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641 results on '"Veeravagu, Anand"'

108. Timing of Adjuvant Radiation Therapy and Risk of Wound-Related Complications Among Patients With Spinal Metastatic Disease

Author

Azad, Tej D, Varshneya, Kunal; https://orcid.org/0000-0003-4910-9712, Herrick, Daniel B, Pendharkar, Arjun V, Ho, Allen L, Stienen, Martin, Zygourakis, Corinna, Bagshaw, Hilary P, Veeravagu, Anand, Ratliff, John K, Desai, Atman, Azad, Tej D, Varshneya, Kunal; https://orcid.org/0000-0003-4910-9712, Herrick, Daniel B, Pendharkar, Arjun V, Ho, Allen L, Stienen, Martin, Zygourakis, Corinna, Bagshaw, Hilary P, Veeravagu, Anand, Ratliff, John K, and Desai, Atman

Abstract

Study Design: This was an epidemiological study using national administrative data from the MarketScan database. Objective: To investigate the impact of early versus delayed adjuvant radiotherapy (RT) on wound healing following surgical resection for spinal metastatic disease. Methods: We queried the MarketScan database (2007-2016), identifying patients with a diagnosis of spinal metastasis who also underwent RT within 8 weeks of surgery. Patients were categorized into “Early RT” if they received RT within 4 weeks of surgery and as “Late RT” if they received RT between 4 and 8 weeks after surgery. Descriptive statistics and hypothesis testing were used to compare baseline characteristics and wound complication outcomes. Results: A total of 540 patients met the inclusion criteria: 307 (56.9%) received RT within 4 weeks (Early RT) and 233 (43.1%) received RT within 4 to 8 weeks (Late RT) of surgery. Mean days to RT for the Early RT cohort was 18.5 (SD, 6.9) and 39.7 (SD, 7.6) for the Late RT cohort. In a 90-day surveillance period, n = 9 (2.9%) of Early RT and n = 8 (3.4%) of Late RT patients developed wound complications (P = .574). Conclusions: When comparing patients who received RT early versus delayed following surgery, there were no significant differences in the rates of wound complications. Further prospective studies should aim to identify optimal patient criteria for early postoperative RT for spinal metastases.

Published
2021

109. A Comparative Analysis of Patients Undergoing Fusion for Adult Cervical Deformity by Approach Type

Author

Varshneya, Kunal; https://orcid.org/0000-0003-4910-9712, Medress, Zachary A, Stienen, Martin N; https://orcid.org/0000-0002-6417-1787, Nathan, Jay; https://orcid.org/0000-0002-6853-344X, Ho, Allen, Pendharkar, Arjun V, Loo, Sheri, Aikin, Jessica, Li, Gordon, Desai, Atman, Ratliff, John K, Veeravagu, Anand, Varshneya, Kunal; https://orcid.org/0000-0003-4910-9712, Medress, Zachary A, Stienen, Martin N; https://orcid.org/0000-0002-6417-1787, Nathan, Jay; https://orcid.org/0000-0002-6853-344X, Ho, Allen, Pendharkar, Arjun V, Loo, Sheri, Aikin, Jessica, Li, Gordon, Desai, Atman, Ratliff, John K, and Veeravagu, Anand

Abstract

Study Design: Retrospective cohort study. Objective: To provide insight into postoperative complications, short-term quality outcomes, and costs of the surgical approaches of adult cervical deformity (ACD). Methods: A national database was queried from 2007 to 2016 to identify patients who underwent cervical fusion for ACD. Patients were stratified by approach type—anterior, posterior, or circumferential. Patients undergoing anterior and posterior approach surgeries were additionally compared using propensity score matching. Results: A total of 6575 patients underwent multilevel cervical fusion for ACD correction. Circumferential fusion had the highest postoperative complication rate (46.9% vs posterior: 36.7% vs anterior: 18.5%, P < .0001). Anterior fusion patients more commonly required reoperation compared with posterior fusion patients (P < .0001), and 90-day readmission rate was highest for patients undergoing circumferential fusion (P < .0001). After propensity score matching, the complication rate remained higher in the posterior, as compared to the anterior fusion group (P < .0001). Readmission rate also remained higher in the posterior fusion group; however, anterior fusion patients were more likely to require reoperation. At index hospitalization, posterior fusion led to 1.5× higher costs, and total payments at 90 days were 1.6× higher than their anterior fusion counterparts. Conclusion: Patients who undergo posterior fusion for ACD have higher complication rates, readmission rates, and higher cost burden than patients who undergo anterior fusion; however, posterior correction of ACD is associated with a lower rate of reoperation.

