References

1 NJ, S., RJ, S., K, H., W, S. & KH, N. The hidden mortality of monochorionic twin pregnancies. British journal of obstetrics and gynaecology 104 , doi:10.1111/j.1471-0528.1997.tb10948.x (1997).
2 MV, S. et al. Endoscopic laser surgery versus serial amnioreduction for severe twin-to-twin transfusion syndrome. The New England journal of medicine 351 , doi:10.1056/NEJMoa032597 (2004).
3 R, L. et al. Neonatal outcome in preterm monochorionic twins with twin-to-twin transfusion syndrome after intrauterine treatment with amnioreduction or fetoscopic laser surgery: comparison with dichorionic twins. American journal of obstetrics and gynecology196 , doi:10.1016/j.ajog.2007.01.036 (2007).
4 R, R. et al. Cervical length as a prognostic factor for preterm delivery in twin-to-twin transfusion syndrome treated by fetoscopic laser coagulation of chorionic plate anastomoses. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 25 , doi:10.1002/uog.1798 (2005).
5 V, B., P, L., L, G. & R, D. Preterm prelabor rupture of membranes and fetal survival after minimally invasive fetal surgery: a systematic review of the literature. Fetal diagnosis and therapy31 , doi:10.1159/000331165 (2012).
6 M, H. et al. Incidence of complications in twin-twin transfusion syndrome after selective fetoscopic laser photocoagulation: a single-center experience. American journal of obstetrics and gynecology 201 , doi:10.1016/j.ajog.2009.07.046 (2009).
7 Ramesha PAPANNA, M. D., M.P.H.,1,2 Dana BLOCK-ABRAHAM, D.O.,4 Lovepreet K Mann, M.B.B.S.,3 Irina A. BUHIMSCHI, M.D., M.M.S.,1 Michael BEBBINGTON, M.D., M.H.Sc.,3 Elisa GARCIA, B.A.,3 Nahla KAHLEK, M.D.,5 Christopher HARMAN, M.D.,4 Anthony JOHNSON, D.O.,3 Ahmet BASCHAT, M.D.,4 and Kenneth J. MOISE, Jr., M.D.3.
8 Stirnemann, J. et al. Preterm premature rupture of membranes is a collateral effect of improvement in perinatal outcomes following fetoscopic coagulation of chorionic vessels for twin-twin transfusion syndrome: a retrospective observational study of 1092 cases. BJOG125 , 1154-1162, doi:10.1111/1471-0528.15147 (2018).
9 Snowise, S. et al. Preterm prelabor rupture of membranes after fetoscopic laser surgery for twin-twin transfusion syndrome.Ultrasound Obstet Gynecol 49 , 607-611, doi:10.1002/uog.15958 (2017).
10 CN, L., P, Z. & RC, Y. Differing mechanisms of inhibition of calcium increases in human uterine myocytes by indomethacin and nimesulide.American journal of obstetrics and gynecology 184 , doi:10.1067/mob.2001.114915 (2001).
11 J, K.-B. et al. Effect of indometacin pretreatment on protamine sulfate-mediated relaxation of the isolated rat uterus: the role of the antioxidative defense system. Pharmacological reports : PR 63 , doi:10.1016/s1734-1140(11)70618-1 (2011).
12 Shannon, A. The Use of Long-Term Indomethacin Stabilizes Cervical Length… : Obstetrics & Gynecology. doi:10.1097/01.AOG.0000514117.88934.6d (2021).
13 Turan, O. M. Prolonged early antenatal indomethacin exposure is safe for fetus and neonate.
14 von Elm, E. et al. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. The Lancet 370 , 1453-1457, doi:10.1016/S0140-6736(07)61602-X (2007).
15 RA, Q. et al. Staging of twin-twin transfusion syndrome.Journal of perinatology : official journal of the California Perinatal Association 19 , doi:10.1038/sj.jp.7200292 (1999).
16 F, S. et al. Fetoscopic laser coagulation of the vascular equator versus selective coagulation for twin-to-twin transfusion syndrome: an open-label randomised controlled trial. Lancet (London, England) 383 , doi:10.1016/S0140-6736(13)62419-8 (2014).
17 Stata Statistical Software v. Release 16 (StataCorp LLC, College Station, TX, 2019).
18 Malshe, A. Preterm delivery after fetoscopic laser surgery for twin–twin transfusion syndrome: etiology and risk factors - Malshe - 2017 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library. doi:10.1002/uog.15972 (2021).
19 R, C.-M. et al. Incidence and clinical implications of early inadvertent septostomy after laser therapy for twin-twin transfusion syndrome. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 37 , doi:10.1002/uog.8922 (2011).
20 SH, P. et al. Iatrogenic perforation of intertwin membrane after laser surgery for twin-to-twin transfusion syndrome.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology44 , doi:10.1002/uog.13445 (2014).
21 WF, L. et al. Effects and outcomes of septostomy in twin-to-twin transfusion syndrome after fetoscopic laser therapy.BMC pregnancy and childbirth 19 , doi:10.1186/s12884-019-2555-5 (2019).
