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A Cohort Analysis of Patients with Stage I Twin-to-Twin Transfusion Syndrome from a Major Referral Hospital in Northern China. MATERNAL-FETAL MEDICINE 2019. [DOI: 10.1097/fm9.0000000000000021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Loh M, Bhatia A, Tan KL, Thia E, Yeo GSH. Outcomes following selective fetoscopic laser ablation for twin-to-twin transfusion syndrome: a single-centre experience. Singapore Med J 2019; 61:523-531. [PMID: 31489429 DOI: 10.11622/smedj.2019107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Fetoscopic laser photocoagulation (FLP), a treatment option for twin-to-twin transfusion syndrome (TTTS) in monochorionic twin pregnancies, is currently the treatment of choice at our centre. We previously reported on our experience of FLP from June 2011 to March 2014. This paper audits our fetal surgery performance since then. METHODS 15 consecutive patients who underwent FLP for Stage II-III TTTS before 26 weeks of gestation from June 2011 to January 2017 were retrospectively reviewed, consisting of five cases from our initial experience and ten subsequent cases. Perioperative, perinatal and neonatal outcomes were analysed. RESULTS Of 15 pregnancies, 10 (66.7%) and 5 (33.3%) were for Stage II and III TTTS respectively, with FLP performed at an earlier Quintero stage in the later cohort. Overall mean gestational ages at presentation, laser and delivery were comparable between the cohorts at 19.7 (15.4-24.3) weeks, 20.3 (16.3-25.0) weeks and 31.2 (27.6-37.0) weeks, respectively. 2 (13.3%) cases had intra-amniotic bleeding and 1 (6.7%) had iatrogenic septostomy. 1 (6.7%) case had persistent TTTS requiring repeat FLP, and another (6.7%) had preterm premature rupture of membranes at seven weeks post procedure. The overall perinatal survival rate was 21 (75.0%) out of 28 infants. One mother underwent termination of pregnancy for social reasons at 1.4 weeks post procedure. Double survival occurred in 8 (57.1%) out of 14 pregnancies, while 13 (92.9%) had at least one survivor. CONCLUSION FLP requires a highly specialised team and tertiary neonatal facility. Continual training improves maternal and perinatal outcomes, ensuring comparable standards with international centres.
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Affiliation(s)
- Michelle Loh
- Department of Obstetrics and Gynaecology, KK Women's and Children's Hospital, Singapore
| | - Anju Bhatia
- Department of Maternal Fetal Medicine, KK Women's and Children's Hospital, Singapore
| | - Kai Lit Tan
- Department of Maternal Fetal Medicine, KK Women's and Children's Hospital, Singapore
| | - Edwin Thia
- Department of Maternal Fetal Medicine, KK Women's and Children's Hospital, Singapore
| | - George Seow Heong Yeo
- Department of Maternal Fetal Medicine, KK Women's and Children's Hospital, Singapore
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Donepudi R, Akkermans J, Mann L, Klumper FJ, Middeldorp JM, Lopriore E, Moise KJ, Bebbington M, Johnson A, Oepkes D, Papanna R. Impact of cannula size on recurrent twin-twin transfusion syndrome and twin anemia-polycythemia sequence after fetoscopic laser surgery. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2018; 52:744-749. [PMID: 28925589 DOI: 10.1002/uog.18904] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 07/28/2017] [Accepted: 09/08/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE The optimal outcome after fetoscopic laser surgery (FLS) for twin-twin transfusion syndrome (TTTS) depends on the successful ablation of all placental anastomoses. The objective of this study was to determine the incidence of and risk factors for recurrent TTTS (rTTTS) or twin anemia-polycythemia sequence (TAPS) after FLS, focusing on the impact of cannula diameter. METHODS This was a secondary analysis of data collected prospectively at two centers from 666 consecutive patients undergoing FLS for TTTS. The main outcomes were rTTTS and TAPS following FLS. Variables assessed included gestational age at intervention, stage of disease, recipient maximum vertical pocket, anterior placenta, number of anastomoses ablated, cannula diameter/operative scopes and use of the Solomon technique. Cannula diameter and corresponding scopes used were as follows: 8 Fr and 1.3 mm/0°; 9 Fr and 2.7 mm/0°; 10 Fr and 3 mm/0°; or 12 Fr and 3.3-3.7 mm/30-70°. Cannula diameter was used as a surrogate for scopes during analysis. Multivariate logistic regression analysis was performed to identify risk factors associated with rTTTS or TAPS after FLS; 'center' was considered an independent variable to account for variations in practice. In a nested cohort of pregnancies in which both fetuses survived, placental dye injection was performed in 315 placentae. Multivariate logistic regression analysis was performed to evaluate variables associated with the presence of residual anastomoses. RESULTS rTTTS or TAPS occurred in 61 (9%) cases following FLS (rTTTS in eight (1%) and TAPS in 53 (8%)). Factors associated significantly with the risk of rTTTS/TAPS on multivariate analysis were cannula diameter (when an 8-Fr, 9-Fr, 10-Fr or 12-Fr cannula was used, there was rTTTS/TAPS in 24%, 13%, 2% or 0.8% of cases, respectively (P < 0.001)) and use of the Solomon technique (rTTTS/TAPS occurred in 4.2% of those in which it was used vs 18.1% in those in which it was not (P < 0.001)). Only use of the Solomon technique was associated significantly with no residual anastomoses found after delivery. CONCLUSIONS Following FLS for TTTS, a lower incidence of rTTTS/TAPS was seen when the Solomon technique was used, as well as when a 10-Fr or 12-Fr cannula was used. A lower complication rate may be due to the use of a scope with better optics during placental mapping. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- R Donepudi
