L-Arginine Treatment for Severe Vascular Fetal Intrauterine Growth Restriction: a Randomized Double Bind Controlled Trial (L Arginine in IUGR)
Intra Uterine Growth Retardation
About this trial
This is an interventional prevention trial for Intra Uterine Growth Retardation focused on measuring Severe Intra uterine growth retardation below the third centile with abnormal uterine doppler, Severe growth retardation with pathologic uterine Doppler, L-Arginine, Nitric Oxide Donor
Eligibility Criteria
Inclusion Criteria:
- Multicenter randomized trial.
- Patients with a singleton pregnancy with IUGR defined by fetal abdominal circumference less than or equal to the third percentile for gestational age, and abnormal uterine Doppler. Uterine Doppler was considered pathologic if Pourcelot's resistance index (S-D/S) was equal to or higher than 0.7, and/or if an obvious notch was present. If the placenta was not median, the side of the pathologic Doppler had to be on the same side as the placenta
Exclusion Criteria:
- Acute fetal distress
- Non vascular and non severe IUGR (normal uterine doppler scans and/or abdominal circumference > 3rd percentile)
- Maternal immune disorder
- IUGR from an infectious etiology
- IUGR associated with fetal malformation, multifetal pregnancy, and preeclampsia upon inclusion
Sites / Locations
- Chu-Nantes
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
A
B
Patients received 14 g/day of L-arginine (90 mL syrup, Veyron France Laboratories). Doppler ultrasound examination of the uterine, umbilical and cerebral circulation, and of ductus venous was performed prior to inclusion, after 7 days of treatment, and the day before delivery. Ultrasound examination was performed upon randomization, and weekly until birth. Venous blood and urine samples were collected before initiation and after 7 days of treatment, and both maternal and umbilical venous samples were obtained at delivery for nitrate and nitrite (NO2-/ NO3-) determination.
After double blind randomization, patients received a placebo. Doppler ultrasound examination of the uterine, umbilical and cerebral circulation, and of ductus venous was performed prior to inclusion, after 7 days of treatment, and the day before delivery. Ultrasound examination was performed upon randomization, and weekly until birth. Venous blood and urine samples were collected before initiation and after 7 days of treatment, and both maternal and umbilical venous samples were obtained at delivery for nitrate and nitrite (NO2-/ NO3-) determination.