scholarly journals Portal Vein Pulsatility as a Dynamic Marker of Venous Congestion Following Cardiac Surgery: An Interventional Study Using Positive End-Expiratory Pressure

2021 ◽  
Vol 10 (24) ◽  
pp. 5810
Author(s):  
Pierre Huette ◽  
Pierre-Grégoire Guinot ◽  
Guillaume Haye ◽  
Mouhamed Djahoum Moussa ◽  
Christophe Beyls ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Cardiac Surgery ◽  
Portal Vein ◽  
Venous Pressure ◽  
Maximum Velocity ◽  
Venous Congestion ◽  
University Hospital ◽  
Positive End Expiratory Pressure ◽  
Hospital Patients ◽  
Doppler Evaluation

We aimed to assess variations in the portal vein pulsatility index (PI) during mechanical ventilation following cardiac surgery. Method. After ethical approval, we conducted a prospective monocentric study at Amiens University Hospital. Patients under mechanical ventilation following cardiac surgery were enrolled. Doppler evaluation of the portal vein (PV) was performed by transthoracic echography. The maximum velocity (VMAX) and minimum velocity (VMIN) of the PV were measured in pulsed Doppler mode. The PI was calculated using the following formula (VMAX − VMIN)/(VMax). A positive end-expiratory pressure (PEEP) incremental trial was performed from 0 to 15 cmH2O, with increments of 5 cmH2O. The PI (%) was assessed at baseline and PEEP 5, 10, and 15 cmH2O. Echocardiographic and hemodynamic parameters were recorded. Results. In total, 144 patients were screened from February 2018 to March 2019 and 29 were enrolled. Central venous pressure significantly increased for each PEEP increment. Stroke volumes were significantly lower after PEEP incrementation, with 52 mL (50–55) at PEEP 0 cmH2O and 30 mL (25–45) at PEEP 15 cmH2O, (p < 0.0001). The PI significantly increased with PEEP incrementation, from 9% (5–15) at PEEP 0 cmH2O to 15% (5–22) at PEEP 5 cmH2O, 34% (23–44) at PEEP 10 cmH2O, and 45% (25–49) at PEEP 15 cmH2O (p < 0.001). Conclusion. In the present study, PI appears to be a dynamic marker of the interaction between mechanical ventilation and right heart pressure after cardiac surgery. The PI could be a useful noninvasive tool to monitor venous congestion associated with mechanical ventilation.

scholarly journals The clinical value of passive leg raising plus ultrasound to predict fluid responsiveness in children after cardiac surgery

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Deqiang Luo ◽  
Wei Dai ◽  
Lei Lei ◽  
Xueying Cai
Keyword(s):  
Mechanical Ventilation ◽  
Cardiac Surgery ◽  
Fluid Responsiveness ◽  
Venous Pressure ◽  
Passive Leg Raising ◽  
Monitoring Methods ◽  
Clinical Value ◽  
Predict Fluid Responsiveness ◽  
Congenital Cardiac Surgery ◽  
Ultrasound Evaluation

Abstract Background There are few non-invasive monitoring methods that can reliably predict fluid responsiveness (FR) in children. Here, we interrogate the value of doppler ultrasound evaluation of passive leg raising (PLR)-induced changes in stroke volume (SV) and cardiac output (CO) as a predictor of FR in children with mechanical ventilation after congenital cardiac surgery. Methods A total of 40 children with mechanical ventilation following congenital cardiac surgery, who required volume expansion (VE) were included in this study. Hemodynamic parameters such as heart rate (HR), mean arterial pressure (MAP), SV, and central venous pressure (CVP) were monitored before and after PLR and VE. Besides, we assessed changes in SV and CO by bedside ultrasound. Patients showing > 10 % increase in SV in response to VE were considered to be responders (26 patients), while the rest (14 patients) were defined as non-responders. Results Our data demonstrated that ΔSV-PLR and ΔCO- PLR were positively correlated with ΔSV-VE (r = 0.683, p < 0.001 and r = 0.374, p = 0.017, respectively), and the area under the ROC curve (AUC) of ΔSV-PLR was 0.879 (95 % CI [0.745 1.000], p < 0.001). The best cut-off value for ΔSV-PLR in predicting FR was 13 %, with its sensitivity and specificity were 81.8 and 86.3 %, respectively. ΔCVP, ΔHR, and ΔMAP were weak predictors of FR in the children. Conclusions Our study demonstrated that SV changes, as evaluated by noninvasive ultrasound combined with PLR, could effectively evaluate FR in children under mechanical ventilation after congenital cardiac surgery.

