Browsing by Author "Wood, Jordan"

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    Amalgamation of cloud-based colonoscopy videos with patient-level metadata to facilitate large-scale machine learning
    (Thieme, 2021) Keswani, Rajesh N.; Byrd, Daniel; Garcia Vicente, Florencia; Heller, J. Alex; Klug, Matthew; Mazumder, Nikhilesh R.; Wood, Jordan; Yang, Anthony D.; Etemadi, Mozziyar; Surgery, School of Medicine
    Background and study aims: Storage of full-length endoscopic procedures is becoming increasingly popular. To facilitate large-scale machine learning (ML) focused on clinical outcomes, these videos must be merged with the patient-level data in the electronic health record (EHR). Our aim was to present a method of accurately linking patient-level EHR data with cloud stored colonoscopy videos. Methods: This study was conducted at a single academic medical center. Most procedure videos are automatically uploaded to the cloud server but are identified only by procedure time and procedure room. We developed and then tested an algorithm to match recorded videos with corresponding exams in the EHR based upon procedure time and room and subsequently extract frames of interest. Results: Among 28,611 total colonoscopies performed over the study period, 21,170 colonoscopy videos in 20,420 unique patients (54.2 % male, median age 58) were matched to EHR data. Of 100 randomly sampled videos, appropriate matching was manually confirmed in all. In total, these videos represented 489,721 minutes of colonoscopy performed by 50 endoscopists (median 214 colonoscopies per endoscopist). The most common procedure indications were polyp screening (47.3 %), surveillance (28.9 %) and inflammatory bowel disease (9.4 %). From these videos, we extracted procedure highlights (identified by image capture; mean 8.5 per colonoscopy) and surrounding frames. Conclusions: We report the successful merging of a large database of endoscopy videos stored with limited identifiers to rich patient-level data in a highly accurate manner. This technique facilitates the development of ML algorithms based upon relevant patient outcomes.
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    Digestive Manifestations in Patients Hospitalized With Coronavirus Disease 2019
    (Elsevier, 2020-10-01) Elmunzer, B. Joseph; Spitzer, Rebecca L.; Foster, Lydia D.; Merchant, Ambreen A.; Howard, Eric F.; Patel, Vaishali A.; West, Mary K.; Qayed, Emad; Nustas, Rosemary; Zakaria, Ali; Piper, Marc S.; Taylor, Jason R.; Jaza, Lujain; Forbes, Nauzer; Chau, Millie; Lara, Luis F.; Papachristou, Georgios I.; Volk, Michael L.; Hilson, Liam G.; Zhou, Selena; Kushnir, Vladimir M.; Lenyo, Alexandria M.; McLeod, Caroline G.; Amin, Sunil; Kuftinec, Gabriela N.; Yadav, Dhiraj; Fox, Charlie; Kolb, Jennifer M.; Pawa, Swati; Pawa, Rishi; Canakis, Andrew; Huang, Christopher; Jamil, Laith H.; Aneese, Andrew M.; Glamour, Benita K.; Smith, Zachary L.; Hanley, Katherine A.; Wood, Jordan; Patel, Harsh K.; Shah, Janak N.; Agarunov, Emil; Sethi, Amrita; Fogel, Evan L.; McNulty, Gail; Haseeb, Abdul; Trieu, Judy A.; Dixon, Rebekah E.; Yang, Jeong Yun; Mendelsohn, Robin B.; Calo, Delia; Aroniadis, Olga C.; LaComb, Joseph