Andrew W Shaffer

2025

Clinical Outcomes With Normothermic Pulsatile Organ Perfusion in Heart Transplantation: A Report From the OCS Heart Perfusion Registry

Stehlik, J., Farr, M. A., Mehra, M. R., Schroder, J. N., D’Alessandro, D. A., Pal, J. D., Villavicencio, M. A., Gruber, P. J., Couper, G. S., Shudo, Y., Patel, P. C., Daneshmand, M. A., Klein, L., Shah, A. S., Skipper, E. R., Esmailian, F., Goldstein, D., Ohira, S., Lozonschi, L. & Kaczorowski, D. J. & 22 others, Takeda, K., Malyala, R. S. R., Haft, J. W., Meyer, D. M., Sun, B. C., Pretorius, V., Kilic, A., Anyanwu, A. C., Williams, C. T., Pham, D. T., Kai, M., Sulemanjee, N. Z., Itoh, A., Funamoto, M., Salerno, C. T., Ikonomidis, J. S., Durham, L. A., Shaffer, A., Zhou, X., Zafar, F., Pinney, S. P. & Milano, C. A., Apr 1 2025, In: Circulation. 151, 13, p. 896-909 14 p.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Persistent Hypoxemia Following Redo Tricuspid Valve Surgery: A Vicious Cycle of Shunting

Abdallah, N., Rivard, M., Shapiro, R., Simegn, M. A., Shaffer, A. & Shroff, G. R., 2025, (Accepted/In press) In: Canadian Journal of Cardiology.

Research output: Contribution to journal › Article › peer-review

2024

A Multi-Center International Analysis of Lung Transplantation Outcomes in Patients With COVID-19

Kashem, M. A., Loor, G., Emtiazjoo, A., Hartwig, M., Van Raemdonck, D., Calvelli, H., Leon Pena, A., Salan-Gomez, M., Zhao, H., Warnick, M., Villavicencio, M., Ius, F., Ghadimi, K., Salman, J., Chandrashekaran, S., Machuca, T., Sanchez, P. G., Subramaniam, K., Neyrinck, A. & Huddleston, S. & 7 others, Ceulemans, L., Osho, A., D'Silva, E., Ramamurthy, U., Shaffer, A., Langer, N. & Toyoda, Y., Sep 2024, In: Clinical Transplantation. 38, 9, e15462.

Research output: Contribution to journal › Article › peer-review

Clinico-histopathological correlation in cardiac rhabdomyoma

Arriola-Montenegro, J., Shaffer, A., Amin, K. & Maharaj, V., Nov 1 2024, In: European heart journal cardiovascular Imaging. 25, 11, p. e267

Research output: Contribution to journal › Article › peer-review

End-stage congestive heart failure in the adult population: Ventricular assist devices

Shaffer, A., Liao, K. K. & John, R., Dec 8 2024, Handbook of Cardiac Anatomy, Physiology, and Devices: Fourth Edition. Springer Nature, p. 935-945 11 p.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Impact of left ventricular assist device complications on heart transplant outcomes under the 2018 heart transplant allocation policy

Siems, C., Cogswell, R., Masotti, M., Schultz, J., Cowger, J., Shaffer, A. & John, R., Mar 2024, In: Journal of Thoracic and Cardiovascular Surgery. 167, 3, p. 1049-1059.e5

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

The Adherence to an Intraoperative Blood Product Transfusion Algorithm Is Associated With Reduced Blood Product Transfusions in Cardiac Surgical Patients Undergoing Coronary Artery Bypass Grafts and Aortic and/or Valve Replacement Surgery: A Single-Center, Observational Study

Lanigan, M., Siers, D., Schramski, M., Shaffer, A., John, R., Knoper, R., Huddleston, S., Gunn-Sandell, L., Kaizer, A. & Perry, T. E., May 2024, In: Journal of Cardiothoracic and Vascular Anesthesia. 38, 5, p. 1135-1143 9 p.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Validation of the Minnesota Pectoralis Risk Score to predict mortality in the HeartMate 3 population

Siems, C. B., Ji, Z., Jedeon, Z., Schultz, J., Teigen, L., Allen, T., John, R., Estep, J. D., Masotti, M., Alexy, T., Kamdar, F., Maharaj, V., Pritzker, M., Garry, D., Shaffer, A. & Cogswell, R., Apr 2024, In: Journal of Heart and Lung Transplantation. 43, 4, p. 539-546 8 p.

