Cost-effectiveness of emergency versus delayed laparoscopic cholecystectomy for acute gallbladder pathology

Autor: A J Sutton, R S Vohra, M Hollyman, P J Marriott, A Buja, D Alderson, S Pasquali, E A Griffiths, P Spreadborough, A Kirkham, S Fenwick, M Elmasry, Q M Nunes, D Kennedy, R B Khan, M A S Khan, C J Magee, S M Jones, D Mason, C P Parappally, P Mathur, M Saunders, S Jamel, S Ul Haque, S Zafar, M H Shiwani, N Samuel, F Dar, A Jackson, B Lovett, S Dindyal, H Winter, T Fletcher, S Rahman, K Wheatley, T Nieto, S Ayaani, H Youssef, R S Nijjar, H Watkin, D Naumann, S Emesih, P B Sarmah, K Lee, N Joji, J Heath, R L Teasdale, C Weerasinghe, P J Needham, H Welbourn, L Forster, D Finch, J M Blazeby, W Robb, A G K McNair, A Hrycaiczuk, A Charalabopoulos, S Kadirkamanathan, C-B Tang, N V G Jayanthi, N Noor, B Dobbins, A J Cockbain, A Nilsen-Nunn, J de Siqueira, M Pellen, J B Cowley, W-M Ho, V Miu, T J White, K A Hodgkins, A Kinghorn, M G Tutton, Y A Al-Abed, D Menzies, A Ahmad, J Reed, S Khan, D Monk, L J Vitone, G Murtaza, A Joel, S Brennan, D Shier, C Zhang, T Yoganathan, S J Robinson, I J D McCallum, M J Jones, M Elsayed, E Tuck, J Wayman, K Carney, S Aroori, K B Hosie, A Kimble, D M Bunting, A S Fawole, M Basheer, R V Dave, J Sarveswaran, E Jones, C Kendal, M P Tilston, M Gough, T Wallace, S Singh, J Downing, K A Mockford, E Issa, N Shah, N Chauhan, T R Wilson, A Forouzanfar, J R L Wild, E Nofal, C Bunnell, K Madbak, S T V Rao, L Devoto, N Siddiqi, Z Khawaja, J C Hewes, L Gould, A Chambers, D U Rodriguez, G Sen, S Robinson, F Bartlett, D M Rae, T E J Stevenson, K Sarvananthan, S J Dwerryhouse, S M Higgs, O J Old, T J Hardy, R Shah, S T Hornby, K Keogh, L Frank, M Al-Akash, E A Upchurch, R J Frame, M Hughes, C Jelley, S Weaver, S Roy, T O Sillo, G Galanopoulos, T Cuming, P Cunha, S Tayeh, S Kaptanis, M Heshaishi, A Eisawi, M Abayomi, W S Ngu, K Fleming, D S Bajwa, V Chitre, K Aryal, P Ferris, M Silva, S Lammy, S Mohamed, A Khawaja, A Hussain, M A Ghazanfar, M I Bellini, H Ebdewi, M Elshaer, G Gravante, B Drake, A Ogedegbe, D Mukherjee, C Arhi, L G N Iqbal, N F Watson, S K Aggarwal, P Orchard, E Villatoro, P D Willson, J Mok, T Woodman, J Deguara, G Garcea, B I Babu, A R Dennison, D Malde, D Lloyd, S Satheesan, O Al-Taan, A Boddy, J P Slavin, R P Jones, L Ballance, S Gerakopoulos, P Jambulingam, S Mansour, N Sakai, V Acharya, M M Sadat, L Karim, D Larkin, K Amin, A Khan, J Law, S Jamdar, S R Smith, K Sampat, K M O'shea, M Manu, F M Asprou, N S Malik, J Chang, M Johnstone, M Lewis, G P Roberts, B Karavadra, E Photi, J Hewes, D Rodriguez, D A O'Reilly, A J Rate, H Sekhar, L T Henderson, B Z Starmer, P O Coe, S Tolofari, J Barrie, G Bashir, J Sloane, S Madanipour, C Halkias, A E J Trevatt, D W Borowski, J Hornsby, M J Courtney, S Virupaksha, K Seymour, H Hawkins, S Bawa, P V Gallagher, A Reid, P Wood, J G Finch, J Parmar, E Stirland, J Gardner-Thorpe, A Al-Muhktar, M Peterson, A Majeed, F M Bajwa, J Martin, A Choy, A Tsang, N Pore, D R Andrew, W Al-Khyatt, C Taylor, S Bhandari, D Subramanium, S K C Toh, N C Carter, S Tate, B Pearce, D Wainwright, S J Mercer, B Knight, V Vijay, S Alagaratnam, S Sinha, S S El-Hasani, A A Hussain, V Bhattacharya, N Kansal, T Fasih, C Jackson, M N Siddiqui, I A Chishti, I J Fordham, Z Siddiqui, H Bausbacher, I Geogloma, K Gurung, G Tsavellas, P Basynat, A K Shrestha, S Basu, A C Mohan, M Harilingam, M Rabie, M Akhtar, P Kumar, S F Jafferbhoy, N Hussain, S Raza, M Haque, I Alam, R Aseem, S Patel, M Asad, M I Booth, W R Ball, C P J Wood, A C Pinho-Gomes, A Kausar, M R Obeidallah, J Varghase, J Lodhia, D Bradley, C