scholarly journals B-Lines on Chest Ultrasound Predicts Elevated Left Ventricular Diastolic Pressures

Author(s):  
Maadarani O ◽  
Bitar Z ◽  
Almeri K

Background: Echocardiography and lung ultrasound are important tests for assessing left ventricular function in patients presented to the emergency department with acute pulmonary edema. Chest ultrasound is becoming an important tool in diagnosing acute pulmonary edema. Aim: To investigate the relationship between the B profile on ultrasound chest and Spectral tissue Doppler echocardiography (E/e’ ratio) in patients presented with the suspicion of acute pulmonary edema. Methods: This paper reports a prospective observational study of 61 consecutive patients, which was presented with symptoms and signs of pulmonary edema and B - profile detected by echocardiography with a 5 MHz curvilinear probe. Critical care physicians trained in ultrasound examination performed echocardiography and chest ultrasounds. Results: Sixty-one participants were included in the study. Forty-seven of the 61 patients had a B-profile and 14 patients had an A profile. The mean E/e’ level in the patients with B-profile was 20.8, compared with the mean level in the patients with an A-profile of 8.2 (CI = 0.33-0.82). The distribution in the two groups differed significantly (p=0.003). Based on the value of E/e’, the sensitivity and specificity were determined; the sensitivity of B profile on ultrasound was 92% (95% confidence interval (CI) = 0.812-0.968), and the specificity was 91% (CI =0.623-0.98). The positive predictive value of the B-profile was 97% (CI=0.889-0.996), and the negative predictive value was 71% (CI=0.454-0.883). The systolic function in the subjects with a B-profile was below 50% in 74.3% of the subjects and normal in 25.7% of the subjects. All the subjects with B profile and systolic function > 50% had elevated ProBNP and E/e’ > 15. An A-profile subjects had systolic function > 55%. Conclusions: Detecting the B-profile in lung ultrasound is highly sensitive and specific for elevated left ventricular diastolic pressures regardless of the systolic function of the left ventricle which may help in diagnosing pulmonary edema.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 2814-2814
Author(s):  
Marna de Cruz ◽  
Babita Pawarova ◽  
Helen Lachmann ◽  
Julian Gillmore ◽  
Simon Gibbs ◽  
...  

Abstract Abstract 2814 Poster Board II-790 N-terminal fragment of brain natriuretic peptide is a cardiac biomarker that has prognostic significance in amyloidosis and NT-ProBNP can rapidly change after completion of chemotherapy. We and others who have previously reported such changes in NT-ProBNP to be of prognostic significance but there was no cardiac “progression” or “improvement” according to the international amyloidosis consensus criteria (Gertz et al 2005) in the majority - making this finding difficult to explain. We now report subtle changes in left ventricular systolic function using lateral wall tissue Doppler as a new robust and reproducible parameter correlating well with such changes in NT-ProBNP. Patients with cardiac amyloidosis as defined by the international consensus criteria who had good renal function (creatinine clearance >30ml/min), received chemotherapy and had a significant change in NT-ProBNP after chemotherapy were identified from the database of the UK National Amyloidosis Centre. A significant change in NT-ProBNP was defined as minimum rise or fall of 30% over the baseline pre-treatment value. Ninty seven patients with identified. All analysis was repeated on stored off line data on EchoPAC” in accordance with British Society of Echocardiography guidelines with special focus on ejection fraction (EF) (Biplane Simpson's method), longitudinal 2D strain, lateral TDI S wave (Tissue Doppler Imaging) and mean left ventricular wall thickness. At baseline the mean EF was 59%, mean LV wall thickness 13mm and mean TDI S wave velocity 0.07m/sec. 76/97 (78%) patients showed a significant increase in the NT-proBNP levels and 21/97 (22%) showed a significant a decrease. There was a significant correlation between the free light chain (FLC) level and NT-ProBNP at diagnosis (correlation coefficient 0.322; p <0.001). NT-ProBNP decreased from median 444 to 144 pMol/L (p=0.021) among patients who had a complete FLC response. There was also good correlation between the NT-ProBNP level with interventricular septal and left ventricular posterior wall thickness (spearman correlation coefficient 0.55, significance 0.01) at baseline. None of the patients had cardiac progression or improvement by echocardiography according to the international consensus criteria . In both groups of patients (increase or decrease in NT-ProBNP), there was no significant change in the LV wall thickness. In patients with a decrease in the NT-proBNP, there was no significant increase in the ejection fraction or longitudinal 2-D strain in the evaluable cases. But there was a significant improvement in the mean lateral TDI S wave (a marker of longitudinal LV systolic function) from 0.07 m/s to 0.08m/s (p=0.02) suggesting improvement in systolic function. In patients with an increase in the NT-ProBNP, there was a significant decrease in the mean EF from 60% to 56% (p=0.032). The longitudinal 2D strain also decreased significantly by mean of 10% (-13.9% to -12.6%; p=0.009) and the lateral TDI S wave also showed significant worsening with a decline from 0.09m/sec to 0.07m/sec (p <0.001). NT-ProBNP changes after chemotherapy have remained difficult to explain. The international consensus criteria for cardiac progression or improvement by echocardiography - a 2 mm change in the LV wall thickness or 20% change in EF - are relatively insensitive and the clinical criteria (change in NYHA class by 2) are not robust or reproducible to detect cardiac improvement or progression. Lateral TDI S wave is a robust and reproducible parameter that correlates well with both an increase and decrease drop in NT-ProBNP levels. This suggests that there are subtle changes to the left ventricular systolic function which correlate well with change in NT-ProBNP and are of prognostic significance. These changes in systolic function occur well before any substantial diastolic functional change or change in wall thickness. This interesting finding needs further validation in larger groups and if confirmed should be considered for incorporation in the consensus criteria for cardiac progression or improvement. Disclosures: No relevant conflicts of interest to declare.


