29 results on '"Siassakos D"'
Search Results
2. A Cross-sectional Study of Immune Seroconversion to SARS-CoV-2 in Frontline Maternity Health Professionals
- Author
-
Bampoe, S., Lucas, D.N., Neall, G., Sceales, P., Aggarwal, R., Caulfield, K., Siassakos, D., and Odor, P.M.
- Published
- 2021
- Full Text
- View/download PDF
3. Proceed with reasonable care: When legal principles inform training to prevent harm during childbirth
- Author
-
Petrovic, M., primary, Nicholls, J., additional, and Siassakos, D., additional
- Published
- 2022
- Full Text
- View/download PDF
4. Modify, don't stop! Time to reconsider the 'relative' and 'absolute' contraindications to physical activity in pregnancy: an opinion piece.
- Author
-
Hassan, A, Meah, VL, Davies, GA, Davenport, MH, and Siassakos, D
- Subjects
PHYSICAL activity ,PRENATAL depression ,PRENATAL bonding ,PRECONCEPTION care ,PREGNANCY - Published
- 2022
- Full Text
- View/download PDF
5. Care of late intrauterine fetal death and stillbirth: Green-top Guideline No. 55.
- Author
-
Burden C, Merriel A, Bakhbakhi D, Heazell A, and Siassakos D
- Abstract
A combination of mifepristone and a prostaglandin preparation should usually be recommended as the first-line intervention for induction of labour (Grade B). A single 200 milligram dose of mifepristone is appropriate for this indication, followed by: 24
+0 -24+6 weeks of gestation - 400 micrograms buccal/sublingual/vaginal/oral of misoprostol every 3 hours; 25+0 -27+6 weeks of gestation - 200 micrograms buccal/sublingual/vaginal/oral of misoprostol every 4 hours; from 28+0 weeks of gestation - 25-50 micrograms vaginal every 4 hours, or 50-100 micrograms oral every 2 hours [Grade C]. There is insufficient evidence available to recommend a specific regimen of misoprostol for use at more than 28+0 weeks of gestation in women who have had a previous caesarean birth or transmural uterine scar [Grade D]. Women with more than two lower segment caesarean births or atypical scars should be advised that the safety of induction of labour is unknown [Grade D]. Staff should be educated in discussing mode of birth with bereaved parents. Vaginal birth is recommended for most women, but caesarean birth will need to be considered for some [Grade D]. A detailed informed discussion should be undertaken with parents of both physical and psychological aspects of a vaginal birth versus a caesarean birth [Grade C]. Parents should be cared for in an environment that provides adequate safety according to individual clinical circumstance, while meeting their needs to grieve and feel supported in doing so (GPP). Clinical and laboratory tests should be recommended to assess maternal wellbeing (including coagulopathy) and to determine the cause of fetal death, the chance of recurrence and possible means of avoiding future pregnancy complications [Grade D]. Parents should be advised that with full investigation (including postmortem and placental histology) a possible or probable cause can be found in up to three-quarters of late intrauterine fetal deaths [Grade B]. All parents should be offered cytogenetic testing of their baby, which should be performed after written consent is given (GPP). Parents should be advised that postmortem examination can provide information that can sometimes be crucial to the management of future pregnancy [Grade B]., (© 2024 Royal College of Obstetricians and Gynaecologists.)- Published
- 2024
- Full Text
- View/download PDF
6. A national survey of clinicians' opinions of rotational vaginal births.
- Author
-
Parris DL, Jaufuraully S, Opie J, Siassakos D, and Napolitano R
- Subjects
- Humans, Female, Pregnancy, Attitude of Health Personnel, Surveys and Questionnaires, Extraction, Obstetrical methods, Extraction, Obstetrical statistics & numerical data, Version, Fetal methods, United Kingdom, Obstetrical Forceps, Clinical Competence, Obstetrics, Labor Presentation
- Abstract
Introduction: Malposition of the fetal head, defined as occiput transverse or posterior positions, occurs in approximately 5% of births. At full cervical dilatation, fetal malposition is associated with an increased risk of rotational vaginal birth. There are three different rotational methods: manual rotation, rotational ventouse or rotational (Kielland's) forceps. In the absence of robust evidence, it is not currently known which of the three methods is most efficacious, and safest for parents and babies., Objective: To gain greater insights into opinions and preferences of rotational birth to explore the acceptability and feasibility of performing a randomised trial comparing different rotational methods., Material and Methods: A survey was sent via email to obstetricians from the British Maternal Fetal Medicine Society, as well as expert obstetricians and active academics in ongoing research in the UK. The questions focussed on perceived competence, preferred rotational method, location (theatre or labour room), willingness to recruit to an RCT, and its outcome measures. Closed questions were followed by the option of free text to allow further comments. The free text answers underwent thematic analysis., Results: 252 consultant obstetricians responded. The majority stated they were competent in performing manual rotation (88.1%). Half felt proficient using Kielland's rotational forceps (54.4%). Most obstetricians felt skilled in rotational ventouse (76.2%). Manual rotation was the preferred first rotational method of choice in cases of both occiput transverse and posterior positions. The decision for which rotational method to attempt first was considered case-dependent by many. Two thirds of obstetricians would usually conduct rotational births in theatre (67.9%). Over half (52%) do not routinely use intrapartum ultrasound. Most (62.7%) would be willing to recruit to a randomised controlled trial comparing manual versus instrumental rotation. Over half (57.2%) would be willing to recruit to the same RCT if they were the most senior doctor competent in rotational vaginal birth supervising a junior., Conclusion: There is a wide range of practice in conducting rotational vaginal births in the UK. An RCT to investigate the impact of different rotational methods on outcome would be both feasible and desirable, especially in research-active hospitals., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: DP: clinical research fellow for ROTATE and the Sensor Glove, organiser of Art & Craft course, faculty for ROBuST course. SJ: clinical research fellow for the Sensor Glove, founder of Art & Craft course, faculty for ROBuST course. JO: research fellow for the Sensor Glove and Art & Craft. DS: Chief Investigator for ROTATE, Professor of Obstetrics – Sensor Glove, founder of Art & Craft course, delegate of ROBuST course. RN: Project Director and Principal Investigator for ROTATE (University College London Hospitals NHS Trust), faculty of Art & Craft., (Copyright © 2024. Published by Elsevier B.V.)
