8 results on '"Gellad, Z"'
Search Results
2. Effects of once-weekly exenatide on cardiovascular outcomes in type 2 diabetes
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Holman, Rr, Bethel, Ma, Mentz, Rj, Thompson, Vp, Lokhnygina, Y, Buse, Jb, Chan, Jc, Choi, J, Gustavson, Sm, Iqbal, N, Maggioni, Ap, Marso, Sp, Öhman, P, Pagidipati, Nj, Poulter, N, Ramachandran, A, Zinman, B, Hernandez, Af, EXSCEL Study Group, : Califf RM, Patel, R, George, J, Sourij, H, Wong, Yw, Hannan, K, Sellers, Ma, Gottlieb, P, Lavender, P, Leloudis, D, Meadows, Y, Larson, D, Anderson, H, Elkins, M, Stone, A, Tisch, A, Perkins, L, Sanders, K, Campbell, C, Kennedy, I, Heal, P, Masterson, M, Darbyshire, J, Mumtaz, L, Athwal, R, Ferch, A, Batra, P, Durborow, L, Vincent, J, Woodall, A, Flanagan, T, Katona, B, Reicher, B, Pozzi, E, Oulhaj, A, Coleman, R, Rouleau, Jl, Pocock, Sj, Gorelick, F, Mcmurray, J, Riddle, M, Gagel, R, Collier, T, Markovic, T, Kong, Aps, Hian, Sk, Scott, R, Panelo, A, Yoon, Kh, Sheu, W, Sritara, P, Linong, J, Pan, C, Yong, H, Schernthaner, G, Mathieu, C, Tankova, T, Widimsky, P, Hanefeld, M, Keltai, M, Wainstein, J, del Prato, S, Pirags, V, Jakuboniene, N, Kooy, A, Dziemidok, P, Veresiu, Ia, Dreval, Av, Murin, J, Torello, Al, Sattar, N, Parkhomenko, O, Omar, M, Diaz, R, Lopes, R, Lanas, F, Urina Triana, M, Leiva-Pons, Jl, Aguliera, D, Bergenstal, R, Goodman, S, Yale, Jf, Caterson, I, Weng, J, Hu, D, Junbo, G, Zannad, F, Anoop, M, Ambrish, M, Gallegos, Ja, Green, Jb, Akerblom, A, Alexander, K, Al-Khatib, S, Armaganijan, L, Barros, P, Batit, M, Bernacki, G, Bernandez, S, Bloomfield, G, Clausen, E, De Souza Brito, F, Devore, A, Dombrowski, K, Eapen, Z, Gellad, Z, George, D, Guimaraes, P, Halim, S, Harrison, R, Hawes, J, Hess, C, Hyland, K, Jackson, L, Jones, S, Jordan, D, Katz, M, Kong, D, Koshizaka, M, Lakey, W, Leblanc, T, Leonardi, S, Luo, N, Mahaffey, K, Mandawat, A, Mehta, R, Melloni, C, Morse, M, Pagidpati, N, Patel, C, Patel, K, Pokorney, S, Posvic, T, Rao, M, Roe, M, Shah, B, Tillmann, H, Truffa, A, Zazula, A, Zeitler, E, Sicer, M, Ulla, Mr, Maffei, L, Klyver, Mi, Calella, P, Alvarisqueta, A, De La Fuente RL, Aizenberg, D, Roque, F, Cruciani, A, Frechtel, G, Gelersztein, E, Villarino, A, Mallagray, M, Nardone, L, Zaidman, C, Novaretto, L, Bartolacci, I, de Salvo, M, Delcourt, C, Crimmins, D, Jackson, R, O’Neal, D, Colman, P, Jeffries, W, Mah, Pm, Wittert, G, Proietto, J, Amerena, J, Marks, S, Tan, R, Colquhoun, D, Pieber, T, Drexel, H, Prager, R, Schnack, C, Hoppichler, F, Fasching, P, Francesconi, C, Luger, A, Schoenherr, Hr, Ebenbichler, C, Paulweber, B, Shernthaner, G, Verhaegen, A, Vanuytsel, J, Thissen, Jp, e Silva P, Barros, Gonzaga, C, Borges, J, Hissa, M, Rea, R, Rossi, P, Chacra, A, Eliaschewitz, F, Garbelini, B, Felicio, J, Rassi, N, Rossi, F, Nunes dos Santos, M, e Farias F, Bandeira, Lisboa, H, e