- The Fetal Center, Children's Memorial Hermann Hospital, Department of Obstetrics and Gynecology, McGovern Medical School, University of Texas Health Science Center at Houston, TX, USA
| | - J Akkermans
- Department of Obstetrics, Division of Fetal Therapy, Leiden University Medical Center, Leiden, The Netherlands
| | - L Mann
- The Fetal Center, Children's Memorial Hermann Hospital, Department of Obstetrics and Gynecology, McGovern Medical School, University of Texas Health Science Center at Houston, TX, USA
| | - F J Klumper
- Department of Obstetrics, Division of Fetal Therapy, Leiden University Medical Center, Leiden, The Netherlands
| | - J M Middeldorp
- Department of Obstetrics, Division of Fetal Therapy, Leiden University Medical Center, Leiden, The Netherlands
| | - E Lopriore
- Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - K J Moise
- The Fetal Center, Children's Memorial Hermann Hospital, Department of Obstetrics and Gynecology, McGovern Medical School, University of Texas Health Science Center at Houston, TX, USA
| | - M Bebbington
- The Fetal Center, Children's Memorial Hermann Hospital, Department of Obstetrics and Gynecology, McGovern Medical School, University of Texas Health Science Center at Houston, TX, USA
| | - A Johnson
- The Fetal Center, Children's Memorial Hermann Hospital, Department of Obstetrics and Gynecology, McGovern Medical School, University of Texas Health Science Center at Houston, TX, USA
| | - D Oepkes
- Department of Obstetrics, Division of Fetal Therapy, Leiden University Medical Center, Leiden, The Netherlands
| | - R Papanna
- The Fetal Center, Children's Memorial Hermann Hospital, Department of Obstetrics and Gynecology, McGovern Medical School, University of Texas Health Science Center at Houston, TX, USA
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Bolch C, Fahey M, Reddihough D, Williams K, Reid S, Guzys A, Cole S, Edwards A, Fung A, Hodges R, Palma-Dias R, Teoh M, Walker S. Twin-to-twin transfusion syndrome neurodevelopmental follow-up study (neurodevelopmental outcomes for children whose twin-to-twin transfusion syndrome was treated with placental laser photocoagulation). BMC Pediatr 2018; 18:256. [PMID: 30068295 PMCID: PMC6090765 DOI: 10.1186/s12887-018-1230-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 07/19/2018] [Indexed: 11/10/2022] Open
Abstract
Background Twin-to-twin transfusion syndrome (TTTS) is a serious complication of 10–15% of twin or triplet pregnancies in which multiple fetuses share a single placenta. Communicating placental vessels allow one fetus (the donor) to pump blood to the other (the recipient). Mortality rates without intervention are high, approaching 100% in some series, with fetal deaths usually due to cardiac failure. Surgical correction using laser photocoagulation of communicating placental vessels was developed in the 1980s and refined in the 1990s. Since it was introduced in Victoria in 2006, laser surgery has been performed in approximately 120 pregnancies. Survival of one or more fetuses following laser surgery is currently > 90%, however the neurodevelopmental outcomes for survivors remain incompletely understood. Prior to laser therapy, at least one in five survivors of TTTS had serious adverse neurodevelopmental outcomes (usually cerebral palsy). Current estimates of neurological impairment among survivors following laser surgery vary from 4 to 31% and long-term follow-up data are limited. Methods This paper describes the methodology for a retrospective cohort study in which children aged 24 months and over (corrected for prematurity), who were treated with laser placental photocoagulation for TTTS at Monash Health in Victoria, Australia, will undergo comprehensive neurodevelopmental assessment by a multidisciplinary team. Evaluation will include parental completion of pre-assessment questionnaires of social and behavioural development, a standardised medical assessment by a developmental paediatrician or paediatric neurologist, and age-appropriate cognitive and academic, speech and fine and gross motor assessments by psychologists, speech and occupational therapists or physiotherapists. Assessments will be undertaken at the Murdoch Children’s Research Institute/Royal Children’s Hospital, at Monash Health or at another mutually agreed location. Results will be recorded in a secure online database which will facilitate future related research. Discussion This will be the first study to report and evaluate neurodevelopmental outcomes following laser surgery for twin-to-twin transfusion syndrome in Victoria, and will inform clinical practice regarding follow-up of children at risk of adverse outcomes. Electronic supplementary material The online version of this article (10.1186/s12887-018-1230-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christie Bolch
- Developmental Disability and Rehabilitation Research, Murdoch Children's Research Institute, Melbourne, Australia. .,Neurodevelopment and Disability, The Royal Children's Hospital, Melbourne, Australia.
