Bio


Dong-han Yao, M.D., is a fellow in the Stanford University Clinical Informatics Fellowship Program. Dr. Yao holds a B.A. in Molecular & Cell Biology and Immunology from University of California, Berkeley, and an M.D. from Mount Sinai School of Medicine. He completed his Emergency Medicine Residency training at UCLA, where he was involved in multiple informatics-related initiatives and competitions.

Dr. Yao's clinical interests include critical care, cardiac emergencies, and leveraging technology to streamline workflow and improve patient outcomes in the emergency room. His past work informatics work includes creation of a novel patient discharge mechanism for a quaternary care academic hospital, development and implementation of new interdisciplinary clinical pathways for the emergency department, and using mobile devices to improve the efficiency and accessibility of medical documentation during the height of the COVID pandemic. His informatics interests include clinical throughput and operations optimization, EHR usability and experience, telemedicine, and healthcare integration of emerging machine learning and artificial intelligence applications to augment the provider/patient experience.

All Publications


  • Using a Large Language Model to Identify Adolescent Patient Portal Account Access by Guardians. JAMA network open Liang, A. S., Vedak, S., Dussaq, A., Yao, D. H., Morse, K., Ip, W., Pageler, N. M. 2024; 7 (6): e2418454

    View details for DOI 10.1001/jamanetworkopen.2024.18454

    View details for PubMedID 38916895

  • Therapeutic Anticoagulation with Heparin in Critically Ill Patients with Covid-19. The New England journal of medicine REMAP-CAP Investigators, ACTIV-4a Investigators, ATTACC Investigators, Goligher, E. C., Bradbury, C. A., McVerry, B. J., Lawler, P. R., Berger, J. S., Gong, M. N., Carrier, M., Reynolds, H. R., Kumar, A., Turgeon, A. F., Kornblith, L. Z., Kahn, S. R., Marshall, J. C., Kim, K. S., Houston, B. L., Derde, L. P., Cushman, M., Tritschler, T., Angus, D. C., Godoy, L. C., McQuilten, Z., Kirwan, B., Farkouh, M. E., Brooks, M. M., Lewis, R. J., Berry, L. R., Lorenzi, E., Gordon, A. C., Berry, S. M., McArthur, C. J., Neal, M. D., Hochman, J. S., Webb, S. A., Zarychanski, R., Ahuja, T., Al-Beidh, F., Annane, D., Arabi, Y. M., Aryal, D., Baumann Kreuziger, L., Beane, A., Bhimani, Z., Bihari, S., Billett, H. H., Bond, L., Bonten, M., Brunkhorst, F., Buxton, M., Buzgau, A., Castellucci, L. A., Chekuri, S., Chen, J., Cheng, A. C., Chkhikvadze, T., Coiffard, B., Contreras, A., Costantini, T. W., de Brouwer, S., Detry, M. A., Duggal, A., Dzavik, V., Effron, M. B., Eng, H. F., Escobedo, J., Estcourt, L. J., Everett, B. M., Fergusson, D. A., Fitzgerald, M., Fowler, R. A., Froess, J. D., Fu, Z., Galanaud, J. P., Galen, B. T., Gandotra, S., Girard, T. D., Goodman, A. L., Goossens, H., Green, C., Greenstein, Y. Y., Gross, P. L., Haniffa, R., Hegde, S. M., Hendrickson, C. M., Higgins, A. M., Hindenburg, A. A., Hope, A. A., Horowitz, J. M., Horvat, C. M., Huang, D. T., Hudock, K., Hunt, B. J., Husain, M., Hyzy, R. C., Jacobson, J. R., Jayakumar, D., Keller, N. M., Khan, A., Kim, Y., Kindzelski, A., King, A. J., Knudson, M. M., Kornblith, A. E., Kutcher, M. E., Laffan, M. A., Lamontagne, F., Le Gal, G., Leeper, C. M., Leifer, E. S., Lim, G., Gallego Lima, F., Linstrum, K., Litton, E., Lopez-Sendon, J., Lother, S. A., Marten, N., Saud Marinez, A., Martinez, M., Mateos Garcia, E., Mavromichalis, S., McAuley, D. F., McDonald, E. G., McGlothlin, A., McGuinness, S. P., Middeldorp, S., Montgomery, S. K., Mouncey, P. R., Murthy, S., Nair, G. B., Nair, R., Nichol, A. D., Nicolau, J. C., Nunez-Garcia, B., Park, J. J., Park, P. K., Parke, R. L., Parker, J. C., Parnia, S., Paul, J. D., Pompilio, M., Quigley, J. G., Rosenson, R. S., Rost, N. S., Rowan, K., Santos, F. O., Santos, M., Santos, M. O., Satterwhite, L., Saunders, C. T., Schreiber, J., Schutgens, R. E., Seymour, C. W., Siegal, D. M., Silva, D. G., Singhal, A. B., Slutsky, A. S., Solvason, D., Stanworth, S. J., Turner, A. M., van