Niche, a growing problem for gynecologist and obstetrician.

• Newton de Paula Ishikawa

  55 67 999856828

  Author

• Nathalia Bersi Ishikawa

  Author

• Mayra Prado Rodrigues

  Author

• Maria Clara de Oliveira Junqueira

  Author

• César Augusto Sobrinho

  Author

• Iandara Schettert Silva

  Author

• Rondon Tosta Ramalho

  Author

• Ricardo Dutra Aydos

  Author

Niche formation is a growing problem in Brazil and worldwide. Today, cesarean delivery rates far exceed levels recommended by the World Health Organization. The procedure constitutes the most common surgery in the world, and its most frequent complication is niche formation (84% prevalence), as detected by sonohysterography. Several gynecological problems related to this cesarean scar defect can ensue, with the most frequent symptom being abnormal uterine bleeding. Obstetric problems in subsequent pregnancies include uterine rupture, abnormal placentation, and cesarean scar pregnancy. Recommended treatments yield good results, but there is no consensus on niche prevention, owing to an incomplete understanding of its pathophysiology. Comparisons of surgical techniques have revealed no significant differences. Further studies are needed to elucidate the multifactorial pathophysiology of niche and help to develop approaches for preventing its occurrence.

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Copyright (c) 2020 Newton de Paula Ishikawa, Nathalia Bersi Ishikawa, Mayra Prado Rodrigues, Maria Clara de Oliveira Junqueira, César Augusto Sobrinho, Iandara Schettert Silva, Rondon Tosta Ramalho, Ricardo Dutra Aydos

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