| | - Michael Fahey
- Department of Paediatrics, Monash Health, Clayton, Australia.,Department of Paediatrics, Monash University, Clayton, Australia
| | - Dinah Reddihough
- Developmental Disability and Rehabilitation Research, Murdoch Children's Research Institute, Melbourne, Australia.,Neurodevelopment and Disability, The Royal Children's Hospital, Melbourne, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Australia
| | - Katrina Williams
- Developmental Disability and Rehabilitation Research, Murdoch Children's Research Institute, Melbourne, Australia.,Neurodevelopment and Disability, The Royal Children's Hospital, Melbourne, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Australia
| | - Susan Reid
- Developmental Disability and Rehabilitation Research, Murdoch Children's Research Institute, Melbourne, Australia.,Neurodevelopment and Disability, The Royal Children's Hospital, Melbourne, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Australia
| | - Angela Guzys
- Developmental Disability and Rehabilitation Research, Murdoch Children's Research Institute, Melbourne, Australia
| | - Stephen Cole
- Department of Maternity Services, Royal Women's Hospital, Melbourne, Australia
| | - Andrew Edwards
- Hudson Institute of Medical Research, Monash University, Clayton, VIC, Australia
| | - Alison Fung
- Department of Perinatal Medicine, Mercy Hospital for Women, Heidelberg, VIC, Australia
| | - Ryan Hodges
- Women's & Newborn Program, Monash Health, Clayton, VIC, Australia.,The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Australia
| | - Ricardo Palma-Dias
- Ultrasound Services, Royal Women's Hospital, Parkville, VIC, Australia.,Pregnancy Research Centre, Department of Maternal-Fetal Medicine, Royal Women's Hospital, Parkville, VIC, Australia.,Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, VIC, Australia
| | - Mark Teoh
- Fetal Diagnostic Unit, Monash Health, Clayton, VIC, Australia
| | - Susan Walker
- Department of Obstetrics and Gynaecology, Mercy Hospital for Women, Heidelberg, Australia.,Maternal Fetal Medicine, The University of Melbourne, Melbourne, Australia
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Hecher K, Gardiner HM, Diemert A, Bartmann P. Long-term outcomes for monochorionic twins after laser therapy in twin-to-twin transfusion syndrome. THE LANCET CHILD & ADOLESCENT HEALTH 2018; 2:525-535. [PMID: 30169324 DOI: 10.1016/s2352-4642(18)30127-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/09/2018] [Accepted: 04/03/2018] [Indexed: 12/28/2022]
Abstract
Twin-to-twin transfusion syndrome typically occurs in the second trimester in 10-15% of monochorionic twin pregnancies. Vascular anastomoses of monochorionic placentae are the underlying cause of the development of the syndrome. If a blood flow imbalance occurs, one fetus becomes the so-called donor twin and the other the recipient. If untreated, perinatal mortality is 80-90%. Fetoscopic laser coagulation of the vascular anastomoses destroys the cause of the syndrome and leads to dual twin survival rates of around 70% and more than 90% of pregnancies with at least one survivor. However, unequal placental sharing, intrauterine death, and severe prematurity are still limiting factors for further improvement of survival rates and decreases in long-term morbidity. Prematurity and neurodevelopmental impairment affect the donor and recipient twins, whereas cardiovascular failure and obstruction of the right ventricular outflow tract are typical complications of recipients, which can lead to long-term morbidity. In this Review, we summarise the literature on follow-up data for survivors of twin-to-twin-transfusion syndrome after laser therapy, including neurodevelopmental outcomes, cardiovascular outcomes, growth, renal function, and ischaemic events, as well as the potential effects of intrauterine programming on later life.
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Affiliation(s)
- Kurt Hecher
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Helena M Gardiner
- Fetal Center at Children's Memorial Herman Hospital, McGovern Medical School at UTHealth, University of Texas Health Sciences Center, Houston, TX, USA
| | - Anke Diemert
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Peter Bartmann
- Children's Hospital, University Hospital Bonn, Bonn, Germany
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Djaafri F, Stirnemann J, Mediouni I, Colmant C, Ville Y. Twin-twin transfusion syndrome - What we have learned from clinical trials. Semin Fetal Neonatal Med 2017; 22:367-375. [PMID: 29122542 DOI: 10.1016/j.siny.2017.08.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Monochorionic twin pregnancies are at increased risk for adverse outcome compared to dichorionic twin pregnancies and singletons. Monochorionic-specific complications include twin-twin transfusion syndrome (TTTS), twin anemia-polycythemia sequence, single intrauterine fetal demise and its consequences on the co-twin, and selective intrauterine growth restriction. Whereas the natural history of monochorionic-specific complications carries a high risk of fetal death or severe neurologic disability, a framework now exists, based on well-designed clinical trials, for optimal treatment of these entities. Fetoscopic selective laser coagulation of anastomotic vessels on the chorionic plate has been clearly demonstrated to improve survival and neurologic outcomes for Quintero stage ≥2 TTTS. However, many challenges remain unsolved, the most important of which is preterm premature rupture of membranes. Further improvement in the outcomes of monochorionic pregnancies will require improvements in the rate of premature delivery, and improved diagnosis and treatment strategies for early and late onset TTTS.