Published
2021

110. Postoperative Complication Burden, Revision Risk, and Health Care Use in Obese Patients Undergoing Primary Adult Thoracolumbar Deformity Surgery

Author

Varshneya, Kunal; https://orcid.org/0000-0003-4910-9712, Pangal, Dhiraj J, Stienen, Martin N; https://orcid.org/0000-0002-6417-1787, Ho, Allen L, Fatemi, Parastou, Medress, Zachary A, Herrick, Daniel B, Desai, Atman, Ratliff, John K, Veeravagu, Anand, Varshneya, Kunal; https://orcid.org/0000-0003-4910-9712, Pangal, Dhiraj J, Stienen, Martin N; https://orcid.org/0000-0002-6417-1787, Ho, Allen L, Fatemi, Parastou, Medress, Zachary A, Herrick, Daniel B, Desai, Atman, Ratliff, John K, and Veeravagu, Anand

Abstract

Study Design: This is a retrospective cohort study using a nationally representative administrative database. Objective: To identify the impact of obesity on postoperative outcomes in patients undergoing thoracolumbar adult spinal deformity (ASD) surgery. Background: The obesity rate in the United States remains staggering, with approximately one-third of all Americans being overweight or obese. However, the impact of elevated body mass index on spine surgery outcomes remains unclear. Methods: We queried the MarketScan database to identify patients who were diagnosed with a spinal deformity and underwent ASD surgery from 2007 to 2016. Patients were then stratified by whether or not they were diagnosed as obese at index surgical admission. Propensity score matching (PSM) was then utilized to mitigate intergroup differences between obese and nonobese patients. Patients <18 years and those with any prior history of trauma or tumor were excluded from this study. Baseline demographics and comorbidities, postoperative complication rates, and short- and long-term reoperation rates were determined. Results: A total of 7423 patients met the inclusion criteria of this study, of whom 597 (8.0%) were obese. Initially, patients with obesity had a higher 90-day postoperative complication rate than nonobese patients (46.1% vs 40.8%, P < .05); however, this difference did not remain after PSM. Revision surgery rates after 2 years were similar across the 2 groups following primary surgery (obese, 21.4%, vs nonobese, 22.0%; P = .7588). Health care use occurred at a higher rate among obese patients through 2 years of long-term follow-up (obese, $152 930, vs nonobese, $140 550; P < .05). Conclusion: Patients diagnosed with obesity who underwent ASD surgery did not demonstrate increased rates of complications, reoperations, or readmissions. However, overall health care use through 2 years of follow-up after index surgery was higher in the obesity cohort.

Published
2021

111. How to Find a Position

Author

Agarwal, Nitin, primary, Alonso, Fernando, additional, Miller, Catherine, additional, Tenny, Steven, additional, Youngerman, Brett, additional, and Veeravagu, Anand, additional

Published
2017
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112. Spinal Traction

Author

Medress, Zachary A., primary, Veeravagu, Anand, additional, Ratliff, John K., additional, and Grant, Gerald A., additional

Published
2017
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113. Employment Details

Author

Agarwal, Nitin, primary, Alonso, Fernando, additional, Miller, Catherine, additional, Tenny, Steven, additional, Youngerman, Brett, additional, and Veeravagu, Anand, additional

Published
2017
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114. Contributors

