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2.
Gynecol Obstet Fertil ; 43(12): 810-4, 2015 Dec.
Artigo em Francês | MEDLINE | ID: mdl-26603332

RESUMO

OBJECTIVE: It seeks to assess the appearance of the hysterorrhaphy area and seeks hematoma in asymptomatic patients at 48hours of their cesarean. METHOD: It is common to see, ultrasound or CT scan, collection of images next to the hysterorrhaphy area in symptomatic patients after cesarean. Their interpretation remains difficult which led us to propose a prospective study looking for an evocative image collection or hematoma in asymptomatic patients at 48hours of their cesarean. It was directed suprapubic and transvaginal pelvic ultrasound with study area hysterorrhaphy and inter-uterine bladder space. RESULTS: The suprapubic ultrasound examination was performed in 31 asymptomatic patients after collecting their written consent. Twenty-eight patients also received an endovaginal examination. The studied area was easily identified by visualizing the path of hysterotomy and hyperechoic aspect of the hysterorrhaphy. In 28 cases there were no abnormal image in front of the hysterorrhaphy area. In 3 cases, an evocative image of a haematic collection was displayed and measured a maximum of only 49mm long axis with a weak Doppler signal. The exam was very well tolerated by patients, especially by transvaginal route. Also the duration of ultrasound never exceeded 58seconds and remained fastest vaginally. CONCLUSION: This preliminary work to a prospective double cohort (symptomatic patients and asymptomatic patients) has clarified the technique to use and focus in the search for a collection next to the hysterorrhaphy area. Ultrasound examination postoperatively, especially vaginally, is very fast, well tolerated with satisfactory image quality. Finally in this cohort of asymptomatic patients, it was very unusual for a collection, confirming the credit to be given to this type of image in case of symptoms after cesarean.


Assuntos
Doenças Assintomáticas , Cesárea/efeitos adversos , Hematoma/diagnóstico por imagem , Complicações Pós-Operatórias/diagnóstico por imagem , Útero/diagnóstico por imagem , Estudos de Coortes , Feminino , Hematoma/etiologia , Humanos , Gravidez , Estudos Prospectivos , Ultrassonografia , Técnicas de Fechamento de Ferimentos
3.
J Gynecol Obstet Biol Reprod (Paris) ; 44(6): 565-76, 2015 Jun.
Artigo em Francês | MEDLINE | ID: mdl-25263159

RESUMO

OBJECTIVES: To report the management of carriers of haemophilia in a French university hospital and assess different issues of these patients. PATIENTS AND METHODS: Retrospective study of the carriers of haemophilia who consulted at the university hospital of Montpellier, France, between 1995 and 2011. Information were obtained from medical records and from a questionnaire sent to carriers. We recorded data about biological characteristics, bleeding tendency and management of pregnancies. RESULTS: Sixty-four carriers of haemophilia A or B were included. Their median FVIII or FIX level was 52 % (range, 15-137 %). Menstrual bleeding lasted more than 7 days in 31 % of carriers. A total of 142 pregnancies started in 54 carriers, and 101 resulted in live births with 26 boys with haemophilia. Sixty-two prenatal diagnoses carried out, 15 have terminated their pregnancy because of a hemophiliac male fetus. Seventy-six percent of deliveries were vaginal delivery and 49 % took place in a level-3 maternity. There were 10.8 % and 8.5 % primary and secondary post-partum hemorrhage, respectively. CONCLUSION: The risk of bleeding among carriers of haemophilia is associated with their antihemophilic factor level. To improve the management of carriers, a multidisciplinary and standardized medical record, with a specific questionnaire to evaluate bleedings, could be considered. A regional register that lists all carriers, regardless of their antihemophilic factor level, would also be useful.