Bentum-Puijk, W., van de Veerdonk, F. L., van Diepen, S., Vazquez-Grande, G., Wahid, L., Wareham, V., Widmer, R. J., Wilson, J. G., Yuriditsky, E., Zhong, Y., Manax, V., Connor, J., Bion, J., Gates, S., Reynolds, J., van der Poll, T., Al-Beidh, F., Angus, D., Annane, D., Arabi, Y., Beane, A., van Bentum-Pujik, W., Berry, S., Bhimani, Z., Bonten, M., Bradbury, C., Brunkhorst, F., Buxton, M., Cheng, A., Derde, L., Estcourt, L., Goossens, H., Gordon, A., Green, C., Haniffa, R., Lamontagne, F., Lawler, P., Linstrum, K., Litton, E., Marshall, J., McArthur, C., McAuley, D., McGuinness, S., McVerry, B., Montgomery, S., Mouncey, P., Murthy, S., Nichol, A., Parke, R., Parker, J., Rowan, K., Santos, M., Seymour, C., Turgeon, A., Turner, A., van de Veerdonk, F., Webb, S., Zarychanski, R., Campbell, L., Forbes, A., Gattas, D., Heritier, S., Kruger, P., Peake, S., Presneill, J., Seppelt, I., Trapani, T., Young, P., Cuthbertson, B., Fowler, R., Manoharan, V., Aryal, D., Dondrop, A. M., Hashmi, M., Jayakumar, D., Tolppa, T., Singh, V., Brillinger, N., Cecconi, M., Ermann, S., Francois, B., Hullegie, S., Markgraff, R., Pletz, M., Povoa, P., Rohde, G., Parker, L., Scheepstra-Beukers, I., Alexander, B., Basile, K., Girard, T., Horvat, C., Huang, D., Mayr, F., Beasley, R., Daneman, N., Fowler, R., McGloughlin, S., Morpeth, S., Paterson, D., Venkatesh, A. N., de Jong, M., Uyeki, T., Baillie, K., Duffy, E., Hills, T., Orr, K., Patanwala, A., Tong, S., Cooper, N., Cremer, O., Galea, J., King, A., Leavis, H., Netea, M., Ogungbenro, K., Patawala, A., Pettila, V., Rademaker, E., Saxena, M., Sligl, W., Tong, S., Youngstein, T., Seymour, C. W., Aryal, D. A., Bihari, S., Carrier, M., Fergusson, D., Goligher, E., Hunt, B., Jayakumar, D., Kumar, A., Laffan, M., Lother, S., Middeldorp, S., McQuilten, Z., Neal, M., Schutgens, R., Stanworth, S., Adhikari, N., Anstey, M., Brant, E., de Man, A., Lamonagne, F., Masse, M., Udy, A., Arnold, D., Begin, P., Charlewood, R., Chasse, M., Coyne, M., Cooper, J., Daly, J., Gosbell, I., Harvala-Simmonds, H., Hills, T., MacLennan, S., Menon, D., McDyer, J., Pridee, N., Roberts, D., Shankar-Hari, M., Thomas, H., Tinmouth, A., Triulzi, D., Walsh, T., Wood, E., Calfee, C., O'Kane, C., Shyamsundar, M., Sinha, P., Thompson, T., Young, I., Haidar, G., Lawless, P., Weissman, A., Ferguson, N., Hodgson, C., Laffey, J., Orford, N., Neto, A., Baron, R., Epelman, S., Frankfurter, C., Gommans, F., Kim, E., Leaf, D., Vaduganathan, M., van Kimmenade, R., Detry, M., Fitzgerald, M., Lewis, R., McGlothlin, A., Sanil, A., Saunders, C., Berry, L., Lorenzi, E., Buzgau, A., Higgins, A., Parker, P., Zammit, C., Groeneveld, E., Peters, S., Okundaye, C., van Hout, D., Smit, A., Rikkert, L., Bari, S., Raymakers, K., Kwakkenbos-Craanen, M., Post, S., Schreuder, G., Markgraf, R., Ainscough, K., Brickell, K., Doran, P., Anjum, A., Lane, J., Fagbodun, E., Miller, L., Parry-Billings, K., Peters, S., Richards-Belle, A., Saull, M., Sprinckmoller, S., Wiley, D., Wunderley, R., van Beurden, M., Effelaar, E., Schotsman, J., Boyd, C., Harland, C., Shearer, A., Wren, J., Clermont, G., Garrard, W., Kalchthaler, K., Ricketts, D., Malakoutis, S., Marroquin, O., Music, E., Quinn, K., Attanayaka, U., Darshana, S., Ishani, P., Jawad, I., Pabasara, U., Udayanga, I., Gilmour, K., Pearson, K., Siewerski, C., Hurford, S., Marsh, E., Campbell, D., Williams, P., Shirley, K., Logan, M., Hanson, J., Dilley, B., Phillips, L., Oliver, A., Sutu, M., Murphy, S., Aravindan, L., Collins, J., Monaghan, H., Unsworth, A., Beddows, S., Dawson, L. A., Dyas, S., Asghar, A., Donaldson, K., Skinner, T., Mguni, N., Muzengi, N., Luo, J., O'Reilly, J., Levett, C., Potter, A., Porter, D., Lockett, T., Bartholomew, J., Rook, C., McKay, R., Williams, H., Hall, A., Campbell, H., Speight, H., Halden, S., Harrison, S., Naz, M., Lomme, K., Sharratt, P., Sheffield, J., Van't