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34 results on '"Petrakis, J."'

3. The MACRO detector at Gran Sasso

Author

Ambrosio, M., Antolini, R., Assiro, R., Auriemma, G., Bakari, D., Baldini, A., Barbarino, G.C., Barbarito, E., Barish, B.C., Battistoni, G., Becherini, Y., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bisi, V., Bloise, C., Bottazzi, E., Bower, C., Brigida, M., Bussino, S., Cafagna, F., Calicchio, M., Campana, D., Candela, A., Carboni, M., Cecchini, S., Cei, F., Ceres, A., Chiarella, V., Choudhary, B.C., Coutu, S., Cozzi, M., Creti, P., De Cataldo, G., Esposti, L.Degli, Dekhissi, H., Marzo, C.De, Mitri, I.De, Derkaoui, J., Vincenzi, M.De, Credico, A.Di, Ferdinando, D.Di, Diotallevi, R., Erriquez, O., Favuzzi, C., Forti, C., Fusco, P., Gebhard, M., Giacomelli, G., Giacomelli, R., Giannini, G., Giglietto, N., Giorgini, M., Giuliani, R., Goretti, M., Grassi, M., Grau, H., Gray, L., Grillo, A., Guarino, F., Gustavino, C., Habig, A., Hanson, J., Hanson, K., Hawthorne, A., Heinz, R., Hong, J.T., Iarocci, E., Katsavounidis, E., Katsavounidis, I., Kearns, E., Kim, H., Kyriazopoulou, S., Lamanna, E., Lane, C., Leone, A., Levin, D.S., Lipari, P., Liu, G., Liu, R., Longley, N.P., Longo, M.J., Loparco, F., Maaroufi, F., Mancarella, G., Mandrioli, G., Manzoor, S., Marrelli, V., Margiotta, A., Marini, A., Martello, D., Marzari-Chiesa, A., Mazziotta, M.N., Michael, D.G., Mikheyev, S., Miller, L., Monacelli, P., Mongelli, M., Montaruli, T., Monteno, M., Mossbarger, L., Mufson, S., Musser, J., Nicolò, D., Nolty, R., Okada, C., Orsini, M., Orth, C., Osteria, G., Ouchrif, M., Palamara, O., Parlati, S., Patera, V., Patrizii, L., Pazzi, R., Peck, C.W., Pellizzoni, G., Perchiazzi, M., Perrone, L., Petrakis, J., Petrera, S., Pignatano, N., Pinto, C., Pistilli, P., Popa, V., Rainò, A., Reynoldson, J., Ronga, F., Rrhioua, A., Sacchetti, A., Saggese, P., Satriano, C., Satta, L., Scapparone, E., Scholberg, K., Sciubba, A., Serra, P., Sioli, M., Sirri, G., Sitta, M., Sondergaard, S., Spinelli, P., Spinetti, M., Spurio, M., Stalio, S., Steinberg, R., Stone, J.L., Sulak, L.R., Surdo, A., Tarlè, G., Togo, V., Vakili, M., Valieri, C., Walter, C.W., Webb, R., and Zaccheo, N.

Published
2002
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6. Nitinol stents for palliative treatment of malignant obstructive jaundice: should we stent the sphincter of Oddi in every case?

Author

Hatzidakis, Adam A., Tsetis, Dimitris, Chrysou, Evangelia, Sanidas, Elias, Petrakis, John, Gourtsoyiannis, Nicholas C., Hatzidakis, A A, Tsetis, D, Chrysou, E, Sanidas, E, Petrakis, J, and Gourtsoyiannis, N C

Abstract

Purpose: To evaluate the necessity of metallic stenting of the sphincter of Oddi in malignant obstructive jaundice when the tumor is more than 2 cm from the papilla of Vater.Methods: Sixty-seven self-expandable biliary stents were used in 60 patients with extrahepatic lesions of the common hepatic or common bile duct and with the distal margin of the tumor located more than 2 cm from the papilla of Vater. Stents were placed above the papilla in 30 cases (group A) and in another 30 with their distal part protruding into the duodenum (group B).Results: The 30-day mortality was 15%, due to the underlying disease. The stent occlusion rate was 17% after a mean period of 4.3 months. No major complications were noted. Average survival was 132 days for group A and 140 days for group B. In group A, 19 patients survived < or = 90 days and in eight of these, cholangitis occurred at least once. Of 11 patients in group A with survival > 90 days, only two developed cholangitis. In group B, 13 patients who survived < or = 90 days had no episodes of cholangitis and in 17 with survival > 90 days, cholangitis occurred in three. There is a statistically significant difference (p < 0.05) regarding the incidence of cholangitis in favor of group A.Conclusions: In patients with extrahepatic lesions more than 2 cm from the papilla and with a relative poor prognosis (< or = 3 months), due to more advanced disease or to a worse general condition, the sphincter of Oddi should also be stented in order to reduce the postprocedural morbidity. [ABSTRACT FROM AUTHOR]

Published
2001
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8. Improvements in the CR39 polymer for the macro experiment at the Gran Sasso Laboratory

