Review
Nursing
Amber Leigh Borg, Josef Trapani
Summary: This evidence-based review aimed to determine whether continuous non-invasive blood pressure (CNIBP) monitoring, using Radial Artery Applanation Tonometry (RAAT) devices, is as accurate as invasive methods. Most studies showed that mean arterial pressure is accurately recorded through RAAT monitoring, but further research is needed to assess the accuracy of non-invasive readings of systolic and diastolic blood pressures.
NURSING IN CRITICAL CARE
(2023)
Article
Multidisciplinary Sciences
Jacopo Belfiore, Etrusca Brogi, Niccolo Nicolini, Davide Deffenu, Francesco Forfori, Carlo Palombo
Summary: This study investigated the hemodynamic variations associated with the application of positive end-expiratory pressure (PEEP) in healthy subjects. The results showed that low levels of PEEP prolong diastolic phase and reduce systolic work of the heart.
SCIENTIFIC REPORTS
(2022)
Article
Surgery
Steven Maximus, Mimmie Kwong, Joel Harding, Matthew Mell
Summary: This study evaluated the safety of different arterial access routes, including radial artery (RA), femoral artery (FA), and brachial artery (BA), in the treatment of lower extremity peripheral arterial disease (LE-PAD). The results showed that RA and FA were associated with a lower risk of significant access site complications (ASCs) compared to BA. Therefore, RA may be a safer primary access vessel for treating LE-PAD.
JOURNAL OF VASCULAR SURGERY
(2023)
Article
Ophthalmology
Younhea Jung, Hyun Suh, Jung Il Moon
Summary: The study showed that in patients using prostaglandin analogues, there were significant differences in IOP measurements between GAT and NCT, with RBT overestimating and NCT underestimating IOP compared to GAT.
Article
Physiology
Daniel Bia, Yanina Zocalo, Ramiro Sanchez, Gustavo Lev, Oscar Mendiz, Franco Pessana, Agustin Ramirez, Edmundo Cabrera-Fischer
Summary: This study evaluated the agreement between invasively and non-invasively obtained aoSBP and aoPP values using different recording techniques, sites, waveform analysis algorithms, and calibration schemes. Overall, non-invasive methods yielded lower aoSBP and aoPP levels compared to invasive methods. CCA recordings provided values closest to invasive recordings, followed by BA recordings. The 033HR and 0412 calibration schemes showed the lowest mean error, while the 033 method had the highest error. Most non-invasive methods overestimated and underestimated aoSBP at low and high invasive aoSBP values, respectively. The higher the invasively measured aoPP, the greater the underestimation by non-invasive methods. Therefore, the recording method and site, the mathematical method/model used to quantify aoSBP and aoPP, and the calibration method for waveforms are essential for accurate estimation of aoBP. This study highlights the importance of methodological transparency and consensus for non-invasive aoBP assessment.
FRONTIERS IN PHYSIOLOGY
(2023)
Review
Medicine, General & Internal
William J. Keller
Summary: The study compared the intraocular pressure measurements using Tono-Pen and Goldmann applanation tonometry in healthy adults and found that there was a minimal difference between the two methods, suggesting that they can be used interchangeably in clinical practice.
Article
Ophthalmology
Laurence Querat, Enping Chen
Summary: The study aimed to examine the impact of self-tonometry on clinicians' decision in glaucoma treatment. The results suggested that self-tonometry provides clinicians with important information for clinical decision-making and supports an intensification of glaucoma treatment, thereby avoiding under- or over-treatment for the benefit of patients.
ACTA OPHTHALMOLOGICA
(2023)
Article
Cardiac & Cardiovascular Systems
Jing Liu, Niema M. Pahlevan
Summary: The study proposes a novel dicrotic wave decomposition model to explain the intersite discrepancies in ejection time measurement from arterial waveforms, aiming to enhance the accuracy of both classical physics-based and contemporary artificial intelligence-based pulse wave analysis methods in clinical and wearable radial blood pressure monitoring applications.
AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY
(2021)
Article
Multidisciplinary Sciences
Marcelo Macedo, Marcelo Hatanaka, Wilma Lelis Barboza, Gabriella Marranghello Mingione, Renato Ambrosio, Remo Susanna Jr
Summary: This study investigated the effects of topical anesthetic and fluorescein drops on intraocular pressure, central corneal thickness, and biomechanical properties in healthy eyes. The study found that the administration of drops resulted in significant differences in intraocular pressure, but these differences were not clinically relevant. Central corneal thickness increased significantly after drop administration, while biomechanical properties remained unaffected.