Hoff, W., Williamson, J. D., Barnard, A., Birch, C., Brend, M., Chambers, E., Crawshaw, S., Drake, C., Duckles-Leech, H., Graham, J., Harper, H., Lock, S., McMillan, N., O'Flaherty, C., OKell, E., Hayes, A., Sam, S., Slade, H., Walker, S., Wilding, K., Goodwin, J., Hodgson, H., Ellis, Y., Williamson, D., Bayne, M., Jackson, S., Byrne, R., McKenna, S., Clinton, A., McCracken, P., Young, M., Board, J., Martin, E., El-Khawas, K., Richardson, A., Hill, D., Commons, R. J., Abdelkharim, H., Knott, C., Smith, J., Boschert, C., Affleck, J., Apte, Y., Subbanna, U., Bartholdy, R., Frakking, T., Keat, K., Bhonagiri, D., Sanghavi, R., Nema, J., Ford, M., Parikh, H. G., Avard, B., Nourse, M., Cheung, W., Kol, M., Wong, H., Shah, A., Wagh, A., Simpson, J., Duke, G., Chan, P., Carter, B., Hunter, S., Laver, R. D., Shrestha, T., Jin, X., Regli, A., Pellicano, S., Palermo, A., Eroglu, E., French, C., Bates, S., Towns, M., Yang, Y., McGain, F., McCullough, J., Tallott, M., Kumar, N., Panwar, R., Brinkerhoff, G., Koppen, C., Cazzola, F., Brain, M., Mineall, S., Fischer, R., Biradar, V., Soar, N., White, H., Estensen, K., Morrison, L., Sutton, J., Cooper, M., Shehabi, Y., Al-Bassam, W., Hulley, A., Kadam, U., Sathianathan, K., Whitehead, C., Lowrey, J., Gresham, R., Masters, K., Walsham, J., Meyer, M. J., Harward, M., Venz, E., Brady, K., Vale, C., Shekar, K., Lavana, J., Parmar, D., Williams, P., Kurenda, C., Miles, H., Attokaran, A., Gluck, S., O'Connor, S., Chapman, M., Glasby, K., Smyth, K., Phillips, M., Barge, D., Byrne, K., Driscoll, A., Fortune, L., Janin, P., Yarad, E., Bass, F., Hammond, N., O'Connor, A., Waterson, S., McNamara, R., Buhr, H., Coles, J., Schweikert, S., Wibrow, B., Rauniyar, R., Deshpande, K., Konecny, P., Miller, J., Kintono, A., Tung, R., Fysh, E., Dawda, A., Mevavala, B., De Keulenaer, A. R., Litton, E., Ferrier, J., Nair, P., Buscher, H., Reynolds, C., Newman, S., Santamaria, J., Barbazza, L., Homes, J., Smith, R., Garrett, P., Murray, L., Brailsford, J., Forbes, L., Maguire, T., Fennessy, G., Mulder, J., Morgan, R., McEldrew, R., Naeem, A., Fagan, L., Ryan, E., Mariappa, V., Smith, J., Simpson, S., Maiden, M., Bone, A., Horton, M., Salerno, T., Sterba, M., Geng, W., Depuydt, P., De Waele, J., De Bus, L., Fierens, J., Bracke, S., Vermassen, J., Vermeiren, D., Reeve, B., Dechert, W., Lellouche, F., Lizotte, P., Chasse, M., Carrier, F. M., Boumahni, D., Benettaib, F., Ghamraoui, A., Bellemare, D., Cloutier, E., Daher, R., Costerousse, O., Boulanger, M., Couillard-Chenard, E., Lauzier, F., Francoeur, C., Lamontagne, F., D'Aragon, F., Carbonneau, E., Leblond, J., Vazquez-Grande, G., Marten, N., Liu, T., Siddiqui, A., Wilson, M., Albert, M., Serri, K., Cavayas, A., Duplaix, M., Williams, V., Rochwerg, B., Karachi, T., Oczkowski, S., Centofanti, J., Millen, T., Khwaja, K., Campisi, J., Duan, E., Tsang, J., Patterson, L., Sy, E., Gupta, C., Kassir, S. S., Kutsogiannis, D., Thompson, P., Kamra, M., Marinoff, N., Cook, D., Clarke, F., Kruisselbrink, R., Brochard, L., Burns, K., Sandhu, G., Khalid, I., English, S., Watpool, I., Porteous, R., Miezitis, S., McIntyre, L., Wilcox, E., Del Sorbo, L., Abdelhady, H., Romagnuolo, T., Baig, N., Rewa, O., Bagshaw, S., Binnie, A., Powell, E., McMillan, A., Luk, T., Aref, N., Pratheema, R., Babu, S., Vignesh, C., Kumar, B., Ramakrishnan, N., James, A., Elvira, E., Ebenezer, R., Krishnaoorthy, S., Ranganathan, L., Shree, M. M., Mani, A. K., Mathew, M., Revathi, R., Khanal, S., Amatya, S., Paneru, H. R., Koirala, S., Paudel, P., Koirala, K., Rai, N., Luitel, S., Bhattarai, B., Panjwani, A., Umrani, Z. A., Siddiq, S., Shaikh, M., Salahuddin, N., Masood, S., Andric, Z., Cviljevic, S., Dimoti, R., Zapalac, M., Gordan, G., Barsic, B., Kutlesa, M., Kotarski, V., Vujaklija Brajkovic, A., Babel, J., Sever, H., Dragija, L., Kusan, I., Vaara, S., Pettila, L., Heinonen, J., Kuitunen, A., Karlsson, S., Vahtera, A., Kiiski, H., Ristimaki, S., Azaiz, A., Charron, C., Godement, M., Geri, G., Vieillard-Baron, A., Pourcine, F., Monchi, M., Luis, D., Mercier, R., Sagnier, A., Verrier, N., Caplin, C., Richecoeu, J., Combaux, D., Siami, S., Aparicio, C., Vautier, S., Jeblaoui, A., Lemaire-Brunel, D., Fartoukh, M., Courtin, L., Labbe, V., Voiriot, G., Nesrine