Forti A, Costa, Saraiva, Jk, Kovacheva, S, Levterov, G, Sheinkova, G, Ilieva, E, Lyubenova, L, Damyanova, V, Gushterova, V, Mincheva, L, Illiev, D, Ivanov, V, Bobeva, R, Nikitov, Z, Shumkova, R, Lefterov, In, Zaharieva, S, Videva, V, Yakov, A, Cheung, S, Elliott, T, Mehta, P, Ross, S, Sigal, R, Woo, V, Jaffer, S, Kuritsky, R, Bell, A, Dumas, R, Gosselin, G, Robitaille, Y, Greenspoon, A, Lochnan, H, Tytus, R, Leiter, L, Pandey, A, Punthakee, Z, Dube, F, Sigalas, J, Pearce, M, Woodford, T, Paul, P, Bourgeois, R, Conway, R, Mazza, G, Hatheway, R, Misterski, J, Raffo, C, Olivares, C, Godoy, J, Potthoff, S, Santibañez, C, Larenas Yanez GJ, Gu, W, Shen, F, Ma, J, Guo, X, Li, Q, Du, Y, Hu, J, Ji, L, Li, Y, Deng, H, Feng, Y, Liu, L, Mu, Y, Ma, C, Qu, S, Wang, J, Wang, Y, Yuan, Z, Zhang, L, Zhou, S, Yang, T, Dong, Y, Liu, D, Coronel Arroyo, J, Perez Amador, G, Botero Lopes, R, Jaramilo, C, Orozco Linares, A, Cure Cure CA, Hernandez Triana, E, Molina de Salazar DI, Marin, Cr, Jaramilo Gomez CJ, Kellinerova, I, Adamkova, V, Krami, P, Brychta, T, Havelkova, J, Pantikova, K, Schoper, F, Pohl, W, Schumm-Draeger, Pm, Julius, U, Tschöpe, D, Hamann, A, Seissler, J, Schellong, S, Rose, L, Becker, B, Linn, T, Oerter, Em, Strotmann, Hj, Mölle, A, Pfutzner, A, Forst, T, Schäufele, T, Mugge, A, Lehrke, M, Meyer-Pannwitt, U, Mehling, H, Simon-Wagner, I, Schenkenberger, I, Busch, K, Hermes, S, Milek, K, Landers, B, Grueneberg, M, Braun, M, Nothroff, J, Kamke, W, Hergdt, G, Duengen, Hd, Kleinertz, K, Kuesters, D, Boenninghoff, Ah, Appel, Kf, Schaefer, A, Bieler, T, Ozaki, R, Luk, Aoy, Chu, Dw, Cheung-Wong, Mm, Siu, Dc, Yan, Bpy, Kung, K, Wong, Sys, Tsang, Cc, Yeung, Vt, Cheung, Bm, Tse, Hf, Hodi, G, Nagy, K, Lippai, J, Takacs, J, Fulop, T, Gaal, Z, Pauker, Z, Foldesi, I, Simon, J, Oroszan, T, Futo, L, Bezzegh, K, Nagy, A, Vandorfi, G, Kiss, J, Kesmarki, N, Kis, E, Papp, A, Kovacs, A, Szakal, I, Palinkas, A, Czegany, Z, Voros, P, Reiber, I, Kerenyi, Z, Dezso, E, Wittman, I, Penzes, J, Ples, Z, Taller, A, Farago, K, Kis, Jt, Zilahi, Z, Molnar, M, Barkai, L, Mileder, M, Szentpeteri, I, Peterfai, E, Lovasz, O, Mosenzon, O, Minuchin, O, Jaffe, A, Vishlitsky, V, Shimon, I, Bashkin, A, Stern, N, Elias, N, Bental, T, Butnaru, A, Lewis, B, Adawi, F, Nseir, W, Klainman, E, Herskovits, T, Cignarelli, M, Rotella, Cm, Ambrosio, G, Pozzilli, P, Genovese, S, Cavarape, A, Salvioni, A, Sokolova, J, Strautina, I, Teterovska, D, Stalte, V, Pastare, S, Leitane, I, Lagzdina, L, Andersone, I, Eglite, R, Stelmane, I, Levinger, A, Barsiene, L, Sulskiene, M, Varanauskiene, E, Danyte, E, Urbanaviciene, E, Urbanavicius, V, Zabuliene, L, Juskiene, R, Velaviciene, A, Kakariekiene, V, Augusteniene, A, Velickiene, D, Lasiene, J, Dauksiene, D, Caponis, J, Tan, At, Ramanathan, L, Hassan, Mra, Tan, F, Ong, Tk, Foo, Sh, Ghani, Ra, Cheah, Wk, Sanchez