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Ferrario L, Garagiola E, Gerardi C, Bellavia G, Colombo S, Ticca C, Rossetti C, Ciboldi M, Meroni M, Vanzulli A, Rampoldi A, Bignardi T, Arrigoni F, Porazzi E, Foglia E. Innovative and conventional "conservative" technologies for the treatment of uterine fibroids in Italy: a multidimensional assessment. Health Econ Rev 2022; 12:21. [PMID: 35303183 PMCID: PMC8932203 DOI: 10.1186/s13561-022-00367-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] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND To evaluate the potential benefits of the Magnetic Resonance-guided high intensity Focused Ultrasound (MRgFUS) introduction in the clinical practice, for the treatment of uterine fibroids, in comparison with the standard "conservative" procedures, devoted to women who wish to preserve their uterus or enhance fertility: myomectomy and uterine artery embolization (UAE). METHODS A Health Technology Assessment was conducted, assuming the payer's perspective (Italian National Healthcare Service). The nine EUnetHTA Core Model dimensions were deeply investigated, by means of i) a literature review; ii) the implementation of health economics tools (useful for uterine fibroids patients' clinical pathway economic evaluation, and budget impact analysis), to define MRgFUS economic and organizational sustainability, and iii) administration of specific questionnaires filled by uterine fibroids' experts, to gather their perceptions on the three possible conservative approaches (MRgFUS, UAE and myomectomy). RESULTS Literature revealed that MRgFUS would generate several benefits, from a safety and an efficacy profile, with significant improvement in symptoms relief. Advantages emerged concerning the patients' perspective, thus leading to a decrease both in the length of hospital stay (p-value< 0.001), and in patients' productivity loss (p-value = 0.024). From an economic point of view, the Italian NHS would present an economic saving of - 6.42%. A positive organizational and equity impact emerged regarding the capability to treat a larger number of women, thus performing, on average, 131.852 additional DRGs. CONCLUSIONS Results suggest that MRgFUS could be considered an advantageous technological alternative to adopt within the target population affected by uterine fibroids, demonstrating its economic and organisational feasibility and sustainability, with consequent social benefits.
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Affiliation(s)
- L Ferrario
- Centre for Health Economics, Social and Health Care Management, LIUC- Università Cattaneo, Corso Matteotti, 22, 21053, Catellanza, VA, Italy.
| | - E Garagiola
- Centre for Health Economics, Social and Health Care Management, LIUC- Università Cattaneo, Corso Matteotti, 22, 21053, Catellanza, VA, Italy
| | - C Gerardi
- IRCCS- Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy
| | - G Bellavia
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - S Colombo
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - C Ticca
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - C Rossetti
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - M Ciboldi
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - M Meroni
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - A Vanzulli
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - A Rampoldi
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - T Bignardi
- ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | | | - E Porazzi
- Centre for Health Economics, Social and Health Care Management, LIUC- Università Cattaneo, Corso Matteotti, 22, 21053, Catellanza, VA, Italy
| | - E Foglia
- Centre for Health Economics, Social and Health Care Management, LIUC- Università Cattaneo, Corso Matteotti, 22, 21053, Catellanza, VA, Italy
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Vettoretto N, Foglia E, Ferrario L, Gerardi C, Molteni B, Nocco U, Lettieri E, Molfino S, Baiocchi GL, Elmore U, Rosati R, Currò G, Cassinotti E, Boni L, Cirocchi R, Marano A, Petz WL, Arezzo A, Bonino MA, Davini F, Biondi A, Anania G, Agresta F, Silecchia G. Could fluorescence-guided surgery be an efficient and sustainable option? A SICE (Italian Society of Endoscopic Surgery) health technology assessment summary. Surg Endosc 2021; 34:3270-3284. [PMID: 32274626 DOI: 10.1007/s00464-020-07542-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 01/09/2023]
Abstract
BACKGROUND Indocyanine green fluorescence vision is an upcoming technology in surgery. It can be used in three ways: angiographic and biliary tree visualization and lymphatic spreading studies. The present paper shows the most outstanding results from an health technology assessment study design, conducted on fluorescence-guided compared with standard vision surgery. METHODS A health technology assessment approach was implemented to investigate the economic, social, ethical, and organizational implications related to the adoption of the innovative fluorescence-guided view, with a focus on minimally invasive approach. With the support of a multidisciplinary team, qualitative and quantitative data were collected, by means of literature evidence, validated questionnaires and self-reported interviews, considering the dimensions resulting from the EUnetHTA Core Model. RESULTS From a systematic search of literature, we retrieved the following studies: 6 on hepatic, 1 on pancreatic, 4 on biliary, 2 on bariatric, 4 on endocrine, 2 on thoracic, 11 on colorectal, 7 on urology, 11 on gynecology, 2 on gastric surgery. Fluorescence guide has shown advantages on the length of hospitalization particularly in colorectal surgery, with a reduction of the rate of leakages and re-do anastomoses, in spite of a slight increase in operating time, and is confirmed to be a safe, efficacious, and sustainable vision technology. Clinical applications are still presenting a low evidence in the literature. CONCLUSION The present paper, under the patronage of Italian Society of Endoscopic Surgery, based on an HTA approach, sustains the use of fluorescence-guided vision in minimally invasive surgery, in the fields of general, gynecologic, urologic, and thoracic surgery, as an efficient and economically sustainable technology.
