G Ocakoglu

Bio: G Ocakoglu is an academic researcher from Uludağ University. The author has contributed to research in topics: Inferior vena cava & Central venous pressure. The author has an hindex of 1, co-authored 1 publications receiving 2 citations.

Is there a relationship between the diameter of the inferior vena cava and hemodynamic parameters in critically ill patients

Abstract: Introduction: The early detection of critically ill patients together with the rapid initiation of effective treatment in emergency departments(ED) increase the survival rates. Aim: This study investigated whether a correlation exists between haemodynamic parameters of critically ill patients and the diameter of the inferior vena cava (IVC). Materials and Methods: A cross-sectional study was performed included patients aged ≥18 years with an unstable haemodynamic and/or respiratory status who were referred to the ED for non-traumatic issues. IVC diameters were measured by ultrasound (US) and then central venous pressures (CVP) were measured. Anteroposterior (AP) and mediolateral (ML) diameters of the IVC, both in the inspirium (IAP, IML) and expirium (EAP, EML), were measured by US. Results: 102 patients were evaluated with a median age of 59. The relationship between the diameters of IVC and CVP was evaluated and significant correlation was found in IAP, EAP according to CVP values (p' 0.001). ROC analyses were performed and significant relationship was found between the EAP diameter with haemoglobin (Hmg), haemotocrit (Hct), and central venous oxygen saturation (ScvO2) and also significant correlation was detected between the IAP diameter and white blood cell (WBC). Discussion: We detected significant correlation between the CVP and the IVC diameter in our study compatible with recent studies besides, significant correlation was found between the diameter of the IVC and CVP values as well as between the EAP diameter and Hmg, Hct, ScvO2 levels. Conclusion: Measurement of IVC diameters, especially EAP may be useful at the monitoring of critically ill patients in ED.

Influence of the Respiratory Cycle on Caudal Vena Cava Diameter Measured by Sonography in Healthy Foals: A Pilot Study.

Abstract: Background Intravascular volume assessment in foals is challenging. In humans, intravascular volume status is estimated by the caudal vena cava (CVC) collapsibility index (CVC-CI) defined as (CVC diameter at maximum expiration [CVCmax] – CVC diameter at minimal inspiration [CVCmin])/CVCmax × 100%. Hypothesis/Objectives To determine whether the CVC could be sonographically measured in healthy foals, determine differences in CVCmax and CVCmin, and calculate inter- and intrarater variability between 2 examiners. We hypothesized that the CVC could be measured sonographically at the subxiphoid view and that there would be a difference between CVCmax and CVCmin values. Animals Sixty privately owned foals <1-month-old. Methods Prospective study. A longitudinal subxiphoid sonographic window in standing foals was used. The CVCmax and CVCmin were analyzed by a linear mixed effect model. Inter-rater agreement and intrarater variability were expressed by Bland-Altman and intraclass correlation coefficients, respectively. Results Measurements were attained from 58 of 60 foals with mean age of 15 ± 7.9 days and mean weight of 75.7 ± 17.7 kg. The CVCmax was significantly different from CVCmin (D = 0.515, SE = 0.031, P < 0.001). Inter-rater agreement of the CVC-CI differed by an average of −0.9% (95% limits of agreement, −12.5 to +10.7%). Intrarater variability of CVCmax was 0.540 and 0.545, of CVCmin was 0.550 and 0.594, and of CVC-CI was 0.894 and 0.853 for observers 1 and 2, respectively. Conclusions and Clinical Importance These results indicate it is possible to reliably measure the CVC sonographically in healthy foals, and the CVC-CI may prove useful in assessing the intravascular volume status in hypovolemic foals.