- Published
- 2024
- Full Text
- View/download PDF
7. A prediction model for stillbirth based on first trimester pre-eclampsia combined screening.
- Author
-
Al-Fattah AN, Mahindra MP, Yusrika MU, Mapindra MP, Marizni S, Putri VP, Besar SP, Widjaja FF, Kusuma RA, and Siassakos D
- Abstract
Objective: To evaluate the accuracy of combined models of maternal biophysical factors, ultrasound, and biochemical markers for predicting stillbirths., Methods: A retrospective cohort study of pregnant women undergoing first-trimester pre-eclampsia screening at 11-13 gestational weeks was conducted. Maternal characteristics and history, mean arterial pressure (MAP) measurement, uterine artery pulsatility index (UtA-PI) ultrasound, maternal ophthalmic peak ratio Doppler, and placental growth factor (PlGF) serum were collected during the visit. Stillbirth was classified as placental dysfunction-related when it occurred with pre-eclampsia or birth weight <10th percentile. Combined prediction models were developed from significant variables in stillbirths, placental dysfunction-related, and controls. We used the area under the receiver-operating-characteristics curve (AUC), sensitivity, and specificity based on a specific cutoff to evaluate the model's predictive performance by measuring the capacity to distinguish between stillbirths and live births., Results: There were 13 (0.79%) cases of stillbirth in 1643 women included in the analysis. The combination of maternal factors, MAP, UtA-PI, and PlGF, significantly contributed to the prediction of stillbirth. This model was a good predictor for all (including controls) types of stillbirth (AUC 0.879, 95% CI: 0.799-0.959, sensitivity of 99.3%, specificity of 38.5%), and an excellent predictor for placental dysfunction-related stillbirth (AUC 0.984, 95% CI: 0.960-1.000, sensitivity of 98.5, specificity of 85.7)., Conclusion: Screening at 11-13 weeks' gestation by combining maternal factors, MAP, UtA-PI, and PlGF, can predict a high proportion of stillbirths. Our model has good accuracy for predicting stillbirths, predominantly placental dysfunction-related stillbirths., (© 2024 The Author(s). International Journal of Gynecology & Obstetrics published by John Wiley & Sons Ltd on behalf of International Federation of Gynecology and Obstetrics.)
- Published
- 2024
- Full Text
- View/download PDF
8. A sensorised surgical glove to improve training and detection of obstetric anal sphincter injury: A preclinical study on a pig model.
- Author
-
Jaufuraully SR, Salvadores Fernandez C, Abbas N, Desjardins A, Tiwari MK, David AL, and Siassakos D
- Subjects
- Animals, Female, Swine, Pregnancy, Sensitivity and Specificity, Disease Models, Animal, Lacerations, Obstetric Labor Complications diagnosis, Humans, Proof of Concept Study, Anal Canal injuries, Gloves, Surgical
- Abstract
Objective: To create a sensorised surgical glove that can accurately identify obstetric anal sphincter injury to facilitate timely repair, reduce complications and aid training., Design: Proof-of-concept., Setting: Laboratory., Sample: Pig models., Methods: Flexible triboelectric pressure/force sensors were mounted onto the fingertips of a routine surgical glove. The sensors produce a current when rubbed on materials of different characteristics which can be analysed. A per rectum examination was performed on the intact sphincter of pig cadavers, analogous to routine examination for obstetric anal sphincter injuries postpartum. An anal sphincter defect was created by cutting through the vaginal mucosa and into the external anal sphincter using a scalpel. The sphincter was then re-examined. Data and signals were interpreted., Main Outcome Measures: Sensitivity and specificity of the glove in detecting anal sphincter injury., Results: In all, 200 examinations were performed. The sensors detected anal sphincter injuries in a pig model with sensitivities between 98% and 100% and a specificity of 100%. The current produced when examining an intact sphincter and sphincter with a defect was significantly different (p < 0.001)., Conclusion: In this preliminary study, the sensorised glove accurately detected anal sphincter injury in a pig model. Future plans include its clinical translation, starting with an in-human study on postpartum women, to determine whether it can accurately detect different types of obstetric anal sphincter injury in vivo., (© 2024 The Authors. BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.)