scholarly journals The clinical value of passive leg raising plus ultrasound to predict fluid responsiveness in children after cardiac surgery

2020 ◽  
Author(s):  
Deqiang Luo ◽  
Wei Dai ◽  
Lei Lei ◽  
xueying cai
Keyword(s):  
Mechanical Ventilation ◽  
Cardiac Surgery ◽  
Fluid Responsiveness ◽  
Heart Surgery ◽  
Venous Pressure ◽  
Passive Leg Raising ◽  
Monitoring Methods ◽  
Clinical Value ◽  
Congenital Cardiac Surgery ◽  
Ultrasound Evaluation

Abstract Background: There are few non-invasive monitoring methods that can reliably predict FR in children, this article aims to investigate the value of the doppler ultrasound evaluation of passive leg raising (PLR) induced changes in stroke volume (SV) and cardiac output(CO) in predicting the fluid responsiveness (FR) in children with mechanical ventilation after congenital cardiac surgery. Methods: A total of 40 children with mechanical ventilation after congenital cardiac surgery who requiring volume expansion (VE) were eventually included in this observational study. Hemodynamic parameters such as heart rate (HR), blood pressure, SV, and central venous pressure (CVP) were monitored before and after PLR and VE respectively, and changes of SV and CO were assessed by bedside ultrasound as well. The patients showing an increase in SV >10% in response to VE were considered responders (26 patients), and the rest were defined as nonresponders (14 patients). Results: The results showed that ΔSV-PLR and ΔCO- PLR were positively correlated with ΔSV-VE (r = 0.683, P<0.001 and r= 0.374, P = 0.017, respectively), and the area under the ROC curve (AUC) of ΔSV-PLR was 0.879 (95% CI [0.745 1.000], P < 0.001). The best cut-off value of ΔSV-PLR for predicting FR was 13%, with its sensitivity and specificity was 81.8% and 86.3%, respectively. ΔCVP, ΔHR, and ΔMAP were weak predictive FR in children patients. Conclusion: Our study demonstrated that SV changes assessed by noninvasive ultrasound combined with PLR could be a feasible method for evaluating fluid responsiveness in children with congenital cardiac surgery and mechanical ventilation. Keywords: congenital heart surgery; fluid responsiveness; passive leg raising; ultrasound.

scholarly journals The clinical value of passive leg raising plus ultrasound to predict fluid responsiveness in children after cardiac surgery

2020 ◽  
Author(s):  
Deqiang Luo ◽  
Wei Dai ◽  
Lei Lei ◽  
xueying cai
Keyword(s):  
Mechanical Ventilation ◽  
Cardiac Surgery ◽  
Fluid Responsiveness ◽  
Venous Pressure ◽  
Passive Leg Raising ◽  
Monitoring Methods ◽  
Clinical Value ◽  
Predict Fluid Responsiveness ◽  
Congenital Cardiac Surgery ◽  
Ultrasound Evaluation