Research output: Contribution to journal › Article › peer-review

Valvular heart disease

Polycarpou, A. & Shaffer, A., Dec 8 2024, Handbook of Cardiac Anatomy, Physiology, and Devices: Fourth Edition. Springer Nature, p. 745-772 28 p.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Ventricular septal defect following mitral valve replacement

Arriola-Montenegro, J., Tandon, R., Shaffer, A. & Nijjar, P. S., Feb 1 2024, In: European Journal of Cardio-thoracic Surgery. 65, 2, ezae029.

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

2023

Acute Kidney Injury in Patients Undergoing Surgery for Type A Acute Aortic Dissection

Arnaoutakis, G. J., Ogami, T., Patel, H. J., Pai, C. W., Woznicki, E. M., Brinster, D. R., Leshnower, B. G., Serna-Gallegos, D., Bekeredjian, R., Sundt, T. M., Shaffer, A. W., Peterson, M. D., Geuzebroek, G. S. C., Eagle, K. A., Trimarchi, S. & Sultan, I., Apr 2023, In: Annals of Thoracic Surgery. 115, 4, p. 879-885 7 p.

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Body mass index and natriuretic peptides trends before and after left ventricular assist device

Schultz, J., Vest, A. R., Masotti, M., Hoeg, A., Teigen, L., John, R., Shaffer, A., Alexy, T., Martin, C. & Cogswell, R., Jan 1 2023, In: JCSM Rapid Communications. 6, 1, p. 42-49

Research output: Contribution to journal › Article › peer-review

Open Access

Initial hospital length of stay and long-term survival of patients successfully resuscitated using extracorporeal cardiopulmonary resuscitation for refractory out-of-hospital cardiac arrest

Alexy, T., Kalra, R., Kosmopoulos, M., Bartos, J. A., Elliott, A., Bernal, A. G., Martin, C. M., John, R., Shaffer, A. W., Raveendran, G., Tsangaris, A. & Yannopoulos, D., Mar 1 2023, In: European Heart Journal: Acute Cardiovascular Care. 12, 3, p. 175-183 9 p.

Research output: Contribution to journal › Article › peer-review

Open Access

11 Scopus citations

Outcomes of Patients Referred for Cardiac Rehabilitation after Left Ventricular Assist Device Implantation

Shaaban, A., Schultz, J., Leonard, J., Martin, C. M., Kamdar, F., Alexy, T., Thenappan, T., Pritzker, M., Shaffer, A., John, R. & Cogswell, R., Mar 1 2023, In: ASAIO Journal. 69, 3, p. 304-308 5 p.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Overestimation of Renal Function Using Serum Creatinine in the Advanced Heart Failure Population: A Call for Alternative Measures

JEDEON, Z., MASOTTI, M., SCHULTZ, J., VEST, A. R., ALEXY, T., Pritzker, M., MAHARAJ, V., KAMDAR, F., Knopper, R., SHAFFER, A., JOHN, R. & COGSWELL, R., Jan 2023, In: Journal of cardiac failure. 29, 1, p. 116-118 3 p.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Right heart failure after left ventricular assist device implantation: a persistent problem

Siems, C., Aggarwal, R., Shaffer, A. & John, R., Jul 2023, In: Indian Journal of Thoracic and Cardiovascular Surgery. 39, p. 161-169 9 p.

Research output: Contribution to journal › Review article › peer-review

Open Access

4 Scopus citations

Transplantation Outcomes with Donor Hearts after Circulatory Death.

Schroder, J. N., Patel, C. B., Devore, A. D., Bryner, B. S., Casalinova, S., Shah, A., Smith, J. W., Fiedler, A. G., Daneshmand, M., Silvestry, S., Geirsson, A., Pretorius, V., Joyce, D. L., Um, J. Y., Esmailian, F., Takeda, K., Mudy, K., Shudo, Y., Salerno, C. T. & Pham, S. M. & 20 others, Goldstein, D. J., Philpott, J., Dunning, J., Lozonschi, L., Couper, G. S., Mallidi, H. R., Givertz, M. M., Pham, D. T., Shaffer, A. W., Kai, M., Quader, M. A., Absi, T., Attia, T. S., Shukrallah, B., Sun, B. C., Farr, M., Mehra, M. R., Madsen, J. C., Milano, C. A. & D'alessandro, D. A., 2023, In: New England Journal of Medicine. 388, 23, p. 2121-2131 11 p.