F.; Scheiman, James M.; Sauer, Bryan G.; Dang, Duyen T.; Piraka, Cyrus R.; Shah, Eric D.; Pohl, Heiko; Tierney, William M.; Mitchell, Stephanie; Condon, Ashwinee; Lenhart, Adrienne; Dua, Kulwinder S.; Kanagala, Vikram S.; Kamal, Ayesha; Singh, Vikesh K.; Pinto-Sanchez, Maria Ines; Hutchinson, Joy M.; Kwon, Richard S.; Korsnes, Sheryl J.; Singh, Harminder; Solati, Zahra; Willingham, Field F.; Yachimski, Patrick S.; Conwell, Darwin L.; Mosier, Evan; Azab, Mohamed; Patel, Anish; Buxbaum, James; Wani, Sachin; Chak, Amitabh; Hosmer, Amy E.; Keswani, Rajesh N.; DiMaio, Christopher J.; Bronze, Michael S.; Muthusamy, Raman; Canto, Marcia I.; Gjeorgjievski, V. Mihajlo; Imam, Zaid; Odish, Fadi; Edhi, Ahmed I.; Orosey, Molly; Tiwari, Abhinav; Patwardhan, Soumil; Brown, Nicholas G.; Patel, Anish A.; Ordiah, Collins O.; Sloan, Ian P.; Cruz, Lilian; Koza, Casey L.; Okafor, Uchechi; Hollander, Thomas; Furey, Nancy; Reykhart, Olga; Zbib, Natalia H.; Damianos, John A.; Esteban, James; Hajidiacos, Nick; Saul, Melissa; Mays, Melanie; Anderson, Gulsum; Wood, Kelley; Mathews, Laura; Diakova, Galina; Caisse, Molly; Wakefield, Lauren; Nitchie, Haley; Waljee, Akbar K.; Tang, Weijing; Zhang, Yueyang; Zhu, Ji; Deshpande, Amar R.; Rockey, Don C.; Alford, Teldon B.; Durkalski, Valerie; Medicine, School of Medicine
    Background & Aims The prevalence and significance of digestive manifestations in coronavirus disease 2019 (COVID-19) remain uncertain. We aimed to assess the prevalence, spectrum, severity, and significance of digestive manifestations in patients hospitalized with COVID-19. Methods Consecutive patients hospitalized with COVID-19 were identified across a geographically diverse alliance of medical centers in North America. Data pertaining to baseline characteristics, symptomatology, laboratory assessment, imaging, and endoscopic findings from the time of symptom onset until discharge or death were abstracted manually from electronic health records to characterize the prevalence, spectrum, and severity of digestive manifestations. Regression analyses were performed to evaluate the association between digestive manifestations and severe outcomes related to COVID-19. Results A total of 1992 patients across 36 centers met eligibility criteria and were included. Overall, 53% of patients experienced at least 1 gastrointestinal symptom at any time during their illness, most commonly diarrhea (34%), nausea (27%), vomiting (16%), and abdominal pain (11%). In 74% of cases, gastrointestinal symptoms were judged to be mild. In total, 35% of patients developed an abnormal alanine aminotransferase or total bilirubin level; these were increased to less than 5 times the upper limit of normal in 77% of cases. After adjusting for potential confounders, the presence of gastrointestinal symptoms at any time (odds ratio, 0.93; 95% CI, 0.76–1.15) or liver test abnormalities on admission (odds ratio, 1.31; 95% CI, 0.80–2.12) were not associated independently with mechanical ventilation or death. Conclusions Among patients hospitalized with COVID-19, gastrointestinal symptoms and liver test abnormalities were common, but the majority were mild and their presence was not associated with a more severe clinical course.
