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Heidari N, Kumaran K, Pagano JJ, Hornberger LK. Natural History of Secundum ASD in Preterm and Term Neonates: A Comparative Study. Pediatr Cardiol 2024; 45:710-721. [PMID: 38366300 DOI: 10.1007/s00246-023-03403-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 12/29/2023] [Indexed: 02/18/2024]
Abstract
Atrial septal defects (ASDs) are common in neonates. Although past studies suggest ASDs ≥ 3 mm in term neonates (TNs) are less likely to close, there is paucity of data regarding the natural history in preterm neonates (PNs), information that would inform surveillance. We sought to compare spontaneous closure rates and need for intervention for ASDs in TNs/near term (≥ 36 weeks) versus PNs (< 36 weeks). We included all TNs and PNs who underwent echocardiography at ≤ 1 month between 2010 and 2018 in our institution with an ASD ≥ 3 mm, without major congenital heart disease, and with repeat echocardiogram(s). Spontaneous resolution was defined as size diminution to < 3 mm or closure. We included 156 TNs (mean gestational age at birth 38.6 ± 1.4 weeks) and 156 PNs (29.6 ± 3.7 weeks) with a mean age at follow-up of 16 ± 19 and 15 ± 21 months, respectively (p = 0.76). Based on maximum color Doppler diameter, in TNs, ASD resolution occurred in 95% of small (3-5 mm), 87% of moderate (5.1-8 mm), and 60% of large (> 8 mm) defects; whereas, in PNs, resolution occurred in 79% of small, 76% of moderate, and 33% of large ASDs. There was a significant association between size and ASD resolution in TNs (p = 0.003), but not PNs (p = 0.17). Overall, ASD resolution rate was higher in TNs (89%) versus PNs (78%) (p = 0.009), and fewer TNs (1%) compared to PNs (7%) required ASD intervention (p = 0.02). Most ASDs identified in TNs and PNs spontaneously resolve. PNs, however, demonstrate lower ASD resolution and higher intervention rates within all size groups. These data should inform follow-up of affected neonates.
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Affiliation(s)
- Negar Heidari
- Fetal & Neonatal Cardiology Program, Division of Cardiology, Department of Pediatrics, University of Alberta, Women & Children's Health Research Institute, and the Stollery Children's Hospital, WCMC, 8440 112th Street Edmonton, Alberta, T6G 2B7, Canada
| | - Kumar Kumaran
- Division of Neonatology, Department of Pediatrics, University of Alberta, Women & Children's Health Research Institute, and the Stollery Children's Hospital, Alberta, Canada
| | - Joseph J Pagano
- Fetal & Neonatal Cardiology Program, Division of Cardiology, Department of Pediatrics, University of Alberta, Women & Children's Health Research Institute, and the Stollery Children's Hospital, WCMC, 8440 112th Street Edmonton, Alberta, T6G 2B7, Canada
| | - Lisa K Hornberger
- Fetal & Neonatal Cardiology Program, Division of Cardiology, Department of Pediatrics, University of Alberta, Women & Children's Health Research Institute, and the Stollery Children's Hospital, WCMC, 8440 112th Street Edmonton, Alberta, T6G 2B7, Canada.
- Department of Obstetrics & Gynecology, Lois Hole Hospital for Women, Royal Alexandra Hospital, University of Alberta, 10245 111th Street Edmonton, Alberta, T5G 0B6, Canada.
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Dannesbo S, Blixenkrone-Moeller E, Pihl CA, Sillesen AS, Voegg RO, Davidsen AS, Lind LE, Jeppesen DL, Kruse C, Noerager B, Dodd JK, Jorgensen FS, Raja AA, Colan SD, Mertens L, Hjortdal VE, Vejlstrup N, Anderson RH, Bundgaard H, Iversen K. A novel algorithm for classification of interatrial communications within the oval fossa in the newborn. Cardiol Young 2023; 33:1942-1949. [PMID: 36408693 DOI: 10.1017/s1047951122003365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND An interatrial communication is present in most neonates. The majority are considered the "normal" patency of the oval foramen, while a minority are abnormal atrial septal defects. Differentiation between the two with transthoracic echocardiography may be challenging, and no generally accepted method of classification is presently available. We aimed to develop and determine the reliability of a new classification of interatrial communications in newborns. METHODS AND RESULTS An algorithm was developed based on echocardiographic criteria from 495 newborns (median age 11[8;13] days, 51.5% females). The algorithm defines three main categories: patency of the oval foramen, atrial septal defect, and no interatrial communication as well as several subtypes. We found an interatrial communication in 414 (83.6%) newborns. Of these, 386 (93.2%) were categorised as patency of the oval foramen and 28 (6.8%) as atrial septal defects.Echocardiograms from another 50 newborns (median age 11[8;13] days, 36.0% female), reviewed by eight experts in paediatric echocardiography, were used to assess the inter- and intraobserver variation of classification of interatrial communications into patency of the oval foramen and atrial septal defect, with and without the use of the algorithm. Review with the algorithm gave a substantial interobserver agreement (kappa = 0.66), and an almost perfect intraobserver agreement (kappa = 0.82). Without the use of the algorithm, the interobserver agreement between experienced paediatric cardiologists was low (kappa = 0.20). CONCLUSION A new algorithm for echocardiographic classification of interatrial communications in newborns produced almost perfect intraobserver and substantial interobserver agreement. The algorithm may prove useful in both research and clinical practice.
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Affiliation(s)
- Sofie Dannesbo
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Elisabeth Blixenkrone-Moeller
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Christian A Pihl
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anne-Sophie Sillesen
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ruth O Voegg
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Agnes S Davidsen
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Louise E Lind
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dorthe L Jeppesen
- Department of Pediatrics, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Charlotte Kruse
- Department of Pediatrics, The Juliane Marie Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Betina Noerager
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - James K Dodd
- Department of Pediatrics, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Finn S Jorgensen
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Fetal Medicine Unit, Department of Obstetrics and Gynecology, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Anna A Raja
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Steven D Colan
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA
| | - Luc Mertens
- Department of Cardiology, The Hospital for Sick Children, Toronto, Canada
| | - Vibeke E Hjortdal
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiothoracic Surgery, The Heart Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Niels Vejlstrup
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Robert H Anderson
- Faculty of Biomedical Sciences, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Henning Bundgaard
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kasper Iversen
- Department of Cardiology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Gaffar S, Siassi B, Cayabyab R, Ebrahimi M, Barton L, Uzunyan M, Ramanathan R. Outcomes of patent foramen ovale greater than 3 mm at birth in extremely low birthweight infants. BMC Pediatr 2023; 23:293. [PMID: 37322472 PMCID: PMC10268431 DOI: 10.1186/s12887-023-04119-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/08/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Foramen ovale (FO) is an obligate fetal shunt that typically resolves after birth, although patency throughout life is not uncommon. The natural history of patent FO (PFO) is known in term infants, but less is known about its course in extremely preterm infants. We describe the echocardiographic changes in FO size from birth to discharge in extremely low birth weight (ELBW) infants in this retrospective study. METHODS Cohort was divided based on size of FO at birth. Size of FO at discharge was measured and evaluated relative to postnatal weight gain. Demographics and clinical outcomes were compared between the two groups. RESULTS Of the 54 ELBW infants, 50 were born with FO less than 3 mm in diameter (small), and 4 were born with FO greater than 3 mm (large). Of small defects, the majority (44/50, 88%) did not increase in size with weight gain, and minority (6/50, 12%) increased in size, and three of these 6 patients, FO grew to be slightly larger than 3 mm. In contrast, all large defects (4 of 4, 100%) nearly doubled in size with postnatal growth. These 4 ELBW infants with enlargement of FO had a flap valve evident on echocardiogram obtained prior to discharge, and subsequently closed on outpatient follow-up echocardiograms, although time to resolution was variable (6 months - 3 years). One infant had presumptive resolution because of the presence of flap valve. CONCLUSION No maternal or neonatal demographic characteristics were predictive of FO enlargement, although, demonstrable flap valve on discharge echocardiogram correlated with resolution of FO on outpatient follow-up echocardiogram. Therefore, based on our data, we recommend that ELBW infants born with large FO should have echocardiographic re-evaluation of the atrial septal opening prior to discharge, to specify the presence of a flap valve or lack thereof, which is an important detail that can help a neonatologist determine the need for outpatient cardiac follow-up.