2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
A Maaroufi ◽  
S Abouradi ◽  
H Zahidi ◽  
H Choukrani ◽  
R Habbal

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Assessment of longitudinal left ventricular (LV) function has a major clinical significance for the early detection of contractile LV dysfonction. The measurement of the MAPSE (Mitral annular plane systolic excursion) and the systolic peak velocity of the edge of the mitral ring (Sm) allow an accurate assessment of longitudinal systolic performance Objective The aim of this study was to compare the impact of isolated type 2 diabetes and the coexistence of hypertension and diabetes on LV longitudinal systolic performance. Patients and Methods The study included 170 diabetic patients, of whom 85 had both hypertension and diabetes, and 50 controls. The systolic mitral annulus (Sm) velocity by tissue Doppler and the Mitral annular plane systolic excursion (MAPSE) by M mode were measured in all subjects. Results The mean age was 52.8 ± 15 years with a sex ratio M / F 0.23 in diabetic patients, and a mean age 60.8 ± 8 years with a sex ratio M / F 0.45 in control subjects. The mean MAPSE value was reduced in diabetics (11.5 ± 2.6 mm) and even more in hypertensive diabetics (10.5 ± 3.0 mm) compared to controls (16.1 ± 2.4 mm ) (p = 0.02). Similar results were found for Sm (controls, 12.4 ± 2.5 cm / s; diabetics, 9.0 ± "3.3 cm / s; diabetic hypertensive, 7.3 ± 2.0 cm) (p = 0.04). Conclusions diabetics present a depression of the LV longitudinal systolic indices compared to healthy controls; the coexistence of diabetes and hypertension results in further impairment of LV longitudinal systolic function in an additive manner.


