Prenatal Sonographic Diagnosis and Management of a Twin Pregnancy with Placenta Previa and Hemicardia

Seeds, John W.; Herbert, William N.P.; Richards, Douglas L.

doi:10.1055/s-2007-999798

Cited by 21 publications

(17 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As a consequence it remains unclear at what time the heart resumed its function. A similar mysterious case of hemicardia has been reported by Seeds et al [7], in which regular pulsatile movement of a small tissue mass within the chest was detected at 23 weeks after the diagnosis of fetal death.…”

Section: Discussionsupporting

confidence: 74%

“…This indicates developmental arrest during early embryogenesis. Several authors [1,2,6,7] suggested that heart malformation patterns seen in hemicardia depend on the developmental stage when reversed circulation occurred. Therefore, we speculate that, during its embryogenesis, a reversed but incomplete flow from the co-twin through vascular anastomosis started to occur ( fig.…”

Section: Discussionmentioning

confidence: 99%

“…It has been reported that 50-75% of acardiac pregnancy resulted in fetal or neonatal death [3,7]. In the monochorionic twin pregnancy, identifying growth discrepancy as well as functional differences manifested by a hydropic change and an abnormal heart rate in one fetus during the first trimester, may help the early detection of those who are at risk of TRAP sequence.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, discordant development between fetuses is also postulated to be required for the establishment of the TRAP sequence [1,2]. Although several prenatal diagnoses [3,[7][8][9][10][11][12][13][14] have been reported, ultasonographic findings associated with this condition during the first trimester have not been elucidated. We report a case of discordant monochorionic twin pregnancy, which resulted in TRAP sequence.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

First-Trimester Findings Associated with Twin Reversed Arterial Perfusion Sequence

et al. 2004

View full text Add to dashboard Cite

Introduction: Regarding its pathogenesis, discordant development in early gestation, as well as vascular anastomoses between twins are postulated to be required for the establishment of the twin-reversed arterial perfusion (TRAP) sequence. However, first trimester findings associated with this complication have not yet been reported. Case: A discordant monochorionic twin was revealed upon examination of a 24-year-old primigravida at 11 weeks’ gestation. Cystic masses were identified on the back of the smaller twin, later followed by the appearance of skin edema and pericardial effusion, indicating cardiac failure. Subsequently, despite diagnosis of fetal demise at 15 weeks the lower body was shown to have further developed and the heartbeats appeared again, resulting in an acardia anceps or hemicardia. No remarkable change was observed in the larger normal twin. Conclusion: This occurrence was considered consistent with the current hypothesis regarding the pathogenesis of the acardiac anomaly. First trimester discordancy in a monochorionic twin gestation is considered to represent an early manifestation of TRAP sequence.

show abstract

Section: Discussionsupporting

confidence: 74%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

First-Trimester Findings Associated with Twin Reversed Arterial Perfusion Sequence

et al. 2004

View full text Add to dashboard Cite

show abstract

“…In some instances, as in our patient, fetal hydrops can develop in pump twin. Perinatal mortality in pump twins is about 55% [7,8]. The weight (in grams) of the acardiac twin is calculated with the following formula: (1.2 x longest lenght2) -(1.7 x longest lenght) [9].…”

Section: Discussionmentioning

confidence: 99%

TRAP (Twin Reversed Arterial Perfusion) sequence

et al. 2014

View full text Add to dashboard Cite

AbstractTRAP (Twin Reversed Arterial Perfusion) sequence is a rare malformation that occurs in monozygotic twin pregnancies. Twin weight ratio in our case was 76% (body weight of pump twin was 1800 g, acardiac twin 1370 g), but in spite of that the pump twin had a mild clinical picture with premature birth, fetal hydrops (mild pleural effusion; hypoproteinemia; on the 3rd day of life the baby was without edema and the level of his serum proteins were in referral ranges) and mild myocardial hypertrophy of left ventricle (echocardiography performed on the 28th day of life was normal).

show abstract

Acardiac anomaly spectrum

et al. 2000

View full text Add to dashboard Cite

Background Acardiac anomaly spectrum is a rare congenital malformation found in monozygotic twin pregnancy. Besides the absence of heart, the condition is associated with variable grades of developmental disruption. Thus, no two cases are similar. Methods This case report is based on physical examination and autopsy findings. Results The twin had acardia and partial development of head and face. There was complete absence of upper extremities. Conclusions The twin reversed arterial perfusion (TRAP) theory is the most accepted etiology of the disorder. Normally, the cephalic pole is the most severely affected, being most distal to the retrograde perfusion. In acardia, partial development of head, face, and brain is usually associated with the development of the upper extremities. However, in the present case, there was extensive cephalic development in the absence of upper extremity development. Teratology 62:356–359, 2000. © 2000 Wiley‐Liss, Inc.

show abstract

Prenatal Sonographic Diagnosis and Management of a Twin Pregnancy with Placenta Previa and Hemicardia

Cited by 21 publications

References 5 publications

First-Trimester Findings Associated with Twin Reversed Arterial Perfusion Sequence

First-Trimester Findings Associated with Twin Reversed Arterial Perfusion Sequence

TRAP (Twin Reversed Arterial Perfusion) sequence

Acardiac anomaly spectrum

Contact Info

Product

Resources

About