scholarly journals Intrarenal Doppler ultrasonography reflects hemodynamics and predicts prognosis in patients with heart failure

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Akiomi Yoshihisa ◽  
Koichiro Watanabe ◽  
Yu Sato ◽  
Shinji Ishibashi ◽  
Mitsuko Matsuda ◽  
...  

AbstractWe aimed to clarify clinical implications of intrarenal hemodynamics assessed by intrarenal Doppler ultrasonography (IRD) and their prognostic impacts in heart failure (HF). We performed a prospective observational study, and examined IRD and measured interlobar renal artery velocity time integral (VTI) and intrarenal venous flow (IRVF) patterns (monophasic or non-monophasic pattern) to assess intrarenal hypoperfusion and congestion in HF patients (n = 341). Seven patients were excluded in VTI analysis due to unclear imaging. The patients were divided into groups based on (A) VTI: high VTI (VTI ≥ 14.0 cm, n = 231) or low VTI (VTI < 14.0 cm, n = 103); and (B) IRVF patterns: monophasic (n = 36) or non-monophasic (n = 305). We compared post-discharge cardiac event rate between the groups, and right-heart catheterization was performed in 166 patients. Cardiac index was lower in low VTI than in high VTI (P = 0.04), and right atrial pressure was higher in monophasic than in non-monophasic (P = 0.03). In the Kaplan–Meier analysis, cardiac event rate was higher in low VTI and monophasic groups (P < 0.01, respectively). In the Cox proportional hazard analysis, the combination of low VTI and a monophasic IRVF pattern was a predictor of cardiac events (P < 0.01). IRD imaging might be associated with cardiac output and right atrial pressure, and prognosis.

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Koichiro Watanabe ◽  
Akiomi YOSHIHISA ◽  
Yu Sato ◽  
Yu Hotsuki ◽  
Yasuhiro Ichijo ◽  
...  

Introduction: We aimed to clarify clinical implications of intrarenal hemodynamics (congestion and hypoperfusion) assessed by intrarenal Doppler ultrasonography (IRD) and their prognostic impacts in patients with heart failure (HF). Methods and Results: We performed IRD and measured interlobar renal artery velocity time integral (VTI) and intrarenal venous flow (IRVF) patterns (monophasic or non-monophasic pattern) to assess intrarenal hypoperfusion and congestion in HF patients (n=341). These patients were categorized based on 1) VTI: high VTI (VTI ≥ 14.0 cm, n=231) or low VTI (VTI < 14.0 cm, n=103); and 2) IRVF: monophasic (n=36) or non-monophasic (n=305) pattern. We performed right-heart catheterization, and examined post-discharge cardiac event rate such as cardiac death and rehospitalization due to worsening HF. Regarding renal perfusion, cardiac index was positively correlated with VTI (R=0.270, P=0.040). Concerning renal congestion, levels of right atrial pressure were higher in monophasic pattern than in non-monophasic pattern (9.0 vs. 7.2 mmHg, P=0.029). Importantly, HF patients with low VTI and a monophasic IRVF pattern (subset 4) had the highest cardiac event rate ( Figure ). In the Cox proportional hazard analysis, the combination of low VTI and a monophasic IRVF pattern was found to be a strong predictor of cardiac events (HR 8.357, 95% CI 3.365-20.752). Conclusion: Intrarenal hypoperfusion and congestion assessed by IRD imaging reflected cardiac output and right atrial pressure, and was useful to risk-stratify HF patients.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Libo Wang ◽  
Jonathan Harrison ◽  
Elizabeth Dranow ◽  
Lillian Khor