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Affiliation(s)
- N Vettoretto
- Chirurgia Montichiari, Azienda Socio Sanitaria Territoriale Degli Spedali Civili, V.le Ciotti 154, Montichiari, 25018, Brescia, Italy.
| | - E Foglia
- LIUC - Università Cattaneo, Castellanza, VA, Italy
| | - L Ferrario
- LIUC - Università Cattaneo, Castellanza, VA, Italy
| | - C Gerardi
- Centro di Politiche Regolatorie, Istituto di Ricerche Farmacologiche "Mario Negri" IRCCS, Milan, Italy
| | - B Molteni
- Department of Clinical and Experimental Surgery, University of Brescia, Brescia, Italy
| | - U Nocco
- Ingegneria Clinica, Azienda Socio Sanitaria Territoriale dei Sette Laghi, Varese, Italy
| | - E Lettieri
- School of Management, Department of Management, Economics and Industrial Engineering, Politecnico, Milano, Italy
| | - S Molfino
- Department of Clinical and Experimental Surgery, University of Brescia, Brescia, Italy
| | - G L Baiocchi
- Department of Clinical and Experimental Surgery, University of Brescia, Brescia, Italy
| | - U Elmore
- Department of Gastrointestinal Surgery, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - R Rosati
- Department of Gastrointestinal Surgery, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - G Currò
- Department of Human Pathology of Adult and Evolutive Age, University Hospital of Messina, Messina, Italy
| | - E Cassinotti
- Chirurgia Generale, Fondazione IRCCS - Ca' Granda - Ospedale Maggiore Policlinico - University of Milan, Milan, Italy
| | - L Boni
- Chirurgia Generale, Fondazione IRCCS - Ca' Granda - Ospedale Maggiore Policlinico - University of Milan, Milan, Italy
| | - R Cirocchi
- Department of Surgical Sciences, University of Perugia, Perugia, Italy
| | - A Marano
- Chirurgia Generale ed Oncologica, Azienda Ospedaliera S. Croce e Carle, Cuneo, Italy
| | - W L Petz
- Chirurgia, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - A Arezzo
- Department of Surgical Sciences, University of Torino, Turin, Italy
| | - M A Bonino
- Department of Surgical Sciences, University of Torino, Turin, Italy
| | - F Davini
- Centro multidisciplinare Chirurgia Robotica, Chirurgia Toracica mini-invasiva e Robotica, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - A Biondi
- Chirurgia Generale, Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy
| | - G Anania
- Chirurgia Generale, University of Ferrara, Ferrara, Italy
| | - F Agresta
- Chirurgia Generale, Azienda ULSS 5 "Polesana", Hospital of Adria, Adria, RO, Italy
| | - G Silecchia
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome-Polo Pontino, Rome, Italy
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Castiglione V, D'Antona A, Dellafiore L, Ferrario L, Luzzatti G, Mortara G, Pizzinelli P, Vitali T, Zonca G. Diagnostic Accuracy of Xeromammography. Tumori 2018; 67:447-53. [PMID: 7324175 DOI: 10.1177/030089168106700510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The analytical study of the case material has allowed a precise evaluation of the distribution by age groups of the different pathologic processes of the breast, of the localization and dimensions of malignant tumors, as well as the diagnostic accuracy for those cases histologically ascertained and those with a follow-up. The diagnostic accuracy and the consequent reliability of the xeroradiographic method for the diagnosis of breast cancer is distinctly superior to that reported in the literature for traditional mammography, whereas for the differential diagnosis between circumscribed dysplastic manifestations and benign tumors xeromammography is not sufficiently reliable. The authors critically discuss the results and in particular the problem of false positives, which also include diagnostic errors that cannot be avoided in that they directly derive from the pathologic morphology of the disease process (plasma cell mastitis and sclerosing adenosis). As regards the problem of false negatives, they can be reduced within certain limits by resorting to other instrumental investigations. However, there are cases (1% of the malignant neoplasias histologically ascertained) that present a completely negative xeroradiographic finding. These are the limits of the radiologic investigation which cannot in any way be surmounted.
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Vennes S, Nemeth P, Kawka A, Thorstensen JR, Khalack V, Ferrario L, Alper EH. An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova. Science 2017; 357:680-683. [PMID: 28818942 DOI: 10.1126/science.aam8378] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 07/18/2017] [Indexed: 11/02/2022]
Abstract
Subluminous Type Ia supernovae, such as the Type Iax-class prototype SN 2002cx, are described by a variety of models such as the failed detonation and partial deflagration of an accreting carbon-oxygen white dwarf star or the explosion of an accreting, hybrid carbon-oxygen-neon core. These models predict that bound remnants survive such events with, according to some simulations, a high kick velocity. We report the discovery of a high proper motion, low-mass white dwarf (LP 40-365) that travels at a velocity greater than the Galactic escape velocity and whose peculiar atmosphere is dominated by intermediate-mass elements. Strong evidence indicates that this partially burnt remnant was ejected following a subluminous Type Ia supernova event. This supports the viability of single-degenerate supernova progenitors.
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Affiliation(s)
- S Vennes
- Astronomický ústav, Akademie věd České republiky, Fričova 298, CZ-251 65 Ondřejov, Czech Republic.
| | - P Nemeth
- Dr. Karl Remeis-Sternwarte, Astronomical Institute, University Erlangen-Nürnberg, Sternwartstr. 7, 96049 Bamberg, Germany.,Astroserver.org, 8533 Malomsok, Hungary
| | - A Kawka
- Astronomický ústav, Akademie věd České republiky, Fričova 298, CZ-251 65 Ondřejov, Czech Republic
| | - J R Thorstensen
- Department of Physics and Astronomy, 6127 Wilder Laboratory, Dartmouth College, Hanover, NH 03755-3528, USA
| | - V Khalack
- Département de physique et d'astronomie, Université de Moncton, Moncton, New Brunswick E1A 3E9, Canada
| | - L Ferrario
- Mathematical Sciences Institute, The Australian National University, Canberra, ACT 0200, Australia
| | - E H Alper
- Department of Physics and Astronomy, 6127 Wilder Laboratory, Dartmouth College, Hanover, NH 03755-3528, USA
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Bisciotti GN, Volpi P, Zini R, Auci A, Aprato A, Belli A, Bellistri G, Benelli P, Bona S, Bonaiuti D, Carimati G, Canata GL, Cassaghi G, Cerulli S, Delle Rose G, Di Benedetto P, Di Marzo F, Di Pietto F, Felicioni L, Ferrario L, Foglia A, Galli M, Gervasi E, Gia L, Giammattei C, Guglielmi A, Marioni A, Moretti B, Niccolai R, Orgiani N, Pantalone A, Parra F, Quaglia A, Respizzi F, Ricciotti L, Pereira Ruiz MT, Russo A, Sebastiani E, Tancredi G, Tosi F, Vuckovic Z. Groin Pain Syndrome Italian Consensus Conference on terminology, clinical evaluation and imaging assessment in groin pain in athlete. BMJ Open Sport Exerc Med 2016; 2:e000142. [PMID: 28890800 PMCID: PMC5566259 DOI: 10.1136/bmjsem-2016-000142] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2016] [Indexed: 12/14/2022] Open
Abstract
The nomenclature and the lack of consensus of clinical evaluation and imaging assessment in groin pain generate significant confusion in this field. The Groin Pain Syndrome Italian Consensus Conference has been organised in order to prepare a consensus document regarding taxonomy, clinical evaluation and imaging assessment for groin pain. A 1-day Consensus Conference was organised on 5 February 2016, in Milan (Italy). 41 Italian experts with different backgrounds participated in the discussion. A consensus document previously drafted was discussed, eventually modified, and finally approved by all members of the Consensus Conference. Unanimous consensus was reached concerning: (1) taxonomy (2) clinical evaluation and (3) imaging assessment. The synthesis of these 3 points is included in this paper. The Groin Pain Syndrome Italian Consensus Conference reached a consensus on three main points concerning the groin pain syndrome assessment, in an attempt to clarify this challenging medical problem.
