Relationship between the number of lung ultrasound B-lines and changes in body weight changes,ECW/TBW ratio,and its value in evaluating volume load in peritoneal dialysis patients
WU Chaoran
WU Nan
TIAN Lu
CHEN Yuhua
JIN Liqun
WANG Xueqin
Abstract：Objective To analyze the relationship between the number of lung ultrasound B-lines and body weight changes,extracellular water(ECW)/total body water(TBW)ratio in patients undergoing peritoneal dialysis,as well as its value in evaluating the volume load.Methods A total of 100 patients with end-stage renal disease(ESRD)undergoing peritoneal dialysis admitted from September 2021 to August 2023 were selected as the research subjects.The changes in the number of lung ultrasound B-lines,ECW/TBW ratio,and body weight before and after dialysis were compared,and the correlation between the number of lung ultrasound B-lines and body weight change,ultrafiltration volume,ECW/TBW,as well as the consistency of lung ultrasound and body composition analysis in volume load assessment,was analyzed.Results The number of B-lines,ECW/TBW ratioand body weight changes in peritoneal dialysis patients after dialysis were less or lower than those before dialysis(P<0.05).The number of B-lines before dialysis was positively correlated with the increase of body weight(P<0.05),and the number of B-lines after dialysis was positively correlated with the remaining body weight(P<0.05).The percentage change of B-line number before and after dialysis was positively correlated with body weight loss and ultrafiltration volume(P<0.05).The number of B lines before and after dialysis was positively correlated with ECW/TBW(P<0.05),and the percentage change in the number of B-lines before and after dialysis was positively correlated with the percentage change in ECW/TBW ratio(P<0.05).The consistency of lung ultrasound and body composition analysis in evaluating the volume load of peritoneal dialysis patients was 97.00%,and the Kappa value was 0.955(95%CI:0.831,0.999).Conclusion The number of B-lines before and after peritoneal dialysis in patients with ESRD is closely related to ECW/TBW ratio and body weight changes.Furthermore,lung ultrasound and body composition analysis have good consistency in evaluating patients'volume load,which can provide guidance for the treatment of peritoneal dialysis patients.
Keywords：end-stage renal diseaseperitoneal dialysislung ultrasoundbody composition analysisvolume loadbody weightextracellular watertotal body water
Publication Date：2026-02-13
Online Publishing Date：2026-03-05(First online date of this platform, not the publication date of the document)
Pages：7( 53-59 )