1
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Wu F, Yasin S, Summers M, Siliciano R, Simonetti F. OP 3.2 – 00056 Clonally expanded HIV-1 proviruses with 5′-Leader defects can give rise to nonsuppressible residual viremia and complicate ART management. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100174] [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: 12/24/2022] Open
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2
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Kufera J, Armstrong C, Wu F, Singhal A, Zhang H, Lai J, Wilkins H, Simonetti F, Siliciano J, Siliciano R. OP 3.6 – 00023 Effect of HIV-1 infection, viral particle production, and proviral integration site on CD4+ T cell proliferation. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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3
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Ilardi F, Manzo R, Franzone A, Angellotti D, Avvedimento M, Iapicca C, Manzi L, Verde N, Simonetti F, Castiello D, Leone A, Mariani A, Piccolo R, Cirillo P, Esposito G. Prognostic role of global work efficiency in patients undergoing transcatheter aortic valve implantation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.146] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Non-invasive myocardial work (MW) quantification has emerged in the last years as an alternative echocardiographic tool for myocardial function assessment. Its role in patients with severe aortic stenosis (AS) after aortic valve implantation (TAVI) has not been adequately investigated.
Purpose
We aimed to evaluate MW indices as early echocardiographic markers of LV reverse remodeling within a month after TAVI and their prognostic value.
Methods and results
We conducted a single-centre prospective study, enrolling 88 consecutive patients (mean age 79.9±6.4 years, 35% males) with AS undergoing TAVI between April 2018 and 2021, selected from the EffecTAVI registry. Exclusion criteria were prior valve surgery, atrial fibrillation, left bundle branch block (LBBB) at baseline and and suboptimal quality of imaging. Echocardiographic assessment was performed before TAVI and at 30-day follow-up, including quantification of 2D global longitudinal strain (GLS), global work index (GWI), global constructive work (GCW), global wasted work (GWW) and global work efficiency (GWE). LV peak systolic pressure was estimated non-invasively from the sum of systolic blood pressure and trans-aortic mean gradient. One month after the procedure, there was a significant improvement of LV GLS (−18.4±4.2 vs −19.5±4.2%, before and after TAVI respectively, p=0.006), a significant reduction of GWI (2406±567 vs 1908±479 mmHg%, p<0.001), GCW (2783±616 vs 2202±463 mmHg%, p<0.001), and GWW (238±203 vs 173±127 mmHg%, p=0.002). Conversely, MWE did not change early after intervention (90.4±6.2 vs 91.4±5.1%, p=0.113). After TAVI, 32 patients (36.4%) developed LV dyssynchrony due to LBBB or pacemaker implantation. When the population was divided according to the presence or absence of LV dyssynchrony at 30-day follow-up, a significant reduction in GWW was found only in the those without dyssynchrony (241±229 vs 142±103 mmHg% before and after TAVI, p<0.001). Consistently, in this subgroup, MWE significantly improved after TAVI (90±7 vs 93±5%, p=0.001), while a trend of MWE reduction was observed in patients who developed dyssynchrony after TAVI (91±5 vs 89±5%, p=0.110). In the overall population, a 30-day value of MWE≤92% was associated with an increased rate of cardiovascular events (composite of all-cause death and rehospitalization for heart failure) at 1-year follow-up (29.5% vs 4.8%, long rank p=0.003). In multivariable Cox-regression analysis, adjusted for confounders, GWE after TAVI (HR: 0.892, CI: 0.817–0.974; p=0.011) was independently associated with events at 1-year follow-up.
Conclusions
In patients with severe AS undergoing TAVI a significant reduction of GWW and improvement of MWE can be detected only in those who do not develop LV dyssynchrony. In this setting, MWE≤92% early after TAVI is associated with poor outcome. Thus, MWE could represent an alternative tool for myocardial function assessment and prognostic evaluation in patients receiving TAVI.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- F Ilardi
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - R Manzo
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - A Franzone
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - D Angellotti
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - M Avvedimento
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - C Iapicca
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - L Manzi
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - N Verde
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - F Simonetti
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - D Castiello
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - A Leone
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - A Mariani
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - R Piccolo
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - P Cirillo
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
| | - G Esposito
- Federico II University Hospital, Advanced Biomedical Sciences , Naples , Italy
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4
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Canale M, Coviello K, Solarino G, Del Meglio J, Simonetti F, Venturini E, Camerini A, Maurea N, Bisceglia I, Tessa C, Casolo G. P147 RECOVERY OF CHEMOTHERAPY RELATED ACUTE HEART FAILURE BY THE COMBINED USE OF SACUBITRIL VALSARTAN AND WEARABLE CARDIOVERTER DEFIBRILLATOR. A NOVEL WINNING COMBINATION IN CARDIO–ONCOLOGY. Eur Heart J Suppl 2022. [DOI: 10.1093/eurheartj/suac012.142] [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: 11/12/2022]
Abstract
Abstract
Effective anticancer treatments have dramatically improved the outcome of cancer patients but cardiac toxicity reduces their clinical efficacy in a non–negligible percentage of patients. Sacubitril/valsartan is a new paradigm in the treatment of chronic heart failure with reduced ejection fraction due to the enhancement of natriuretic peptides’ properties when coupled with a blocking effect on the AT1 angiotensin receptors. As with other clinical conditions of heart failure with potentially reversible declines in cardiac function, the wearable cardioverter defibrillator is a valid tool for protection against sudden death until recovery occurs. We report a case series of four patients with chemotherapy–related acute cardiac failure with severely reduced cardiac function. They were successfully treated with sacubitril/valsartan while being protected from malignant arrhythmias by the use of a wearable cardioverter defibrillator until the recovery of cardiac function. Sacubitril/valsartan was confirmed to be effective in anthracycline–related cardiac toxicity and the wearable cardioverter defibrillator should be considered as a support tool even in the oncology patient.