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Affiliation(s)
- Fatiha Djaafri
- Obstetrics and Maternal-Fetal Medicine, Hôpital Necker Enfants Malades, AP-HP, Paris, France
| | - Julien Stirnemann
- Obstetrics and Maternal-Fetal Medicine, Hôpital Necker Enfants Malades, AP-HP, Paris, France; EA7328, Faculté de Medicine Paris Descartes, Paris, France
| | - Imen Mediouni
- Obstetrics and Maternal-Fetal Medicine, Hôpital Necker Enfants Malades, AP-HP, Paris, France
| | - Claire Colmant
- Obstetrics and Maternal-Fetal Medicine, Hôpital Necker Enfants Malades, AP-HP, Paris, France
| | - Yves Ville
- Obstetrics and Maternal-Fetal Medicine, Hôpital Necker Enfants Malades, AP-HP, Paris, France; EA7328, Faculté de Medicine Paris Descartes, Paris, France.
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Diehl W, Diemert A, Grasso D, Sehner S, Wegscheider K, Hecher K. Fetoscopic laser coagulation in 1020 pregnancies with twin-twin transfusion syndrome demonstrates improvement in double-twin survival rate. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2017; 50:728-735. [PMID: 28477345 DOI: 10.1002/uog.17520] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/08/2017] [Accepted: 04/27/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the growing experience and learning curve of fetoscopic laser coagulation of the placental vascular anastomoses in severe mid-trimester twin-twin transfusion syndrome (TTTS) and its influence on perinatal outcome in a single-center setting. METHODS Between January 1995 and March 2013 we performed laser therapy in 1020 consecutive pregnancies with TTTS between 15.1 and 27.4 weeks' gestation. We compared perinatal outcome in blocks of five sequential groups of 200 cases, taking into account several covariates in order to adjust for case mix and to demonstrate learning curves and success rates. RESULTS The percentage of pregnancies with survival of both fetuses increased from 50.0% (n = 100) in the first 200 cases to 69.5% (n = 153) in the last 220 cases (P = 0.018 for trend) and the overall survival rate for both fetuses in the complete series of 1019 cases with known outcome was 63.3% (n = 645). The survival rate of at least one fetus increased from 80.5% (161/200) in the first group to 91.8% (202/220) in the last group (P = 0.072 for trend) and the overall survival rate of at least one fetus in the complete series was 86.7% (883/1019). In the total population, the mean gestational age at delivery of pregnancies with at least one liveborn neonate was 33.7 ± 3.2 weeks, with a mean interval of 12.9 ± 4.0 weeks between intervention and delivery. Among the first two groups, 124 pregnancies had anterior placentae and were treated with a 0° fetoscope. These cases had the poorest overall outcome, with a double-twin survival rate of 44.4% (55/124), which increased to 65.1% (207/318; P = 0.001) after the introduction of a 30° fetoscope for cases with anterior placenta. The success rate for double-twin survival reached a plateau of 69% at 600 procedures, a rate equalled by a new operator who was trained hands-on and performed 174 of the last 400 procedures. CONCLUSIONS We report the largest single-center experience of laser coagulation in TTTS. We observed a continuous increase in double-twin survival rate owing to the growing experience based on the learning curve and refinements in fetoscopic instruments and techniques. These data provide strong arguments for the centralization of minimally invasive intrauterine surgery in specialized high-volume centers. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- W Diehl
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - A Diemert
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - D Grasso
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - S Sehner
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - K Wegscheider
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - K Hecher
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Caloone J, Huissoud C, Kocot A, Vincenot J, Dehay C, Giroud P, Misery P, Allias F, Rudigoz RC, Melodelima D. Non-invasive high-intensity focused ultrasound treatment of the placenta: a preliminary in-vivo study using a simian model. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2017; 50:635-641. [PMID: 27804180 DOI: 10.1002/uog.17350] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 10/23/2016] [Accepted: 10/24/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To demonstrate the feasibility and efficacy of high-intensity focused ultrasound (HIFU) for the non-invasive creation of placental lesions in a simian model. METHODS Eight pregnant monkeys were exposed to HIFU treatment after anesthesia, using a toroidal HIFU 2.5-MHz transducer with an integrated ultrasound imaging probe. Lesions on the placental tissue were created non-invasively by placing the HIFU probe on the skin surface. Fetal and maternal parameters, such as maternal heart rate, fetal heart rate and subcutaneous and intra-amniotic fluid temperature, were recorded during HIFU exposure. Cesarean section was performed immediately after the procedure to extract the placenta and examine the fetus and the maternal abdominal cavity. Placental HIFU lesions were assessed by ultrasound, gross pathology and histology. RESULTS The mean gestational age of the monkeys was 72 ± 4 days. In total, 13 HIFU procedures were performed. The acoustic power and exposure time were increased progressively. This gradual increase in total energy delivered was used to determine a set of parameters to create reproducible lesions in the placenta without complications. Five placental lesions were observed with average diameters of 6.4 ± 0.5 mm and 7.8 ± 0.7 mm and an average depth of 3.8 ± 1.5 mm. Ultrasound examination of the placentae revealed hyperechoic regions that correlated well with macroscopic analysis of the HIFU lesions. Necrosis of placental tissue exposed to HIFU was confirmed with macroscopic and microscopic analysis. There was no significant variation in maternal and fetal parameters during HIFU exposure. CONCLUSIONS This study demonstrates the feasibility of HIFU applied non-invasively to the placental unit in an in-vivo pregnant monkey model. The technique is safe in the immediate short term and is potentially translatable to human pregnancy. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- J Caloone
