ablação dos vasos placentários com laser para tratamento da síndrome de transfusão feto-fetal grave: experiência de um centro universitário no brasil laser ablation of placental vessels for treatment of severe twin-twin transfusion syndrome: experience from an university center in brazil
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2010
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Abstract
OBJETIVO: descrever os resultados do tratamento da síndrome de transfusão feto-fetal grave com a ablação vascular placentária a laser em um centro universitário do Brasil. MÉTODOS: estudo observacional retrospectivo que incluiu pacientes tratadas na Universidade Estadual de Campinas entre 2007 e 2009. A ablação vascular placentária foi realizada em casos de transfusão feto-fetal grave (estágios II, III e IV de Quintero) diagnosticados até a 26ª semana de gravidez. As principais variáveis avaliadas foram a idade gestacional no parto, a sobrevida (alta do berçário) de pelo menos um gêmeo e o comprometimento neurológico nos sobreviventes. Regressão logística foi utilizada para investigar a influência do comprimento do colo uterino, da idade gestacional e do estágio da doença (antes da cirurgia) sobre o parto/abortamento e o óbito fetal após a intervenção, sobre o parto pré-termo extremo e a sobrevida. RESULTADOS: em toda a amostra, pelo menos uma criança sobreviveu em 63,3% dos casos (19/30). Entre as gestantes que não tiveram parto/abortamento após à cirurgia, a sobrevida de pelo menos um gêmeo foi 82,6% (19/23). Nesse subgrupo (n=23), a idade gestacional média no parto foi 31,9 semanas e o comprometimento neurológico ocorreu em um neonato (1/31; 3,2%). O comprimento do colo uterino influenciou na ocorrência de parto/abortamento após a cirurgia (valor de p=0,008). Entre sete pacientes (7/30; 23,3%) que apresentaram essa complicação, cinco (5/7; 71,4%) tinham medidas do colo uterino menores do que 15 mm. Entre as 23 gestantes que não tiveram parto/abortamento após a cirurgia, os estágios mais avançados da doença (III e IV) aumentaram o risco de parto antes de 32 semanas (valor de p=0,025) e diminuíram a chance de sobrevida de ambas as crianças (valor de p=0,026). CONCLUSÕES: os resultados são semelhantes aos descritos na literatura. Na presente amostra, os principais fatores associados a piores resultados foram o colo uterino curto (menor do que 15 mm) e os estágios mais avançados da doença (III e IV) no momento em que o tratamento foi realizado.
PURPOSE: to describe the results of laser ablation of placental vessels for the treatment of severe twin-to-twin transfusion syndrome in an university center in Brazil. METHODS: retrospective observational study of patients treated at UNICAMP from 2007 to 2009. Laser ablation of placental vessels was performed in cases of severe twin-twin transfusion syndrome (Quintero stages II, III and IV) diagnosed before 26 complete weeks of gestation. The main variables evaluated in this series were gestational age at delivery, survival (discharge from the nursery) of at least one twin and neurological damage in survivors. Logistic regression was used to investigate the influence of cervical length, gestational age and stage of the disease (before the surgery) on the occurrence of delivery/abortion and fetal death after the intervention, and the influence on severe preterm birth and survival. RESULTS: in the whole series, at least one twin survived in 63.3% of cases (19/30). Among patients who did not have delivery/abortion after surgery, the survival of at least one twin was 82.6% (19/23). In this subgroup (n=23), mean gestational age in delivery was 31.9 weeks and neurological damage was identified in one neonate (1/31; 3.2%). Cervix length influenced the occurrence of delivery/abortion after surgery (p-value=0.008). Among seven patients (7/30; 23.3%) who carried this complication, five (5/7; 71.4%) had cervix length lower than 15 mm. Among the 23 patients who did not have delivery/abortion as a result of the surgery, the highest stages of the disease (III and IV) increased the risk of delivery prior to 32 complete weeks of gestation (p-value=0.025) and decreased the chance of survival of both twins (p-value=0.026). CONCLUSIONS: the results are similar to those available in the literature. In our series, the main factors associated with poorer results were short cervix (lower than 15 mm) and the highest stages of the disease (III and IV) at the time of the treatment.
PURPOSE: to describe the results of laser ablation of placental vessels for the treatment of severe twin-to-twin transfusion syndrome in an university center in Brazil. METHODS: retrospective observational study of patients treated at UNICAMP from 2007 to 2009. Laser ablation of placental vessels was performed in cases of severe twin-twin transfusion syndrome (Quintero stages II, III and IV) diagnosed before 26 complete weeks of gestation. The main variables evaluated in this series were gestational age at delivery, survival (discharge from the nursery) of at least one twin and neurological damage in survivors. Logistic regression was used to investigate the influence of cervical length, gestational age and stage of the disease (before the surgery) on the occurrence of delivery/abortion and fetal death after the intervention, and the influence on severe preterm birth and survival. RESULTS: in the whole series, at least one twin survived in 63.3% of cases (19/30). Among patients who did not have delivery/abortion after surgery, the survival of at least one twin was 82.6% (19/23). In this subgroup (n=23), mean gestational age in delivery was 31.9 weeks and neurological damage was identified in one neonate (1/31; 3.2%). Cervix length influenced the occurrence of delivery/abortion after surgery (p-value=0.008). Among seven patients (7/30; 23.3%) who carried this complication, five (5/7; 71.4%) had cervix length lower than 15 mm. Among the 23 patients who did not have delivery/abortion as a result of the surgery, the highest stages of the disease (III and IV) increased the risk of delivery prior to 32 complete weeks of gestation (p-value=0.025) and decreased the chance of survival of both twins (p-value=0.026). CONCLUSIONS: the results are similar to those available in the literature. In our series, the main factors associated with poorer results were short cervix (lower than 15 mm) and the highest stages of the disease (III and IV) at the time of the treatment.
| Reference Key |
peralta2010revistaablao
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| Authors | ;Cleisson Fábio Andrioli Peralta;Luciana Emy Ishikawa;João Renato Bennini;Angélica de Fátima Assunção Braga;Izilda Rodrigues Machado Rosa;Maria Cristina Biondi |
| Journal | 2018 international conference on information technologies, infotech 2018 - proceedings |
| Year | 2010 |
| DOI |
10.1590/S0100-72032010000500003
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