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Affiliation(s)
- M Canale
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - K Coviello
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - G Solarino
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - J Del Meglio
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - F Simonetti
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - E Venturini
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - A Camerini
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - N Maurea
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - I Bisceglia
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - C Tessa
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
| | - G Casolo
- CARDIOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; EMATOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA OSPEDALE CIVILE, CECINA; ONCOLOGIA OSPEDALE VERSILIA, LIDO DI CAMAIORE; CARDIOLOGIA ISTITUTO NAZIONALE TUMORI, IRCCS FONDAZIONE PASCALE, NAPOLI; SERVIZI CARDIOLOGICI INTEGRATI, AZIENDA OSPEDALIERA SAN CAMILLO FORLANINI, ROMA; RADIOLOGIA, NUOVO OSPEDALE APUANO, MASSA
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5
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Camerini C, Sant'Antonio E, Ginori A, Pellegri M, De Gaudio C, Banti E, Ciliberti V, Parrini M, Bozzoli L, Simonetti F, Capochiani E. Unusual presentation of extranodal diffuse large B-cell lymphoma in a solid-organ recipient during long-term immunosuppressive treatment. Tumori 2021; 107:NP127-NP130. [PMID: 34423702 DOI: 10.1177/03008916211040862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Posttransplant lymphoproliferative disorders (PTLDs) refer to a group of diseases, including diffuse large B-cell lymphoma (DLBCL), that develop after solid organ transplantation or hematopoietic stem cell transplantation. Extranodal involvement in PTLDs is common. Reports about exclusive bone marrow involvement are rare. CASE DESCRIPTION A 70-year-old woman, who had undergone kidney transplantation in 2018, was diagnosed with exclusively extranodal, Epstein-Barr virus-negative DLBCL, with bone marrow and spleen involvement, during long-term immunosuppression. She achieved complete remission with combined immunochemotherapy and temporary hold of immunosuppression. CONCLUSIONS This case shows an uncommon clinical presentation of DLBCL, which was challenging to diagnose, being entirely extranodal. The favorable clinical course relied on timely diagnosis and a multidisciplinary approach. Long-term consequences of posttransplant immunosuppression require a high level of suspicion for an appropriate management, aimed at preserving the graft while eradicating the lymphoproliferative disorder.
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Affiliation(s)
- C Camerini
- Hematology Unit, Center for Translational Medicine, Azienda USL Toscana Nord-Ovest, Livorno-Lucca-Viareggio, Italy
| | - E Sant'Antonio
- Hematology Unit, Center for Translational Medicine, Azienda USL Toscana Nord-Ovest, Livorno-Lucca-Viareggio, Italy
| | - A Ginori
- Pathology Unit, "Monterosso" Polyspecialistic Center, Carrara, Italy
| | - M Pellegri
- Nuclear Medicine Unit, Ospedale San Luca, Lucca, Italy
| | - C De Gaudio
- Nuclear Medicine Unit, Ospedale San Luca, Lucca, Italy
| | - E Banti
- Nuclear Medicine Unit, Ospedale San Luca, Lucca, Italy
| | - V Ciliberti
- Nuclear Medicine Unit, Ospedale San Luca, Lucca, Italy
| | - M Parrini
- Nephrology Unit, Ospedale San Luca, Lucca, Italy
| | - L Bozzoli
- Nephrology Unit, Ospedale San Luca, Lucca, Italy
| | - F Simonetti
- Hematology Unit, Center for Translational Medicine, Azienda USL Toscana Nord-Ovest, Livorno-Lucca-Viareggio, Italy
| | - E Capochiani
- Hematology Unit, Center for Translational Medicine, Azienda USL Toscana Nord-Ovest, Livorno-Lucca-Viareggio, Italy
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6
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Boritz E, Darko S, Simonetti F, Wells D, Wu X, Swaszek L, Wolf G, Hoh R, Vostal A, Ober A, Hughes M, Bunis D, Migueles S, Casazza J, Koup R, Connors M, Moir S, Martin J, Maldarelli F, Hughes S, Deeks S, Douek D. Uncovering mechanisms of HIV persistence in HIV controllers by HIV sequence analysis in CD4 T cell subsets. J Virus Erad 2015. [DOI: 10.1016/s2055-6640(20)31314-5] [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: 10/23/2022] Open
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7
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Michelassi PL, Calderazzi A, Camerini E, Simonetti F. Indications for rapid sequence urography after washout (reinjection) in the diagnosis of renovascular hypertension. Contrib Nephrol 2015; 11:138-41. [PMID: 699579 DOI: 10.1159/000401792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
38 hypertensive patients suspected of renovascular hypertension were examined with rapid sequence urography, washout, aortography or selective renal arteriography. When discordant results were found between rapid sequence urography and washout, we used a particularly helpful procedure which we define reinjection or rapid sequence urography after washout: washout is followed by the injection of a second 50-cm3 dose of contrast agent and five more roentgenograms at 1-min intervals. In our series, reinjection allowed correct diagnosis in 66% of the cases with discordant results and confirmed diagnosis in 83% of the cases of renovascular hypertension.
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8
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Del Corso L, Bacigalupo A, Balleari E, Bellodi A, Calzamiglia T, Da Col A, D'elia P, Dominietto A, Favorini S, Forni G, Galimberti S, Ghio M, Ghio R, Salvetti C, Ubezio G, Vignolo L, Molinari E, Ghiso A, Drousseau M, Simonetti F, Goretti R, Tassara R, Racchi O, Scudeletti M, Arboscello E, Gianluca F. 301 IRON OVERLOAD AND IRON CHELATION THERAPY WITH DEFERASIROX IN TRANSFUSION-DEPENDENT PATIENTS WITH MYELODYSPLASTIC SYNDROMES. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30302-7] [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: 10/23/2022]
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9
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Clerici CA, Giacon B, Veneroni L, Ferrari A, Luksch R, Meazza C, Polastri D, Simonetti F, Massimino M. [Psycho-organic diseases in children and adolescents affected by pediatric neoplasms]. Minerva Pediatr 2013; 65:651-667. [PMID: 24217634] [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: 06/02/2023]
Abstract
At Pediatric Oncology Centers, psychological intervention and psychotherapy are generally offered to children and adolescents for supporting their adjustment to disease and treatment. The clinical practice, however, point out that cognitive and emotional symptoms, such as psychic distortions, fatigue, anxiety, irritability and depression, are sustained by biological mechanisms connected with disease and treatment and not respondent to psychological consultation and to other psychosocial resources. These manifestations could interfere with treatment or with the long-term adjustment and call for psychopharmacological treatments. Biological factors able to cause these alterations are not yet studied in depth in clinical tradition and scientific literature on the integration of psychological and psychopharmacological intervention in pediatric oncology is still poor. In this paper organic components of psychic and behavioral alterations in the course of disease are illustrated, considering the symptoms, causes and possible remedies in the light of the most recent interdisciplinary views. The main mechanism connected with oncologic treatments - chemotherapy, surgery, radiotherapy - and responsible for psycho-organic alterations in children and adolescent with cancer are also described.