Mijangos JH, Cabrera Jardines, R, Barrientos Perez, M, Sauque Reyna, L, Alcocer Gamba MA, Villeda Espinosa, E, Tamez Perez HE, De La Garza Hernandez NE, Lopes, Sm, Ramirez Diaz SP, Reyes Sanchez, R, Márquez-Rodriguez, E, Köse, V, Voors-Pette, C, Oldenburg-Ligtenberg, Pc, van Kempen WW, Cox, K, Hoogendyk, J, Swinkels-Diepenmaat, L, Rojas-Lingan, G, Kentgens, S, Schipperen, S, de Valk HW, Swart, H, van Bemmel, B, Hoogslag, Pam, Diamant, M, Serné, Eh, Hamer, A, Wilson, S, Fisher, N, Dixon, P, Chaudhri, O, Crawford, V, Quinn, D, Nirmalaraj, K, Dunn, P, Gillies, J, Cutfield, R, Krebs, J, Helm, C, Kerr, J, Pryke, J, Ebo, G, Denopol, M, Ang, E, Uy, N, Jimeno, C, Mirasoi, R, Paz Pacheco, E, Custodio, M, Nicodemus, N Jr, Catindig, Ea, Magno, M, Tirador, L, Cylkowska, B, Stasinksa, T, Silwinska, T, Sroka, M, Piepiorka, M, Korzeniak, R, Mirecka, H, Zaluska, R, Pupek-Musialik, D, Homenda, W, Grabowska, A, Okopien, B, Niegowska, J, Pogorzelska, H, Mikolajczyk-Swatko, A, Sikorski, M, Sowinski, D, Tahk, Sj, Kim, Yn, Nam, Cw, Rim, Sj, Kim, Cj, Choi, Km, Lee, Ik, Kim, Ij, Namgung, J, Moon, Kw, Kim, Ks, Oh, Bh, Lee, Wy, Choi, Sh, Kim, Es, Moon, S, Mindrescu, Nm, Aron, G, Graur, M, Hancu, N, Mlitaru, C, Nafornita, V, Szilagyi, I, Popa, Ar, Angelescu, Lm, Negrisanu, Gd, Zaharie, Dg, Culman, Mi, Vacaru, G, Munteanu, M, Constantinescu, S, Tivadar, S, Dreval, A, Barbarash, O, Strongin, L, Dogadin, S, Suplotova, L, Izmozherova, N, Marasaev, V, Khokhlov, A, Repin, A, Turova, E, Bondar, I, Samoylova, Y, Sherenkov, A, Smolenskaya, O, Zrahevskiy, K, Koshelskaya, O, Obrezan, A, Dzupina, A, Stevlik, J, Buganova, I, Pella, D, Vinanska, D, Jascur, J, Micko, K, Sosovec, D, Philippiova, A, Olexa, P, Fedacko, J, Selecky, J, Nicolau, J, Mediavilla Garcia, J, Botella Serrano, M, Lecube, A, Arguelles, I, Sabán, J, Gómez Cerezo, F, Soto, A, Bellido, D, Sucunza Alfonso, N, Vendrell Ortega, J, Alvarez, L, Garcia Puig, J, Angustias Quesada, M, Contreras Gilbert, J, Almeida, Ca, Tinahones, Fj, Garcia Ortiz, L, Gómez Marcos MA, Aomar, I, Fernández Balsells, M, Distiller, L, Padayachee, T, Badat, A, Ebrahim, I, Naiker, P, Ranjith, N, Kelfkens, Y, Makan, H, Mogashoa, S, Fulat, M, Carim-Ganey, N, Coetzee, K, Govender, T, Nortje, H, Wilhase, A, Seedat, S, Gani, M, Ellis, G, Rheeder, P, Wing, J, Blignaut, S, Kaplan, H, Lottering, H, Pillai, P, Louw, C, Coetzer, T, Sheu, Whh, Chen, Jf, Yang, Cy, Tseng, St, Wang, Cy, Lai, Wt, Hung, Yj, Hsieh, Ic, Su, Sl, Pei, D, Benjasuratwong, Y, Purewal, T, Milward, A, Dimitropoulos, I, Kumar, S, Barber, T, Wiles, P, Dang, C, Adler, A, Philip, S, Bellary, S, Price, D, Oelbaum, R, Heller, S, Sathayapalan, T, Clark, J, Leese, G, Simpson, H, Kilvert, A, Dawson, A, Hall, T, Takhar, A, Bundy, C, Harvey, P, Maxwell, S, Asamoah-Owusu, Nj, Mcknight, J, Chatterjee, S, Calvert, J, Wright, A, Macrury, S, Macfarlane, D, Johnson, A, Litchfield, J, Field, B, Koval, O, Larin, O, Levchenko, O, Martynyuk, L, Maslyanko, V, Rudyk, I, Suprun, Y, Tseluyko, V, Botsyurko, V, Vatutin, M, Fushtey, I, Grishyna, O, Kuskalo, P, Panina, S, Pererva, L, Prysupa, L, Teliatnikova, Z, Sokolova, L, Vlasenko, M, Berenfus, V, Gyrina, O, Kopytsya, M, Vizir, V, Vayda, M, Shanik, M, Headapohl, D, Pahl, J, Aronoff, S, Bartkowiak, A