Author

Ahlen, S.P., Ambrosio, M., Auriemma, G., Babarino, C.G., Baldini, A., Barish, B., Battistoni, G., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bisi, V., Bloise, C., Bower, C., Bussino, S., Cafagna, F., Calicchio, M., Campana, P., Castelvetri, A., Cecchini, S., Cei, F., Chiarella, V., Chrysicopoulou, P., Cormack, R., Coutu, S., De Cataldo, G., De Marzo, C., De Vincenzi, E.M., Diehl, E., Erriquez, E., Favuzzi, C., Ficenec, D., Forti, C., Giacomelli, G., Giannini, G., Giglietto, N., Giubellino, P., Grassi, M., Green, P., Grillo, A., Guarino, F., Gustavino, C., Hazen, E., Heinz, R., Hong, J.T., Iarocci, E., Klein, S., Lamanna, E., Lane, C., Levin, D., Lipari, P., Liu, G., Longo, M., Mancarella, G., Mandrioli, G., Margiotta-Neri, A., Marin, A., Marini, A., Martellotti, G., MarzariChiesa, A., Masera, M., Matteuzzi, P., Miller, L., Monacelli, P., Monteno, M., Mulfson, S., Musser, J., Nappi, E., Osteria, G., Pal, B., Palamara, O., Pasquale, M., Patera, V., Patrizii, L., Pazzi, R., Peck, J., Petrakis, J., Petrera, S., Pignatano, N., Pistilli, P., Predieri, F., Ramello, L., Reale, A., Reynoldson, J., Ronga, F., Rosa, G., Sanzani, G.L., Satriano, C., Satta, L., Scapparone, E., Sciubba, A., Serra Lugaresi, P., Severi, M., Sini, G.P., Smith, C., Solie, D., Spinelli, P., Spinetti, M., Spurio, M., Steele, J., Steinberg, R., Stone, J.L., Sulak, L.R., Surdo, A., Tarle, G., Togo, V., Valente, V., Webb, R., and Worstell, W.

Published
1991
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9. Search for neutrino bursts from collapsing stars with the MACRO detector

Author

Ahlen, S., Ambrosio, M., Antolini, R., Auriemma, G., Baker, R., Baldini, A., Barbarino, G.C., Barish, B.C., Battistoni, G., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bisi, V., Bloise, C., Bower, C., Bussino, S., Cafagna, F., Calicchio, M., Campana, P., Campana, D., Carboni, M., Cecchini, S., Cei, F., Chiarella, V., Chiera, C., Cobis, A., Cormack, R., Corona, A., Coutu, S., DeCataldo, G., DeMarzo, C., De Vincenzi, M., Di Credico, A., Diehl, E., Dekhissi, H., Erriquez, O., Favuzzi, C., Ficenec, D., Forti, C., Foti, L., Fusco, P., Giacomelli, G., Giannini, G., Giglietto, N., Giubellino, P., Grassi, M., Green, P., Grillo, A., Guarino, F., Gustavino, C., Habig, A., Heinz, R., Hong, J.T., Iarocci, E., Katsavounidis, E., Kearns, E., Klein, S., Kyriazopoulou, S., Lamanna, E., Lane, C., Lee, C., Levin, D., Lipari, P., Liu, G., Liu, R., Longo, M.J., Ludlam, G., Mancarella, G., Mandrioli, G., Margiotta-Neri, A., Marin, A., Marini, A., Martello, D., Martellotti, G., Marzari Chiesa, A., Masera, M., Matteuzzi, P., Michael, D.G., Miller, L., Monacelli, P., Monteno, M., Mufson, S., Musser, J., Nicoló, D., Nutter, S., Okada, C., Osteria, G., Palamara, O., Parlati, S., Patera, V., Patrizii, L., Pazzi, R., Peck, C.W., Petrakis, J., Petrera, S., Pignatano, N.D., Pistilli, P., Predieri, F., Ramello, L., Reynoldson, J., Ronga, F., Rosa, G., Satriano, C., Satta, L., Scapparone, E., Scholberg, K., Sciubba, A., Serra Lugaresi, P., Severi, M., Sitta, M., Spinelli, P., Spinetti, M., Spurio, M., Steele, J., Steinberg, R., Stone, J.L., Sulak, L.R., Surdo, A., Tarlé, G., Togo, V., Valente, V., Verdone, G.R., Walter, C.W., Webb, R., and Worstell, W.

Published
1992
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10. First results from the MACRO experiment at the Gran Sasso Laboratory

Author

Bellotti, R., Cafagna, F., Calicchio, M., De Cataldo, G., De Marzo, C., Erriquez, E., Favuzzi, C., Giglietto, N., Nappi, E., Spinelli, P., Cechini, S., Fabbri, M., Giacomelli, G., Mandrioli, G., Matteuzzi, P., Pal, B., Patrizii, L., Predieri, F., Sanzani, G.L., Serra, P., Spurio, M., Sini, G.P., Togo, V., Ahlen, S.P., Ficenec, D., Hazen, E., Klein, S., Levin, D., Marin, A., Stone, J.L., Sulak, L.R., Worstell, W., Barish, B., Coutu, S., Hong, J.T., Liu, G., Peck, C., Solie, D., Steele, J., Lane, C., Steinberg, R., Battistoni, G., Bilokon, H., Bloise, C., Campana, P., Chiarella, V., Forti, C., Grillo, A., Iarocci, E., Marini, A., Patera, V., Reynoldson, J., Ronga, F., Satta, L., Spinetti, M., Valente, V., Bower, C., Heinz, R., Mufson, S., Petrakis, J., Monacelli, P., Reale, A., Bernardini, P., Mancarella, G., Barbarino, G.C., Fiore, M., Baldini, A., Bemporad, C., Flaminio, V., Giannini, G., Grassi, M., Pazzi, R., Auriemma, G., DeVincenzi, M., Iori, M., Lamanna, E., Lipari, P., Martellotti, G., Petrera, S., Petrillo, L., Rosa, G., Sciubba, A., Severi, M., Green, P., Webb, R., Bisi, V., Giubellino, P., Marzari-Chiesa, A., Masera, M., Monteno, M., and Ramello, L.

