| Author/Editor | Malovrh, Marko; Premru, Vlado | |
| Title | The influence of blood volume expansion on prevention of arteriovenous fistulas function after surgical construction in patients with critical arteries | |
| Type | članek | |
| Source | In: Buturović-Ponikvar J, Bren AF, editors. Zbornik 2. slovenski nefrološki kongres z mednarodno udeležbo ob 30. letnici dialize in transplantacije ledvic v Sloveniji; 2000 sep 27-30; Brdo pri Kranju. Ljubljana: Klinični center, Klinični oddelek za nefrologijo, | |
| Publication year | 2000 | |
| Volume | str. 185-8 | |
| Language | eng | |
| Abstract | Background. Blood flow through the feeding artery could be critical for AVF function in first hours after surgical creation. The main reason for this are the unsuitable arteries found by duplex sonography before operation. During surgery the situation could be worse because of arterial spasm. The aim of this study was to find out if blood volume expansion could prevent early AVF nonfunction. Methods. Before surgery arteries were examined by duplex sonography. Group of patients with critical values (IDA < 0.16 cm and/or RI >0.7) was divided in two groups by random sampling. One group received plasma expander during surgery and other not. Results. Total 60 AVF was constructed. At 36 patients, 29 males and 7 females, mean age 58.9 +- 10.3 years, mean internal diameter of arteries (IDA) was 3.2 <= 0.8 mm, resistance index at reactive hyperemia (RI) was 0.61 <= 0.12. Arterial blood flow before and reactive hyperemia was 42.3 <= 13.5 ml/min and 91.4 <= 22.1 ml/min, respective ly. On the distal part of the forearm 21 AVF, in the middle part 8 and at the elbow region 7 AVF were constructed. Success rate was 91.7% (33/36). At 24 patients 16 females and 8 males, mean age 60.1 +- 11.2 years, mean IDA was 2.0 +- 0.15 mm, RI 0.87 +- 0.09. Arterial blood flow before and reactive hyperemia was 22.6 +- 8.4 ml/min and 48.3 +- 11.9 ml/min, respectively. On the distal part 5 AVF, 9 in the middle part AVF and 10 AVF in the cubital region were done. During surgery 12 patients received in average 690 ml of plasma expander. Success rate in this group was 83% (10/12). Other 12 patients didn't receive plasma expander. Success rate in this group was 33% (4/12) (p<.001). At 8 pts of those group plasma expander was given immediately after surgery in average 810 ml. Success after intervention was 62% (5/8). (Abstract truncated at 2000 characters.) | |
| Descriptors | ARTERIOVENOUS SHUNT, SURGICAL ARTERIES HEMODIALYSIS BLOOD FLOW VELOCITY PLASMA SUBSTITUTES |