Assuntos
Hemofilia A/sangue , Hemofilia B/sangue , Complicações Hematológicas na Gravidez/sangue , Resultado da Gravidez/epidemiologia , Aborto Eugênico/estatística & dados numéricos , Adulto , Feminino , França , Hemofilia A/epidemiologia , Hemofilia B/epidemiologia , Heterozigoto , Hospitais Universitários/estatística & dados numéricos , Humanos , Masculino , Gravidez , Complicações Hematológicas na Gravidez/epidemiologia
4.
J Gynecol Obstet Biol Reprod (Paris) ; 44(1): 47-52, 2015 Jan.
Artigo em Francês | MEDLINE | ID: mdl-24837850

RESUMO

AIM: Create a record of the role given to members of the psychological professions in CPDPN Centers (multidisciplinary prenatal diagnosis). After more than 10 years in operation, describe the work methods of the different centers and their members, evaluate the possible diversity of practices and clarify the scope of interventions used by psychologists with patients and members of the CPDPN. METHOD: A descriptive survey consisting of 71 questions sent to psychologists, paediatricians and psychiatrists involved with the 48 CPDPN Centers in France. The main parameters studied are the means used by the CPDPN and their organization in the field of psychology, pre-medical counseling for the termination of pregnancy (IMG), conditions of hospitalization and post-IMG counseling. RESULTS: The survey revealed a high-level of homogeneous practices in the French CPDPN Centers between members of the medical and psychological professions, through joint consultations, ethical committees or specific case meetings for complex fetal pathologies. CONCLUSIONS AND PERSPECTIVES: This study has established a working relationship between members of the psychological professions working in the French CPDPN Centers and has led to the creation of a listing/directory, which facilitates the exchange of information. Video-conferencing is currently being considered in order to share respective practices.


Assuntos
Serviços de Saúde Materna , Equipe de Assistência ao Paciente , Papel do Médico , Diagnóstico Pré-Natal , Psicologia , Comportamento Cooperativo , Aconselhamento , Coleta de Dados , Feminino , França , Humanos , Serviços de Saúde Materna/organização & administração , Equipe de Assistência ao Paciente/organização & administração , Gravidez , Diagnóstico Pré-Natal/ética , Diagnóstico Pré-Natal/métodos , Diagnóstico Pré-Natal/psicologia , Recursos Humanos
5.
Hum Reprod ; 29(12): 2814-20, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25336706

RESUMO

We report a case of discordant phenotypic sex in monozygotic twins mosaic 47,XXY/46,XX: monozygotic heterokaryotypic twins. The twins presented with cognitive and comprehension delay, behavioural and language disorders, all symptoms frequently reported in Klinefelter syndrome. Molecular zygosity analysis with several markers confirmed that the twins are in effect monozygotic (MZ). Array comparative genomic hybridization found no evidence for the implication of copy number variation in the phenotypes. Ultrasound scans of the reproductive organs revealed no abnormalities. Endocrine tests showed a low testosterone level in Twin 1 (male phenotype) and a low gonadotrophin level in Twin 2 (female phenotype) which, combined with the results from ultrasound examination, provided useful information for potentially predicting the future fertility potential of the twins. Blood karyotypes revealed the presence of a normal 46,XX cell line and an aneuploïd 47,XXY cell line in both patients. Examination of the chromosome constitutions of various tissues such as blood, buccal smear and urinary sediment not surprisingly showed different proportions for the 46,XX and 47,XXY cell lines, which most likely explains the discordant phenotypic sex and mild Klinefelter features. The most plausible underlying biological mechanism is a post-zygotic loss of the Y chromosome in an initially 47,XXY zygote. This would result in an embryo with both 46,XX and 47,XXY cells lines which could subsequently divide into two monozygotic embryos through a twinning process. The two cell lines would then be distributed differently between tissues which could result in phenotypic discordances in the twins. These observations emphasize the importance of regular paediatric evaluations to determine the optimal timing for fertility preservation measures and to detect new Klinefelter features which could appear throughout childhood in the two subjects.