Salhi, S., Plantefeve, G., Leparco, C., Contou, D., Muller, G., Nay, M., Kamel, T., Benzekri, D., Jacquier, S., Runge, I., Mathonnet, A., Barbier, F., Bretagnol, A., Mercier, E., Chartier, D., Salmon, C., Dequin, P., Garot, D., Schneider, F., Castelain, V., Morel, G., L'Hotellier, S., Badie, J., Berdaguer, F. D., Malfroy, S., Mezher, C., Bourgoin, C., Moneger, G., Bouvier, E., Megarbane, B., Voicu, S., Deye, N., Malissin, I., Sutterlin, L., Mrad, A., Pepin Lehalleur, A., Naim, G., Nguyen, P., Ekherian, J., Boue, Y., Sideris, G., Vodovar, D., Guerin, E., Grant, C., Guitton, C., Darreau, C., Landais, M., Chudeau, N., Robert, A., Tirot, P., Callahan, J. C., Saint Martin, M., Le Moal, C., Marnai, R., Leroyer, M. H., Moine, P., Heming, N., Maxime, V., Bossard, I., Nicholier, T. B., Clair, B., Orlikowski, D., Bounab, R., Abdeladim, L., Colin, G., Zinzoni, V., Maquigneau, N., Henri-Lagarrigue, M., Pouplet, C., Soukup, J., Wetzold, R., Lobel, M., Ing, D., Starke, L., Grimm, P., Finn, A., KreSS, G., Hoff, U., Hinrichs, C. F., Nee, J., Pletz, M. W., Hagel, S., Ankert, J., Kolanos, S., Bloos, F., Nickoleit-Bitzenberger, D., Schaaf, B., Meermeier, W., Prebeg, K., Azzaui, H. S., Hower, M., Brieger, K., Elender, C., Sabelhaus, T., Riepe, A., Akamp, C., Kremling, J., Klein, D., Landsiedel-Mechenbier, E., Petros, S., Kunz, K., Schutze, B., Kluge, S., Nierhaus, A., Jarczak, D., Roedl, K., Gerhard, G., Rohde, U., Grunewaldt, A., Bojunga, J., Weismann, D., Frey, A., Drayss, M., Goebeler, M. E., Flor, T., Fragner, G., Wahl, N., Totzke, J., Sayehli, C., Reill, L., Distler, M., Maselli, A., Belteczki, J., Magyar, I., Fazekas, A., Kovacs, S., Szoke, V., Szigligeti, G., Leszkoven, J., Collins, D., Reid, L., Smyth, M., Breen, P., Spain, S., Curley, G., McEvoy, N., Geoghegan, P., Clarke, J., Laffeyirbre McNicholas, J., Scully, M., Casey, S., Kernan, M., Brennan, A., Rangan, R., Tully, R., Corbett, S., McCarthy, A., Duffy, O., Burke, D., Hayes, L., Murphy, L., Neill, A., Reidy, B., O'Dwyer, M., Ryan, D., Hoiting, O., Peters, M., Rengers, E., Evers, M., Prinssen, A., van den Oever, H. L., Kruisdijk-Gerritsen, A., Simons, K., van Zuylen, T., Bouman, A., van Gulik, L., Schouten, J., Pickkers, P., Roovers, N., Klop-Riehl, M., van der Eng, H., de Jonge, E., Wigbers, J., Del Prado, M., Mulier, J. H., Peters, A. L., Romberg, B., van Bree, S., Bouw-Ruiterrbara Festen, M., van Gelder, F., van Iperen, M., Osinga, M., Schellaars, R., Tjan, D., van der Wekken, R., Melchers, M., van Zanten, A., van Nieuwkoop, K., Ottens, T., Visser, Y., Juffermans, N., Koopmans, M., Guilder, E., Butler, M., Cowdrey, K., Woollett, M., Newby, L., Chen, Y., Simmonds, C., McConnochie, R., O'Connor, C., Ritzema Carter, J., Henderson, S., Van Der Heyden, K., Mehrtens, J., Morris, A., Morgan, S., Williams, T., Kazemi, A., Song, R., Lai, V., Girijadevi, D., Everitt, R., Russell, R., Hackin, D., Buehner, U., Williams, E., Browne, T., Grimwade, K., Goodson, J., Keet, O., Callender, O., Martynoga, R., Trask, K., Butler, A., Young, C., Lesona, E., Olatunji, S., MClinIm, M., Navarra, L., Sol Cruz, R., Perry, K., Fuchs, R., Lambert, B., Albrett, J., Jackson, C., Kirkham, S., Amaro Dos Santos Catorze, N. J., Lima Pereira, T. N., Castro Ferreira, R. M., Pereira Sousa Bastos, J. M., Oliveira Batista, T. M., Florescu, S. A., Stanciu, D., Zaharia, M. F., Kosa, A. G., Codreanu, D., Arabi, Y. M., Qasim, E. A., Tlayjeh, H., Alswaidan, L., Naidu, B., Munoz-Bermudez, R., Marin-Corral, J., Salazar Degracia, A., Parrilla Gomez, F., Mateo Lopez, M. I., Lopez, R. L., Rodriguez, J., Carcel, S., Carmona, R., de la Fuente, C., Rodriguez, M., Kaye, C., Allan, A., Summers, C., Polgarova, P., McWilliam, S. J., Hawcutt, D. B., Rad, L., O'Malley, L., Whitbread, J., Kelsall, O., Cowley, N., Wild, L., Thrush, J., Wood, H., Austin, K., Donnelly, A., Kelly, M., Smyth, N., O'Kane, S., McClintock, D., Warnock, M., Campbell, R., McCallion, E., Johnson, P., McKenna, S., Hanley, J., Currierbara