Research output: Contribution to journal › Article › peer-review

158 Scopus citations

2022

A retrospective study on the trends in surgical aortic valve replacement outcomes in the post-transcatheter aortic valve replacement era

Chahine, J., Jedeon, Z. A., Fiocchi, J., Shaffer, A., Knoper, R., John, R., Yannopoulos, D., Raveendran, G. & Gurevich, S., May 2022, In: Health Science Reports. 5, 3, e660.

Research output: Contribution to journal › Article › peer-review

Open Access

2 Scopus citations

Axillary or Subclavian Impella 5.0 Support in Cardiogenic Shock: A Systematic Review and Meta-analysis

Schultz, J., Duval, S., Shaffer, A., John, R., Alexy, T., Martin, C. M. & Cogswell, R., Feb 1 2022, In: ASAIO Journal. 68, 2, p. 233-238 6 p.

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Hypotension on cardiopulmonary stress test predicts 90 day mortality after LVAD implantation in INTERMACS 3–6 patients

Maharaj, V., Agdamag, A. C. C., Duval, S., Edmiston, J., Charpentier, V. R., Fraser, M., Hall, A., Schultz, J. N., John, R., Shaffer, A., Martin, C. M., Thenappan, T., Francis, G. S., Cogswell, R. & Alexy, T., Oct 2022, In: ESC Heart Failure. 9, 5, p. 3496-3504 9 p.

Research output: Contribution to journal › Article › peer-review

Open Access

1 Scopus citations

Rapidly Progressive and Catastrophic Calciphylaxis After Mechanical Valve Replacement: An Anticoagulation Dilemma

Nyembo, P. F., Eidman, K. E., Simegn, M. A., Shaffer, A. W. & Shroff, G. R., Oct 5 2022, In: JACC: Case Reports. 4, 19, p. 1319-1323 5 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2 Scopus citations

The Use of a Viscoelastic-Based Transfusion Algorithm Significantly Reduces Non–red Blood Cell Transfusion in Patients Undergoing Left Ventricular Assist Device Placement or Heart Transplantation: A Single-Center Observational Study

Lanigan, M., Siers, D., Wilkey, A., Barakat, A., Shaffer, A., John, R., Knoper, R., Huddleston, S., Kaizer, A. & Perry, T. E., Aug 2022, In: Journal of Cardiothoracic and Vascular Anesthesia. 36, 8 Pt B, p. 3038-3046 9 p.

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

UTILIZATION OF COMPUTATIONAL MODELING AND 3D PRINTING FOR PREPROCEDURAL PLANNING OF AN LVAD EXCHANGE SURGERY

DeVos, A. N., Ramirez, D. A., Gonzalez, C., Shaffer, A. & Iaizzo, P. A., 2022, Proceedings of the 2022 Design of Medical Devices Conference, DMD 2022. American Society of Mechanical Engineers, V001T02A008. (Proceedings of the 2022 Design of Medical Devices Conference, DMD 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2021

First Successful LVAD Implantation After BioVentrix Revivent TC Ventricular Reshaping

Agdamag, A. C., Shaffer, A., John, R., Wechsler, A. S., Pritzker, M., Fraser, M., Martin, C. M., Cogswell, R. & Alexy, T., Aug 1 2021, In: Annals of Thoracic Surgery. 112, 2, p. e123-e126

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Future developments in left ventricular assist device therapy

Shaffer, A., Cogswell, R. & John, R., Aug 1 2021, In: Journal of Thoracic and Cardiovascular Surgery. 162, 2, p. 605-611 7 p.

Research output: Contribution to journal › Editorial › peer-review

Open Access

10 Scopus citations

Hemodynamic Characteristics and Outcomes of Pulmonary Hypertension in Patients Undergoing Tricuspid Valve Repair or Replacement

Vijayaraghavan, M., Prins, K. W., Prisco, S. Z., Duval, S., John, R., Archer, S. L., Weir, E. K., Voeller, R., Shaffer, A. W. & Thenappan, T., Apr 2021, In: CJC Open. 3, 4, p. 488-497 10 p.