Assuntos
Síndrome de Klinefelter/genética , Mosaicismo/embriologia , Fenótipo , Gemelaridade Monozigótica/genética , Pré-Escolar , Hibridização Genômica Comparativa , Variações do Número de Cópias de DNA , Feminino , Gonadotropinas/sangue , Humanos , Cariótipo , Masculino , Testosterona/sangue , Gêmeos/genética
6.
Gynecol Obstet Fertil ; 40(7-8): 402-5, 2012.
Artigo em Francês | MEDLINE | ID: mdl-22727740

RESUMO

OBJECTIVES: To evaluate if internal version with ruptured membranes is a risk factor of cesarean section for the second twin. PATIENTS AND METHODS: Two hundred and fifty-nine twins vaginal deliveries after 33 weeks of gestation from 1997 to 2009 in a level 3 maternity. A retrospective case-control study comparing two groups: cases of cesarean section on second twin and five twins vaginal deliveries following the case. Active management of the second twin delivery was performed with a short intertwin delivery. RESULTS: Eleven cesarean sections on the second twin were performed (4.2%). The main indication was failure of internal version. The risk of cesarean section was significantly greater when the internal version was performed with ruptured membranes (OR: 25.4 IC 95% [2.3-275.7] P<0.003) and when intertwin time delivery interval was increased (8.1±5.1 vs 16.7±6.3, P<0.001). DISCUSSION AND CONCLUSION: The rupture of amniotic membranes before or during the internal podalic version is associated with a risk of failure and cesarean for the second twin. We recommend to perform the internal podalic version with unruptured membranes according to the French recommendations.


Assuntos
Cesárea/estatística & dados numéricos , Ruptura Prematura de Membranas Fetais/epidemiologia , Gravidez de Gêmeos/estatística & dados numéricos , Versão Fetal/estatística & dados numéricos , Adulto , Âmnio/cirurgia , Feminino , Ruptura Prematura de Membranas Fetais/cirurgia , Humanos , Incidência , Gravidez , Estudos Retrospectivos , Risco
7.
J Gynecol Obstet Biol Reprod (Paris) ; 41(5): 445-53, 2012 Sep.
Artigo em Francês | MEDLINE | ID: mdl-22554682

RESUMO

OBJECTIVES: To audit French maternity units' obstetric procedures in delivering women who have undergone previous caesarean section. MATERIAL AND METHODS: [corrected] Survey by questionnaire collecting the obstetrical practices about agreement and methods of delivery of women with previous caesarean section in France in 2009. The questionnaire was sent by email to 472 private and public maternity units of grades 1, 2 and 3. RESULTS: One hundred and seventy-five units (37%) replied, about 305,710 new-borns representated, few private maternity units answered (12.6% of the answers), despite their accounting for 30.2% of obstetric work; 50.9% had no written policy for the management of patients with previous caesarean; 53.1% of units relied on written consent from women attempting vaginal delivery after previous caesarean. The documentation concerning previous caesarean section was considered important by 73.1% of units. Rates for acceptance of attempted vaginal delivery were as follows: after a transverse lower uterine segment incision - 100% of maternity units; after a transverse corporeal incision - 30.3% of units and after a vertical incision - 25.1% of units; 55.4% of maternities induced labour after a previous caesarean section, 29.9% of them with prostaglandin E2; 64% used internal tocometry. Radiopelvimetry was a routine examination for 55.9% of grade 1 units, compared with 13.5% of grade 3 (P=0.000035). Induction was practised by more grade 3 units (78.3%) than grade 1 units (44%) (P=0.009). No team acknowledged carrying out subsequent caesarean delivery as a matter of principle. CONCLUSIONS: This national survey, statistically representative in terms of the numbers of deliveries, gives an objective view of different practices, according to type and grade of maternity unit in France, in 2009. The data indicate that it is desirable to devise specific recommendations in order to harmonise management, bearing in mind the frequency of caesarean sections.