- Inserm, U1032, Laboratory of Therapeutic Applications of Ultrasound, Lyon, France
- Université de Lyon, Lyon, France
- Department of Obstetrics and Gynecology, Croix Rousse University Hospital, Lyon, France
| | - C Huissoud
- Department of Obstetrics and Gynecology, Croix Rousse University Hospital, Lyon, France
- Stem Cell and Brain Research Institute, Institut National de la Sante et de la Recherche Médicale U846, Bron, France
| | - A Kocot
- Inserm, U1032, Laboratory of Therapeutic Applications of Ultrasound, Lyon, France
- Université de Lyon, Lyon, France
| | - J Vincenot
- Inserm, U1032, Laboratory of Therapeutic Applications of Ultrasound, Lyon, France
- Université de Lyon, Lyon, France
| | - C Dehay
- Stem Cell and Brain Research Institute, Institut National de la Sante et de la Recherche Médicale U846, Bron, France
| | - P Giroud
- Stem Cell and Brain Research Institute, Institut National de la Sante et de la Recherche Médicale U846, Bron, France
| | - P Misery
- Stem Cell and Brain Research Institute, Institut National de la Sante et de la Recherche Médicale U846, Bron, France
| | - F Allias
- Université de Lyon, Lyon, France
- Department of Pathology, Croix Rousse University Hospital, Lyon, France
| | - R C Rudigoz
- Department of Obstetrics and Gynecology, Croix Rousse University Hospital, Lyon, France
| | - D Melodelima
- Inserm, U1032, Laboratory of Therapeutic Applications of Ultrasound, Lyon, France
- Université de Lyon, Lyon, France
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Thia E, Thain S, Yeo GSH. Fetoscopic laser photocoagulation in twin-to-twin transfusion syndrome: experience from a single institution. Singapore Med J 2017; 58:321-326. [PMID: 27056209 PMCID: PMC5474527 DOI: 10.11622/smedj.2016067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Twin-to-twin transfusion syndrome (TTTS) is the most common serious complication of monochorionic (MC) twin pregnancies, with perinatal mortality rates of up to 90% if untreated. This study aimed to review the perinatal and perioperative outcomes of MC twin pregnancies treated for TTTS by fetoscopic laser photocoagulation (FLP) since its introduction at KK Women's and Children's Hospital (KKH), Singapore, in 2011. METHODS This was a retrospective review of five consecutive patients who underwent FLP of placental anastomoses for TTTS at KKH from June 2011 to March 2014. FLP was offered to patients who were diagnosed with TTTS of at least Quintero Stage II before 26 weeks of gestation. The main outcome measures were perioperative complications and perinatal survival rates. RESULTS Five sets of MC twin pregnancies underwent FLP during the study period - three pregnancies were diagnosed with Stage III TTTS and two pregnancies with Stage II TTTS. Median gestational ages at initial presentation, laser photocoagulation and delivery were 19 (range 17-20) weeks, 20 (range 19-23) weeks and 29 (range 28-34) weeks, respectively. One patient had bleeding into the amniotic cavity intraprocedurally. Overall, the perinatal survival rate, double-infant survival rate and survival rate for at least one twin were 60% (6/10 fetuses), 40% (2/5 twins) and 80% (4/5 twins), respectively. CONCLUSION FLP is a feasible treatment for TTTS, with minimal maternal complications. Perinatal survival rates of this patient group that was managed at our centre were comparable to those of international centres.
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Affiliation(s)
- Edwin Thia
- Department of Maternal Fetal Medicine, KK Women’s and Children’s Hospital, Singapore
| | - Serene Thain
- Department of Obstetrics and Gynaecology, KK Women’s and Children’s Hospital, Singapore
| | - George SH Yeo
- Department of Maternal Fetal Medicine, KK Women’s and Children’s Hospital, Singapore
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Shaw CJ, Civale J, Botting KJ, Niu Y, Ter Haar G, Rivens I, Giussani DA, Lees CC. Noninvasive high-intensity focused ultrasound treatment of twin-twin transfusion syndrome: A preliminary in vivo study. Sci Transl Med 2016; 8:347ra95. [PMID: 27412787 DOI: 10.1126/scitranslmed.aaf2135] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 06/13/2016] [Indexed: 02/11/2024]
Abstract
We investigated the efficacy, maternofetal responses, and safety of using high-intensity focused ultrasound (HIFU) for noninvasive occlusion of placental vasculature compared to sham treatment in anesthetized pregnant sheep. This technique for noninvasive occlusion of placental vasculature may be translatable to the treatment of conditions arising from abnormal placental vasculature, such as twin-twin transfusion syndrome (TTTS). Eleven pregnant sheep were instrumented with maternal and fetal arterial catheters and time-transit flow probes to monitor cardiovascular, acid-base, and metabolic status, and then exposed to HIFU (n = 5) or sham (n = 6) ablation of placental vasculature through the exposed uterine surface. Placental vascular flow was occluded in 28 of 30 targets, and histological examination confirmed occlusion in 24 of 30 targets. In both HIFU and sham exposures, uterine contact reduced maternal uterine artery flow, but delivery of oxygen and glucose to the fetal brain remained normal. HIFU can consistently occlude in vivo placental vessels and ablate blood flow in a pregnant sheep model. Cardiovascular and metabolic fetal responses suggest that the technique is safe in the short term and potentially translatable to human pregnancy.