Author

Abbed, Khalid M., primary, Abdullah, Kalil G., additional, Ackerman, Paul D., additional, Alapan, Yunus, additional, Alentado, Vincent J., additional, Alvin, Matthew D., additional, Ames, Christopher P., additional, Anand, Neel, additional, Anderson, Paul A., additional, Angelov, Lilyana, additional, Anissipour, Alireza K., additional, Anson, John A., additional, Apfelbaum, Ronald I., additional, Archdeacon, Michael, additional, Arnold, Paul M., additional, Arun, Mike W.J., additional, Arzi, Harel, additional, Awad, Ahmed J., additional, Awad, Basem I., additional, Bahuleyan, Biji, additional, Bain, Mark D., additional, Baird, Lissa C., additional, Baisden, Jamie, additional, Baldwin, Nevan G., additional, Ball, Perry A., additional, Balsara, Karl E., additional, Baron, Eli M., additional, Batjer, H. Hunt, additional, Bauer, Andrew M., additional, Bauer, Thomas W., additional, Beckman, Joshua M., additional, Bell, Gordon R., additional, Bellabarba, Carlo, additional, Bennett, E. Emily, additional, Benzel, Edward C., additional, Bergey, Darren L., additional, Bhalla, Tarun, additional, Bierbrauer, Karin S., additional, Bilsky, Mark, additional, Birk, Harjus, additional, Bisson, Erica F., additional, Bono, Christopher, additional, Bransford, Richard J., additional, Brodke, Darrel S., additional, Brooks, Nathaniel, additional, Brotea, Cristian, additional, Brougham, Jared R., additional, Browd, Samuel R., additional, Buckley, Robert T., additional, Burch, Shane, additional, Butler, John, additional, Bydon, Mohamad, additional, Casha, Steven, additional, Ceuppens, Jeroen, additional, Chan, Andrew K., additional, Chen, Thomas C., additional, Cheng, Joseph, additional, Chou, Dean, additional, Choudhri, Tanvir, additional, Clark, Aaron J., additional, Conley, Adam M., additional, Cooper, Paul R., additional, Coric, Domagoj, additional, Corriveau, Mark, additional, Côté, Ian P., additional, Coumans, Jean-Valery C.E., additional, Crawford, Charles H., additional, Curry, William T., additional, Daffner, Scott D., additional, Dalbayrak, Sedat, additional, DeMicco, Russell C., additional, Deutsch, Harel, additional, Dhall, Sanjay S., additional, DiAngelo, Denis J., additional, Dickman, Curtis A., additional, Dodwad, Shah-Nawaz M., additional, Duarte, Siena M., additional, Ebrahim, Zeyd, additional, Eckardt, Gerald W., additional, Ehni, Bruce L., additional, Eichholz, Kurt M., additional, Eichler, Marc, additional, Elbabaa, Samer K., additional, Elder, Benjamin D., additional, Elder, James B., additional, Ellenbogen, Richard G., additional, Epstein, Nancy, additional, Errico, Thomas J., additional, Esquenazi, Yoshua, additional, Fahim, Daniel K., additional, Farag, Ehab, additional, Farley, Chad W., additional, Fehlings, Michael G., additional, Feigenbaum, Frank, additional, Fenton, Eoin, additional, Ferrara, Lisa A., additional, Fessler, R. David, additional, Fessler, Richard G., additional, Finn, Michael A., additional, Finnan, Ryan, additional, Fischgrund, Jeffrey S., additional, Foley, Kevin T., additional, Fontes, Ricardo B.V., additional, Francis, Todd B., additional, Freedman, Brett A., additional, Frost, Frederick, additional, George, John, additional, German, John W., additional, Gerszten, Peter C., additional, Ghobrial, George M., additional, Ghogawala, Zoher, additional, Gibson, Justin L., additional, Gillis, Christopher C., additional, Goel, Vijay K., additional, Goffin, Jan, additional, Gokaslan, Ziya L., additional, Gollogly, Sohrab, additional, Goodwin, C. Rory, additional, Goulart, Carlos R., additional, Goz, Vadim, additional, Gozal, Yair M., additional, Graham, Randall B., additional, Grant, Gerald A., additional, Guan, Jian, additional, Gulec, Ilker, additional, Gussous, Yazeed M., additional, Guyer, Richard D., additional, Gwinn, David, additional, Ha, Sung, additional, Hadar, Eldad, additional, Haldeman, Clayton L., additional, Halim, Alexander Y., additional, Hamilton, Kimberly M., additional, Hammer, Christine L., additional, Hanbali, Fadi, additional, Hann, Shannon W., additional, Harms, Jurgen, additional, Harrop, James S., additional, Hart, Blaine