Feasibility and effectiveness of the combined mode of PAS score,Alvarado score and high-frequency color Doppler for early and rapid diagnosis of acute appendicitis in children

AERZIGULI Tuoheti; DU Dianguo; KAISHAER Wusiman; YUSUFU Akemu

Abstract：Objective To study the feasibility and effectiveness of PAS score,Alvarado score combined with high frequency color Doppler ultrasound in the early and rapid diagnosis of acute appendicitis(AP)in children.Methods 170 children with suspected AP who were treated by surgery in our hospital were analyzed as the research objects.The subjects were divided into AP group(121 cases)and non-AP group(49 cases),and AP group was divided into acute simple appendicitis group(41 cases)and acute suppurative gangrene appendicitis group(80 cases).The receiver operating curve was used to explore the diagnostic value of Alvarado score,PAS score and combined detection in children with AP.The diagnostic value of high-frequency color Doppler ultrasound alone or in combination with Alvarado score and PAS score in the diagnosis of AP and acute suppurative gan-grenous appendicitis in children were investigated.Results The incidences of nausea and vomiting,metastatic right lower quadrant pain,right lower quadrant tenderness and rebound tenderness,and abdominal muscle tension in the AP group were sig-nificantly higher than those in the non AP group(P<0.05).Compared with the non-AP group,the AP group had significantly higher PAS scores and Alvarado scores(t=12.929,14.256,P<0.001),and the positive rate of high-frequency color Doppler ul-trasound was significantly higher(χ2=27.154,P<0.001).Compared with single detection,combined detection of PAS score and Alvarado score had higher diagnostic value for acute appendicitis(Z=2.810,7.229,P<0.05).The sensitivity and negative pre-dictive value of high-frequency color Doppler ultrasound combined with PAS score and Alvarado score in the diagnosis of AP and acute suppurative gangrenous appendicitis were significantly higher than those of high-frequency color Doppler ultrasound and the combined detection of PAS score,or Alvarado score alone(P<0.05).Conclusion The combined mode of PAS score,Al-varado score and high-frequency color Doppler ultrasound has good early and rapid diagnostic value for children with AP,which has good feasibility and effectiveness.