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Effects of different levels of stroke volume variation directed fluid therapy on short term of prognosis in elderly surgery patients
Author(s): 
Pages: 63-67
Year: Issue:  1
Journal: Chinese Journal of Postgraduates of Medicine

Keyword:  AgedStroke volumePrognosisFluid therapy;
Abstract: Objective To observe the effects of different levels of stroke volume variation(SVV) directed fluid therapy on prognosis in elderly surgery patients. Methods One hundred and fifty-six patients (ASA gradeⅠorⅡ) having underwent abdominal surgery were selected, and the patients were divided into 3 groups according to the level of SVV with 52 cases each:low SVV group (SVV 3%-6%), middle SVV group (SVV 7% - 10%) and high SVV group (SVV 11% - 14%). Each group accepted different fluid therapy strategy. The intraoperative index, postoperative recovery index and complications were compared. Results The volume of crystalloid and volume of colloform in low SVV group and middle SVV group were significantly higher than those in high SVV group: (2 365 ± 517) and (2 080 ± 378) ml vs. (1 820 ± 579) ml, (1 105 ± 220) and (898 ± 239) ml vs. (559 ± 166) ml, and those in low SVV group were significantly higher than those in middle SVV group, and there were statistical differences (P<0.05). The urine volume in low SVV group was significantly higher than that in high SVV group:(717.4 ± 289.0) ml vs. (511.8 ± 326.3) ml, and there was statistical difference (P<0.05). The first exhaust time in high SVV group was significantly shorter than that in low SVV group:(81.2 ± 27.5) h vs. (98.9 ± 32.5) h, and there was statistical difference (P<0.05). The first level and above nursing time, postoperative hospital stay and total length of hospital stay in middle SVV group were significantly shorter than those in high SVV group and low SVV group: (4.4 ± 2.8) d vs. (5.3 ± 3.2) and (6.4 ± 3.7) d, (13.8 ± 5.2) d vs. (17.7 ± 8.4) and (19.5 ± 8.9 ) d, (22.7 ± 10.4) d vs. (26.8 ± 13.1) and (30.6 ± 10.3) d, and there were statistical differences (P<0.05). The incidence of stomal leak in high SVV group was significantly higher than that in low SVV group: 17.3% (9/52) vs. 3.8% (2/52), the incidences of postoperative infection in high SVV group and middle SVV group were significantly lower than that in low SVV group: 5.8% (3/52) and 5.8% (3/52) vs. 26.9% (14/52), and there was statistical difference (P<0.05). Conclusions The SVV 3% - 6% in elderly surgery patients may increase the risk of postoperative infection and prolong the time of hospitalization. But the SVV 7% - 10% may have a better postoperative recovery, and this level could be a better goal of perioperative fluid therapy in elderly surgery patients.
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