Research output: Contribution to journal › Article › peer-review

Open Access

6 Scopus citations

Patients treated with venoarterial extracorporeal membrane oxygenation have different baseline risk and outcomes dependent on indication and route of cannulation

Kosmopoulos, M., Bartos, J. A., Kalra, R., Goslar, T., Carlson, C., Shaffer, A., John, R., Kelly, R., Raveendran, G., Brunsvold, M., Chipman, J., Beilman, G. & Yannopoulos, D., Jan 1 2021, In: Hellenic Journal of Cardiology. 62, 1, p. 38-45 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

7 Scopus citations

Rapidly Progressive Left Ventricular Assist Device Outflow Graft Thrombosis Associated with COVID-19 Infection

Maharaj, V., Steiner, M., Boyle, B., Kazmirczak, F., Markowitz, J. S., Alexy, T., Shaffer, A., John, R., Martin, C. M., Cogswell, R. & Kamdar, F., Dec 1 2021, In: Circulation: Heart Failure. 14, 12, p. E008334

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

2020

Advanced reperfusion strategies for patients with out-of-hospital cardiac arrest and refractory ventricular fibrillation (ARREST): a phase 2, single centre, open-label, randomised controlled trial

Yannopoulos, D., Bartos, J., Raveendran, G., Walser, E., Connett, J., Murray, T. A., Collins, G., Zhang, L., Kalra, R., Kosmopoulos, M., John, R., Shaffer, A., Frascone, R., Wesley, K., Conterato, M., Biros, M., Tolar, J. & Aufderheide, T. P., Dec 5 2020, In: The Lancet. 396, 10265, p. 1807-1816 10 p.

Research output: Contribution to journal › Article › peer-review

Open Access

710 Scopus citations

All Left Ventricular Device Bridges Can Lead to a Heart Transplant

Shaffer, A. & John, R., Apr 1 2020, In: ASAIO Journal. 66, 4, p. 399-400 2 p.

Research output: Contribution to journal › Comment/debate › peer-review

Open Access

Computationally sizing a left ventricular assist device graft: A preprocedural tool to improve surgical outcomes

Ramirez, D. A., Holm, M. A., Shaffer, A. & Iaizzo, P. A., 2020, Frontiers in Biomedical Devices, BIOMED - 2020 Design of Medical Devices Conference, DMD 2020. American Society of Mechanical Engineers (ASME), (Frontiers in Biomedical Devices, BIOMED - 2020 Design of Medical Devices Conference, DMD 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Echocardiographic evaluation of cardiac recovery after refractory out-of-hospital cardiac arrest

Kalra, R., Bartos, J. A., Kosmopoulos, M., Carlson, C., John, R., Shaffer, A., Martin, C., Raveendran, G. & Yannopoulos, D., Sep 2020, In: Resuscitation. 154, p. 38-46 9 p.

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Higher Body Mass Index is Associated with End Stage Renal Failure after Left Ventricular Assist Device Implantation

Maharaj, V., Schultz, J., Charpentier, V., Duval, S., John, R., Shaffer, A., Pritzker, M., Martin, C. M., Thenappan, T., Cogswell, R. & Alexy, T., Apr 1 2020, p. S410.

Research output: Contribution to conference › Abstract › peer-review

Lung allocation pipeline: Machine learning approach to optimized lung transplant

Schinstock, E., Deakyne, A., Iles, T., Shaffer, A. & Iaizzo, P. A., 2020, Frontiers in Biomedical Devices, BIOMED - 2020 Design of Medical Devices Conference, DMD 2020. American Society of Mechanical Engineers (ASME), (Frontiers in Biomedical Devices, BIOMED - 2020 Design of Medical Devices Conference, DMD 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Multimodal functional and still imaging of a transplanted human heart reanimated using Visible Heart® methodologies

Bateman, M. G., Iles, T. L., Quallich, S. G., Shaffer, A. W. & Iaizzo, P. A., Mar 1 2020, In: Journal of Cardiac Surgery. 35, 3, p. 668-671 4 p.

Research output: Contribution to journal › Article › peer-review

Open Access

1 Scopus citations

Need for tracheostomy after lung transplant predicts decreased mid- and long-term survival

Huddleston, S. J., Brown, R., Rudser, K., Goswami, U., Tomic, R., Lemke, N. T., Shaffer, A. W., Soule, M., Hertz, M., Shumway, S., Kelly, R. & Loor, G., Jan 1 2020, In: Clinical Transplantation. 34, 1, e13766.

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Right Ventricular Failure After Left Ventricular Assist Device

Cogswell, R., John, R. & Shaffer, A., May 2020, In: Cardiology Clinics. 38, 2, p. 219-225 7 p.

Research output: Contribution to journal › Review article › peer-review

21 Scopus citations

Separate Effect of Perioperative Recombinant Human Factor VIIa Administration and Packed Red Blood Cell Transfusions on Midterm Survival in Lung Transplantation Recipients

Huddleston, S. J., Jackson, S., Kane, K., Lemke, N., Shaffer, A. W., Soule, M., Hertz, M., Shumway, S., Qi, S., Perry, T. & Kelly, R., Nov 2020, In: Journal of Cardiothoracic and Vascular Anesthesia. 34, 11, p. 3013-3020 8 p.