Assuntos
Cesárea , Parto Obstétrico/métodos , Recesariana , Feminino , França , Humanos , Padrões de Prática Médica , Gravidez , Inquéritos e Questionários , Prova de Trabalho de Parto , Ruptura Uterina , Nascimento Vaginal Após Cesárea
8.
J Gynecol Obstet Biol Reprod (Paris) ; 41(1): 69-75, 2012 Feb.
Artigo em Francês | MEDLINE | ID: mdl-21802219

RESUMO

OBJECTIVE: To assess risk factors for anal sphincter injury during operative vaginal delivery using spatulas. PATIENTS AND METHODS: A monocentric retrospective study of all assisted vaginal deliveries using Thierry and Teissier's spatulas between January 1st, 2008 and December 31st, 2009 in a teaching level III maternity. We studied risk factors such as primiparity, gestational age, maternal age, previous perineal laceration, level and type of presentation, type of expulsion, unsuccessful extraction and successive use of tools, episiotomy, type of anaesthesia and birth weight. RESULTS: There were 346 perineal tears (60.5%); among them, 175 (31%) were type 1, 131 (23%) type 2, 35 (6.1%) type 3 and five (0.9%) type 4. There were 235 episiotomy (41.1%). There was no statistically significant difference between all the supposed risk factors and the severe perineal tears. CONCLUSION: There are no relationship between third and fourth degree perineal lesions during spatula's delivery and supposed risk factors of anal sphincter injury. Only statistical tendances between first vaginal delivery and anal sphincter injury and between occipitosacral delivery and anal sphincter injury were found. We need further randomized studies comparing assisted births using spatulas, forceps and vacuum extractors to better assess perineal tears risk factors.


Assuntos
Canal Anal/lesões , Extração Obstétrica/instrumentação , Forceps Obstétrico/efeitos adversos , Adolescente , Adulto , Episiotomia/estatística & dados numéricos , Extração Obstétrica/efeitos adversos , Feminino , Idade Gestacional , Humanos , Lacerações/classificação , Lacerações/epidemiologia , Lacerações/etiologia , Idade Materna , Pessoa de Meia-Idade , Paridade , Gravidez , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
9.
Ultrasound Obstet Gynecol ; 38(4): 440-4, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21936003

RESUMO

OBJECTIVE: To investigate the accuracy of prenatal axial three-dimensional (3D) ultrasound in predicting the absence or presence of cleft palate in the presence of cleft lip. METHODS: Between March 2005 and January 2009, there were 81 cases with a prenatal two-dimensional (2D) ultrasound screening diagnosis of unilateral or bilateral cleft lip at 22-25 weeks of gestation referred to our tertiary care center. Of these, 79 fetuses were included in this prospective study and two were excluded. Axial 3D ultrasound imaging of the fetal palate was performed and the diagnoses were compared with clinical findings at delivery. The frequencies of intact and cleft palate, the degree of association between the prenatal predictions and postnatal findings and the probability of detection of cleft lip and palate were determined. RESULTS: Of 79 prenatal predictions, 77 (97%) were correct and the association between the prenatal predictions and postnatal findings was strong. The sensitivity for detection of cleft lip and palate within this high-risk population was 100% and the specificity was 90%. In one of the excluded cases, the palate could not be visualized due to a fetal prone position. There were chromosomal anomalies in 4% of cases and associated structural or growth anomalies in 23%, termination of pregnancy was carried out in 4% and intrauterine fetal demise occurred in 3%. CONCLUSION: Axial 3D ultrasound of the fetal palate has high accuracy in identifying prenatal cleft palate when cleft lip is diagnosed at mid-trimester 2D ultrasound screening.