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Affiliation(s)
- Sheema Gaffar
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine, University of Southern California, LAC General Medical Center, 1200 N State St, IRD Building, Room 820, Los Angeles, CA, 90033-1029, USA.
| | - Bijan Siassi
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine, University of Southern California, LAC General Medical Center, 1200 N State St, IRD Building, Room 820, Los Angeles, CA, 90033-1029, USA
| | - Rowena Cayabyab
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine, University of Southern California, LAC General Medical Center, 1200 N State St, IRD Building, Room 820, Los Angeles, CA, 90033-1029, USA
| | - Mahmood Ebrahimi
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine, University of Southern California, LAC General Medical Center, 1200 N State St, IRD Building, Room 820, Los Angeles, CA, 90033-1029, USA
| | - Lorayne Barton
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine, University of Southern California, LAC General Medical Center, 1200 N State St, IRD Building, Room 820, Los Angeles, CA, 90033-1029, USA
| | - Merujan Uzunyan
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine, University of Southern California, LAC General Medical Center, 1200 N State St, IRD Building, Room 820, Los Angeles, CA, 90033-1029, USA
- Division of Cardiology, Department of Pediatrics, Keck School of Medicine, University of Southern California, LAC General Medical Center, Los Angeles, CA, USA
| | - Rangasamy Ramanathan
- Division of Neonatology, Department of Pediatrics, Keck School of Medicine, University of Southern California, LAC General Medical Center, 1200 N State St, IRD Building, Room 820, Los Angeles, CA, 90033-1029, USA
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4
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Van Praagh R. Interatrial Communications. CONGENIT HEART DIS 2022. [DOI: 10.1016/b978-1-56053-368-9.00009-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Kheiwa A, Hari P, Madabhushi P, Varadarajan P. Patent foramen ovale and atrial septal defect. Echocardiography 2020; 37:2172-2184. [PMID: 33368546 DOI: 10.1111/echo.14646] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 02/07/2020] [Indexed: 11/30/2022] Open
Abstract
Atrial septal defects (ASD) are among the most common congenital heart diseases encountered in adulthood. Patent foramen ovale (PFO) is present in up to 25% of the population. ASD could present as isolated lesion or in association with more complex congenital heart disease form as tetralogy of Fallot, or Ebstein's anomaly of tricuspid valve. There is a wide range of clinical presentation ranging from asymptomatic subjects surviving to adulthood undiagnosed to subjects presenting with right heart failure and severe pulmonary vascular disease (Eisenmenger syndrome). This manuscript is an in depth review of the complex atrial septation, the variable clinical presentation of ASD and PFO, and its clinical and therapeutic implications.
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Affiliation(s)
- Ahmed Kheiwa
- Division of Cardiology, Loma Linda University Medical Center, Loma Linda, CA, USA
| | - Pawan Hari
- Division of Cardiology, Loma Linda University Medical Center, Loma Linda, CA, USA
| | - Pranav Madabhushi
- Division of Cardiology, Loma Linda University Medical Center, Loma Linda, CA, USA
| | - Padmini Varadarajan
- Division of Cardiology, Loma Linda University Medical Center, Loma Linda, CA, USA
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Helwani MA, Donnelly JE, Makan M, De Wet CJ. A Pregnant Woman in the Third Trimester Diagnosed With Acute Respiratory Failure and Severe Lower-Extremity Edema. Chest 2018; 150:e105-e107. [PMID: 27719826 DOI: 10.1016/j.chest.2016.03.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 03/03/2016] [Accepted: 03/15/2016] [Indexed: 10/20/2022] Open
Affiliation(s)
- Mohammad A Helwani
- Department of Anesthesiology, Division of Critical Care Medicine and Cardiothoracic Surgery, Washington University in St. Louis, St. Louis, MO.
| | - Julianne E Donnelly
- Department of Anesthesiology, Division of Critical Care Medicine and Cardiothoracic Surgery, Washington University in St. Louis, St. Louis, MO
| | - Majesh Makan
- Division of Cardiovascular Diseases, Department of Medicine, Washington University in St. Louis, St. Louis, MO
| | - Charl J De Wet
- Department of Anesthesiology, Division of Critical Care Medicine and Cardiothoracic Surgery, Washington University in St. Louis, St. Louis, MO
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7
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Stephensen SS, Steding-Ehrenborg K, Thilén U, Holm J, Hochbergs P, Arheden H, Carlsson M. Changes in blood volume shunting in patients with atrial septal defects: assessment of heart function with cardiovascular magnetic resonance during dobutamine stress. Eur Heart J Cardiovasc Imaging 2018; 18:1145-1152. [PMID: 27585715 PMCID: PMC5837561 DOI: 10.1093/ehjci/jew176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 07/27/2016] [Indexed: 11/29/2022] Open
Abstract
Background The purpose of this study was to determine the effect of stress on left-to-right shunting in patients with atrial septal defect (ASD) and to investigate if the degree of shunting, cardiac output (CO), and right ventricular (RV) volumes are related to exercise capacity. Methods Twenty-six patients with a secundum ASD and 16 healthy volunteers were studied with rest/stress cardiac magnetic resonance using 20 µg/kg/min dobutamine and 0.25–0.75 mg atropine to quantify CO, pulmonary to systemic flow ratio (QP/QS), and left ventricular (LV) and RV volumes. Peak oxygen uptake (VO2peak) was determined on ergospirometry. Results In patients with ASD the QP/QS decreased from 2.0 ± 0.2 at rest to 1.5 ± 0.1 (P < 0.001) during dobutamine stress (n = 20) and shunt volume per heartbeat decreased from 70 ± 9 to 38 ± 9 mL (P < 0.001). However, absolute shunt volume per minute was unchanged (5.1 ± 0.8 vs. 4.5 ± 1.0 L/min, P = 0.32) explained by a higher increase in systemic CO during stress (90 ± 11%) compared with pulmonary CO (43 ± 7%, P < 0.001). In ASD patients, VO2peak correlated with aortic CO during stress (r = 0.77) and QP/QS at rest (r = −0.48) but not during stress (P = 0.09). VO2peak did not correlate with RV volumes in patients. Conclusion Pulmonary to systemic flow ratio and shunt volume per heartbeat decrease during stress in ASD patients. This may be explained by an enhanced LV diastolic function during stress and may have implications to detect disturbances in LV compliance in ASD patients. A high systemic CO during stress is a strong predictor of exercise capacity.
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Affiliation(s)
- Sigurdur S Stephensen
- Clinical Physiology, Department of Clinical Sciences, Lund, Lund University, Lund University Hospital, Lund, Sweden.,Pediatric Cardiology, Department of Clinical Sciences, Lund, Lund University, Lund University Hospital, Lund, Sweden
| | - Katarina Steding-Ehrenborg
- Clinical Physiology, Department of Clinical Sciences, Lund, Lund University, Lund University Hospital, Lund, Sweden.,Physiotherapy, Department of Health Sciences, Lund, Lund University, Lund, Sweden
| | - Ulf Thilén
- Cardiology, Department of Clinical Sciences, Lund, Lund University, Lund University Hospital, Lund, Sweden
| | - Johan Holm
- Cardiology, Department of Clinical Sciences, Lund, Lund University, Lund University Hospital, Lund, Sweden
| | - Peter Hochbergs
- Radiology, Department of Clinical Sciences, Lund, Lund University, Lund University Hospital, Lund, Sweden
| | - Hakan Arheden
- Clinical Physiology, Department of Clinical Sciences, Lund, Lund University, Lund University Hospital, Lund, Sweden
| | - Marcus Carlsson
- Clinical Physiology, Department of Clinical Sciences, Lund, Lund University, Lund University Hospital, Lund, Sweden
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8
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Right to Left Ventricular Diameter Ratio ≥0.42 is the Warning Flag for Suspecting Atrial Septal Defect in Preschool Children: Age- and Body Surface Area-Related Reference Values Determined by M-Mode Echocardiography. Pediatr Cardiol 2016; 37:704-13. [PMID: 26700967 DOI: 10.1007/s00246-015-1334-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 12/15/2015] [Indexed: 10/22/2022]
Abstract
It is not always easy to observe and screen atrial septal defects (ASD) using echocardiography. In addition, there are no established echocardiographic reference indices for screening patients with ASDs. We retrospectively reviewed our database and recruited 151 isolated ASD patients and 2769 healthy subjects. In total, 307 echocardiographic studies were performed for ASD patients. Surgical repairs were done in 75 of the ASD patients. The ratio of right to left ventricular end-diastolic dimensions (RVD/LVD), which was determined by M-mode echocardiography, was used as an index of RV dilatation. After obtaining age- and body surface area (BSA)-related RVD/LVD nomograms in healthy subjects, we calculated the z-scores of RVD/LVD for all subjects and obtained the optimal cut-off values to differentiate patients with ASD from healthy subjects. The optimal cut-off values were high in neonates and gradually decreased with an increase in the age and BSA, but were almost constant in children aged >4 years or whose BSA was >0.65 m(2). The cut-off values of RVD/LVD for suspected ASD were ≥0.42 in children aged >4 years or those whose BSA was >0.65 m(2). Those for an ASD operation were ≥0.46 in those whose BSA > 0.65 m(2). The RVD/LVD determined by M-mode echocardiography is a useful index to evaluate RV dilatation in patients with ASDs. The RVD/LVD ≥ 0.42 is the warning flag for suspecting ASD in preschool children and that ≥0.46 may be a clinical important sign to determine ASD operation.