L., additional, Hart, David J., additional, Harwell, Daniel, additional, Hayek, Reyaad A., additional, Heary, Robert F., additional, Henderson, Fraser C., additional, Hitchon, Patrick W., additional, Hoh, Daniel J., additional, Holman, Paul J., additional, Hosono, Noboru, additional, Houseman, Clifford, additional, Houten, John K., additional, Hsieh, Joseph C., additional, Hsu, Wellington K., additional, Huang, Meng, additional, Hurlbert, R. John, additional, Hwang, Lee, additional, Hwang, Steven, additional, İnceoğlu, Serkan, additional, Infinger, Libby Kosnik, additional, de Oliveira, Tatiana von Hertwig Fernandes, additional, Jalan, Devesh, additional, Jha, Neilank, additional, Johnson, J. Patrick, additional, Jones, Charles I., additional, Jones, G. Alexander, additional, Jones, Michael, additional, Juthani, Rupa G., additional, Kager, Christopher D., additional, Kalani, Maziyar A., additional, Kalani, M. Yashar S., additional, Kalfas, Iain H., additional, Kalra, Ricky R., additional, Karimi, Reza J., additional, Kashlan, Osama, additional, Kasliwal, Manish K., additional, Kaul, Vikas, additional, Kaushal, Mayank, additional, Kenning, Tyler J., additional, Khairi, Saad, additional, Khalaf, Tagreed, additional, Khalil, Jad G., additional, Khoo, Larry T., additional, Kiapour, Ali, additional, Kim, Daniel H., additional, Kim, David H., additional, Kimmell, Kristopher T., additional, Kirshblum, Steven, additional, Kitab, Sameer A., additional, Klimo, Paul, additional, Klineberg, Eric O., additional, Koski, Tyler R., additional, Kosztowski, Thomas A., additional, Kowalski, Robert J., additional, Krishnaney, Ajit A., additional, Krupa, Kelly, additional, Krupa, Kristin, additional, Kshettry, Varun R., additional, Kukreja, Sunil, additional, Kuntz, Charles, additional, Kurpad, Shekar N., additional, Kusuma, Srinivasu, additional, LaBagnara, Michael, additional, La Marca, Frank, additional, Laufer, Ilya, additional, Lavelle, Elizabeth Demers, additional, Lavelle, William F., additional, Lawrence, W. Thomas, additional, Lebl, Darren R., additional, Lee, Bryan S., additional, Lee, Sun-Ho, additional, Lenke, Lawrence G., additional, Leon, Steven P., additional, Li, Amy, additional, Li, Yiping, additional, Lieberman, Isador H., additional, Liu, James K.C., additional, Lo, Victor P., additional, Lollis, S. Scott, additional, Lopez-Gonzalez, Miguel, additional, Lubelski, Daniel, additional, Luciano, Mark G., additional, Machado, Andre G., additional, Maddela, Raghu, additional, Madineni, Ravichandra A., additional, Madura, Casey, additional, Maiman, Dennis J., additional, Malone, David G., additional, Mammis, Antonios, additional, Marawar, Satyajit, additional, Marcotte, Nicolas, additional, Maroon, Joseph C., additional, Martin, Michael D., additional, Martinez-del-Campo, Eduardo, additional, Massicotte, Eric M., additional, Mattei, Tobias A., additional, Maurer, Paul K., additional, Mayer, Eric A.K., additional, del Valle, Miguel Mayol, additional, Mazanec, Daniel J., additional, McCormick, Paul C., additional, McCormick, William, additional, Medress, Zachary A., additional, Mendel, Ehud, additional, Metkar, Umesh S., additional, Miele, Vincent J., additional, Mohyeldin, Ahmed, additional, Monsef, Jad Bou, additional, Moore, Timothy A., additional, Morisue, Hikaru, additional, Morone, Peter, additional, Mroz, Thomas E., additional, Mullin, Jeffrey P., additional, Murtagh, F. Reed, additional, Murtagh, Ryan D., additional, Naderi, Sait, additional, Nagaraj, Usha D., additional, Nalley, Charles C., additional, Nanda, Anil, additional, Nasca, Richard J., additional, Nater, Anick, additional, Neal, Matthew T., additional, Nockels, Russ P., additional, Norwig, John A., additional, Ondoma, Solomon M., additional, Oni-Orisan, Akinwunmi, additional, Oren, Jonathan H., additional, Orning, Jennifer, additional, Orr, R. Douglas, additional, Orrico, Katie, additional, Osorio, Joseph A., additional, Otero-Lopez, Ernesto, additional, O'Toole, John, additional, Park, Paul, additional, Parmar, Vikas, additional, Pashman, Robert S., additional, Patel, Rakesh D., additional, Patel, Smruti