolocation signals and enables future monitoring of beaked whales using passive acoustics techniques.
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Affiliation(s)
- Giacomo Giorli
- National Institute of Water and Atmospheric Research, 301 Evans Bay Parade, Hataitai, Wellington 6021, New Zealand ,
| | - Kimberly T Goetz
- National Institute of Water and Atmospheric Research, 301 Evans Bay Parade, Hataitai, Wellington 6021, New Zealand ,
| | - Julien Delarue
- JASCO Applied Sciences Ltd., 202-32 Troop Avenue, Dartmouth, Nova Scotia B3B 1Z1, Canada , , ,
| | - Emily Maxner
- JASCO Applied Sciences Ltd., 202-32 Troop Avenue, Dartmouth, Nova Scotia B3B 1Z1, Canada , , ,
| | - Katie A Kowarski
- JASCO Applied Sciences Ltd., 202-32 Troop Avenue, Dartmouth, Nova Scotia B3B 1Z1, Canada , , ,
| | - Steven Bruce Martin
- JASCO Applied Sciences Ltd., 202-32 Troop Avenue, Dartmouth, Nova Scotia B3B 1Z1, Canada , , ,
| | - Craig McPherson
- JASCO Applied Sciences Pty Ltd., 14 Hook Street, Unit 1, Capalaba Queensland 4157, Australia
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Adeel M, Sharif F, Galvin J, McPherson C. UNUSUAL PRESENTATION OF CONGENITAL LONG QT SYNDROME. J Am Coll Cardiol 2018. [DOI: 10.1016/s0735-1097(18)33154-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Stawiarski K, Axiyan M, McPherson C. Stemi Management in a Patient With Anemia and Occult GI Bleeding: What is the Best Option? Chest 2017. [DOI: 10.1016/j.chest.2017.08.126] [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: 12/01/2022] Open
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10
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Chkhikvadze T, McPherson C. What is the Optimal Method to Measure the QT Interval Over Time? Chest 2017. [DOI: 10.1016/j.chest.2017.08.094] [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: 11/30/2022] Open
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Abstract
Geotechnical site investigations prior to marine construction typically involve shallow, small-core drilling and standard penetration testing (SPT), during which a small tube is hammered into the ground at the bottom of the borehole. Drilling (120 kW, 83 mm diameter drillbit, 1500 rpm, 16-17 m drill depth in sand and mudstone) and SPT (50 mm diameter test tube, 15 mm wall thickness, 100 kg hammer, 1 m drop height) by a jack-up rig in 7-13 m of water were recorded with a drifting hydrophone at 10-50 m range. Source levels were 142-145 dB re 1 μPa rms @ 1 m (30-2000 Hz) for drilling and 151-160 dB re 1 μPa2s @ 1 m (20-24 000 Hz) for SPT.
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Affiliation(s)
- Christine Erbe
- JASCO Applied Sciences, Unit 1, 14 Hook Street, Hook Street Park, Capalaba, Queensland 4157, Australia ,
| | - Craig McPherson
- JASCO Applied Sciences, Unit 1, 14 Hook Street, Hook Street Park, Capalaba, Queensland 4157, Australia ,
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Gnanaraj J, Zarich S, Lancaster G, Chanda A, McPherson C. RECOGNIZING MYOCARDIAL INFARCTION IN BI-VENTRICULAR PACING. J Am Coll Cardiol 2016. [DOI: 10.1016/s0735-1097(16)31030-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Crystal A, Ravi S, Zarich S, Lancaster G, McPherson C. Same-Day Variability of ECG Voltage Criteria for the Diagnosis of Left Ventricular Hypertrophy: Implications for Clinical Practice. Chest 2013. [DOI: 10.1378/chest.1678832] [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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14
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Robinson MC, Chiravuri M, Winslow R, McPherson C, Chamarthy M. Extended Posterior Left Atrial Substrate Ablation for Advanced Atrial Fibrillation. Chest 2013. [DOI: 10.1378/chest.1704612] [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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15
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Ravi S, Rukshin V, Lancaster G, Zarich S, McPherson C. Diagnosis of left ventricular hypertrophy in the presence of left anterior fascicular block: a reexamination of the 2009 AHA/ACCF/HRS guidelines. Ann Noninvasive Electrocardiol 2013; 18:21-8. [PMID: 23347023 DOI: 10.1111/anec.12029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND The 2009 "AHA/ACCF/HRS Recommendations for Standardization and Interpretation of the Electrocardiogram" state that left ventricular hypertrophy (LVH) criteria that include R-wave amplitude in leads I and aVL are not likely reliable in the presence of left anterior fascicular block (LAFB). This statement was referenced to three relatively small studies. The present study reexamines the utility of selected electrocardiographic (ECG) criteria for LVH in the presence of LAFB. METHODS We identified 185 ECG tracings with LAFB from patients in whom echocardiogram had been performed within 30 days of the ECG. These ECGs were evaluated for the presence of selected LVH criteria: (1) Sokolow index (R-wave-aVL > 11 mm); (2) Cornell criteria (R-wave-aVL + S-wave-V3 > 28 mm in men (>20 mm in women); (3) Gertsch criterion (S-wave-III + (R + S) maximal precordial >30 mm); and (4) Bozzi criterion (SV1 or SV2 + (RV6 + SV6) > 25 mm). The "gold standard" for LVH was left ventricular mass index on echocardiogram. RESULTS Although the aVL-based LVH criteria demonstrated lower sensitivity (45-68%) and a trend toward higher specificity (67-81%) compared to non-aVL-based criteria, the four studied criteria demonstrated similar diagnostic accuracy. CONCLUSIONS In the presence of LAFB, the aVL-based Sokolow index and Cornell criteria, which were excluded from 2009 multisociety ECG guidelines, identify LVH with similar diagnostic accuracy as the non-aVL-based criteria that were included. Moreover, they are easier to calculate and are included in some of the computer-assisted ECG interpretation software presently in use. Their exclusion from the 2009 guidelines was unnecessary.