Assuntos
Fenda Labial/diagnóstico por imagem , Fissura Palatina/diagnóstico por imagem , Palato Duro/diagnóstico por imagem , Ultrassonografia Pré-Natal , Fenda Labial/embriologia , Fissura Palatina/embriologia , Feminino , Idade Gestacional , Humanos , Imageamento Tridimensional , Recém-Nascido , Masculino , Palato Duro/anormalidades , Palato Duro/embriologia , Gravidez , Estudos Prospectivos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Ultrassonografia Pré-Natal/métodos
10.
Ultrasound Obstet Gynecol ; 37(6): 733-5, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21618315

RESUMO

We report the case of a large leg tumor in a fetus at 36 weeks of gestation. The tumor's location, ultrasound characteristics and magnetic resonance imaging (MRI) findings enabled a prenatal diagnosis of congenital fibrosarcoma and allowed us to establish the prognosis. After multidisciplinary discussion, it was decided that the pregnancy should continue to 38 weeks, with surgery or neo-adjuvant chemotherapy scheduled after delivery. Unfortunately, the tumor unexpectedly burst in utero and the newborn died of the consequences of hemorrhagic shock, despite rapid amputation. Histological examination confirmed the nature of the tumor. The prognosis of congenital fibrosarcoma is generally good when there are no metastases. MRI is key to establishing a prenatal diagnosis. However, rupture of the tumor can result in fatal hemorrhaging and the pregnancy should be monitored closely before scheduled delivery.


Assuntos
Fibrossarcoma/diagnóstico , Perna (Membro) , Neoplasias Cutâneas/diagnóstico , Adulto , Evolução Fatal , Feminino , Fibrossarcoma/congênito , Fibrossarcoma/patologia , Humanos , Recém-Nascido , Imageamento por Ressonância Magnética , Masculino , Gravidez , Cuidado Pré-Natal , Diagnóstico Pré-Natal , Ruptura Espontânea , Neoplasias Cutâneas/congênito , Neoplasias Cutâneas/patologia , Ultrassonografia Pré-Natal
13.
Gynecol Obstet Fertil ; 37(4): 294-9, 2009 Apr.
Artigo em Francês | MEDLINE | ID: mdl-19362035

RESUMO

OBJECTIVE: The transabdominal cervico-isthmic cerclage could to be proposed in case of failure of vaginal cerclage, 2nd trimester fetal losses and cervical defects. The efficiency of the laparoscopic approach, more recently described, has to be demonstrated for the prevention of obstetrical accident. PATIENTS AND METHODS: This study is a retrospective monocentric evaluation of 14 laparoscopic cervico-isthmic cerclages performed with Benson modified technique before pregnancy between 2005 and 2007. Previous obstetrical accidents, etiology of cervical incompetence and patient outcome after cerclage were compared. RESULTS: Median age of the patients was 33.5 years; 93% had previous fetal losses or preterm delivery and 42.9% had failure of Mac Donald cerclages. The indication of laparoscopic cervico-isthmic cerclage was Mac Donald cerclage failure (six cases), and eight cases of anatomic incompatibility of Mac Donald cerclage. Mean duration of laparoscopic cervico-isthmic cerclage was 45 minutes. All patients were hospitalized on an outpatient basis. No operative complication was reported. Six women were pregnant after cerclage: five deliveries by caesarean section at term, and one first trimester foetal loss. DISCUSSION AND CONCLUSION: The cervico-isthmic cerclage can be easily performed by laparoscopy. The indications are strictly the same as cervico-isthmic cerclages by laparotomy. Increasing the number of term deliveries and the obstetrical outcome of these patients, the efficiency of the cervico-isthmic cerclage by laparoscopy is demonstrated.