Published
1991
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11. Measurement of electromagnetic and TEV muon components of extensive air showers by eas-top and MACRO experiments

Author

Belloti, R., Cafagna, F., Callichio, M., De Cataldo, G., De Marzo, C., Enriquez, O., Favuzzi, C., Fusco, P., Giglietto, N., Spinelli, P., Petrakis, J., Cecchini, S., Giacomelli, G., Mandrioli, G., Margiotta-Neri, A., Matteuzzi, P., Patrizii, L., Predieri, F., Sanzani, G.L., Scapparone, E., Serra Lugaresi, P., Spurio, M., Togo, V., Ahlen, S., Cormack, R., Kearns, E., Klein, S., Ludlam, G., Marin, A., Okada, C., Stone, J.L., Sulak, L., Worstell, W., Barish, B., Coutu, S., Hong, J., Katsuvounidis, E., Kyriazopoulou, S., Liu, G., Liu, R., Michael, D., Peck, C., Pignatano, N., Scholberg, K., Steele, J., Walter, C.W., Lane, C., Steinberg, R., Battistoni, G., Bilokon, H., Bloise, C., Campana, P., Carboni, M., Chiarella, V., Forti, C., Grillo, A., Iarocci, E., Marini, A., Patera, V., Ronga, F., Satta, L., Spinetti, M., Valente, V., Gustavino, C., Reynoldson, J., Habig, A., Heinz, R., Miller, L., Mufson, S., Musser, J., Nutter, S., Di Credico, A., Monacelli, P., Bernardini, P., Mancarella, G., Martello, D., Palamara, O., Petrera, S., Pistilli, P., Surdo, A., Diehl, E., Levin, D., Longo, M., Smith, C., Tarlé, G., Ambrosio, M., Barbarino, G.C., Guarino, F., Osteria, G., Baldini, A., Bemporad, C., Cei, F., Giannini, G., Grassi, M., Pazzi, R., Auriemma, G., Bussino, S., Chiera, C., Chrysicopoulou, P., Corona, A., De Vincenzi, M., Foti, L., Lamanna, E., Lipari, P., Martelloti, G., Rosa, G., Sciubba, A., Severi, M., Green, P., Webb, R., Bisi, V., Giubellino, P., Marzari Chiesa, A., Masera, M., Monteno, M., Parlati, S., Ramello, L., Sitta, M., Aglietta, M., Alessandro, B., Arneodo, F., Bergamasco, L., Castagnoli, C., Castellina, A., Cattadori, C., Chiavassa, A., Cini, G., D'Ettorre Piazzoli, B., Fulgione, W., Galeotti, P., Ghia, P.L., Mannocchi, G., Morello, C., Navarra, G., Riccati, L., Saavedra, O., Trinchero, G.C., Vallania, P., and Vernetto, S.

Published
1992
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12. Search for stellar gravitational collapse by MACRO: Characteristics and results

Author

Bellotti, R., Cafagna, F., Calicchio, M., De Cataldo, G., De Marzo, C., Erriquez, O., Favuzzi, C., Fusco, P., Giglietto, N., Spinelli, P., Petrakis, J., Antolini, R., Bam, B.B., Cecchini, S., Giacomelli, G., Mandrioli, G., Margiotta-Neri, A., Matteuzzi, P., Patrizii, L., Predieri, F., Scapparone, E., Serra Lugaresi, P., Spurio, M., Togo, V., Ahlen, S., Cormack, R., Kearns, E., Klein, S., Ludlam, G., Marin, A., Okada, C., Stone, J., Sulak, L., Worstell, W., Barish, B., Coutu, S., Hong, J., Katsuvounidis, E., Kyriazopoulou, S., Liu, G., Liu, R., Michael, D., Peck, C., Pignatano, N., Scholberg, K., Steele, J., Walter, C., Lane, C., Steinberg, R., Battistoni, G., Bilokon, H., Bloise, C., Campana, P., Cavallo, P., Chiarella, V., Forti, C., Grillo, A., Iarocci, E., Marini, A., Patera, V., Ronga, F., Satta, L., Spinetti, M., Valenti, V., Gustavino, C., Reynoldson, J., Habig, A., Heinz, R., Miller, L., Mufson, S., Musser, J., Nutter, S., Di Credico, A., Monacelli, P., Bernardini, P., Mancarella, G., Martello, D., Palamara, O., Petrera, S., Pistilli, P., Surdo, A., Diehl, E., Levin, D., Longo, M., Smith, C., Tarlé, G., Ambrosio, M., Barbarino, G.C., Guarino, F., Osteria, G., Baldini, A., Bemporad, C., Cei, F., Giannini, G., Grassi, M., Pazzi, R., Auriemma, G., Bussino, S., Chiera, C., Chrysicopoulou, P., Corona, A., De Vincenzi, M., Foti, L., Lamanna, E., Lipari, P., Martellotti, G., Rosa, G., Sciubba, A., Severi, M., Green, P., Webb, R., Bisi, V., Giubellino, P., Marzari Chiesa, A., Masera, M., Monteno, M., Parlati, S., Ramello, L., and Sitta, M.

Published
1992
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13. Searches for magnetic monopoles with the MACRO detector at Gran Sasso

Author

Stone, James, Ahlen, S., Ambrosio, M., Antolini, R., Auriemma, G., Baker, R., Baldini, A., Barbarino, G.C., Barish, B.C., Battistoni, G., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bisi, V., Bloise, C., Bosio, T., Bower, C., Bussino, S., Cafagna, F., Calicchio, M., Campana, D., Castellano, M., Carboni, M., Cecchini, S., Cei, F., Chiarella, V., Cormack, R., Corona, A, Coutu, S., De Cataldo, G., Dekhissi, H., De Marzo, C., De Mitri, I., De Vincenzi, M., Di Credico, A., Diehl, E., Erriquez, O., Fantini, R., Favuzzi, C., Forti, C., Fusco, P., Giacomelli, G., Giannini, G., Giglietto, N., Goretti, M., Grassi, M., Green, P., Grillo, A., Guarino, F., Guarnaccia, P., Gustavino, C., Habig, A., Hanson, K., Hawthorne, A., Heinz, R., Hong, J.T., Iarocci, E., Katsavounidis, E., Kearns, E., Kyriazopoulou, S., Lamanna, E., Lane, C., Levin, D.S., Lipari, P., Liu, G., Liu, R., Longley, N.P., Longo, M.J., Lu, Y., Ludlam, G., Mamcarella, G., Mandrioli, G., Margiotta-Neri, A., Marin, A., Marini, A., Martello, D., Marzari-Chiesa, A., Matteuzzi, P., Mazziotta, M.N., Michael, D.G., Mikheyev, S., Miller, L., Mittelbrun, M., Monacelli, P., Montaruli, T., Monteno, M., Mufson, S., Musser, J., Nicoló, D., Nolty, R., Okada, C., Orth, C., Osteria, G., Palamara, O., Parlati, S., Patera, V., Patrizii, L., Pavesi, B., Pazzi, R., Peck, C.W., Petrakis, J., Petrera, S., Pignatano, N.D., Pistilli, P., Popa, V., Rainó, A., Reynoldson, J., Ronga, F., Rossi, C., Rubizzo, U., Sanzani, G., Sanzgiri, A., Sartogo, F., Satriano, C., Satta, L., Scapparone, E., Scholberg, K., Sciubba, A., Serra Lugaresi, P., Severi, M., Sioli, M., Sitta, M., Spada, P.F., Spinelli, P., Spinetti, M., Spurio, M., Steinberg, R., Stone, J.L., Sulak, L.R., Surdo, A., Tarlé, G., Togo, V., Valente, V., Walter, C.W., Webb, R., and Worstell, W.