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Affiliation(s)
- C A Clerici
- Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti Università degli Studi di Milano, Milano, Italia2 SSD Psicologia Clinica, Fondazione IRCCS, Istituto Nazionale dei Tumori, Milano, Italia -
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10
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Quintero R, Simonetti F. Rayleigh wave scattering from sessile droplets. Phys Rev E Stat Nonlin Soft Matter Phys 2013; 88:043011. [PMID: 24229280 DOI: 10.1103/physreve.88.043011] [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] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 08/28/2013] [Indexed: 05/08/2023]
Abstract
Radiation of energy by large-amplitude leaky Rayleigh waves is regarded as one of the key physical mechanisms regulating the actuation and manipulation of droplets in surface acoustic wave (SAW) microfluidic devices. The interaction between a SAW and a droplet is highly complex and is presently the subject of extensive research. This paper investigates the existence of an additional interaction mechanism based on the propagation of quasi-Stoneley waves inside sessile droplets deposited on a solid substrate. In contrast with the leaky Rayleigh wave, the energy of the Stoneley wave is confined within a thin fluid layer in contact with the substrate. The hypothesis is confirmed by three-dimensional finite element simulations and ultrasonic scattering experiments measuring the reflection of Rayleigh waves from droplets of different diameters. Moreover, real-time monitoring of the droplet evaporation process reveals a clear correlation between the droplet contact angle and the spectral information of the reflected Rayleigh signal, thus paving the way for ultrasonic measurements of surface tension.
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Affiliation(s)
- R Quintero
- School of Aerospace Systems, University of Cincinnati, Cincinnati, Ohio 45221, USA
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11
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Huthwaite P, Simonetti F, Duric N. Combining time of flight and diffraction tomography for high resolution breast imaging: initial in vivo results (L). J Acoust Soc Am 2012; 132:1249-52. [PMID: 22978851 DOI: 10.1121/1.4742697] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Ultrasound tomography (UST) is being developed to address the limitations of mammography in breast cancer detection. Central to the success of UST is the possibility of obtaining high-resolution images of tissue mechanical properties across the whole breast. A recent paper [Huthwaite and Simonetti, J. Acoust. Soc. Am. 130, 1721-1734 (2011)] made use of a numerical phantom to demonstrate that sufficient image resolution can be obtained by simply treating refraction and diffraction effects in consecutive steps through the combination of ray-based time of flight and diffraction tomography. This letter presents the first experimental demonstration of the method using phantom and invivo data from a cancer patient.
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Affiliation(s)
- P Huthwaite
- Department of Mechanical Engineering, Imperial College, London, SW7 2AZ, United Kingdom
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12
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Huthwaite P, Simonetti F. High-resolution imaging without iteration: a fast and robust method for breast ultrasound tomography. J Acoust Soc Am 2011; 130:1721-34. [PMID: 21895109 DOI: 10.1121/1.3613936] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Breast ultrasound tomography has the potential to improve the cost, safety, and reliability of breast cancer screening and diagnosis over the gold-standard of mammography. Vital to achieving this potential is the development of imaging algorithms to unravel the complex anatomy of the breast and its mechanical properties. The solution most commonly relied upon is time-of-flight tomography, but this exhibits low resolution due to the presence of diffraction effects. Iterative full-wave inversion methods present one solution to achieve higher resolution, but these are slow and are not guaranteed to converge to the correct solution. Presented here is HARBUT, the hybrid algorithm for robust breast ultrasound tomography, which utilizes the complementary strengths of time-of-flight and diffraction tomography resulting in a direct, fast, robust and accurate high resolution method of reconstructing the sound speed through the breast. The algorithm is shown to produce accurate reconstructions with realistic data from a complex three-dimensional simulation, with masses as small as 4 mm being clearly visible.
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Affiliation(s)
- P Huthwaite
- Department of Mechanical Engineering, Imperial College, London, SW7 2AZ, United Kingdom
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13
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Wenzel C, Meister M, Bleich S, Hillemacher T, Choi Y, Sudraba V, Dave V, Cacciaglia R, Loche A, Corsico N, Priestley A, Loche A, Simonetti F, Cacciaglia R, Rupp CI, Kemmler G, Kurz M, Hinterhuber H, Fleischhacker WW, Wodarz N, Grundl A, Weber F, Appel S, Arnold L, Tretter F, Sudraba V, Rancans E, Dave V, Barrett SP, Kogoj D, Addolorato G, Ferrulli A, Mouzas I, Okruhlica L, Poldrugo F, Schlaff G, Zima T, Lesch O, Walter H. TREATMENT * P71 * PHARMACOLOGICAL TREATMENT STRATEGIES IN ALCOHOL DETOXIFICATION AND RELAPSE PREVENTION: RESULTS OF A NATIONAL ONLINE SURVEY. Alcohol Alcohol 2011. [DOI: 10.1093/alcalc/agr121] [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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14
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Simonetti F, Huang L, Duric N, Littrup P. Diffraction and coherence in breast ultrasound tomography: A study with a toroidal array. Med Phys 2009; 36:2955-65. [DOI: 10.1118/1.3148533] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- F. Simonetti
- Department of Mechanical Engineering, Imperial College, London SW7 2AZ, United Kingdom and MS D443, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - L. Huang
- MS D443, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - N. Duric
- Karmanos Cancer Institute, Wayne State University, 4100 John R, Detroit, Michigan 48201
| | - P. Littrup
- Karmanos Cancer Institute, Wayne State University, 4100 John R, Detroit, Michigan 48201
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15
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Simonetti F, Huang L, Duric N, Rama O. Imaging beyond the Born approximation: an experimental investigation with an ultrasonic ring array. Phys Rev E Stat Nonlin Soft Matter Phys 2007; 76:036601. [PMID: 17930351 DOI: 10.1103/physreve.76.036601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2006] [Revised: 04/27/2007] [Indexed: 05/25/2023]
Abstract
The classical diffraction limit excludes the possibility of resolving features of an object which are spaced less than half a wavelength apart when scattering experiments are performed from the far field. However, recently it has been shown that this limit could be a consequence of the Born approximation that neglects the distortion of the probing wave as it travels through the object to be imaged. Such a distortion, which is due to the multiple scattering phenomenon, can encode unlimited resolution in the radiating component of the scattered field thus leading to super resolution. In this context, a resolution better than lambda/3 has been reported in the case of elastic wave probing [F. Simonetti, Phys. Rev. E 73, 036619 (2006)], lambda being the wavelength of the wave illuminating the object. This paper demonstrates a resolution better than lambda/4 and approaching lambda/6 for objects immersed in a water bath probed by means of a ring transducer array that excites and detects ultrasonic pressure waves in a full view configuration. This is achieved despite the presence of a high level of noise in the measurements (the signal to noise ratio was below 0 dB). Moreover, while previous papers have provided experimental evidence of super resolution for objects small compared to the wavelength, here the case of extended objects is also investigated.
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Affiliation(s)
- F Simonetti
- Department of Mechanical Engineering, Imperial College, London SW7 2AZ, United Kingdom.