- Published
- 2024
- Full Text
- View/download PDF
9. A new course on assisted rotational birth and complex caesarean section - Mixed methods evaluation of Art & Craft.
- Author
-
Jaufuraully S, Parris D, Opie J, and Siassakos D
- Subjects
- Pregnancy, Humans, Female, Extraction, Obstetrical, Obstetrical Forceps, Cesarean Section, Obstetrics
- Abstract
Objectives: To assess the utility of Art & Craft - a new, hands-on course on Advanced Rotational Techniques and safe Caesarean biRth at Advanced/Full dilation Training aimed at senior Obstetrics trainees. The aims were to assess whether it improved confidence and skills in rotational vaginal birth, impacted fetal head at caesarean, and ultrasound for fetal position., Study Design: With ethical approval, pre- and post- course questionnaires and post- course interviews of attendees were conducted. A pre course questionnaire was emailed 1 week before the course. Attendees were asked to rate their confidence levels in performing vaginal examination and ultrasound assessment of fetal position, rotational ventouse, manual rotation, Kielland's rotational forceps, and disimpaction of the fetal head during second stage caesarean on a scale of 1 to 5. 1 = not confident at all and 5 = very confident. A post-course questionnaire with the same questions was emailed 3 days after. p values for differences in scores were calculated using the Wilcoxon signed rank test using Stata/MP 18 software., Results: 32 trainees attended the course. 28 questionnaires were available for analysis. The majority 39 % were middle grade (ST3-ST5) level. Initial confidence was very low for rotational forceps (median 1/5). After attending the course and practical stations, respondents' confidence levels increased significantly (p < 0.05) across all domains; vaginal examination from 4 to 5, ultrasound for fetal position, rotational ventouse, and manual rotation from 3 to 5, disimpaction from 4 to 4.5, and Kielland's rotational forceps from 1 to 4. Nine participated in post course interviews, which were thematically analysed. Participants expressed that the course gave them the opportunity to ask specific questions from experts to improve their confidence. A barrier to learning new methods was highlighted in that it is difficult to receive practical training in Kielland's, resulting in low confidence., Conclusion: A practical, hands-on course on complex operative birth significantly increases trainee confidence levels in vaginal examination, ultrasound for fetal position, disimpaction, and techniques for rotational vaginal birth. The evaluation highlights that continued education and practise is required, even when trainees are senior. Evaluation of clinical outcomes after training is needed; and planned., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
10. Second trimester abnormal uterine artery Dopplers and adverse obstetric and neonatal outcomes when PAPP-a is normal.
- Author
-
Jie M, Jaufuraully S, Lambert J, Napolitano R, and Siassakos D
- Subjects
- Infant, Newborn, Pregnancy, Female, Humans, Uterine Artery diagnostic imaging, Pregnancy Trimester, Second, Pregnancy-Associated Plasma Protein-A, Cesarean Section, Retrospective Studies, Placenta, Ultrasonography, Prenatal, Gestational Age, Fetal Growth Retardation diagnosis, Fetal Growth Retardation epidemiology, Pre-Eclampsia epidemiology
- Abstract
Objectives: To explore the association between abnormal uterine artery Dopplers (combined PI > 2.5) - with normal PAPP-A - and adverse obstetric/neonatal outcomes., Methods: This was a retrospective cohort study of 800 patients between 1 March 2019 - 23 November 2021 in a tertiary UK hospital, where it is routine to measure uterine artery Dopplers of all pregnancies during their anomaly scans. 400 nulliparous women/birthing people with complete data were included. 400 nulliparous controls scanned in the same time frame (1.5 years) with normal PAPP-A and uterine artery Dopplers were matched for age and BMI. Outcomes included: mode of birth, postpartum complications, birth weight/centile, Apgar score, gestational age at delivery, neonatal unit admission, and clinical neonatal hypoglycemia. Multivariable analysis was used., Results: Compared to controls, pregnancies with abnormal uterine artery Dopplers and normal PAPP-A were at increased risk of induction (46.5% vs 35.5%, p = .042), cesarean section (46.0% vs 38.0%, p = .002), emergency cesarean section (35.0% vs 26.5%, p = .009), and pre-eclampsia 5.8% vs 2.5%, p = .021). Their babies were more likely to be admitted to the neonatal unit - mostly for prematurity (15.3% vs 6.3%, p = .0004), hypoglycemia (4.0% vs 1.0%, p = .007), be small for gestational age (26.5% vs 11.5%, p = .0001), had intrauterine growth restriction (10.8% vs 1.3%, p = .0001), and be born prematurely (10.0% vs 3.5%, p = .002). Routine measurement of uterine artery Dopplers increased the detection rate of small for gestational age fetuses by 15.1%. Over half of the babies admitted with neonatal hypoglycemia in pregnancies with abnormal uterine artery Dopplers had an unexplained cause., Conclusions: Pregnancies with abnormal uterine Dopplers are not only at increased risk of pre-eclampsia and small for gestational age fetuses/intrauterine growth restriction, but are also at increased risk of emergency cesarean section and adverse neonatal outcomes. The increased incidence of neonatal hypoglycemia is likely driven to some degree by prematurity and placental complications, but possibly also by undiagnosed glucose dysmetabolism. This may warrant routine measurement of uterine artery Dopplers in all pregnancies (regardless of risk), where feasible, to aid antenatal management and counseling.
- Published
- 2023
- Full Text
- View/download PDF
11. Chance of healthy versus adverse outcome in subsequent pregnancy after previous loss beyond 16 weeks: data from a specialized follow-up clinic.
- Author
-
Yusuf H, Stokes J, Wattar BHA, Petrie A, Whitten SM, and Siassakos D
- Subjects
- Infant, Newborn, Pregnancy, Female, Humans, Stillbirth epidemiology, Fetal Growth Retardation epidemiology, Fetal Growth Retardation etiology, Retrospective Studies, Follow-Up Studies, Pregnancy Outcome epidemiology, Fetal Death, Pre-Eclampsia, Abortion, Spontaneous epidemiology, Abortion, Spontaneous etiology
- Abstract
Purpose: Women with a previous fetal demise have a 2-20 fold increased risk of another stillbirth in a subsequent pregnancy when compared to those who have had a live birth. Despite this, there is limited research regarding the management and outcomes of subsequent pregnancies. This study was conducted to accurately quantify the chances of a woman having a healthy subsequent pregnancy after a pregnancy loss., Methods: A retrospective study was conducted at a tertiary-level unit between March 2019 and April 2021. We collected data on all women with a history of previous fetal demise attending a specialized perinatal history clinic and compared the risk of subsequent stillbirth to those with a normal pregnancy outcome. Outcome data included birth outcome, obstetric and medical complications, gestational age and birth weight and mode of delivery. Those who had healthy subsequent pregnancies were compared with those who experienced adverse outcomes., Results: A total of 101 cases were reviewed. Ninety-six women with subsequent pregnancies after a history of fetal demise from 16 weeks were included. Seventy-nine percent of women ( n = 76) delivered a baby at term, without complications. Overall, 2.1% had repeat pregnancy losses ( n = 2) and 2.1% delivered babies with fetal growth restriction ( n = 2). There were no cases of abruption in a subsequent pregnancy. Eighteen neonates were delivered prematurely (18.4%), 15 of these (83.3%) were due to iatrogenic causes and three (16.7%) were spontaneous. In univariable logistic regression analyses, those with adverse outcomes in subsequent pregnancies had greater odds of pre-eclampsia (Odds ratio *(OR) = 3.89, 95% CI = 1.05-14.43, p = .042) and fetal growth restriction (OR = 4.58, 95% CI = 1.41-14.82, p = 0.011) in previous pregnancies compared to those with healthy outcomes. However, in multivariable logistic regression analyses, neither variable had a significant odds ratio (OR = 2.03, 95% CI = 0.44-9.39, p = .366 and OR = 3.42, 95% CI = 0.90 - 13.09, p = .072 for pre-eclampsia and FGR, respectively)., Conclusion: Four in five women had a healthy subsequent pregnancy. This is a reassuring figure for women when contemplating another pregnancy, particularly if cared for in a specialist clinic.
