Proof of concept study on the utility of integrated transthoracic and transesophageal echocardiography aortic stenosis assessment

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S Schwartzenberg ◽  
A Sagie ◽  
S Kazum ◽  
I Yedidya ◽  
D Monakier ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
Transesophageal Echocardiography ◽  
Medical Therapy ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Low Flow ◽  
P Value ◽  
Group A ◽  
Group B ◽  
The Impact

Abstract Background Integrated echo method (IEM) combining transthoracic and transesophageal echocardiography (TTE/TEE) data can provide accurate aortic stenosis (AS) assessment. Our objectives were to evaluate the impact of IEM classification on mortality in AS patients. Methods Between 2016–2017, 63 out of 81 consecutive patients with at least moderate AS underwent comprehensive sequential TTE and TEE. AS types were determined by TTE and IEM (utilizing TEE planimetry of left ventricular outflow tract and highest Doppler spectral signals from both TTE and TEE). Based on conservative vs actionable implication, AS types were dichotomized into Group A, comprising moderate and Normal-Flow Low-Gradient (NFLG), and Group B, comprising High-Gradient (HG), Low ejection fraction Low-Flow Low-Gradient (Low EF LFLG), and Paradoxical Low-Flow Low-Gradient (PLFLG) AS. Survival under medical therapy was determined. Results Dichotomous classification was discordant in 15.9% of the patients with the two methods, with a relative risk of 1.55 of A to B Group re-classification with IEM (p<0.001). The optimal cut-off value of TTE-determined AVA for AS classification was 0.82 cm2 (75% sensitivity and 87% specificity) vs an IEM-determined optimal AVA cut-off value of 0.92 cm2 (84.4% sensitivity and 76% specificity). During a median time of 9 months (quartiles 2.4–22 months) of follow-up under medical treatment, Group B patients had a worse survival under medical therapy than Group A patients, with additional independent prognostic value for Group A/B dichotomization by IEM in Group A (non-actionable) TTE-defined patients after multivariable adjustment (hazard ratio 5.3, confidence interval 1.39–20.3, p value=0.015). Conclusions IEM in patients with ambiguous AS severity can improve detection of patients who may benefit from early invasive therapy. Graphical Abstract Funding Acknowledgement Type of funding source: None

scholarly journals Survival and echocardiographic evaluation of dogs with idiopathic dilated cardiomyopathy treated with carvedilol

2010 ◽  
Vol 62 (3) ◽  
pp. 555-563 ◽  
Author(s):  
E.C. Soares ◽  
G.G. Pereira ◽  
L.C. Petrus ◽  
M. Leomil Neto ◽  
F.L. Yamaki ◽  
...  
Keyword(s):  
Dilated Cardiomyopathy ◽  
Ventricular Remodeling ◽  
Left Ventricular ◽  
Idiopathic Dilated Cardiomyopathy ◽  
P Value ◽  
Echocardiographic Evaluation ◽  
Before And After ◽  
Group A ◽  
The Stability ◽  
Group B

Sixty dogs with idiopathic dilated cardiomyopathy were randomly treated with traditional therapy - digitalis, diuretics, angiotensin-converting inhibitors - (group A) or treated with these drugs plus carvedilol (group B). Echocardiographic variables were measured before and after 3, 13, 26, and 52 weeks of treatment or until death. Comparisons between groups and time were performed. No significant differences between groups were found in the most of the echocardiographic variables. The left ventricular end-systolic diameter indexed to body surface area (LVESDi) increased significantly in the group A dogs compared to the group B animals. The survival of groups A and B dogs were not different (P-value=0.1137). In conclusion, the stability of the LVESDi observed in the group treated with carvedilol may represent the beneficial effect over the ventricular remodeling.

scholarly journals Impact of left ventricular outflow tract flow acceleration on aortic valve area calculation in patients with aortic stenosis

2019 ◽  
Vol 6 (4) ◽  
pp. 97-103 ◽  
Author(s):  
Andaleeb A Ahmed ◽  
Robina Matyal ◽  
Feroze Mahmood ◽  
Ruby Feng ◽  
Graham B Berry ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Stenosis ◽  
Continuity Equation ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Area Measurement ◽  
Aortic Valve Area ◽  
Flow Acceleration ◽  
The Impact ◽  
Valve Area