SCIENTIFIC REPORTS
(2023)
Article
Cardiac & Cardiovascular Systems
Daniel Bia, Yanina Zocalo, Ramiro Sanchez, Juan F. Torrado, Gustavo Lev, Oscar Mendiz, Franco Pessana, Agustin Ramirez, Edmundo I. Cabrera-Fischer
Summary: The use of oscillometry to determine brachial blood pressure can result in underestimation of invasively measured systolic and pulse pressure levels, as well as overestimation of diastolic pressure. There is no consensus on the most accurate approach to estimate brachial mean blood pressure non-invasively.
JOURNAL OF CARDIOVASCULAR DEVELOPMENT AND DISEASE
(2023)
Article
Biophysics
Aicha Rima Cheniti, Hatem Besbes, Moez Chafra, Christophe Sintes, Mohamed Omri
Summary: This paper presents a novel noninvasive process for in vivo measurement of carbon dioxide blood pressure by establishing linear mathematical relations between the mean mixture pressure and the radial velocity variation. A response model is proposed to describe the ultrasound signal backscattered by the solution, and a comparative study is conducted to determine the most appropriate method for computing the carbon dioxide pressure.
JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY
(2021)
Article
Medicine, General & Internal
Peiyuan Wang, Yunhe Song, Fengbin Lin, Zhenyu Wang, Xinbo Gao, Weijing Cheng, Meiling Chen, Yuying Peng, Yuhong Liu, Xiulan Zhang, Shida Chen
Summary: This study compared intraocular pressure (IOP) values measured using Goldmann applanation tonometry (IOPGAT) and non-contact tonometry (IOPNCT) in a non-pathologic high myopia population. The results showed that IOPNCT overestimated IOPGAT, and the difference between the two measurements was influenced by factors such as body mass index, systolic blood pressure, and central corneal thickness.
FRONTIERS IN MEDICINE
(2022)
Article
Veterinary Sciences
Julie A. Kiland, Hannah M. Terhaar, Hannah E. Walleck, Nickolas Chen, Kyle McDaniel, Gillian J. McLellan
Summary: This study evaluated the accuracy, precision, and clinical applicability of the ICare (R) TONOVET Plus (TVP) in cats. The results showed a strong correlation between TVP values and TV01 values, and the TP significantly underestimated IOP at high levels. It was also found that the TVP and TV01 readings were interchangeable between models and observers, but subtle differences may be important in a research context.
VETERINARY OPHTHALMOLOGY
(2023)
Article
Cardiac & Cardiovascular Systems
Xujie Zhang, Yumin Jiang, Fuyou Liang, Jianping Lu
Summary: The study aims to establish the threshold values of AVI and API for screening increased arterial stiffness in the general population. The results indicate that with appropriate threshold values, AVI and API can be used for preliminary screening, but the values should be adjusted to improve diagnostic accuracy.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2023)
Article
Physiology
Yanina Zocalo, Daniel Bia
Summary: Aortic blood pressure waveform-derived indexes provide valuable information beyond cardiovascular risk factors, but there are differences between techniques, recording sites, and analysis methods. Gender, body height, and age also affect these indexes. Therefore, specific reference intervals for gender, body height, and age are needed to accurately evaluate waveform-derived indexes.
FRONTIERS IN PHYSIOLOGY
(2022)
Review
Peripheral Vascular Disease
Audrey Adji
AMERICAN JOURNAL OF HYPERTENSION
(2022)
Article
Engineering, Biomedical
Audrey Adji, Sajad Shehab, Pankaj Jain, Desiree Robson, Paul Jansz, Christopher S. Hayward
Summary: Durable continuous-flow left ventricular assist devices (cfLVADs) outperform medical therapy alone in terms of survival, cardiac functional status, and overall quality of life in advanced heart failure. Previous studies have overlooked the influence of arterial compliance on pump performance and arterial pressure. This study examines the impact of alterations in arterial compliance, preload, and afterload on continuous-flow pump function and measured hemodynamics through an in-vitro pulsatile mock circulatory loop.
Article
Cardiac & Cardiovascular Systems
Huijuan Chao, Yueliang Hu, Qian Wang, Biwen Tang, Audrey Adji, Alberto Avolio, Kun Qian, Junli Zuo
Summary: This study found that central obesity (measured by waist circumference and waist-hip ratio) may have greater predictive value for vascular stiffness than BMI. Further research focusing on arterial wave travel and its relationship with body fat distribution is needed.