- Published
- 2023
- Full Text
- View/download PDF
12. Access to skills in rotational Kielland forceps.
- Author
-
Parris D and Siassakos D
- Subjects
- Humans, Female, Pregnancy, Obstetrical Forceps, Extraction, Obstetrical
- Published
- 2023
- Full Text
- View/download PDF
13. Physical environment of the operating room during cesarean section: A systematic review.
- Author
-
Le Lous M, Beridot C, Baxter JSH, Huaulme A, Vasconcelos F, Stoyanov D, Siassakos D, and Jannin P
- Subjects
- Infant, Newborn, Pregnancy, Humans, Female, Operating Rooms, Temperature, Mothers, Cesarean Section, Obstetrics
- Abstract
Introduction: Environmental factors in the operating room during cesarean sections are likely important for both women/birthing people and their babies but there is currently a lack of rigorous literature about their evaluation. The principal aim of this study was to systematically examine studies published on the physical environment in the obstetrical operating room during c-sections and its impact on mother and neonate outcomes. The secondary objective was to identify the sensors used to investigate the operating room environment during cesarean sections., Methods: In this literature review, we searched MEDLINE a database using the following keywords: Cesarean section AND (operating room environment OR Noise OR Music OR Video recording OR Light level OR Gentle OR Temperature OR Motion Data). Eligible studies had to be published in English or French within the past 10 years and had to investigate the operating room environment during cesarean sections in women. For each study we reported which aspects of the physical environment were investigated in the OR (i.e., noise, music, movement, light or temperature) and the involved sensors., Results: Of a total of 105 studies screened, we selected 8 articles from title and abstract in PubMed. This small number shows that the field is poorly investigated. The most evaluated environment factors to date are operating room noise and temperature, and the presence of music. Few studies used advanced sensors in the operating room to evaluate environmental factors in a more nuanced and complete way. Two studies concern the sound level, four concern music, one concerns temperature and one analyzed the number of entrances/exits into the OR. No study analyzed light level or more fine-grained movement data., Conclusions: Main findings include increase of noise and motion at specific time-points, for example during delivery or anaesthesia; the positive impact of music on parents and staff alike; and that a warmer theatre is better for babies but more uncomfortable for surgeons., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023. Published by Elsevier B.V.)
- Published
- 2023
- Full Text
- View/download PDF
14. Flexible triboelectric nanogenerators using transparent copper nanowire electrodes: energy harvesting, sensing human activities and material recognition.
- Author
-
Bagchi B, Datta P, Fernandez CS, Gupta P, Jaufuraully S, David AL, Siassakos D, Desjardins A, and Tiwari MK
- Subjects
- Humans, Physical Phenomena, Human Activities, Electrodes, Copper, Nanowires
- Abstract
Triboelectric nanogenerators (TENGs) have emerged as a promising green technology to efficiently harvest otherwise wasted mechanical energy from the environment and human activities. However, cost-effective and reliably performing TENGs require rational integration of triboelectric materials, spacers, and electrodes. The present work reports for the first time the use of oxydation-resistant pure copper nanowires (CuNWs) as an electrode to develop a flexible, and inexpensive TENG through a potentially scalable approach involving vacuum filtration and lactic acid treatment. A ∼6 cm
2 device yields a remarkable open circuit voltage ( Voc ) of 200 V and power density of 10.67 W m-2 under human finger tapping. The device is robust, flexible and noncytotoxic as assessed by stretching/bending maneuvers, corrosion tests, continuous operation for 8000 cycles, and biocompatibility tests using human fibroblast cells. The device can power 115 light emitting diodes (LEDs) and a digital calculator; sense bending and motion from the human hand; and transmit Morse code signals. The robustness, flexibility, transparency, and non-cytotoxicity of the device render it particularly promising for a wide range of energy harvesting and advanced healthcare applications, such as sensorised smart gloves for tactile sensing, material identification and safer surgical intervention.- Published
- 2023
- Full Text
- View/download PDF
15. Editorial: Stillbirths in low-middle income countries: challenges & experiences.
- Author
-
Atkins B, Siassakos D, and Aggarwal N
- Abstract
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
- Published
- 2023
- Full Text
- View/download PDF
16. Routine placental histopathology findings from women testing positive for SARS-CoV-2 during pregnancy: Retrospective cohort comparative study.