Objective Due to its circular shape, the area of the proximal left ventricular tract (PLVOT) adjacent to aortic valve can be derived from a single linear diameter. This is also the location of flow acceleration (FA) during systole, and pulse wave Doppler (PWD) sample volume in the PLVOT can lead to overestimation of velocity (V1) and the aortic valve area (AVA). Therefore, it is recommended to derive V1 from a region of laminar flow in the elliptical shaped distal LVOT (away from the annulus). Besides being inconsistent with the assumptions of continuity equation (CE), spatial difference in the location of flow and area measurement can result in inaccurate AVA calculation. We evaluated the impact of FA in the PLVOT on the accuracy of AVA by continuity equation (CE) in patients with aortic stenosis (AS). Methods CE-based AVA calculations were performed in patients with AS once with PWD-derived velocity time integral (VTI) in the distal LVOT (VTILVOT) and then in the PLVOT to obtain a FA velocity profile (FA-VTILVOT) for each patient. A paired sample t-test (P < 0.05) was conducted to compare the impact of FA-VTILVOT and VTILVOT on the calculation of AVA. Result There were 46 patients in the study. There was a 30.3% increase in the peak FA-VTILVOT as compared to the peak VTILVOT and AVA obtained by FA-VTILVOT was 29.1% higher than obtained by VTILVOT. Conclusion Accuracy of AVA can be significantly impacted by FA in the PLVOT. LVOT area should be measured with 3D imaging in the distal LVOT.

Contractile function in chronic gradually developing subcoronary aortic stenosis

1981 ◽  
Vol 240 (1) ◽  
pp. H80-H84
Author(s):  
B. A. Carabello ◽  
R. Mee ◽  
J. J. Collins ◽  
R. A. Kloner ◽  
D. Levin ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
Cardiac Hypertrophy ◽  
Cardiac Muscle ◽  
Animal Studies ◽  
Contractile Function ◽  
Pressure Overload ◽  
Left Ventricular ◽  
Stroke Work ◽  
Group A ◽  
Group B

Whether hypertrophied cardiac muscle functions normally or abnormally is a point of controversy in the literature. Most animal studies showing depressed performance of hypertrophied cardiac muscle have used experimental methods in which hypertrophy was produced by acutely imposing a pressure overload on the left or right ventricle, which may cause myocardial injury. To assess the possibility that chronic, slowly developing hypertrophy is associated with normal myocardial function, we developed an experimental model in which increased afterload is imposed gradually on the left ventricle in the dog. A snug band was placed around the aorta beneath the left coronary artery in puppies without producing a stenosis. As the puppies grew, relative aortic stenosis developed as increased cardiac output flowed across that fixed outflow area. One group (group A) of six puppies was banded early, whereas a second group (group B, five puppies) was banded late and served as controls. Left ventricular weight (g) to body weight (kg) ratio remained normal in group B animals (3.9 +/- 0.14), whereas this ratio was increased to 5.3 +/- 0.24 (P < 0.001) in group A animals indicating development of moderate cardiac hypertrophy. Ejection fraction, dP/dt, Vcf, and stroke work per gram of myocardium were virtually identical in both groups. We conclude that moderate, gradually developing cardiac hypertrophy as produced by this model is associated with normal myocardial contractile performance.

scholarly journals Observations during the COVID-19 pandemic in chronic heart failure patients with complex devices in a tertiary care cardiac centre using the HeartLogic software

EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
T Jinadu ◽  
R Dowd ◽  
L Bradley ◽  
E Painter ◽  
S Hughes ◽  
...  
Keyword(s):  
Heart Failure ◽  
Left Ventricular Systolic Dysfunction ◽  
Tertiary Care ◽  
Total Duration ◽  
Left Ventricular ◽  
Favourable Effect ◽  
Cardiac Centre ◽  
Group A ◽  
Group B ◽  
The Impact