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16
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Duric N, Littrup P, Glide C, Li C, Huang L, Pratt R, Quan Y, Simonetti F. TH-E-L100J-06: Detection of Breast Cancer with Ultrasound Tomography. Med Phys 2007. [DOI: 10.1118/1.2761742] [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: 11/07/2022] Open
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17
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Massimino M, Simonetti F, Balestrini MR, Spreafico F, La Spina M, Terenziani M, Gandola L. Transitory, spontaneously recovering, peripheral facial nerve palsy after vinorelbine administration. Neurol Sci 2006; 27:110-3. [PMID: 16816907 DOI: 10.1007/s10072-006-0609-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2005] [Accepted: 01/24/2006] [Indexed: 11/24/2022]
Abstract
Childhood intrinsic brain-stem gliomas have a dismal prognosis. Different treatment strategies have been adopted over the years without changing the final outcome of this ominous disease. Due to this grim prognosis, experimental therapeutic designs are worthwhile. Vinorelbine is a semi-synthetic vinca alkaloid that has demonstrated a broad spectrum of activity both in in vitro and in vivo experimental systems. By adopting vinorelbine during and after focal radiotherapy in the last two years, we have tried to evocate its known synergistic effect in brain-stem tumour control. Vinorelbine was administered intravenously before, during and after radiotherapy on tumour bed for a total duration of 10 months. All the consecutive patients whose clinical and radiological features corresponded to the diagnosis of an intrinsic brain-stem tumour, i.e., diffuse pontine glioma, have been accrued to this treatment protocol since July 2002. A histological assessment was not required. All patients were treated during hospital stay or in the outpatient clinic at the Istituto Nazionale Tumori of Milan (n=12) and at the Pediatric Clinic of Policlinico in Catania (n=1). Two of the thirteen patients so far treated have developed multiple subsequent, and transitory, episodes of monolateral peripheral facial nerve palsy during vinorelbine administration. The palsy always completely and spontaneously resolved at a short interval-around 30 min-after the end of the drug infusion. Obvious tumour progression was excluded by means of MRI; therefore the drug was administered as scheduled until the end of the treatment. We describe possible neurological and oncological implications of this unusual side effect, until now not reported in any other series dealing with vinorelbine as adjuvant treatment.
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Affiliation(s)
- M Massimino
- Neuro-Oncology Functional Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori, Via Venezian 1, I-20133, Milan, Italy.
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18
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Simonetti F. Multiple scattering: the key to unravel the subwavelength world from the far-field pattern of a scattered wave. Phys Rev E Stat Nonlin Soft Matter Phys 2006; 73:036619. [PMID: 16605689 DOI: 10.1103/physreve.73.036619] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2005] [Indexed: 05/08/2023]
Abstract
For more than a century the possibility of imaging the structure of a medium with diffracting wave fields has been limited by the tradeoff between resolution and imaging depth. While long wavelengths can penetrate deep into a medium, the resolution limit precludes the possibility of observing subwavelength structures. Near-field microscopy has recently demonstrated that the resolution limit can be overcome by bringing a probing sensor within one wavelength distance from the surface to be imaged. This paper extends the scope of near-field microscopy to the reconstruction of subwavelength structures from measurements performed in the far-field. It is shown that the distortion undergone by a wave field as it travels through an inhomogeneous medium and the subsequent generation of local evanescent fields encode subwavelength information in the far-field due to multiple scattering within the medium. This argument is proved theoretically and supported by a limited view experiment performed with elastic waves in which an image with a resolution better than a third of the wavelength is achieved.
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Affiliation(s)
- F Simonetti
- Department of Mechanical Engineering, Imperial College, London SW7 2AZ, United Kingdom.
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19
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Simonetti F, Faucci A. [Application of the legislation on safety occupational hygiene in the Military Navy]. G Ital Med Lav Ergon 2006; 28:63-6. [PMID: 16705890] [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] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The paper analyses the consequences of the promulgation legislative decree 626/94 on the sanitary organization of the Armed Forces and, particularly, of the Italian Military Navy. In this context, the authors describe the current safety and occupational hygiene organization, the tasks of the vigilance organs, and the actuative modalities of preventive measures on the ships (during navigation and in shipyard).
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Terracciano A, Abdel-Khalek AM, Ádám N, Adamovová L, Ahn CK, Ahn HN, Alansari BM, Alcalay L, Allik J, Angleitner A, Avia A, Ayearst LE, Barbaranelli C, Beer A, Borg-Cunen MA, Bratko D, Brunner-Sciarra M, Budzinski L, Camart N, Dahourou D, De Fruyt F, de Lima MP, del Pilar GEH, Diener E, Falzon R, Fernando K, Ficková E, Fischer R, Flores-Mendoza C, Ghayur MA, Gülgöz S, Hagberg B, Halberstadt J, Halim MS, Hřebíčková M, Humrichouse J, Jensen HH, Jocic DD, Jónsson FH, Khoury B, Klinkosz W, Knežević G, Lauri MA, Leibovich N, Martin TA, Marušić I, Mastor KA, Matsumoto D, McRorie M, Meshcheriakov B, Mortensen EL, Munyae M, Nagy J, Nakazato K, Nansubuga F, Oishi S, Ojedokun AO, Ostendorf F, Paulhus DL, Pelevin S, Petot JM, Podobnik N, Porrata JL, Pramila VS, Prentice G, Realo A, Reátegui N, Rolland JP, Rossier J, Ruch W, Rus VS, Sánchez-Bernardos ML, Schmidt V, Sciculna-Calleja S, Sekowski A, Shakespeare-Finch J, Shimonaka Y, Simonetti F, Sineshaw T, Siuta J, Smith PB, Trapnell PD, Trobst KK, Wang L, Yik M, Zupančič A, McCrae RR. National character does not reflect mean personality trait levels in 49 cultures. Science 2005; 310:96-100. [PMID: 16210536 PMCID: PMC2775052 DOI: 10.1126/science.1117199] [Citation(s) in RCA: 165] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Most people hold beliefs about personality characteristics typical of members of their own and others' cultures. These perceptions of national character may be generalizations from personal experience, stereotypes with a "kernel of truth," or inaccurate stereotypes. We obtained national character ratings of 3989 people from 49 cultures and compared them with the average personality scores of culture members assessed by observer ratings and self-reports. National character ratings were reliable but did not converge with assessed traits. Perceptions of national character thus appear to be unfounded stereotypes that may serve the function of maintaining a national identity.
