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Timothy Cornell, MD

  • Timothy Thomas Cornell

Specialties

Critical Care Medicine

Work and Education

Professional Education

Southern Illinois University School of Medicine Registrar, Springfield, IL, 5/20/1995

Residency

Childrens National Medical Center Pediatric Residency, Washington, DC, 06/30/1999

Fellowship

Baylor College Pediatric Cardiology Residency at Texas Childrens Hospital, Houston, TX, 06/30/2002

University of Michigan GME Training Verifications, Ann Arbor, MI, 06/30/2007

Board Certifications

Pediatric Critical Care Medicine, American Board of Pediatrics

Conditions Treated

Extracorporeal Support in Sepsis

Sepsis

Septic Shock

Severe Sepsis

All Publications

Cardiac Dysfunction Identified by Strain Echocardiography Is Associated With Illness Severity in Pediatric Sepsis. Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies Patel, M. D., Mariano, K., Dunbar, T., Cornell, T. T., Punn, R., Haileselassie, B. 2020

Abstract

Sepsis-induced myocardial dysfunction has been associated with illness severity and mortality in pediatrics. Although early sepsis-induced myocardial dysfunction diagnosis could aid in hemodynamic management, current echocardiographic metrics for assessing biventricular function are limited in detecting early impairment. Strain echocardiography is a validated quantitative measure that can detect subtle perturbations in left ventricular and right ventricular function. This investigation evaluates the utility of strain echocardiography in pediatric sepsis and compares with to conventional methods.Retrospective, observational study comparing left ventricular and right ventricular strain. Strain was compared with ejection fraction and fractional shortening and established sepsis severity of illness markers.Tertiary care medical-surgical PICU from July 2013 to January 2018.Seventy-nine septic children and 28 healthy controls.None.Compared with healthy controls, patients with severe sepsis demonstrated abnormal left ventricular strain (left ventricular longitudinal strain: -13.0% 0.72; p = 0.04 and left ventricular circumferential strain: -16.5% 0.99; p = 0.046) and right ventricular (right ventricular longitudinal strain = -14.3% 6.3; p < 0.01) despite normal fractional shortening (36.0% 1.6 vs 38.1% 1.1; p = 0.5129) and ejection fraction (60.7% 2.2 vs 65.3% 1.5; p = 0.33). There was significant association between depressed left ventricular longitudinal strain and increased Vasotrope-Inotrope Score (r = 0.52; p = 0.034). Worsening left ventricular circumferential strain was correlated with higher lactate (r = 0.31; p = 0.03) and higher Pediatric Risk of Mortality-III score (r = 0.39; p < 0.01). Depressed right ventricular longitudinal strain was associated with elevated pediatric multiple organ dysfunction score (r = 0.44; p < 0.01) CONCLUSIONS:: Compared with healthy children, pediatric septic patients demonstrated abnormal left ventricular and right ventricular strain concerning for early signs of cardiac dysfunction. This was despite having normal ejection fraction and fractional shortening. Abnormal strain was associated with abnormal severity of illness markers. Strain echocardiography may have utility as an early indicator of sepsis-induced myocardial dysfunction in pediatric sepsis.

View details for DOI 10.1097/PCC.0000000000002247

View details for PubMedID 32084099

The American College of Critical Care Medicine Clinical Practice Parameters for Hemodynamic Support of Pediatric and Neonatal Septic Shock: Executive Summary PEDIATRIC CRITICAL CARE MEDICINE Davis, A. L., Carcillo, J. A., Aneja, R. K., Deymann, A. J., Lin, J. C., Nguyen, T. C., Okhuysen-Cawley, R. S., Relvas, M. S., Rozenfeld, R. A., Skippen, P. W., Stojadinovic, B. J., Williams, E. A., Yeh, T. S., Balamuth, F., Brierley, J., de Caen, A. R., Cheifetz, I. M., Choong, K., Conway, E., Cornell, T., Doctor, A., Dugas, M., Feldman, J. D., Fitzgerald, J. C., Flori, H. R., Fortenberry, J. D., Graciano, A., Greenwald, B. M., Hall, M. W., Han, Y., Hernan, L. J., Irazuzta, J. E., Iselin, E., van der Jagt, E. W., Jeffries, H. E., Kache, S., Katyal, C., Kissoon, N., Kon, A. A., Kutko, M. C., MacLaren, G., Maul, T., Mehta, R., Odetola, F., Parbuoni, K., Paul, R., Peters, M. J., Ranjit, S., Reuter-Rice, K. E., Schnitzler, E. J., Scott, H. F., Torres, A., Weingarten-Abrams, J., Weiss, S. L., Zimmerman, J. J., Zuckerberg, A. L. 2017; 18 (9): 88490