K., additional, Perez-Cruet, Mick J., additional, Perin, Noel I., additional, Pettigrew, David B., additional, Phillips, H. Westley, additional, Placide, Rick, additional, Porensky, Paul, additional, Prager, Joshua P., additional, Prasad, Srinivas, additional, Prasarn, Mark L., additional, Ramakrishnan, Rakesh, additional, Ramayya, Ashwin G., additional, Rampersaud, Y. Raja, additional, Rasmussen, Peter A., additional, Ratliff, John K., additional, Rauschning, Wolfgang, additional, Rechtine, Glenn R., additional, Recinos, Pablo F., additional, Resnick, Daniel K., additional, Rhee, Jay, additional, Rhines, Laurence D., additional, Riccio, Alexander R., additional, Richardson, Marlin Dustin, additional, Richter, Bertram, additional, Riesenburger, Ron, additional, Riew, K. Daniel, additional, Rogers, Matthew, additional, Saavedra, Fanor M., additional, Safain, Mina G., additional, Saigal, Rajiv, additional, Sawin, Paul D., additional, Scheer, Justin K., additional, Scheidler, Joshua, additional, Schippert, David W., additional, Schlenk, Richard, additional, Schmidt, Bradley, additional, Schmidt, Meic H., additional, Sciubba, Daniel M., additional, Shaffrey, Christopher I., additional, Shaffrey, Mark E., additional, Shah, Anoli, additional, Sharan, Alok, additional, Sharan, Ashwini D., additional, Shedid, Daniel, additional, Shook, Steven, additional, Silverstein, Michael P., additional, Simpson, Venita M., additional, Sin, Anthony, additional, Singh, Harminder, additional, Smith, Donald A., additional, Smith, Gabriel A., additional, Smith, Justin S., additional, Smith, Kyle A., additional, Sonntag, Volker K.H., additional, Soriano-Baron, Hector, additional, Spetzler, Robert F., additional, Spiker, W. Ryan, additional, Staub, Blake, additional, Steinmetz, Michael P., additional, Stillerman, Charles B., additional, Strayer, Andrea, additional, Subramaniam, Gandhivarma, additional, Sukkarieh, Hamdi G., additional, Sumich, Andrew, additional, Sun, Derrick Y., additional, Sunna, Tarek P., additional, Sure, Durga R., additional, Tallarico, Richard A., additional, Tan, Lee A., additional, Tatsui, Claudio E., additional, Techy, Fernando, additional, Theodore, Nicholas, additional, Theologis, Alexander A., additional, Thomas, Nicholas W.M., additional, Thorp, Brian D., additional, Tintle, Scott, additional, Tjoumakaris, Stavropoula, additional, Tobler, William D., additional, Togawa, Daisuke, additional, Traul, David, additional, Traynelis, Vincent C., additional, Tritle, A. Sophia, additional, Trost, Gregory R., additional, Tsai, Eve C., additional, Ugokwe, Kene, additional, Uluc, Kutlauy, additional, Uribe, Juan S., additional, Vaccaro, Alexander R., additional, Valadka, Alex, additional, Vedantam, Aditya, additional, Veeravagu, Anand, additional, Verma, Kushagra, additional, Vitaz, Todd, additional, Voyadzis, Jean-Marc, additional, Wagner, Scott, additional, Wahlquist, Trevor C., additional, Waldrop, Robert, additional, Walsh, Kevin M., additional, Wang, Jeffrey C., additional, Wang, Michael Y., additional, Wang, Patrick T., additional, Ward, John D., additional, Wardak, Zabi, additional, Wathen, Connor, additional, Weinstein, Philip R., additional, Weisman, Michael, additional, Welch, William C., additional, Weller, Simcha J., additional, Westerlund, L. Erik, additional, White, Jonathan A., additional, Whitmore, Robert G., additional, Wilberger, Jack E., additional, Williams, Kim A., additional, Winkler, Ethan A., additional, Witiw, Christopher D., additional, Wolfla, Christopher E., additional, Wolinsky, Jean-Paul, additional, Wong, Cyrus, additional, Woodard, Eric J., additional, Yanamadala, Vijay, additional, Yanni, Daniel S., additional, Yazbak, Philip A., additional, Yen, Chun-Po, additional, Yilmaz, Mesut, additional, Yoganandan, Narayan, additional, Yonemura, Kenneth S., additional, Yonenobu, Kazuo, additional, Yuan, Hansen A., additional, Yue, John K., additional, Zanation, Adam M., additional, Zavarella, Salvatore M., additional, Zeidman, Seth M., additional, Zileli, Mehmet, additional, Zuckerman, Scott, additional, and Zywicke, Holly, additional