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Affiliation(s)
- Sandeep Ravi
- Department of Cardiology, Bridgeport Hospital, Yale University, Bridgeport, CT 06610, USA
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Brown MF, Mitton-Fry MJ, Arcari JT, Barham R, Casavant J, Gerstenberger BS, Han S, Hardink JR, Harris TM, Hoang T, Huband MD, Lall MS, Lemmon MM, Li C, Lin J, McCurdy SP, McElroy E, McPherson C, Marr ES, Mueller JP, Mullins L, Nikitenko AA, Noe MC, Penzien J, Plummer MS, Schuff BP, Shanmugasundaram V, Starr JT, Sun J, Tomaras A, Young JA, Zaniewski RP. Pyridone-conjugated monobactam antibiotics with gram-negative activity. J Med Chem 2013; 56:5541-52. [PMID: 23755848 DOI: 10.1021/jm400560z] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Herein we describe the structure-aided design and synthesis of a series of pyridone-conjugated monobactam analogues with in vitro antibacterial activity against clinically relevant Gram-negative species including Pseudomonas aeruginosa , Klebsiella pneumoniae , and Escherichia coli . Rat pharmacokinetic studies with compound 17 demonstrate low clearance and low plasma protein binding. In addition, evidence is provided for a number of analogues suggesting that the siderophore receptors PiuA and PirA play a role in drug uptake in P. aeruginosa strain PAO1.
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Affiliation(s)
- Matthew F Brown
- Worldwide Medicinal Chemistry, ‡Computational Chemistry, §Antibacterials Research Unit, ∥Pharmacokinetics, Dynamics & Metabolism, ⊥Structural Biology, Pfizer Global Research and Development , Eastern Point Road, Groton, Connecticut 06340, United States
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Abstract
Underwater acoustic recordings of six Floating Production Storage and Offloading (FPSO) vessels moored off Western Australia are presented. Monopole source spectra were computed for use in environmental impact assessments of underwater noise. Given that operations on the FPSOs varied over the period of recording, and were sometimes unknown, the authors present a statistical approach to noise level estimation. No significant or consistent aspect dependence was found for the six FPSOs. Noise levels did not scale with FPSO size or power. The 5th, 50th (median), and 95th percentile source levels (broadband, 20 to 2500 Hz) were 188, 181, and 173 dB re 1 μPa @ 1 m, respectively.
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Affiliation(s)
- Christine Erbe
- Centre for Marine Science & Technology, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia.
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Lynch JA, Choi CM, Park YS, Lee JC, Park MJ, Kim HR, Shih NY, Chang GC, Tseng SW, Liu KJ, Hsiao KC, Lin HC, Wang JY, Tsai HL, Barak V, Chen YJ, Hsieh YL, Chien PH, Chien YF, Huang WC, Lin SR, Chung FY, Yen LC, Tsai HL, Rixe O, Salkeni AM, Furgason JM, McPherson C, Warnick R, Bahassi M, Hembrough TA, Catenacci DVT, Liao WL, Thyparambil S, Xu P, Henderson L, Burrows J, Bebb DG, Elegbede AA, Kubota E, Petersen LF, Otsuka SM, Lees-Miller SP. Poster session 4. Molecular diagnosis & biomarkers. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt046] [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: 11/14/2022] Open
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Rixe O, Salkeni A, Furgason J, McPherson C, Warnick R, Bahassi M. Patient Selection for Anti-Egfviii Therapies in Glioblastoma Multiforme (GBM): Use of Circulating Tumor DNA. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt046.8] [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: 11/14/2022] Open
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20
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Erbe C, McPherson C. Acoustic characterisation of bycatch mitigation pingers on shark control nets in Queensland, Australia. ENDANGER SPECIES RES 2012. [DOI: 10.3354/esr00467] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Jensen RL, Abraham S, Hu N, Jensen RL, Boulay JL, Leu S, Frank S, Vassella E, Vajtai I, von Felten S, Taylor E, Schulz M, Hutter G, Sailer M, Hench J, Mariani L, van Thuijl HF, Scheinin I, van Essen DF, Heimans JJ, Wesseling P, Ylstra B, Reijneveld JC, Borges AR, Larrubia PL, Marques JMB, Cerdan SG, Brastianos P, Horowitz P, Santagata S, Jones RT, McKenna A, Getz G, Ligon K, Palescandolo E, Van Hummelen P, Stemmer-Rachamimov A, Louis D, Hahn WC, Dunn I, Beroukhim R, Guan X, Vengoechea J, Zheng S, Sloan A, Chen Y, Brat D, O'Neill BP, Cohen M, Aldape K, Rosenfeld S, Noushmehr H, Verhaak RG, Barnholtz-Sloan J, Bahassi EM, Li YQ, Cross E, Li W, Vijg J, McPherson C, Warnick R, Stambrook P, Rixe O, Manterola L, Tejada-Solis S, Diez-Valle R, Gonzalez M, Jauregui P, Sampron N, Barrena C, Ruiz I, Gallego J, Delattre JY, de Munain AL, Mlonso MM, Saito K, Mukasa A, Nagae G, Aihara K, Takayanagi S, Aburatani H, Saito N, Kong XT, Fu BD, Du S, Hasso AN, Linskey ME, Bota D, Li C, Chen YS, Chen ZP, Kim CH, Cheong JH, Kim JM, Yelon NP, Jacoby E, Cohen ZR, Ishida J, Kurozumi K, Ichikawa T, Onishi M, Fujii K, Shimazu Y, Date I, Narayanan R, Ho QH, Levin BS, Maeder ML, Joung JK, Nutt CL, Louis DN, Thorsteinsdottir J, Fu P, Gehrmann M, Multhoff G, Tonn JC, Schichor C, Thirumoorthy K, Gordon N, Walston S, Patel D, Okamoto M, Chakravarti A, Palanichamy K, French P, Erdem L, Gravendeel L, de Rooi J, Eilers P, Idbaih A, Spliet W, den Dunnen W, Teepen J, Wesseling P, Smitt PS, Kros JM, Gorlia T, van den Bent M, McCarthy D, Cook RW, Oelschlager K, Maetzold D, Hanna M, Wick W, Meisner C, Hentschel B, Platten M, Sabel MC, Koeppen S, Ketter R, Weiler M, Tabatabai G, Schilling A, von Deimling A, Gramatzki D, Westphal M, Schackert G, Loeffler M, Simon M, Reifenberger G, Weller M, Moren L, Johansson M, Bergenheim T, Antti H, Sulman EP, Goodman LD, Wani KM, DeMonte F, Aldape KD, Krischek B, Gugel I, Aref D, Marshall C, Croul S, Zadeh G, Nilsson CL, Sulman E, Liu H, Wild