Speciality
Spotlight

 




 

Obstetric & Gynaecology

 

 




Preterm Delivery

   

  • (a)
    Cervical length at 23 weeks of gestation: Prediction of spontaneous preterm delivery. 

    VCG Heath, TR Southall, AP Souka et al. (1998) (King’s College Hosp Med School, London): 

    Ultrasound Obstet Gynecol 12: 312-317.

        


    According to the authors, cervical length of 15mm or less at 23 weeks of gestational was identified in only 1.7% of women. This group contains 86% of women spontaneously delivering at 28 weeks or less.

       

  • Cervicovaginal fetal fibronectin as a marker for preterm delivery: A Meta-analysis. 

    H Leitich, C Egarter, A Kaider et al (Univ. of Vienna) (1999) : 

    Am J Obstet Gynecol 180: 1169-1176.

       


    Half of the patients with preterm uterine contraction and intact fetal membrane are subsequently delivered at term. 

       


    Twenty-seven studies were included. Prospective studies of women at less than 37 weeks gestation with intact amniotic membrane were included.

       


    Cervicovaginal FFN appears to be one of the most effective predictors of preterm delivery in women with symptoms of preterm labour. It is particularly useful in patients with symtpoms of preterm labour who will give birth within 7 days after sampling.

        


    Editor’s comments: Regrettably authors failed to include positive predictive values, which would have made clear the 50% to 80% false positive rates. As desirable as a predictor of preterm labour is for potential investigation and for management, FFN does not appear to be very useful in that regard.

        

      



 

 

Speciality Spotlight

 

 

Preterm Delivery
   

  • (a) Cervical length at 23 weeks of gestation: Prediction of spontaneous preterm delivery. 
    VCG Heath, TR Southall, AP Souka et al. (1998) (King’s College Hosp Med School, London): 
    Ultrasound Obstet Gynecol 12: 312-317.
        
    According to the authors, cervical length of 15mm or less at 23 weeks of gestational was identified in only 1.7% of women. This group contains 86% of women spontaneously delivering at 28 weeks or less.
       

  • Cervicovaginal fetal fibronectin as a marker for preterm delivery: A Meta-analysis. 
    H Leitich, C Egarter, A Kaider et al (Univ. of Vienna) (1999) : 
    Am J Obstet Gynecol 180: 1169-1176.
       
    Half of the patients with preterm uterine contraction and intact fetal membrane are subsequently delivered at term. 
       
    Twenty-seven studies were included. Prospective studies of women at less than 37 weeks gestation with intact amniotic membrane were included.
       
    Cervicovaginal FFN appears to be one of the most effective predictors of preterm delivery in women with symptoms of preterm labour. It is particularly useful in patients with symtpoms of preterm labour who will give birth within 7 days after sampling.
        
    Editor’s comments: Regrettably authors failed to include positive predictive values, which would have made clear the 50% to 80% false positive rates. As desirable as a predictor of preterm labour is for potential investigation and for management, FFN does not appear to be very useful in that regard.
        

      

 

By |2022-07-20T16:43:09+00:00July 20, 2022|Uncategorized|Comments Off on Preterm Delivery

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