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1,087 results on '"Jeevanandam, Valluvan"'

3. Summary of a consensus conference on heart-liver transplantation

Author

Kobashigawa, Jon, VanWagner, Lisa B., Hall, Shelley, Ardehali, Abbas, Baran, David, Bhimaraj, Arvind, Bonham, Clark Andrew, Breda, Joao Roberto, Chen, Sharon, Czer, Lawrence, Alessandro, David D', Daugherty, Tami, De Marco, Teresa, Emamaullee, Juliet, Emerson, Dominic, Entwistle, John W., Esmailian, Fardad, Estep, Jerry, Gaber, Osama, Ganger, Daniel, Gebel, Howard, Ebel, Noelle Hanako, Harmath, Carla, Heimbach, Julie, Izzy, Manhal, Jackson, Annette, Jeevanandam, Val, Kahn, Jeffrey, Kaldas, Fady, Kamath, Patrick, Kilic, Ahmet, Kittleson, Michelle, Kuo, Alex, Kushwaha, Sudhir, Kwong, Allison, Lewis, Matthew, Loebe, Matthias, Lui, George, Madsen, Joren, McLean, Rhondalyn, Menachem, Jonathan, Mobley, Constance, Mufti, Arji, Patel, Jignesh, Pereira, Naveen, Pinney, Sean, Potter, Lisa, Sack, Jordan, Sahota, Amandeep, Schiano, Thomas D., Schlendorf, Kelly, Shingina, Alexandra, Takeda, Koji, Taner, Timucin, Te, Helen, Teuteberg, Jeffrey, Tompkins, Rose, Verna, Betsy, Wall, Anji, Jeevanandam, Valluvan, Lui, George K., Motayagheni, Negar, Patel, Nikhil, and Sani, Maryam

Published
2024
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6. Estimation of Central Venous Pressure by Pacemaker Lead Impedances in Left Ventricular Assist Device Patients.

Author

Imamura, Teruhiko, Moss, Joshua D, Flatley, Erin, Rodgers, Daniel, Kim, Gene, Raikhelkar, Jayant, Sarswat, Nitasha, Kalantari, Sara, Nguyen, Ann, Juricek, Colleen, Burkhoff, Daniel, Song, Tae, Ota, Takeyoshi, Jeevanandam, Valluvan, Sayer, Gabriel, and Uriel, Nir

Subjects
Engineering, Biomedical Engineering, Heart Disease, Bioengineering, Clinical Research, Cardiovascular, Aged, Central Venous Pressure, Cohort Studies, Electric Impedance, Female, Heart Failure, Heart Ventricles, Heart-Assist Devices, Hemodynamics, Humans, Male, Mathematical Concepts, Middle Aged, Pacemaker, Artificial, Biomedical engineering
Abstract

Volume status assessment in left ventricular assist device (LVAD) patients remains challenging. Cardiac resynchronization therapy (CRT) devices are common in LVAD patients, and the impedance across the CRT leads may be associated with hemodynamics and serve as a tool for noninvasive estimation of volume status. Ninety-one sets of measurements including cardiac filling pressures and lead impedances were prospectively obtained during ramp tests from 11 LVAD patients (65.5 ± 9.7 years old; nine male) with CRT devices. Right atrial (RA), right ventricular (RV), and left ventricular (LV) lead impedances were all significantly associated with central venous pressure (CVP) (p < 0.05). We derived the following equation: estimated CVP = 47.90-(0.086 × RA lead impedance) + (0.013 × RV lead impedance)-(0.020 × LV lead impedance). The estimated CVP had a significant correlation (r = 0.795) and good agreement with the measured CVP (mean difference -0.14 ± 1.77 mmHg). Applying the above equation on the validation cohort of twenty-one patients also maintained a strong association with measured CVP (r = 0.705). In conclusion, we have derived a novel equation to estimate CVP using lead impedance measurements. This finding may allow noninvasive monitoring of volume status in LVAD patients.

Published
2020

15. Native Aortic Valve Endocarditis Caused by Scopulariopsis Species: Case Report, Considerations for Management, and Review of Literature.