C, Lichti CF, Emmett MR, Lang FF, Conrad C, Alentorn A, Marie Y, Boisselier B, Carpetier C, Mokhtari K, Hoang-Xuan K, Capelle L, Delattre JY, Idbaih A, Lautenschlaeger T, Huebner A, McIntyre JB, Magliocco T, Chakravarti A, Hamilton M, Easaw J, Pollo B, Calatozzolo C, Vuono R, Guzzetti S, Eoli M, Silvani A, Di Meco F, Filippini G, Finocchiaro G, Joy A, Ramesh A, Smirnov I, Reiser M, Shapiro W, Mills G, Kim S, Feuerstein B, Gonda DD, Li J, McCabe N, Walker S, Goffard N, Wikstrom K, McLean E, Greenan C, Delaney T, McCarthy M, McDyer F, Keating KE, James IF, Harrison T, Mullan P, Harkin DP, Carter BS, Kennedy RD, Chen CC, Patel AS, Allen JE, Dicker DT, Rizzo K, Sheehan JM, Glantz MJ, El-Deiry WS, Salhia B, Ross JT, Kiefer J, Van Cott C, Metpally R, Baker A, Sibenaller Z, Nasser S, Ryken T, Ramanathan R, Berens ME, Carpten J, Tran NL, Bi Y, Pal S, Zhang Z, Gupta R, Macyszyn L, Fetting H, O'Rourke D, Davuluri RV, Ezrin AM, Moore K, Stummer W, Hadjipanayis CG, Cahill DP, Beiko J, Suki D, Prabhu S, Weinberg J, Lang F, Sawaya R, Rao G, McCutcheon I, Barker FG, Aldape KD, Trister AD, Bot B, Fontes K, Bridge C, Baldock AL, Rockhill JK, Mrugala MM, Rockne RR, Huang E, Swanson KR, Underhill HR, Zhang J, Shi M, Lin X, Mikheev A, Rostomily RC, Scheck AC, Stafford P, Hughes A, Cichacz Z, Coons SW, Johnston SA, Mainwaring L, Horowitz P, Craig J, Garcia D, Bergthold G, Burns M, Rich B, Ramkissoon S, Santagata S, Eberhart C, Ligon A, Goumnerova L, Stiles C, Kieran M, Hahn W, Beroukhim R, Ligon K, Ramkissoon S, Olausson KH, Correia J, Gafni E, Liu H, Theisen M, Craig J, Hayashi M, Haidar S, Maire C, Mainwaring LA, Burns M, Norden A, Wen P, Stiles C, Ligon A, Kung A, Alexander B, Tonellato P, Ligon KL. LAB-OMICS AND PROGNOSTIC MARKERS. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Argulian E, McPherson C, Kukin M. Organ-specific responses to circulatory disturbances in heart failure: new insights. ACTA ACUST UNITED AC 2012; 18:127-31. [PMID: 22432559 DOI: 10.1111/j.1751-7133.2011.00253.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Recent studies have provided new insights into the pathophysiology of congestive heart failure. Organ-specific responses to circulatory disturbances may differ via a hypoperfusion state and a venous congestion state. The liver and the kidneys serve as a good example of a differential injury pattern based on the predominant circulatory insult. Cardiorenal syndrome appears to be a kidney-specific response to predominantly right-sided backward heart failure ("congestive state"), rather than forward heart failure. Despite significant progress in our understanding of cardiorenal interactions, there is no specific therapy for the cardiorenal syndrome, which is a marker of the severity of the heart failure state.
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Affiliation(s)
- Edgar Argulian
- Division of Cardiology, St. Luke's-Roosevelt Hospital Center, Columbia University College of Physicians & Surgeons, New York, NY 10025, USA.
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Upadhyay S, Marshalko S, McPherson C. The stunned atrial lead: Transient malfunction of a permanent atrial pacer lead following acute myocardial infarction. Int J Crit Illn Inj Sci 2012; 1:161-3. [PMID: 22229143 PMCID: PMC3249851 DOI: 10.4103/2229-5151.84806] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Proximal right coronary artery occlusion caused transient loss of sensing and capture of the atrial lead of a permanent dual-chamber pacemaker. Forty-five days after percutaneous revascularization, the atrial lead was discovered to be functioning normally. We hypothesize that ischemia of the right atrium caused stunning of the atrial myocardium at the pacer–lead interface, which gradually improved following percutaneous coronary intervention (PCI), leading to return of lead function over time. So far only one similar case has been described in the literature.
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Affiliation(s)
- Shailendra Upadhyay
- Department of Pediatric Cardiology, Medical University of South Carolina, MUSC, 601, Children's Hospital, 165, Ashley Avenue, Charleston, SC - 29425, USA
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Chambless LB, Parker SL, Hassam-Malani L, McGirt MJ, Thompson RC, Zhou T, Meng X, Xu B, Wei S, Chen X, De Witt Hamer PC, Robles SG, Zwinderman AH, Duffau H, Berger MS, Gonzalez JDSR, Alberto OV, Patricia HM, Chaichana K, Pendleton C, Chambless L, Nathan J, Camara-Quintana J, Li G, Harsh G, Thompson R, Lim M, Quinones-Hinojosa A, Oppenlander ME, Wolf A, Porter R, Nakaji P, Smith KA, Spetzler RF, Sanai N, Kim JH, Clark AJ, Jahangiri A, Sughrue ME, McDermott MW, Aghi MK, Chen C, Kasper E, Warnke P, Park CK, Lee SH, Song SW, Kim JW, Kim TM, Yamaguchi F, Omura T, Ten H, Ishii Y, Kojima T, Takahashi H, Teramoto A, Pereira EA, Livermore J, Ansorge O, Bojanic S, Meng X, Xu B, Chen X, Wei S, Zhou T, Tong H, Yu X, Zhou D, Hou Y, Zhou Z, Zhang J, Fabiano AJ, Rigual N, Munich S, Fenstermaker RA, Chen X, Meng X, Zhang J, Wang F, Zhao Y, Xu BN, Kim EH, Oh MC, Lee EJ, Kim SH, Kim YH, Kim CY, Kim YH, Han JH, Park CK, Kim SK, Paek SH, Wang KC, Kim DG, Jung HW, Chen X, Meng X, Wang F, Zhao Y, Xu BN, Krex D, Lindner C, Juratli T, Raue C, Schackert G, Valdes PA, Kim A, Leblond F, Conde OM, Harris BT, Paulsen KD, Wilson BC, Roberts DW, Krex D, Juratli T, Lindner C, Raue C, Schackert G, Occhiogrosso G, Cascardi P, Blagia M, De Tommasi A, Gelinas-Phaneuf N, Choudhury N, Al-Habib A, Cabral A, Nadeau E, Vincent M, Pazos V, Debergue P, DiRaddo R, Del Maestro RF, Guha-Thakurta N, Prabhu SS, Schulder M, Zavarella S, Nardi D, Schaffer S, Ruge MI, Grau S, Fuetsch M, Kickingereder P, Hamisch C, Treuer H, Voges J, Sturm V, Choy W, Yew A, Spasic M, Nagasawa D, Kim W, Yang I, Quigley MR, Hobbs J, Bhatia S, Cohen ZR, Shimon I, Hadani M, Carapella CM, Oppido PA, Vidiri A, Telera S, Pompili A, Villani V, Fabi A, Pace A, Cahill