Abstract Background: There are few non-invasive monitoring methods that can reliably predict fluid responsiveness (FR) in children. Here, we interrogate the value of doppler ultrasound evaluation of passive leg raising (PLR)-induced changes in stroke volume (SV) and cardiac output (CO) as a predictor of FR in children with mechanical ventilation after congenital cardiac surgery. Methods: A total of 40 children with mechanical ventilation following congenital cardiac surgery, who required volume expansion (VE) were included in this study. Hemodynamic parameters such as heart rate (HR), mean arterial pressure (MAP), SV, and central venous pressure (CVP) were monitored before and after PLR and VE. Besides, we assessed changes in SV and CO by bedside ultrasound. Patients showing >10% increase in SV in response to VE were considered to be responders (26 patients), while the rest (14 patients) were defined as non-responders. Results: Our data demonstrated that ΔSV-PLR and ΔCO- PLR were positively correlated with ΔSV-VE (r = 0.683, p <0.001 and r = 0.374, p = 0.017, respectively), and the area under the ROC curve (AUC) of ΔSV-PLR was 0.879 (95% CI [0.745 1.000], p < 0.001). The best cut-off value for ΔSV-PLR in predicting FR was 13%, with its sensitivity and specificity were 81.8% and 86.3%, respectively. ΔCVP, ΔHR, and ΔMAP were weak predictors of FR in the children. Conclusion: Our study demonstrated that SV changes, as evaluated by noninvasive ultrasound combined with PLR, could effectively evaluate FR in children under mechanical ventilation following congenital cardiac surgery.

scholarly journals Efek Perbedaan Ventilasi Mekanik Positive End Expiratory Pressure (PEEP) Low dan Moderate terhadap Rasio PaO2/FiO2 Pascabedah pada Kraniotomi Elektif

2020 ◽  
Vol 9 (2) ◽  
pp. 141-147
Author(s):  
Muhammad Rizk ◽  
◽  
M. Sofyan Harahap ◽  
Keyword(s):  
Mechanical Ventilation ◽  
Blood Gas Analysis ◽  
Pulmonary Complications ◽  
Gas Analysis ◽  
University Hospital ◽  
Normal Lung ◽  
Positive End Expiratory Pressure ◽  
Patients Âgés ◽  
Post Induction ◽  
Significant Difference

Background and Objective: Elective craniotomy is associated with high incidence of postoperative pulmonary complications (PPC, 25%) and mortality (10%). We determined to study the effect of Positive End Expiratory Pressure (PEEP) 5 cmH2O and 8 cmH2O to postoperative PaO2 / FiO2 ratio (PF ratio) in elective craniotomy. Subject and Methods: This randomized clinical trial was at a university hospital in Indonesia. Fifty two elective craniotomy patients (ages 17–55 years, surgical duration> 4 hours, normal lung) were randomized into 2 intervention groups: perioperative mechanical ventilation with low PEEP (5 cmH2O) or moderate PEEP (8 cmH2O). The hypothesis of this study is that the ratio of PaO2 / FiO2 in the moderate PEEP group is higher than low PEEP. Blood gas analysis was performed 24 hours post induction. Results: This study did not show a significant difference in the PaO2/FiO2 ratio between the low PEEP and moderate PEEP groups. The PaO2 / FiO2 ratios of the low PEEP and moderate PEEP groups were respectively: at 24 hours post induction, 429.34 ± 72.25 mmHg and 458.59 ± 71.11mmHg (p = 0.147). Conclusions: Comparison of low PEEP and moderate PEEP in perioperative mechanical ventilation did not result in a significant difference in the value of the PaO2/FiO2 ratio at 24 hours post induction

Intestinal parasite survey of Kyungpook National University Hospital patients

1971 ◽  
Vol 9 (2) ◽  
pp. 47 ◽  
Author(s):  
Dong Wik Choi ◽  
Sung Deok Park ◽  
Jae Woun Kim ◽  
Doo Hong Ahn ◽  
Young Myung Kim
Keyword(s):  
Intestinal Parasite ◽  
University Hospital ◽  
Hospital Patients ◽  
National University

Analysis of Nosocomial Infections in Post–Cardiac Surgery Extracorporeal Membrane Oxygenation Support Therapy