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Decompensation of heart failure leading (HF) to hospitalisation is the single most important drain on healthcare resources when managing patients with left ventricular systolic dysfunction. Cardiac resynchronisation therapy with/without defibrillators (CRT-P/D) decreases hospitalisation due to HF and improves survival while implantable cardiac defibrillators (ICD"s) have a favourable effect on the former. Proprietary software algorithms embedded in these complex devices give an early warning to clinicians when decompensation of HF is imminent allowing preventative action to be undertaken. HeartLogic (HL) is one such new algorithm in Boston Scientific CRT-D/ICD devices using multiple sensors to track 5 physiological parameters, combining them into one composite Index, with an Alert being triggered if the Index is &gt;16. The COVID-19 pandemic, due to multiple reasons, resulted in a significant decrease in availability of routine HF services in the United Kingdom, especially during the initial lockdown period from 23rd March to 1st July 2020. Aim To assess the impact of the COVID-19 pandemic, using HL, in patients with HF and complex devices.  Materials and Methods Retrospective analysis of patients in a tertiary care cardiac centre in whom the HL software had been activated in March/April 2019 (n = 49) and comparison of those with (Group A n = 21) and without (Group B n = 28) an Alert (HLA) during the COVID-19 pandemic.  Results (Table): Whole cohort n = 49. Age:  72 ± 12 years, Median: 75, Range: 36-95. 36/49 (73.5%) males. Type of device implanted: Resonate X4 CRT-D: 28/49 (57.1%); Momentum CRT-D: 8/49 (16.3%); Resonate ICD: 13/49 (26.5%). Ischaemic aetiology of HF: 35/49 (71.4%), Total duration of HL monitoring: 632 ± 7 days (median: 632; range: 626-672).  There was no difference in the age, gender, and type of device implanted between Group A and Group B. Over nearly ∼1 year of monitoring in each of the groups, Group A had more unstable HF with 10/21 (47.6%) having their first HLA during the pandemic. Multiple HLA"s, longer period in HLA and those with ischaemic aetiology of HF were higher in Group A. 17/40 (42.5%) HLA"s in Group A were within the first lockdown period (March - July). 24/28 (85.7%) patients in Group B had no HLA"s either before or during the pandemic. There was no difference in the HLA score between Groups A and B. Conclusion In this limited group of patients with a medium term follow-up, using the HeartLogic software, patients with ischaemic aetiology of HF and those with more HLA"s prior to the pandemic did worse than those who no HLA"s. First HLA"s, multiple alerts and longer duration of alerts in this group of patients suggests a lack of access to adequate HF services during the pandemic. It has implications with regard to how HF services are configured in future whenever resources are constrained. Abstract Figure.

scholarly journals Modified Dietetic Skim And Cotton Sheet Oil Dan Susu Formula 75 Terhadap Berat Badan Anak Balita Gizi Kurang

2021 ◽  
Vol 16 (3) ◽  
pp. 656-661
Author(s):  
Pembronia Nona Fembi ◽  
Yosefina Nelista
Keyword(s):  
Body Weight ◽  
T Test ◽  
The Body ◽  
Nutritional Deficiencies ◽  
P Value ◽  
Malnourished Children ◽  
Group A ◽  
Group B ◽  
The Impact ◽  
Paired T Test

  Children under five are a group that is prone to malnutrition because they are still experiencing a growth cycle, a development that requires more nutrients than other age groups. The impact of nutritional deficiencies; low body resistance, the body is susceptible to infectious diseases. The purpose of this study was to analyze the effectiveness of giving modified dietetic skim and cotton sheet oil (MODISCO) and Formula-75 milk to increase body weight of malnourished children in Puskesmas Waigete, Sikka Regency. The type of research used is Quasy experimental pretest and posttest design. The population of this research was 181 underweight children with malnutrition. The sampling technique used purposive sampling. The sample of this study was 24 underweight children with malnutrition, divided into 2 (two), namely group A was given MODISCO intervention and group B was given Formula-75 milk. The intervention was given once a day for 1 month at a dose of 150 kcal / kgbb / day for MODISCO and 1000 ml per day for 75 formula milk. Data analysis used Paired t-Test and Independent Samples Test. Paired T-Test analysis, groups A and B obtained P-value (0.000) <0.05, it was concluded that there was an increase in body weight after being given MODISCO and Formula-75 milk. Based on the analysis of the Independent Samples Test, groups A and B obtained a P-value (0.876)> 0.05, it was concluded that there was no difference in body weight for under-nourished toddlers who were given MODISCO and Formula-75 milk. There is no difference in body weight of malnourished underweight children in group A and group B, so it is concluded that MODISCO and Formula-75 milk can increase the weight of malnourished children underweight. The results of this study are an additional intervention to increase the weight of children under malnutrition.

scholarly journals Comparative evaluation of levetiracetam and valproic acid as monotherapy on cognitive impairment in patients of epilepsy

2019 ◽  
Vol 8 (4) ◽  
pp. 674
Author(s):  
Shreshth Khanna ◽  
Suman Bala ◽  
Yashpal Singh ◽  
Taruna Sharma ◽  
Juhi Kalra ◽  
...  
Keyword(s):  
Valproic Acid ◽  
Cognitive Impairment ◽  
Cognitive Decline ◽  
P Value ◽  
Cognitive Improvement ◽  
Institutional Ethics ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
The Impact

