Effects of Maternal Smoking on Fetal Liver Circulation

Bezmialem Vakif University

Status: Unknown

Conditions: Smoking, Cigarette; Maternal Exposure; Liver; Fetal; Circulation; Ultrasound

Treatments: Other: smoking

Study type: Observational

Funder types: Other

Identifiers

NCT04721782

06/109

Details and patient eligibility

About

According to the hypothesis of this study presented, the effects of smoking on the fetus can be determined by the liver circulation and hepatic metabolism. The basic assumption of this project is; Compensatory and pathological findings can be seen in the fetal liver circulation in babies of mothers who smoke and the findings can be valuable in predicting the direction of fetal development (growth retardation or normal development). In this study, the flow and shunt amounts in the fetal hepatic vessels in normal and smoking pregnant women will be calculated with the help of Doppler US.

Full description

Smoking is an agent that negatively affects of uteroplacental circulation and fetal development due to the chemical substances it contains, especially carbon monoxide and nicotine. According to the hypothesis of this study presented, the effects of smoking on the fetus can be determined by the liver circulation and hepatic metabolism. The basic assumption of this project is; Compensatory and pathological findings can be seen in the fetal liver circulation in babies of mothers who smoke and the findings can be valuable in predicting the direction of fetal development (growth retardation or normal development). In this study, the flow and shunt amounts in the fetal hepatic vessels in normal and smoking pregnant women will be calculated with the help of Doppler US.Therefore, we try to delineate pathological circulatory pattern in these fetuses and shed light to the mechanism of smoking-induced abnormal fetal development. In addition, the effects of other maternal demographic factors, cigarette amount, cotinine and expiratory carbon monoxide levels (or any correlation between them) on hepatic circulation and fetal development will be examined.

Enrollment: 160 estimated patients

Sex: Female

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• singleton pregnancy
• smoking more than one cigarette in a day

Exclusion criteria

• fetal anomaly
• pregnant women with systemic disease
• younger than 18 years

Trial design

160 participants in 2 patient groups

otherwise healthy, smoking, singleton pregnant women between 24- 36 weeks

Description:

Fetal liver circulation will be evaluated with doppler ultrasound, The degree of maternal smoking will be assessed by measuring urine cotinine and exhaled carbon monokside levels

Treatment:

Other: smoking

otherwise healthy, non-smoking, singleton pregnant women between 24- 36 weeks

Description:

Fetal liver circulation will be evaluated with doppler ultrasound, The degree of maternal smoking will be assessed by measuring urine cotinine and exhaled carbon monokside levels