- Author
-
Colley CS, Hutchinson JC, Whitten SM, Siassakos D, Sebire NJ, and Hillman SL
- Subjects
- Female, Humans, Pregnancy, Infectious Disease Transmission, Vertical, Pandemics, Placenta blood supply, Retrospective Studies, SARS-CoV-2, COVID-19 epidemiology, Pregnancy Complications, Infectious epidemiology, Reproductive Tract Infections
- Abstract
Objective: To assess the impact of maternal Coronavirus disease 2019 (COVID-19) infection on placental histopathological findings in an unselected population and evaluate the potential effect on the fetus, including the possibility of vertical transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)., Design: Retrospective cohort comparative study of placental histopathological findings in patients with COVID-19, compared with controls., Setting: During the COVID-19 pandemic, placentas were studied from women at University College Hospital London who reported and/or tested positive for COVID-19., Population: Of 10 508 deliveries, 369 (3.5%) women had COVID-19 during pregnancy, with placental histopathology available for 244 women., Methods: Retrospective review of maternal and neonatal characteristics, where placental analysis had been performed. This was compared with available, previously published, histopathological findings from placentas of unselected women., Main Outcome Measures: Frequency of placental histopathological findings and relevant clinical outcomes., Results: Histological abnormalities were reported in 117 of 244 (47.95%) cases, with the most common diagnosis being ascending maternal genital tract infection. There was no statistically significant difference in the frequency of most abnormalities compared with controls. There were four cases of COVID-19 placentitis (1.52%, 95% CI 0.04%-3.00%) and one possible congenital infection, with placental findings of acute maternal genital tract infection. The rate of fetal vascular malperfusion (FVM), at 4.5%, was higher compared with controls (p = 0.00044)., Conclusions: In most cases, placentas from pregnant women infected with SARS-CoV-2 virus do not show a significantly increased frequency of pathology. Evidence for transplacental transmission of SARS-CoV-2 is lacking from this cohort. There is a need for further study into the association between FVM, infection and diabetes., (© 2023 The Authors. BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.)
- Published
- 2023
- Full Text
- View/download PDF
17. A Triboelectric Nanocomposite for Sterile Sensing, Energy Harvesting, and Haptic Diagnostics in Interventional Procedures from Surgical Gloves.
- Author
-
Salvadores Fernandez C, Jaufuraully S, Bagchi B, Chen W, Datta P, Gupta P, David AL, Siassakos D, Desjardins A, and Tiwari MK
- Subjects
- Animals, Swine, Gloves, Surgical, Haptic Technology, Quality of Life, Nanocomposites chemistry, Infertility
- Abstract
Advanced interfacial engineering has the potential to enable the successful realization of three features that are particularly important for a variety of healthcare applications: wettability control, antimicrobial activity to reduce infection risks, and sensing of physiological parameters. Here, a sprayable multifunctional triboelectric coating is exploited as a nontoxic, ultrathin tactile sensor that can be integrated directly on the fingertips of surgical gloves. The coating is based on a polymer blend mixed with zinc oxide (ZnO) nanoparticles, which enables antifouling and antibacterial properties. Additionally, the nanocomposite is superhydrophobic (self-cleaning) and is not cytotoxic. The coating is also triboelectric and can be applied directly onto surgical gloves with printed electrodes. The sensorized gloves so obtained enable mechanical energy harvesting, force sensing, and detection of materials stiffness changes directly from fingertip, which may complement proprioceptive feedback for clinicians. Just as importantly, the sensors also work with a second glove on top offering better reassurance regarding sterility in interventional procedures. As a case study of clinical use for stiffness detection, the sensors demonstrate successful detection of pig anal sphincter injury ex vivo. This may lead to improving the accuracy of diagnosing obstetric anal sphincter injury, resulting in prompt repair, fewer complications, and improved quality of life., (© 2023 The Authors. Advanced Healthcare Materials published by Wiley-VCH GmbH.)
- Published
- 2023
- Full Text
- View/download PDF
18. Are Kielland forceps a safe option for birth?
- Author
-
Parris D and Siassakos D
- Subjects
- Pregnancy, Female, Humans, Extraction, Obstetrical adverse effects, Obstetrical Forceps adverse effects, Parturition
- Published
- 2023
- Full Text
- View/download PDF
19. Stillbirth: prevention and supportive bereavement care.
- Author
-
Atkins B, Kindinger L, Mahindra MP, Moatti Z, and Siassakos D
- Abstract
Around half of the two million stillbirths occurring worldwide each year are preventable. This review compiles the most up-to-date evidence to inform stillbirth prevention. Many general maternal health interventions also reduce the risk of stillbirth, for example, antenatal care attendance. This review focuses on specific aspects of care: glucose metabolism, targeted aspirin prophylaxis, clotting and immune disorders, sleep positions, fetal movement monitoring, and preconception and interconception health. In the past few years, covid-19 infection during pregnancy has emerged as a risk factor for stillbirth, particularly among women who were not vaccinated. Alongside prevention, efforts to address stillbirth must include provision of high quality, supportive, and compassionate bereavement care to improve parents' wellbeing. A growing body of evidence suggests beneficial effects for parents who received supportive care and were offered choices such as mode of birth and the option to see and hold their baby. Staff need support to be able to care for parents effectively, yet, studies consistently highlight the scarcity of specific bereavement care training for healthcare providers. Action is urgently needed and is possible. Action must be taken with the evidence available now, in healthcare settings with high or low resources, to reduce stillbirths and improve training and care., Competing Interests: Competing interests: We have read and understood the BMJ policy on declaration of interests and declare the following interests: BA was secretary and DS co-chair of the Bereavement Working Group of the International Stillbirth Alliance during the writing of this review. BA, DS, and ZM are co-leads on the SUPPORT bereavement care course, which is discussed in the review., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2023