Rengifo, D Lindsay, S Gopalswamy, I Finlay, S Wardle, N Bullen, S Y Iftikhar, A Awan, J Ahmed, P Leeder, G Fusai, G Bond-Smith, A Psica, Y Puri, D Hou, F Noble, K Szentpali, J Broadhurst, R Date, M R Hossack, Y L Goh, P Turner, V Shetty, M Riera, C A W Macano, A Sukha, S R Preston, J R Hoban, D J Puntis, S V Williams, R Krysztopik, J Kynaston, J Batt, M Doe, A Goscimski, G H Jones, C Hall, N Carty, S Panteleimonitis, R T Gunasekera, A R G Sheel, H Lennon, C Hindley, M Reddy, R Kenny, N Elkheir, E R McGlone, R Rajaganeshan, K Hancorn, A Hargreaves, R Prasad, D A Longbotham, D Vijayanand, I Wijetunga, P Ziprin, C R Nicolay, G Yeldham, E Read, J A Gossage, R C Rolph, H Ebied, M Phull, M A Khan, M Popplewell, D Kyriakidis, N Henley, J R Packer, L Derbyshire, J Porter, S Appleton, M Farouk, M Basra, N A Jennings, S Ali, V Kanakala, H Ali, R Lane, R Dickson-Lowe, P Zarsadias, D Mirza, S Puig, K Al Amari, D Vijayan, R Sutcliffe, R Marudanayagam, Z Hamady, A R Prasad, A Patel, D Durkin, P Kaur, L Bowen, J P Byrne, K L Pearson, T G Delisle, J Davies, M A Tomlinson, M A Johnpulle, C Slawinski, A Macdonald, J Nicholson, K Newton, J Mbuvi, A Farooq, B S Mothe, Z Zafrani, D Brett, J Francombe, J Barnes, M Cheung, A Z Al-Bahrani, G Preziosi, T Urbonas, J Alberts, M Mallik, K Patel, A Segaran, T Doulias, P A Sufi, C Yao, S Pollock, A Manzelli, S Wajed, M Kourkulos, R Pezzuto, M Wadley, E Hamilton, S Jaunoo, R Padwick, M Sayegh, R C Newton, M Hebbar, S F Farag, J Spearman, M F Hamdan, C D'Costa, C Blane, M Giles, M B Peter, N A Hirst, T Hossain, A Pannu, Y El-Dhuwaib, T E M Morrison, G W Taylor, R L E Thompson, K McCune, P Loughlin, R Lawther, C K Byrnes, D J Simpson, A Mawhinney, C Warren, D McKay, C McIlmunn, S Martin, M MacArtney, T Diamond, P Davey, C Jones, J M Clements, R Digney, W M Chan, S McCain, S Gull, A Janeczko, E Dorrian, A Harris, S Dawson, D Johnston, B McAree, E Ghareeb, G Thomas, M Connelly, S McKenzie, K Cieplucha, G Spence, W Campbell, G Hooks, N Bradley, A D K Hill, J T Cassidy, M Boland, P Burke, D M Nally, E Khogali, W Shabo, E Iskandar, G P McEntee, M A O'Neill, C Peirce, E M Lyons, A W O'Sullivan, R Thakkar, P Carroll, I Ivanovski, P Balfe, M Lee, D C Winter, M E Kelly, E Hoti, D Maguire, P Karunakaran, J G Geoghegan, F McDermott, S T Martin, K S Cross, F Cooke, S Zeeshan, J O Murphy, K Mealy, H M Mohan, Y Nedujchelyn, M F Ullah, I Ahmed, F Giovinazzo, J Milburn, S Prince, E Brooke, J Buchan, A M Khalil, E M Vaughan, M I Ramage, R C Aldridge, S Gibson, G A Nicholson, D G Vass, A J Grant, D J Holroyd, M A Jones, C M L R Sutton, P O'Dwyer, F Nilsson, B Weber, T K Williamson, K Lalla, A Bryant, C R Carter, C R Forrest, D I Hunter, A H Nassar, M N Orizu, K Knight, H Qandeel, S Suttie, R Belding, A McClarey, A T Boyd, G J K Guthrie, P J Lim, A Luhmann, A J M Watson, C H Richards, L Nicol, M Madurska, E Harrison, K M Boyce, A Roebuck, G Ferguson, P Pati, M S J Wilson, F Dalgaty, L Fothergill, P J Driscoll, K L Mozolowski, V Banwell, S P Bennett, P N Rogers, B L Skelly, C L Rutherford, A K Mirza, T Lazim, H C C Lim, D Duke, T Ahmed, W D Beasley, M D Wilkinson, G Maharaj, C Malcolm, T H Brown, G M Shingler, N Mowbray, R Radwan, P Morcous, S Wood, A Kadhim, D J Stewart, A L Baker, N Tanner, H Shenoy, S Hafiz, J A De Marchi, D Singh-Ranger, E Hisham, P Ainley, S O'Neill, J Terrace, S Napetti, B Hopwood, T Rhys, S Kanavati, M Coats, D Aleksandrov, C Kallaway, S Yahya, A Templeton, M Trotter, C Lo, A Dhillon, N Heywood, Y Aawsaj, A Hamdan, O Reece-Bolton, A McGuigan, Y Shahin, A Ali, A Luther, J A Nicholson, I Rajendran, M Boal, J Ritchie