Jr, Chang, A, Gaudiani, L, Kayne, D, Look, M, Patel, N, Moran, J, Stout, E, Tsao, J, Struble, R, Fishman, N, Rodbard, H, Lucas, K, Dugano-Daphnis, P, Merrick, B, Nadar, V, Severa, L, Sorli, C, Chang, M, Reed, J III, Grunberger, G, Bain, C, Bestermann, W Jr, Morawski, E, White, J, Azizad, M, Ukwade, P, Anekwe, A, Jimenez, A, Weiss, D, Green, S, Overcash, J, Eaton, C, Roseman, H, Soler, N, Mikell, F, Manos, P, Levinson, L, Claxton, E Jr, Weiss, R, Argoud, G, Bickel, L, Wilson, J, Short, B, Webster, B, Mcneill, R, Schnall, A, Force, R, Phillips, L, Bybee, K, Forker, A, Denham, D, Vonderhaar, T, Pullman, J, Kruger, D, Whitehouse, F, Wysham, C, Baron, M, Kravitz, A, Dushkin, H, Manning, Mb, Wine, A, Jaffrani, N, Chadha, C, Sperl-Hillen, J, Busch, R, Estevez, R, Robbins, D, Rassouli, N, Garvey, T, Oparil, S, Eckel, R, Mcdermott, M, Rasouli, N, Mcgill, J, Corder, C, Klonoff, D, Mills, R, Earl, J, Kessel, J, Cuddihy, R, Zimmerman, R, Dayamani, P, Oral, E, Zimering, M, Marks, J, Farnsworth, K, Sugimoto, D, Toth, P, Bhargava, A, Mcguire, D, Rohatgi, A, Davies, M, Peden, E, Wyne, K, Alfonso, L, Seyoum, B, Akpunonu, B, Feinglos, M, Reaven, P, Soule, J, Luttrell, L, Schactman, B, Canadas, R, Boggs, B, Abbott, L, Herring, C, Roberts, L, Hage-Korban, E, Schubart, U, Taylon, A, Tannenbaum, A, Kingsley, J, Lenhard, J, Biscoveanu, M, Cohen, J, Donovan, D, Laferrere, B, Thompson, N, Wade, T, Detweiler, R, Henson, B, White, A, Cavale, A, Ravi, C, Thomas, A, Goodman, H, Kalen, V, Fox, D, Dauber, I, Rizvi, S, Marcus, A, Mulford, M, Higgins, A, Chane, M, Bland, V, Osunkoya, A, Suresh, D, Khan, S, Anastasi, L, Bajaj, M, Eisen, H, Mudaliar, Sr, Powell, S, Carr, K, Tripathy, D, Azad, N, Wakefield, P, Acheatel, R, Bressler, P, Dean, J, El Shahawy, M, Gilbert, J, Haque, I, Humiston, D, Ison, R, Karounos, D, Lillestol, M, Ferrier, N, Labroo, A, Vo, A, D’Agostino, R, Dulin, M, Mcwilliams, A, Hargrove, J, Blumberg, E, Jackson, B, Staniloae, C, Salacata, A, Hidalgo, H Jr, Nicol, P, Digiovanna, M, Soufer, J, Mahabadi, V, Akinboboye, O, Arauz-Pacheco, C, Neutel, J, Dungan, K, Benson, M, Powell, T, Gandy, W, Rovner, S, Berk, M, Khan, A, Ledesma, G, Madu, I, Erickson, B, Radbill, M, Graves, M, Kaczmarek, G, Giep, S, Baldauf, C, Golden, G, Lesh, K, Davis, C, Godbole, N, Kirby, W, Razzaque, N, Bhatt, B, Wilson, M., Internal medicine, ACS - Diabetes & metabolism, and ACS - Microcirculation
