Title: Tackling Caesarean Scar Pregnancy to Target Morbidly Adherent Placenta Previa– A Viable Option?

Authors: Dr S.Sreelatha, Dr. Manjula M

 DOI:  https://dx.doi.org/10.18535/jmscr/v5i10.91

Abstract

Introduction: The late consequences of lower segment caesarean delivery namely scar pregnancy and morbidly adherent placenta in the lower uterus were thought to be two separate entities.  Recently few studies have shown them to be a continuum.

Aim of the study was to analyse the clinical features, associations and the morbidity pattern of scar pregnancy and morbidly adherent placenta previa in pregnancies following caesarean delivery. Methodology – This was a descriptive study conducted in the Department of O&G, Government Medical College Thiruvananthapuram from January to December 2016. All cases diagnosed as CSP and MAPP were included.

Results: There were 8 caesarean scar pregnancy cases and 14 morbidly adherent placenta previa cases in our study. Regarding previous obstetric details, one significant finding was that in all cases where the indication for previous CS was known (72.7%), caesarean delivery was conducted before the onset of active labour. Maternal morbidity was significantly high in MAPP when compared to CSP

Conclusion: As MAPP is considered a continuum of CSP and is definitely more morbid than CSP it is better to diagnose and tackle CSP at an early gestation at least in a subset of women who wishes not to continue a high risk pregnancy.

Keywords: caesarean scar pregnancy, morbidly adherent placenta previa

Abbreviations: CSP – caesarean scar pregnancy, MAPP – morbidly adherent placenta previa, USS – ultra sound scan MRI- magnetic resonance imaging.

References

  1. Vial Y, Petignat P, Hohlfeld P. Pregnancy in a Cesarean scar. Ultrasound Obstet Gynecol 2000;16:592–3
  2. Timor-Tritsch IE, Monteagudo A. Unforeseen consequences of the increasing rate of cesarean deliveries: early placenta accreta and cesarean scar pregnancy. A review. American journal of obstetrics and gynecology. 2012 Jul 31;207(1):14-29.
  3. Zosmer N, Fuller J, Shaikh H, Johns J, Ross JA. Natural history of early first‐trimester pregnancies implanted in Cesarean scars. Ultrasound in Obstetrics & Gynecology. 2015 Sep 1;46(3):367-75.
  4. Timor‐Tritsch IE, Monteagudo A, Cali G, Palacios‐Jaraquemada JM, Maymon R, Arslan AA, Patil N, Popiolek D, Mittal KR. Cesarean scar pregnancy and early placenta accreta share common histology. Ultrasound in Obstetrics & Gynecology. 2014 Apr 1;43(4):383-95.
  5. Sinha P, Mishra M. Caesarean scar pregnancy: a precursor of placenta percreta/accreta. Journal of Obstetrics and Gynaecology. 2012 Oct 1;32(7):621-3
  6. Timor‐Tritsch IE, Monteagudo A, Cali G, Vintzileos A, Viscarello R, Al‐Khan A, Zamudio S, Mayberry P, Cordoba MM, Dar P. Cesarean scar pregnancy is a precursor of morbidly adherent placenta. Ultrasound in Obstetrics & Gynecology. 2014 Sep 1;44(3):346-53
  7. Betrán AP, Ye J, Moller AB, Zhang J, Gülmezoglu AM, Torloni MR. The increasing trend in caesarean section rates: global, regional and national estimates: 1990-2014. PloS one. 2016 Feb 5;11(2):
  8. Solheim KN, Esakoff TF, Little SE, Cheng YW, Sparks TN, Caughey AB. The effect of cesarean delivery rates on the future incidence of placenta previa, placenta accreta, and maternal mortality. The Journal of Maternal-Fetal & Neonatal Medicine. 2011 Nov 1;24(11):1341-6.
  9. Ash A, Smith A, Maxwell D. Caesarean scar pregnancy. BJOG: An International Journal of Obstetrics & Gynaecology. 2007 Mar 1;114(3):253-63.
  10. Selvaraj LR, Rose N, Ramachandran M. Pitfalls in Ultrasound Diagnosis of Cesarean Scar Pregnancy. The Journal of Obstetrics and Gynecology of India.:1-9.
  11. Chou MM, Ho ES, Lee YH. Prenatal diagnosis of placenta previa accreta by transabdominal color Doppler ultrasound. Ultrasound in obstetrics & gynecology. 2000 Jan 1;15(1):28-3.
  12. Abuhamad A. Calì G, Giambanco L, Puccio G, Forlani F. Morbidly adherent placenta: evaluation of ultrasound diagnostic criteria and differentiation of placenta accreta from percreta. Ultrasound in obstetrics & gynecology. 2013 Apr 1;41(4):406-12.
  13. Maymon R, Halperin R, Mendlovic S, Schneider D, Vaknin Z, Herman A, Pansky M. Ectopic pregnancies in Caesarean section scars: the 8 year experience of one medical centre. Human Reproduction. 2004 Feb 1;19(2):278-84.
  14. Riteau AS, Tassin M, Chambon G, Le Vaillant C, de Laveaucoupet J, Quéré MP, Joubert M, Prevot S, Philippe HJ, Benachi A. Accuracy of ultrasonography and magnetic resonance imaging in the diagnosis of placenta accreta. PLoS One. 2014 Apr 14;9(4)
  15. D'antonio F, Iacovella C, Palacios Jaraquemada J, Bruno CH, Manzoli L, Bhide A. Prenatal identification of invasive placentation using magnetic resonance imaging: Systematic review and meta‐ Ultrasound in Obstetrics & Gynecology. 2014 Jul 1;44(1):8-16.ing in the diagnosis of placenta accreta. PLoS One. 2014 Apr 14;9(4)
  16. Eller AG, Bennett MA, Sharshiner M, Masheter C, Soisson AP, Dodson M, Silver RM. Maternal morbidity in cases of placenta accreta managed by a multidisci-plinary care team compared with standard obstetric care. Obstetrics & Gynecology. 2011 Feb 1;117(2, Part 1):331-7.
  17. ACOG Committee Opinion no. 529 july 2012 Placenta Accreta
  18. Agten AK, Cali G, Monteagudo A, Oviedo J, Ramos J, Timor-Tritsch I. The clinical outcome of cesarean scar pregnancies implanted “on the scar” versus “in the niche”. American journal of obstetrics and gynecology. 2017 Jan.

Corresponding Author

Dr Manjula M

Assistant professor, Dept. of O & G, SAT Hospital,

Govt. Medical College, Trivandrum