Allen, A., McGoldrick, C., McMaster, M., Jha, R., Kalogirou, M., Ellis, C., Krishnamurthy, V., Deelchand, V., O'Connor, A., Silversides, J., McGuigan, P., Ward, K., O'Neill, A., Finn, S., Phillips, B., Ortiz-Ruiz de Gordoa, L., Bewley, J., Thomas, M., Sweet, K., Grimmer, L., Johnson, R., Pinnell, J., Robinson, M., Gledhill, L., Wood, T., Morgan, M., Cole, J., Hill, H., Davies, M., Angharad, A., Williams, W., Thomas, E., Davies, R., Wise, M., Antcliffe, D., Templeton, M., Rojo, R., Coghlan, P., Smee, J., Mackay, E., Cort, J., Whileman, A., Spencer, T., Spittle, N., Beavis, S., Padmakumar, A., Dale, K., Hawes, J., Moakes, E., Gascoyne, R., Pritchard, K., Stevenson, L., Cooke, J., Nemeth-Roszpopa, K., Kasipandian, V., Patel, A., Allibone, S., Mary-Genetu, R., Ramali, M., Ghosh, A., Osagie, R., Jayasinghe Arachchige, M., Hartley, M., Bamford, P., London, E., Cawley, K., Faulkner, M., Jeffrey, H., Sundar Raj, A., Tsinaslanidis, G., Nair Khade, R., Nwajei Agha, G., Nalumansi Sekiwala, R., Smith, T., Brewer, C., Gregory, J., Limb, J., Cowton, A., O'Brien, J., Postlethwaite, K., Nikitas, N., Wells, C., Lankester, L., McMillan, H., Pulletz, M., Birch, J., Wiseman, S., Horton, S., Alegria, A., Turki, S., Elsefi, T., Crisp, N., Allen, L., Smith, M., Chukkambotla, S., Goddard, W., Duberley, S., McCullagh, I. J., Robinson, P., Patel, B., Kelly, S., Touma, O., Holland, S., Hodge, C., Taylor, H., Alderman, M., Barnes, N., Da Rocha, J., Smith, C., Brooks, N., Weerasinghe, T., Sinclair, J., Abusamra, Y., Doherty, R., Cudlipp, J., Singh, R., Yu, H., Daebis, A., Ng, C., Kendrick, S., Saran, A., Makky, A., Greener, D., Rowe-Leete, L., Edwards, A., Bland, Y., Dolman, R., Foster, T., Linnett, V., Sanderson, A., Ritzema, J., Wild, H., Khare, D., Pinder, M., Selvamoni, S., Gopinath, A., Pugh, R., Menzies, D., Lean, R., Qiu, X., Scanlon, J. J., Puxty, K., Cathcart, S., Govern, C. M., Carmichael, S., Rimmer, D., Yusuff, H., Isgro, G., Brightling, C., Bourne, M., Craner, M., Boyles, R., Szakmany, T., Cherian, S., Williams, G., James, C., Waters, A., Watters, M., Prout, R., Davies, L., Pegler, S., Kyeremeh, L., Mian, A., Ostermann, M., Marotti, M., Novellas, N. G., Bociek, A., Brett, S., Sousa Arias, S., Hall, R. E., Jain, S., Gupta, A., Holbrook, C., Henning, J., Bonner, S., Hugill, K., Cirstea, E., Wilkinson, D., Jones, J., Karlikowski, M., Sutherland, H., Wilhelmsen, E., Woods, J., North, J., Sundaran, D., Hollos, L., Coburn, S., Williams, A., Saunders, S., Hopkins, P., Smith, J., Noble, H., Depante, M. T., Clarey, E., Laha, S., Verlander, M., Williams, A., Paramasivam, E., Wilby, E., Ogg, B., Howcroft, C., Aspinwall, A., Charlton, S., Gould, R., Mistry, D., Awan, S., Bedford, C., Hall, A., Cooke, J., Gardiner-Hill, C., Maloney, C., Brunskill, N., QureshiI, H. R., Flint, N., Nicholson, S., Southin, S., Nicholson, A., Ghattaoraya, A., Harding, D., O'Halloran, S., Collins, A., Smith, E., Trues, E., Borgatta, B., Turner-Bone, I., Reddy, A., Wilding, L., Wilson, C., Surti, Z., Chamara Warnapura, L., Agno, R., Sathianathan, P., Shaw, D., Ijaz, N., Burns, D., Nisar, M., Quick, V., Alexander, C., Patel, S., Hussain, N., Croucher, Y., Langnu Rudran, E., Gilani, S., Wieder, T., Tate, M. L., Golden, D., Davey, M., Seaman, R., Felton, T., Bannard-Smith, J., Henry, J., Clark, R., Birchall, K., Pomeroy, F., Quayle, R., Wylie, K., Sukuraman, A., McNamarra, J., Makowski, A., Misztal, B., Ahmed, I., Neicker, K., Millington, S., Squires, R., Phulpoto, M., Stewart, R., Mwaura, E., Mew, L. E., Wren, L., Willams, F., Oborska, A., Maeda, R., Kalchko-Veyssal, S., Prabakaran, R. O., Hadebe, B., Makmur, E., Nicholls, G., Innes, R., Doble, P., Graham, L., Shovelton, C., Hamlyn, V., Hawkins, N., Roynon-Reed, A., Cutler, S., Lewis, S., Lazaro, J. M., Newman, T., Austin, P., Chapman, S., Cabrelli, L., Fletcher, S., Nortje, J., Fottrell-Gould, D., Randell, G., Stammers, K., Zaman, M., Elmahi, E., Jones, A., Hall, K., Mills, G. 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    Abstract