Publikováno v: Sutton, A J 2017, ' Cost-effectiveness of emergency versus delayed laparoscopic cholecystectomy for acute gallbladder pathology ', British Journal of Surgery, vol. 104, no. 1, pp. 98-107 . https://doi.org/10.1002/bjs.10317

Background The optimal timing of cholecystectomy for patients admitted with acute gallbladder pathology is unclear. Some studies have shown that emergency cholecystectomy during the index admission can reduce length of hospital stay with similar rate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95034f5602d806f2a3adb032cf1a32be
http://www.scopus.com/inward/record.url?scp=85006488712&partnerID=8YFLogxK

Optimal unsupervised learning

Autor: T L H Watkin, Jean-Pierre Nadal

Publikováno v: Journal of Physics A: Mathematical and General. 27:1899-1915

We introduce an inferential approach to unsupervised learning which allows us to define an optimal learning strategy. Applying these ideas to a simple, previously studied model, we show that it is impossible to detect structure in data until a critic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::94d942ca9f4d0f4a103b64f7f35299f2
https://doi.org/10.1088/0305-4470/27/6/016

Optimal Learning with a Neural Network

Autor: T. L. H. Watkin

Publikováno v: Europhysics Letters (EPL). 21:871-876

We introduce optimal learning with a neural network, which we define as minimising the expectation generalisation error. We find that the optimally-trained spherical perceptron may learn a linearly-separable rule as well as any possible network. We s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::714d9dc660d84a8c041488be2a429a37
https://doi.org/10.1209/0295-5075/21/8/013

Learning unlearnable problems with perceptrons

Autor: Albrecht Rau, Timothy L. H. Watkin

Publikováno v: Physical Review A. 45:4102-4110

We study how well perceptrons learn to solve problems for which there is no perfect answer (the usual case), taking as examples a rule with a threshold, a rule in which the answer is not a monotonic function of the overlap between question and teache

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::454749ad061c950ff38cb8ede40c4952
https://doi.org/10.1103/physreva.45.4102

Selecting examples for perceptrons

Autor: A Rau, T L H Watkin

Publikováno v: Journal of Physics A: Mathematical and General. 25:113-121

A technique is introduced for analysing the learning process of perceptrons which continually select their own examples (the most efficient training algorithm yet devised). The authors predict a 42% reduction in the number of examples 'wasted' in tra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bbf8fb1b09c198c027be18a644626a36
https://doi.org/10.1088/0305-4470/25/1/016