22 AA, N. et al. Perinatal outcome of twin-to-twin transfusion syndrome complicated with incidental septostomy after laser surgery: a systematic review and meta-analysis. Prenatal diagnosis , doi:10.1002/pd.5935 (2021).
23 JU, O. et al. Chorioamniotic membrane separation after fetoscopy in monochorionic twin pregnancy: incidence and impact on perinatal outcome. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 47 , doi:10.1002/uog.14936 (2016).
24 M, T., M, N., S, M., M, S. & M, M. Chorioamniotic Membrane Separation after Fetoscopic Laser Photocoagulation. Fetal diagnosis and therapy 43 , doi:10.1159/000472713 (2018).
25 R, P., LK, M., A, J., H, S.-H. & KJ, M. Chorioamnion separation as a risk for preterm premature rupture of membranes after laser therapy for twin-twin transfusion syndrome. Obstetrics and gynecology115 , doi:10.1097/AOG.0b013e3181d57335 (2010).
26 AA, N. et al. Perinatal outcomes of iatrogenic chorioamniotic separation following fetoscopic surgeries: a systematic review and meta-analysis. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology , doi:10.1002/uog.23588 (2021).
27 Espinoza, J. et al. Early Laser Surgery is not associated with very Preterm Delivery or Reduced Neonatal Survival in TTTS.Ultrasound Obstet Gynecol , doi:10.1002/uog.22190 (2020).
28 A, R. et al. Physical examination-indicated cerclage in twin pregnancy: a randomized controlled trial. American journal of obstetrics and gynecology 223 , doi:10.1016/j.ajog.2020.06.047 (2020).
29 CA, C. & S, H. Hospitalisation and bed rest for multiple pregnancy.The Cochrane database of systematic reviews 2010 , doi:10.1002/14651858.CD000110.pub2 (2010).
30 CA, C., T, G., K, M., A, D. & M, P. 17-hydroxyprogesterone caproate for twin pregnancy: a double-blind, randomized clinical trial.American journal of obstetrics and gynecology 204 , doi:10.1016/j.ajog.2010.12.042 (2011).
31 CL, C. & RK, F. Ritodrine HCL for the prevention of premature labor in twin pregnancies. Acta geneticae medicae et gemellologiae25 , doi:10.1017/s0001566000014355 (1976).
32 DJ, R. et al. A trial of 17 alpha-hydroxyprogesterone caproate to prevent prematurity in twins. The New England journal of medicine 357 , doi:10.1056/NEJMoa070641 (2007).
33 EB, F., E, C., M, P., M, S. & KH, N. Progesterone and the risk of preterm birth among women with a short cervix. The New England journal of medicine 357 , doi:10.1056/NEJMoa067815 (2007).
34 JE, N. et al. Progesterone for the prevention of preterm birth in twin pregnancy (STOPPIT): a randomised, double-blind, placebo-controlled study and meta-analysis. Lancet (London, England) 373 , doi:10.1016/S0140-6736(09)60947-8 (2009).
35 MV, S. et al. Prevention of preterm delivery by 17 alpha-hydroxyprogesterone caproate in asymptomatic twin pregnancies with a short cervix: a randomized controlled trial. American journal of obstetrics and gynecology 208 , doi:10.1016/j.ajog.2013.01.032 (2013).
36 S, L. et al. Cervical pessaries for prevention of preterm birth in women with a multiple pregnancy (ProTWIN): a multicentre, open-label randomised controlled trial. Lancet (London, England)382 , doi:10.1016/S0140-6736(13)61408-7 (2013).
37 S, W. et al. Vaginal progesterone to prevent preterm birth in multiple pregnancy: a randomized controlled trial. Journal of perinatal medicine 40 , doi:10.1515/jpm-2012-0057 (2012).
38 SN, C. et al. Prevention of preterm birth in triplets using 17 alpha-hydroxyprogesterone caproate: a randomized controlled trial.Obstetrics and gynecology 113 , doi:10.1097/AOG.0b013e318193c677 (2009).
39 C, R. et al. Arabin cervical pessary for prevention of preterm birth in cases of twin-to-twin transfusion syndrome treated by fetoscopic LASER coagulation: the PECEP LASER randomised controlled trial. BMC pregnancy and childbirth 17 , doi:10.1186/s12884-017-1435-0 (2017).
40 MV, Z. et al. North American Fetal Therapy Network: Timing of and indications for delivery following laser ablation for twin-twin transfusion syndrome. American journal of obstetrics & gynecology MFM 1 , doi:10.1016/j.ajogmf.2019.02.001 (2019).
41 Papanna, R. et al. Cerclage for cervical shortening at fetoscopic laser photocoagulation in twin-twin transfusion syndrome.Am J Obstet Gynecol 206 , 425 e421-427, doi:10.1016/j.ajog.2012.02.022 (2012).
42 HE, R. et al. Cyclo-oxygenase (COX) inhibitors for treating preterm labour. The Cochrane database of systematic reviews2015 , doi:10.1002/14651858.CD001992.pub3 (2015).