REVIEWS IN CARDIOVASCULAR MEDICINE
(2022)
Editorial Material
Peripheral Vascular Disease
Audrey Adji, Isabella Tan
AMERICAN JOURNAL OF HYPERTENSION
(2023)
Article
Peripheral Vascular Disease
Ning Song, Audrey I. Adji, Sara L. Hungerford, Mayooran J. Namasivayam, Christopher S. Hayward, Andrew Jabbour, David W. M. Muller
Summary: This study found that arterial stiffening has a significant impact on pulsatile left ventricular afterload in patients with aortic stenosis, beyond the effect of systemic hypertension. Circulatory afterload pulsatile efficiency (CAPE) was used as an indicator of vascular function, measuring the ratio of steady state energy consumption (SEC) to pulsatile energy consumption (PEC) required to maintain systemic circulation. After transcatheter aortic valve replacement (TAVR), eight out of 20 patients showed a reduction in PEC, which was strongly correlated with the number of days post TAVR. Patients assessed within 100 days of TAVR had an increase in PEC compared to baseline. Overall, no significant differences were found in various parameters of arterial function between baseline and post TAVR. Improved flow profiles after TAVR likely contribute to vascular remodeling and improvement of pulsatile afterload, as reflected by the proposed index of CAPE.
HYPERTENSION RESEARCH
(2023)
Review
Cardiac & Cardiovascular Systems
Sara L. Hungerford, Audrey I. Adji, Navin K. Kapur
Summary: The central aortic pressure waveform is simple in form but complex in physiological interpretation. There is increasing interest in the contour of the pressure wave in elderly patients with aortic valve stenosis. Methods to measure the central aortic pressure waveform and transcatheter aortic valve implantation technologies have enhanced our understanding of waveform alterations in elderly patients.
AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY
(2023)
Article
Cardiac & Cardiovascular Systems
Sara Louise Hungerford, Katherine Kearney, Ning Song, Nicole Bart, Eugene Kotlyar, Edmund Lau, Andrew Jabbour, Christopher Simon Hayward, David William Marshall Muller, Audrey Adji
Summary: We evaluated the relationship between pulmonary impedance and pulmonary artery pressure and pulmonary vascular resistance using a cardiac magnetic resonance/right heart catheterization method. The results showed that pulmonary impedance is more closely related to pulmonary artery hypertension and better predicts maladaptive right ventricular remodeling. This straightforward method could be used to better assess pulsatile load in patients with pulmonary artery hypertension.
Article
Physiology
Sara Hungerford, Katherine Kearney, Ning Song, Eugene Kotlyar, Nicole K. Bart, Edmund Lau, Andrew Jabbour, Christopher Simon Hayward, David William Marshall Muller, Audrey Adji
Summary: Understanding and predicting changes in the systemic and pulmonary circulations in pulmonary hypertension (PH) is increasingly important. Describing the circulation in complete quantitative terms, including characteristic impedance (Zc), is necessary to do so. Previous studies have not described the relationships between systemic and pulmonary Zc according to PH classification.
PHYSIOLOGICAL REPORTS
(2023)
Meeting Abstract
Peripheral Vascular Disease
Audrey Adji, Katherine Kearney, Sara Hungerford, Ning Song, Eugene Kotlyar, Edmund Lau, Andrew Jabbour, Christopher Haywrd
JOURNAL OF HYPERTENSION
(2023)
Meeting Abstract
Peripheral Vascular Disease
Audrey Adji, Katherine Kearney, Sara Hungerford, Eugene Kotlyar, Edmund Lau, Andrew Jabbour, Christopher Hayward
JOURNAL OF HYPERTENSION
(2023)
Meeting Abstract
Peripheral Vascular Disease
Ning Song, Audrey Adji, Sara Hungerford, Mayooran Namasivayam, Christopher Hayward, Andrew Jabbour, David Muller
JOURNAL OF HYPERTENSION
(2023)
Meeting Abstract
Cardiac & Cardiovascular Systems
Audrey Adji, Katherine Kearney, Louise L. Hungerford, Eugene Kotlyar, Edmund Lau, Andrew Jabbour, C. Hayward
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
(2022)
Meeting Abstract
Cardiac & Cardiovascular Systems
Audrey Adji, Katherine Kearney, Louise L. Hungerford, Eugene Kotlyar, Edmund Lau, Andrew Jabbour, C. Hayward
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
(2022)
Meeting Abstract
Cardiac & Cardiovascular Systems
Ning Song, Audrey Adji, Sara Hungerford, Mayooran Namasivayam, Christopher Hayward, Andrew Jabbour, David W. M. Muller
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
(2022)
Article
Cardiac & Cardiovascular Systems
Junli Zuo, Biwen Tang, Michael F. O'Rourke, Alberto P. Avolio, Audrey Adji
Summary: Arterial stiffness measured by BAPWV is positively associated with blood pressure, but the relationship between BAPWV and BMI may only be significant in certain age and gender groups. This suggests that BMI may not be the most accurate indicator of obesity-related CV risk assessment. Further research is needed to understand the implications of these findings for individuals with higher BMI.
JOURNAL OF CARDIOVASCULAR DEVELOPMENT AND DISEASE
(2022)