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Male ,medicine.medical_specialty ,EXSCEL Study Group ,Injections, Subcutaneous ,030209 endocrinology & metabolism ,Type 2 diabetes ,Kaplan-Meier Estimate ,030204 cardiovascular system & hematology ,Placebo ,Article ,Drug Administration Schedule ,GLP1-agonists ,03 medical and health sciences ,0302 clinical medicine ,Double-Blind Method ,Interquartile range ,Internal medicine ,Diabetes mellitus ,General & Internal Medicine ,medicine ,Humans ,Hypoglycemic Agents ,Least-Squares Analysis ,Aged ,Glycated Hemoglobin ,business.industry ,Venoms ,Semaglutide ,Incidence ,Type 2 diabetes, GLP1-agonists, exenatide, cardiovascular effects ,General Medicine ,11 Medical And Health Sciences ,Middle Aged ,medicine.disease ,Surgery ,Albiglutide ,Editorial ,Diabetes Mellitus, Type 2 ,Cardiovascular Diseases ,Exenatide ,Dulaglutide ,Female ,business ,Peptides ,cardiovascular effects ,medicine.drug - Abstract
BACKGROUND: The cardiovascular effects of adding once-weekly treatment with exenatide to usual care in patients with type 2 diabetes are unknown. METHODS: We randomly assigned patients with type 2 diabetes, with or without previous cardiovascular disease, to receive subcutaneous injections of extended-release exenatide at a dose of 2 mg or matching placebo once weekly. The primary composite outcome was the first occurrence of death from cardiovascular causes, nonfatal myocardial infarction, or nonfatal stroke. The coprimary hypotheses were that exenatide, administered once weekly, would be noninferior to placebo with respect to safety and superior to placebo with respect to efficacy. RESULTS: In all, 14,752 patients (of whom 10,782 [73.1%] had previous cardiovascular disease) were followed for a median of 3.2 years (interquartile range, 2.2 to 4.4). A primary composite outcome event occurred in 839 of 7356 patients (11.4%; 3.7 events per 100 person-years) in the exenatide group and in 905 of 7396 patients (12.2%; 4.0 events per 100 person-years) in the placebo group (hazard ratio, 0.91; 95% confidence interval [CI], 0.83 to 1.00), with the intention-to-treat analysis indicating that exenatide, administered once weekly, was noninferior to placebo with respect to safety (P
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- 2017
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3. Bilateral vocal cord paralysis following stent placement for proximal esophageal stricture
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Gellad, Z., primary, Hampton, D., additional, Tebbit, C., additional, Puscas, L., additional, and Pavey, D., additional
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- 2008
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4. Esophageal contractile segment impedance from high-resolution impedance manometry correlates with mean nocturnal baseline impedance and acid exposure time from 24-hour pH-impedance monitoring.