2021 ◽  
Vol 4 (18) ◽  
pp. 01-11
Author(s):  
Abdulaziz Aboshahba ◽  
Alsayed Ali Abdou Almarghany ◽  
Moaz Atef Elshahat Abdel ati

Background: We studied the diagnostic accuracy of B-lines (comet-tail sign) on bedside lung US, NT-proBNP, E/e` on ECHO in differentiation of the causes of acute dyspnea in the emergency setting. Major advantages include bedside availability, no radiation, high feasibility and reproducibility, and cost efficiency. Methods: Our prospective study was performed at the alazhar university hospital, Cairo, Egypt, between July 2019 and March 2020. All patients underwent lung ultrasound examinations, along with TTE, laboratory testing, including rapid NT-proBNP testing. Results: The median E/e’ levels in patients with B-profile were 18, compared with a median of 7.4 in the subjects with A-profile (P =< 0.0001 CI = -9.649 to -7.044). It was found that the sensitivity and the specificity of detecting B-profile on ultrasound is high when E/e’ > 15.5 (95.0% and 83.0% consecutively), which concluded the high correlation between finding B profile on U/S chest and elevated left ventricle filling pressure in a patient presenting with picture of suggestive of heart failure Conclusion: Chest ultrasound can be used as screening test for the evaluation of patients with suspicion of heart failure with excellent sensitivity and good specificity.


2019 ◽  
Vol 11 (4) ◽  
pp. 309-313
Author(s):  
Atoosa Mostafavi ◽  
Yaser Tase Zar ◽  
Farahnaz Nikdoust ◽  
Seyed Abdolhossein Tabatabaei

Introduction: In light of previous studies reporting the significant effects of preeclampsia on cardiac dimensions, we sought to evaluate changes in the left ventricular (LV) systolic and diastolic functions in patients with preeclampsia with a view to investigating changes in cardiac strain. <br /> Methods: This cross-sectional study evaluated healthy pregnant women and pregnant women suffering from preeclampsia who were referred to our hospital for routine healthcare services. LV strain was measured by 2D speckle-tracking echocardiography. <br /> Results: Compared with the healthy group, echocardiography in the group with preeclampsia showed a significant increase in the LV end-diastolic diameter (47.43 ± 4.94 mm vs 44.84 ± 4.30 mm; P = 0.008), the LV end-systolic diameter (31.16 ± 33.3 mm vs 29.20 ± 3.75 mm; P = 0.008), and the right ventricular diameter (27.93 ± 1.71 mm vs 24.53 ± 23.3; P = 0.001). The mean global longitudinal strain was -18.69 ± 2.8 in the group with preeclampsia and -19.39 ± 3.49 in the healthy group, with the difference not constituting statistical significance (P = 0.164). The mean global circumferential strain in the groups with and without preeclampsia was -20.4 ± 12.4 and -22.68 ± 5.50, respectively, which was significantly lower in the preeclampsia group (P = 0.028).<br /> Conclusion: The development of preeclampsia was associated with an increase in the right and left ventricular diameters, as well as a decrease in the ventricular systolic function, demonstrated by a decline in global circumferential strain.


Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Theophilus Owan ◽  
Kimberly Morley ◽  
Travis G Ault ◽  
Ronny Jiji ◽  
Nathaniel Hall ◽  
...  

Background: Obesity is associated with an increased risk of developing heart failure. Based on cross sectional studies, it has been hypothesized that the duration of obesity is the key factor leading to impaired cardiac function. However, longitudinal data to confirm this hypothesis are not available. Methods: We prospectively studied 62 severely obese patients at baseline, 2 and 5 years after randomization to nonsurgical therapy (NonSurg, n = 25) or Rouxen-Y gastric bypass surgery (GBS, n = 37). Echocardiography was used to measure left ventricular (LV) size and ejection fraction (EF). Results: At enrollment, the mean BMI was 46±9 and the mean age was 47±11 years (range 25– 66). GBS subjects lost 96± 26 vs. 6±18 lbs at 2 years and 78±42 vs. 17±42 lbs at 5 years compared to NonSurg (p<0.0001 for both). At baseline LVEF was not different between GBS and nonsurg (67±9 vs. 64±8%) and it did not change at 2 years (64±9 vs. 63±9%) or 5 years (63±9 vs. 63±10%). LV diastolic dimension did not change over time in control (4.3±1.0 vs. 4.2±0.6 vs. 4.5±0.3) or GBS patients (4.4±0.6 vs. 4.3±0.7 vs. 4.4±0.4). Stratifying the entire group by quartiles of age or duration of obesity (quartile 1 avg duration = 16 years, quartile 4 average duration = 56 years), we found no evidence of time-dependent changes in LV size or function. Conclusion: In this, prospective study of severely obese patients we found no evidence of progressive changes in LV size or EF over a period of 5 years. Moreover, we find no relationship between age or duration of obesity and LV size or LVEF. These data argue strongly that other factors such as the development of coronary disease are the most likely causes of heart failure in obese patients.


Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Elena Inches ◽  
Massimo Mancone ◽  
Gennaro Sardella ◽  
Raffaele Scardala ◽  
Riccardo Colantonio ◽  
...  

Background: The myocardial blush grade (MBG) during primary-PCI predicts long-term recovery of left ventricular function. Tissue Doppler imaging (TDI) quantitatively assess regional myocardial function by measuring systolic strain (SS). No data are available on the correlation between MBG and the infarcted segmental systolic function by TDI in STEMIpts. Methods: We evaluated 40 STEMI pts, divided in four groups (MBG 0; MBG 1; MBG 2; MBG 3) 10 pts for each goup. Primary PCI was performed according to current standard guidelines. Coronary angiograms were analyzed off-line by two expert interventional cardiologists in a blinded manner. MBG were estimated visually. Sixteen-segments model was applied and regional myocardial function was evaluated, immediately after primary PCI, by measuring SS by TDI . Only SS value in infarcted segments was correlated with the MBG. Results: No significative difference was observed between groups except for family history of CAD that was higher in MBG 2 group. Mean ejection fraction (39,1 ± 8,8%) and mean symptoms to balloon time(4.3 ± 1.6 h ) was similar in the population. 136 infarcted segments were studied by TDI. A significant direct correlation between the MBG and the SS (r=0.79; p<0.005) (Fig.1 ). We also observed a significative difference (p<0.005) between mean SS in pts with MBG ≤0 –1 (7.6 ± 2.4%) and in pts with MBG≥2–3(22.6 ± 5.2). Conclusions: Abnormal values of SS was observed in infarcted segments. The significant correlation observed between the MBG and SS may demonstrate that MBG represent an important predictive index not only of good reperfusion but also of rapid segmental function recovery; similarly an evaluation of SS after primary PCI could be useful to evaluate if primary percutaneus reperfusion has been effective or not.


2020 ◽  
Vol 9 ◽  
pp. 204800402092636
Author(s):  
Luca Faconti ◽  
Iain Parsons ◽  
Bushra Farukh ◽  
Ryan McNally ◽  
Lorenzo Nesti ◽  
...  

Objectives Running a marathon has been equivocally associated with acute changes in cardiac performance. First-phase ejection fraction is a novel integrated echocardiographic measure of left ventricular contractility and systo-diastolic coupling which has never been studied in the context of physical activity. The aim of this study was to assess first-phase ejection fraction following recreational marathon running along with standard echocardiographic indices of systolic and diastolic function. Design and participants: Runners (n = 25, 17 males), age (mean ± standard deviation) 39 ± 9 years, were assessed before and immediately after a marathon race which was completed in 4 h, 10 min ± 47 min. Main outcome measures Central hemodynamics were estimated with applanation tonometry; cardiac performance was assessed using standard M-mode two-dimensional Doppler, tissue-doppler imaging and speckle-tracking echocardiography. First-phase ejection fraction was calculated as the percentage change in left ventricular volume from end-diastole to the time of peak aortic blood flow. Results Conventional indices of systolic function and cardiac performance were similar pre- and post-race while aortic systolic blood pressure decreased by 9 ± 8 mmHg ( P < 0.001) and first-phase ejection fraction increased by approximately 48% from 16.3 ± 3.9% to 22.9 ± 2.5% ( P < 0.001). The ratio of left ventricular transmitral Doppler early velocity (E) to tissue-doppler imaging early annular velocity (e′) increased from 5.1 ± 1.8 to 6.2 ± 1.3 ( P < 0.01). Conclusion In recreational marathon runners, there is a marked increase in first-phase ejection fraction after the race despite no other significant change in cardiac performance or conventional measure of systolic function. More detailed physiological studies are required to elucidate the mechanism of this increase.


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