Published
1996
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14. Initial analysis of coincident events between the SPASE and AMANDA detectors

Author

Miller, T., Beaman, J., Evenson, P.A., Gaisser, T.K., Hart, S., Lloyd-Evans, J., Martello, D., Ogden, P., Petrakis, J., Stanev, Todor, Watson, A.A., Askebjer, P., Barwick, S.W., Bergström, L., Bouchta, A., Carius, S., Erlandsson, B., Goobar, A., Gray, L., Hallgren, L.A., Halzen, F., Hulth, P.O., Jacobsen, J., Johansson, S., Kandhadai, V., Liubarsky, I., Lowder, D.M., Mock, P., Morse, R., Porrata, R., Price, P.B., Richards, A., Rubinstein, H., Sun, Q., Tilav, S., Walck, C., and Yodh, G.

Published
1995
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15. Study of penetrating cosmic ray muons and search for large scale anisotropies at the Gran Sasso Laboratory

Author

Ahlen, S.P., Ambrosio, M., Auriemma, G., Baldini, A., Barbarino, G.C., Barish, B., Battistoni, G., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bisi, V., Bloise, C., Bower, C., Cafagna, F., Calicchio, M., Campana, P., Cecchini, S., Chiarella, V., Chrysicopoulou, P., Coutu, S., Antone, I.D', De Marzo, C., De Cataldo, G., De Vincenzi, M., Erriquez, O., Favuzzi, C., Ficenec, D., Flaminio, V., Forti, C., Giacomelli, G., Giannini, G., Giglietto, N., Giubellino, P., Grassi, M., Green, P., Grillo, A., Guarino, F., Hazen, E., Heinz, R., Hong, J., Iarocci, E., Klein, S., Lamanna, E., Lane, C., Levin, D., Lipari, P., Liu, G., Longo, M., Mancarella, G., Mandrioli, G., Marin, A., Marini, A., Martellotti, G., Marzari-Chiesa, A., Masera, M., Matteuzzi, P., Miller, L., Monacelli, P., Monteno, M., Mufson, S., Musser, J., Nappi, E., Osteria, G., Pal, B., Palamara, O., Pasquale, M., Patera, V., Patrizii, L., Pazzi, R., Peck, C., Petrakis, J., Petrera, S., Petrillo, L., Pistilli, P., Predieri, F., Ramello, L., Reynoldson, J., Ronga, F., Rosa, G., Sanzani, G.L., Satta, L., Sciubba, A., Serra-Lugaresi, P., Severi, M., Smith, C., Solie, D., Spinelli, P., Spinetti, M., Spurio, M., Steele, J., Steinberg, R., Stone, J.L., Sulak, L.R., Surdo, A., Tarlè, G., Valente, V., Webb, R., and Worstell, W.

Published
1990
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16. Study of the primary cosmic ray composition around the knee of the energy spectrum

Author

Aglietta, M., Alessandro, B., Antonioli, P., Arneodo, F., Bergamasco, L., Bertaina, M., Fauth, A.Campos, Castagnoli, C., Castellina, A., Cattadori, C., Chiavassa, A., Cini, G., D'Ettorre Piazzoli, B., Di Sciascio, G., Fulgione, W., Galeotti, P., Ghia, P.L., Iacovacci, M., Mannocchi, G., Melagrana, C., Morello, C., Navarra, G., Riccati, L., Saavedra, O., Trinchero, G.C., Vallania, P., Vernetto, S., Ahlen, S., Ambrosio, M., Antolini, R., Auriemma, G., Baker, R., Baldini, A., Barbarino, G.C., Barish, B.C., Battistoni, G., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bisi, V., Bloise, C., Bower, C., Bussino, S., Cafagna, F., Calicchio, M., Campana, D., Carboni, M., Cecchini, S., Cei, F., Chiarella, V., Cormack, R., Corona, A., Coutu, S., DeCataldo, G., Dekhissi, H., DeMarzo, C., De Mitri, M., De Vincenzi, M., Di Credico, A., Diehl, E., Erriquez, O., Favuzzi, C., Ficenec, D., Forti, C., Fusco, P., Giacomelli, G., Giannini, G., Giglietto, N., Goretti, M., Grassi, M., Green, P., Grillo, A., Guarino, F., Guarnaccia, P., Gustavino, C., Habig, A., Hanson, K., Heinz, R., Hong, J.T., Iarocci, E., Katsavounidis, E., Kearns, E., Klein, S., Kyriazopoulou, S., Lamanna, E., Lane, C., Levin, D.S., Lipari, P., Liu, G., Liu, R., Longo, M.J., Lu, Y., Ludlam, G., Mancarella, G., Mandrioli, G., Margiotta-Neri, A., Marin, A., Marini, A., Martello, D., Chiesa, A.Marzari, Matteuzzi, P., Mazziotta, M.N., Michael, D.G., Mikheyev, S., Miller, L., Mittelbrun, M., Monacelli, P., Montaruli, T., Monteno, M., Mufson, S., Musser, J., Nicoló, D., Nolty, R., Nutter, S., Okada, C., Osteria, G., Palamara, O., Parlati, S., Patera, V., Patrizii, L., Pavesi, B., Pazzi, R., Peck, C.W., Petrakis, J., Petrera, S., Pignatano, N.D., Pistilli, P., Rainó, A., Reynoldson, J., Ronga, F., Sanzani, G., Sanzgiri, A., Sartogo, F., Satriano, C., Satta, L., Scapparone, E., Scholberg, K., Sciubba, A., Lugaresi, P.Serra, Severi, M., Sitta, M., Spinelli, P., Spinetti, M., Spurio, M., Steele, J., Steinberg, R., Stone, J.L., Sulak, L.R., Surdo, A., Tarlé, G., Togo, V., Valente, V., Walter, C.W., Webb, R., and Worstell, W.