- Full Text
- View/download PDF
20. A systematic review of brachial plexus injuries after caesarean birth: challenging delivery?
- Author
-
Jaufuraully S, Lakshmi Narasimhan A, Stott D, Attilakos G, and Siassakos D
- Subjects
- Female, Pregnancy, Humans, Cesarean Section adverse effects, Case-Control Studies, Risk Factors, Paralysis complications, Brachial Plexus injuries, Brachial Plexus Neuropathies epidemiology, Brachial Plexus Neuropathies etiology, Brachial Plexus Neuropathies prevention & control, Birth Injuries epidemiology, Birth Injuries etiology, Dystocia etiology
- Abstract
Background: Caesarean section (CS) is widely perceived as protective against obstetric brachial plexus injury (BPI), but few studies acknowledge the factors associated with such injury. The objectives of this study were therefore to aggregate cases of BPI after CS, and to illuminate risk factors for BPI., Methods: Pubmed Central, EMBASE and MEDLINE databases were searched using free text: ("brachial plexus injury" or "brachial plexus injuries" or "brachial plexus palsy" or "brachial plexus palsies" or "Erb's palsy" or "Erb's palsies" or "brachial plexus birth injury" or "brachial plexus birth palsy") and ("caesarean" or "cesarean" or "Zavanelli" or "cesarian" or "caesarian" or "shoulder dystocia"). Studies with clinical details of BPI after CS were included. Studies were assessed using the National Institutes for Healthy Study Quality Assessment Tool for Case Series, Cohort and Case-Control Studies., Main Results: 39 studies were eligible. 299 infants sustained BPI after CS. 53% of cases with BPI after CS had risk factors for likely challenging handling/manipulation of the fetus prior to delivery, in the presence of considerable maternal or fetal concerns, and/or in the presence of poor access due to obesity or adhesions., Conclusions: In the presence of factors that would predispose to a challenging delivery, it is difficult to justify that BPI could occur due to in-utero, antepartum events alone. Surgeons should exercise care when operating on women with these risk factors., (© 2023. The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
21. Interventions, outcomes and outcome measurement instruments in stillbirth care research: A systematic review to inform the development of a core outcome set.
- Author
-
Bakhbakhi D, Siassakos D, Davies A, Merriel A, Barnard K, Stead E, Shakespeare C, Duffy JMN, Hinton L, McDowell K, Lyons A, Fraser A, and Burden C
- Subjects
- Child, Female, Humans, Pregnancy, Outcome Assessment, Health Care, Parturition, Psychosocial Support Systems, Stillbirth
- Abstract
Background: A core outcome set could address inconsistent outcome reporting and improve evidence for stillbirth care research, which have been identified as an important research priority., Objectives: To identify outcomes and outcome measurement instruments reported by studies evaluating interventions after the diagnosis of a stillbirth., Search Strategy: Amed, BNI, CINAHL, ClinicalTrials.gov, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Embase, MEDLINE, PsycINFO, and WHO ICTRP from 1998 to August 2021., Selection Criteria: Randomised and non-randomised comparative or non-comparative studies reporting a stillbirth care intervention., Data Collection and Analysis: Interventions, outcomes reported, definitions and outcome measurement tools were extracted., Main Results: Forty randomised and 200 non-randomised studies were included. Fifty-eight different interventions were reported, labour and birth care (52 studies), hospital bereavement care (28 studies), clinical investigations (116 studies), care in a multiple pregnancy (2 studies), psychosocial support (28 studies) and care in a subsequent pregnancy (14 studies). A total of 391 unique outcomes were reported and organised into 14 outcome domains: labour and birth; postpartum; delivery of care; investigations; multiple pregnancy; mental health; emotional functioning; grief and bereavement; social functioning; relationship; whole person; subsequent pregnancy; subsequent children and siblings and economic. A total of 242 outcome measurement instruments were used, with 0-22 tools per outcome., Conclusions: Heterogeneity in outcome reporting, outcome definition and measurement tools in care after stillbirth exists. Considerable research gaps on specific intervention types in stillbirth care were identified. A core outcome set is needed to standardise outcome collection and reporting for stillbirth care research., (© 2023 The Authors. BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.)
- Published
- 2023
- Full Text
- View/download PDF
22. Preventing stillbirth from obstructed labor: A sensorized, low-cost device to train in safer operative birth.
- Author
-
Jaufuraully S, Salvadores Fernandez C, Bagchi B, Gupta P, Desjardins A, Siassakos D, David AL, and Tiwari MK
- Abstract
Background: 98% of stillbirths occur in low- and middle- income countries. Obstructed labor is a common cause for both neonatal and maternal mortality, with a lack of skilled birth attendants one of the main reasons for the reduction in operative vaginal birth, especially in low- and middle- income countries. We introduce a low cost, sensorized, wearable device for digital vaginal examination to facilitate accurate assessment of fetal position and force applied to the fetal head, to aid training in safe operative vaginal birth., Methods: The device consists of flexible pressure/force sensors mounted onto the fingertips of a surgical glove. Phantoms of the neonatal head were developed to replicate sutures. An Obstetrician tested the device on the phantoms by performing a mock vaginal examination at full dilatation. Data was recorded and signals interpreted. Software was developed so that the glove can be used with a simple smartphone app. A patient and public involvement panel was consulted on the glove design and functionality., Results: The sensors achieved a 20 Newton force range and a 0.1 Newton sensitivity, leading to 100% accuracy in detecting fetal sutures, including when different degrees of molding or caput were present. They also detected sutures and force applied with a second sterile surgical glove on top. The software developed allowed a force threshold to be set, alerting the clinician when excessive force is applied. Patient and public involvement panels welcomed the device with great enthusiasm. Feedback indicated that women would accept, and prefer, clinicians to use the device if it could improve safety and reduce the number of vaginal examinations required., Conclusion: Under phantom conditions to simulate the fetal head in labor, the novel sensorized glove can accurately determine fetal sutures and provide real-time force readings, to support safer clinical training and practice in operative birth. The glove is low cost (approximately 1 USD). Software is being developed so fetal position and force readings can be displayed on a mobile phone. Although substantial steps in clinical translation are required, the glove has the potential to support efforts to reduce the number of stillbirths and maternal deaths secondary to obstructed labor in low- and -middle income countries., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (© 2023 Jaufuraully, Salvadores Fernandez, Bagchi, Gupta, Desjardins, Siassakos, David and Tiwari.)