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Hari P, Pai RG, Varadarajan P. Echocardiographic Evaluation of Patent Foramen Ovale and Atrial Septal Defect. Echocardiography 2014; 32 Suppl 2:S110-24. [DOI: 10.1111/echo.12625] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Pawan Hari
- Division of Cardiology; Loma Linda University Medical Center; Loma Linda California
| | - Ramdas G. Pai
- Division of Cardiology; Loma Linda University Medical Center; Loma Linda California
| | - Padmini Varadarajan
- Division of Cardiology; Loma Linda University Medical Center; Loma Linda California
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10
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Nyrnes SA, Løvstakken L, Torp H, Haugen BO. Blood Flow Imaging?A New Angle-Independent Ultrasound Modality for the Visualization of Flow in Atrial Septal Defects in Children. Echocardiography 2007; 24:975-81. [PMID: 17894577 DOI: 10.1111/j.1540-8175.2007.00508.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Color Doppler imaging (CDI) is the most applied method for evaluation of flow in atrial septal defects (ASD). A new real time ultrasound flow imaging modality called blood flow imaging (BFI) is able to visualize the blood flow in any direction of the image and is not limited by velocity aliasing. The method thereby overcomes the two limitations most often encountered in CDI. In this study we compared BFI with CDI for the visualization of interatrial blood flow in children. METHODS We studied ASD flow in 13 children using both CDI and BFI in the same examination. CDI and BFI cineloops were prepared off-line and both optimal and suboptimal (increased color artifacts) images were presented in random order to four observers. They were asked to range from 0-100 on a visual analogue scale how certain they were of interatrial blood flow. The CDI and BFI ratings were compared using the exact Wilcoxon signed rank test for paired samples. RESULTS All ASDs visualized with CDI were confirmed using BFI. Two of the observers ranked BFI as being significantly better than CDI when the images were optimized. When the images were suboptimal three of the observers rated BFI as being significantly better. CONCLUSIONS This pilot study indicates that BFI improves the visualization of interatrial blood flow in children. To include BFI in the ordinary echocardiography examination is easy and not time consuming. The method may prove to be a useful supplement to CDI in ASD imaging.
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Affiliation(s)
- Siri Ann Nyrnes
- Department of Pediatrics, University Hospital of Trondheim, 7006 Trondheim, Norway.
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11
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Mansencal N, Martin F, Farcot JC, Digne F, Joseph T, Pilliére R, Redheuil A, Lacombe P, Dubourg O. Echocardiographic automated cardiac output measurement of pulmonary output and quantification of intracardiac shunt. Int J Cardiol 2006; 104:25-31. [PMID: 16137505 DOI: 10.1016/j.ijcard.2004.09.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2004] [Revised: 06/23/2004] [Accepted: 09/04/2004] [Indexed: 11/26/2022]
Abstract
BACKGROUND The quantification of intracardiac shunt (ICS) with echocardiographic pulsed-wave Doppler (PWD) method using pulmonary-to-systemic flow ratio (QP/QS ratio) remains difficult and may induce false quantification of pulmonary output. We sought to validate the recent echocardiographic automated cardiac output measurement (ACM) for the calculation of pulmonary output and the quantification of ICS in adults. METHODS One hundred and twenty consecutive patients were divided in 1) 40 patients who underwent echocardiographic and invasive explorations (group I) with groups IA (quantification of ICS using ACM, PWD and invasive oximetric methods in 20 patients) and IB (calculation of pulmonary output with ACM, PWD and thermodilution methods in 20 patients); 2) 80 patients underwent calculation of aortic and pulmonary outputs using echocardiographic ACM and PWD methods (group II). RESULTS The feasibility of ACM and conventional PWD methods for the calculation of pulmonary output was respectively 93.3% and 90%. Correlations between ACM and invasive pulmonary output were strong (r2=0.92 vs. r2=0.80 for PWD). The best correlation and agreement between invasive and echocardiographic QP/QS ratio were observed with ACM (r=0.96 vs. r=0.82 for PWD). Intracardiac shunts were best-classified with ACM, as compared to PWD (respectively 94% and 72%); sensitivities and specificities for evaluation of significant ICS were 92.3% and 100% with ACM (85% and 40% with PWD). CONCLUSIONS This study shows that ACM is a reliable and accurate echocardiographic method for calculating pulmonary output and quantifying ICS in adults and may be routinely performed in clinical practice.
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Affiliation(s)
- Nicolas Mansencal
- Department of Cardiology, Assistance Publique-Hôpitaux de Paris, Ambroise Paré University Hospital, Boulogne, Service de Cardiologie, 9 avenue Charles de Gaulle, 92100 Boulogne, France.
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12
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Crago EA, Kerr ME, Kong Y, Baldisseri M, Horowitz M, Yonas H, Kassam A. The impact of cardiac complications on outcome in the SAH population. Acta Neurol Scand 2004; 110:248-53. [PMID: 15355489 DOI: 10.1111/j.1600-0404.2004.00311.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To determine the impact of cardiac complications (CdCs) on outcomes in patients with acute subarachnoid hemorrhage (SAH). PATIENTS AND METHODS Eighty-one adult aneurysmal SAH patients with a fisher grade >1 and/or a Hunt and Hess grade >2 were recruited for this study. CdCs were defined as electrocardiogram (ECG) changes, myocardial necrosis, arrythmias, or pulmonary edema. Outcomes were assessed at 3, 6 and 12 months by telephone interview using the Modified Rankin Scale (MRS), Glasgow Outcome Scale (GOS), Barthel Index and Medical Outcome study Short Form-36 (SF-36). RESULTS The CdCs occurred in 33% of patients. The most common CdCs were arrythmias and pulmonary edema (30%). There was no significant difference in mortality between the two groups. At 3 months there was a significant difference in the Barthel (P = 0.007) and the SF-36 (P = 0.014) with trends in the GOS (P = 0.049) and the MRS (P = 0.063). At 6 months a significant difference remained in the SF-36 (P = 0.028) and a trend in the Barthel (P = 0.069). CONCLUSION Results show that CdCs may negatively impact outcomes in SAH patients up to 6 months following hemorrhage.
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Affiliation(s)
- E A Crago
- University of Pittsburgh School of Nursing, Pittsburgh, PA 15261, USA.