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Affiliation(s)
- G N Bisciotti
- Qatar Orthopedic and Sport Medicine Hospital, Doha, Qatar
| | - P Volpi
- Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano, Italy.,FC Internazionale, Milan, Italy
| | - R Zini
- Azienda Ospedaliera "Ospedale San Salvatore", Pesaro, Italy
| | - A Auci
- Kinemove Rehabilitation Center, Pontremoli, La Spezia, Italy
| | | | - A Belli
- FC Internazionale, Milan, Italy
| | | | | | - S Bona
- Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano, Italy
| | - D Bonaiuti
- Fisioclinic Centro Medico Polispecialistico, Pesaro, Italy
| | - G Carimati
- Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano, Italy
| | | | - G Cassaghi
- Kinemove Rehabilitation Center, Pontremoli, La Spezia, Italy
| | - S Cerulli
- Institute of Sports Medicine of Turin, Italy
| | - G Delle Rose
- Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano, Italy
| | | | - F Di Marzo
- Azienda Ospedaliera Universitaria di Udine, Italy
| | | | - L Felicioni
- Ospedale della Misericordia, Grosseto, Italy
| | | | - A Foglia
- Studio di fisioterapia Riabilita, Pesaro, Italy
| | - M Galli
- IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | | | - L Gia
- Azienda Ospedaliera Universitaria di Udine, Italy
| | | | - A Guglielmi
- Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - A Marioni
- Azienda Policlinico Università di Bari, Bari, Italy
| | | | | | - N Orgiani
- Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano, Italy
| | | | - F Parra
- Kinemove Rehabilitation Center, Pontremoli, La Spezia, Italy
| | - A Quaglia
- Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano, Italy
| | - F Respizzi
- Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano, Italy
| | - L Ricciotti
- Kinemove Rehabilitation Center, Pontremoli, La Spezia, Italy
| | | | | | | | | | - F Tosi
- Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano, Italy
| | - Z Vuckovic
- Qatar Orthopedic and Sport Medicine Hospital, Doha, Qatar
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Gentile MG, Fellin G, Manna G, Ferrario L, Brunelli R, D'Amico G. Dietetic education and assessment of compliance in patients with chronic renal insufficiency. Contrib Nephrol 2015; 55:36-45. [PMID: 3829682 DOI: 10.1159/000413402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Gentile MG, Manna GM, Ferrario L, D'Amico G. Preliminary experience on dietary management of chronic renal failure. Contrib Nephrol 2015; 53:102-8. [PMID: 3542376 DOI: 10.1159/000413153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Cattano D, Ferrario L, Maddukuri V, Sridhar S, Khalil Y, Hagberg CA. A randomized clinical comparison of the Intersurgical i-gel and LMA Unique in non-obese adults during general surgery. Minerva Anestesiol 2011; 77:292-297. [PMID: 21364502] [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: 05/30/2023]
Abstract
BACKGROUND The i-gel is a cuffless, single-use supralaryngeal airway device designed to provide a more effective seal than the laryngeal mask airway (LMA). Although the superiority of the i-gel compared to the LMA Classic was determined in a previous study, no studies have been performed that compare it to the disposable LMA Unique. The aim of this study was to compare the Intersurgical i-gelTM against the LMA UniqueTM (uLMA) in terms of ease of placement, time of insertion, and adequacy of placement through a randomized, controlled clinical trial. METHODS Following Institutional Review Board (IRB) approval and written informed consent, 50 adult patients were recruited for this study. All enrolled patients were ASA 1-2, Mallampati I-II, and scheduled to receive general anesthesia. Patients were randomized to have either the i-gel or the uLMA placed for airway management. After standardized induction techniques, the airway was secured with the assigned device. All patients were interviewed postoperatively for sore throat, hoarseness, and dysphagia. Standard vital signs, end-tidal CO2, tidal volumes, and peak pressures were recorded. Insertion time, leak pressures, and anatomic placement as assessed fiberoptically for the i-gel were recorded. Ease of placement and complications were also recorded. RESULTS The insertion time was significantly less with the i-gel (21.04±12.6 s vs. 30.04±14.1 s, P=0.02). An inadequate seal was noted in three patients with the i-gel, and it was exchanged for the uLMA in all three cases. There were no significant differences in the ease of insertion, leak pressures, or fiberoptic view. Most of the fiberoptic views, as assessed through the drain tube, demonstrated esophageal mucosa (22/25). Patients receiving the i-gel were significantly more likely to require a second attempt at insertion by the anesthesiologist (OR 8.11, CI 1.1-58.6, P=0.03). Finally, patients receiving the size 5 i-gel were significantly more likely to complain of immediate postoperative symptoms, such as sore throat and dysphagia (OR 29.32, CI 1.4-613.1, P=0.03). CONCLUSION Although the i-gel had a faster insertion time in comparison to the uLMA, there was a greater need for repeat insertions. The weight criteria established by the manufacturer may need to be readjusted to recommend a larger size device in some patients less than 90 kg because all of the repeat insertions were in patients weighing more than 80 kg. In all other aspects of its use, the i-gel performed similarly to the uLMA.