D, Wang M, Won M, Aldape K, Maywald R, Hegi M, Mehta M, Gilbert M, Sulman E, Vogelbaum M, Narayana A, Kunnakkat SD, Parker E, Gruber D, Gruber M, Knopp E, Zagzag D, Golfinos J, Dziurzynski K, Blas-Boria D, Suki D, Cahill D, Prabhu S, Puduvalli V, Levine N, Bloch O, Han SJ, Kaur G, Aghi MK, McDermott MW, Berger MS, Parsa AT, Quigley MR, Fukui O, Chew B, Bhatia S, DePowell JJ, Sanders-Taylor C, Guarnaschelli J, McPherson C, Sheth SA, Snuderl M, Kwon CS, Wirth D, Yaroslavsky A, Curry WT, Vogelbaum MA, Wang M, Hadjipanayis CG, Won M, Mehta MP, Gilbert MR, Megyesi JF, Macdonald D, Wang B, Pierre GHS, Hoover JM, Goerss SJ, Kaufmann TJ, Meyer FB, Parney IF, Guthikonda B, Thakur J, Khan I, Ahmed O, Shorter C, Wilson J, Welsh J, Cuellar H, Jeroudi M. SURGICAL THERAPIES. Neuro Oncol 2011; 13:iii154-iii163. [PMCID: PMC3222965 DOI: 10.1093/neuonc/nor164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2023] Open
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Furnari F, Fenton T, Nathanson D, de Alberquerque CP, Kuga D, Wanami A, Dang J, Yang H, Tanaka K, Gao L, Oba-Shinjo S, Uno M, Inda MDM, Bachoo R, James CD, DePinho R, Vandenberg S, Zhou H, Marie S, Mischel P, Cavenee W, Szerlip N, Pedraza A, Huse J, Mikkelsen T, Brennan C, Szerlip N, Castellani RJ, Ivanova S, Gerzanich VV, Simard JM, Ito M, See W, Mukherjee J, Ohba S, Tan IL, Pieper RO, Lukiw WJ, Culicchia F, Pogue A, Bhattacharjee S, Zhao Y, Proescholdt MA, Merrill M, Storr EM, Lohmeier A, Brawanski A, Abraham S, Jensen R, Khatua S, Gopal U, Du J, He F, Golub T, Isaacs JS, Dietrich J, Kalogirou-Valtis Y, Ly I, Scadden D, Proschel C, Mayer-Proschel M, Rempel SA, Schultz CR, Golembieski W, Brodie C, Mathew LK, Skuli N, Mucaj V, Imtiyaz HZ, Venneti S, Lal P, Zhang Z, Davuluri RV, Koch C, Evans S, Simon MC, Ranganathan P, Clark P, Salamat S, Kuo JS, Kalejta RF, Bhattacharjee B, Renzette N, Moser RP, Kowalik TF, McFarland BC, Ma JY, Langford CP, Gillespie GY, Yu H, Zheng Y, Nozell SE, Huszar D, Benveniste EN, Lawrence JE, Cook NJ, Rovin RA, Winn RJ, Godlewski JA, Ogawa D, Bronisz A, Lawler S, Chiocca EA, Lee SX, Wong ET, Swanson KD, Liu KW, Feng H, Bachoo R, Kazlauskas A, Smith EM, Symes K, Hamilton RL, Nagane M, Nishikawa R, Hu B, Cheng SY, Silber J, Jacobsen A, Ozawa T, Harinath G, Brennan CW, Holland EC, Sander C, Huse JT, Sengupta R, Dubuc A, Ward S, Yang L, Northcott P, Kroll K, Taylor M, Wechsler-Reya R, Rubin J, Chu WT, Lee HT, Huang FJ, Aldape K, Yao J, Steeg PS, Lu Z, Xie K, Huang S, Sim H, Agudelo-Garcia PA, Hu B, Viapiano MS, Hu B, Agudelo-Garcia PA, Saldivar J, Sim H, Dolan C, Mora M, Nuovo G, Cole S, Viapiano MS, Stegh AH, Ryu MJ, Liu Y, Du J, Zhong X, Marwaha S, Li H, Wang J, Salamat S, Chang Q, Zhang J, Ng HK, Yang L, Poon WS, Zhou L, Pang JC, Chan A, Didier S, Kwiatkowska A, Ennis M, Fortin S, Rushing E, Eschbacher J, Tran N, Symons M, Roldan G, McIntyre JB, Easaw J, Magliocco A, Wykosky J, Cavenee W, Furnari F, Lu D, Mreich E, Chung S, Teo C, Wheeler H, McDonald KL, Lawn S, Forsyth P, Sonabend AM, Lei L, Kennedy B, Soderquist C, Guarnieri P, Leung R, Yun J, Sisti J, Castelli M, Bruce S, Bruce R, Ludwig T, Rosenfeld S, Bruce JN, Canoll P, Lamszus K, Schulte A, Gunther HS, Riethdorf S, Phillips HS, Westphal M, Siegal T, Zrihan D, Granit A, Lavon I, Singh M, Chandra J, Ogawa D, Nakashima H, Godlewski J, Chiocca AE, Kapoor GS, Poptani H, Ittyerah R, O'Rourke DM, Sadraei NH, Burgett M, Ahluwalia M, Tipps R, Khosla D, Weil R, Nowacki A, Prayson R, Shi T, Gladson C, Moeckel S, Meyer K, Bosserhoff A, Spang R, Leukel P, Vollmann A, Jachnick B, Stangl C, Proescholdt M, Bogdahn U, Hau P, Kaur G, Sun M, Kaur R, Bloch O, Jian B, Parsa AT, Hossain A, Shinojima N, Gumin J, Feng G, Lang FF, Li L, Yang CR, Chakraborty S, Hatanpaa K, Chauncey S, Jiwani A, Habib A, Nguyen T, Nakashima H, Chiocca EA, Munson J, Machaidze R, Kaluzova M, Bellamkonda R, Hadjipanayis CG, Zhang Y, McFarland B, Bredel M, Benveniste EN, Lee SH, Zerrouqi A, Khwaja F, Devi NS, Van Meir EG, Haseley A, Boone S, Wojton J, Yu L, Kaur B, Wojton JA, Naduparambil J, Denton N, Chakravarti A, Kaur B, Conrad CA, Wang X, Sheng X, Nilsson C, Marshall AG, Emmett MR, Hu Y, Mark L, Zhou YHZ, Dhruv H, McDonough W, Tran N, Armstrong B, Tuncali S, Eschbacher J, Kislin K, Berens M, Plas D, Gallo C, Stringer K, Kendler A, McPherson C, Castelli MA, Ellis JA, Assanah M, Bruce JN, Canoll P, Ogden A, Liang J, Piao Y, deGroot JF, Gordon N, Patel D, Chakravarti A, Palanichamy K, Hervey-Jumper S, Wang A, He X, Zhu T, Heth J, Muraszko K, Fan X, Nakashima H, Nguyen T, Chiocca EA, Liu WM, Huang P, Rani S, Stettner MR, Jerry S, Dai Q, Kappes J, Tipps R, Gladson CL, Chakravarty D, Pedraza A, Koul D, Alfred Yung WK, Brennan CW, Jensen SA, Luciano J, Calvert A, Nagpal V, Stegh A, Kang SH, Yu MO, Lee MG, Chi SG, Chung YG, Cooper MK, Valadez JG, Grover VK, Kouri FM, Chin L, Stegh AH, Ahluwalia MS, Khosla D, Weil RJ, McGraw M, Huang P, Prayson R, Nowacki A, Barnett GH, Gladson C, Kang C, Zou J, Lan F, Yue X, Shi Z, Zhang K, Han L, Pu P, Seaman BF, Tran ND, McDonough W, Dhruv H, Kislin K, Berens M, Battiste JD, Sirasanagandla S, Maher EA, Bachoo R, Sugiarto S, Persson A, Munoz EG, Waldhuber M, Vandenberg S, Stallcup W, Philips J, Berger MS, Bergers G, Weiss WA, Petritsch C. CELL BIOLOGY AND SIGNALING. Neuro Oncol 2011; 13:iii10-iii25. [PMCID: PMC3199169 DOI: 10.1093/neuonc/nor148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023] Open