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Affiliation(s)
- A. Terracciano
- National Institute on Aging, NIH, DHHS, Gerontology Research Center, 5600 Nathan Shock Drive, Baltimore, MD 21224
| | - A. M. Abdel-Khalek
- Department of Psychology, Faculty of Social Sciences, University of Kuwait, P.O. Box 68168, 71962, Kaifan, Kuwait
| | - N. Ádám
- Faculty of Education and Psychology, Lóránd Eötvös University, 1075 Budapest, Kazinczy u. 23-25, Hungary
| | - L. Adamovová
- Institute of Experimental Psychology, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava, Slovak Republic, 813 64
| | - C.-k. Ahn
- Department of Education, Pusan National University, 30 Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea
| | - H.-n. Ahn
- Department of Psychology, Pusan National University, 30 Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea
| | - B. M. Alansari
- Department of Psychology, Faculty of Social Sciences, University of Kuwait, P.O. Box 68168, 71962, Kaifan, Kuwait
| | - L. Alcalay
- Escuela de Psicologia, Pontificia Universidad Catolica de Chile, Vicuna Mackenna 4860, Macul, Santiago, Chile
| | - J. Allik
- Department of Psychology, University of Tartu, Tiigi 78, Tartu, Estonia, 50410
| | - A. Angleitner
- University of Bielefeld, Department of Psychology, P.O. Box 100131, Bielefeld, Germany, D-33501
| | - A. Avia
- Facultad de Psicología, Universidad Complutense de Madrid, Madrid, Spain
| | - L. E. Ayearst
- Department of Psychology, York University, 4700 Keele Street, Toronto, ON, Canada, M3J 1P3
| | - C. Barbaranelli
- Department of Psychology, University of Rome “La Sapienza,” Via Dei Marsi 78, 00185 Rome, Italy
| | - A. Beer
- Department of Psychology, University of Iowa, E11 Seashore Hall, Iowa City, IA 52242-1407
| | - M. A. Borg-Cunen
- Department of Psychology, University of Malta, Msida MSD 06 Malta
| | - D. Bratko
- Odsjek za Psihologiju, Filozofski Fakultet u Zagrebu, I. Lucica 3, Zagreb, Croatia, 10000
| | - M. Brunner-Sciarra
- Facultad de Psicología, Universidad Peruana Cayetano Heredia, Av. Armendáriz 497 Miraflores, Lima, Peru
| | - L. Budzinski
- Department of Psychology, University of Melbourne, Parkville VIC, 3010, Australia
| | - N. Camart
- Laboratoire de Psychologie Clinique des Faits Culturels, Universite de Paris-X, 200, Avenue de la Republique, Nanterre, France, 92001
| | - D. Dahourou
- Department of Psychology, University of Ouagadougou, 03 B.P. 7021 Ouagadougou 03, Burkina Faso
| | - F. De Fruyt
- Department of Psychology, H. Dunantlaan, 2, Ghent, Belgium, B-9000
| | - M. P. de Lima
- Faculdade de Psicologia, Ciencias da Educacao, Universidade de Coimbra, Coimbra, Portugal
| | - G. E. H. del Pilar
- Department of Psychology, University of the Philippines, Diliman, Quezon City, 1101, Philippines
| | - E. Diener
- Department of Psychology, University of Illinois, 603 E. Daniel St., Champaign, IL, US, 61820
| | - R. Falzon
- Department of Psychology, University of Malta, Msida MSD 06 Malta
| | - K. Fernando
- Department of Psychology, University of Otago, PO Box 56, Dunedin, New Zealand
| | - E. Ficková
- Institute of Experimental Psychology, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava, Slovak Republic, 813 64
| | - R. Fischer
- School of Psychology, PO Box 600, Victoria University of Wellington, Wellington, New Zealand
| | - C. Flores-Mendoza
- U Federal de Minas Gerais, Dept de Psicologia, Sala 4042, Av. Antonio Carlos 6627, Belo Horizonte, Brazil
| | - M. A. Ghayur
- Al Akhawayn University, Ifrane, Morocco; now at Department of Psychology, San Diego State University, 5500 Campanile Dr., San Diego, CA 92182-4611
| | - S. Gülgöz
- Koç University, Sariyer 80910, Istanbul, Turkey
| | - B. Hagberg
- Unit of Gerontology and Care for the Elderly, Lund University, Box 187, S-222 20 Lund, Sweden
| | - J. Halberstadt
- Department of Psychology, University of Otago, PO Box 56, Dunedin, New Zealand
| | - M. S. Halim
- Faculty of Psychology, Atma Jaya Indonesia Catholic University, Jl. Jenderal Sudirman kav-51, Jakarta Selatan-12930, Indonesia
| | - M. Hřebíčková
- Academy of Sciences of the Czech Republic, Vevří 97, 602 00 Brno, Czech Republic
| | - J. Humrichouse
- Department of Psychology, University of Iowa, E11 Seashore Hall, Iowa City, IA 52242-1407
| | - H. H. Jensen
- Department of Health Psychology, Institute of Public Health, University of Copenhagen, Blegdamsvej 3, Copenhagen N, Denmark, DK-2200
| | - D. D. Jocic
- Institute for Psychiatry, Pasterova 2, Belgrade, Yugoslavia
| | - F. H. Jónsson
- University of Iceland, Faculty of Social Science, Oddi, Sturlugata, 101 Reykjavík, Iceland
| | - B. Khoury
- Department of Psychiatry, American University of Beirut Medical Center, P.O.Box 11-0236, Riad El-Solh, Beirut 1107 2020 Lebanon
| | - W. Klinkosz
- Catholic University of Lublin, Department of Psychology, A1. Raclawickie 14, Lublin 20-950 Poland
| | - G. Knežević
- Department of Psychology, University of Belgrade, Cika Ljubina 18-20, 11000 Belgrade, Yugoslavia
| | - M. A. Lauri
- Department of Psychology, University of Malta, Msida MSD 06 Malta
| | - N. Leibovich
- Faculty of Psychology, University of Buenos Aires, Buenos Aires, Argentina
| | - T. A. Martin
- Department of Psychology, Susquehanna University, 514 University Avenue, Selinsgrove, PA 17870
| | - I. Marušić
- Odsjek za Psihologiju, Filozofski Fakultet u Zagrebu, I. Lucica 3, Zagreb, Croatia, 10000
| | - K. A. Mastor
- Center for General Studies, Universiti Kebangsaan Malaysia, Selangor Darul Ehsan, Malaysia
| | - D. Matsumoto
- Department of Psychology, San Francisco State University, 1600 Holloway Avenue, San Francisco, CA 94132
| | - M. McRorie
- School of Psychology, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland, UK
| | - B. Meshcheriakov
- Department of Psychology, International University “Dubna,” 19, Universitetskaya str., Dubna, Moscow area, Russia, 141980
| | - E. L. Mortensen
- Department of Health Psychology, Institute of Public Health, University of Copenhagen, Blegdamsvej 3, Copenhagen N, Denmark, DK-2200
| | - M. Munyae
- Center for Continuing Education, University of Botswana, Private Bag UB 0022, Gaborone, Botswana
| | - J. Nagy
- Faculty of Education and Psychology, Lóránd Eötvös University, 1075 Budapest, Kazinczy u. 23-25, Hungary
| | - K. Nakazato