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Affiliation(s)
- D Cattano
- Department of Anesthesiology, University of Texas at Houston Medical School, Houston, TX 77030, USA
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Zendri JP, Bignotto M, Bonaldi M, Cerdonio M, Conti L, Ferrario L, Liguori N, Maraner A, Serra E, Taffarello L. Loss budget of a setup for measuring mechanical dissipations of silicon wafers between 300 and 4 K. Rev Sci Instrum 2008; 79:033901. [PMID: 18377019 DOI: 10.1063/1.2868810] [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: 05/26/2023]
Abstract
A setup for measuring mechanical losses of silicon wafers has been fully characterized from room temperature to 4 K in the frequency range between 300 Hz and 4 kHz: it consists of silicon wafers with nodal suspension and capacitive and optical vibration sensors. Major contributions to mechanical losses are investigated and compared with experimental data scanning the full temperature range; in particular, losses due to the thermoelastic effect and to the wafer clamp are modeled via finite element method analysis; surface losses and gas damping are also estimated. The reproducibility of the measurements of total losses is also discussed and the setup capabilities for measuring additive losses contributed by thin films deposited on the wafers or bonding layers. For instance, assuming that additive losses are due to an 80-nm-thick wafer bond layer with Young modulus about ten times smaller than that of silicon, we achieve a sensitivity to bond losses at the level of 5x10(-3) at 4 K and at about 2 kHz.
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Affiliation(s)
- J P Zendri
- INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, Italy
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Gerli R, Caponi L, Tincani A, Scorza R, Sabbadini MG, Danieli MG, De Angelis V, Cesarotti M, Piccirilli M, Quartesan R, Moretti P, Cantoni C, Franceschini F, Cavazzana I, Origgi L, Vanoli M, Bozzolo E, Ferrario L, Padovani A, Gambini O, Vanzulli L, Croce D, Bombardieri S. Clinical and serological associations of ribosomal P autoantibodies in systemic lupus erythematosus: prospective evaluation in a large cohort of Italian patients. Rheumatology (Oxford) 2002; 41:1357-66. [PMID: 12468814 DOI: 10.1093/rheumatology/41.12.1357] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.0] [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: 11/13/2022] Open
Abstract
OBJECTIVE To verify the association of ribosomal anti-P antibodies (anti-P), as detected by a sensitive ELISA, with serological findings and clinical manifestations, including neuropsychiatric involvement evaluated according to the American College of Rheumatology (ACR) nomenclature, in a large cohort of patients with systemic lupus erythematosus (SLE). METHODS Anti-P were evaluated in the serum of 149 consecutive Italian SLE patients by an ELISA using a multiple antigen peptide carrying four copies of a common P0, P1 and P2 epitope. A complete laboratory evaluation and clinical examination were performed in each patient. In addition, all patients underwent an accurate neuropsychiatric and neuropsychological assessment performed by trained specialists according to the 1999 ACR suggestions. RESULTS Serum anti-P were detected in 18/149 patients (12.1%). The anti-P prevalence was similar (11.7%) when the analysis was performed in a larger series of sera including 82 additional SLE patients, who were not included in the clinical study. The age of anti-P-positive patients at disease onset was less than 33 yr and, in comparison with the anti-P-negative patients, these patients showed more active disease activity and a higher prevalence of photosensitivity and malar and discoid rash. A strong association between IgG anticardiolipin antibodies and anti-P was also found. However, anti-P were associated with neither neuropsychiatric syndromes nor cognitive impairment. CONCLUSION This study does not seem to confirm the described association of anti-P with SLE neuropsychiatric manifestations. However, it supports the anti-P association with different skin manifestations as well as the presence of anticardiolipin in a subset of patients with SLE characterized by early disease onset.
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Affiliation(s)
- R Gerli
- Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Perugia, Italy
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Abstract
The existence of a compensatory mechanism in response to cell wall damage has been proposed in yeast cells. The increase of chitin accumulation is part of this response. In order to study the mechanism of the stress-related chitin synthesis, we tested chitin synthase I (CSI), CSII, and CSIII in vitro activities in the cell-wall-defective mutant gas1 delta. CSI activity increased twofold with respect to the control, a finding in agreement with an increase in the expression of the CHS1 gene. However, deletion of the CHS1 gene did not affect the phenotype of the gas1 delta mutant and only slightly reduced the chitin content. Interestingly, in chs1 gas1 double mutants the lysed-bud phenotype, typical of chs1 null mutant, was suppressed, although in gas1 cells there was no reduction in chitinase activity. CHS3 expression was not affected in the gas1 mutant. Deletion of the CHS3 gene severely compromised the phenotype of gas1 cells, despite the fact that CSIII activity, assayed in membrane fractions, did not change. Furthermore, in chs3 gas1 cells the chitin level was about 10% that of gas1 cells. Thus, CSIII is the enzyme responsible for the hyperaccumulation of chitin in response to cell wall stress. However, the level of enzyme or the in vitro CSIII activity does not change. This result suggests that an interaction with a regulatory molecule or a posttranslational modification, which is not preserved during membrane fractionation, could be essential in vivo for the stress-induced synthesis of chitin.
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Affiliation(s)
- M H Valdivieso
- Departamento de Microbiologia y Genética/Instituto de Microbiologia Bioquimica, Universidad de Salamanca/CSIC, Campus Miguel de Unamuno, 37007 Salamanca, Spain
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Turchini A, Ferrario L, Popolo L. Increase of external osmolarity reduces morphogenetic defects and accumulation of chitin in a gas1 mutant of Saccharomyces cerevisiae. J Bacteriol 2000; 182:1167-71. [PMID: 10648547 PMCID: PMC94397 DOI: 10.1128/jb.182.4.1167-1171.2000] [Citation(s) in RCA: 18] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We have performed a physiological analysis of the effects of high-osmolarity media on gas1Delta cells. The reductions in the duplication time, number of pluribudded cells, hypersensitivity to Calcofluor and sodium dodecyl sulfate, and chitin level indicate a partial suppression of the mutant phenotype. GAS1 deletion was found to be lethal in the absence of the Bck1 and Slt2 (Mpk1) proteins of the cell integrity pathway.