Introduction: Accurate intravascular volume status assessment is central to heart failure management, but current non-invasive bedside techniques remain a challenge. Visual inspection of jugular venous pulsation (JVP) is used as a surrogate for central venous pressure (CVP). Studies have shown variability and inaccuracy of the JVP exam in estimating CVP or right atrial pressure (RAP). Published methods of RAP estimation through internal jugular vein (IJV) ultrasonography are either complex or require offline analysis. We validated a simplified approach to ultrasonography of the JVP (uJVP) as a method to predict RAP. Methods: Adult patients undergoing right heart catheterization (RHC) were enrolled prior for IJV imaging with point of care ultrasound (POCUS) device, Butterfly iQ™. The IJV was identified on ultrasound with the patient reclined (head of bed between 30-45°) and followed cranially until tapering smaller than the adjacent carotid artery throughout the entirety of the respiratory cycle. The height of this collapse point from the sternal angle added to 5 centimeters was defined as ultrasound JVP (uJVP). Results: 77 participants underwent uJVP assessment on the same day prior to RHC. Average BMI was 33 kg/m 2 . The area under the curve (AUC) of uJVP and RAP greater than 10mmHg on RHC was 0.879 (95% CI 0.759-0.931, p<0.001), with AUC of 0.972 and 0.818 for non-obese and obese subgroups respectively, and AUC of 0.876 for elevated RAP and pulmonary capillary wedge pressure (PCWP). A uJVP cutoff of 9 or higher was 85% sensitive and 72% specific at identifying RAP greater than 10mmHg. Conclusion: We developed and validated a novel technique identifying the uJVP using POCUS which correlates with invasive RAP regardless of obesity. This technique predicted combined elevated left and right sided intracardiac pressures. The uJVP’s potential to enhance the diagnostic value of the bed-side examination in an increasingly obese heart failure population warrants further research.


2021 ◽  
Vol 8 ◽  
Author(s):  
Koichiro Watanabe ◽  
Akiomi Yoshihisa ◽  
Yu Sato ◽  
Yu Hotsuki ◽  
Fumiya Anzai ◽  
...  

Aims: We aimed to assess the associations of CAVI with exercise capacity in heart failure (HF) patients. In addition, we further examined their prognosis.Methods: We collected the clinical data of 223 patients who had been hospitalized for decompensated HF and had undergone both CAVI and cardiopulmonary exercise testing.Results: For the prediction of an impaired peak oxygen uptake (VO2) of &lt; 14 mL/kg/min, receiver-operating characteristic curve demonstrated that the cutoff value of CAVI was 8.9. In the multivariate logistic regression analysis for predicting impaired peak VO2, high CAVI was found to be an independent factor (odds ratio 2.343, P = 0.045). We divided these patients based on CAVI: the low-CAVI group (CAVI &lt; 8.9, n = 145) and the high-CAVI group (CAVI ≥ 8.9, n = 78). Patient characteristics and post-discharge cardiac events were compared between the two groups. The high-CAVI group was older (69.0 vs. 58.0 years old, P &lt; 0.001) and had lower body mass index (23.0 vs. 24.1 kg/m2, P = 0.013). During the post-discharge follow-up period of median 1,623 days, 58 cardiac events occurred. The Kaplan–Meier analysis demonstrated that the cardiac event rate was higher in the high-CAVI group than in the low-CAVI group (log–rank P = 0.004). The multivariate Cox proportional hazard analysis revealed that high CAVI was an independent predictor of cardiac events (hazard ratio 1.845, P = 0.035).Conclusion: High CAVI is independently associated with impaired exercise capacity and a high cardiac event rate in HF patients.


Author(s):  
Parinita Dherange ◽  
Nelson Telles ◽  
Kalgi Modi

Abstract Background Carcinoid heart disease is present in approximately 20% of the patients with carcinoid syndrome and is associated with poor prognosis. It usually manifests with right-sided valvular involvement including tricuspid insufficiency and pulmonary stenosis. Patent foramen ovale (PFO) is present in approximately 50% of the patients with carcinoid heart disease which is twice higher than the general population. Right-to-left shunting through a PFO can occur either due to higher right atrial pressure than left (pressure-driven) or when the venous flow is directed towards the PFO (flow-driven) in the setting of normal intracardiac pressures. We report a rare case of flow-driven right-to-left atrial shunting via PFO in a patient with carcinoid heart disease. Case summary A 54-year-old male with a metastatic neuroendocrine tumour to liver presented with progressive shortness of breath for 5 months. Patient was found to be hypoxic with oxygen saturation of 78% and examination revealed a holosystolic murmur. Arterial blood gas showed oxygen tension of 43 mmHg. A transthoracic and transoesophageal echocardiogram showed aneurysmal inter-atrial septum with a PFO, severe tricuspid regurgitation directed anteriorly towards the inter-atrial septum leading to a marked right-to-left shunt. Right heart catheterization showed right atrial pressure of 8 mmHg, mean pulmonary artery pressure of 12 mmHg, and normal oxygen saturations in the right atrium, right ventricle, and pulmonary arteries. The patient then underwent closure of the PFO along with tricuspid valve and pulmonary valve replacement at an experienced cardiovascular surgical centre and has been asymptomatic since. Conclusion Right-to-left shunting through a PFO in patients with normal right atrial pressure can be successfully treated with closure of the PFO. Thus, understanding the mechanism of intracardiac shunts is important to accurately diagnose and treat this rare and fatal condition.