Published
2017
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115. Fellowship Training

Author

Agarwal, Nitin, primary, Alonso, Fernando, additional, Miller, Catherine, additional, Tenny, Steven, additional, Youngerman, Brett, additional, and Veeravagu, Anand, additional

Published
2017
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116. Practice Types

Author

Agarwal, Nitin, primary, Alonso, Fernando, additional, Miller, Catherine, additional, Tenny, Steven, additional, Youngerman, Brett, additional, and Veeravagu, Anand, additional

Published
2017
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119. Artificial Intelligence in Neurosurgery: A State-of-the-Art Review from Past to Future.

Author

Tangsrivimol, Jonathan A., Schonfeld, Ethan, Zhang, Michael, Veeravagu, Anand, Smith, Timothy R., Härtl, Roger, Lawton, Michael T., El-Sherbini, Adham H., Prevedello, Daniel M., Glicksberg, Benjamin S., and Krittanawong, Chayakrit

Subjects
ARTIFICIAL intelligence, NEUROSURGERY, SPINAL surgery, MACHINE learning, ARTIFICIAL neural networks, SURGICAL complications
Abstract

In recent years, there has been a significant surge in discussions surrounding artificial intelligence (AI), along with a corresponding increase in its practical applications in various facets of everyday life, including the medical industry. Notably, even in the highly specialized realm of neurosurgery, AI has been utilized for differential diagnosis, pre-operative evaluation, and improving surgical precision. Many of these applications have begun to mitigate risks of intraoperative and postoperative complications and post-operative care. This article aims to present an overview of the principal published papers on the significant themes of tumor, spine, epilepsy, and vascular issues, wherein AI has been applied to assess its potential applications within neurosurgery. The method involved identifying high-cited seminal papers using PubMed and Google Scholar, conducting a comprehensive review of various study types, and summarizing machine learning applications to enhance understanding among clinicians for future utilization. Recent studies demonstrate that machine learning (ML) holds significant potential in neuro-oncological care, spine surgery, epilepsy management, and other neurosurgical applications. ML techniques have proven effective in tumor identification, surgical outcomes prediction, seizure outcome prediction, aneurysm prediction, and more, highlighting its broad impact and potential in improving patient management and outcomes in neurosurgery. This review will encompass the current state of research, as well as predictions for the future of AI within neurosurgery. [ABSTRACT FROM AUTHOR]

Published
2023
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123. Machine learning in neurosurgery: a global survey

Author

Staartjes, Victor E; https://orcid.org/0000-0003-1039-2098, Stumpo, Vittorio, Kernbach, Julius M, Klukowska, Anita M, Gadjradj, Pravesh S, Schröder, Marc L, Veeravagu, Anand, Stienen, Martin N; https://orcid.org/0000-0002-6417-1787, van Niftrik, Christiaan H B; https://orcid.org/0000-0003-0930-8717, Serra, Carlo; https://orcid.org/0000-0002-7305-550X, Regli, Luca, Staartjes, Victor E; https://orcid.org/0000-0003-1039-2098, Stumpo, Vittorio, Kernbach, Julius M, Klukowska, Anita M, Gadjradj, Pravesh S, Schröder, Marc L, Veeravagu, Anand, Stienen, Martin N; https://orcid.org/0000-0002-6417-1787, van Niftrik, Christiaan H B; https://orcid.org/0000-0003-0930-8717, Serra, Carlo; https://orcid.org/0000-0002-7305-550X, and Regli, Luca

Abstract

BackgroundRecent technological advances have led to the development and implementation of machine learning (ML) in various disciplines, including neurosurgery. Our goal was to conduct a comprehensive survey of neurosurgeons to assess the acceptance of and attitudes toward ML in neurosurgical practice and to identify factors associated with its use.MethodsThe online survey consisted of nine or ten mandatory questions and was distributed in February and March 2019 through the European Association of Neurosurgical Societies (EANS) and the Congress of Neurosurgeons (CNS).ResultsOut of 7280 neurosurgeons who received the survey, we received 362 responses, with a response rate of 5%, mainly in Europe and North America. In total, 103 neurosurgeons (28.5%) reported using ML in their clinical practice, and 31.1% in research. Adoption rates of ML were relatively evenly distributed, with 25.6% for North America, 30.9% for Europe, 33.3% for Latin America and the Middle East, 44.4% for Asia and Pacific and 100% for Africa with only two responses. No predictors of clinical ML use were identified, although academic settings and subspecialties neuro-oncology, functional, trauma and epilepsy predicted use of ML in research. The most common applications were for predicting outcomes and complications, as well as interpretation of imaging.ConclusionsThis report provides a global overview of the neurosurgical applications of ML. A relevant proportion of the surveyed neurosurgeons reported clinical experience with ML algorithms. Future studies should aim to clarify the role and potential benefits of ML in neurosurgery and to reconcile these potential advantages with bioethical considerations.