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Affiliation(s)
- A Turchini
- Dipartimento di Fisiologia e Biochimica Generali, Universitá degli Studi di Milano, 20133 Milan, Italy
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13
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Ferrario L, Bellone M, Bozzolo E, Baldissera E, Sabbadini MG. Remission from lupus nephritis resistant to cyclophosphamide after additional treatment with cyclosporin A. Rheumatology (Oxford) 2000; 39:218-220. [PMID: 10725082 DOI: 10.1093/rheumatology/39.2.218a] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sabbadini MG, Manfredi AA, Bozzolo E, Ferrario L, Rugarli C, Scorza R, Origgi L, Vanoli M, Gambini O, Vanzulli L, Croce D, Campana A, Messa C, Fazio F, Tincani A, Anzola G, Cattaneo R, Padovani A, Gasparotti R, Gerli R, Quartesan R, Piccirilli M, Farsi A, Emmi E, Passaleva A. Central nervous system involvement in systemic lupus erythematosus patients without overt neuropsychiatric manifestations. Lupus 1999; 8:11-9. [PMID: 10025594 DOI: 10.1191/096120399678847344] [Citation(s) in RCA: 77] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To verify whether features of CNS involvement can be detected in SLE patients without overt neuropsychiatric manifestations. METHODS 114 SLE patients who had never received a diagnosis of neuropsychiatric lupus (never-NPSLE) were studied and compared to 65 SLE patients with known neuropsychiatric involvement (NPSLE). The study relied on evaluation of neurocognitive functions by means of a battery of neuropsychological tests, on psychiatric and neuropsychological assessments and on neuroimaging studies (computed tomography, magnetic resonance, single photon emission computed tomography (SPECT)). RESULTS Clinical features, including disease duration/activity and pharmacological therapy, of never-NPSLE and NPSLE patients were similar. Short-term and long-term memory, visuo-spatial and verbal information processing were similarly compromised in never-NPSLE and in NPSLE patients; only attention was significantly more compromised in NPSLE patients. Psychiatric morbidity was higher than expected in never-NPSLE patients, although less than in the control neuropsychiatric group. Ischemic lesions, multiple small high intensity lesions and cortical atrophy, detected by CT and MR scans, as well as abnormal SPECT were also frequently detected in never-NPSLE patients. Interestingly, left parietal and occipital area hypoperfusion by SPECT was significantly more frequent in the patients with impaired visuo-spatial intelligence and short-term memory. CONCLUSIONS Most abnormalities detected by available diagnostic tools and characteristics of neuropsychiatric SLE are also present in non-symptomatic patients. They may derive from an unexpected widespread involvement of the CNS and are not per se sufficient, in the absence of clinical manifestations, for a diagnosis of neuropsychiatric SLE.
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Affiliation(s)
- L Fratino
- Divisione di Oncologia Medica, Centro di Riferimento Oncologico IRCCS, Aviano, Italy
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Abstract
The geriatric population is expanding and clinical decision-making is often complicated by the effects of ageing. Age should not be the only parameter considered when addressing medical problems. Elderly subjects have been denied surgery because of their presumed higher mortality and morbidity. The present review summarises the physiology of the aged and discusses operative risks, mortality and morbidity rates as well as therapeutic results for the different gastrointestinal sites when affected by cancer. Reports on surgical treatments are revisited and compared to the same procedures delivered to younger patients in the context of the ethical issue of offering the best care to every patient. Elective operations by surgical oncologists are found to be safe with the exception of major liver resections. Complication rates and mean hospital stay do not differ between the two age groups provided the procedure is conducted with the best-known technique in expert hands. A drop in operative morbidity has occurred in the past three decades. Several investigators have emphasised the marked increase in morbidity and mortality experienced by elderly patients when undergoing emergency procedures. Associated diseases have to be properly assessed, as the elderly have a frail physiological balance with a reduced capacity for recovery from traumatic events including major surgical procedures. Careful preoperative evaluation, intraoperative conduct and postoperative care are presently achieved in almost every major hospital. Good clinical practice is based on the balance between probability of cure and toxic effects. Treatment of the elderly should no longer be based on untested beliefs and personal opinions. The elderly should be accrued for prospective clinical evaluation and should not be denied optimal surgical treatment.
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Affiliation(s)
- R A Audisio
- EIO-European Institute of Oncology, Milan, Italy
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Hakim TS, Ferrario L, Freedman JC, Carlin RE, Camporesi EM. Segmental pulmonary vascular responses to ATP in rat lungs: role of nitric oxide. J Appl Physiol (1985) 1997; 82:852-8. [PMID: 9074974 DOI: 10.1152/jappl.1997.82.3.852] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [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: 02/04/2023] Open
Abstract
ATP exhibits vascular pressor and depressor responses in a dose- and tone-dependent manner. The vascular site of ATP-induced contraction or dilation has not previously been characterized. Using the vascular occlusion technique, we investigated the effects of ATP in isolated rat lungs perfused with autologous blood (hematocrit = 20%) and described its action during resting and elevated tone in terms of changes in resistances of the small and large arteries and veins. During resting tone, ATP (10(-5) M) caused contraction primarily in the small arteries and, to some extent, in the small veins, suggesting that P2x purinoceptors are present in these small vessels. During hypoxia, ATP caused dilation primarily in the small arteries, suggesting that P2y purinoceptors are predominant in small arteries. During U-46619-induced contraction, which occurred evenly throughout the four segments, ATP caused dilation in the large arteries and veins but not in the small arteries and veins. After treatment with N omega-nitro-L-arginine to inhibit nitric oxide synthesis, ATP-induced contraction was potentiated, and its dilatory effects during hypoxia were attenuated. The action of ATP was independent of prostanoids, because its constrictor and dilatory responses were not affected significantly by indomethacin. In conclusion, the results indicate that the effects of ATP on the pulmonary vasculature are primarily due to P2x and P2y purinoceptors in the small arteries. Contribution of these purinoceptors in other vessels to changes in total vascular resistance in rat lung was minor.
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Affiliation(s)
- T S Hakim
- Department of Surgery, State University of New York Health Science Center, Syracuse 13210, USA.