- Published
- 2023
- Full Text
- View/download PDF
23. Magnetic resonance imaging in late pregnancy to improve labour and delivery outcomes - a systematic literature review.
- Author
-
Jaufuraully S, Dromey B, Story L, David AL, Attilakos G, and Siassakos D
- Subjects
- Infant, Newborn, Pregnancy, Female, Humans, Cesarean Section, Delivery, Obstetric methods, Magnetic Resonance Imaging methods, Cephalopelvic Disproportion, Breech Presentation
- Abstract
Background: Magnetic resonance imaging (MRI) provides excellent soft tissue visualisation which may be useful in late pregnancy to predict labour outcome and maternal/neonatal birth trauma., Objective: To study if MRI in late pregnancy can predict maternal and neonatal outcomes of labour and birth., Methods: Systematic review of studies that performed MRI in late pregnancy or immediately postpartum. Studies were included if they imaged maternal pelvic or neonatal structures and assessed birth outcome. Meta-analysis was not performed due to the heterogeneity of studies., Results: Eighteen studies were selected. Twelve studies explored the value of MRI pelvimetry measurement and its utility to predict cephalopelvic disproportion (CPD) and vaginal breech birth. Four explored cervical imaging in predicting time interval to birth. Two imaged women in active labour and assessed mouldability of the fetal skull. No marker of CPD had both high sensitivity and specificity for predicting labour outcome. The fetal pelvic index yielded sensitivities between 59 and 60%, and specificities between 34 to 64%. Similarly, although the sensitivity of the cephalopelvic disproportion index in predicting labour outcome was high (85%), specificity was only 56%. In women with breech presentation, MRI was demonstrated to reduce the rates of emergency caesarean section from 35 to 19%, and allowed better selection of vaginal breech birth. Live birth studies showed that the fetal head undergoes a substantial degree of moulding and deformation during cephalic vaginal birth, which is not considered during pelvimetry. There are conflicting studies on the role of MRI in cervical imaging and predicting time interval to birth., Conclusion: MRI is a promising imaging modality to assess aspects of CPD, yet no current marker of CPD accurately predicts labour outcome. With advances in MRI, it is hoped that novel methods can be developed to better identify individuals at risk of obstructed or pathological labour. Its role in exploring fetal head moulding as a marker of CPD should be further explored., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
24. Let's talk about it: Reframing communication in medical teams.
- Author
-
Angouri J, Mesinioti P, and Siassakos D
- Subjects
- Female, Humans, Interdisciplinary Communication, Pregnancy, Communication, Patient Care Team
- Abstract
Communication is associated with a significant percentage of errors or omissions in secondary healthcare across specialities; it is also the core process in and through which medical teams manage tasks, establish a rhythm and relationship between themselves and the patient, all of which are critical components of clinical practice. Despite this, however, communication is framed in medical training and the literature in either narrow terms or in a broad and fuzzy way, and it is indicative of the issue that teamwork and team communication are perceived and treated separately. In this paper, we draw on completed and ongoing interdisciplinary work to show how teams interact through illustrative examples from a large project on the management of obstetric emergencies. We provide a brief overview of the limitations in current tools and approaches, and we show how research under disciplines that have a long tradition in the analysis of interaction, and particularly healthcare sociolinguistics, can be translated and make a solid contribution to medical research and training., Competing Interests: Declaration of competing interest The authors have no conflicts of interest., (Copyright © 2022. Published by Elsevier Ltd.)
- Published
- 2022
- Full Text
- View/download PDF
25. Abnormal placental villous maturity and dysregulated glucose metabolism: implications for stillbirth prevention.
- Author
-
Siassakos D, Bourne I, Sebire N, Kindinger L, Whitten SM, and Battaglino C
- Subjects
- Female, Glucose, Humans, Placenta pathology, Pregnancy, Uterine Artery, Diabetes, Gestational diagnosis, Diabetes, Gestational pathology, Stillbirth epidemiology
- Abstract
Objectives: In the UK one in 250 pregnancies end in stillbirth. Abnormal placental villous maturation, commonly associated with gestational diabetes, is a risk factor for stillbirth. Histopathology reports of placental distal villous immaturity (DVI) are reported disproportionately in placentas from otherwise unexplained stillbirths in women without formal diagnosis of diabetes but with either clinical characteristics or risk factors for diabetes. This study aims to establish maternal factors associated with DVI in relation to stillbirth., Methods: Placental histopathology reports were reviewed for all pregnant women delivering at University College London Hospital between July 2018 to March 2020. Maternal characteristics and birth outcomes of those with DVI were compared to those with other placental lesions or abnormal villous maturation., Results: Of the 752 placental histopathology reports reviewed, 11 (1.5%) were reported as diagnostic of DVI. Eighty cases were sampled for clinical record analysis. All women with DVI had normal PAPP-A (>0.4 MoM), normal uterine artery Doppler studies (UtA-PI) and were normotensive throughout pregnancy. Nearly one in five babies (2/11, 18.5%) with DVI were stillborn and 70% had at least one high glucose test result in pregnancy despite no formal diagnosis of diabetes., Conclusions: These findings suggest that the mechanism underlying stillbirth in DVI likely relates to glucose dysmetabolism, not sufficient for diagnosis using current criteria for gestational diabetes, resulting in placental dysfunction that is not identifiable before the third trimester. Relying on conventional diabetes tests, foetal macrosomia or growth restriction, may not identify all pregnancies at risk of adverse outcomes from glucose dysmetabolism., (© 2022 Walter de Gruyter GmbH, Berlin/Boston.)