Published
1994
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17. Atmospheric neutrino flux measurement using upgoing muons

Author

Ahlen, S., Ambrosio, M., Antolini, R., Auriemma, G., Baker, R., Baldini, A., Barbarino, G.C., Barish, B.C., Battistoni, G., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bisi, V., Bloise, C., Bower, C., Bussino, S., Cafagna, F., Calicchio, M., Campana, D., Carboni, M., Castellano, M., Cecchini, S., Cei, F., Celio, P., Chiarella, V., Cormack, R., Corona, A., Coutu, S., De Cataldo, G., Dekhissi, H., De Marzo, C., Diehl, E., De Mitri, I., De Vincenzi, M., Di Credico, A., Erriquez, O., Favuzzi, C., Forti, C., Fusco, P., Giacomelli, G., Giannini, G., Giglietto, N., Grassi, M., Green, P., Grillo, A., Guarino, F., Guarnaccia, P., Gustavino, C., Habig, A., Hanson, K., Hawthorne, A., Heinz, R., Hong, J.T., Iarocci, E., Katsavounidis, E., Kearns, E., Kyriazopoulou, S., Lamanna, E., Lane, C., Levin, D.S., Lipari, P., Liu, G., Liu, R., Longley, N.P., Longo, M.J., Lu, Y., Ludlam, G., Mancarella, G., Mandrioli, G., Margiotta-Neri, A., Marin, A., Marini, A., Martello, D., Marzari-Chiesa, A., Mazziotta, M.N., Michael, D.G., Mikheyev, S., Miller, L., Mittelbrunn, M., Monacelli, P., Montaruli, T., Monteno, M., Mufson, S., Musser, J., Nicoló, D., Nolty, R., Nutter, S., Okada, C., Orth, C., Osteria, G., Palamara, O., Parlati, S., Patera, V., Patrizii, L., Pazzi, R., Peck, C.W., Petrakis, J., Petrera, S., Pignatano, N.D., Pistilli, P., Popa, V., Rainó, A., Reynoldson, J., Ronga, F., Sanzgiri, A., Sartogo, F., Satriano, C., Satta, L., Scapparone, E., Scholberg, K., Sciubba, A., Serra-Lugaresi, P., Severi, M., Sitta, M., Spinelli, P., Spinetti, M., Spurio, M., Steinberg, R., Stone, J.L., Sulak, L.R., Surdo, A., Tarlé, G., Togo, V., Valente, V., Walter, C.W., Webb, R., and Worstell, W.

Published
1995
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19. First supermodule of the MACRO detector at Gran Sasso

Author

Ahlen, S., Ambrosio, M., Antolini, R., Auriemma, G., Baldini, A., Barbarino, G.C., Barish, B., Battistoni, G., Bellotti, R., Bemporad, C., Bernardini, P., Bilokon, H., Bisi, V., Bloise, C., Boiano, A., Bower, C., Bussino, S., Cafagna, F., Calicchio, M., Campana, P., Campana, D., Candela, A., Carboni, M., Cecchini, S., Cei, F., Chiarella, V., Chiera, C., Cobis, A., Cormack, R., Corona, A., Cosson, D., Coutu, S., D'Antone, I., De Cataldo, G., De Marzo, C., Denni, U., De Seriis, N., DeVincenzi, M., Di Credico, A., Diehl, E., Diotallevi, R., Erriquez, O., Favuzzi, C., Ficenec, D., Forti, C., Foti, L., Frani, A., Fusco, P., Gherarducci, F., Giacomelli, G., Giannini, G., Giglietto, N., Giubellino, P., Grassi, M., Green, P., Grillo, A., Guarino, F., Gustavino, C., Habig, A., Hanson, J., Hazen, E., Heinz, R., Hong, J.T., Iarocci, E., Katsavounidis, E., Kearns, E., Klein, S., Kyriazopoulou, S., Lamanna, E., Lane, C., Lee, C., Levin, D., Lipari, P., Liu, G., Liu, R., Longo, M.J., Ludlam, G., Mancarella, G., Mandrioli, G., Marin, A., Marini, A., Martello, D., Martellotti, G., Marzari Chiesa, A., Masera, M., Matteuzzi, P., Mengucci, A., Merritt, S., Michael, D.G., Miller, L., Monacelli, P., Mongelli, M., Monteno, M., Mufson, S., Musser, J., Nutter, S., Okada, C., Osteria, G., Palamara, O., Parascandalo, P., Parlati, S., Patera, V., Patrizii, L., Pazzi, R., Peck, C.W., Pellizzoni, G., Perchiazzi, M., Petrakis, J., Petrera, S., Pignatano, N.D., Pinto, C., Pistilli, P., Predieri, F., Ramello, L., Reynoldson, J., Ronga, F., Rosa, G., Sacchetti, A., Sanzani, G., Satriano, C., Satta, L., Scapparone, E., Scholberg, K., Sciubba, A., Serra Lugaresi, P., Severi, M., Sitta, M., Spinelli, P., Spinetti, M., Spurio, M., Steele, J., Steinberg, R., Stone, J.L., Sulak, L.R., Surdo, A., Tarlé, G., Tazzioli, A., Togo, V., Valente, V., Verdone, G.R., Walter, C.W., Webb, R., Welte, F., and Worstell, W.