2021 ◽  
Vol 14 (2) ◽  
Author(s):  
Taku Omori ◽  
Goki Uno ◽  
Shunsuke Shimada ◽  
Florian Rader ◽  
Robert J. Siegel ◽  
...  

Background: A new grading of tricuspid regurgitation (TR) beyond severe has been proposed. However, few studies assessing the validity of such a new grading scheme of TR have been conducted. Therefore, we evaluated associations of TR grades beyond severe with patient outcome and hemodynamics. Methods: We retrospectively studied patients who underwent 2-dimensional echocardiography and were diagnosed with severe TR between January 2014 and December 2015. According to the vena contracta width of TR (VC), the patients were classified into 2 groups: VC under 14 mm (VC<14 mm) and VC 14 mm or greater (VC≥14 mm). Hemodynamic parameters were estimated by echocardiography and were obtained by right heart catheterization. Cardiovascular events were defined as cardiovascular death or admission for heart failure. Results: A total of 679 patients (mean 72±17 years, 56% women) were included. During follow-up (median, 158 days; range, 29–891), 210 patients experienced cardiovascular events. By multivariate analysis, VC≥14 mm and left ventricular ejection fraction were independent predictors of cardiovascular events (hazard ratio, 1.57 [1.06–2.33]; hazard ratio, 0.99 [0.98–0.99], respectively). Patients with VC≥14 mm had significantly lower cardiac index (median, 1.8 versus 2.1 L/min per m 2 , P =0.001) and a higher prevalence of right atrial pressure 15 mm Hg (74% versus 60%, P <0.001) on echocardiography. Also, right heart catheterization confirmed higher right atrial pressure in patients with VC≥14 mm than those with VC<14 mm (16±8 versus 12±6 mm Hg, P =0.004). The new subset classification developed by cardiac index and right atrial pressure both on echocardiography predicted cardiovascular events (Log-rank P <0.001). Conclusions: The relationship of VC≥14 mm to adverse outcome and poor hemodynamics showed the clinical relevance and need of a new grading system beyond severe. The new hemodynamic subset classification provides additional prognostic value for cardiovascular events in patients with severe TR.


Author(s):  
GÜNDÜZALP SAYDAM ◽  
Ali Kilinc ◽  
Veysel Tosun ◽  
Necmettin Korucuk ◽  
Unal Guntekin ◽  
...  

Objective: According to Bernoulli Equation, systolic pulmonary artery pressure is obtained echocardiographically by adding estimated right atrial pressure (RAP) to the multiply of square of tricuspid regurgitation flow rate by four. RAP is estimated based on inferior vena cava (IVC) diameter and collapse. Our objective is to investigate usability of coronary sinus(CS) diameter and collapse, measured by echocardiography for estimating RAP. Methods: Our study is a single center, prospective study. 136 patients, over 18 years of age and without exclusion criteria, who admitted to Akdeniz University Hospital Cardiology Department between March 2017 and March 2018 and were scheduled to undergo right heart catheterization for any reason were included study. Results: Patients were divided into two groups as invasively measured RAP ≥10 mmHg (n: 57) and RAP <10 mmHg (n: 79). In group with RAP ≥10 mmHg, maximum IVC and CS diameter were higher than group with RAP <10 mmHg, IVC and CS collapse indices were lower (p <0.001). Optimal cut-off value for maximum IVC diameter was 19.6 mm (sensitivity 63.2%, specificity 87.3%), for IVC collapse index was 46.1 (sensitivity 75%, specificity 79.7%), for maximum CS diameter was 11 mm (sensitivity 64.9%, specificity 77%), for CS collapse index was 39.2 (sensitivity 75.4%, specificity 88.6%). Conclusion: Significant relationship was found between invasively measured RAP and maximum IVC diameter, collapse index and maximum CS diameter and collapse index. Results of CS parameters were as significant as results of IVC parameters therefore it shows that CS can also be used for estimating RAP.