43 ES, M., WA, G., L, F. & BK, R. Indomethacin and antibiotics in examination-indicated cerclage: a randomized controlled trial.Obstetrics and gynecology 123 , doi:10.1097/AOG.0000000000000228 (2014).
44 SJ, F., R, M., C, B. & SJ, L. Programmed cell death (apoptosis) as a possible pathway to metalloproteinase activation and fetal membrane degradation in premature rupture of membranes. American journal of obstetrics and gynecology 182 , doi:10.1067/mob.2000.107330 (2000).
45 S, P. & JF, S. Premature rupture of the fetal membranes. The New England journal of medicine 338 , doi:10.1056/NEJM199803053381006 (1998).
46 N, A. et al. A role for matrix metalloproteinase-9 in spontaneous rupture of the fetal membranes. American journal of obstetrics and gynecology 179 , doi:10.1016/s0002-9378(98)70141-3 (1998).
47 J, M., DJ, T. & SC, B. Increased concentration of pro-matrix metalloproteinase 9 in term fetal membranes overlying the cervix before labor: implications for membrane remodeling and rupture. American journal of obstetrics and gynecology 182 , doi:10.1016/s0002-9378(00)70232-8 (2000).
48 Estrada‐Gutiérrez, F. V. O. G. Role of matrix metalloproteinases in preterm labour - Vadillo‐Ortega - 2005 - BJOG: An International Journal of Obstetrics & Gynaecology - Wiley Online Library. doi:10.1111/j.1471-0528.2005.00579.x (2021).
49 JF, S. Extracellular matrix dynamics and fetal membrane rupture.Reproductive sciences (Thousand Oaks, Calif.) 20 , doi:10.1177/1933719111424454 (2013).
50 Papanna. Histologic changes of the fetal membranes after fetoscopic laser surgery for twin-twin transfusion syndrome | Pediatric Research , <https://www.nature.com/articles/pr2015105> (2015).
51 JC, S., WA, G. & SE, G. The effect of short-term indomethacin therapy on amniotic fluid volume. American journal of obstetrics and gynecology 192 , doi:10.1016/j.ajog.2004.12.036 (2005).
52 RJ, S., S, L., NM, F. & PR, B. A double-blind randomized study of fetal side effects during and after the short-term maternal administration of indomethacin, sulindac, and nimesulide for the treatment of preterm labor. American journal of obstetrics and gynecology 188 , doi:10.1067/mob.2003.255 (2003).
53 SM, L., L, S.-R. & AM, K. Assessing the neonatal safety of indomethacin tocolysis: a systematic review with meta-analysis.Obstetrics and gynecology 106 , doi:10.1097/01.AOG.0000168622.56478.df (2005).
54 AL, H., L, S.-R. & AM, K. Antenatal exposure to indomethacin increases the risk of severe intraventricular hemorrhage, necrotizing enterocolitis, and periventricular leukomalacia: a systematic review with metaanalysis. American journal of obstetrics and gynecology212 , doi:10.1016/j.ajog.2014.10.1091 (2015).
55 A, P. et al. Acute renal failure in the neonate induced by the administration of indomethacin as a tocolytic agent. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association11 (1996).
56 AS, S., S, D. & N, S. ACOG_Antenatal indomethacin tocolysis is associated with an increased need for surgical ligation of patent ductus arteriosus in preterm infants. Journal of obstetrics and gynaecology Canada : JOGC = Journal d’obstetrique et gynecologie du Canada : JOGC 32 , doi:10.1016/S1701-2163(16)34496-6 (2010).
57 B, K., KJ, M., G, M. & R, W. 6 fetuses_Long-term indomethacin therapy decreases fetal urine output and results in oligohydramnios.American journal of perinatology 8 , doi:10.1055/s-2007-999349 (1991).
58 BG, S. et al. ACOG_The risk of necrotizing enterocolitis after indomethacin tocolysis. Pediatrics 128 , doi:10.1542/peds.2011-0265 (2011).
59 BV, A. P., WA, G., RB, H., HA, T. & SL, D. ACOG_Indomethacin tocolysis and risk of necrotizing enterocolitis. Obstetrics and gynecology 96 , doi:10.1016/s0029-7844(00)00846-2 (2000).
60 S, A. A., JS, G., HM, S., SS, S. & J, L. Neonatal outcome after exposure to indomethacin in utero: a retrospective case cohort study.American journal of obstetrics and gynecology 189 , doi:10.1067/s0002-9378(03)00662-8 (2003).
61 SK, H., JR, S., DE, M. & ZA, B. Oligohydramnios associated with prostaglandin synthetase inhibitors in preterm labour. British journal of obstetrics and gynaecology 97 , doi:10.1111/j.1471-0528.1990.tb01807.x (1990).
62 T, N. et al. Renal impairment in very low birthweight infants following antenatal indomethacin administration. Acta paediatrica Japonica : Overseas edition 36 , doi:10.1111/j.1442-200x.1994.tb03162.x (1994).