Author

Imam, Sabrina, Kaperak, Christopher J, Hozain, Ahmed E, Qin, Hecong, Nguyen, Cynthia T, Sudhindra, Praveen, Jeevanandam, Valluvan, and Landon, Emily

Subjects
LITERATURE reviews, AORTIC valve, ENDOCARDITIS, INFECTIVE endocarditis, FUNGI, SURGERY
Abstract

We present the first case of native aortic valve endocarditis caused by Scopulariopsis. Intraoperative images and videos from valve replacement surgery illustrate the severity of fungal endocarditis. This case demonstrates the aggressive presentation of left-sided fungal endocarditis, highlights challenges with treating highly resistant fungi, and considers the potential utility of olorofim. [ABSTRACT FROM AUTHOR]

Published
2024
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22. Transcatheter Aortic Valve Replacement in Left Ventricular Assist Device Patients with Aortic Regurgitation

Author

Belkin, Mark N., Imamura, Teruhiko, Fujino, Takeo, Kanelidis, Anthony J., Holzhauser, Luise, Ebong, Imo, Narang, Nikhil, Blair, John E., Nathan, Sandeep, Paul, Jonathan D., Shah, Atman P., Chung, Ben Bow, Nguyen, Ann, Smith, Bryan, Kalantari, Sara, Raikhelkar, Jayant, Ota, Takeyoshi, Jeevanandam, Valluvan, Kim, Gene, Burkhoff, Daniel, Sayer, Gabriel, and Uriel, Nir

Published
2020
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24. Hemodynamic Assessment Of Dynamic Left Ventricular Coupling And Myocardial Reserve Improves Risk Stratification In Patients With Decompensated Heart Failure And Cardiogenic Shock

Author

Kanelidis, Anthony, primary, Randazzo, Michael, additional, Kalantari, Sara, additional, Smith, Bryan, additional, Nguyen, Ann, additional, Chung, Ben Bow, additional, Sarswat, Nitasha, additional, Salerno, Christopher, additional, Jeevanandam, Valluvan, additional, Kim, Gene, additional, Belkin, Mark, additional, and Grinstein, Jonathan, additional

Published
2024
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28. Urine Biomarkers and Perioperative Acute Kidney Injury: The Impact of Preoperative Estimated GFR

Author

Koyner, Jay L, Coca, Steven G, Thiessen-Philbrook, Heather, Patel, Uptal D, Shlipak, Michael G, Garg, Amit X, Parikh, Chirag R, Consortium, Translational Research Investigating Biomarker Endpoints for Acute Kidney Injury, Raman, Jai, Jeevanandam, Valluvan, Akhter, Shahab, Devarajan, Prasad, Bennett, Michael, Ma, Qing, Griffiths, Rachel, Edelstein, Charles, Passik, Cary, Nagy, Judy, Swaminathan, Madhav, Chu, Michael, Goldbach, Martin, Guo, Lin Ruo, McKenzie, Neil, Myers, Mary Lee, Novick, Richard, Quantz, Mac, Schumann, Virginia, Webster, Laura, Zappitelli, Michael, Palijan, Ana, Dewar, Michael, Darr, Umer, Hashim, Sabet, Elefteriades, John, Geirsson, Arnar, Garwood, Susan, Kemp, Rowena, and Butrymowicz, Isabel

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Kidney Disease, Clinical Research, Renal and urogenital, Acute Kidney Injury, Aged, Aged, 80 and over, Biomarkers, Cardiac Surgical Procedures, Cohort Studies, Creatinine, Cystatin C, Female, Glomerular Filtration Rate, Humans, Male, Middle Aged, Postoperative Complications, Prospective Studies, Urine biomarkers, interleukin 18, liver-type fatty acid binding protein, acute renal failure, acute kidney injury, perioperative AKI, effect modification, estimated glomerular filtration rate, prognosis, cardiac surgery, surgical complication, Translational Research Investigating Biomarker Endpoints for Acute Kidney Injury (TRIBE-AKI) Consortium, Translational Research Investigating Biomarker Endpoints for Acute Kidney Injury TRIBE-AKI Consortium, Public Health and Health Services, Urology & Nephrology, Clinical sciences
Abstract

BackgroundThe interaction between baseline kidney function and the performance of biomarkers of acute kidney injury (AKI) on the development of AKI is unclear.Study designPost hoc analysis of prospective cohort study.Setting & participantsThe 1,219 TRIBE-AKI Consortium adult cardiac surgery cohort participants.PredictorUnadjusted postoperative urinary biomarkers of AKI measured within 6 hours of surgery.OutcomeAKI was defined as AKI Network stage 1 (any AKI) or higher, as well as a doubling of serum creatinine level from the preoperative value or the need for post-operative dialysis (severe AKI).MeasurementsStratified analyses by preoperative estimated glomerular filtration rate (eGFR) ≤ 60 versus > 60mL/min/1.73m(2).Results180 (42%) patients with preoperative eGFRs≤60mL/min/1.73m(2) developed clinical AKI compared with 246 (31%) of those with eGFRs>60mL/min/1.73m(2) (P