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Affiliation(s)
- Caroline J Shaw
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK. Institute of Reproductive and Developmental Biology, Imperial College London, London W12 0HS, UK
| | - John Civale
- Joint Department of Physics, Institute of Cancer Research, Sutton, London SM2 5NG, UK
| | - Kimberley J Botting
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Youguo Niu
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Gail Ter Haar
- Joint Department of Physics, Institute of Cancer Research, Sutton, London SM2 5NG, UK
| | - Ian Rivens
- Joint Department of Physics, Institute of Cancer Research, Sutton, London SM2 5NG, UK
| | - Dino A Giussani
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Christoph C Lees
- Institute of Reproductive and Developmental Biology, Imperial College London, London W12 0HS, UK. Department of Obstetrics and Gynaecology, University Hospitals Leuven, 3000 Leuven, Belgium.
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11
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Akkermans J, Peeters SH, Klumper FJ, Lopriore E, Middeldorp JM, Oepkes D. Twenty-Five Years of Fetoscopic Laser Coagulation in Twin-Twin Transfusion Syndrome: A Systematic Review. Fetal Diagn Ther 2015; 38:241-53. [DOI: 10.1159/000437053] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 06/17/2015] [Indexed: 11/19/2022]
Abstract
Objective: The aim of this study was to assess the perinatal outcome of pregnancies with twin-twin transfusion syndrome (TTTS) treated with laser therapy over the past 25 years, and in relation to different techniques used in this time period. Methods: A systematic review of studies reporting on perinatal outcome according to the Meta-Analysis of Observational Studies in Epidemiology (MOOSE) guidelines was conducted. The MEDLINE, Embase and Cochrane Library databases were systematically searched. Comparisons were made in respect to time period and laser technique and Quintero stages. Results: In total, 34 studies reporting on 3,868 monochorionic twin pregnancies were included. The mean survival of both twins increased from 35 to 65% (p = 0.012) and for at least one twin from 70 to 88% (p = 0.009) over the past 25 years. Mean gestational age at birth remained stable over the years at 32 weeks gestation. Also, we showed a significantly improved perinatal survival with the evolution of the laser technique from non-selective to selective, selective sequential and the Solomon technique (p = 0.010). Discussion: Since the introduction of laser therapy for TTTS more than two decades ago, perinatal survival improved significantly. Improved outcome is probably associated with several factors, including evolution of the laser technique, learning curve effect, better referral and improved early neonatal care.
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12
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Müllers SM, McAuliffe FM, Kent E, Carroll S, Mone F, Breslin N, Dalrymple J, Mulcahy C, O'Donoghue K, Martin A, Malone FD. Outcome following selective fetoscopic laser ablation for twin to twin transfusion syndrome: an 8 year national collaborative experience. Eur J Obstet Gynecol Reprod Biol 2015; 191:125-9. [PMID: 26117441 DOI: 10.1016/j.ejogrb.2015.05.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 05/01/2015] [Accepted: 05/19/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE With the recognition of the role of fetoscopic laser ablation for twin to twin transfusion syndrome (TTTS), there is a requirement for auditable standards for this technically challenging and specialized treatment. The purpose of this study is to report on the perinatal and medium-term neurodevelopmental outcomes following an 8-year national single center experience in the management of TTTS using the selective fetoscopic laser ablation technique. STUDY DESIGN An audit of all cases of TTTS treated with selective laser ablation by a single national fetal medicine team was performed. Overall perinatal survival and medium-term neurodevelopmental outcomes were reported and correlated with gestational age at diagnosis, placental location, volume of amnio-reduction, Quintero staging and percentage inter-twin growth discordance. Procedure-related complications were recorded. RESULTS The overall fetal survival for the first 105 consecutive cases of TTTS was 61% (128/210 fetuses). Dual survival occurred in 47% (49/105) of cases, and with a single survival rate of 28% (30/105), perinatal survival of least one infant was achieved in 75% (79/105) of cases. No correlation was found between any clinical or sonographic marker and perinatal outcome, although dual survival was noted to be significantly decreased with increasing Quintero stage (p=0.041). Currently, 86% of survivors have been reported to have a normal medium-term neurological outcome. CONCLUSION Fetoscopic laser ablation is the established optimal treatment for severe twin to twin transfusion syndrome (TTTS). We report comparable short and medium-term outcomes following the selective fetoscopic technique comparing results from our national program with internationally published single-center outcomes, supporting the efficacy and safety of this treatment at our center.