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Dadu R, McPherson C. The Ventriculophasic Response May Be Related to Ventricular Synchrony. Chest 2011. [DOI: 10.1378/chest.1115603] [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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Rao R, Bryowsky K, Mao J, Bunton D, McPherson C, Mathur A. Gastrointestinal complications associated with ibuprofen therapy for patent ductus arteriosus. J Perinatol 2011; 31:465-70. [PMID: 21252965 DOI: 10.1038/jp.2010.199] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To review intestinal complications associated with ibuprofen treatment of patent ductus arteriosus (PDA). STUDY DESIGN Data from preterm infants treated with ibuprofen were retrospectively reviewed. χ(2) test and Fischer's exact test were used for univariate analyses. Multivariate analyses with logistic regression modeling were used to identify risk factors. RESULT One hundred and two infants were treated with ibuprofen for PDA. Nine (9/102, 8.8%) infants developed spontaneous intestinal perforation (SIP), whereas 93/102 (91.2%) did not. The mean (± s.d.) gestational age (GA) at birth in infants with and without SIP was 25.2 (± 1.3) vs 27.6 (± 2.4) weeks (P=0.02) and the median (interquartile) length of stay (LOS) was 109.5 (91.0 to 116.5) vs 75.0 (53.0 to 94.5) days (P=0.002), respectively. The mean (± s.d.) age at starting ibuprofen was 3.3 (± 1.3) vs 5.8 (± 3.5) days in infants with and without SIP, respectively (P=0.03). In logistic regression analyses, increasing GA and later initiation of ibuprofen treatment were protective against risk of SIP; odds ratio, 95% confidence interval (OR, 95% CI)=0.26 (0.09 to 0.75), P=0.01 and 0.63 (0.41 to 0.95), P=0.03, respectively. CONCLUSION Infants at lower GA are at risk of SIP when treated early with ibuprofen for symptomatic PDA.
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Affiliation(s)
- R Rao
- Division of Newborn Medicine, Washington University in St Louis, St Louis, MO 63110, USA.
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Charkravarti A, Wang M, Robins I, Guha A, Curren W, Brachman D, Schultz C, Choucair A, Dolled-Filhart M, Christiansen J, Gustavson M, Molinaro A, Mischel P, Lautenschlaeger T, Dicker A, Mehta M, Phillips CA, Dhulibala S, Hallahan D, Jaboin J, Cardinale FS, Dickey P, Goodrich I, Gorelick J, Sinha R, Dest VM, Chen C, Olsen C, Franklin W, Kleinschmidt-DeMasters B, Kavanagh BD, Lillehei K, Waziri A, Damek D, Gaspar LE, Stauder MC, Laack NN, Link MJ, Pollock BE, Schomberg PJ, Fraser JF, Pannullo SC, Moliterno J, Cobb W, Stieg PE, Vinchon-Petit S, Jarnet D, Michalak S, Lewis A, Benoit JP, Menei P, Desmarais G, Paquette B, Bujold R, Mathieu D, Fortin D, Cuneo KC, Vredenburgh JJ, Sampson JH, Reardon DA, Desjardins A, Peters KL, Kirkpatrick JP, Patel PN, Vyas R, Suryanarayan U, Bhavsar D, Mehta M, Hayhurst C, Monsalves E, Van Prooijen M, Menard C, Zadeh G, Chung C, Burrell K, Lindsey P, Menard C, Zadeh G, Burri SH, Asher AL, Kelly RB, Boltes P, Fraser RW, Dilmanian FA, Rusek A, Desnoyers NR, Park JY, Dane B, Dioszegi I, Hurley SD, O'Banion MK, Tomasi D, Wang R, Meek AG, Sleire L, Wang J, Heggdal J, Pedersen PH, Enger PO, Clump DA, Srinivas R, Wegner RE, Heron DE, Burton SA, Mintz AH, Howard SP, Robins HI, Tome WA, Paravati AJ, Heron DE, Gardner PA, Snyderman C, Ozhasoglu C, Quinn A, Burton SA, Seelman K, Seelman K, Mintz AH, Chang JH, Park YG, Mehta MJ, Patel PN, Vyas RK, Bhavsar DC, Guarnaschelli JN, Imwalle L, Ying J, McPherson C, Warnick R, Breneman J, Khwaja SS, Laack NN, Wetjen NM, Brown PD, Siedow M, Nestler U, Perry J, Huebner A, Chakravarti A, Lautenschlaeger T, Glass J, Andrews D, Werner-Wasik M, Evans J, Lawrence R, Martinez N, Anuradha G, David M, Sara M, Mark L, Ricardo B, Jeff J, Juan H, Kozono D, Zinn P, Ng K, Chen C, Melian E, Prabhu V, Sethi A, Barton K, Anderson D, Rockne RC, Mrugala M, Rockhill J, Swanson KR. Radiation Therapy. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s15] [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: 11/13/2022] Open
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Rukshin V, Ravi S, Srinivasan J, Adigopula S, Lancaster G, Zarich S, McPherson C. VALIDITY OF CRITERIA USING R-WAVE AMPLITUDE IN AVL TO DIAGNOSE LEFT VENTRICULAR HYPERTROPHY IN THE PRESENCE OF LEFT ANTERIOR FASCICULAR BLOCK: THE 2009 MULTI-SOCIETY ELECTROCARDIOGRAM GUIDELINES REVISITED. Chest 2009. [DOI: 10.1378/chest.136.4_meetingabstracts.101s] [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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Lampert R, Shusterman V, Burg M, McPherson C, Batsford W, Goldberg A, Soufer R. Anger-induced T-wave alternans predicts future ventricular arrhythmias in patients with implantable cardioverter-defibrillators. J Am Coll Cardiol 2009; 53:774-8. [PMID: 19245968 DOI: 10.1016/j.jacc.2008.10.053] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2008] [Revised: 10/14/2008] [Accepted: 10/19/2008] [Indexed: 11/26/2022]
Abstract
OBJECTIVES This study sought to determine whether T-wave alternans (TWA) induced by anger in a laboratory setting predicts future ventricular arrhythmias in patients with implantable cardioverter-defibrillators (ICDs). BACKGROUND Anger can precipitate spontaneous ventricular tachycardia/ventricular fibrillation and induce TWA. Whether anger-induced TWA predicts future arrhythmias is unknown. METHODS Sixty-two patients with ICDs underwent ambulatory electrocardiography during a mental stress protocol, 3 months after the ICD was implanted. T-wave alternans was analyzed using time-domain methods. After a > or =1 year follow-up, ICD stored data was reviewed to determine incidence of ICD-terminated ventricular tachycardia/ventricular fibrillation. RESULTS Patients with ICD-terminated arrhythmias during follow-up (n = 10) had higher TWA induced by anger, 13.2 microV (interquartile range [IQR] 9.3 to 16 microV), compared with those patients without future ventricular arrhythmias, 9.3 microV (IQR 7.5 to 11.5 microV, p < 0.01). Patients in the highest quartile of anger-induced TWA (>11.9 microV, n = 15) were more likely to experience arrhythmias by 1 year than those in the lower quartiles (33% vs. 4%) and during extended follow-up (40% vs. 9%, p < 0.01 for both). In multivariable regression controlling for ejection fraction, prior clinical arrhythmia, and wide QRS, anger-induced TWA remained a significant predictor of arrhythmia, with likelihood in the top quartile 10.8 times that of other patients (95% confidence interval: 1.6 to 113, p < 0.05). CONCLUSIONS Anger-induced TWA predicts future ventricular arrhythmias in patients with ICDs, suggesting that emotion-induced repolarization instability may be 1 mechanism linking stress and sudden death. Whether there is a clinical role for anger-induced TWA testing requires further study.