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Francis RCE, Höhne C, Kaczmarczyk G, Boemke W. Effect of angiotensin II and endothelin-1 receptor blockade on the haemodynamic and hormonal changes after acute blood loss and after retransfusion in conscious dogs. ACTA ACUST UNITED AC 2004; 180:319-28. [PMID: 15030373 DOI: 10.1111/j.1365-201x.2004.01265.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM This study investigates angiotensin II and endothelin-1 mediated mechanisms involved in the haemodynamic, hormonal, and renal response towards acute hypotensive haemorrhage. METHODS Conscious dogs were pre-treated with angiotensin II type 1 (AT1) and/or endothelin-A (ETA) receptor blockers or not. Protocol 1: After a 60-min baseline period, 25% of the dog's blood was rapidly withdrawn. The blood was retransfused 60 min later and data recorded for another hour. Protocol 2: Likewise, but preceded by AT1 blockade with i.v. Losartan. Protocol 3: Likewise, but preceded by ETA blockade with i.v. ABT-627. Protocol 4: Likewise, but with combined AT1 plus ETA blockade. RESULTS In controls, haemorrhage decreased mean arterial pressure (MAP) by approximately 25%, cardiac output by approximately 40%, and urine volume by approximately 60%, increased angiotensin II (3.1-fold), endothelin-1 (1.13-fold), vasopressin (116-fold), and adrenaline concentrations (3.2-fold). Glomerular filtration rate and noradrenaline concentrations remained unchanged. During AT1 blockade, the MAP decrease was exaggerated (-40%) and glomerular filtration rate fell. During ETA blockade, noradrenaline increased after haemorrhage instead of adrenaline, and the MAP recovery after retransfusion was blunted. The decrease in cardiac output was similar in all protocols. CONCLUSIONS Angiotensin II is more important than endothelin-1 for the short-term regulation of MAP and glomerular filtration rate after haemorrhage, whereas endothelin-1 seems necessary for complete MAP recovery after retransfusion. After haemorrhage, endothelin-1 seems to facilitate adrenaline release and to blunt noradrenaline release. Haemorrhage-induced compensatory mechanisms maintain blood flow more effectively than blood pressure, as the decrease in cardiac output--but not MAP--was similar in all protocols.
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Affiliation(s)
- R C E Francis
- Experimental Anaesthesia, Department of Anaesthesiology and Intensive Care Medicine, Charitè, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Berlin, Germany
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14
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Miller-Hance WC, Silverman NH. Transesophageal echocardiography (TEE) in congenital heart disease with focus on the adult. Cardiol Clin 2000; 18:861-92. [PMID: 11236171 DOI: 10.1016/s0733-8651(05)70185-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Remarkable innovations in medical and surgical approaches over the past several decades now allow for correction of major cardiac defects in children, even in early infancy. These advances have provided for survival of many pediatric patients with congenital heart disease into adulthood. Although transthoracic echocardiography remains the primary imaging technique for the characterization of simple and complex congenital cardiovascular malformations in the pediatric and adult age groups, high-resolution transesophageal imaging has markedly expanded the anatomic and hemodynamic assessment in these patients. The benefits of this imaging approach apply particularly to those with challenging or limited transthoracic examinations or poorly characterized congenital cardiovascular malformations. The utility of TEE in defining the anatomy of the usual spectrum of congenital cardiac malformations is well established. The transesophageal approach has been shown to provide additional diagnostic information over conventional transthoracic imaging for specific structural cardiac anomalies and in the perioperative setting, the opportunity for confirmation of preoperative diagnoses, and modification of the surgical plan if new or different pathology is identified. This imaging modality also may reliably provide for immediate detection of suboptimal surgical repairs and significant postoperative residua, potentially improving the efficacy of the surgical intervention. This accounts for the vital role of this technology in perioperative management and integration into the standard of care in many congenital heart centers. The usefulness of TEE also has been documented during diagnostic and therapeutic cardiac catheterizations of patients with structural cardiac anomalies, allowing for safer and more effective application of these technologies. The experience supports the use of TEE as a useful approach in the surveillance of the adult with operated and unoperated congenital heart disease.
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Affiliation(s)
- W C Miller-Hance
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, California, USA.
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15
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Dall'Agata A, McGhie J, Taams MA, Cromme-Dijkhuis AH, Spitaels SE, Breburda CS, Roelandt JR, Bogers AJ. Secundum atrial septal defect is a dynamic three-dimensional entity. Am Heart J 1999; 137:1075-81. [PMID: 10347334 DOI: 10.1016/s0002-8703(99)70365-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The aim of this study was to evaluate the diagnostic relevance of 3-dimensional (3D) echocardiography in the assessment of secundum atrial septum defect (ASD2). METHODS AND RESULTS Twenty-three patients (age 2 to 58 years) with an ASD2 were studied by transthoracic (n = 9) or transesophageal (n = 14) echocardiography for the acquisition of a 3D data set before undergoing surgical repair. Qualitative (location, shape, and structure) and quantitative (largest and smallest anteroposterior and superoinferior diameters) characteristics were analyzed and compared with surgical findings. Intraobserver and interobserver variability were assessed. The gross anatomy of the ASD2, shown by the 3D images, was confirmed by the surgeon in 21 of 23 patients, but the presence of membranous or fenestrated remnants of the valvula foramina ovalis in the defect was not optimally visualized in 7 patients. Three-dimensional echocardiography revealed changes in diameter and shape of the ASD2 during the cardiac cycle. The measured largest and smallest anteroposterior diameters and their intraobserver and interobserver agreement were 274 +/- 12 mm, r = 0. 95 (P <.001), r = 0.92 (P <.001), and 194 +/- 9 mm, r = 0.96 (P <. 001), r = 0.94 (P <.001), respectively. The measured largest and smallest superoinferior diameter and their intraobserver and interobserver agreement were 304 +/- 26 mm, r = 0.90 (P <.001), r = 0.97 (P <.001), and 204 +/- 10 mm, r = 0.83 (P <.001), r = 0.84 ( P <.001), respectively. The correlation coefficient between 2D and 3D echocardiography for the largest anteroposterior and superoinferior diameter was r = 0.69 (P <.001) and r = 0.68 (P =.05), respectively. The correlation coefficient between the measurements from 3D reconstructions and direct surgical measurements was r = 0.20 (P = not significant) and r = 0.57 (P <.05), whereas between 2D and surgery was r = 0.50 (P <.05) and r = 0.26 (P = not significant). CONCLUSIONS ASD2 has a complex morphology. Three-dimensional echocardiography provides better qualitative and quantitative information on its dynamic geometry, location, and extension as compared with standard 2D echocardiography and might be useful for device selection during catheter-based closure of ASD2.
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Affiliation(s)
- A Dall'Agata
- Departments of Cardiothoracic Surgery, Cardiology, and Pediatric Cardiology, Erasmus Medical Center Rotterdam, The Netherlands
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16
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Oelberg DA, Marcotte F, Kreisman H, Wolkove N, Langleben D, Small D. Evaluation of right ventricular systolic pressure during incremental exercise by Doppler echocardiography in adults with atrial septal defect. Chest 1998; 113:1459-65. [PMID: 9631778 DOI: 10.1378/chest.113.6.1459] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
STUDY OBJECTIVES Pulmonary hypertension is the most important complication in patients with atrial septal defect (ASD), but its role in limiting exercise has not been examined. This study sought to evaluate exercise performance in adults with ASD and determine the contribution of elevated pulmonary artery pressure in limiting exercise capacity. DESIGN We used Doppler echocardiography during exercise in 10 adults (aged 34 to 70 years) with isolated ASD (New York Heart Association class I, II) and an equal number of matched control subjects. Incremental exercise was performed on an electrically braked upright cycle ergometer. Expired gases and VE were measured breath-by-breath. Two-dimensional and Doppler echocardiographic images were obtained at rest prior to exercise to determine ASD size, stroke volume (SV), shunt ratio (Qp:Qs), right ventricular outflow tract (RVOT) size, and right ventricular systolic pressure at rest (RVSPr). Doppler echocardiography was repeated at peak exercise to measure right ventricular systolic pressure during exercise (RVSPex). RESULTS Resting echocardiography revealed that RVOT was larger (21+/-4 vs 35+/-8 mm, mean+/-SD; p=0.0009) and RVSPr tended to be higher (17+/-8 vs 31+/-8 mm Hg; p=0.08) in ASD; however, left ventricular SV was not different (64+/-23 vs 58+/-23 mL; p>0.05), compared with control subjects. Despite normal resting left ventricular function, ASD patients had a significant reduction in maximum oxygen uptake (VO2max) (22.9+/-5.4 vs 17.3+/-4.2 mL/kg/min; p=0.005). RVSPex was higher (19+/-8 vs 51+/-10 mm Hg; p=0.001) and the mean RVSP-VO2 slope (1+/-2 vs 18+/-3 mm Hg/L/min; p=0.003) and intercept (17+/-4 vs 27+/-4 mm Hg; p=0.05) were higher in the ASD group. VO2max correlated inversely with both RVSPr (r=-0.69; p=0.007) and RVSPex (r=-0.67; p=0.01). CONCLUSION These findings suggest that adults with ASD have reduced exercise performance, which may be associated with an abnormal increase in pulmonary artery pressure during exercise.