    BACKGROUND: Thrombosis and inflammation may contribute to morbidity and mortality among patients with coronavirus disease 2019 (Covid-19). We hypothesized that therapeutic-dose anticoagulation would improve outcomes in critically ill patients with Covid-19.METHODS: In an open-label, adaptive, multiplatform, randomized clinical trial, critically ill patients with severe Covid-19 were randomly assigned to a pragmatically defined regimen of either therapeutic-dose anticoagulation with heparin or pharmacologic thromboprophylaxis in accordance with local usual care. The primary outcome was organ support-free days, evaluated on an ordinal scale that combined in-hospital death (assigned a value of -1) and the number of days free of cardiovascular or respiratory organ support up to day 21 among patients who survived to hospital discharge.RESULTS: The trial was stopped when the prespecified criterion for futility was met for therapeutic-dose anticoagulation. Data on the primary outcome were available for 1098 patients (534 assigned to therapeutic-dose anticoagulation and 564 assigned to usual-care thromboprophylaxis). The median value for organ support-free days was 1 (interquartile range, -1 to 16) among the patients assigned to therapeutic-dose anticoagulation and was 4 (interquartile range, -1 to 16) among the patients assigned to usual-care thromboprophylaxis (adjusted proportional odds ratio, 0.83; 95% credible interval, 0.67 to 1.03; posterior probability of futility [defined as an odds ratio <1.2], 99.9%). The percentage of patients who survived to hospital discharge was similar in the two groups (62.7% and 64.5%, respectively; adjusted odds ratio, 0.84; 95% credible interval, 0.64 to 1.11). Major bleeding occurred in 3.8% of the patients assigned to therapeutic-dose anticoagulation and in 2.3% of those assigned to usual-care pharmacologic thromboprophylaxis.CONCLUSIONS: In critically ill patients with Covid-19, an initial strategy of therapeutic-dose anticoagulation with heparin did not result in a greater probability of survival to hospital discharge or a greater number of days free of cardiovascular or respiratory organ support than did usual-care pharmacologic thromboprophylaxis. (REMAP-CAP, ACTIV-4a, and ATTACC ClinicalTrials.gov numbers, NCT02735707, NCT04505774, NCT04359277, and NCT04372589.).