Assuntos
Cerclagem Cervical/métodos , Laparoscopia/métodos , Incompetência do Colo do Útero/cirurgia , Adulto , Colo do Útero/cirurgia , Feminino , Morte Fetal , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Estudos Retrospectivos
15.
Ultrasound Obstet Gynecol ; 31(6): 652-6, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18504771

RESUMO

OBJECTIVES: To describe a three-dimensional (3D) ultrasound technique for assessing the fetal soft palate. METHODS: A prospective study conducted from April to December 2006 included 87 fetuses in a low-risk population. Fetal ultrasound scans were performed between 21 and 25 weeks of gestation to determine the normal 3D ultrasound view of the fetal soft tissues of the palate. The sonographers used a 30 degrees-inclined axial 3D view of the fetal palate. Ultrasound images obtained in this view were compared with fetopathological specimens of the same gestational age by two observers, both pediatric surgeons. Each observer indicated whether they thought that the uvula or the velum could be detected, and the differences in responses between the observers were assessed. RESULTS: The frequencies of detection of the uvula and velum of each observer varied between 80% and 90%. The observers showed a significant difference in judging the visualization of the uvula, but not in judging the velum. CONCLUSIONS: A 30 degrees -inclined axial 3D ultrasound view seems to be effective in assessing the integrity of the fetal soft palate.


Assuntos
Fissura Palatina/diagnóstico por imagem , Imageamento Tridimensional/métodos , Palato Mole/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Fissura Palatina/embriologia , Feminino , Humanos , Variações Dependentes do Observador , Palato Mole/embriologia , Gravidez , Segundo Trimestre da Gravidez , Estudos Prospectivos , Sensibilidade e Especificidade , Ultrassonografia Pré-Natal/normas
17.
Arch Pediatr ; 15(6): 1042-8, 2008 Jun.
Artigo em Francês | MEDLINE | ID: mdl-18406114

RESUMO

UNLABELLED: In 1997 a large French epidemiological study (Epipage) showed increased mortality and morbidity in Languedoc Roussillon when compared to other regions of France. In order to update information, we set up a regional database about very preterm infants born in Languedoc-Roussillon since 2003. Our objective was to analyze the evolution of mortality and of the morbidity in very preterm infants between 1997 and 2003-2005. METHODS: We analyzed mortality and the morbidity (respiratory, neurological, digestive) of the very preterm infants born alive between 22 and 32 weeks amenorrhea and admitted alive in neonatology included in Epipage study in 1997 and of those included in the regional database in 2003-2005. Between these 2 periods, professional practices were significantly improved as the perinatal network was set up and perinatal care was regionalized. RESULTS: We analyzed the data collected in 3121 subjects of Epipage study and 1111 subjects of the regional database. We observed a significant reduction (P<0.05) of neonatal mortality (8% versus 23%), rate of bronchopulmonary dysplasia (9% versus 19%) and of periventricular leukomalacia (9% versus 18%). During this period, there were significant increases (P<0.05) in the rates of antenatal corticotherapy (87% versus 61%) and caesarean section (72% versus 38%). CONCLUSION: We observed a significant improvement of morbidity of very preterm infants and a decreased mortality for the youngest subjects which was concomitant of an improvement of the professional's practices. It is necessary to take into account these results to propose relevant informations to the professionals with and thus indirectly to the parents.


Assuntos
Doenças do Prematuro/epidemiologia , Doenças do Prematuro/terapia , Assistência Perinatal/organização & administração , Programas Médicos Regionais/organização & administração , França , Humanos , Mortalidade Infantil , Recém-Nascido , Recém-Nascido Prematuro , Estudos Prospectivos
18.
Diabetes Metab ; 34(1): 19-25, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18242113

RESUMO

The obesity epidemic is of some concern in women of reproductive age. Maternal obesity is associated with many pregnancy complications, especially gestational diabetes and hypertensive disorders of pregnancy. Delivery in obese women is characterized by a high caesarean-section rate and an increased risk of anaesthetic and postoperative complications. Weight retention after birth may increase the risk of type 2 diabetes in the long term. Foetal risks include macrosomia, malformations and increased perinatal mortality, with the long-term infant health marked by a higher risk of obesity and metabolic disorders. Optimal management includes preconception counselling, pregravid weight-loss programmes, monitoring of gestational weight gain, repeated screening for pregnancy complications and long-term follow-up to minimize the social and economic consequences of pregnancy in overweight women.


