Petya Chaveeva

Prof. Petya Chaveeva

SAGBAL" DR Shterev" Fetal Medicine Unit, Medical University Pleven, Pleven, Bulgaria
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Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 January 2013 in Ultrasound in Obstetrics & Gynecology
Verified
Journal Article
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MAM. Agathokleous
M. Agathokleous
PCPetya Chaveeva
Petya Chaveeva
LPL. C. Y. Poon
L. C. Y. Poon
PKP. Kosinski
P. Kosinski
KNKypros Herodotos Nicolaides
Kypros Herodotos Nicolaides
16 April 2014 in Fetal Diagnosis and Therapy
Verified
Journal Article
Closed access
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PCPetya Chaveeva
Petya Chaveeva
LPLiona C. Poon
Liona C. Poon
ASAlexandros Sotiriadis
Alexandros Sotiriadis
PKPrzemyslaw Kosinski
Przemyslaw Kosinski
KNKypros Herodotos Nicolaides
Kypros Herodotos Nicolaides
Introduction: The objective of this study was to define the optimal method and timing of intervention in twin reversed arterial perfusion (TRAP) sequence. Material and Methods: During a period of 20 years (1993-2013), we performed endoscopic laser coagulation of umbilical cord vessels or intrafetal laser in 67 pregnancies with TRAP sequence. These data were combined with those reported in the literature to determine the survival rate of the pump twin for different methods and timing of interventions. Results: A variety of techniques were used to interrupt the blood supply to the acardiac twin. Most procedures were performed at or after 16 weeks, and with most methods the survival rate of the pump twin was about 80%. Good results were also obtained for triplet pregnancies. In 18 of 30 cases (60%) diagnosed at 11-14 weeks, there was spontaneous cessation of flow in the acardiac twin before planned intervention at 16-18 weeks, and in 11 of these (61.1%) the pump twin died or suffered brain damage. In 103 pregnancies treated by intrafetal laser at 12-27 weeks, there was no correlation between gestational age at treatment and survival rate, but there was an inverse association between gestational age at treatment and gestational age at birth. Discussion: In TRAP sequence, survival may be improved by elective intervention at 12-14 weeks.
15 April 2015 in Fetal Diagnosis and Therapy
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Journal Article
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GPGergana Peeva
Gergana Peeva
SBSarah Bower
Sarah Bower
LOLaszlo Orosz
Laszlo Orosz
PCPetya Chaveeva
Petya Chaveeva
RARanjit Akolekar
Ranjit Akolekar
KNKypros Herodotos Nicolaides
Kypros Herodotos Nicolaides
Objective: To determine predictors of survival in monochorionic diamniotic twins with selective fetal growth restriction type II (sFGR-II), with or without twin-to-twin transfusion syndrome (TTTS), treated by endoscopic placental laser coagulation. Methods: Laser surgery was performed at 20 (15-27) weeks' gestation in 405 cases of sFGR-II with and 142 without coexisting TTTS. Multivariable logistic regression analysis was performed to determine significant predictors of survival to discharge from hospital. Results: There was survival of the small twin in 216 (39.5%) and of the large twin in 379 (69.3%) cases. Significant predictors of survival of both the small and larger twin were ductus venosus Doppler findings in the small twin, gestational age at laser and cervical length, but not the presence of TTTS or Doppler findings in the large twin. Conclusions: In sFGR-II, survival after laser surgery is primarily dependent on the condition of the small twin.
1 November 2013 in Fetal Diagnosis and Therapy
Verified
Journal Article
Open access
PDF file
PCPetya Chaveeva
Petya Chaveeva
PKP. Kosinski
P. Kosinski
DPD. Puglia
D. Puglia
LPLiona C. Poon
Liona C. Poon
KNKypros Herodotos Nicolaides
Kypros Herodotos Nicolaides
Objective: To compare the outcome of trichorionic triplet (TCT) and dichorionic triplet (DCT) pregnancies managed expectantly and those with embryo reduction (ER) at 10-14 weeks to twins or singletons. Methods: This was a retrospective study of triplet pregnancies with 3 live fetuses managed expectantly or by ER. Data were combined with the results of previous studies that used similar entry criteria and outcome measures. The management options were compared for rates of miscarriage and preterm birth <33 weeks. Results: In TCTs managed expectantly (n = 358), the rates of miscarriage and preterm birth were 3.1 and 35.1%. Compared to the expectantly managed TCTs, the rate of miscarriage was higher and preterm birth lower in TCTs with ER to 2 fetuses (n = 833, 7.3 and 13.1%, respectively) and TCTs with ER to 1 fetus (n = 78, 11.5 and 8.7%). In DCTs managed expectantly (n = 136), the rates of miscarriage and preterm birth were 8.8 and 46.0%. In DCTs with ER to 2 fetuses (n = 15) or ER to 1 fetus (n = 42), there was a non-significant increase in miscarriage (13.3 and 16.7%, respectively) and decrease in preterm birth (23.1 and 8%, respectively). Conclusions: In TCT and DCT pregnancies, ER increases the rate of miscarriage but reduces the rate of preterm birth.
25 April 2022 in Journal of Perinatal Medicine
Verified
Journal Article
Closed access
NVNicola Volpe
Nicola Volpe
CSCihat Sen
Cihat Sen
STSifa Turan
Sifa Turan
WSWaldo Sepulveda
Waldo Sepulveda
Asma KhalilAsma Khalil
Asma Khalil
PKPrzemek Kozinski
Przemek Kozinski
This recommendation document follows the mission of the World Association of Perinatal Medicine in collaboration with the Perinatal Medicine Foundation. We aim to bring together groups and individuals throughout the world for precise standardization to implement the ultrasound evaluation of the fetus in the first trimester of pregnancy and improve the early detection of anomalies and the clinical management of the pregnancy. The aim is to present a document that includes statements and recommendations on the standard evaluation of the fetal anatomy in the first trimester, based on quality evidence in the peer-reviewed literature as well as the experience of perinatal experts around the world.
24 February 2011 in Fetal Diagnosis and Therapy
Verified
Journal Article
Closed access
PCPetya Chaveeva
Petya Chaveeva
ICIlma F. Carbone
Ilma F. Carbone
ASArgyro Syngelaki
Argyro Syngelaki
RARanjit Akolekar
Ranjit Akolekar
KNKypros Herodotos Nicolaides
Kypros Herodotos Nicolaides
Objective: To examine the effect of method of conception on adverse pregnancy outcome after the 11–13 weeks scan. Methods: Prospective screening study for adverse obstetric outcomes in women with singleton pregnancies and live fetus with no obvious defects at 11+0–13+6 weeks. The method of conception was recorded as spontaneous, in vitro fertilization (IVF) and assisted by ovulation induction (OI) drugs without IVF. Regression analysis was performed to examine the association between the method of conception and pregnancy outcome after adjustment for maternal characteristics. Results: In the study population of 41,577 pregnancies, conception was spontaneous in 40,261 (96.9%), by IVF in 634 (1.5%) and by OI in 682 (1.6%). In the pregnancies conceived by assisted reproductive technology, compared to spontaneous conceptions, there was a higher risk of stillbirth, pre-eclampsia, gestational hypertension, gestational diabetes mellitus, delivery of small for gestational age neonates and caesarean section. However, multiple regression analysis showed that after taking into account maternal characteristics, the only significant contributions of IVF were for pre-eclampsia and elective caesarean section and the contributions of OI were for miscarriage, spontaneous early preterm delivery and small for gestational age. Conclusions: Conception by IVF and OI is associated with increased risk for adverse pregnancy outcome.