scholarly journals A cross-sectional study on the comparison of five ultrasound measurements to estimate central venous pressure in spontaneously breathing and ventilated patients

2015 ◽  
Vol 3 (S1) ◽  
Author(s):  
N Parenti ◽  
ML Bacchi Reggiani ◽  
MG Vespignani ◽  
P Vernocchi ◽  
M Lanna ◽  
...  
Keyword(s):  
Central Venous Pressure ◽  
Venous Pressure ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Central Venous ◽  
Cross Sectional ◽  
Ultrasound Measurements ◽  
Spontaneously Breathing ◽  
Ventilated Patients

scholarly journals Respiratory variation of inferior vena cava diameter and central venous pressure in ventilated and non-ventilated children in fluid refractory septic shock: an observational study

2019 ◽  
Vol 6 (5) ◽  
pp. 1947
Author(s):  
Mohd Kashif Ali ◽  
Eeman Naim
Keyword(s):  
Septic Shock ◽  
Inferior Vena Cava ◽  
Central Venous Pressure ◽  
Inferior Vena ◽  
Venous Pressure ◽  
Vena Cava ◽  
Central Venous ◽  
Mechanically Ventilated ◽  
Spontaneously Breathing ◽  
Ventilated Patients

Background: Ultrasound guided fluid assessment in management of septic shock has come up as an adjunct to the current gold standard Central Venous Pressure monitoring. This study was designed to observe the respiro-phasic variation of IVC diameter (RV-IVCD) in invasively mechanically ventilated and spontaneously breathing paediatric patients of fluid refractory septic shock.Methods: This was a prospective observational study done at Paediatric intensive Care Unit (PICU) in Paediatric ward of Jawaharlal Nehru Medical College and Hospital (JNMCH) from February 2016 to June 2017. 107 consecutive patients between 1 year to 16 years age who were in shock despite 40ml/kg of fluid administration were included. Inferior Vena Cava (IVC) diameters were measured at end-expiration and end inspiration and the IVC collapsibility index was calculated. Simultaneously Central Venous Pressure (CVP) was recorded. Both values were obtained in ventilated and non-ventilated patients. Data was analysed to determine to look for the profile of RV-IVCD and CVP in ventilated and non-ventilated cases.Results: Out of 107 patients, 91 were on invasive mechanical ventilation and 16 patients were spontaneously breathing. There was a strong negative correlation between central venous pressure (CVP) and inferior vena cava collapsibility (RV-IVCD) in both spontaneously breathing (-0.810) and mechanically ventilated patients (-0.700). Negative correlation was significant in both study groups in CVP <8 mmHg and only in spontaneously breathing patients in CVP 8-12 mmHg range. IVC collapsibility showed a decreasing trend with rising CVP in both spontaneously breathing and mechanically ventilated patients.Conclusion: Ultrasonography guided IVCCI appears to be a valuable index in assessing fluid status in both spontaneously breathing and mechanically ventilated septic shock patients. However, more data is required from the paediatric population so as to define it as standard of practice.

scholarly journals Excess fluid volume: clinical validation in patients with decompensated heart failure

2011 ◽  
Vol 19 (3) ◽  
pp. 540-547 ◽  
Author(s):  
Quenia Camille Soares Martins ◽  
Graziella Badin Aliti ◽  
Joelza Chisté Linhares ◽  
Eneida Rejane Rabelo
Keyword(s):  
Heart Failure ◽  
Jugular Vein ◽  
Venous Pressure ◽  
Decompensated Heart Failure ◽  
Cross Sectional Study ◽  
Fluid Volume ◽  
University Hospital ◽  
Central Venous ◽  
Cross Sectional ◽  
Nursing Diagnosis

This cross-sectional study aimed to clinically validate the defining characteristics of the Nursing Diagnosis Excess Fluid Volume in patients with decompensated heart failure. The validation model used follows the model of Fehring. The subjects were 32 patients at a university hospital in Rio Grande do Sul. The average age was 60.5 ± 14.3 years old. The defining characteristics with higher reliability index (R): R ≥ 0.80 were: dyspnea, orthopnea, edema, positive hepatojugular reflex, paroxysmal nocturnal dyspnea, pulmonary congestion and elevated central venous pressure, and minor or secondary, R> 0.50 to 0.79: weight gain, hepatomegaly, jugular vein distention, crackles, oliguria, decreased hematocrit and hemoglobin. This study indicates that the defining characteristics with R> 0.50 and 1 were validated for the diagnosis Excess Fluid Volume.

scholarly journals A Novel Objective Approach Towards Physicians' Knowledge and Practice Patterns to Optimize Central Venous Catheter Placement: A Cross-sectional Study

