Objective To investigate the incidence of subclinical hypothyroidism (SCH) during the third trimester of pregnancy and its effects on pregnancy outcomes and neonatal hypothyroidism.Methods A total of 10 695 women in the third trimester of pregnancy (28-42 weeks of gestation) who labored from January 1,to December 31,2012 in Changzhou Maternal and Child Health Care Hospital Affiliated to Nanjing Medical University were enrolled.The levels of thyroid stimulating hormone (TSH),free thyroxine (FT4) and thyroid peroxidase antibody (TPOAb) of the mothers were quantified by electrochemical immunoassay.The time-resolved fluorescence immunoassay was used to detect neonatal thyroid hormone levels.Using t test or x2test,the incidence of adverse pregnancy outcomes was compared between SCH group and euthyroid group and between SCH women with positive (n=40) or negative TPOAb (n=176).Results The incidence of SCH was 2.02％ (216/10 695) and the positive rate of TPOAb in SCH women was 18.5％ (40/216).No neonatal thyroid dysfunction was found.According to the age matched,222 cases were randomly selected as controls from 7 757 euthyroid women.Compared with the controls,SCH women had a higher incidence of premature rupture of membranes [28.7％ (62/216) vs 14.9％ (33/222),x2=12.34],anemia [11.6％ (25/216) vs 4.1％ (9/222),x2=8.65],pregnancy-induced hypertension [9.7％ (21/216) vs 4.5％ (10/222),x2=4.53],premature labor [8.8％ (19/216) vs 3.6％ (8/222),x2=5.10] and intrahepatic cholestasis of pregnancy [8.3％(18/216) vs 2.3％ (5/222),x2=8.14] (all P＜0.05).The overall incidence of adverse pregnancy outcomes was also higher in SCH group than in the controls [69.4％ (150/216) vs 49.5％ (110/222),x2=17.96,P＜0.01].The incidence of fetal growth restriction and still birth in SCH mothers with positive TPOAb was higher than in those with negative TPOAb [7.5％ (3/40) vs 0.0％ (0/176),x2=13.32,P＜0.01; 2.5％ (1/40) vs 0.0％ (0/176),x2=4.40,P＜0.05],but there was no significant difference in the overall incidence of adverse pregnancy outcomes compared with TPOAb-negative mothers [65.0％ (26/40) vs 70.5％ (124/176),x2=0.46,P=0.50].Conclusions SCH diagnosed in the third trimester may lead to adverse pregnancy outcomes.Early screening for thyroid dysfunction is necessary.

Objective To explore the diagnostic and score value of ultrasound on hemophiliac arthropathy referring to MRI on the diagnosis and score of hemophiliac arthropathy Methods The ultrasound and MRI examinations were performed on 42 joints of 42 hemophilia patients 14 knees 14 ankles and 14 elbows The consistency of ultrasound and magnetic resonance imaging in the detection and score of joint diseases was compared Finally inter-and intra-observer agreement of ultrasound scoring system were tested Results The consistency of ultrasound and magnetic resonance imaging was excellent κ=0 763-0 896 P < 0 001 in the detection of early soft tissue lesions effusion or hemarthrosis synovial hypertrophy hemosiderin excellent κ=0 793 P <0 001 in the detection of cartilage loss poor κ=0 133 P = 0 132 in the detection of erosions and poor κ= 0 100 P = 0 137 in the detection of subchondral cysts The consistency of ultrasound and magnetic resonance imaging was good to excellentκ=0 684-0 833 P < 0 001 in the score of early soft tissue lesions effusion or hemarthrosis synovial hypertrophy and hemosiderin and poor to good κ=0 145 -0 635 P <0 001 in the score of advanced osteochondral lesions cartilage loss and bone erosions The inter-observer agreement was good to excellent κ=0 676-0 870 P <0 001 for early soft tissue lesions and moderate to excellent κ=0 421- 0 75 1 P < 0 001 for advanced osteochondral lesions The intra-observer agreement was good to excellent κ=0 705-0 885 P <0 001 for early soft tissue lesions and moderate to good κ=0 532 -0 732 P <0 001 for advanced osteochondral lesions Conclusions Ultrasound plays an important role in detecting early soft tissue changes effusion or hemarthrosis synovial hypertrophy hemosiderin and cartilage loss which helps follow-up and guide clinical treatment.