We have previously reported that the diameter of the inferior vena cava(IVC) reflects the amount of body fluid in hemodialyzed (HD) patients. The present study was undertaken to depict the criteria of IVC diameters fo...We have previously reported that the diameter of the inferior vena cava(IVC) reflects the amount of body fluid in hemodialyzed (HD) patients. The present study was undertaken to depict the criteria of IVC diameters for determining dry weight (DW) in anuric HD patients. In healthy subjects, the maximal diameters during quiet expiration (IVCe) and the minimal diameters during quiet inspiration (IVCi) were (16.7±3.2) and (5.7±5.4)mm,respectively (mean±SD).The collapsibility index (CI,1-IVCi/IVCe), which inversely correlates with the central venous pressure,was 0.68±0.29. In anuric HD patients,the IVCe/CI values before and after HD were 14.9±3.2/0.68±0.24 and 8.2±2.3/0.94±0.09, respectively. IVCe decreased proportionally to the amount of ultrafiltration. In HD patients with hypervolemic pulmonary edema, the IVCe and CI values were 22.4±2.9 and 0.22±0.11, respectively. We proposed that IVCe/CI after HD is (8±3)mm/0.9 ± 0.1 as the markers of DW in anuric HD patients and that an IVCe value≥22mm together with a CI≤0.22 implies the warning level of body fluid retention.展开更多
The nonimprovement group was characterized by the following: ① a high incidence of diabetes (4 of 6 patients) ,② a high incidence of preexisting cardiac dysfunction documented prior to or at the time of induction
The IVC diameters in HD patients
Since BW and stature as well as gender and age were not considered to be determinant factors of the IVC diameters, these factors were not accounted for in evaluating the IVC d... The IVC diameters in HD patients
Since BW and stature as well as gender and age were not considered to be determinant factors of the IVC diameters, these factors were not accounted for in evaluating the IVC diameters in HD patients. The IVC diameters of stable anuric HD patients are shown in Table 2. In agreement with our previous observation [7-9] ,the reduction of BW from (51.7±12.6) to (49.3±12.6)kg by ultrafiltration during HD resulted in a significant (P<0.0001)reduction of the IVCe and IVCi from (14.9 ± 3.2) to (6.8±1.9)mm and (5.2±4.2) to (0.1±0.3) mm,respectively. Thus,CI values before and at the end of HD were calculated as (0.68±0.24) and (0.98±0. 05), respectively (P<0.0001).
……展开更多
文摘We have previously reported that the diameter of the inferior vena cava(IVC) reflects the amount of body fluid in hemodialyzed (HD) patients. The present study was undertaken to depict the criteria of IVC diameters for determining dry weight (DW) in anuric HD patients. In healthy subjects, the maximal diameters during quiet expiration (IVCe) and the minimal diameters during quiet inspiration (IVCi) were (16.7±3.2) and (5.7±5.4)mm,respectively (mean±SD).The collapsibility index (CI,1-IVCi/IVCe), which inversely correlates with the central venous pressure,was 0.68±0.29. In anuric HD patients,the IVCe/CI values before and after HD were 14.9±3.2/0.68±0.24 and 8.2±2.3/0.94±0.09, respectively. IVCe decreased proportionally to the amount of ultrafiltration. In HD patients with hypervolemic pulmonary edema, the IVCe and CI values were 22.4±2.9 and 0.22±0.11, respectively. We proposed that IVCe/CI after HD is (8±3)mm/0.9 ± 0.1 as the markers of DW in anuric HD patients and that an IVCe value≥22mm together with a CI≤0.22 implies the warning level of body fluid retention.
文摘The nonimprovement group was characterized by the following: ① a high incidence of diabetes (4 of 6 patients) ,② a high incidence of preexisting cardiac dysfunction documented prior to or at the time of induction
文摘 The IVC diameters in HD patients
Since BW and stature as well as gender and age were not considered to be determinant factors of the IVC diameters, these factors were not accounted for in evaluating the IVC diameters in HD patients. The IVC diameters of stable anuric HD patients are shown in Table 2. In agreement with our previous observation [7-9] ,the reduction of BW from (51.7±12.6) to (49.3±12.6)kg by ultrafiltration during HD resulted in a significant (P<0.0001)reduction of the IVCe and IVCi from (14.9 ± 3.2) to (6.8±1.9)mm and (5.2±4.2) to (0.1±0.3) mm,respectively. Thus,CI values before and at the end of HD were calculated as (0.68±0.24) and (0.98±0. 05), respectively (P<0.0001).
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