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Affiliation(s)
- Sieglinde M Müllers
- Obstetrics & Gynecology, Rotunda Hospital, Royal College of Surgeons in Ireland, Dublin, Ireland.
| | - Fionnuala M McAuliffe
- UCD Obstetrics & Gynecology, School of Medicine and Medical Science, University College Dublin, National Maternity Hospital, Dublin, Ireland
| | - Etaoin Kent
- Obstetrics & Gynecology, Rotunda Hospital, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Stephen Carroll
- Obstetrics & Gynecology, National Maternity Hospital, Dublin, Ireland
| | - Fionnuala Mone
- Obstetrics & Gynecology, National Maternity Hospital, Dublin, Ireland
| | - Noelle Breslin
- Obstetrics & Gynecology, Rotunda Hospital, Dublin, Ireland
| | - Jane Dalrymple
- Obstetrics & Gynecology, Rotunda Hospital, Dublin, Ireland
| | - Cecelia Mulcahy
- Obstetrics & Gynecology, National Maternity Hospital, Dublin, Ireland
| | - Keelin O'Donoghue
- Obstetrics & Gynecology, University College Cork, Cork University Maternity Hospital, Cork, Ireland
| | - Aisling Martin
- Obstetrics and Gynecology, The Coombe Women and Infants University Hospital, Dublin, Ireland
| | - Fergal D Malone
- Obstetrics & Gynecology, Rotunda Hospital, Royal College of Surgeons in Ireland, Dublin, Ireland
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13
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Abstract
In utero fetal surgery interventions are currently considered in selected cases of congenital diaphragmatic hernia, cystic pulmonary abnormalities, amniotic band sequence, selected congenital heart abnormalities, myelomeningocele, sacrococcygeal teratoma, obstructive uropathy, and complications of twin pregnancy. Randomized controlled trials have demonstrated an advantage for open fetal surgery of myelomeningocele and for fetoscopic selective laser coagulation of placental vessels in twin-to-twin transfusion syndrome. The evidence for other fetal surgery interventions, such as tracheal occlusion in congenital diaphragmatic hernia, excision of lung lesions, fetal balloon cardiac valvuloplasty, and vesicoamniotic shunting for obstructive uropathy, is more limited. Conditions amenable to intrauterine surgical treatment are rare; the mother may consider termination of pregnancy as an option for many of them; treatment can be lifesaving but in itself carries risks to both the infant (preterm premature rupture of the membranes, preterm delivery) and the mother. This makes conducting prospective or randomized trials difficult and explains the relative lack of good-quality evidence in this field. Moreover, there is scanty information on long-term outcomes. It is recommended that fetal surgery procedures be performed in centers with extensive facilities and expertise. The aims of this review were to describe the main fetal surgery procedures and their evidence-based results and to provide generalist obstetricians with an overview of current indications for fetal surgery.
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14
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Akkermans J, Peeters SH, Klumper FJ, Middeldorp JM, Lopriore E, Oepkes D. Is the Sequential Laser Technique for Twin-to-Twin Transfusion Syndrome Truly Superior to the Standard Selective Technique? A Meta-Analysis. Fetal Diagn Ther 2014; 37:251-8. [DOI: 10.1159/000365212] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 06/12/2014] [Indexed: 11/19/2022]
Abstract
Background and Objective: To investigate the efficacy of sequential laser coagulation in the treatment of twin-to-twin transfusion syndrome (TTTS). Data Sources: MEDLINE, EMBASE and the Cochrane Library were systematically searched for comparative studies on the efficacy of sequential versus standard selective laser coagulation for TTTS. The primary outcome measure in these studies was survival of at least one twin, both twins and fetal demise. Results: Three cohort studies comparing the selective laser treatment technique (n = 120) versus the sequential technique (n = 224) in 344 monochorionic twin pregnancies were included. Mean survival of at least one twin was 88% in the selective group versus 92% (p = 0.22) in the sequential group. Mean survival of both twins was lower in the selective group (52%) than in the sequential group (75%) (p = 0.002). Donor fetal demise decreased from 34% in the selective to 10% in the sequential group (p < 0.01), and recipient fetal demise decreased from 16 to 7% (p = 0.02). Conclusion: Limited evidence suggests improved double neonatal survival as well as decreased donor and recipient fetal demise with the use of the sequential technique. However, these results are based on small non-randomized studies with evident forms of bias and methodological limitations. A randomized controlled trial to assess the efficacy of sequential laser technique is therefore required.
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15
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Shaw CJ, ter Haar GR, Rivens IH, Giussani DA, Lees CC. Pathophysiological mechanisms of high-intensity focused ultrasound-mediated vascular occlusion and relevance to non-invasive fetal surgery. J R Soc Interface 2014; 11:20140029. [PMID: 24671935 PMCID: PMC4006242 DOI: 10.1098/rsif.2014.0029] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 03/06/2014] [Indexed: 12/27/2022] Open
Abstract
High-intensity focused ultrasound (HIFU) is a non-invasive technology, which can be used occlude blood vessels in the body. Both the theory underlying and practical process of blood vessel occlusion are still under development and relatively sparse in vivo experimental and therapeutic data exist. HIFU would however provide an alternative to surgery, particularly in circumstances where serious complications inherent to surgery outweigh the potential benefits. Accordingly, the HIFU technique would be of particular utility for fetal and placental interventions, where open or endoscopic surgery is fraught with difficulty and likelihood of complications including premature delivery. This assumes that HIFU could be shown to safely and effectively occlude blood vessels in utero. To understand these mechanisms more fully, we present a review of relevant cross-specialty literature on the topic of vascular HIFU and suggest an integrative mechanism taking into account clinical, physical and engineering considerations through which HIFU may produce vascular occlusion. This model may aid in the design of HIFU protocols to further develop this area, and might be adapted to provide a non-invasive therapy for conditions in fetal medicine where vascular occlusion is beneficial.
