background: preterm labor (ptl) is the main challenge in prenatal health care, leads to high rate of mortality and  increases cost of health services. to evaluate the preterm delivery (ptd)?related risk factors, we decided to measure nitrite oxide metabolites and cervical length (cl) as the diagnostic and predictive tools for ptd in women and response to tocolytic therapy.materials and methods:...

background & aim: preterm delivery is one of the most important problems in pregnancy, as it is the primary cause of 75% of prenatal mortality and morbidities. this study aimed to determine the prevalence and risk factors for preterm delivery in tehran, iran. methods:in this cross-sectional study performed in eight random hospitals from five different regions of tehran (north, south, west, east...

conclusions there is no statistically significant relationship between preterm delivery and type of sludge. results the prevalence of preterm delivery was 14/3%. the frequencies of term delivery in mothers with dense, light and no sludge were 78/6%, 82/1% and 96/4 % respectively, and for preterm delivery they were 21/4%, 17/9% and 3/6% respectively. but there was no statistically significant re...

objective(s): we aimed to investigate the influence of transient receptor potential channel 3 (trpc3) on lipopolysaccharide-induced (lps) preterm delivery mice. materials and methods: mice were randomly assigned to the four groups: an unpregnant group, a mid-pregnancy group (e15), a term delivery group, and an lps-induced preterm delivery group (intraperitoneal injection lps at 15 days). uterin...

background prematurity is an issue related to increasing the neonatal morbidity and mortality and smoking pregnant women cause the risk of low birth weight and prematurity increase, compared to non-smoking ones. results of all 205 women, 43 (20.97%) women exposed to shs during pregnancy and 162 (79.02%) women did not. in shs exposure group, 11 infant (25.6%) and in non- shs exposure group, 17 i...

objective: to investigate the clinical advantage of several prognostic factors for predicting preterm delivery. materials and methods: eighty and six patients with a singleton pregnancy admitted to vali-asr hospital underwent genetic amniocentesis between the 15th and 23th weeks were included in this study. maternal serum c-reactive protein (crp), transvaginal sonographic measurement of cervica...

objective : the study evaluated the efficacy and safety of vaginal rogesterone on prevention of recurrent preterm labor. materials and methods: total number of 70 patients with preterm labor treated with intravenous magnesium sulfate in perinatology department of valiasr hospital entered to a randomized clinical trial. treatment group after inhibition of preterm labor with magnesium sulfate rec...

background : the measuring serum ferritin level as a sensitive inflammatory biomarker might effectively predict preterm delivery, but the power and the best cut-off point of this biomarker for predicting preterm labor in iranian population has not been substantially identified. our purpose was to determine what concentrations of serum ferritin could identify patients at risk for preterm deliver...

Background & aim: Preterm delivery is one of the most important problems in pregnancy, as it is the primary cause of 75% of prenatal mortality and morbidities. This study aimed to determine the prevalence and risk factors for preterm delivery in Tehran, Iran. Methods:In this cross-sectional study performed in eight random hospitals from five different regions of Tehran (North, South, West, East...