Author(s):  
Andrew John Fletcher ◽  
Shaun Robinson ◽  
Bushra Rana

Right atrial pressure (RAP) is a key cardiac parameter of diagnostic and prognostic significance, yet current two-dimensional echocardiographic methods are inadequate for the accurate estimation of this haemodynamic marker. Right-heart trans-tricuspid Doppler and tissue Doppler echocardiographic techniques can be combined to calculate the right ventricular (RV) E/e’ ratio – a reflection of RV filling pressure which is a surrogate of RAP. A systematic search was undertaken which found seventeen articles that compared invasively measured RAP with RV-E/e’ estimated RAP. Results commonly concerned pulmonary hypertension or advanced heart failure/transplantation populations. Reported receiver operator characteristic analyses showed reasonable diagnostic ability of RV-E/e’ for estimating RAP in patients with coronary artery disease and RV systolic dysfunction. The diagnostic ability of RV-E/e’ was generally poor in studies of paediatrics, heart failure and mitral stenosis, whilst results were equivocal in other diseases. Bland-Altman analyses showed good accuracy but poor precision of RV-E/e’ for estimating RAP, but were limited by only being reported in seven out of seventeen articles. This suggests that RV-E/e’ may be useful at a population level but not at an individual level for clinical decision making. Very little evidence was found about how atrial fibrillation may affect the estimation of RAP from RV-E/e’, nor about the independent prognostic ability of RV-E/e’ . Recommended areas for future research concerning RV-E/e’ include; non-sinus rhythm, valvular heart disease, short and long term prognostic ability, and validation over a wide range of RAP.


2020 ◽  
Vol 9 (22) ◽  
Author(s):  
Mona Lichtblau ◽  
Patrick R. Bader ◽  
Stéphanie Saxer ◽  
Charlotte Berlier ◽  
Esther I. Schwarz ◽  
...  

Background We investigated changes in right atrial pressure (RAP) during exercise and their prognostic significance in patients assessed for pulmonary hypertension (PH). Methods and Results Consecutive right heart catheterization data, including RAP recorded during supine, stepwise cycle exercise in 270 patients evaluated for PH, were analyzed retrospectively and compared among groups of patients with PH (mean pulmonary artery pressure [mPAP] ≥25 mm Hg), exercise‐induced PH (exPH; resting mPAP <25 mm Hg, exercise mPAP >30 mm Hg, and mPAP/cardiac output >3 Wood Units (WU)), and without PH (noPH). We investigated RAP changes during exercise and survival over a median (quartiles) observation period of 3.7 (2.8–5.6) years. In 152 patients with PH, 58 with exPH, and 60 with noPH, median (quartiles) resting RAP was 8 (6–11), 6 (4–8), and 6 (4–8) mm Hg ( P <0.005 for noPH and exPH versus PH). Corresponding peak changes (95% CI) in RAP during exercise were 5 (4–6), 3 (2–4), and −1 (−2 to 0) mm Hg (noPH versus PH P <0.001, noPH versus exPH P =0.027). RAP increase during exercise correlated with mPAP/cardiac output increase ( r =0.528, P <0.001). The risk of death or lung transplantation was higher in patients with exercise‐induced RAP increase (hazard ratio, 4.24; 95% CI, 1.69–10.64; P =0.002) compared with patients with unaltered or decreasing RAP during exercise. Conclusions In patients evaluated for PH, RAP during exercise should not be assumed as constant. RAP increase during exercise, as observed in exPH and PH, reflects hemodynamic impairment and poor prognosis. Therefore, our data suggest that changes in RAP during exercise right heart catheterization are clinically important indexes of the cardiovascular function.


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