1
|
Silber HA, Gilotra NA, Miller TL. Noninvasive Point of Care Device for Assessing Cardiac Response to Acute Volume Changes. MEDICAL DEVICES-EVIDENCE AND RESEARCH 2023; 16:219-227. [PMID: 37908436 PMCID: PMC10614661 DOI: 10.2147/mder.s416845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 10/04/2023] [Indexed: 11/02/2023] Open
Abstract
Purpose The change in the amplitude of a peripheral pulse in response to a Valsalva maneuver has diagnostic utility for assessing volume status at the bedside. We have developed a device to automatically quantify the Valsalva pulse response (VPR) to a standardized Valsalva maneuver that the device guides a user to perform. In this study, we sought to determine whether VPR by the device, Indicor, is sensitive enough to detect the acute increase in central pressure and volume load that occurs with a passive leg raise (PLR) in healthy volunteers. Methods Healthy volunteers were tested semirecumbently at 45 degrees, then again after being leaned back on a pivoted wedge with legs raised at 45 degrees and torso and head flat, and then again in the semirecumbent position. The device recorded a finger photoplethysmography (PPG) signal during a 10-second expiratory effort of 20 mmHg as guided by the device. VPR was automatically calculated as the ratio of the end-Valsalva pulse amplitude to the baseline pulse amplitude. Results In the 30 participants who completed testing, VPR increased from baseline to PLR in every participant, from 0.34 ± 0.13 to 0.60 ± 0.14 (p < 0.0001). Back upright, VPR decreased back to 0.33 ± 0.10 (p < 0.0001 versus PLR; NS versus baseline position). Conclusion In this proof-of-concept study of healthy participants, the Indicor device, a noninvasive, convenient device that automatically calculates VPR from a finger photoplethysmography signal during a standardized Valsalva maneuver, was sensitive enough to detect the increase in VPR that occurred with an acute central volume load from a PLR. Future studies should examine whether VPR responds differently to a PLR in heart failure patients with abnormal cardiac performance and/or congestion.
Collapse
Affiliation(s)
- Harry A Silber
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nisha A Gilotra
- Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Thomas L Miller
- Enalare Therapeutics, Inc, Princeton, NJ, USA
- Department of Pediatrics, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| |
Collapse
|
2
|
Bel Haj Ali K, Sekma A, Chamtouri I, Beltaief K, Msolli MA, Mezgar Z, Bouida W, Boukef R, Boubaker H, Grissa MH, Nouira S. Pulse amplitude ratio under noninvasive ventilation as a new method in the diagnosis of left heart failure in patients with acute exacerbation of chronic obstructive pulmonary disease. BMC Cardiovasc Disord 2023; 23:105. [PMID: 36829108 PMCID: PMC9951466 DOI: 10.1186/s12872-023-03089-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 01/24/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND Left heart failure (LHF) is commonly associated with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) but its role is often underestimated. AIM OF STUDY To evaluate the performance of a new diagnostic technique based on the measurement of the pulse amplitude ratio (PAR) using non-invasive ventilation (NIV) for the early identification LHF in patients admitted to the emergency department (ED) for AECOPD. RESULTS 73 patients were included in this study: 32 in LHF group and 41 in non LHF- group. The two groups had comparable demographic and clinical characteristics at admission. The mean values of PARNIV was significantly higher among LHF patients (0.86 vs. 0.71; p < 0.01). The area under the receiver operating characteristic curve of PARNIV was 0.75. Using the best cut-off (0.6), the sensitivity of PARNIV was 93% with a specificity 21%, a positive predictive value of 48%, and a negative predictive value of 81%. Correlation between PARNIV and BNP was significant (r = 0.52; p = 0.002). CONCLUSION Measurement of PARNIV in patients presenting to the ED with AECOPD had a good diagnostic performance for the detection of LHF and could represent an interesting alternative for the currently available methods. Trial registration The study was registered in the Clinical Trial Registration System (clinicaltrials.gov) under the study number NCT05189119, https://register. CLINICALTRIALS gov/prs/app/action/SelectProtocol?sid=S000BOO4&selectaction=Edit&uid=U0000QAM&ts=2&cx=qrmluh .