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    Digestive Manifestations in Patients Hospitalized With Coronavirus Disease 2019
    (Elsevier, 2021-07) Elmunzer, B. Joseph; Spitzer, Rebecca L.; Foster, Lydia D.; Merchant, Ambreen A.; Howard, Eric F.; Patel, Vaishali A.; West, Mary K.; Qayed, Emad; Nustas, Rosemary; Zakaria, Ali; Piper, Marc S.; Taylor, Jason R.; Jaza, Lujain; Forbes, Nauzer; Chau, Millie; Lara, Luis F.; Papachristou, Georgios I.; Volk, Michael L.; Hilson, Liam G.; Zhou, Selena; Kushnir, Vladimir M.; Lenyo, Alexandria M.; McLeod, Caroline G.; Amin, Sunil; Kuftinec, Gabriela N.; Yadav, Dhiraj; Fox, Charlie; Kolb, Jennifer M.; Pawa, Swati; Pawa, Rishi; Canakis, Andrew; Huang, Christopher; Jamil, Laith H.; Aneese, Andrew M.; Glamour, Benita K.; Smith, Zachary L.; Hanley, Katherine A.; Wood, Jordan; Patel, Harsh K.; Shah, Janak N.; Agarunov, Emil; Sethi, Amrita; Fogel, Evan L.; McNulty, Gail; Haseeb, Abdul; Trieu, Judy A.; Dixon, Rebekah E.; Yang, Jeong Yun; Mendelsohn, Robin B.; Calo, Delia; Aroniadis, Olga C.; LaComb, Joseph F.; Scheiman, James M.; Sauer, Bryan G.; Dang, Duyen T.; Piraka, Cyrus R.; Shah, Eric D.; Pohl, Heiko; Tierney, William M.; Mitchell, Stephanie; Condon, Ashwinee; Lenhart, Adrienne; Dua, Kulwinder S.; Kanagala, Vikram S.; Kamal, Ayesha; Singh, Vikesh K.; Pinto-Sanchez, Maria Ines; Hutchinson, Joy M.; Kwon, Richard S.; Korsnes, Sheryl J.; Singh, Harminder; Solati, Zahra; Willingham, Field F.; Yachimski, Patrick S.; Conwell, Darwin L.; Mosier, Evan; Azab, Mohamed; Patel, Anish; Buxbaum, James; Wani, Sachin; Chak, Amitabh; Hosmer, Amy E.; Keswani, Rajesh N.; DiMaio, Christopher J.; Bronze, Michael S.; Muthusamy, Raman; Canto, Marcia I.; Gjeorgjievski, V. Mihajlo; Imam, Zaid; Odish, Fadi; Edhi, Ahmed I.; Orosey, Molly; Tiwari, Abhinav; Patwardhan, Soumil; Brown, Nicholas G.; Patel, Anish A.; Ordiah, Collins O.; Sloan, Ian P.; Cruz, Lilian; Koza, Casey L.; Okafor, Uchechi; Hollander, Thomas; Furey, Nancy; Reykhart, Olga; Zbib, Natalia H.; Damianos, John A.; Esteban, James; Hajidiacos, Nick; Saul, Melissa; Mays, Melanie; Anderson, Gulsum; Wood, Kelley; Mathews, Laura; Diakova, Galina; Caisse, Molly; Wakefield, Lauren; Nitchie, Haley; Waljee, Akbar K.; Tang, Weijing; Zhang, Yueyang; Zhu, Ji; Deshpande, Amar R.; Rockey, Don C.; Alford, Teldon B.; Durkalski, Valerie; North American Alliance for the Study of Digestive Manifestations of COVID-19; Medicine, School of Medicine
    BACKGROUND & AIMS: The prevalence and significance of digestive manifestations in coronavirus disease 2019 (COVID-19) remain uncertain. We aimed to assess the prevalence, spectrum, severity, and significance of digestive manifestations in patients hospitalized with COVID-19. METHODS: Consecutive patients hospitalized with COVID-19 were identified across a geographically diverse alliance of medical centers in North America. Data pertaining to baseline characteristics, symptomatology, laboratory assessment, imaging, and endoscopic findings from the time of symptom onset until discharge or death were abstracted manually from electronic health records to characterize the prevalence, spectrum, and severity of digestive manifestations. Regression analyses were performed to evaluate the association between digestive manifestations and severe outcomes related to COVID-19. RESULTS: A total of 1992 patients across 36 centers met eligibility criteria and were included. Overall, 53% of patients experienced at least 1 gastrointestinal symptom at any time during their illness, most commonly diarrhea (34%), nausea (27%), vomiting (16%), and abdominal pain (11%). In 74% of cases, gastrointestinal symptoms were judged to be mild. In total, 35% of patients developed an abnormal alanine aminotransferase or total bilirubin level; these were increased to less than 5 times the upper limit of normal in 77% of cases. After adjusting for potential confounders, the presence of gastrointestinal symptoms at any time (odds ratio, 0.93; 95% CI, 0.76-1.15) or liver test abnormalities on admission (odds ratio, 1.31; 95% CI, 0.80-2.12) were not associated independently with mechanical ventilation or death. CONCLUSIONS: Among patients hospitalized with COVID-19, gastrointestinal symptoms and liver test abnormalities were common, but the majority were mild and their presence was not associated with a more severe clinical course.