Published
1993
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20. The macro detector at the Gran Sasso Laboratory

Author

Calicchio, M., Case, G., Demarzo, C., Erriquez, O., Favuzzi, C., Giglietto, N., Nappi, E., Posa, F., Spinelli, P., Baldetti, F., Cecchini, S., Giacomelli, G., Grianti, F., Mandrioli, G., Margiotta, A., Patrizii, L., Sanzani, G., Serra, P., Spurio, M., Ahlen, S., Ciocio, A., Felcini, M., Ficenec, D., Incandela, J., Marin, A., Stone, J., Sulak, L., Worstell, W., Barish, B., Lane, C., Liu, G., Peck, C., Poulard, G., Sletten, H., Cohen, S., Ide, N., Manka, A., Steinberg, R., Battistoni, G., Bilokon, H., Bloise, C., Campana, P., Chiarella, V., Grillo, A., Iarocci, E., Marini, A., Reynoldson, J., Rindi, A., Ronga, F., Satta, L., Spinetti, M., Valente, V., Heinz, R., Mufson, S., Petrakis, J., Monacelli, P., Reale, A., Longo, M., Musser, J., Smith, C., Tarlé, G., Ambrosio, M., Barbarino, B.C., Grancagnolo, F., Onnembo, A., Palladino, V., Angelini, C., Baldini, A., Bemporad, C., Flaminio, V., Giannini, G., Pazzi, R., Auriemma, G., De Vincenzi, M., Lamanna, E., Martellotti, G., Palamara, O., Petrera, S., Petrillo, L., Pistilli, P., Rosa, G., Sciubba, A., Severi, M., Green, P., Webb, R., Bisi, V., Guibellino, P., Marzari Chiesa, A., Ramello, L., Soli, D., and Trower, P.

Published
1988
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22. First results from the MACRO detector at the Gran Sasso Laboratory

Author

Calicchio, M., De Cataldo, G., De Marzo, C., Erriquez, O., Favuzzi, C., Giglietto, N., Nappi, E., Spinelli, P., Cecchini, S., Fabbri, M., Giacomelli, G., Mandrioli, G., Matteuzzi, P., Pal, B., Patrizii, L., Predieri, F., Sanzani, G.L., Serra, P., Spurio, M., Sini, G.P., Togo, V., Ahlen, S.P., Ficenec, D., Hazen, E., Klein, S., Levin, D., Marin, A., Stone, J.L., Sulak, L.R., Worstell, W., Barish, B., Coutu, S., Hong, J.T., Liu, G., Peck, C., Solie, D., Steele, J., Lane, C., Steinberg, R., Battistoni, G., Bilokon, H., Bloise, C., Campana, P., Chiarella, V., Forti, C., Grillo, A., Iarocci, E., Marini, A., Patera, V., Reynoldson, J., Ronga, F., Satta, L., Spinetti, M., Valente, V., Bower, C., Heinz, R., Mufson, S., Petrakis, J., Monacelli, P., Bernardini, P., Mancarella, G., Palamara, O., Pistilli, P., Surdo, A., Longo, M., Musser, J., Smith, C., Tarlé, G., Ambrosio, M., Barbarino, G.C., Fiore, M., Baldini, A., Bemporad, C., Flaminio, V., Giannini, G., Grassi, M., Pazzi, R., Auriemma, G., DeVincenzi, M., Iori, M., Lamanna, E., Lipari, P., Martellotti, G., Petrera, S., Petrillo, L., Rosa, G., Sciubba, A., Severi, M., Green, P., Webb, R., Bisi, V., Giubellino, P., Chiesa, A.Marzari, Masera, M., Monteno, M., and Ramello, L.

Published
1990
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23. Coexistance of a well differentiated liposarcoma and dedifferentiated low grade myxofibrosarcoma of the scrotum. A rare case and review of the literature.

Author

Xenaki S, Panagiotakis G, Lagoudaki H, Tzardi M, Chrysos E, and Petrakis J

Subjects
Fibrosarcoma surgery, Genital Neoplasms, Male surgery, Humans, Liposarcoma surgery, Male, Middle Aged, Neoplasms, Multiple Primary surgery, Fibrosarcoma pathology, Genital Neoplasms, Male pathology, Liposarcoma pathology, Neoplasms, Multiple Primary pathology, Scrotum
Abstract

Liposarcoma is a malignant soft tissue sarcoma usually located in the thigh or the posterior peritoneum in an adult. However, the occurrence of liposarcoma, and indeed a coexistance with scrotal myxofibrosarcoma, is rare. We present an interesting case of a 56-year old male who presented with an inguinal hernia. During the operation a massive fibro-elastic mass located within the left scrotum was noticed which deposited the testicle upward by displacing it into a sack rather than the penis. The mass did not come into contact with the spermatic cord but alongside it the existence of the blood vessels of the mass was found. The histopathological examination revealed a well differentiated liposarcoma along with dedifferentiated low grade myxofibrosarcoma.

Published
2019

24. Use of incisional vacuum-assisted closure in the prevention of postoperative infection in high-risk patients who underwent spine surgery: a proof-of-concept study.

