Abstract:
Objective
To observe the impact of cardiopulmonary ultrasound - guided fluid resuscitation and goal-directed therapy on the prognosis of patients with septic shock.
Methods
A total of 96 patients diagnosed with septic shock hospitalized in Affiliated Hospital of Zunyi Medical University from March 2023 to December 2024 were selected and randomly divided into cardiopulmonary ultrasoundguided fluid therapy group (ultrasound group) and goal-directed therapy group (GDT group) according to random number table, with 48 patients in each group. Among them, there were 59 males and 37 females and the age ranged from 21 to 80 years, with a median age of 56.5 (44.0, 68.0) years. The baseline data of patients at admission were collected. The patients in the ultrasound group underwent critical care ultrasound examination, including cardiac systolic and diastolic function, inferior vena cava diameter and dilatation index, and lung condition at the time of admission (0 h), 24 h, 48 h and 72 h after treatment,respectively, to guide fluid therapy. GDT group guided fluid management according to central venous pressure (CVP), mean arterial pressure (MAP), central venous oxygen saturation (ScvO2), urine volume and lactic acid (Lac). Clinical data, fluid volume, NT-proBNP changes of the two groups were compared and prognostic indicators were observed, including 24-hour resuscitation targeting rate, lactate clearance rate(24 h,48 h,72 h),mechanical ventilation time,length of intensive care unit(ICU)and hospital stay,mortality within ICU and 28 days.
Results
With the prolongation of treatment, the heart rate and NT-proBNP of the two groups gradually decreased, and the MAP gradually increased (P<0.05). Compared with the GDT group,the fluid resuscitation guided by the cardiopulmonary ultrasound could increase the 24 h resuscitation targeting rate,increase lactate clearance rate at 24 h,48 h and 72 h,reduce the volume of fluid resuscitation at 24 hours and 48 hours, increase output, fluid balance and urine volume of 48h and 72 h, and accelerate the decline of NT-proBNP. There were no statistically significant differences in the time of mechanical ventilation, length of stay in ICU and hospital, mortality in ICU and 28 days between GDT group and ultrasound group (P>0.05).
Conclusion
Cardiopulmonary ultrasound can be used to guide the fluid treatment of patients with septic shock, improve the 24-hour resuscitation targeting rate and lactate clearance rate, reduce the infusion volume during resuscitation, significantly reduce NT-proBNP and therefore alleviate myocardial injury.
Key words:
Septic shock,
Critical care ultrasound,
Fluid resuscitation,
NT-proBNP
Yili Zheng, Kun Yu, Xiaoxia He, Xinxin Liu, Hong Mei, Banghai Feng, Song Qin, Liting Cheng. Impact of cardiopulmonary ultrasound-guided fluid therapy on outcomes in patients with septic shock[J]. Chinese Journal of Hygiene Rescue(Electronic Edition), 2024, 10(06): 325-331.