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Affiliation(s)
- D A Oelberg
- Department of Internal Medicine, Sir Mortimer B. Davis-Jewish General Hospital and McGill University, Montreal, Canada
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17
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Abstract
Unsuspected intracardiac shunts can be a cause of acute deterioration in critically ill patients. Shunts can be acquired or congenital conditions that become symptomatic only with changed physiologic conditions. Transesophageal echocardiography is an excellent tool for the diagnosis of intracardiac shunts.
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Affiliation(s)
- A Nacht
- Department of Anesthesiology, New York University Medical Center, New York, New York, USA
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18
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Evans N, Iyer P. Incompetence of the foramen ovale in preterm infants supported by mechanical ventilation. The journal The Journal of Pediatrics 1994. [DOI: 10.1016/s0022-3476(06)80184-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Simmers TA, Sobotka M, Rothuis E, Delemarre BJ. Doppler echocardiographic evaluation of left ventricular diastolic function after surgical correction of atrial septal defect during childhood. Pediatr Cardiol 1994; 15:225-8. [PMID: 7997426 DOI: 10.1007/bf00795731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Transmitral flow was studied using Doppler echocardiography with the A/E ratio as a parameter of left ventricular diastolic function in 21 patients (ages 2.5-30.0 years) who had undergone early surgical correction of an isolated secundum type atrial septal defect (ASD) compared to a healthy cohort of 21 subjects. Pre- and postoperative M-mode recordings were compared in 12 of the 21 patients to evaluate the effect of operation on interventricular septal motion (IVS) and left ventricular (LV) and right ventricular (RV) end-diastolic diameter ratio (LVDD/RVDD) as parameters of right ventricular volume overload. No significant difference in A/E ratio was found between the patient and control groups. IVS was shown to normalize in 11 of 12 patients postoperatively and to improve from paradox to flattened in 1 of 12. LVDD/RVDD increased from 1.26 +/- 0.31 to 2.10 +/- 0.51 (p = 0.0008), with no significant difference remaining between the control and patient groups postoperatively. These findings support the conclusion that an intrinsic abnormality of the left ventricle is not responsible for its diastolic dysfunction in patients with ASD who develop left ventricular failure, thereby implicating an acquired abnormality. Mechanical sequelae of right ventricular volume overload were shown to normalize in all patients subsequent to operation in the present study, and therefore cannot be excluded as a cause of left ventricular failure in ASD.
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Affiliation(s)
- T A Simmers
- Heart-Lung Institute, University Hospital Utrecht, The Netherlands
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20
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Rivera JM, Vandervoort PM, Mele D, Siu S, Morris E, Weyman AE, Thomas JD. Quantification of tricuspid regurgitation by means of the proximal flow convergence method: a clinical study. Am Heart J 1994; 127:1354-62. [PMID: 8172065 DOI: 10.1016/0002-8703(94)90056-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Quantitation of valvular regurgitation remains an important goal in clinical cardiology. It has been described previously that with the use of color Doppler flow mapping, simple measurements of apparent jet size do not correlate closely with quantitative regurgitant indices. Recently the proximal flow convergence method has been proposed to quantify valvular regurgitation by analysis of the converging flow field proximal to a regurgitant lesion. Assuming hemispherical convergence, flow rate Q can be calculated as Q = 2 pi r2va, where va is the aliasing velocity at a distance r from the orifice. For maximal accuracy, previously validated correction factors must be used to account for the flattening effect of the isovelocity contours close to the orifice and for the actual sector angle subtended by the valve leaflets (alpha), to yield a flow rate formula Q = 2 pi r2va.(vp/vp - va).(alpha/180), where vp is the orifice velocity obtained by continuous wave Doppler. In 45 patients (35 in sinus rhythm, 10 with atrial fibrillation) with tricuspid regurgitation, regurgitant stroke volume, regurgitant flow rate, and regurgitant fraction were calculated using the proximal flow convergence method and were compared with values obtained by the Doppler two-dimensional echocardiographic method. Regurgitant stroke volumes (SV) calculated by the proximal flow convergence method correlated very closely with values obtained by the Doppler two-dimensional method with r = 0.95 (y = 0.94x + 0.99) and delta SV = -0.3 +/- 5.2 cm3. Regurgitant flow rates (Q) calculated by both methods showed a similar correlation: r = 0.96 (y = 0.97x + 45) and delta Q = 1.6 +/- 429 cm3/min.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- J M Rivera
- Noninvasive Cardiac Laboratory, Massachusetts General Hospital, Boston
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21
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22
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Grayburn PA. Southwestern Internal Medicine Conference: clinical applications of transesophageal echocardiography. Am J Med Sci 1994; 307:151-61. [PMID: 8141142 DOI: 10.1097/00000441-199402000-00015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Transesophageal echocardiography has emerged recently as a powerful cardiac imaging tool. The strengths and limitations of transesophageal echocardiography are reviewed. The clinical use of transesophageal echocardiography in aortic dissection, endocarditis, mitral valve disease, prosthetic heart valves, stroke, and miscellaneous other conditions is discussed.
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Affiliation(s)
- P A Grayburn
- Department of Internal Medicine, University of Texas Southwestern Medical School, Dallas
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23
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Rivera JM, Siu SC, Handschumacher MD, Lethor JP, Guerrero JL, Vlahakes GJ, Mitchell JD, Weyman AE, King ME, Levine RA. Three-dimensional reconstruction of ventricular septal defects: validation studies and in vivo feasibility. J Am Coll Cardiol 1994; 23:201-8. [PMID: 8277082 DOI: 10.1016/0735-1097(94)90521-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVES The purpose of this study was to demonstrate the feasibility of in vivo three-dimensional reconstruction of ventricular septal defects and to validate its quantitative accuracy for defect localization in excised hearts (used to permit comparison of three-dimensional and direct measurements without cardiac contraction). BACKGROUND Appreciating the three-dimensional spatial relations of ventricular septal defects could be useful in planning surgical and catheter approaches. Currently, however, echocardiography provides only two-dimensional views, requiring mental integration. A recently developed system automatically combines two-dimensional echocardiographic images with their spatial locations to produce a three-dimensional construct. METHODS Surgically created ventricular septal defects of varying size and location were imaged and reconstructed, along with the left and right ventricles, in the beating heart of six dogs to demonstrate the in vivo feasibility of producing a coherent image of the defect that portrays its relation to surrounding structures. Two additional gel-filled excised hearts with defects were completely reconstructed. Quantitative localization of the defects relative to other structures (ventricular apexes and valve insertions) was then validated for seven defects in excised hearts. The right septal margins of the exposed defects were also traced and compared with their reconstructed areas and circumferences. RESULTS The three-dimensional images provided coherent images and correct spatial appreciation of the defects (two inlet, two trabecular, one outlet and one membranous Gerbode in vivo; one inlet and one apical in excised hearts). The distances between defects and other structures in the excised hearts agreed well with direct measures (y = 1.05x-0.18, r = 0.98, SEE = 0.30 cm), as did reconstructed areas (y = 1.0x-0.23, r = 0.98, SEE = 0.21 cm2) and circumferences (y = 0.97x + 0.13, r = 0.97, SEE = 0.3 cm). CONCLUSIONS Three-dimensional reconstruction of ventricular septal defects can be achieved in the beating heart and provides an accurate appreciation of defect size and location that could be of value in planning interventions.
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Affiliation(s)
- J M Rivera
- Noninvasive Cardiac Laboratory, Massachusetts General Hospital, Boston 02114
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24
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Abstract
Echocardiography has become the method of choice for the assessment of patients with a known or suspected atrial septal defect. The majority of patients with defects can be identified by this method. In patients with inconclusive transthoracic studies, transesophageal echocardiography is useful for identification or exclusion of a defect. Echocardiography is useful for quantification of left-to-right shunting, identification of associated anomalies, and estimation of pulmonary pressure. Cardiac catheterization can be reserved for patients who require measurement of pulmonary vascular resistance, those who have a significant risk of coronary artery disease, and those with complex congenital heart disease.