Published
2020

124. Objective activity tracking in spine surgery: a prospective feasibility study with a low-cost consumer grade wearable accelerometer

Author

Stienen, Martin N; https://orcid.org/0000-0002-6417-1787, Rezaii, Paymon G, Ho, Allen L, Veeravagu, Anand, Zygourakis, Corinna C, Tomkins-Lane, Christy, Park, Jon, Ratliff, John K, Desai, Atman M, Stienen, Martin N; https://orcid.org/0000-0002-6417-1787, Rezaii, Paymon G, Ho, Allen L, Veeravagu, Anand, Zygourakis, Corinna C, Tomkins-Lane, Christy, Park, Jon, Ratliff, John K, and Desai, Atman M

Abstract

Patient-reported outcome measures (PROMs) are commonly used to estimate disability of patients with spinal degenerative disease. Emerging technological advances present an opportunity to provide objective measurements of activity. In a prospective, observational study we utilized a low-cost consumer grade wearable accelerometer (LCA) to determine patient activity (steps per day) preoperatively (baseline) and up to one year (Y1) after cervical and lumbar spine surgery. We studied 30 patients (46.7% male; mean age 57 years; 70% Caucasian) with a baseline activity level of 5624 steps per day. The activity level decreased by 71% in the 1$^{st}$ postoperative week (p < 0.001) and remained 37% lower in the 2$^{nd}$ (p < 0.001) and 23% lower in the 4$^{th}$ week (p = 0.015). At no time point until Y1 did patients increase their activity level, compared to baseline. Activity was greater in patients with cervical, as compared to patients with lumbar spine disease. Age, sex, ethnic group, anesthesia risk score and fusion were variables associated with activity. There was no correlation between activity and PROMs, but a strong correlation with depression. Determining activity using LCAs provides real-time and longitudinal information about patient mobility and return of function. Recovery took place over the first eight postoperative weeks, with subtle improvement afterwards.

Published
2020

127. Introduction

Author

Johnson, Jeremiah, primary, Singer, Justin, additional, Veeravagu, Anand, additional, and Cohen-Gadol, Aaron, additional

Published
2016
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128. Postoperative Complication Burden, Revision Risk, and Health Care Use in Obese Patients Undergoing Primary Adult Thoracolumbar Deformity Surgery

Author

Varshneya, Kunal, Pangal, Dhiraj J, Stienen, Martin N, Ho, Allen L, Fatemi, Parastou, Medress, Zachary A, Herrick, Daniel B, Desai, Atman, Ratliff, John K, Veeravagu, Anand, University of Zurich, and Veeravagu, Anand

Subjects
10180 Clinic for Neurosurgery, 2732 Orthopedics and Sports Medicine, 2728 Neurology (clinical), Clinical Neurology, 610 Medicine & health, Surgery, Orthopedics and Sports Medicine, 2746 Surgery
Published
2021

130. Trends in Anterior Lumbar Interbody Fusion in the United States

Author

Varshneya, Kunal, Medress, Zachary A, Jensen, Michael, Azad, Tej D, Rodrigues, Adrian, Stienen, Martin N, Desai, Atman, Ratliff, John K, Veeravagu, Anand, University of Zurich, and Veeravagu, Anand

Subjects
10180 Clinic for Neurosurgery, 2732 Orthopedics and Sports Medicine, 2728 Neurology (clinical), and readmission following ALIF, Clinical Neurology. For the first time in our knowledge, and cost using a large administrative database. Our study reaffirms prior work that has demonstrated low rates of complications, 610 Medicine & health, Surgery, Orthopedics and Sports Medicine, we identified national trends in ALIF utilization, outcomes, mortality, 2746 Surgery
Published
2020

131. Commentary

Author

Tumialán, Luis M, primary, Veeravagu, Anand, additional, and Ratliff, John K, additional