- Published
- 2022
- Full Text
- View/download PDF
26. Preface.
- Author
-
Siassakos D and Jaufuraully S
- Published
- 2022
- Full Text
- View/download PDF
27. Evidence of disparities in the provision of the maternal postpartum 6-week check in primary care in England, 2015-2018: an observational study using the Clinical Practice Research Datalink (CPRD).
- Author
-
Li Y, Kurinczuk JJ, Gale C, Siassakos D, and Carson C
- Subjects
- Cohort Studies, England epidemiology, Female, Humans, Infant, Newborn, Pregnancy, Primary Health Care, Mothers, Postpartum Period
- Abstract
Background: A maternal postpartum 6-week check (SWC) with a general practitioner (GP) is now considered an essential service in England, a recent policy change intended to improve women's health. We aimed to provide an up-to-date snapshot of the prevalence of SWC prior to the policy change as a baseline, and to explore factors associated with having a late or no check., Methods: We conducted a cohort study using primary care records in England (Clinical Practice Research Datalink (CPRD)). 34 337 women who gave birth between 1 July 2015 and 30 June 2018 and had ≥12 weeks of follow-up post partum were identified in the CPRD Pregnancy Register. The proportion who had evidence of an SWC with a GP was calculated, and regression analysis was used to assess the association between women's characteristics and risks of a late or no check., Results: Sixty-two per cent (95% CI 58% to 67%) of women had an SWC recorded at their GP practice within 12 weeks post partum, another 27% had other consultations. Forty per cent had an SWC at the recommended 6-8 weeks, 2% earlier and 20% later. A late or no check was more common among younger women, mothers of preterm babies or those registered in more deprived areas., Conclusions: Nearly 40% of women did not have a postpartum SWC recorded. Provision or uptake was not equitable; younger women and those in more deprived areas were less likely to have a record of such check, suggesting postpartum care in general practice may be missing some women who need it most., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ.)
- Published
- 2022
- Full Text
- View/download PDF
28. Modify, don't stop! Time to reconsider the 'relative' and 'absolute' contraindications to physical activity in pregnancy: an opinion piece.
- Author
-
Hassan A, Meah VL, Davies GA, Davenport MH, and Siassakos D
- Subjects
- Contraindications, Female, Humans, Pregnancy, Exercise adverse effects, Exercise standards, Prenatal Care standards
- Published
- 2022
- Full Text
- View/download PDF
29. Feasibility and design of a trial regarding the optimal mode of delivery for preterm birth: the CASSAVA multiple methods study.
- Author
-
Norman JE, Lawton J, Stock SJ, Siassakos D, Norrie J, Hallowell N, Chowdhry S, Hart RI, Odd D, Brewin J, Culshaw L, Lee-Davey C, Tebbutt H, and Whyte S
- Subjects
- Humans, Infant, Newborn, Pregnancy, Cesarean Section, Feasibility Studies, Infant, Premature, Pandemics, SARS-CoV-2, Female, COVID-19, Premature Birth epidemiology
- Abstract
Background: Around 60,000 babies are born preterm (prior to 37 weeks' gestation) each year in the UK. There is little evidence on the optimal birth mode (vaginal or caesarean section)., Objective: The overall aim of the CASSAVA project was to determine if a trial to define the optimal mode of preterm birth could be carried out and, if so, determine what sort of trial could be conducted and how it could best be performed. We aimed to determine the specific groups of preterm women and babies for whom there are uncertainties about the best planned mode of birth, and if there would be willingness to recruit to, and participate in, a randomised trial to address some, but not all, of these uncertainties. This project was conducted in response to a Heath Technology Assessment programme commissioning call (17/22 'Mode of delivery for preterm infants')., Methods: We conducted clinician and patient surveys ( n = 224 and n = 379, respectively) to identify current practice and opinion, and a consensus survey and Delphi workshop ( n = 76 and n = 22 participants, respectively) to inform the design of a hypothetical clinical trial. The protocol for this clinical trial/vignette was used in telephone interviews with clinicians ( n = 24) and in focus groups with potential participants ( n = 13)., Results: Planned sample size and data saturation was achieved for all groups except for focus groups with participants, as this had to be curtailed because of the COVID-19 pandemic and data saturation was not achieved. There was broad agreement from parents and health-care professionals that a trial is needed. The clinician survey demonstrated a variety of practice and opinion. The parent survey suggested that women and their families generally preferred vaginal birth at later gestations and caesarean section for preterm infants. The interactive workshop and Delphi consensus process confirmed the need for more evidence (hence the case for a trial) and provided rich information on what a future trial should entail. It was agreed that any trial should address the areas with most uncertainty, including the management of women at 26-32 weeks' gestation, with either spontaneous preterm labour (cephalic presentation) or where preterm birth was medically indicated. Clear themes around the challenges inherent in conducting any trial emerged, including the concept of equipoise itself. Specific issues were as follows: different clinicians and participants would be in equipoise for each clinical scenario, effective conduct of the trial would require appropriate resources and expertise within the hospital conducting the trial, potential participants would welcome information on the trial well before the onset of labour and minority ethnic groups would require tailored approaches., Conclusion: Given the lack of evidence and the variation of practice and opinion in this area, and having listened to clinicians and potential participants, we conclude that a trial should be conducted and the outlined challenges resolved., Future Work: The CASSAVA project could be used to inform the design of a randomised trial and indicates how such a trial could be carried out. Any future trial would benefit from a pilot with qualitative input and a study within a trial to inform optimal recruitment., Limitations: Certainty that a trial could be conducted can be determined only when it is attempted., Trial Registration: Current Controlled Trials ISRCTN12295730., Funding: This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment ; Vol. 25, No. 61. See the NIHR Journals Library website for further project information.
- Published
- 2021
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.