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Affiliation(s)
- R N Staffen
- Cardiology Division, Department of Medicine, Pennsylvania State University College of Medicine, Hershey 17033
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25
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Waggoner AD, Dávila-Román VG, Hopkins WE, Pérez JE, Barzilai B. Comparison of color flow imaging and peripheral venous saline contrast during transesophageal echocardiography to evaluate right-to-left shunt at the atrial level. Echocardiography 1993; 10:59-66. [PMID: 10148116 DOI: 10.1111/j.1540-8175.1993.tb00011.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Intravenous injections of agitated saline (contrast) are used to identify right-to-left atrial shunt during transesophageal echocardiography (TEE). Color flow imaging (CFI) with TEE can be used to detect left-to-right atrial shunt but its application to detect right-to-left shunt is not known. We performed CFI and contrast during TEE in 72 patients for detection of right-to-left shunt. Frame-by-frame review of CFI demonstrated discrete laminar jets of the left side of the atrial septum at the lower or upper margin of the fossa ovalis (FO) in 41 (57%) of 72; only 22 had positive contrast. Timing of shunts was late diastolic or early systolic and not related to pulmonary venous inflow. The length of the FO at end-systole was greater in those with positive CFI compared to negative CFI (13.5 +/- 5 vs 11 +/- 4 mm, P = 0.02). CFI was positive for right-to-left shunt in ten of 14 with atrial septal aneurysms. Contrast was positive for right-to-left shunt in 29 (40%) of 72; all but six had positive CFI. The degree of left atrial opacification was minimal in 19 and moderate to severe in ten. FO size was greater in positive versus negative contrast (14 +/- 4 vs 11 +/- 5 mm, P = 0.02). Contrast was positive for shunt in ten of 14 with septal aneurysms. Thus, right-to-left atrial shunt more often occurs with increased FO size and septal aneurysms.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- A D Waggoner
- Cardiovascular Division, Washington University School of Medicine, St. Louis, MO 63110
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26
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Hausmann D, Daniel WG, Mügge A, Ziemer G, Pearlman AS. Value of transesophageal color Doppler echocardiography for detection of different types of atrial septal defect in adults. J Am Soc Echocardiogr 1992; 5:481-8. [PMID: 1389216 DOI: 10.1016/s0894-7317(14)80039-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In 121 adults, the value of transthoracic and transesophageal color Doppler echocardiography for detection of different types of atrial septal defect (ASD) or of partial anomalous pulmonary venous return was analyzed. The 121 patients had a total of 129 defects with left-to-right atrial shunting (including eight patients with two types of defects). All of six cases with primum-type ASD were diagnosed correctly by both echocardiographic methods. Ninety-seven patients showed a secundum-type ASD during transesophageal echocardiography: by transthoracic echocardiography, only eight (20%) of the 40 small defects (diameter < 5 mm) were detected as compared with 15 (83%) of the 18 defects with a diameter of 5 to 10 mm and all 39 defects with a diameter > 10 mm. A sinus venosus--type ASD was evident by transesophageal echocardiography in 11 patients, of which only one (9%) was demonstrated by the transthoracic approach. Partial anomalous pulmonary venous return was seen by transesophageal echocardiography in 13 patients but missed in two other patients in whom anomalous pulmonary venous return was subsequently identified by surgery (both with anomalous return of the upper right pulmonary vein into the superior vena cava). By use of the transthoracic technique, partial anomalous venous return was detected in only two cases, both of which had "scimitar syndrome." Compared with transthoracic echocardiography, the transesophageal approach is clearly superior in the detection of small secundum-type ASD, sinus venosus--type ASD, and partial anomalous pulmonary venous return.
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Affiliation(s)
- D Hausmann
- Department of Internal Medicine, Hannover Medical School, Germany
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27
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Boehrer JD, Lange RA, Willard JE, Grayburn PA, Hillis LD. Advantages and limitations of methods to detect, localize, and quantitate intracardiac left-to-right shunting. Am Heart J 1992; 124:448-55. [PMID: 1636588 DOI: 10.1016/0002-8703(92)90612-y] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- J D Boehrer
- Department of Internal Medicine (Cardiovascular Division), University of Texas Southwestern Medical Center, Dallas 75235
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28
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Lin SL, Ting CT, Hsu TL, Chen CH, Chang MS, Chen CY, Chiang BN. Transesophageal echocardiographic detection of atrial septal defect in adults. Am J Cardiol 1992; 69:280-2. [PMID: 1731476 DOI: 10.1016/0002-9149(92)91323-v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- S L Lin
- Department of Internal Medicine, Veterans General Hospital-Taipei, Taiwan, Republic of China
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29
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Waggoner AD, Davila-Roman VG, Barzilai B, Perez JE. Contrast Two-Dimensional Echocardiography Provides Clinical Information Not Available with Color Flow Imaging. JOURNAL OF DIAGNOSTIC MEDICAL SONOGRAPHY 1992. [DOI: 10.1177/875647939200800102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Contrast two-dimensional (2D) echocardiography using peripheral venous injections of agitated saline provides useful clinical information not available with standard 2D Doppler and color flow imaging techniques. Intraor extracardiac right-to-left shunting in patients with atrial or ventricular septal defects and patent ductus arteriosus can be identified in this manner, and the relative degree of shunt can be assessed. Other conditions, such as left superior vena cava to the coronary sinus or pulmonary arteriovenous malformation, are accurately detected only when contrast 2D echo is incorporated during the noninvasive examination. Recent work has also demonstrated that venous injections of agitated saline can be used to enhance continuous wave Doppler recordings of tricuspid regurgitant jet envelopes when poorly defined, or with color flow imaging to characterize the jet area. Twodimensional visualization of the needle placed in the pericardial sac for drainage of pericardial effusion may be difficult. Injection of agitated saline through the needle may be used to verify proper location in the pericardial sac and not in the ventricular chambers. The role of contrast 2D echocardiography with new agents has been used to assess myocardial perfusion. All of these applications of contrast echo contribute to standard echocardiographic techniques to provide a better characterization of flow dynamics not seen with color flow imaging.
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Affiliation(s)
- Alan D. Waggoner
- Cardiovascular Division, Washington University School of Medicine, 660 South Euclid, Box 8086 St. Louis, MO 63110
| | | | | | - Julio E. Perez
- Cardiovascular Division, Washington University School of Medicine, St. Louis, Missouri
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30
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Chen CH, Lin SL, Yin WH, Liou JY, Hsu TL, Ting CT, Chang MS, Chiang BN. Transesophageal color Doppler flow mapping of iatrogenic left-to-right interatrial shunting after percutaneous transluminal mitral valvotomy. Echocardiography 1991; 8:649-56. [PMID: 10149276 DOI: 10.1111/j.1540-8175.1991.tb01027.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Characteristics of transesophageal color Doppler flow mapping of iatrogenic left-to-right interatrial shunts were assessed in 58 patients, 1 to 994 days after percutaneous transluminal mitral valvotomy. Transesophageal color Doppler flow mapping detected 22 cases of interatrial shunt whereas transthoracic two-dimensional echocardiography visualized only five interatrial septal defects. Five types of color Doppler flow patterns of interatrial shunts were found: type 1, a bluish jet passing through the interatrial septum into the right atrium with a small bluish proximal flow in the left atrium (50%); type 2, a bluish jet passing through the interatrial septum into the right atrium without a proximal flow (13.6%); type 3, a predominant bluish proximal flow in the left atrium passing through the interatrial septum with minimal flow entering into the right atrium (18.2%); type 4, an "en face" bluish jet in the right atrium (4.5%); and type 5, a "wall jet" with proximal flow adhering to and entering into the interatrial septum (13.6%). Oximetry demonstrated increased pulmonary-to-systemic flow ratio (range 1.07 to 3.32) in 11 patients (50%), which was significantly correlated with the maximal jet area derived from color Doppler flow mapping (r = 0.80, P = 0.001). Thus, transesophageal color Doppler flow mapping is useful in detection of left-to-right interatrial shunts after percutaneous transluminal mitral valvotomy, and recognition of the variable types of color flow mapping may further help identify these atypical interatrial shunts.