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Affiliation(s)
- Rachel Lampert
- Yale University School of Medicine, New Haven, Connecticut, USA
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Blendea D, Razvan D, McPherson C. THE VENTRICULOPHASIC RESPONSE IS RELATED TO VENTRICULAR FUNCTION: OBSERVATIONS IN ELDERLY, PACER-DEPENDENT SUBJECTS. Chest 2008. [DOI: 10.1378/chest.134.4_meetingabstracts.s2001] [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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Bonofiglio M, Hay J, McPherson C. Lymphatic filariasis: inflammatory response to Wolbachia bacteria in filarial worms. Lymphology 2007; 40:191-192. [PMID: 18365535] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- M Bonofiglio
- Biomedical Communications, University of Toronto, Canada.
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Upadhyay S, Afaq M, Upadhyay S, Zarich S, McPherson C. Weight loss supplement provoked idiopathic ventricular tachycardia. Indian Heart J 2007; 59:494-496. [PMID: 19151465] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
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Mountantonakis SE, Moutzouris DA, McPherson C. THE IMPACT OF STRESS ON HEART RATE VARIABILITY OF ON-CALL PHYSICIANS. Chest 2005. [DOI: 10.1378/chest.128.4_meetingabstracts.277s-a] [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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Mahoney T, Clancy J, McPherson C, Rosenfeld L, Batsford W, Lampert R. Ejection fraction is a poor predictor of recurrent arrhythmia in patients receiving ICDs for primary prophylaxis. Heart Rhythm 2005. [DOI: 10.1016/j.hrthm.2005.02.765] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
After-death interviews with bereaved respondents are an important tool in the repertoire of researchers evaluating the quality of end-of-life care or investigating the experiences of people at the end of life. Despite the importance of after-death interviews to our understanding of the last months of life, the validity of the information gathered has received little attention. In this article, we review some of the available information, drawing on evidence from cognitive psychology as well as from palliative care studies. Findings from cognitive psychology indicate that memory is a dynamic process, influenced by emotion state and the individual's perspective at the time of the event and at recall. Further research is therefore needed to understand better the circumstances, types of information and research questions for which bereaved relatives are valid surrogates for people who have died.
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Affiliation(s)
- J Addington-Hall
- Department of Palliative Care and Policy, Guy's, Kings' and St. Thomas' School of Medicine, King's College, London, United Kingdom
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Qamar A, McPherson C, Babb J, Bernstein L, Werdmann M, Yasick D, Zarich S. The Goldman algorithm revisited: prospective evaluation of a computer-derived algorithm versus unaided physician judgment in suspected acute myocardial infarction. Am Heart J 1999; 138:705-9. [PMID: 10502217 DOI: 10.1016/s0002-8703(99)70186-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [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: 11/26/2022]
Abstract
BACKGROUND It has been nearly a decade since Goldman's computer-driven algorithm to predict myocardial infarction was validated. Despite the potential to avoid admission of patients without acute myocardial infarction (AMI) to the coronary care unit (CCU), the routine use of computer-generated protocols has not been widely adopted. METHODS Two hundred consecutive patients admitted to a university-affiliated community hospital with the suspected diagnosis of AMI as determined by physicians without the aid of the Goldman protocol underwent a blinded prospective evaluation to assess the performance of the Goldman algorithm in predicting the presence of AMI. Over the same time period, the Goldman algorithm was applied by retrospective chart review in 762 patients with non-AMI admitting diagnoses. Prospective history, physical examination, and electrocardiographic data were obtained within 24 hours of admission to the CCU by a physician blinded to each patient's clinical course. Retrospective chart reviews were conducted for 762 patients with chest pain given with non-AMI diagnoses. RESULTS The diagnosis of AMI was confirmed in 68.5% (137/200) of patients with suspected AMI admitted to the CCU. In prospective parallel evaluations the Goldman algorithm predicted the presence of AMI in 167 (83.5%) of these 200 patients. All 137 confirmed patients with AMI were correctly identified by the Goldman algorithm. All major in-hospital complications occurred in the 137 patients who were diagnosed as having AMI. Of the 762 patients with chest pain with non-AMI diagnoses, only 27 (3.5%) sustained an AMI. The Goldman algorithm predicted the presence of AMI in 85% (23/27) of these patients. Adherence to the use of Goldman's algorithm in the triage of chest pain could have prevented 16.5% of CCU admissions for AMI. CONCLUSIONS Routine adherence to the Goldman algorithm for the evaluation of patients with acute chest pain could have decreased the number of CCU admissions for suspected AMI by 16. 5%. Because major in-hospital complications occurred only in patients with AMI, this strategy would result in significant cost savings to our health care system without jeopardizing patient safety.