    View details for DOI 10.1056/NEJMoa2103417

    View details for PubMedID 34351722

  • Therapeutic Anticoagulation with Heparin in Noncritically Ill Patients with Covid-19. The New England journal of medicine ATTACC Investigators, ACTIV-4a Investigators, REMAP-CAP Investigators, Lawler, P. R., Goligher, E. C., Berger, J. S., Neal, M. D., McVerry, B. J., Nicolau, J. C., Gong, M. N., Carrier, M., Rosenson, R. S., Reynolds, H. R., Turgeon, A. F., Escobedo, J., Huang, D. T., Bradbury, C. A., Houston, B. L., Kornblith, L. Z., Kumar, A., Kahn, S. R., Cushman, M., McQuilten, Z., Slutsky, A. S., Kim, K. S., Gordon, A. C., Kirwan, B., Brooks, M. M., Higgins, A. M., Lewis, R. J., Lorenzi, E., Berry, S. M., Berry, L. R., Angus, D. C., McArthur, C. J., Webb, S. A., Farkouh, M. E., Hochman, J. S., Zarychanski, R., Aday, A. W., Al-Beidh, F., Annane, D., Arabi, Y. M., Aryal, D., Baumann Kreuziger, L., Beane, A., Bhimani, Z., Bihari, S., Billett, H. H., Bond, L., Bonten, M., Brunkhorst, F., Buxton, M., Buzgau, A., Castellucci, L. A., Chekuri, S., Chen, J., Cheng, A. 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    Abstract