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Carlin RE, Ferrario L, Boyd JT, Camporesi EM, McGraw DJ, Hakim TS. Determinants of nitric oxide in exhaled gas in the isolated rabbit lung. Am J Respir Crit Care Med 1997; 155:922-7. [PMID: 9117027 DOI: 10.1164/ajrccm.155.3.9117027] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Nitric oxide concentrations in the exhaled gas (NOe) increases during various inflammatory conditions in humans and animals. Little is known about the sources and factors that influence NOe. NOe at end expiration was measured by chemiluminescence in an isolated, blood-perfused rabbit lung. The average end-expiratory concentration over 10 breaths was used. The effect of positive end-expiratory pressure (PEEP), flow rate, pH, hypoxia, venous pressure, and flow pulsatility on NOe were determined. At constant blood flow, increasing PEEP from 1 to 5 cm H2O elicited a reproducible increase in NOe from 49 +/- 7 to 53 +/- 8 parts per billion (ppb) (p < 0.05). When blood pH was increased from 7.40 to 7.74 by breathing low CO2 gas, NOe rose from 45 +/- 7 to 55 +/- 7 ppb (p < 0.001). Hypoxia caused a dose-dependent decrease in NOe from 37 +/- 3 during baseline to 23 +/- 2 during ventilation with 0% O2 (p < 0.01). Venous pressure elevation from 0 to 5 and 10 mm Hg decreased NOe from 32 +/- 5, to 26 +/- 5 and 24 +/- 5 ppb, respectively (p < 0.05). Switching from steady to pulsatile flow (same man flow) resulted in a small, albeit significant reduction in NOe; 30 +/- 4 to 28 +/- 4 ppb (p < 0.05). Changes in flow rate between 200 and 20 ml/min were associated with small changes in NOe; however, when flow was stopped, NOe rose substantially to 56 +/- 6 ppb (p < 0.05). The changes in NOe were rapid (1 to 2 min) and reversible. The results suggest that NOe is influenced by ventilatory and hemodynamic variables, pH, and hypoxia. We suggest that caution must be taken when interpreting changes in exhaled NO in humans or experimental animals. Changes in total and regional blood flow, capillary blood volume, ventilation, hypoxia, and pH should not be overlooked.
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Affiliation(s)
- R E Carlin
- State University of New York Health Science Center at Syracuse, Department of Surgery, 13210, USA
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Abstract
The arterial, double and venous occlusions are used to partition pulmonary vascular resistance into four segments. In this study, we tested whether the same can be accomplished from one double occlusion. In an isolated canine lung left lower lobe perfused with blood (flow rate = 500 mL.min-1), the pulmonary arterial and venous pressures (Pa and Pv, respectively) were measured directly. Arterial, double, and venous occlusions were performed and analysed as usual (Method 1) to measure pressures in small arteries and small veins (Pa' and Pv', respectively) and capillary pressure (Pc). Alternatively, one double occlusion was analysed (Method 2), not only for Pa, Pv and Pc, but also as independent arterial and venous occlusions to measure Pa' and Pv'. Method 1 yielded Pa, Pa', Pc, Pv', and Pv (Baseline) of 14.2 +/- 1.7, 10.8 +/- 1.6, 8.9 +/- 1.9, 7.3 +/- 1.5 and 1.3 +/- 0.6 mmHg, respectively (1 mmHg = 0.133 kPa). Method 2 yielded values for the same five pressures equal to 14.7 +/- 2.1, 11.0 +/- 2.2, 8.9 +/- 1.9, 7.3 +/- 1.3 and 1.3 +/- 0.6 mmHg, respectively. There was no significant difference in the pressure profile obtained using the two methods, nor were there differences during hypoxia and angiotensin infusion. These results suggest that a more thorough analysis of the double occlusion can provide the same information about distribution of vascular resistance as provided by a combination of the three occlusions. The advantage of the new approach is that fewer occlusions are needed and resistance distribution can be assessed during a transient response. Because all pressures are derived from one occlusion, the pressures would be more accurate relative to each other.
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Affiliation(s)
- T S Hakim
- Dept of Surgery, Health Science Center, Syracuse, New York, USA
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Pelosi P, Solca M, Ravagnan I, Tubiolo D, Ferrario L, Gattinoni L. Effects of heat and moisture exchangers on minute ventilation, ventilatory drive, and work of breathing during pressure-support ventilation in acute respiratory failure. Crit Care Med 1996; 24:1184-8. [PMID: 8674333 DOI: 10.1097/00003246-199607000-00020] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.3] [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: 02/01/2023]
Abstract
OBJECTIVES To evaluate the effect of two commonly used heat and moisture exchangers on respiratory function and gas exchange in patients with acute respiratory failure during pressure-support ventilation. DESIGN Prospective, randomized trial. SETTING Intensive care unit of a university hospital. PATIENTS Fourteen patients with moderate acute respiratory failure, receiving pressure-support ventilation. INTERVENTIONS Patients were assigned randomly to two treatment groups, in which two different heat and moisture exchangers were used: Hygroster (DAR S.p.A., Mirandola, Italy) with higher deadspace and lower resistance (group 1, n = 7), and Hygrobac-S (DAR S.p.A.) with lower deadspace and higher resistance (group 2, n = 7). Patients were assessed at three pressure-support levels: a) baseline (10.3 +/- 2.4 cm H2O for group 1, 9.3 +/- 1.3 cm H2O for group 2); b) 5 cm H2O above baseline; and c) 5 cm H2O below baseline. Measurements obtained with the heat and moisture exchangers were compared with those values obtained using the standard heated hot water humidifier. MEASUREMENTS AND MAIN RESULTS At baseline pressure-support ventilation, the insertion of both heat and moisture exchangers induced in all patients a significant increase in the following parameters: minute ventilation (12.4 +/- 3.2 to 15.0 +/- 2.6 L/min for group 1, and 11.8 +/- 3.6 to 14.2 +/- 3.5 L/min for group 2); static intrinsic positive end-expiratory pressure (2.9 +/- 2.0 to 5.1 +/- 3.2 cm H2O for group 1, and 2.9 +/- 1.7 to 5.5 +/- 3.0 cm H2O for group 2); ventilatory drive, expressed as P41 (2.7 +/- 2.0 to 5.2 +/- 4.0 cm H2O for group 1, and 3.3 +/- 2.0 to 5.3 +/- 3.0 cm H2O for group 2); and work of breathing, expressed as either power (8.8 +/- 9.4 to 14.5 +/- 10.3 joule/ min for group 1, and 10.5 +/- 7.4 to 16.6 +/- 11.0 joule/min for group 2) or work per liter of ventilation (0.6 +/- 0.6 to 1.0 +/- 0.7 joule/L for group 1, and 0.8 +/- 0.4 to 1.1 +/- 0.5 joule/L. for group 2). These increases also occurred when pressure-support ventilation was both above and below the baseline level, although at high pressure support the increase in work of breathing with heat and moisture exchangers was less evident. Gas exchange was unaffected by heat and moisture exchangers, as minute ventilation increased to compensate for the higher deadspace produced in the circuit by the insertion of heat and moisture exchangers. CONCLUSIONS The tested heat and moisture exchangers should be used carefully in patients with acute respiratory failure during pressure-support ventilation, since these devices substantially increase minute ventilation, ventilatory drive, and work of breathing. However, an increase in pressure-support ventilation (5 to 10 cm H2O) may compensate for the increased work of breathing.