- Department of Psychology, Iwate Prefectural University, 152-52 Sugo, Takizawa, Iwate, 020-0193 Japan
| | - F. Nansubuga
- Department of Organizational Psychology, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - S. Oishi
- Department of Psychology, University of Virginia, P. O. Box 400400, Charlottesville, VA 22904-4400
| | - A. O. Ojedokun
- Department of Psychology, University of Ibadan, Ibadan, Nigeria
| | - F. Ostendorf
- University of Bielefeld, Department of Psychology, P.O. Box 100131, Bielefeld, Germany, D-33501
| | - D. L. Paulhus
- Department of Psychology, The University of British Columbia, Vancouver, Canada V6T 1Z4
| | - S. Pelevin
- Department of Psychology, International University “Dubna,” 19, Universitetskaya str., Dubna, Moscow area, Russia, 141980
| | - J.-M. Petot
- Laboratoire de Psychologie Clinique des Faits Culturels, Universite de Paris-X, 200, Avenue de la Republique, Nanterre, France, 92001
| | - N. Podobnik
- Psychiatric Hospital of Idrija, Pot Sv. Antona 49 Idrija, 5280 Slovenia
| | - J. L. Porrata
- Escuela Graduada de Administracion Publica, Universidad de Puerto Rico, Rio Piedras, Puerto Rico
| | - V. S. Pramila
- Department of Psychology, Andhra University, Visakhapatnam 530 003, Andhra Pradesh, India
| | - G. Prentice
- School of Psychology, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland, UK
| | - A. Realo
- Department of Psychology, University of Tartu, Tiigi 78, Tartu, Estonia, 50410
| | - N. Reátegui
- Facultad de Psicología, Universidad Peruana Cayetano Heredia, Av. Armendáriz 497 Miraflores, Lima, Peru
| | - J.-P. Rolland
- Université Paris 10, STAPS Dept, 200 Avenue de la République, Nanterre, France, 92001
| | - J. Rossier
- Institute of Psychology, University of Lausanne, BFSH 2 Dorigny, Lausanne, Switzerland, CH-1015
| | - W. Ruch
- Psychologisches Institut, Zürichbergstrasse 43, 8044 Zürich, Switzerland
| | - V. S. Rus
- Faculty of Arts, University of Ljubljana, Ljubljana, Slovenia
| | | | - V. Schmidt
- Faculty of Psychology, University of Buenos Aires, Buenos Aires, Argentina
| | | | - A. Sekowski
- Catholic University of Lublin, Department of Psychology, A1. Raclawickie 14, Lublin 20-950 Poland
| | - J. Shakespeare-Finch
- School of Psychology & Counselling, Queensland University of Technology; now at School of Psychology, University of Tasmania, Locked Bag 1342, Launceston, TAS, 7250 Australia
| | - Y. Shimonaka
- Department of Psychology, Bunkyo Gakuin University, 1196, Kamekubo, Oi-machi, Iruma-gun, Saitama, 356-8533 Japan
| | - F. Simonetti
- Escuela de Psicologia, Pontificia Universidad Catolica de Chile, Vicuna Mackenna 4860, Macul, Santiago, Chile
| | - T. Sineshaw
- Department of Psychology, Ramapo College of New Jersey, 505 Ramapo Valley Road, Mahwah, NJ 07430
| | - J. Siuta
- Institute of Psychology, Jagiellonian University, Krakow, Poland
| | - P. B. Smith
- Department of Psychology, University of Sussex, Brighton, UK
| | - P. D. Trapnell
- Department of Psychology, The University of Winnipeg, 515 Portage Ave, Winnipeg, Manitoba, Canada R3B 2E9
| | - K. K. Trobst
- Department of Psychology, York University, 4700 Keele Street, Toronto, ON, Canada, M3J 1P3
| | - L. Wang
- Department of Psychology, Peking University, Beijing, People's Republic of China
| | - M. Yik
- Division of Social Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - A. Zupančič
- Ministry for Health, Štefanova ulica 5, 1000 Ljubljana, Republic of Slovenia
| | - R. R. McCrae
- National Institute on Aging, NIH, DHHS, Gerontology Research Center, 5600 Nathan Shock Drive, Baltimore, MD 21224
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Abstract
The modes of vibration of an elastic plate are usually divided into propagating and nonpropagating kinds. While nonpropagating modes characterize local vibration nearby a perturbation source, which can be either an external force or a geometrical discontinuity, propagating modes carry energy along the waveguide and account for the vibration far away from the perturbation source. In this paper, by considering that the modes of an absorbing plate are always propagating, it is shown that each elastic mode consists of propagating and nonpropagating branches, which turn into a single propagating mode as soon as internal absorption is considered. Moreover, it is shown how introducing a little material damping leads to a rigorous differentiation of elastic modes when they are connected. A similar result can be obtained by loading the plate with a light fluid [Rokhlin et al., J. Acoust. Soc. Am. 85, 1074-1080 (1989)].
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Affiliation(s)
- F Simonetti
- Department of Mechanical Engineering, Imperial College, London SW7 2AZ, United Kingdom
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Caraceni A, Andreola S, Simonetti F, Celio L. Acute confusional state with fatal outcome in a cancer patient. Neurol Sci 2004; 24:424-5. [PMID: 14767692 DOI: 10.1007/s10072-003-0202-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2003] [Accepted: 10/31/2003] [Indexed: 10/26/2022]
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Simonetti F, Cawley P. Ultrasonic interferometry for the measurement of shear velocity and attenuation in viscoelastic solids. J Acoust Soc Am 2004; 115:157-164. [PMID: 14759006 DOI: 10.1121/1.1631944] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A method for the measurement of the shear properties of solid viscoelastic materials is presented. The viscoelastic material is cut into a cylindrical sample which is clamped between two rods. The transmission and reflection coefficient spectra of the fundamental torsional mode through the sample are measured by means of two pairs of piezoelectric transducers placed at the free ends of the rod-sample-rod system. Such spectra exhibit maxima and minima which occur approximately at the resonance frequencies of the free viscoelastic cylinder. Therefore, the shear velocity can be obtained by measuring the frequency interval between two consecutive maxima or minima. The shear attenuation is derived by best fitting the analytical expression of the reflection and transmission coefficients to the experimental spectra. The test is very quick to set up as the sample is simply clamped between the two rods.