    BACKGROUND: Thrombosis and inflammation may contribute to the risk of death and complications among patients with coronavirus disease 2019 (Covid-19). We hypothesized that therapeutic-dose anticoagulation may improve outcomes in noncritically ill patients who are hospitalized with Covid-19.METHODS: In this open-label, adaptive, multiplatform, controlled trial, we randomly assigned patients who were hospitalized with Covid-19 and who were not critically ill (which was defined as an absence of critical care-level organ support at enrollment) to receive pragmatically defined regimens of either therapeutic-dose anticoagulation with heparin or usual-care pharmacologic thromboprophylaxis. The primary outcome was organ support-free days, evaluated on an ordinal scale that combined in-hospital death (assigned a value of -1) and the number of days free of cardiovascular or respiratory organ support up to day 21 among patients who survived to hospital discharge. This outcome was evaluated with the use of a Bayesian statistical model for all patients and according to the baseline d-dimer level.RESULTS: The trial was stopped when prespecified criteria for the superiority of therapeutic-dose anticoagulation were met. Among 2219 patients in the final analysis, the probability that therapeutic-dose anticoagulation increased organ support-free days as compared with usual-care thromboprophylaxis was 98.6% (adjusted odds ratio, 1.27; 95% credible interval, 1.03 to 1.58). The adjusted absolute between-group difference in survival until hospital discharge without organ support favoring therapeutic-dose anticoagulation was 4.0 percentage points (95% credible interval, 0.5 to 7.2). The final probability of the superiority of therapeutic-dose anticoagulation over usual-care thromboprophylaxis was 97.3% in the high d-dimer cohort, 92.9% in the low d-dimer cohort, and 97.3% in the unknown d-dimer cohort. Major bleeding occurred in 1.9% of the patients receiving therapeutic-dose anticoagulation and in 0.9% of those receiving thromboprophylaxis.CONCLUSIONS: In noncritically ill patients with Covid-19, an initial strategy of therapeutic-dose anticoagulation with heparin increased the probability of survival to hospital discharge with reduced use of cardiovascular or respiratory organ support as compared with usual-care thromboprophylaxis. (ATTACC, ACTIV-4a, and REMAP-CAP ClinicalTrials.gov numbers, NCT04372589, NCT04505774, NCT02735707, and NCT04359277.).

    View details for DOI 10.1056/NEJMoa2105911

    View details for PubMedID 34351721

  • The Outcome of Patients With Localized Undifferentiated Pleomorphic Sarcoma of the Lower Extremity Treated at Stanford University AMERICAN JOURNAL OF CLINICAL ONCOLOGY-CANCER CLINICAL TRIALS Kamat, N. V., Million, L., Yao, D., Donaldson, S. S., Mohler, D. G., van de Rijn, M., Avedian, R. S., Kapp, D. S., Ganjoo, K. N. 2019; 42 (2): 166–71
  • The Outcome of Patients With Localized Undifferentiated Pleomorphic Sarcoma of the Lower Extremity Treated at Stanford University. American journal of clinical oncology Kamat, N. V., Million, L., Yao, D., Donaldson, S. S., Mohler, D. G., van de Rijn, M., Avedian, R. S., Kapp, D. S., Ganjoo, K. N. 2018

    Abstract

    BACKGROUND: As a diagnosis of exclusion, Undifferentiated Pleomorphic Sarcoma (UPS) has unclear clinical characteristics. The objective of this retrospective cohort study is to investigate which clinical and prognostic factors of primary lower-extremity UPS will determine failure.METHODS: We retrospectively reviewed 55 primary lower-extremity UPS cases treated at Stanford between 1998 and 2015. Overall Survival (OS) and Disease-Free Survival (DFS) curves were calculated. Univariate Fisher's Exact Tests were used to examine relationships between disease recurrence, treatment, patient factors, tumor characteristics, and surgical margins.RESULTS: 5-year DFS and OS rates were 60% (95% CI, 45%-72%) and 68% (95% CI, 53%-79%), respectively. The 5-year DFS rate for patients with positive margins was 33.3% (95% CI, 5%-68%) compared with 63% (95% CI, 47%-76%) for patients with negative margins. (Log-rank, P=0.03). The OS rate for those with disease recurrence was 42% % (95% CI, 16%-67%) compared with 76% (95% CI, 59%-87%) for patients who did not have disease recurrence (log-rank, P=0.021). Local failure occurred more frequently with omission of radiation therapy (Fisher's exact test, P=0.009).CONCLUSIONS: Positive surgical margins are an important prognostic factor for predicting relapse in UPS. Relapse of any kind led to worse OS. Radiation therapy improved local control of disease but had no statistically significant effect on DFS, highlighting the need for improved diagnostics to identify those at highest risk for hematogenous metastasis and for selection of patients for adjuvant systemic treatment.

    View details for PubMedID 30557163