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Iranian Journal of Neonatology، جلد ۱۶، شماره ۱، صفحات ۳۳-۳۹
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عنوان انگلیسی Fetal Hydronephrosis in the Second and Third Trimester of Pregnancy and Six Months Follow-up after Birth
چکیده انگلیسی مقاله Background: Prenatal hydronephrosis (PNH) may be associated with congenital abnormalities in the urinary tract. This study aimed to determine and follow up on the fetus diagnosed with PNH until the first six months after birth.Methods: This prospective longitudinal study was conducted from May 2021 to July 2022 in fetuses who were diagnosed with PNH based on the size of the anterior-posterior diameter of the renal pelvis (APRPD) by a perinatologist with an S W 80 ultrasound machine. If it is ≥ 4 mm in the 2nd and ≥ 7 mm in the 3rd trimesters, it is considered PNH. These infants were followed up until the first six months after birth. Data analysis was performed using SPSS 20, Chi-square, Fisher's exact, and T-tests.Results: Of the 56 eligible fetuses, 50 fetuses were followed up. The mean gestational age at the time of diagnosis of PNH was 20.48 ± 5.37 weeks. Twenty cases of PNH (45.45%) spontaneously improved until birth. Thirty cases had hydronephrosis in the first week after birth, 16 of which (53.33%) were bilateral. The cause of PNH in 90% is idiopathic. Other causes include polycystic kidney, vesicoureteral reflux, and posterior urethral valve. One case died in the first week after birth. Forty-three cases had spontaneous recovery of PNH by six months, and 6 cases (12%) had adverse outcomes. The severity of PNH in the 3rd trimester had a significant relationship with adverse outcomes (P=0.001). The APRPD in the 3rd trimester has more sensitivity and specificity than in the 2nd trimester for predicting adverse outcomes after birth.Conclusion: In most cases, the cause of PNH is idiopathic, and the resolution of PNH occurs up to 6 months after birth. Moderate and severe PNH was associated with a poorer outcome and requires more follow-up and intervention. 
کلیدواژه‌های انگلیسی مقاله complication, Fetal Hydronephrosis, fetal pyelectasis, Perinatal outcome
نویسندگان مقاله | Zahra Akbarian-rad
Department of Pediatrics, Clinical Research Development Unit of Rouhani Hospital, Amirkola Children's Non-Communicable Diseases Research Center, Babol University of Medical Sciences, Babol, Iran


| Zahra Shafizadeh
Student Research Committee, Babol University of Medical Sciences, Babol, Iran


| Fatemeh Nasiri-Amiri
Department of Midwifery and Reproductive Health, Social Determinants of Health Research Center, Health Research Institute, Babol, Iran


| Sahar Sadr Moharerpour
Department of Pediatrics, Amirkla Children's Non-Communicable Disease Research Center, Babol University of Medical Sciences, Babol, Iran


| Hossein Ali Nikbakht
Department of Biostatistics & Epidemiology, Social Determinants of Health Research Center, Health Research Institute, Babol, Iran


| Zeinab Pahlavan
Department of Gynecology and Obstetrics, Clinical Research Development Unit of Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran


| Fatemeh Shafizadeh
Research Development Unit of Ayatollah Rouhani Hospit Clinical Research Development Unit of Rouhani Hospital al, School of Medicine, Babol University of Medical Sciences, Babol, Iran


| Mohsen Haghshenas mojaveri
Department of Pediatrics, Clinical Research Development Unit of Rouhani Hospital, Amirkola Children's Non-Communicable Diseases Research Center, Babol University of Medical Sciences, Babol, Iran


| Mohammadreza Tabatabaie
Department of Radiology, Clinical Research Development Unit of Rouhani Hospital, School of Medicine, Babol University of Medical Sciences, Babol, Iran
نشانی اینترنتی https://ijn.mums.ac.ir/article_24670.html
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