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Short-term mechanical circulatory support: Transitioning the patient to the next stage

Qi, S. S., Shaffer, A. W., Cogswell, R. & John, R., Jun 2020, In: JTCVS Open. 2, p. 29-34 6 p.

Research output: Contribution to journal › Editorial › peer-review

Open Access

3 Scopus citations

Viral Myocarditis—Incidence, Diagnosis and Management

Olejniczak, M., Schwartz, M., Webber, E., Shaffer, A. & Perry, T. E., Jun 2020, In: Journal of Cardiothoracic and Vascular Anesthesia. 34, 6, p. 1591-1601 11 p.

Research output: Contribution to journal › Review article › peer-review

104 Scopus citations

2019

Cross-circulation and the Early Days of Cardiac Surgery

Gott, V. L., Moller, J. H., Shaffer, A. W. & Shumway, S. J., Mar 1 2019, In: Annals of surgery. 269, 3, p. 443-445 3 p.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

2018

A new era for improving cardiothoracic transplantations

Shaffer, A. W., Mattison, L. M., Spratt, J. R., Iles, T. L., Kerns, N., Bateman, M. G., Huddleston, S. J., Kelly, R. F., John, R., Liao, K. K. & Iaizzo, P. A., Jan 1 2018, Engineering in Medicine: Advances and Challenges. Elsevier, p. 55-82 28 p.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Cerebral oxygenation of premature lambs supported by an artificial placenta

El-Sabbagh, A. M., Gray, B. W., Shaffer, A. W., Bryner, B. S., Church, J. T., McLeod, J. S., Zakem, S., Perkins, E. M., Shellhaas, R. A., Barks, J. D. E., Rojas-Peña, A., Bartlett, R. H. & Mychaliska, G. B., 2018, In: ASAIO Journal. 64, 4, p. 552-556 5 p.

Research output: Contribution to journal › Article › peer-review

Open Access

18 Scopus citations

To clip, or not to clip? Prophylactic left atrial appendage ligation should be performed in patients with, or at risk for, atrial fibrillation

Shaffer, A. W. & Shumway, S. J., Sep 2018, In: Journal of Thoracic and Cardiovascular Surgery. 156, 3, p. 1069-1070 2 p.

Research output: Contribution to journal › Editorial › peer-review

Open Access

2015

Evaluation of optimal RNA extraction method from human carotid atherosclerotic plaque

Ahmed, S., Shaffer, A., Geddes, T., Studzinski, D., Mitton, K., Pruetz, B., Long, G. & Shanley, C., May 1 2015, In: Cardiovascular Pathology. 24, 3, p. 187-190 4 p., 6818.

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

2014

No evidence of facilitation between invasive Rhamnus cathartica (European buckthorn) and invasive earthworms in west central Minnesota

Wyckoff, P. H., Hucka, B., Shaffer, A., Bombyk, M. & Wipf, A., 2014, In: Pedobiologia. 57, 4-6, p. 311-317 7 p.

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

2013

Use of a low-resistance compliant thoracic artificial lung in the pulmonary artery to pulmonary artery configuration

Scipione, C. N., Schewe, R. E., Koch, K. L., Shaffer, A. W., Iyengar, A. & Cook, K. E., Jun 2013, In: Journal of Thoracic and Cardiovascular Surgery. 145, 6, p. 1660-1666 7 p.

Research output: Contribution to journal › Article › peer-review

Open Access

8 Scopus citations

2012

Advances in Neonatal Extracorporeal Support. The Role of Extracorporeal Membrane Oxygenation and the Artificial Placenta

Gray, B. W., Shaffer, A. W. & Mychaliska, G. B., Jun 2012, In: Clinics in Perinatology. 39, 2, p. 311-329 19 p.

Research output: Contribution to journal › Review article › peer-review

15 Scopus citations

2004

Comparison study of the solution phase versus solid phase place exchange reactions in the controlled functionalization of gold nanoparticles

Shaffer, A. W., Worden, J. G. & Huo, Q., Sep 14 2004, In: Langmuir. 20, 19, p. 8343-8351 9 p.

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Controlled functionalization of gold nanoparticles through a solid phase synthesis approach

Worden, J. G., Shaffer, A. W. & Huo, Q., 2004, In: Chemical Communications. 4, 5, p. 518-519 2 p.

Research output: Contribution to journal › Article › peer-review

118 Scopus citations

Andrew W Shaffer

Research output

Search results