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Affiliation(s)
- P Pelosi
- Istituto di Anestesia e Rianimazione, Universita' degll Studi di Milano, IRCCS Ospedale Maggiore, Italy
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Abstract
The effect of endogenous nitric oxide (NO) on the pulmonary hypoxic vasoconstriction was studied in isolated and blood perfused rat lungs. By applying the occlusion technique we partitioned the total pulmonary vascular resistance (PVR) into four segments: (1) large arteries (Ra), (2) small arteries (Ra'), (3) small veins (Rv'), and (4) large veins (Rv). The resistances were evaluated under baseline (BL) conditions and during; hypoxic vasoconstriction and acetylcholine (Ach) which was injected during hypoxic vasoconstriction. After recovery from hypoxia and Ach, Nomega-nitro-L-arginine (L-NA) was added to the reservoir and the responses to hypoxia and Ach were reevaluated. Before L-NA, hypoxia caused significant increase in the resistances of all segments (P < 0.05), with the largest being in Ra and Ra'. Ach-induced relaxation during hypoxia occurred in Ra, Ra' and Rv' (P < 0.05). L-NA did not change the basal tone of the pulmonary vasculature significantly. However, after L-NA, hypoxic vasoconstriction was markedly enhanced in Ra, Ra', and Rv' (P < 0.01) compared with the hypoxic response before L-NA. Ach-induced relaxation was abolished after L-NA. We conclude that, in rat lungs, inhibition of NO production during hypoxia enhances the response in the small arteries and veins as well as in the large arteries. The results suggest that hypoxic vasoconstriction in the large pulmonary arteries and small vessels is attenuated by NO release.
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Affiliation(s)
- L Ferrario
- Department of Anesthesiology, SUNY-Health Science Center at Syracuse, 750 East Adams St., Syracuse NY 13210 USA
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Biffi R, Privitera G, Andreoni B, Matinato C, Pozzi S, Marzona L, De Rai P, Trivella M, Ferrario L, Montagnolo G. Bacterial translocation in pigs given cyclosporine or 15-deoxyspergualin after small bowel allografts--comparison with autotransplanted animals. Transplant Proc 1994; 26:1686-7. [PMID: 8030088] [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: 01/28/2023]
Affiliation(s)
- R Biffi
- Istituto di Chirurgia d'Urgenza, University of Milan, Ospedale Maggiore Policlinico, Italia
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Cairoli F, Ferrario L, Carli S, Soldano F. Efficacy of oxytetracycline and tetracycline-benzydamine in the prevention of infection after placental retention in cattle. Vet Rec 1993; 133:394-5. [PMID: 8310607 DOI: 10.1136/vr.133.16.394] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The efficacy of intrauterine oxytetracycline and a combination of benzydamine and tetracycline in preventing uterine infections in 150 Italian Friesian cows with retained placentas were compared. The animals were divided into three equal groups. Sixteen per cent of the oxytetracycline-treated group, 12 per cent of the benzydamine-tetracycline-treated group and 76 per cent of the untreated group developed endometritis. The difference between the two treatment groups was not significant but both treatments were effective in preventing septic complications in cows with retained placentas.
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Affiliation(s)
- F Cairoli
- Cattedra di Fisiopatologie della Riproduzione, Facoltà di Agraria, Udine, Italy
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Conte D, Velio P, Brunelli L, Mandelli C, Cesana M, Ferrario L, Quatrini M, Bianchi PA. Stainable iron in gastric and duodenal mucosa of primary hemochromatosis patients and alcoholics. Am J Gastroenterol 1987; 82:237-40. [PMID: 3826030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The presence of iron in gastric and duodenal mucosa was investigated with Perl's stain in endoscopic biopsies from 13 patients with overt primary hemochromatosis, 10 chronic heavy alcohol abusers, and 10 patients with nonulcer dyspepsia. In the primary hemochromatosis patients marked iron deposition was found in cells at the base of glands in the gastric body and antrum in nine cases, and in crypt cells and Brunner gland cells of the duodenum in six. Iron was detected in the lamina propria of the stomach in five and duodenum in four cases. A similar distribution of iron overload, usually of lesser degree, was also observed in five alcoholics. Serum ferritin levels and the degree of gastric and/or duodenal iron deposits did not correlate in either hemochromatosis patients or alcoholics. No gastric or duodenal siderosis was observed in nonulcer dyspepsia cases. The absence of gastric and duodenal stainable iron in some hemochromatosis patients and its presence in some alcoholics suggests that the diagnostic value of upper gastrointestinal biopsy in primary hemochromatosis is limited.
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Conte D, Piperno A, Mandelli C, Fargion S, Cesana M, Brunelli L, Ferrario L, Velio P, Zaramella MG, Tiribelli C. Clinical, biochemical and histological features of primary haemochromatosis: a report of 67 cases. Liver 1986; 6:310-5. [PMID: 3023781 DOI: 10.1111/j.1600-0676.1986.tb00297.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In 67 patients (mean age 51 years, range 26-79), at diagnosis of primary haemochromatosis (PH), grade III or IV liver iron overload was present in all cases, cirrhosis in 85%, transferrin saturation greater than 80% in 75%, serum ferritin greater than 1000 micrograms/l in 84%, and overt diabetes in 48%. Alcohol intake was greater than 150 g/day in 11 patients; six were chronic hepatitis B surface antigen (HBsAg) carriers. HLA-A3 and B7 antigens were present in 64% and 23% versus respectively 22% (p less than 0.01) and 9% (p less than 0.025) in controls. Iron overload was found in the stomach, duodenum, skin and bone marrow in 57, 43, 45 and 59% of the patients studied. Sixty-three patients were followed for 1-260 months (median 24); 43 received regular iron-depleting treatment and 20 did not because of liver failure, cancer or refusal. Cumulative survival was 79%, 67% and 61% at 1, 4 and 10 years, respectively. Ten patients died from hepatocellular carcinoma and two from extrahepatic cancer. The early high mortality rate was due to some cases of advanced disease or cancer. Cumulative survival in the regularly treated group was 95% at 1 year and 91% at 4 and 10 years, which was higher than in the untreated group.
