No abstract available.
Stroke Volume*

BACKGROUND: By varying the collected blood volume and storage temperature of the blood culture bottles prior to entry in an automated blood culture system, growth of organisms will be affected. METHODS: Blood culture bottles with a 20 mL blood volume per set were stored at 37degrees C (1st period) and room temperature (RT, 2nd period) upon arrival at the laboratory after working hours compared to baseline period (10 mL, RT). The time to detection (TTD) for all strains and the number of days until the final report after bottle entry were compared among the three periods. RESULTS: The median TTD for all strains was 13.5 h, 10.6 h, and 11.3 h in the baseline (N=268), 1st (N=454), and 2nd period (N=370), respectively (P<0.001). The final identification report was available within two days of bottle entry for 12.3%, 30.6% and 15.1% of bottles in the three different periods, respectively (P<0.001). CONCLUSION: Collecting an adequate blood volume is critical to reduce TTD. The preincubation of blood culture bottles at 37degrees C during the night shift might enable earlier final reports than storage at RT for samples with the same collected blood volume.
Blood Volume*

No abstract available.
Blood Volume

OBJECTIVEThe same person's pulmonary venous blood volume, left atrial volume and stroke volume were measured by lung CT scans and cardiac CT angiography (CTA). Then their relationships were analyzed in order to investigate the mechanism of breathing control.

METHODSAs we described before, full pulmonary vascular (-0.6mm) volume was accurately calculated by three-dimensional imaging technology from lung CT scan; left atrial volume and stroke volume of left ventricle were calculated from the CTA data. Then the relationships among them were analyzed for estimation of the lung-artery time.

RESULTSThe total volume of lung and pulmonary vascular blood was 3486 ± 783 (2156-4418) ml, and the pulmonary vascular blood volume was 141 ± 20 (105-163) ml. The estimated pulmonary venous volume was 71 ± 10 (52-81) ml. Left atrial volume at the end diastolic was 97 ± 39 (53-165) ml, Stroke volume of left ventricle was 86 ± 16 (60-106) ml. Pulmonary venous volume and the left atrial volume were double of stroke volume(1.7-2.4).

CONCLUSIONThe estimated lung-artery time was three heart beat.

At the first step of studying about “the volume of cord blood” in Vietnamse, a total of 50 samples have been collected. We obtained some results: - The mean volume of cord blood was: 50.06 +/- 20,73ml. -The mean number of total mononuclear cells was 352.4 +/- 161.6 (x106). -Some cord blood colections had many total MNC as some larger cord blood harvests. So, it is our belief that total MNC numbers are more useful indicator of clinical utility than more sample volume.
Fetal Blood ; Blood Volume

No abstract available.
Doxorubicin* ; Incidence* ; Stroke Volume*

No abstract available.
Stroke Volume* ; Stroke*

Introduction: There is no single haemodynamic parameters either static central venous pressure (CVP) or dynamic stroke volume variation, inferior vena cava distensibility index (SVV,IVCd) that can be used precisely to assess fluid responsiveness. It must be performed concurrently with clinical assessment. Therefore, this study was conducted to determine the correlation between these 3 parameters. Methods: This was a cross sectional non-interventional study conducted in intensive care unit. Each patient who fulfilled the criteria will have their CVP, SVV and IVCd measured instantaneously. Analysis of correlation was done using bivariate (Pearson) correlation, while agreement between SVV and IVCd was assessed using Cohen’s Kappa analysis. Results: A total of 37 patients were enrolled in this study. 70.3% were males and 29.7% were females. Mean age was 59.7 ± 13.3. Mean APACHE score was 24.1 ± 6.1. IVCd had significant positive correlation with SVV (r = 0.391, p = 0.017). Agreement between IVCd and SVV was 0.329 (0.95 CI = 0.0174 – 0.6412; p = 0.033). There was non-significant negative correlation between IVCd with CVP and SVV with CVP with r = -0.155 (p=0.359) and r = -0.068 (p= 0.691) respectively. Conclusion: There is only fair correlation between IVCd and SVV in determining fluid responsiveness. However, CVP does not correlate to both SVV and IVCd. Neither one of them is a good method in assessing fluid responsiveness during standard care in our centre. Therefore, the usage of above methods needs to combine with clinical parameters to yield better result.
Stroke volume variation

Bolld volume in 10 adult rabbits were measured by means of RISA dilution. The values were: eye plasma volume 0.0093 ml/gm eye, eye bolld volume 0.016 ml/gm eye and total blood volume of whole eye was 0.043 +/- 0.013(S.D.) ml. Total body plasma volume obtained simultaneously was 4.0% body weight and total body blood volume 6.9% body weight.
Adult ; Blood Volume* ; Body Weight ; Humans ; Plasma Volume ; Rabbits

With low-flow oxygen administration, one of the methods of oxygen therapy, the concentration of oxygen depends on the flow rate and on the tidal volume of the patient. It is often casually referred to as 100% oxygen, though in fact it is usually 30-60%, and rarely exceeds 70%. A patient who receiving 6l/min of oxygen flow by nasal cannula is receiving an FiO2 of 44%, nasal cannula with more than 6l flow does little to increase inspired oxygen concentrations. Patients in control group received 0.11/min/kg of oxygen flow by modified T-piece in PAR,in low flow group received 0.11/min/kg of oxygen flow and in high group received 0.2Vmin/kg of oxygen flow. Blood pressure,heart rate, ABGA, SaO2, PAR score were measured in PAR with 5 minutes interval. PaO2 and SaO2 of low flow group were significantly (p<0.05) lower than control group with 5 of PAR score, PaO2 of low flow group was significantly (p<0.05) lower than control group with 10 of PAR score and PaO2 and SaO2 of high flow group were significantly (p<0.05) higher than low flow group with 10 of PAR score. These result suggest that patient who were taken Ravitch's operation receive a higher oxygen flow than others who were taken operation except Ravitch's operation for the same effect of oxygen therapy.
Catheters ; Humans ; Oxygen* ; Tidal Volume