2018 ◽  
Vol 21 (5) ◽  
pp. E387-E391 ◽  
Author(s):  
Binfei Li ◽  
Geqin Sun ◽  
Zhou Cheng ◽  
Chuangchuang Mei ◽  
Xiaozu Liao ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Cardiac Surgery ◽  
Extracorporeal Membrane Oxygenation ◽  
Hospital Stay ◽  
Nosocomial Infections ◽  
Total Hospital ◽  
Secondary Infections ◽  
Total Hospital Stay ◽  
Mechanical Ventilation Time ◽  
Post Cardiac Surgery

Objectives: This study aims to analyze the nosocomial infection factors in post–cardiac surgery extracorporeal membrane oxygenation (ECMO) supportive treatment (pCS-ECMO). Methods: The clinical data of the pCS-ECMO patients who obtained nosocomial infections (NI) were collected and analyzed retrospectively. Among the 74 pCS-ECMO patients, 30 occurred with NI, accounting for 40.5%; a total of 38 pathogens were isolated, including 22 strains of Gram-negative bacteria (57.9%), 15 strains of Gram-positive bacteria (39.5%), and 1 fungus (2.6%). Results: Multidrug-resistant strains were highly concentrated, among which Acinetobacter baumannii and various coagulase-negative staphylococci were the main types; NI was related to mechanical ventilation time, intensive care unit (ICU) residence, ECMO duration, and total hospital stay, and the differences were statistically significant (P < .05). The binary logistic regression analysis indicated that ECMO duration was a potential independent risk factor (OR = 0.992, P = .045, 95.0% CI = 0.984-1.000). Conclusions: There existed significant correlations between the secondary infections of pCS-ECMO and mechanical ventilation time, ICU residence, ECMO duration, and total hospital stay; therefore, hospitals should prepare appropriate preventive measures to reduce the incidence of ECMO secondary infections.

CLINICAL FEATURES, INDICATIONS AND RESULT OF TRACHEOTOMY

2017 ◽  
pp. 50-55
Author(s):  
Duc Luu Ngo ◽  
Tu The Nguyen ◽  
Manh Hung Ho ◽  
Thanh Thai Le
Keyword(s):  
Clinical Features ◽  
University Hospital ◽  
Female Ratio ◽  
Tube Obstruction ◽  
Level Ii ◽  
Study Results ◽  
Male Female Ratio ◽  
Hospital Patients ◽  
Level I

Background: This study aims to survey some clinical features, indications and results of tracheotomy at Hue Central Hospital and Hue University Hospital. Patients and method: Studying on 77 patients who underwent tracheotomy at all of departments and designed as an prospective, descriptive and interventional study. Results: Male-female ratio was 4/1. Mean age was 49 years. Career: farmer 44.2%, worker 27.2%, officials 14.3%, student 7.8%, other jobs 6.5%. Respiratory condition before tracheotomy: underwent intubation 62.3%, didn’t undergo intubation 37.7%. Period of stay of endotracheal tube: 1-5 days 29.2%, 6-14 days 52.1%, >14 days 18.7%. Levels of dyspnea before tracheotomy: level I 41.4%, level II 48.3%, level III 0%, 10.3% of cases didn’t have dyspnea. Twenty cases (26%) were performed as an emergency while fifty seven (74%) as elective produces. Classic indications (37.7%) and modern indications (62.3%). On the bases of the site, we divided tracheostomy into three groups: high (0%), mid (25.3%) and low (74.7%). During follow-up, 44 complications occurred in 29 patients (37.7%). Tracheobronchitis 14.3%, tube obstruction 13%, subcutaneous empysema 10.4%, hemorrhage 5%, diffcult decannulation 5.2%, tube displacement 3.9%, canule watery past 2.6%, wound infection 1.3%. The final result after tracheotomy 3 months: there are 33 patients (42.9%) were successfully decannulated. In the 33 patients who were successfully decannulated: the duration of tracheotomy ranged from 1 day to 90 days, beautiful scar (51.5%), medium scar (36.4%), bad scar (12.1%). Conclusions: In tracheotomy male were more than female, adult were more than children. The main indication was morden indication. Tracheobronchitis and tube obstruction were more common than other complications. Key words: Tracheotomy

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