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Affiliation(s)
- F Simonetti
- Department of Mechanical Engineering, Imperial College, London SW7 2AZ, United Kingdom
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Simonetti F, Cawley P. A guided wave technique for the characterization of highly attenuative viscoelastic materials. J Acoust Soc Am 2003; 114:158-165. [PMID: 12880029 DOI: 10.1121/1.1575749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The measurement of the acoustic properties of highly attenuative materials such as bitumen is very difficult. One possibility is to use measurements of the extent to which filling a cylindrical waveguide with the material affects the dispersion relationship of the cylinder. Torsional modes have been excited using piezoelectric transducers placed at one end of the cylinder, while the phase velocity and attenuation spectra have been measured by means of laser scanning. At each frequency, under the hypothesis of linear viscoelasticity, the phase velocity and attenuation of the fundamental torsional mode have been calculated as a function of the bulk shear velocity and the bulk shear attenuation of the inner core at that frequency. The resulting phase velocity and guided wave attenuation contour plots have been employed for deriving the unknown shear properties from the measured velocity and attenuation of the guided wave. The monochromaticity of the approach has not required a particular frequency dependence of the material properties to be assumed. Results for bitumen are given.
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Affiliation(s)
- F Simonetti
- Department of Mechanical Engineering, Imperial College, London SW7 2AZ, United Kingdom
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25
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Massimino M, Giardini R, Cefalo G, Simonetti F, Pollo B, Giombini S, Tesoro-Tess JD, Ponzoni M, Patriarca C. Intravascular lymphomatosis (IL) in a child mimicking a posterior fossa tumor. J Neurooncol 2001; 51:47-50. [PMID: 11349880 DOI: 10.1023/a:1006476701534] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Intravascular lymphomatosis (IL) is a rare entity only recently included in lymphoma classification, whose main feature is the exclusive or predominant growth of neoplastic cells within blood vessels. The vast majority of the patients affected by IL belong to the 7th or 8th decade of life and present with skin rash or CNS diffuse necrotic or demyelinating lesions. Case report. SS, a 13-year-old girl, was admitted to a Neurosurgery Unit because of endocranic hypertension, where, after CT and MRI documenting a IV ventricle 3 cm diameter tumor, she was submitted to complete tumor excision: extemporary diagnosis was suggestive of medulloblastoma. When referred to us she had persistent fever with normal blood and spinal fluid cultures. Whole CNS MRI did not give evidence of residual or metastatic disease while CSF cytology showed only pleiocytosis. Treatment was started according to our ongoing protocol for medulloblastoma with pre-radiation chemotherapy. Before delivering radiotherapy (RT), upon review of histologic specimens, the definitive diagnosis of IL B-phenotype was made. The girl was re-admitted and, after a complete re-staging, chemotherapy was intensified according to our schedule for high-grade B-cell lymphoma and CNS was irradiated up to a total dose of 25 Gy. She remained alive in continuous complete remission at 21 months after diagnosis. The case here reported is unique for age, tumor presentation, and, so far, favourable outcome, in spite of the delayed histological diagnosis.
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Affiliation(s)
- M Massimino
- Unit of Pediatrics, Istituto Nazionale Tumori, Milan, Italy.
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Abstract
We report the difference existing between two clinical syndromes: Spiller's syndrome is caused by a complete involvement of the medial hemimedulla, while Déjérine's syndrome is determined by lesions restricted to the anterior portion of the medial hemimedulla and is characterized by hypoglossal nerve palsy and contralateral hemiparesis.
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Affiliation(s)
- P Pergami
- Neurological Institute ISCCS C. Mondino, Pavia, Italy
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Massimino M, Cefalo G, Trecate G, Simonetti F. Case 1. Sucking and recovery after brain surgery. J Clin Oncol 2001; 19:273-4. [PMID: 11134223 DOI: 10.1200/jco.2001.19.1.273] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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28
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Simonati A, Santorum E, Tessa A, Polo A, Simonetti F, Bernardina BD, Santorelli FM, Rizzuto N. A CLN2 gene nonsense mutation is associated with severe caudate atrophy and dystonia in LINCL. Neuropediatrics 2000; 31:199-201. [PMID: 11071145 DOI: 10.1055/s-2000-7453] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 10/16/2022]
Abstract
Clinical features and results of the blood DNA analysis are reported of a child affected with a distinct phenotype of the late infantile form of neuronal ceroid-lipofuscinosis (LINCL). He was affected by microcephaly and hypotonia since the fourth month of life; acquisition of motor and language abilities was severely impaired, and a disorder of communication with stereotyped movements followed. By age four, he developed signs and symptoms of progressive myoclonic encephalopathy along with motor and cognitive deterioration. Extrapyramidal signs were associated with neuroradiological findings of marked atrophy of the caudate nucleus. Specific curvilinear bodies were observed in blood lymphocytes and skin biopsy. Homozygous, nonsense mutation in the CLN2 gene was found giving origin to an Arg208stop, which produces an early transcription termination with loss of translation of about 50% of the gene product. Any relationship between the severe clinical features of our patient and the homozygous mutation here reported must be investigated on a larger number of LINCL patients bearing the same mutation.
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Affiliation(s)
- A Simonati
- Department of Neurological Sciences, University of Verona, Italy.
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Ceroni M, Poloni TE, Tonietti S, Fabozzi D, Uggetti C, Frediani F, Simonetti F, Malaspina A, Alimonti D, Celano M, Ferrari M, Carrera P. Migraine with aura and white matter abnormalities: Notch3 mutation. Neurology 2000; 54:1869-71. [PMID: 10802804 DOI: 10.1212/wnl.54.9.1869] [Citation(s) in RCA: 25] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The authors report on an Italian family with eight affected members who show autosomal dominant migraine with prolonged visual, sensory, motor, and aphasic aura. These symptoms are associated with white matter abnormalities on brain MRI. All living affected members carry a Notch3 mutation (Arg153Cys) previously reported in cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). White matter abnormalities occur in a variable percentage of the general migraine population; CADASIL should be suspected in migraineurs with prolonged atypical aura and white matter abnormalities.
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Affiliation(s)
- M Ceroni
- Istituto Neurologico IRCCS C. Mondino, Pavia, Italy.