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Affiliation(s)
- C. J. Shaw
- Imperial College London, Hammersmith Campus, Du Cane Road, London W12 0HS, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - G. R. ter Haar
- Joint Department of Physics, Institute of Cancer Research: Royal Marsden NHSF Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
| | - I. H. Rivens
- Joint Department of Physics, Institute of Cancer Research: Royal Marsden NHSF Trust, Downs Road, Sutton, Surrey SM2 5PT, UK
| | - D. A. Giussani
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - C. C. Lees
- Imperial College London, Hammersmith Campus, Du Cane Road, London W12 0HS, UK
- Department of Obstetrics and Gynaecology, University Hospitals Leuven, Campus Gasthuisberg, KU Leuven, Belgium
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16
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Diehl W, Diemert A, Hecher K. Twin–twin transfusion syndrome: Treatment and outcome. Best Pract Res Clin Obstet Gynaecol 2014; 28:227-38. [DOI: 10.1016/j.bpobgyn.2013.12.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 11/07/2013] [Accepted: 12/02/2013] [Indexed: 11/26/2022]
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17
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Papanna R, Block-Abraham D, Mann LK, Buhimschi IA, Bebbington M, Garcia E, Kahlek N, Harman C, Johnson A, Baschat A, Moise KJ. Risk factors associated with preterm delivery after fetoscopic laser ablation for twin-twin transfusion syndrome. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2014; 43:48-53. [PMID: 24013922 PMCID: PMC4142227 DOI: 10.1002/uog.13206] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/02/2013] [Indexed: 06/02/2023]
Abstract
OBJECTIVE Despite improved perinatal survival following fetoscopic laser ablation (FLA) for twin-twin transfusion syndrome (TTTS), prematurity remains an important contributor to perinatal mortality and morbidity. The objective of the study was to identify risk factors for complicated preterm delivery after FLA. METHODS Retrospective cohort study of prospectively collected data on maternal/fetal demographics and pre-operative, operative and postoperative variables of 459 patients treated with FLA in three USA fetal centers. Multivariate linear regression was performed to identify significant risk factors associated with preterm delivery, which were cross-validated using the k-fold method. Multivariate logistic regression was performed to identify risk factors for early compared with late preterm delivery based on median gestational age at delivery of 32 weeks. RESULTS There were significant differences in case selection and outcomes between the centers. After controlling for the center of surgery, multivariate analysis indicated that a lower maternal age at procedure, a history of previous prematurity, shortened cervical length, use of amnioinfusion, a cannula diameter of 12 French (Fr), lack of a collagen plug placement and iatrogenic preterm premature rupture of membranes (iPPROM) were significantly associated with a lower gestational age at delivery. CONCLUSIONS Specific fetal/maternal and operative variables are associated with preterm delivery after FLA for the treatment of TTTS. Further studies to modify some of these variables may decrease the perinatal morbidity after laser therapy.
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Affiliation(s)
- R Papanna
- Section of Maternal-Fetal Medicine, Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA; Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA
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Baschat AA, Barber J, Pedersen N, Turan OM, Harman CR. Outcome after fetoscopic selective laser ablation of placental anastomoses vs equatorial laser dichorionization for the treatment of twin-to-twin transfusion syndrome. Am J Obstet Gynecol 2013; 209:234.e1-8. [PMID: 23707807 DOI: 10.1016/j.ajog.2013.05.034] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/24/2013] [Accepted: 05/20/2013] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The objective of the study was to compare the outcome in women with twin-twin transfusion syndrome (TTTS) who were managed by selective laser ablation of placental anastomoses (S-LASER) vs equatorial dichorionization of the anastomoses and chorionic plate (ED-LASER). STUDY DESIGN We conducted an analysis of 2 consecutive cohorts with TTTS treated with S-LASER and ED-LASER. Preoperative, procedural, delivery, and outcome details were compared between treatment groups. RESULTS A total of 147 twin pregnancies had laser (S-LASER, n = 71; ED-LASER, n = 76). Obstetric history, Quintero stage, placental location, individual arterial and venous Doppler parameters, and gestational age at laser and delivery did not differ. Use of lens fetoscope (96.1% vs 50.7%), coagulated anastomosis count (11 vs 15, P < .001), complete equatorial plate visualization (77.5% vs 92.1%, P = .019), and amniotic fluid transparency (80.3% vs 94.7%, P = .011) was greater during ED-LASER. Procedure-related complications, gestational age at delivery, and perinatal details were comparable between groups. ED-LASER was associated with significantly lower recurrence of TTTS (3.9% vs 8.5%), twin anemia polycythemia sequence (2.6% vs 4.2%), and amniotic fluid abnormalities (0% vs 5.6%, P < .05 for all comparisons). Logistic regression identified complete visualization of the equator as the primary determinant for successful TTTS treatment and coagulation of the chorionic plate as an independent cofactor. Double survival at age 6 months was significantly higher after ED-LASER (68.4% vs 50.7%, P < .05), attributable to a lower postlaser and neonatal mortality rates. CONCLUSION In patients with TTTS, photocoagulation of causative anastomoses and the chorionic plate along the vascular equator decreases recurrence without increasing adverse outcome and improves survival compared with the selective technique.
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Affiliation(s)
- Ahmet Alexander Baschat
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA.
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