Collapse
Affiliation(s)
- Khaoula Bel Haj Ali
- Emergency Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia.,Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia
| | - Adel Sekma
- Emergency Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia.,Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia
| | - Ikram Chamtouri
- Cardiology Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia
| | - Kaouthar Beltaief
- Emergency Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia.,Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia
| | - Mohamed Amine Msolli
- Emergency Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia.,Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia
| | - Zied Mezgar
- Emergency Department, Farhat Hached University Hospital, 4031, Sousse, Tunisia
| | - Wahid Bouida
- Emergency Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia.,Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia
| | - Riadh Boukef
- Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia.,Emergency Department, Sahloul University Hospital, 4011, Sousse, Tunisia
| | - Hamdi Boubaker
- Emergency Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia.,Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia
| | - Mohamed Habib Grissa
- Emergency Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia.,Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia
| | - Semir Nouira
- Emergency Department, Fattouma Bourguiba University Hospital, 5000, Monastir, Tunisia. .,Research Laboratory LR12SP18, University of Monastir, 5019, Monastir, Tunisia.
| |
Collapse
|
3
|
Özen Kavas P, Recep Bozkurt M, Kocayiğit İ, Bilgin C. Machine learning-based medical decision support system for diagnosing HFpEF and HFrEF using PPG. Biomed Signal Process Control 2023. [DOI: 10.1016/j.bspc.2022.104164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
4
|
Alvis B, Huston J, Schmeckpeper J, Polcz M, Case M, Harder R, Whitfield JS, Spears KG, Breed M, Vaughn L, Brophy C, Hocking KM, Lindenfeld J. Noninvasive Venous Waveform Analysis Correlates With Pulmonary Capillary Wedge Pressure and Predicts 30-Day Admission in Patients With Heart Failure Undergoing Right Heart Catheterization. J Card Fail 2022; 28:1692-1702. [PMID: 34555524 PMCID: PMC8934313 DOI: 10.1016/j.cardfail.2021.09.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Heart failure is the leading cause of hospitalization in the elderly and readmission is common. Clinical indicators of congestion may not precede acute congestion with enough time to prevent hospital admission for heart failure. Thus, there is a large and unmet need for accurate, noninvasive assessment of congestion. Noninvasive venous waveform analysis in heart failure (NIVAHF) is a novel, noninvasive technology that monitors intravascular volume status and hemodynamic congestion. The objective of this study was to determine the correlation of NIVAHF with pulmonary capillary wedge pressure (PCWP) and the ability of NIVAHF to predict 30-day admission after right heart catheterization. METHODS AND RESULTS The prototype NIVAHF device was compared with the PCWP in 106 patients undergoing right heart catheterization. The NIVAHF algorithm was developed and trained to estimate the PCWP. NIVA scores and central hemodynamic parameters (PCWP, pulmonary artery diastolic pressure, and cardiac output) were evaluated in 84 patients undergoing outpatient right heart catheterization. Receiver operating characteristic curves were used to determine whether a NIVA score predicted 30-day hospital admission. The NIVA score demonstrated a positive correlation with PCWP (r = 0.92, n = 106, P < .0001). The NIVA score at the time of hospital discharge predicted 30-day admission with an AUC of 0.84, a NIVA score of more than 18 predicted admission with a sensitivity of 91% and specificity of 56%. Residual analysis suggested that no single patient demographic confounded the predictive accuracy of the NIVA score. CONCLUSIONS The NIVAHF score is a noninvasive monitoring technology that is designed to provide an estimate of PCWP. A NIVA score of more than 18 indicated an increased risk for 30-day hospital admission. This noninvasive measurement has the potential for guiding decongestive therapy and the prevention of hospital admission in patients with heart failure.
Collapse
Affiliation(s)
- Bret Alvis
- Department of Anesthesiology, Division of Critical Care, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee; VoluMetrix, LLC, Nashville, Tennessee.