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Conte D, Brunelli L, Ferrario L, Mandelli C, Quatrini M, Velio P, Bianchi PA. Effect of ascorbic acid on desferrioxamine-induced urinary iron excretion in idiopathic hemochromatosis. Acta Haematol 1984; 72:117-20. [PMID: 6437113 DOI: 10.1159/000206370] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The effect on urinary iron excretion (UIE) of vitamin C administered orally 2 h after the start of an 8-hour desferrioxamine (DF) i.v. infusion was studied in 12 patients with untreated idiopathic hemochromatosis (IH). Mean +/- SEM basal UIE of 324.6 +/- 84.6 micrograms/24 h increased after a 1-gram i.v. DF infusion to 8,778.5 +/- 1,191.4 micrograms/24 h; when vitamin C 1 or 2 g were added to DF i.v. infusion, there were further increases to 11,241.5 +/- 1,486.1 (p less than 0.01) and 13,531.2 +/- 1,697.2 micrograms/24 h (p less than 0.05 versus the last value), respectively. Basal UIE did not significantly increase after oral vitamin C administration alone. No side effects were observed.
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Fiacchino F, Giorgi C, Ferrazza C, Montolivo M, Bricchi M, Ferrario L, Pluchino F, Borroni V. Increased activation effects of succinylcholine in neurological patients. Ital J Neurol Sci 1983; 4:27-33. [PMID: 6862844 DOI: 10.1007/bf02043434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Succinylcholine, a depolarizing muscle relaxant with both activating and desensitizing effects, is used to facilitate endotracheal intubation. The activating effects were found to be above-normal on induction of anesthesia in 7 neurological patients: generalized muscle spasm in 1 myotonic patient, contractures or prolonged contractions in "anatomically" denervated muscles (1 patient), in "functionally" denervated muscles (1 patient) and in "centrally" denervated muscles (4 patients). One of these four presented hyperkalemia and cardiocirculatory collapse. It is important to differentiate these anomalous responses to succinylcholine from those occurring as early signs of rhabdomyolysis or malignant hyperthermia.
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Borroni V, Pluchino F, Ferrario L, Lodrini S, Franceschetti S, Cefalà A, Avanzini G. [Controlled hypotension in the surgery of aneurysms in the circle of Willis. Use of sodium nitroprusside and the value of EEG monitoring]. Minerva Anestesiol 1982; 48:613-8. [PMID: 7145109] [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: 01/23/2023]
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Castiglione V, D'Antona A, Dellafiore L, Ferrario L, Luzzatti G, Mortara G, Pizzinelli P, Vitali T, Zonca GC. [The value of xeroradiographic patterns in the diagnosis of breast diseases (author's transl)]. Radiol Med 1982; 68:449-54. [PMID: 7111793] [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: 01/23/2023]
Abstract
The purpose of this study was to establish the value of xeroradiographic patterns and their applicability in the automatic diagnosis of breast diseases. Such an evaluation is based on the comparison with the histologic examination, irrespective of the overall diagnostic judgement previously formulated. From an analysis of the material examined it was possible to ascertain the distribution frequency, the sensitivity, the specificity, the discriminating capacity, and finally the weight of each radiologic sign considered. There are xeroradiographic signs that are apparent almost exclusively in the malignant pathology and therefore can be considered as positive indices of the malignancy of the alteration. The specificity of the radiologic signs considered is very high, whereas the same cannot be said for the sensitivity. Moreover, a linear discriminating analysis made it possible to identify those semiologic elements which, with a minor probability of error, would attribute the pathologic process to the class verified histologically, for malignant neoplasms as well as benign tumors and dysplastic processes.
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Tansella M, Zimmermann Tansella C, Ferrario L, Preziati L, Tognoni G, Lader M. Plasma concentrations of diazepam, noradiazepam and amylobarbitone after short-term treatment of anxious patients. Pharmakopsychiatr Neuropsychopharmakol 1978; 11:68-75. [PMID: 347466 DOI: 10.1055/s-0028-1094564] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Twenty-four anxious inpatients were treated with diazepam, amylobarbitone and placebo, each given in flexible dosage for one week, according to a fully-balanced design. Plasma concentrations of diazepam and of its metabolite nordiazepam and of amylobarbitone were determined after two, four and seven days of treatment. Clinical and psychological assessments were made after seven days of each treatment by means of psychiatrist rating scales, patient's self-rating and a comprehensive battery of performance measures. Diazepam and nordiazepam but not amylobarbitone were accumulating over the seven days of treatment. In patients on diazepam without previous amylobarbitone, nordiazepam accumulated more rapidly than diazepam over the week so that the ratio of diazepam to nordiazepam was 2.21 after two days but only 1.14 after seven days; those with previous amylobarbitone on the other hand always had nordiazepam concentrations higher than those of the administered drug and both were accumulating equally. Diazepam and nordiazepam were still detectable in most patients two weeks after the interruption of treatment. No correlations were found between drug concentrations and clinical and psychological effects.
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Fuccella LM, Bolcioni G, Tamassia V, Ferrario L, Tognoni G. Human pharmacokinetics and bioavailability of temazepam administered in soft gelatin capsules. Eur J Clin Pharmacol 1977; 12:383-6. [PMID: 598411 DOI: 10.1007/bf00562455] [Citation(s) in RCA: 81] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Plasma levels of temazepam were determined in healthy subjects after single oral administration of soft and hard gelatin capsules, and after 7 consecutive night-time doses in soft capsules. Absorption from soft gelatin capsules was significantly faster and produced earlier and higher peak plasma levels. The two pharmaceutical forms did not show any significant difference in relative availability. The apparent half-life of temazepam after night-time administration was significantly shorter than after morning administration, but no change in half-life was observed between the first and seventh night-time doses.
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