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Affiliation(s)
- C H Chen
- Department of Medicine, Veterans General Hospital-Taipei and National Yang Ming Medical College, Taiwan, Republic of China
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31
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Faletra F, Scarpini S, Moreo A, Ciliberto GR, Austoni P, Donatelli F, Gordini V. Color Doppler echocardiographic assessment of atrial septal defect size: correlation with surgical measurements. J Am Soc Echocardiogr 1991; 4:429-34. [PMID: 1742029 DOI: 10.1016/s0894-7317(14)80375-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In patients with atrial septal defect (ASD), color flow Doppler echocardiography provides visualization of the transseptal jet, the maximal dimension of which can be assumed to correspond to the maximal dimension of the true orifice. To test whether color flow Doppler echocardiography can provide an alternative method for measurement of ASD size, we studied 63 consecutive patients with echocardiographic evidence of ASD. In 48 patients the maximal dimension of the jet was measured in the parasternal, apical, or subcostal four-chamber view or in the parasternal short-axis view. In the remaining 15 patients transesophageal echocardiography was performed because of transthoracic views were inadequate. The transesophageal studies also measured, from two-dimensional images, the maximal transverse discontinuity in the atrial septum. All patients underwent surgical repair, during which the surgeon directly measured the maximal dimension of ASD. Linear regression equations were performed to compare transthoracic and transesophageal dimensions to those measured at operation. Correlation coefficients were as follows for transthoracic versus surgical measurements: r = 0.745, standard error = 4.35, p less than 0.001. Transesophageal measurements derived from both two-dimensional images and echocardiographic jet width showed similar excellent correlation with surgical measurements (n = 0.91, standard error = 4.33, p less than 0.001; and r = 0.919, standard error = 4.42, p less than 0.001, respectively). We conclude that ASD size derived from color flow Doppler echocardiography shows a good correlation with the anatomic maximal dimension observed at operation. Both transesophageal color flow Doppler echocardiography of jet width and direct surgical measurement of the defect provide an accurate estimation of ASD size.
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Affiliation(s)
- F Faletra
- Department of Cardiology, Ospedale Nigurda Ca'Granda, Milan, Italy
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32
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Kawahara T, Yamagishi M, Seo H, Mitani M, Nakatani S, Beppu S, Nagata S, Miyatake K. Application of Doppler color flow imaging to determine valve area in mitral stenosis. J Am Coll Cardiol 1991; 18:85-92. [PMID: 1843179 DOI: 10.1016/s0735-1097(10)80223-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This study was undertaken to examine whether Doppler color flow imaging could accurately estimate the valve area in mitral stenosis. Doppler color flow assessments were performed in both an in vitro model and in 30 patients with mitral stenosis undergoing cardiac catheterization. In the experimental Doppler study using a circuit model, color jet width correlated well with actual orifice diameter (r = 0.99). In the clinical Doppler study, the mitral valve orifice was assumed to be elliptic and the mitral valve area was calculated from the following equation: (pi/4) (a x b), where a = color jet width at the mitral valve orifice in the apical long-axis view (short diameter) and b = the width in the 90 degrees rotated view (long diameter). Mitral valve area was also determined by two-dimensional echocardiography and the pressure half-time method, and the results for all three noninvasive methods were compared with those obtained at cardiac catheterization. By Doppler color flow imaging, mitral valve area could be determined in all patients and there was a significant correlation between the Doppler jet and catheterization estimates of mitral valve area (r = 0.93). Valve area determined by two-dimensional echocardiography correlated well with catheterization measurements in 26 patients (r = 0.84). However, the area could not be determined in 4 (13%) of the 30 patients because of technical problems. Although there was a fair correlation between the valve area determined by the pressure half-time method and catheterization (r = 0.79), this method tended to overestimate valve area in patients with aortic regurgitation.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- T Kawahara
- Cardiology Division of Medicine, National Cardiovascular Center, Osaka, Japan
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33
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Brickner ME, Grayburn PA, Fadel B, Carry MM, Eichhorn EJ, Lange RA, Taylor AL. Detection of patent foramen ovale by Doppler color flow mapping in patients undergoing cardiac catheterization. Am J Cardiol 1991; 68:125-9. [PMID: 2058548 DOI: 10.1016/0002-9149(91)90727-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- M E Brickner
- Department of Internal Medicine (Cardiology Division), University of Texas Southwestern Medical School, Dallas
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34
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Nakatani S, Nagata S, Beppu S, Ishikura F, Tamai J, Yamagishi M, Ohmori F, Kimura K, Takamiya M, Miyatake K. Acute reduction of mitral valve area after percutaneous balloon mitral valvuloplasty: assessment with Doppler continuity equation method. Am Heart J 1991; 121:770-5. [PMID: 2000743 DOI: 10.1016/0002-8703(91)90187-m] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Mitral valve areas before and after balloon mitral valvuloplasty were serially determined by the Doppler continuity equation method in 16 patients. Ultrasound examinations were performed before and immediately after balloon inflation and 24 hours, 1 week, and 1 month after valvuloplasty. Mitral valve area determined by the Doppler continuity equation method correlated well with that determined at catheterization by the Gorlin formula, not only before but also immediately after balloon inflation (y = 0.87 x + 0.05, standard error of estimate = 0.22 cm2, r = 0.90). Serial calculation of mitral valve area by the Doppler continuity equation method showed a slight but significant decrease in the valve area at 24 hours after balloon mitral valvuloplasty but no change after that. We conclude that the Doppler continuity equation method provides an accurate estimation of mitral valve area before and even after balloon valvuloplasty. Mitral valve area dilated by balloon inflation is decreased slightly within 24 hours after the procedure, which corroborates valve stretch as one mechanism for increasing mitral valve area with balloon valvuloplasty. Estimation of mitral valve area immediately after balloon mitral valvuloplasty may overestimate the long-term efficacy of the procedure.
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Affiliation(s)
- S Nakatani
- National Cardiovascular Center, Research Institute and Hospital, Osaka, Japan
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35
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Mehta RH, Helmcke F, Nanda NC, Pinheiro L, Samdarshi TE, Shah VK. Uses and limitations of transthoracic echocardiography in the assessment of atrial septal defect in the adult. Am J Cardiol 1991; 67:288-94. [PMID: 1990793 DOI: 10.1016/0002-9149(91)90561-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Two-dimensional and color Doppler echocardiography accurately detected the presence of an atrial septal defect (ASD) in 47 of 50 adults (mean age 40 years) confirmed by surgery or cardiac catheterization, or both. It correctly categorized all patients with ostium secundum and ostium primum ASD but misdiagnosed 3 of 5 patients with surgically proven sinus venosus ASD. The shunt flow volume across the ASD was calculated with the standard Doppler equation, and assuming the ASD to be circular correlated with shunt flow volume obtained by cardiac catheterization (r = 0.74). The maximum width of the color flow signals moving across the ASD was taken as its diameter. Mean flow velocity was determined either by placing a pulsed Doppler sample volume parallel to the flow across the ASD as visualized by color Doppler or by color M-mode examination, which allowed determination of flow velocities using a previously validated method that incorporates a computer analysis of pixel color intensity. The pulmonary to systemic blood flow ratio obtained by color-guided conventional Doppler interrogation of the left and right ventricular outflow tracts correlated poorly with cardiac catheterization results (r = 0.38). In patients with associated tricuspid regurgitation, the peak systolic pulmonary artery pressure obtained by color Doppler-guided continuous-wave Doppler correlated well with that obtained at cardiac catheterization (r = 0.89). The maximum color Doppler jet width of the flow across the ASD poorly correlated with ASD size estimated at surgery (r = 0.50).
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Affiliation(s)
- R H Mehta
- Department of Medicine, University of Alabama, Birmingham 35294
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36
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Mehta RH, Helmcke F, Nanda NC, Hsiung M, Pacifico AD, Hsu TL. Transesophageal Doppler color flow mapping assessment of atrial septal defect. J Am Coll Cardiol 1990; 16:1010-6. [PMID: 2212350 DOI: 10.1016/s0735-1097(10)80355-9] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Transesophageal Doppler color flow imaging was performed in 19 adult patients (mean age 35 years) with an atrial septal defect demonstrated by cardiac catheterization or at surgery, or both. The transesophageal study correctly identified and classified 19 of 19 shunts in contrast to 16 of 18 shunts identified by the transthoracic approach. The area of the atrial septal defect was calculated by assuming it to be circular and taking the maximal Doppler color flow jet width at the defect site as its diameter. The pulsed Doppler sample volume was placed parallel to the shunt flow direction at the defect site to obtain the mean velocity and flow duration. From these values, the shunt volume was calculated as a product of the defect area, mean velocity, flow duration and heart rate. The calculated shunt flow volume obtained by transesophageal study showed a good correlation with shunt flow volume (r = 0.91, p less than 0.001) and pulmonary to systemic blood flow ratio (r = 0.84, p less than 0.001) obtained at cardiac catheterization. The size of the defect by transesophageal Doppler color flow mapping correlated fairly well with the size estimated at surgery (r = 0.73, p = 0.004). It is concluded that transesophageal Doppler color flow imaging is useful in the detection and classification of atrial septal defects and in the assessment of shunt volumes.