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Affiliation(s)
- A Caraceni
- Neurology Unit, Rehabilitation and Palliative Care Unit, National Cancer Institute, Milan, Italy
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31
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Versino M, Simonetti F, Egitto MG, Ceroni M, Cosi V, Beltrami G. Lateral gaze synkinesis on downward saccade attempts with paramedian thalamic and midbrain infarct. J Neurol Neurosurg Psychiatry 1999; 67:696-7. [PMID: 10577040 PMCID: PMC1736620 DOI: 10.1136/jnnp.67.5.696] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 11/03/2022]
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Affiliation(s)
- F Simonetti
- Neurological Department, IRCCS C. Mondino, Pavia, Italy
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33
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Simonetti F, Pergami P, Ceroni M, Ropper AH, Viviani R. About the original description of cerebellar tonsil herniation by Pierre Marie. J Neurol Neurosurg Psychiatry 1997; 63:412. [PMID: 9328272 PMCID: PMC2169704 DOI: 10.1136/jnnp.63.3.412] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [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: 02/05/2023]
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34
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Marinu Aktipi K, Simonetti F, Imbesi F, Piccolo G, Ceroni M. 5-25-06 Antineuronal antibodies in paraneoplastic cerebellar degeneration (PCD) leading to diagnosis of Hodgkin's disease. J Neurol Sci 1997. [DOI: 10.1016/s0022-510x(97)86405-2] [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: 10/17/2022]
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35
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Poloni T, Simonetti F, Imbesi F, Alfonsi E, Merlo I, Botti S, Taroni F, Ceroni M. 1-48-08 Recurrent facial palsy in HNPP. J Neurol Sci 1997. [DOI: 10.1016/s0022-510x(97)85157-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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Pergami P, Arbustini E, Butti G, Karau J, Aguzzi A, Poloni TE, Montalbetti L, Egitto MG, Simonetti F, Savoldi F, Ceroni M. Disseminated encephalitis following streptococcal infection. Ital J Neurol Sci 1996; 17:87-91. [PMID: 8742995 DOI: 10.1007/bf01995716] [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] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Various neurological disorders have been related to Streptococcus pyogenes infection. Only recently, and for the first time, it has been suggested that acute disseminated encephalitis may also complicate a streptococcal infection. The case reported in this paper seems to confirm this hypothesis.
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Affiliation(s)
- P Pergami
- Istituto di Neurologia, IRCCS, Fondazione C. Mondino, Università di Pavia, Italy
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Barletta L, Simonetti F, Karau J, Manni R, Uggetti C, Poloni TE, Pergami P, Savoldi F, Ceroni M. [Encephalitis lethargica]. Nervenarzt 1995; 66:781-4. [PMID: 7501095] [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] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We report the case of a 34-year old patient who first complained of fever, confusion and transient ophthalmoplegia and then developed akinetic mutism, frontal lobe, pyramidal tract and extrapyramidal signs. Clinical and electrophysiological data support a diagnosis of encephalitis lethargica. Magnetic resonance imaging showed hyperintensive lesions in various brain regions. The patient responded to corticosteroid treatment. Two years after the onset of the first clinical signs he had recovered completely and today, after 5 years, he shows no sign of disease.
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Affiliation(s)
- L Barletta
- Fondazione Istituto Neurologico C. Mondino, Pavia, Italien
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38
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Simonetti F, Viviani R, Ceroni M. Charles Edouard Brown-Séquard. Funct Neurol 1994; 9:303-6. [PMID: 7789870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- F Simonetti
- C. Mondino Neurological Institute, University of Pavia, Italy
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Piccolo G, Marchioni E, Maurelli M, Simonetti F, Bizzetti F, Savoldi F. Recovery from respiratory muscle failure in a sporadic case of Brown-Vialetto-Van Laere syndrome with unusually late onset. J Neurol 1992; 239:355-6. [PMID: 1512615 DOI: 10.1007/bf00867597] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Maurelli M, Marchioni E, Bosone D, Boni S, Bolzani W, Cerretano R, Simonetti F, Savoldi F. Familial adult amyotrophic lateral sclerosis: report of cases. Ital J Neurol Sci 1992; 13:75-9. [PMID: 1559787 DOI: 10.1007/bf02222892] [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] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We examined 8 cases of familial ALS (amyotrophic lateral sclerosis) in three different families from our province, admitted to our hospital between 1970 and 1989. Clinical criteria for diagnosis were satisfied in all cases; EMG was performed in 6 out of 8 patients. 4 cases showed classical onset and 4 cases bulbar onset. The average age at onset was 65.7 + 10.6 years. The average survival was 19.1 + 9.2 months. In two families two generations were affected, in the other only one. The mode of transmission was found to be autosomal dominant with variable penetrance. Neither environmental nor toxic factors seemed to be involved in the development of the illness. Genetic investigations may help to elucidate the pathogenesis of familial ALS.
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Affiliation(s)
- M Maurelli
- Istituto Neurologico C. Mondino, Università di Pavia
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Launo C, Palermo S, Germi MR, Lanfrit C, Frascà A, Simonetti F. [Clonidine and postoperative shivering]. Minerva Anestesiol 1991; 57:427-31. [PMID: 1944967] [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: 12/29/2022]
Abstract
Clonidine was clinically evaluated to suppress postoperative shivering in 60 patients who had undergone anesthesia for general, thoracic and vascular surgery. The study was carried out in double blind conditions with comparison of two doses (75 and 150 micrograms) of clonidine, one dose of methylphenidate, and one dose of saline, as control group. The level of inhibition (Goldfarb scale), haemodynamics and temperature were studied. In conclusion, the methylphenidate is drug first choice for postoperative shivering, but clonidine inhibits postoperative shivering without haemodynamic and temperature variations (75 micrograms).
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Affiliation(s)
- C Launo
- Istituto di Anestesiologia e Rianimazione, Università degli Studi di Genova
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Michelassi PL, Rindi P, Pilone N, Simonetti F. [Investigation on the renal clearance of metylglucamine diatrizoate and of sodium and metylglucamine diatrizoate (author's transl)]. Radiol Med 1979; 65:611-4. [PMID: 554248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In 14 patients the kinetics has been studied of two contrast media labelled with 131I, and namely of MGM diatrizoate and of diatrizoate of sodium and MGM. The clearance was determined both at basal concentrations and in double concentration by means of external counting. The results were statistically studied by means of the linear regression method. The authors conclude that the MGM diatrizoate is exclusively eliminated through the glomeruli both in basal and double concentration. The diatrizoate of sodium and MGM is eliminated in low concentration through the glomeruli, while in double concentration it is partially eliminated through the tubuli.
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Michelassi PL, Simonetti F, Camerini E, Balestri PL. Roentgenographic findings in patients on maintenance dialysis. Panminerva Med 1978; 20:251-3. [PMID: 755972] [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: 12/24/2022]
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