Assuntos
Obesidade/fisiopatologia , Complicações na Gravidez/fisiopatologia , Resultado da Gravidez , Gravidez/fisiologia , Aberrações Cromossômicas/estatística & dados numéricos , Diabetes Mellitus Tipo 2/epidemiologia , Feminino , Macrossomia Fetal/epidemiologia , Humanos , Recém-Nascido , Obesidade/complicações , Fatores de Risco
19.
J Gynecol Obstet Biol Reprod (Paris) ; 36(8): 817-20, 2007 Dec.
Artigo em Francês | MEDLINE | ID: mdl-17716827

RESUMO

We report on a 35-year-old woman who underwent at 15 weeks of pregnancy exclusive parenteral nutrition for recurrent episodes of acute pancreatitis. She had a pancreatico-jejunal anastomosis stenosis secondary to cephalic duodenopancreatectomy. Nocturnal exclusive parenteral nutrition was used 79 days during pregnancy and 12 days during post-partum. The fetal growth was normal and the foetal well-being was normal. She presented cholestasis at 30 weeks of pregnancy treated medically. She delivered at 33 weeks of pregnancy by cesarean section a healthy baby girl with normal birth weight.


Assuntos
Pancreatite/terapia , Nutrição Parenteral Total , Complicações na Gravidez/terapia , Doença Aguda , Adulto , Feminino , Humanos , Gravidez , Resultado da Gravidez , Resultado do Tratamento
20.
Ultrasound Obstet Gynecol ; 29(2): 159-65, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17252526

RESUMO

OBJECTIVES: The aim of this study was to describe a novel three-dimensional (3D) ultrasound rendering technique to examine the normal fetal posterior palate and to assess its correspondence with the real fetal anatomy. METHODS: A prospective longitudinal study was conducted from January to October 2005 and included 100 fetuses in a low-risk population. Fetal ultrasound examinations were performed at 17, 22, 27 and 32 weeks' gestation to determine the normal 3D ultrasound view of the fetal palate at different gestational ages. The ultrasound scans were performed using the strict anterior axial plane of the starting reconstruction volume and the underside 3D view of the fetal palate. The 3D view of the fetal palate was compared with the normal anatomical view of the fetal palate obtained by surgical fetopathological examination of fetuses at the same gestational ages. The sonographic visualization rates of seven defined anatomical landmarks of the fetal palate were computed for each gestational age. The visualization rates across gestational ages were compared by use of the Cochrane Q test. The reliability of detection of each anatomical landmark across gestational ages was determined by Cronbach's Alpha. RESULTS: In all cases a 3D ultrasound view of the fetal maxilla and secondary palate was obtained at each period of gestation and corresponded well to the fetal anatomical specimens. The seven defined anatomical landmarks of the fetal palate were identified in 42-100% of cases. The visualization rates across gestational ages were significantly different in five of these anatomical landmarks. These differences can be explained by different developmental processes of these anatomical structures. The overall reliability of visualization across the gestational ages for the anatomical landmarks was medium to very high (0.73-0.96), except for the landmark interpalatal suture which was low (0.48). CONCLUSIONS: This technique of anterior axial 3D view reconstruction of the fetal palate seen by an underside view can provide unique diagnostic information on the integrity of the secondary palate. This innovative, simple and rapid technique may become the reference technique in ultrasound investigation of the fetal palate, and should be of value in diagnosing isolated secondary cleft palate or palatal involvement when cleft lip and alveolus are diagnosed.


Assuntos
Imageamento Tridimensional/métodos , Palato/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Feminino , Idade Gestacional , Humanos , Imageamento Tridimensional/normas , Palato/embriologia , Gravidez , Estudos Prospectivos , Estudos Retrospectivos
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