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Affiliation(s)
- A Qamar
- Departments of Cardiology, Bridgeport Hospital, Bridgeport, Connecticut, USA
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Bernstein LH, Qamar A, McPherson C, Zarich S, Rudolph R. Diagnosis of myocardial infarction: integration of serum markers and clinical descriptors using information theory. Yale J Biol Med 1999; 72:5-13. [PMID: 10691044 PMCID: PMC2578957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/30/2022]
Abstract
OBJECTIVE We examine the use of information theory applied to a single cardiac troponin T (cTnT) (first generation monoclonal; Boehringer Mannheim Corp., Indianapolis, Indiana) used with the character of chest pain, electrocardiography (ECG) and serial ECG changes in the evaluation of acute myocardial infarction (AMI). We combined a single measure of cTnT (blinded to the investigators) with a creatine kinase MB isoenzyme (CK-MB) measurement to discover the best decision value for this test in a study of 293 consecutive patients presenting to the emergency department with symptoms warranting exclusion of AMI. METHODS The decision value for determining whether cTnT is positive or negative was determined independently of the final diagnosis by examining the information in the cTnT and CKMB data. Using information theory, an autocorrelation matrix with a one-to-one pairing of the CKMB and troponin T was constructed. The effective information, also known as Kullback entropy, assigned the values for troponin T and for CKMB that have the lowest frequency of misclassification error. The Kullback entropy is determined by subtracting the data entropy from the maximum entropy of the data set in which the information has been destroyed. The assignment of the optimum decision values was made independently of the clinical diagnoses without the construction of a receiver-operator characteristic curve (ROC). The final diagnosis of AMI was independently determined by the clinicians and entered into the medical record. RESULTS The decision value for cTnT was 0.1 ng/ml as determined by the the information in the data. The method was validated within the same study by mapping the results so obtained into the diagnoses obtained independently by the clinicians using all of the methods at their disposal. The cTnT was different in AMI (n = 60) compared with non-AMI patients (n = 233) (2.08 +/- 0.21 vs. 0.07 +/- 0.10; p < .0001). CONCLUSION Information theory provides a strong framework and methodology for determining the decision value for cTnT which minimizes misclassification errors at 0.1 ng/ml. The result has a strong correlation with other features in detecting AMI in patients presenting with chest pain.
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Affiliation(s)
- L H Bernstein
- Department of Pathology and Laboratory Medicine, Bridgeport Hospital, Connecticut 06610, USA.
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Bernstein LH, Qamar A, McPherson C, Zarich S. Evaluating a new graphical ordinal logit method (GOLDminer) in the diagnosis of myocardial infarction utilizing clinical features and laboratory data. Yale J Biol Med 1999; 72:259-68. [PMID: 10907776 PMCID: PMC2578974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE We used a new graphical ordinal logit method (GOLDminer) to assess a single cardiac troponin T (cTnT) analysis at the time of admission (first generation monoclonal; Roche BMC Corp., Indianapolis, Indiana), the character of chest pain, and electrocardiographic (ECG)findings in predicting the likelihood of acute myocardial infarction (AMI) in patients presenting with suspected myocardial ischemia. The final diagnosis of AMI was based on serial ECG findings and evolution of CKMB isoenzyme levels in conjunction with clinical findings. SUBJECTS The study population consisted of 293 consecutive patients who presented at a mean of six hours after onset of chest pain or associated symptoms warranting a "rule-out" for AMI assessment to a university-affiliated community hospital. RESULTS The odds-ratio for an elevated cTnT (> 0. 1 ng/ml) in AMI was 22.2:1. There was an association between typical chest pain and cTnT (chi square = 78.23, p < .0001) and between abnormal ECG findings and cTnT (chi square = 108, p < .0001). The cTnT yielded diagnostic benefit in addition to chest pain characteristics and ECG findings in AMI. We present the odds-ratios for the combined features in GOLDminer plots. CONCLUSION We demonstrate how the odds-ratios for AMI are obtained after scaling continuous to ordinal the values for a single cTnT determination alone and with other features in patients presenting with chest pain.
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Affiliation(s)
- L H Bernstein
- Department of Pathology and Laboratory Medicine, Yale University School of Medicine, Bridgeport Hospital, Connecticut 06610, USA
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Tyebkhan J, Peters K, McPherson C, Coté J. Developmentally based care reduces stress levels in severely ill, very low birth weight (VLBW) infants, and thus decreases sedation requirements. J Perinatol 1999; 19:80-1. [PMID: 10685210 DOI: 10.1038/sj.jp.7200130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lampert R, Rosenfeld L, McPherson C, Lewis R, Vanzetta A, Batsford W. Initial single-center experience with an advanced third-generation investigational defibrillator. Pacing Clin Electrophysiol 1996; 19:2072-82. [PMID: 8994946 DOI: 10.1111/j.1540-8159.1996.tb03281.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 02/03/2023]
Abstract
The CPI PRxII is a recently approved, multitiered implantable cardioverter defibrillator (ICD) that delivers high and low energy biphasic shocks, antitachycardia (ATP) and bradycardia pacing, and stores 2.5 minutes of electrograms from the widely spaced shocking electrodes. The PRxII was implanted in 58 patients at Yale-New Haven Hospital between December 1993 and January 1995. At implant, mean biphasic defibrillation threshold (DFT) in patients with testing to failure was 10 J (1-20). All 36 patients who were candidates for a new transvenous system underwent successful nonthoracotomy implantation. Based on noninvasive predischarge EPS results, 30 patients had > or = 1 VT zone: 21 patients had ATP, 9 others had first shock < or = 5 J. During follow-up, 13 patients had been treated for 379 events (range, 1-127). Of 340 events in a zone with ATP, 97% responded to ATP, 3% required shock. First programmed shock converted all events in a VF zone. Details, including RR intervals, were available for all events in 15 of 17 patients receiving appropriate or inappropriate therapy or diverted shocks. One hundred eleven of 148 available electrograms confirmed VT by morphology, rate, and/or presence of AV dissociation. In nine patients, electrogram data altered therapy through diagnosis of inappropriate or diverted therapy, guidance of detection enhancements, or diagnosis of previously unrecognized VTs. We conclude the PRxII achieves low DFTs that obviate the need for thoracotomy and effectively treats ventricular arrhythmias with ATP and shock, with programming guided by noninvasive electrophysiology. Multiple stored electrograms from widely spaced shocking electrodes greatly enhance diagnostic capabilities, facilitating effective treatment.