Published
2021
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139. sj-pdf-1-gsj-10.1177_21925682211050320 – Supplemental Material for Do Epidural Steroid Injections Affect Outcomes and Costs in Cervical Degenerative Disease? A Retrospective MarketScan Database Analysis

Author

Wadhwa, Harsh, Varshneya, Kunal, Stienen, Martin N., and Veeravagu, Anand

Subjects
body regions, FOS: Clinical medicine, fungi, 110323 Surgery, 110604 Sports Medicine, FOS: Health sciences, humanities, 110904 Neurology and Neuromuscular Diseases, 110314 Orthopaedics
Abstract

Supplemental Material, sj-pdf-1-gsj-10.1177_21925682211050320 for Do Epidural Steroid Injections Affect Outcomes and Costs in Cervical Degenerative Disease? A Retrospective MarketScan Database Analysis by Harsh Wadhwa, Kunal Varshneya, Martin N. Stienen and Anand Veeravagu in Global Spine Journal

Published
2021
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141. Craniotomy for resection of meningioma in the elderly: a multicentre, prospective analysis from the National Surgical Quality Improvement Program

Author

Patil, Chirag P., Veeravagu, Anand, Lad, Shivanand P., and Boakye, Maxwell

Subjects
Meningioma -- Care and treatment, Meningioma -- Demographic aspects, Meningioma -- Research, Craniotomy -- Quality management, Craniotomy -- Patient outcomes, Craniotomy -- Research, Medical care -- Quality management, Medical care -- Research, Health, Psychology and mental health
Published
2010

144. Patterns of Opioid and Benzodiazepine Use in Opioid-Naïve Patients with Newly Diagnosed Low Back and Lower Extremity Pain

Author

Azad, Tej D, Zhang, Yi, Stienen, Martin N, Vail, Daniel, Bentley, Jason P, Ho, Allen L, Fatemi, Paras, Herrick, Daniel, Kim, Lily H, Feng, Austin, Varshneya, Kunal, Jin, Michael, Veeravagu, Anand, Bhattacharya, Jayanta, Desai, Manisha, Lembke, Anna, Ratliff, John K, University of Zurich, and Ratliff, John K

Subjects
10180 Clinic for Neurosurgery, 2724 Internal Medicine, Internal Medicine, 610 Medicine & health
Published
2020

148. Robotic-Assisted Spine Surgery: History, Efficacy, Cost, And Future Trends [Corrigendum]

Author

D'Souza,Marissa, Gendreau,Julian, Feng,Austin, Kim,Lily H, Ho,Allen L, and Veeravagu,Anand

Subjects
Research and Reviews [Robotic Surgery]
Abstract

D’Souza M, Gendreau J, Feng A, et al. Robot Surg.2019;6:9–23.Upon reviewing the article, the authors noticed the disclosureon page 20 is incorrect. The Disclosure should be: DrVeeravagu serves as a consultant to Nuvasive, Medtronic,and Johnson & Johnson. Dr Veeravagu also serves asconsultant to and is a stock holder of Surgical Theater.The authors report no other conflicts of interest in thiswork. The authors apologize for this error.Read the original article&nbsp

Published
2019

150. Reliability of the 6-minute walking test smartphone application

Author

Stienen, Martin N, Gautschi, Oliver P, Staartjes, Victor E, Maldaner, Nicolai, Sosnova, Marketa, Ho, Allen L, Veeravagu, Anand, Desai, Atman, Zygourakis, Corinna C, Park, Jon, Regli, Luca, Ratliff, John K, University of Zurich, and Stienen, Martin N

Subjects
OFI = objective functional impairment, PROM = patient, to, TUG = Timed Up and Go, DDD = degenerative disc disease, 5R, DTFS = distance to first symptoms, GPS = global positioning system, lumbar spinal stenosis, rME = relative measurement error, back pain, 610 Medicine & health, LBP = low, objective functional impairment, 10180 Clinic for Neurosurgery, stand, reported outcome measure, global positioning system, 6WT = 6, DW = distance wheel, STS = five, minute walking distance, app = application, ICC = intraclass correlation coefficient, 6WD = 6, General Medicine, repetition sit, 2746 Surgery, minute walking test, TTFS = time to first symptoms, smartphone app, 2728 Neurology (clinical), degenerative disc disease, 2808 Neurology, LSS = lumbar spinal stenosis
Published
2019

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