Author

Dyck BA, Bailey CS, Steyn C, Petrakis J, Urquhart JC, Raj R, and Rasoulinejad P

Subjects
Adult, Aged, Female, Humans, Male, Middle Aged, Retrospective Studies, Risk Factors, Negative-Pressure Wound Therapy methods, Spinal Fusion adverse effects, Surgical Wound Infection prevention & control, Surgical Wound Infection surgery
Abstract

Objective: This proof-of-concept study was conducted to determine whether negative-pressure wound therapy, through the use of incisional vacuum-assisted closure (VAC), is associated with a reduction in surgical site infections (SSIs) when compared to standard wound dressings in patients undergoing open posterior spinal fusion who have a high risk of infection., Methods: A total of 64 patients were examined; 21 patients received incisional VAC application (VAC group) versus 43 diagnosis-matched patients who received standard wound dressings (control group). Patients in the VAC group were prospectively enrolled in a consecutive series between March 2013 and March 2014 if they met the following diagnostic criteria for high risk of infection: posterior open surgery across the cervicothoracic junction; thoracic kyphosis due to metastatic disease; high-energy trauma; or multilevel revision reconstructive surgery. Patients in the VAC group also met one or more comorbidity criteria, including body mass index ≥ 35 or < 18.5, diabetes, previous radiation at surgical site, chemotherapy, steroid use, bedridden state, large traumatic soft-tissue disruption, or immunocompromised state. Consecutive patients in the control group were retrospectively selected from the previous year by the same high-risk infection diagnostic criteria as the VAC group. All surgeries were conducted by the same surgeon at a single site. The primary outcome was SSI. All patients had 1 year of follow-up after their surgery. Baseline demographics, intraoperative parameters, and postoperative wound infection rates were compared between groups., Results: Patient demographics including underlying comorbidities were similar, with the exception that VAC-treated patients were malnourished (p = 0.020). VAC-treated patients underwent longer surgeries (p < 0.001) and required more postoperative ICU admissions (p = 0.039). The median length of hospital stay was not different between groups. In total, 9 control patients (21%) developed an SSI, versus 2 VAC-treated patients (10%)., Conclusions: Patients in this cohort were selected to have an increased risk of infection; accordingly, the rate of SSI was high. However, negative-pressure wound therapy through VAC application to the postoperative incision resulted in a 50% reduction in SSI. No adverse effects were noted secondary to VAC application. The preliminary data confirm the authors' proof of concept and strongly support the need for a prospective randomized trial.

Published
2019
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25. Readiness for and predictors of evidence base practice in Greek healthcare settings.

Author

Patelarou AE, Laliotis A, Brokalaki H, Petrakis J, Dafermos V, and Koukia E

Subjects
Adult, Female, Greece, Humans, Male, Middle Aged, Surveys and Questionnaires, Attitude of Health Personnel, Evidence-Based Nursing organization & administration, Health Knowledge, Attitudes, Practice, Nursing Staff, Hospital psychology
Abstract

Background: Implementation of evidence-based practice (EBP) remains limited in healthcare settings and knowledge of predictors of healthcare professionals' EBP activities is lacking., Aim: Describe nurses' readiness for EBP and identify related predictors in Greek healthcare settings we conducted a survey., Results: Nurses scored high in the EBP readiness scale reflecting significant positive readiness toward EBP and consistently reported favourable attitudes toward and beliefs about EBP. However, half of them were unsure about their ability to engage in EBP despite the fact that they valued research-based practice as important. EBP specific domains including the "EBP-attitude", the "EBP-knowledge", the "Informational needs" and the "Workplace culture" and nurses' demographics as well, were found to be strong predictors of EBP readiness among Greek nurses., Conclusion: As nurses are now more aware of and open to the idea of EBP, diverse strategies and well-designed interventions to facilitate the desired change to practice are needed., (Copyright © 2017 Elsevier Inc. All rights reserved.)

Published
2017
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26. Frailty predicts outcome of elective laparoscopic cholecystectomy in geriatric patients.

Author

Lasithiotakis K, Petrakis J, Venianaki M, Georgiades G, Koutsomanolis D, Andreou A, Zoras O, and Chalkiadakis G

Subjects
Aged, Elective Surgical Procedures, Female, Frail Elderly, Humans, Male, Postoperative Complications epidemiology, Postoperative Complications etiology, Prospective Studies, Treatment Outcome, Cholecystectomy, Laparoscopic adverse effects, Geriatric Assessment
Abstract

Background: Frailty is a phenotype characterized by complex and challenging medical problems and higher susceptibility to adverse health outcomes. It can be derived at by a multidimensional process known as comprehensive geriatric assessment (CGA), which assesses the functional reserves of the elderly. In this study we report for the first time on a prospective evaluation of the association between CGA and postoperative complications after elective laparoscopic cholecystectomy for biliary disease., Methods: Fifty-seven patients older than 65 years who were to undergo elective laparoscopic cholecystectomy for uncomplicated biliary disease were prospectively examined. Preoperative CGA was performed and the patients were categorized as fit or frail. The main outcome of the study was the rate of any postoperative complication within 30 days of surgery., Results: There were 29 women (50.9 %) and the median (interquartile range) age of the cohort was 73 (8.8) years. Thirty-two patients (56.1 %) were categorized as frail and 25 (43.9 %) as fit. The overall incidence of postoperative complications was 23.7 %, most of which were grade I and II (18.8 %). Frail patients, according to the CGA assessment, experienced a significantly higher incidence of postoperative complications compared to their fit counterparts (84.6 vs. 15.4 %, p = 0.023). Frail patients experienced a significantly higher frequency of prolonged (more than 2 days) postoperative hospital stay compared with their fit counterparts (p = 0.023)., Conclusions: Preoperative CGA may predict postoperative complications and prolonged postoperative hospital stay of elderly patients who undergo elective laparoscopic cholecystectomy. Larger-scale studies independently assessing this association are warranted.

Published
2013
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27. Coil embolization of inferior epigastric artery pseudoaneurysm after percutaneous thrombin injection failure: a case report.

Author

Krokidis M, Hatzidakis A, Petrakis J, Lagoudis T, and Tsetis D

Abstract

We report a case of a 71-year old woman with right inferior epigastric artery pseudoaneurysm following laceration by a computed tomography-guided 18G biopsy needle. The laceration was initially treated with placement of retained sutures; however the patient turned hemodynamically unstable 41 days later. Percutaneous ultrasound-guided injection of 1500 U of thrombin solution resulted in almost complete thrombosis of the pseudoaneurysm; however 24 hour control ultrasound revealed refilling of the pseudoaneurysm. Definite treatment was achieved by transcatheter coil embolization. Inferior epigastric artery pseudoaneurysm with underlying laceration may not respond to percutaneous thrombin injection, whereas coil embolization is shown to be effective.