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Affiliation(s)
- R Lampert
- Yale University School of Medicine, Yale-New Haven Hospital, CT 06511, USA
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McPherson C. More letters on article about nonhuman animal research. J Am Vet Med Assoc 1996; 209:714; author reply 716-7. [PMID: 8974985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Abstract
Schwannomas were diagnosed in twelve dogs and five cats at Massey University Small Animal Clinic and Hospital over a 15-year period (1977-92). A further two feline cases were reported at the Batchelar Animal Health Laboratory. In six dogs, the tumour involved nerves of the brachial plexus. Clinical signs observed in these dogs were forelimb lameness, muscle wasting and pain on movement of the affected limb or neck. Hindlimb paresis was observed in two dogs. Surgical excision of the brachial plexus tumour was attempted in one dog, leading to an 8-month remission of signs. In one dog, the tumour involved the sacral nerves, and in two dogs the cranial nerves were affected. Three dogs had skin nodules. Seven of the twelve affected dogs were destroyed. In five cats, the tumours developed on the carpus, tarsus or interdigital area of a forelimb or hindlimb as a slowly developing nodular lesion. In the other two cats, the site of the tumour was the flank and the lateral thigh respectively. Surgical excision of the tumour was successful in three cats.
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Affiliation(s)
- B R Jones
- Department of Veterinary Clinical Sciences, Massey University, Palmerston North, New Zealand
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Lampert R, Rosenfeld L, Batsford W, Lee F, McPherson C. Circadian variation of sustained ventricular tachycardia in patients with coronary artery disease and implantable cardioverter-defibrillators. Circulation 1994; 90:241-7. [PMID: 8026004 DOI: 10.1161/01.cir.90.1.241] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.0] [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: 01/28/2023]
Abstract
BACKGROUND While previous studies using epidemiological data and ambulatory ECG monitoring have shown peak occurrence of sudden death and nonsustained ventricular tachycardia in the morning, none have examined circadian variation of potentially life-threatening ventricular tachycardia (VT), nor has any study observed circadian behavior of any arrhythmias in individuals followed longitudinally. We used the event memory of multiprogrammable implantable cardioverter-defibrillators to evaluate the circadian pattern of sustained VT over time. METHODS AND RESULTS Data were reviewed from 32 consecutive patients with coronary artery disease and sustained VT who had received the Ventak PRX (CPI, Inc) cardioverter-defibrillator between May 1991 and August 1993 and had experienced at least one episode of VT terminated by their device. Mean follow-up was 14 +/- 7 months. Among the 2558 episodes recorded by the device logs, VT occurrence peaked between 6 AM and noon (P = .007 by ANOVA among four 6-hour time periods). Harmonic regression revealed a morning peak at 9 AM (P < .01). This morning peak occurred in patients with both frequent and infrequent events. Among 21 patients who experienced more than four VT events, 8 (38%) had an AM peak of VT occurrence (> 35% of VT between 6 AM and noon). Neither age, ejection fraction, event frequency, presenting arrhythmia, nor drug therapy distinguished patients who displayed the AM VT peak. CONCLUSIONS In patients with coronary artery disease, sustained VT displays circadian variation with peak frequency in the morning, similar to that for sudden death. Individual patients who display specific patterns of circadian variation over time can be identified using defibrillator logs. Investigation of circadian variation of other phenomena to elucidate mechanisms of VT should focus on these patients.
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Affiliation(s)
- R Lampert
- Yale University School of Medicine, Yale-New Haven Hospital, Conn. 06511
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Mason P, McPherson C. Implantable cardioverter defibrillator: a review. Heart Lung 1992; 21:141-7. [PMID: 1544807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Sudden cardiac death claims 400,000 to 450,000 lives annually. It is believed that sudden cardiac death results predominantly from ventricular fibrillation or sustained ventricular tachycardia that deteriorates into ventricular fibrillation. Conventional treatments for patients who suffer from ventricular arrhythmias have been limited to antiarrhythmic drugs or surgery. These treatments have proved ineffective to a portion of arrhythmia sufferers. The implantable cardioverter defibrillator offers hope to a segment of ventricular arrhythmia sufferers whose disease is resistant to conventional therapies.
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Affiliation(s)
- P Mason
- Department of Nursing, Veterans Administration Medical Center, West Haven, CT 06516
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McPherson C, Wittemann JK, Hasbrouck CS. An interdisciplinary team approach to development of health professions education. J Allied Health 1984; 13:94-103. [PMID: 6735901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In this article, the authors provide a practical approach to developing interdisciplinary educational programs for health professions students from different colleges. A three-stage model that enables interdisciplinary teams of faculty members to collaborate during planning and implementing programs is described. These three stages are identifying interdependence, exploring roles and sources of influence, and developing work methods. Common problems occurring during each stage and suggested solution alternatives are cited. The value of this model is the translation of philosophical perspectives into workable methods.
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Abstract
An elective modules programme in the behavioural sciences was designed for the undergraduate medical curriculum at The Ohio State University College of Medicine. The programme provides a mechanism by which a broad range of behavioural science content can be introduced into the curriculum without increased allocation of teaching staff or budget. Student preference data indicate some clear differences with the more popular modules being those which focus on skills or behaviours that students perceive to be useful in the immediate practice of medicine. The elective aspect of the programme was part of its initial appeal, both to students and teaching staff. Two years of course evaluation data from the students indicate that most individual modules and the programmes as a total have been successful in achieving their intentions. The programme has now been included as a permanent component of the curricula.
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Sachs LA, McPherson C, Donnerberg R. Influencing medical students' attitudes toward older adults: a curriculum proposal. Gerontol Geriatr Educ 1984; 4:91-96. [PMID: 6534798 DOI: 10.1300/j021v04n04_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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McPherson C, Hasbrouck CS, Donnerberg R. A curriculum design for an interdisciplinary field experience in geriatrics/gerontology. Gerontol Geriatr Educ 1984; 5:5-16. [PMID: 6536552 DOI: 10.1300/j021v05n01_02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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