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Horton A, Posner S, Sullivan B, Cornejo J, Davis A, Fields M, McIntosh T, Gellad Z, Shimpi R, Gyawali CP, and Patel A
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- Electric Impedance, Humans, Hydrogen-Ion Concentration, Manometry, Esophageal pH Monitoring, Heartburn
- Abstract
Esophageal baseline impedance (BI) acquired during esophageal contraction (contractile segment impedance [CSI]) is proposed to improve BI accuracy in gastroesophageal reflux disease (GERD). We evaluated associations between CSI and conventional and novel GERD metrics. We analyzed high-resolution impedance manometry (HRIM) and ambulatory pH-impedance studies from 51 patients (58.6 ± 1.5 years; 26% F) with GERD symptoms studied off antisecretory therapy. Patients with achalasia or absent contractility were excluded. CSI (averaged across 10 swallows) and BI-HRIM (from the resting landmark phase) were acquired from the distal impedance sensors (distal sensor and 5 cm above the lower esophageal sphincter). Acid exposure time (AET) and mean nocturnal baseline impedance (MNBI) were calculated. Associations between CSI, BI-HRIM, MNBI, and AET were evaluated using correlation (Pearson) and receiver operating characteristic (ROC) analysis. Presenting symptoms included heartburn (67%), regurgitation (12%), cough (12%), and chest pain (10%). CSI-distal and CSI-5 each correlated with BI-HRIM, AET, and distal MNBI. Associations with AET were numerically stronger for CSI-distal (r = -0.46) and BI-HRIM-distal (r = -0.44) than CSI-5 (r = -0.33), BI-HRIM-5 (r = -0.28), or distal MNBI (r < -0.36). When compared to AET <4%, patients with AET >6% had significantly lower CSI-distal and BI-HRIM-distal values but not CSI-5, BI-HRIM-5, or MNBI. ROC areas under the curve for AET >6% were numerically higher for CSI-distal (0.81) than BI-HRIM-distal (0.77), distal MNBI (0.68-0.75), CSI-5 (0.68), or BI-HRIM-5 (0.68). CSI from HRIM studies inversely correlates with pathologic AET and has potential to augment the evaluation of GERD., (© The Author(s) 2020. Published by Oxford University Press on behalf of International Society for Diseases of the Esophagus. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2020
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5. A Smartphone App With a Digital Care Pathway for Patients Undergoing Spine Surgery: Development and Feasibility Study.
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Ponder M, Ansah-Yeboah AA, Charalambous LT, Adil SM, Venkatraman V, Abd-El-Barr M, Haglund M, Grossi P, Yarbrough C, Dharmapurikar R, Gellad Z, and Lad SP
- Abstract
Background: There is a great unmet clinical need to provide patients undergoing spinal surgery and their caregivers with ongoing, high-quality care before and after surgery in an efficiency-focused health care environment., Objective: The objective of this study is to design, develop, and evaluate the acceptability and feasibility of a novel planning-, outcomes-, and analytics-based smartphone app called ManageMySurgery (MMS) in patients undergoing elective spine surgery (MMS-Spine)., Methods: The development process of the MMS app was conducted over 2 sequential stages: (1) an evidence-based intervention design with refinement from surgeon and patient feedback and (2) feasibility testing in a clinical pilot study. We developed a novel, mobile-based, Health Insurance Portability and Accountability Act-compliant platform for interventional and surgical procedures. It is a patient-centric mobile health app that streamlines patients' interactions with their care team. MMS divides the patient journey into phases, making it feasible to provide customized care pathways that meet patients' unique needs. Patient-reported outcomes are easily collected and conform to the National Institutes of Health Patient-Reported Outcomes Measurement Information System (PROMIS) standard., Results: We tested the feasibility of the MMS-Spine app with patients undergoing elective spine surgery at a large academic health system. A total of 47 patients undergoing elective spine surgery (26 cervical spine and 21 lumbar spine surgeries) downloaded and used MMS-Spine to navigate their surgical journey, quantify their baseline characteristics and postoperative outcomes, and provide feedback on the utility of the app in preparing for and recovering from their spinal surgery. The median age was 59.0 (range 33-77) years, 22 of the 47 patients (47%) were women, and 26 patients (55%) had commercial insurance. Of the 47 patients, a total of 33 (70%) logged in on an iOS device, 11 (23%) on an Android device, and 3 (6%) on a computer or tablet. A total of 17 of the 47 patients (36%) added a caregiver, of which 7 (41%) logged in. The median number of sign-ins was 2. A total of 38 of 47 patients (81%) completed their baseline preoperative PROMIS-29 outcomes, and 14 patients (30%) completed at least one PROMIS-29 survey during the postoperative period. Of the 24 patients who completed the MMS survey, 21 (88%) said it was helpful during preparation for their procedure, 16 (67%) said it was helpful during the postoperative period, and 23 (96%) said that they would recommend MMS to a friend or family member., Conclusions: We used a patient-centered approach based on proven behavior change techniques to develop a comprehensive smartphone app for patients undergoing elective spine surgery. The optimized version of the app is ready for formal testing in a larger randomized clinical study to establish its cost-effectiveness and effect on patients' self-management skills and long-term outcomes., (©Madison Ponder, Abena A. Ansah-Yeboah, Lefko T. Charalambous, Syed M. Adil, Vishal Venkatraman, Muhammad Abd-El-Barr, Michael Haglund, Peter Grossi, Chester Yarbrough, Rajeev Dharmapurikar, Ziad Gellad, Shivanand P. Lad. Originally published in JMIR Perioperative Medicine (http://periop.jmir.org), 16.10.2020.)