Published
2009
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28. Hepatic artery aneurysm presenting with hemobilia in a patient with Behçet's disease: treatment with percutaneous transcatheteral embolization.

Author

Hatzidakis A, Petrakis J, Krokidis M, Tsetis D, and Gourtsoyiannis N

Subjects
Adult, Aneurysm etiology, Behcet Syndrome complications, Hemobilia etiology, Humans, Male, Aneurysm therapy, Embolization, Therapeutic methods, Hemobilia therapy, Hepatic Artery
Abstract

We herein report a case of hemobilia caused by a hepatic artery aneurysm. A 40-year-old male patient with a history of Behçet's disease with a thrombus hanging out of the papilla of Vater had a large hepatic aneurysm in angiography. The hepatic artery feeding the aneurysm was embolized. Endovascular treatment can treat patients with hepatic artery aneurysms caused by Behçet's disease.

Published
2006

29. Enhancement of gastric emptying of solids by erythromycin in patients with Roux-en-Y gastrojejunostomy.

Author

Petrakis J, Vassilakis JS, Karkavitsas N, Tzovaras G, Epanomeritakis E, Tsiaoussis J, and Xynos E

Subjects
Adult, Aged, Anastomosis, Roux-en-Y, Erythromycin therapeutic use, Female, Food, Gastric Emptying physiology, Humans, Male, Middle Aged, Postoperative Complications physiopathology, Erythromycin analogs & derivatives, Gastric Emptying drug effects, Gastrostomy adverse effects, Gastrostomy methods, Jejunostomy adverse effects, Jejunostomy methods, Postoperative Complications prevention & control
Abstract

Background: Roux-en-Y reconstruction is sometimes associated with symptoms that suggest food stasis, as a result of dysmotility of either the gastric remnant and/or the efferent jejunal limb., Objective: To study the possible effect of intravenous erythromycin lactobionate on gastric emptying of solids in patients who have undergone a Roux-en-Y procedure., Patients: Twenty-four patients with a Roux-en-Y procedure participated in the study. Ten of them had undergone truncal vagotomy with pyloroplasty; the remaining 14 had undergone a Billroth II subtotal gastrectomy as the initial antiulcer procedure. Sixteen healthy subjects served as controls., Methods: All healthy subjects and patients underwent assessment of gastric emptying of a standard radiolabeled solid meal after administration of placebo or 200 mg of erythromycin lactobionate intravenously. Scanning was done with a gamma camera, and emptying curves were constructed. From these curves the half-time of gastric emptying was calculated., Results: Patients with severe symptoms of gastric stasis had a significantly longer half-time than did patients with mild or no symptoms (P=.002). Patients with a Billroth II subtotal gastrectomy as the initial antiulcer procedure had a significantly worse grade of symptoms (P=.01) and a significantly prolonged half-time (P=.02) compared with patients with a truncal vagotomy with pyloroplasty as the initial antiulcer procedure. Erythromycin significantly reduced the half-time in the controls (P<.001) and all patients after Roux-en-Y procedure (P<.001)., Conclusion: Erythromycin could be a useful prokinetic drug in patients with Roux stasis syndrome.

Published
1998
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31. Simultaneous observation of extensive air showers and deep-underground muons at the Gran Sasso Laboratory.

Author

Bellotti R, Cafagna F, Caliccio M, De Cataldo G, De Marzo C, Erriquez O, Favuzzi C, Giglietto N, Nappi E, Spinelli P, Cecchini S, Fabbri M, Giacomelli G, Mandrioli G, Matteuzzi P, Pal B, Patrizii L, Predieri F, Sanzani GL, Serra P, Spurio M, Ahlen S, Ficenec D, Hazen E, Klein S, Levin D, Marin A, Stone JL, Sulak LR, Worstell W, Barish B, Coutu S, Hong J, Liu G, Peck C, Solie D, Steele J, Lane C, Steinberg R, Battistoni G, Bilokon H, Bloise C, Campana P, Chiarella V V, Forti C, Grillo A, Iarocci E, Marini A, Patera V V, Reynoldson J, Ronga F, Satta L, Spinetti M, Valente V V, Bower C, Heinz R, Mufson S, Petrakis J, Monacelli P, Bernardini P, Mancarella G, Palamara O, Pistilli P, and Surdo A

Published
1990
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32. Acute pain services in a community hospital.

Author

Petrakis JK

Subjects
Acute Disease, Humans, Anesthesia Department, Hospital organization & administration, Hospitals, Community organization & administration, Pain drug therapy
Abstract

The development of an acute pain service in a community hospital is described. A plan of operation is proposed, including accurate record maintenance to avoid complications. Results are presented on over 10,000 patients treated by the acute pain service.

Published
1989
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33. Epidural analgesia and its effects on the "normal" progress of labor.

Author

Phillips JC, Hochberg CJ, Petrakis JK, and Van Winkle JD

Subjects
Bupivacaine administration & dosage, Bupivacaine pharmacology, Cervix Uteri drug effects, Cesarean Section, Delivery, Obstetric, Epinephrine administration & dosage, Epinephrine pharmacology, Female, Humans, Labor Presentation, Labor, Induced, Obstetrical Forceps, Parity, Pregnancy, Anesthesia, Epidural, Anesthesia, Obstetrical, Labor, Obstetric drug effects
Abstract

The effects of epidural analgesia on the duration of labor have been a controversal subject since its increased use in recent years. A total of 598 patients receiving this form of analgesia were studied as to progress in labor and eventual outcome. The mean cervical changes during epidural analgesia with a single drug, bupivacaine, 0.125%, with epinephrine, 1:200,000, have been calculated. The labor curves are characterized by constant acceleration in dilatation without deceleration at approximately the same rate for nulliparous and multiparous patients after dilatation of 5 cm. has been reached. Examination of maternal and fetal profiles failed to demonstrate any consistent variables that produce abnormal labor.

Published
1977
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