| | - Jessica Huston
- Department of Medicine, Division of Cardiovascular Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Jeffery Schmeckpeper
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Monica Polcz
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Marisa Case
- Department of Anesthesiology, Division of Critical Care, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | | | | | - Meghan Breed
- Department of Anesthesiology, Division of Critical Care, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Lexie Vaughn
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Colleen Brophy
- VoluMetrix, LLC, Nashville, Tennessee; Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Kyle M Hocking
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee; VoluMetrix, LLC, Nashville, Tennessee; Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Joann Lindenfeld
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| |
Collapse
|
5
|
Serezhina EK, Obrezan AG. [The Valsalva load test and spectral tracking echocardiography effectiveness in the diagnosis of heart failure with preserved left ventricular ejection fraction]. KARDIOLOGIIA 2022; 62:30-36. [PMID: 35834339 DOI: 10.18087/cardio.2022.6.n1805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/29/2021] [Indexed: 06/15/2023]
Abstract
Aim To determine the applicability of speckle-tracking EchoCG (STE) and the Valsalva maneuver for diagnosis of heart failure with preserved left ventricular ejection fraction (CHFpEF).Material and methods Transthoracic STE with simultaneous electrocardiogram (ECG) recording was performed for patients with CHFpEF and healthy sex- and age-matched subjects (control group) at rest and during the Valsalva maneuver. The study was conducted in compliance with standards of Good Clinical Practice and principles of the Helsinki Declaration. The study protocol was approved by the Ethical Committee of the St. Petersburg State University.Results During the Valsalva maneuver, deviations of both global and segmental myocardial strain were more pronounced than at rest. In patients of the study group performing the Valsalva maneuver, LV end-diastolic volume and LV end-systolic volume (99 %) were increased. Heart rate was considerably reduced (significance of difference >99%) in patients with CHFpEF during the Valsalva maneuver compared to the control group. The increased predictive value of these parameters during the Valsalva maneuver can justify the inclusion of this method in early detection and prognostic assessment of CHFpEF.Conclusion Speckle-tracking EchoCG with the Valsalva maneuver is a noninvasive, generally available, and easily reproducible outpatient method for diagnosis of CHFpEF.
Collapse
Affiliation(s)
- E K Serezhina
- OOO International Medical Center "SOGAZ", St. Petersburg
| | - A G Obrezan
- OOO International Medical Center "SOGAZ", St. Petersburg
| |
Collapse
|
6
|
Rali AS, Butcher A, Tedford RJ, Sinha SS, Mekki P, Van Spall HGC, Sauer AJ. Contemporary Review of Hemodynamic Monitoring in the Critical Care Setting. US CARDIOLOGY REVIEW 2022. [DOI: 10.15420/usc.2021.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Hemodynamic assessment remains the most valuable adjunct to physical examination and laboratory assessment in the diagnosis and management of shock. Through the years, multiple modalities to measure and trend hemodynamic indices have evolved with varying degrees of invasiveness. Pulmonary artery catheter (PAC) has long been considered the gold standard of hemodynamic assessment in critically ill patients and in recent years has been shown to improve clinical outcomes among patients in cardiogenic shock. The invasive nature of PAC is often cited as its major limitation and has encouraged development of less invasive technologies. In this review, the authors summarize the literature on the mechanism and validation of several minimally invasive and noninvasive modalities available in the contemporary intensive care unit. They also provide an update on the use of focused bedside echocardiography.
Collapse
Affiliation(s)
- Aniket S Rali
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Amy Butcher
- Department of Cardiovascular Anesthesia and Critical Care, Baylor College of Medicine, Houston, TX
| | - Ryan J Tedford
- Division of Cardiology, Department of Medicine, Medical University of South Carolina, Charleston, SC
| | - Shashank S Sinha
- Division of Cardiology, Inova Heart and Vascular Institute, Inova Fairfax Medical Campus, Falls Church, VA
| | - Pakinam Mekki
- Department of Internal Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Harriette GC Van Spall
- Department of Medicine, Department of Health Research Methods, Evidence, and Impact, Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Andrew J Sauer
- Department of Cardiovascular Medicine, University of Kansas Medical Center, Kansas City, KS
| |
Collapse
|
7
|