View details for PubMedID 28723883

American College of Critical Care Medicine Clinical Practice Parameters for Hemodynamic Support of Pediatric and Neonatal Septic Shock CRITICAL CARE MEDICINE Davis, A. L., Carcillo, J. A., Aneja, R. K., Deymann, A. J., Lin, J. C., Nguyen, T. C., Okhuysen-Cawley, R. S., Relvas, M. S., Rozenfeld, R. A., Skippen, P. W., Stojadinovic, B. T., Williams, E. A., Yeh, T. S., Balamuth, F., Brierley, J., de Caen, A. R., Cheifetz, I. M., Choong, K., Conway, E., Cornell, T., Doctor, A., Dugas, M., Feldman, J. D., Fitzgerald, J. C., Flori, H. R., Fortenberry, J. D., Graciano, A. L., Greenwald, B. M., Hall, M. W., Han, Y. Y., Hernan, L. J., Irazurta, J. E., Iselin, E., van der Jagt, E. W., Jeffries, H. E., Kache, S., Katyal, C., Kissoon, N. T., Kon, A. A., Kutko, M. C., MacLaren, G., Maul, T., Mehta, R., Odetola, F., Parbuoni, K., Paul, R., Peters, M. J., Ranjit, S., Reuter-Rice, K. E., Schnitzler, E. J., Scott, H. F., Torres, A., Weingarten-Abrams, J., Weiss, S. L., Zimmerman, J. J., Zuckerberg, A. L. 2017; 45 (6): 1061-1093

Abstract

The American College of Critical Care Medicine provided 2002 and 2007 guidelines for hemodynamic support of newborn and pediatric septic shock. Provide the 2014 update of the 2007 American College of Critical Care Medicine "Clinical Guidelines for Hemodynamic Support of Neonates and Children with Septic Shock."Society of Critical Care Medicine members were identified from general solicitation at Society of Critical Care Medicine Educational and Scientific Symposia (2006-2014). The PubMed/Medline/Embase literature (2006-14) was searched by the Society of Critical Care Medicine librarian using the keywords: sepsis, septicemia, septic shock, endotoxemia, persistent pulmonary hypertension, nitric oxide, extracorporeal membrane oxygenation, and American College of Critical Care Medicine guidelines in the newborn and pediatric age groups.The 2002 and 2007 guidelines were widely disseminated, translated into Spanish and Portuguese, and incorporated into Society of Critical Care Medicine and American Heart Association/Pediatric Advanced Life Support sanctioned recommendations. The review of new literature highlights two tertiary pediatric centers that implemented quality improvement initiatives to improve early septic shock recognition and first-hour compliance to these guidelines. Improved compliance reduced hospital mortality from 4% to 2%. Analysis of Global Sepsis Initiative data in resource rich developed and developing nations further showed improved hospital mortality with compliance to first-hour and stabilization guideline recommendations.The major new recommendation in the 2014 update is consideration of institution-specific use of 1) a "recognition bundle" containing a trigger tool for rapid identification of patients with septic shock, 2) a "resuscitation and stabilization bundle" to help adherence to best practice principles, and 3) a "performance bundle" to identify and overcome perceived barriers to the pursuit of best practice principles.

View details for DOI 10.1097/CCM.0000000000002425

View details for PubMedID 28509730