Published
2015

33. Impact of Implantable Transvenous Device Lead Location on Severity of Tricuspid Regurgitation

Author

Addetia, Karima, Maffessanti, Francesco, Mediratta, Anuj, Yamat, Megan, Weinert, Lynn, Moss, Joshua D, Nayak, Hemal M, Burke, Martin C, Patel, Amit R, Kruse, Eric, Jeevanandam, Valluvan, Mor-Avi, Victor, and Lang, Roberto M

Subjects
Biomedical and Clinical Sciences, Cardiovascular Medicine and Haematology, Clinical Sciences, Bioengineering, Heart Disease, Cardiovascular, Adult, Aged, Echocardiography, Electrodes, Implanted, Female, Humans, Male, Middle Aged, Reproducibility of Results, Sensitivity and Specificity, Severity of Illness Index, Tricuspid Valve Insufficiency, Veins, Ventricular Dysfunction, Left, Intracardiac defibrillator, Pacemaker, Three-dimensional echocardiography, Tricuspid regurgitation, Cardiorespiratory Medicine and Haematology, Cardiovascular System & Hematology, Cardiovascular medicine and haematology
Abstract

BackgroundImplantable device leads can cause tricuspid regurgitation (TR) when they interfere with leaflet motion. The aim of this study was to determine whether lead-leaflet interference is associated with TR severity, independent of other causative factors of functional TR.MethodsA total of 100 patients who underwent transthoracic two-dimensional and three-dimensional (3D) echocardiography of the tricuspid valve before and after lead placement were studied. Lead position was classified on 3D echocardiography as leaflet-interfering or noninterfering. TR severity was estimated by vena contracta (VC) width. Logistic regression analysis was used to identify factors associated with postdevice TR, including predevice VC width, right ventricular end-diastolic and end-systolic areas, fractional area change, right atrial size, tricuspid annular diameter, TR gradient, device lead age, and presence or absence of lead interference. Odds ratios were used to describe the association with moderate (VC width ≥ 0.5 cm) or severe (VC width ≥ 0.7 cm) TR, separately, using bivariate and stepwise multivariate logistic regression analysis.ResultsForty-five of 100 patients showed device lead tricuspid valve leaflet interference. The septal leaflet was the most commonly affected (23 patients). On bivariate analysis, preimplantation VC width, right atrial size, tricuspid annular diameter, and lead-leaflet interference were significantly associated with postdevice TR. On multivariate analysis, preimplantation VC width and the presence of an interfering lead were independently associated with postdevice TR. Furthermore, the presence of an interfering lead was the only factor associated with TR worsening, increasing the likelihood of developing moderate or severe TR by 15- and 11-fold, respectively.ConclusionLead-leaflet interference as seen on 3D echocardiography is associated with TR after device lead placement, suggesting that 3D echocardiography should be used to assess for lead interference in patients with significant TR.

Published
2014

42. Decoupling Between Diastolic Pulmonary Arterial Pressure and Pulmonary Arterial Wedge Pressure at Incremental Left Ventricular Assist Device (LVAD) Speeds Is Associated With Worse Prognosis After LVAD Implantation

Author

Imamura, Teruhiko, Kim, Gene, Raikhelkar, Jayant, Sarswat, Nitasha, Kalantari, Sara, Smith, Bryan, Rodgers, Daniel, Chung, Ben, Nguyen, Ann, Ota, Takeyoshi, Song, Tae, Juricek, Colleen, Jeevanandam, Valluvan, Burkhoff, Daniel, Sayer, Gabriel, and Uriel, Nir

Published
2018
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44. HVAD: The ENDURANCE Supplemental Trial

Author

Milano, Carmelo A., Rogers, Joseph G., Tatooles, Antone J., Bhat, Geetha, Slaughter, Mark S., Birks, Emma J., Mokadam, Nahush A., Mahr, Claudius, Miller, Jeffrey S., Markham, David W., Jeevanandam, Valluvan, Uriel, Nir, Aaronson, Keith D., Vassiliades, Thomas A., and Pagani, Francis D.

Published
2018
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46. Cannula and Pump Positions Are Associated With Left Ventricular Unloading and Clinical Outcome in Patients With HeartWare Left Ventricular Assist Device

Author

Imamura, Teruhiko, Adatya, Sirtaz, Chung, Ben, Nguyen, Ann, Rodgers, Daniel, Sayer, Gabriel, Sarswat, Nitasha, Kim, Gene, Raikhelkar, Jayant, Ota, Takeyoshi, Song, Tae, Juricek, Colleen, Medvedofsky, Diego, Jeevanandam, Valluvan, Lang, Roberto, Estep, Jerry D., Burkhoff, Daniel, and Uriel, Nir

Published
2018
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