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Affiliation(s)
- R H Mehta
- Department of Medicine, University of Alabama, Birmingham
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37
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Rainer RS, Wanat FE, Nanda NC, Chang LK. Multiple secundum type atrial septal defects: identification by transthoracic color Doppler echocardiography. Echocardiography 1990; 7:567-9. [PMID: 10149237 DOI: 10.1111/j.1540-8175.1990.tb00402.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
This case illustrates the utility of two-dimensional color Doppler echocardiography in detecting and localizing multiple atrial septal defects not consistently demonstrated by standard two-dimensional echocardiography.
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Affiliation(s)
- R S Rainer
- Department of Medicine, University of Alabama at Birmingham, 35294
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38
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Morimoto K, Matsuzaki M, Tohma Y, Ono S, Tanaka N, Michishige H, Murata K, Anno Y, Kusukawa R. Diagnosis and quantitative evaluation of secundum-type atrial septal defect by transesophageal Doppler echocardiography. Am J Cardiol 1990; 66:85-91. [PMID: 2360537 DOI: 10.1016/0002-9149(90)90741-i] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Transesophageal echocardiography (horizontal sector scan) was performed in 11 patients with secundum atrial septal defect (ASD). In all 11 patients, transesophageal echocardiography presented the definite visualization of the defect and a clear laminar shunt flow that showed its 2 peaks in late systole and late diastole. We estimated the size of ASD and a shunt volume across the defect by using transesophageal echocardiography. The defect size determined by transesophageal echocardiography was correlated with the surgical measurement (horizontal width, r = 0.92, p less than 0.001; vertical length, r = 0.85, p less than 0.01). A significant high correlation was shown between the shunt volume measured by transesophageal echocardiography and that by Fick's method (r = 0.87, p less than 0.01). There was no significant correlation between the pulmonary to systemic flow volume (ratio) and the mean shunt flow velocity across ASD, although a high linear correlation was observed between the pulmonary to systemic flow ratio and the defect size in horizontal direction (r = 0.82, p less than 0.01). Transesophageal echocardiography used for diagnosis and quantitative evaluation of ASD could be performed easily and satisfactorily within 10 minutes. Thus, transesophageal echocardiography is a useful method in evaluation of the defect size and the shunt flow volume of ASD. The mean shunt flow velocity was not a reliable index for estimating the shunt flow volume. The defect size might be a valuable determinant of left-to-right shunt volume in ASD.
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Affiliation(s)
- K Morimoto
- Department of Internal Medicine, Yamaguchi University School of Medicine, Ube, Japan
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39
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40
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Veyrat C, Legeais S, Sainte-Beuve D, Kalmanson D. Color and pulsed Doppler studies of atrial flow dynamics in normals and adult patients with uncomplicated atrial septal defects. INTERNATIONAL JOURNAL OF CARDIAC IMAGING 1990; 6:1-9. [PMID: 2286768 DOI: 10.1007/bf01798427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Left and right atrial flow dynamics were compared by means of color and pulsed Doppler in order to study whether color Doppler could reliably provide differentiation between normals [15] and patients without atrial shunt at catheterization [12], vs patients with confirmed atrial septal defect [12]. The procedure consisted of sequential analysis of colored images throughout the cardiac cycle using an apical approach. In addition pulsed Doppler indices were calculated from both annular traces, relating diastolic early (E) and late (A) filling waves at each annulus (E/A); E and A waves were also summed (E + A), and the sum was related between both annuli (Tricuspid/Mitral ratio). Sequential analysis had a 100% sensitivity and specificity for the diagnosis of atrial septal defect, showing an asymmetrical pattern with predominant images in the right atrium, from the 2nd half of systole till End-diastole, vs the symmetrical 'Horseshoe' pattern found over both atria for control subjects. It avoided diagnostic errors due to overriding septal images in systole in 44% of controls. There also was a significant increase of the Tricuspid/Mitral ratios, (for duration and velocity time integral of waves) in patients with atrial septal defect. The correlation coefficient between ratios and values of the Pulmonary/Systemic flow ratio invasively calculated for 10 patients was respectively 0.6 and 0.7 (p less than 0.01). Sequential analysis of colored images appears highly reliable for the diagnosis of atrial septal defect; anomalies of ratios, although of moderate value for predicting shunt magnitude, substantiate the inequality of atrial fillings.
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Affiliation(s)
- C Veyrat
- Chargé de recherches au CNRS, Fondation A. de Rothschild, Paris, France
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41
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Kronzon I, Tunick PA, Goldfarb A, Freedberg RS, Chinitz L, Slater J, Schwinger ME, Gindea AJ, Glassman E, Daniel WG. Echocardiographic and hemodynamic characteristics of atrial septal defects created by percutaneous valvuloplasty. J Am Soc Echocardiogr 1990; 3:64-71. [PMID: 2310594 DOI: 10.1016/s0894-7317(14)80300-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Twenty-nine patients were studied by pulsed, continuous wave, and color Doppler before and after percutaneous transseptal valvuloplasty. New atrial septal defects were detected in 14 patients, and the patients were monitored for up to 320 days after the procedure. The diameter of the defect, best evaluated by the transesophageal approach, was 3 to 15 mm. A narrow, high velocity (1.4 to 3.1 meters per second) left-to-right shunt jet was detected in 13 of 14 patients. The shunt jet was continuous in nine of 14 patients, late systolic-holodiastolic in four patients, and bidirectional in one patient. Cardiac catheterization in nine patients confirmed the Doppler findings and demonstrated a peak pressure gradient of 10 to 32 mm Hg between the left and right atria. Oximetry revealed a calculated pulmonary to systemic flow ratio ranging from 2.3:1 in the patient with the largest atrial septal defect by echocardiography to 1:1 (no oxygen saturation step-up) in the patient with the smallest atrial septal defect. In the three patients who underwent cardiac surgery, the operative findings confirmed those of echocardiography. We concluded that atrial septal defects are common after transseptal valvuloplasty. Usually, their relatively small size and the underlying valvular disease that produces high left atrial pressure are responsible for the high pressure gradient between the left and right atria. This results in the high velocity and continuous shunt jet detected by Doppler echocardiography.
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Affiliation(s)
- I Kronzon
- Department of Medicine, New York University Medical Center, New York
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42
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Oberhoffer R, Lang D. Diagnostic criteria of interatrial defects: a single gate pulsed Doppler echocardiographic study. Int J Cardiol 1989; 25:167-71. [PMID: 2807604 DOI: 10.1016/0167-5273(89)90103-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Functional closure of the oval foramen occurs during the first days of life. Nevertheless, range-gated pulsed Doppler echocardiography shows a transatrial flow pattern in many newborns. In this situation, cross-sectional echocardiography often fails in differentiating the valve-incompetent oval foramen from an atrial septal defect. In order to establish Dopplersonographic criteria for these diagnoses, we performed a prospective echocardiographic and pulsed Doppler study in 34 newborns with valve-incompetent oval foramen and in 30 children with atrial septal defect. We could not find any significant difference of flow pattern in either group, although a so-called "flap" signal could be demonstrated in 73.5% of the patients with an oval foramen, but in only 23% of the children with atrial septal defect. We suggest this feature reflects a distinct movement of the flap of oval foramen which passively follows the different interatrial pressure-flow dynamics. Nevertheless, this sign was insufficiently constant to prove presence of an oval foramen and not that specific to exclude an atrial septal defect. We conclude, therefore, that the precise nature of interatrial defects cannot be differentiated by single gate pulsed Doppler echocardiography.
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Affiliation(s)
- R Oberhoffer
- Universitätskinderklinik, Sektion Kinderkardiologie, Ulm, F.R.G
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