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- 2020
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6. Esophageal Baseline Impedance From High-resolution Impedance Manometry Correlates With Mean Nocturnal Baseline Impedance From pH-impedance Monitoring.
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Horton A, Sullivan B, Charles K, McIntosh T, Davis A, Gellad Z, Shimpi R, Gyawali CP, and Patel A
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Background/aims: Esophageal baseline impedance (BI) can be extracted from pH-impedance tracings as mean nocturnal baseline impedance (MNBI), and from high-resolution impedance manometry (HRIM), but it is unknown if values are similar between acquisition methods across HRIM manufacturers. We aim to assess correlations between MNBI and BI from HRIM (BI-HRIM) from 2 HRIM manufacturers in the setting of physiologic acid exposure time (AET)., Methods: HRIM and pH-impedance monitoring demonstrating physiologic AET (< 4%) off proton pump inhibitors were required. BI-HRIM was extracted as the average from 5 cm and 10 cm above the lower esophageal sphincter. Distal BI-HRIM (DBI-HRIM) was also extracted from the most distal channel (Medtronic studies). MNBI was extracted from 6 channels. Concordance between BI-HRIM across manufacturers with MNBI was analyzed., Results: Thirty-six patients met the inclusion criteria (59.6 ± 1.7 years; 22% female; body mass index 30.5 ± 0.7; AET 1.6 ± 0.2%). Although MNBI was similar at all channels ( P ≥ 0.18), Diversatek BI-HRIM was lower than Medtronic BI-HRIM ( P = 0.003). Overall, BI-HRIM correlated with MNBI at corresponding recording sites, 7 cm and 9 cm ( P < 0.05), but not at other sites ( P ≥ 0.19). Pearson's correlations > 0.5 were seen at MNBI at 7 cm for both systems, and at 9 cm for Medtronic. DBI-HRIM correlated with MNBI at 3 cm and 5 cm ( P < 0.03), but not at other locations ( P > 0.1)., Conclusions: While numeric differences exist between manufacturers, BI-HRIM correlates with MNBI from corresponding channels in patients with physiologic AET. Comparison with AET elevation is needed to determine correlations between pathologic MNBI with BI-HRIM across manufacturers. The optimal HRIM channels from which BI values should be extracted also warrants further study.
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- 2020
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7. Personalisation of colorectal cancer screening.
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Gellad Z
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- Female, Humans, Male, Adenoma diagnostic imaging, Colonic Polyps diagnostic imaging, Colorectal Neoplasms diagnostic imaging, Cone-Beam Computed Tomography, Mass Screening methods
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- 2013
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8. Disparity in the kinetics of onset of hypermutation in immunoglobulin heavy and light chains.
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van der Keyl H, Gellad ZF, and Owen JA
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- Animals, Base Sequence, Female, Immunoglobulin G genetics, Immunoglobulin M genetics, Immunoglobulin Variable Region genetics, Kinetics, Mice, Mice, Inbred BALB C, Molecular Sequence Data, Mutation, Immunoglobulin Class Switching genetics, Immunoglobulin Heavy Chains genetics, Immunoglobulin Light Chains genetics
- Abstract
The present paper describes a comparative analysis of light chains associated with primary and secondary IgM, as well as with secondary IgG antibodies to fluorescein, undertaken in order to explore the relationship between light chain somatic hypermutation and the isotype switch. The data reveal a disparity in the frequency of somatic hypermutation of secondary IgM heavy versus light chains. Among 20 secondary IgM light chains, a mutation frequency of 1/777 nucleotides was defined. In contrast, our previous analysis of the heavy chains of these molecules had identified a mutation frequency of 1/129. Among 17 IgG-derived light chains, obtained from animals killed at the same time point as those from which the secondary IgM antibodies were obtained, we measured a mutation frequency of 1/77. Finally, analysis of 20 light chains derived from primary IgM antibodies revealed a mutation frequency of only 1/1192 nucleotides. These data demonstrate that, prior to the class switch, light chain mutation occurs at a frequency considerably lower than that measured for the associated heavy chain gene. Six additional apparent mutations in the secondary IgM antibody 95B3 were all shared with a set of IgG antifluorescein antibodies belonging to the Vkappa 34 family. It is suggested that these light chains represent the products of a previously uncharacterized germ line gene.
- Published
- 2000
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