Background: Cognitive decline with AEDs (Anti-epileptic drugs) is associated with learning and memory deficits especially in the younger age group. The data regarding the impact of levetiracetam and valproic acid as monotherapy on cognition in epileptic patients is scarce. The present study was done for evaluation of cognitive decline associated with the use of AEDs.Methods: Present study was a prospective study on 60 patients on AEDs for a period of 12 weeks. Patients were enrolled from the Department of Neurology, Swami Rama Himalayan University, Dehradun, Uttarakhand, India and divided into group A (levetiracetam) and group B (valproic acid) with 30 patients in each group. Permission from the institutional ethics committee and written informed consent was taken from all the patients. They were analyzed for cognitive impairment using MMSE and MoCA scales at baseline and 12 weeks.Results: The mean duration of disease was 2.13±1.1 years and 2.08±1.1 years and mean age of the patients was 14.67±1.9 years in group A and 16.20±1.6 years in group B. GTCS was present in 31 patients (52%) followed by partial seizures in 29 patients (48%). The mean change in the MMSE scores from baseline to 12 weeks was significant in group A 1.30±1.1 (p value <0.05) and change group B was -0.20±1.4 not statistically significant. The mean change was observed in MoCA scores from baseline to 12 weeks was significant in both groups A and B by 1.17±1.1 and -0.70±1.1 respectively (P value <0.05).Conclusions: Patients on levetiracetam showed cognitive improvement, whereas patients on valproic acid showed a decline in the MMSE and MoCA scores.

scholarly journals 1161 Baseline echocardiographic parameters associated with reintervention in children with aortic valve stenosis following balloon aortic valvuloplasty

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
K Papneja ◽  
Z Blatman ◽  
I D Kawpeng ◽  
J Wheatley ◽  
H Osce ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Stenosis ◽  
Circumferential Strain ◽  
Ventricular Outflow Tract ◽  
Aortic Insufficiency ◽  
Left Ventricular ◽  
Balloon Aortic Valvuloplasty ◽  
Aortic Valvuloplasty ◽  
The Impact

Abstract Introduction Aortic valve (AV) stenosis is the most common type of congenital left ventricular outflow tract obstruction. Short-term outcomes following balloon aortic valvuloplasty (BAV) including residual aortic stenosis, aortic insufficiency, and procedural complications have been established. The impact of pre-intervention AV characteristics on long-term outcomes has not been well studied. Purpose The aim of this study was to determine the relationship between the initial parameters on baseline echocardiogram and the time to reintervention in children with AV stenosis following BAV. Methods Children from the newborn period to 18 years of age with AV stenosis who underwent BAV from 2004-2012 were included. Patients with aortic insufficiency prior to BAV, complex congenital heart lesions, or less than two accessible follow-up echocardiograms were excluded. Baseline and serial echocardiographic data pertaining to aortic valve and LV size and function was retrospectively collected until December 2017 or until the first reintervention. Time to reintervention or death was evaluated. Results Among the 98 enrolled patients, the median [IQR] age at BAV was 2.8 months [0.2-75]. The median [IQR] duration of follow-up was 6.8 [1.9-9.0] years. Eighty-nine (83%) patients had bicuspid valve morphology and the median [IQR] peak-to-peak catheterization gradient prior to BAV was 49 [34-65] mmHg. The cumulative proportion [95% CI] of reintervention at 5 years following BAV was 33.7% [23.6%, 42.4%]. Primary indications for reintervention were aortic stenosis (57%), aortic insufficiency (14%), or mixed valve disease (30%). Reinterventions included repeat BAV (49%), AV repair (15%), and AV replacement (36%). Increased LVEF at baseline as well as increased mean LV circumferential strain at baseline were associated with decreased risk of reintervention (HR [95% CI] (1 unit increments): 0.974 [0.959-0.989], p &lt; 0.001; 0.939 [0.884-0.997], p = 0.041 respectively). Increased AV annulus z-score was also associated with decreased risk of reintervention (HR [95% CI] (1 unit increments): 0.806 [0.698-0.93], p = 0.003). Conclusions Our results demonstrate that better left ventricular function at baseline, measured by LVEF and mean LV circumferential strain, is associated with a decreased risk of reintervention in neonates and children following BAV. We have also shown that a bigger AV annulus prior to BAV is associated with a decreased risk of reintervention.