2020 ◽  
Keyword(s):  
Intensive Care ◽  
Central Venous Catheter ◽  
Venous Catheter ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Clinical Practices ◽  
Central Venous ◽  
Cross Sectional ◽  
Study Objective ◽  
Catheter Tip

Study objective: Central venous catheterization is an essential component of intensive care of critically ill patients, and proper positioning of the catheter is essential to prevent position-related complications. This study was conducted by using digital tape measurement to objectively assess clinician preferences for central venous catheter positioning based on specific position levels and landmarks on post-procedural chest radiographs. Design: A cross-sectional study using electronic questionnaire survey. Setting: Single academic teaching hospital participated in this study. Participants: The study enrolled 276 physicians from multiple clinical disciplines. Interventions: None. Measurements: A seven-level reference system labeled on a sample chest radiograph was used to identify the acceptable lower and upper limits and landmarks used to determine the optimal central venous catheter tip position as well as the pattern of clinical practices based on the specialty and level of experience of participants. Main results: Among the 276 respondents, the ratio of cumulative acceptance for the lower and upper catheter tip limit was 62% and 66.3% within a 4-cm range below or above the carina, respectively. Intensive care unit (ICU) physicians showed a greater tendency to choose a catheter tip 4 cm below and 6 cm above the carina (p = 0.004 and 0.002, respectively) as did experienced physicians (p = 0.007 and < 0.001, respectively). The commonest reason for catheter tip withdrawal was arrhythmia (50% of cases). Physicians in the ICU and experienced physicians were more concerned about the risk of cardiac perforation than other respondents (p < 0.001 and < 0.001, respectively). The carina was the most commonly used landmark in 71.7% of all physicians, although 50% of radiologists also used other landmarks. Conclusions: The acceptable limit of the catheter tip is 4 cm above and below the carina (-4 to +4), as determined on chest radiography, without a need for tip adjustment.

scholarly journals IMPACT OF VENTILATOR MODEL ON MORTALITY: A RETROSPECTIVE CROSS-SECTIONAL STUDY IN 147 MECHANICALLY VENTILATED PATIENTS WITH COVID-19 ARDS

CHEST Journal ◽  
2020 ◽  
Vol 158 (4) ◽  
pp. A617
Author(s):  
Christian Castaneda ◽  
Christina Jee Ah Rhee ◽  
Albert Magh ◽  
Christine Eng ◽  
Jack Mann ◽  
...  
Keyword(s):  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Ventilated Patients

scholarly journals Pre-induction translabial ultrasound measurements in predicting mode of delivery compared to bishop score: a cross-sectional study

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Soghra Khazardoost ◽  
Fahimeh Ghotbizadeh Vahdani ◽  
Sahar Latifi ◽  
Sedighe Borna ◽  
Maryam Tahani ◽  
...  
Keyword(s):  
Mode Of Delivery ◽  
Cross Sectional Study ◽  
Translabial Ultrasound ◽  
Bishop Score ◽  
Sectional Study ◽  
Cross Sectional ◽  
Ultrasound Measurements

scholarly journals Spectral characteristics of the internal jugular vein and central venous pressure pulses: a proof of concept study

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Clive Beggs ◽  
Valentina Tavoni ◽  
Erica Menegatti ◽  
Mirko Tessari ◽  
Riccardo Ragazzi ◽  
...  
Keyword(s):  
Central Venous Pressure ◽  
Venous Pressure ◽  
Spectral Characteristics ◽  
Inverse Correlation ◽  
Proof Of Concept ◽  
Central Venous ◽  
Jugular Veins ◽  
Cross Sectional ◽  
Concept Study ◽  
The Impact

In this proof-of-concept study the impact of central venous pressure (CVP) on internal jugular veins cross-sectional area (CSA) and blood flow time-average velocity (TAV) was evaluated in eight subjects, with the aim of understanding the drivers of the jugular venous pulse. CVP was measured using a central venous catheter while CSA variation and TAV along a cardiac cycle were acquired using ultrasound. Analysis of CVP, CSA and TAV time-series signals revealed TAV and CSA to lag behind CVP by on average 0.129 s and 0.138 s, with an inverse correlation between CSA and TAV (r= –0.316). The respective autocorrelation signals were strongly correlated (mean r=0.729-0.764), with mean CSA periodicity being 1.062 Hz. Fourier analysis revealed the frequency spectrums of CVP, TAV and CSA signals to be dominated by frequencies at approximately 1 and 2 Hz, with those >1 Hz greatly attenuated in the CSA signal. Because the autocorrelograms and periodograms of the respective signals were aligned and dominated by the same underlying frequencies, this suggested that they are more easily interpreted in the frequency domain rather than the time domain.

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