Podsiadły A, Paleczny B, Olesińska-Mader M, Nowak K, Okupnik T, Wyciszkiewicz M, Łopusiewicz W, Ponikowski P, Ponikowska B. Valsalva-derived Measures and Phenylephrine Test in Patients With Heart Failure With Reduced Ejection Fraction Receiving Comprehensive Neurohormonal Blockade Drug Therapy: A 5-year Event-free Survival Analysis. J Card Fail 2021; 28:744-755. [PMID: 34758387 DOI: 10.1016/j.cardfail.2021.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND To assess the relationships between Valsalva- and phenylephrine test-derived measures and outcome in patients with heart failure with reduced ejection fraction (HFrEF) receiving comprehensive neurohormonal blockade pharmacotherapy. METHODS AND RESULTS Data from 56 patients with HFrEF (mean left ventricle ejection fraction of 32 ± 6%) subjected to Valsalva and phenylephrine tests were analyzed retrospectively. Baroreflex-related (Valsalva-ratio and blood pressure-RR interval slope from phase IV) and non-baroreflex-related measures (systolic blood pressure rise in phase IV [ΔSBPPHASE_IV], and pulse amplitude ratio [PAR]) were calculated from Valsalva. Short-term outcomes (HF-related hospitalization, implantable cardioverter-defibrillator shock or all-cause death within 24 months from examination) and long-term outcomes (implantable cardioverter-defibrillator shock or all-cause death within 60 months) were analyzed. The end point occurred in 16 and 18 patients, for the short- and long-term outcomes, respectively. A low ΔSBPPHASE_IV identified patients at risk in the long term, as evidenced by a low vs high ΔSBPPHASE_IV comparison (square-wave response patients assigned to low ΔSBPPHASE_IV group, P = .002), and Cox model (hazard ratio 0.91, 95% confidence interval 0.86-0.96, P < .001), and tended to identify patients at risk in the short term outcome (hazard ratio 0.95, 95% confidence interval 0.91-1.00, P = .055). There was a tendency toward a higher event-free survival in the low PAR group (low vs high PAR; hazard ratio 0.44, 95% CI 0.17-1.18, P = .104). CONCLUSIONS Non-baroreflex-related measures obtained from Valsalva-namely, ΔSBPPHASE_IV and PAR-might carry prognostic value in patients with HFrEF receiving neurohormonal blockade pharmacotherapy.
Collapse
Affiliation(s)
- Anna Podsiadły
- Department of Physiology and Pathophysiology, Wroclaw Medical Physiology, Wroclaw, Poland
| | - Bartłomiej Paleczny
- Department of Physiology and Pathophysiology, Wroclaw Medical Physiology, Wroclaw, Poland.
| | | | - Krzysztof Nowak
- Institute of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland; Centre for Heart Diseases, University Hospital in Wroclaw, Wroclaw, Poland
| | - Tymoteusz Okupnik
- Department of Physiology and Pathophysiology, Wroclaw Medical Physiology, Wroclaw, Poland
| | | | - Wojciech Łopusiewicz
- Department of Physiology and Pathophysiology, Wroclaw Medical Physiology, Wroclaw, Poland
| | - Piotr Ponikowski
- Institute of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland; Centre for Heart Diseases, University Hospital in Wroclaw, Wroclaw, Poland
| | - Beata Ponikowska
- Department of Physiology and Pathophysiology, Wroclaw Medical Physiology, Wroclaw, Poland
| |
Collapse
|
8
|
Silber HA, Win TT, Monti J, Galiatsatos P. Quantifying changes in size of arrhythmic photoplethysmography waveforms during a Valsalva maneuver for assessing cardiac filling pressure. Physiol Meas 2020; 41:105004. [PMID: 33164916 DOI: 10.1088/1361-6579/abb790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE We previously showed that the change in amplitude of a finger photoplethysmography waveform during the Valsalva maneuver reflects cardiac filling pressure. However, the automated determination of peaks and valleys to calculate amplitude is limited in significant arrhythmias such as atrial fibrillation and premature ventricular complexes, which are common in heart failure. The purpose of this study was to assess the change in size of the waveform by calculating the change in root mean square (RMS) of the signal, thereby utilizing the entire cardiac cycle, and to compare it to change in size of peak-to-valley amplitude. APPROACH We compared the two approaches in signals obtained from participants of a prior study who were tested prior to a clinically indicated cardiac catheterization. Correlation between the two methods was assessed in cases without, and then with, significant arrhythmias including atrial fibrillation or premature ventricular complexes. MAIN RESULTS Calculations from the two methods of peak-valley amplitude and RMS were highly correlated with each other in signals without (0.99, p < 0.0001, n = 252) and with significant arrhythmias (0.90, p < 0.0001, n = 34). SIGNIFICANCE RMS analysis of photoplethysmography signal size during the Valsalva maneuver is highly correlated with the method of analyzing changes in peak-valley amplitude, but does not rely on identifying peaks and valleys. The RMS method may be a more robust automated method of assessing cardiac filling pressure in patients with significant arrhythmias.
Collapse
Affiliation(s)
- Harry A Silber
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America
| | | | | | | |
Collapse
|