P909Echocardiographic Assessment of Left Ventricular Function in Patients with Aortic Stenosis and the short-term effects after intervention

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Alfarih ◽  
C Leu ◽  
J Moon ◽  
A Hughes ◽  
P Nihoyannopoulos ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Stenosis ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Left Ventricular ◽  
Myocardial Deformation ◽  
P Value ◽  
Compensatory Mechanisms ◽  
Surgical Aortic Valve Replacement ◽  
The Impact

Abstract Introduction Aortic stenosis (AS) is the most prevalent form of acquired valvular heart disease, it affects ∼2% of people aged over 75. Series of compensatory mechanisms occur, in order for LV to adapt to high pressure overload. Aortic valve replacement has been the mainstay AS treatment either surgically or percutaneously. The evaluation of myocardial strains after Transcatheter Aortic Valve Implantation (TAVI) and Surgical Aortic Valve Replacement (SAVR) is still underexplored and there is no single study to date scouting the difference between TAVI and SAVR. Aim To assess the impact of unloading LV after TAVI and SAVR on LV remodelling. Methods In this prospective study, we have recruited 111 patients (75±11 years, 63% were females) with varying degrees of aortic stenosis. Of the 111 patients, 43 patients and 11 patients underwent TAVI and SAVR respectively between November 2017 and May 2018. Demographics, clinical and echocardiographic measurements along with speckle tracking parameters were recorded for all participants and again 4±2 weeks after intervention. Results Pre-TAVI LV-GLS mean was −10.8±3.5% and after implantation of aortic prosthesis immediate improvement of the myocardial deformation to −13.98±2.9% was observed after one month of the intervention, mean difference of −3.16% following procedure. There was an evidence of significant improvement in LV-GRS after TAVI (44.86±12.9% to 49.77±10.8%, P value= 0.047). Per contra, when comparing pre and post TAVI LV-GCS, no statistical evidence was noted. However, a difference of −2.4% in GCS following the intervention might be clinically important, but no previous evidence can support this. This is attributed to the poor reproducibility and yet not available standardisation. Table 1 Variables TAVI (n=43) SAVR (n=11) P value† Pre Post P* value Pre Post P* value GLS (%) −10.82±3.5 −13.98±2.9 <0.001 −12.75±4.3 −16.1±2 0.021 0.152 GCS (%) −30.1±8.1 −32.49±9.2 0.134 −27±9.8 −33.9±4.69 0.063 0.062 GRS (%) 44.86±12.9 49.77±10.8 0.047 36.6±13.3 44.97±4.9 0.074 0.058 Data are expressed as mean ± SD. Comparisons were performed using paired Student's t tests. *Pre and post intervention. †Post TAVI vs. post SAVR. Comparison done using unpaired t test of the differences. Conclusion Significant improvement was evident in myocardial deformation parameters – in particular GLS – after weeks of the intervention demonstrating a strong evidence of reversed remodelling following SAVR and TAVI.

scholarly journals The Impact of Preemptive Perianal Anaesthetic Block in Open Haemorrhoidectomy – a randomised controlled trial

2021 ◽  
Vol 15 (9) ◽  
pp. 2165-2167
Author(s):  
Wajeeha I. Andrabi ◽  
M Asadullah Khawaja ◽  
K. Fatima ◽  
S I. Hussain Andrabi ◽  
A. Shafique ◽  
...  
Keyword(s):  
Placebo Group ◽  
Hospital Stay ◽  
Pain Intensity ◽  
P Value ◽  
Open Hemorrhoidectomy ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
The Impact ◽  
Mean Time

Background: the study was conducted to analyze the efficacy of 0.75% ropicaine at perianal block for open haemrrhoidectomy with regards to pain intensity, first demand of analgesia and hospital stay. Method: 50 patients were selected for open haemrrhoidectomy under GA which were divided into two groups.it was a randomized control trial in which sealed envelope method was used for the group delegation in which Group A was designated to the patients having the perianal block with 0.75% ropivacaine while the group B was the placebo group having normal saline injected in the perianal region. The variables compared were the first demand of analgesia, pain intensity and the duration of the hospital stay. In order to make the site of injection more authentic the injections were sited under ultrasound guidance. Results: The pain intensity which was analyzed with the visual analogue score (VAS) had a median of 3.8 (high=6, low=3) in group A while 5.5 (high=8, low=4) in the Group B with the p value of < 0.05. The mean time recorded for the first demand of analgesia was 6.20 ± 1.20 hours in the Group A which had improved from 1.20 ± 1.0 hours in the Placebo Group while the p value was < 0.001, while the mean time of hospital stay got reduced from 22.5±3.30 hours to 12.4 ± 3.10 hours with the significant p value of < 0.002. Conclusion: It was observed that with preemptive analgesia with 0.75% ropivacaine administered led to a substantial reduction in pain perception, request for an analgesic and hospital stay. Therefore it is appropriate to administer it before open hemorrhoidectomy. Keywords: preemptive anaesthesia, local anesthesia, postoperative pain, ropivacaine, open hemorrhoidectomy

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