Shawn Walker

Dr. Shawn Walker

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2016 in Midwifery
Verified
Journal Article
Open access
SWShawn Walker
Shawn Walker
MSMandie Scamell
Mandie Scamell
PPPam Parker
Pam Parker
To establish a consensus of opinion on standards of competence for professionals attending upright breech births. a three-round Delphi e-survey. multinational. a panel of 13 obstetricians, 13 midwives and two user representatives. Clinicians had attended >20 upright breech births, or >10 upright among >40 total breech births. Mean level of experience=135 breech births, median=100 breech births. an initial survey contained open-ended questions. Answers were coded and amalgamated to form 164 statements in the second round and 9 further statements in the third round. Panellists were asked to evaluate their agreement with each statement using a 5-point Likert scale. The pre-determined level of consensus was 70% of respondents indicating agreement or strong agreement with the statement. the panel returned a consensus-level agreement on 63 statements under the theme, 'Standards of Competence.' Panellists supported teaching breech as a 'normal' skill rather than an emergency, including optimal mechanisms and breech-specific progress measures, upright variations of classical manoeuvres, the initiation of resuscitation with the umbilical cord intact, birth videos as learning tools, and the development of breech teams to support the wider team in all maternity care settings. although every health professional should maintain basic competence to assist unanticipated breech births, establishing enhanced training and standards for those who support planned breech births may help protect users and providers of maternity services, while introducing greater choice and flexibility for women seeking the option of vaginal breech birth.

5 December 2017 in Birth
Verified
Journal Article
Closed access
PDF file
SWShawn Walker
Shawn Walker
PPPam Parker
Pam Parker
MSMandie Scamell
Mandie Scamell

20 January 2020 in Birth
Verified
Journal Article
Open access
PDF file
ARAnke Reitter
Anke Reitter
AHAlexandra Halliday
Alexandra Halliday
SWShawn Walker
Shawn Walker
Background: We aimed to identify common features of upright vaginal breech births with good outcomes to refine a physiological approach to teaching breech birth.Methods: We performed a structured analysis of 42 videos of successful upright breech births (eg, kneeling, hand/knees), facilitated by obstetricians (n = 34) and midwives (n = 8) in nine different countries. Precise timings and relevant clinical details were recorded on an Excel spreadsheet. Each video was analyzed twice by at least two members of the research team. Time‐to‐event intervals, frequencies of interventions, and descriptive statistics were calculated using SPSS.Results: A completely spontaneous (labor mechanisms and maternal effort only) birth occurred in 14/42 (33%) cases. The median time between the birth of the fetal pelvis and the head in all births was 1:52 (IQR 1:05,2:46; min:sec). Lack of spontaneous rotation to a sacro‐anterior position by the time the fetus had emerged to the nipple line was strongly associated with fetal arm entrapment. The following maneuvers were used: shoulder press to flex the aftercoming head in midpelvis or outlet (n = 24), sweeping down arm/s (n = 12), buttock lift to assist shoulder press (n = 6), modified Mauriceau (n = 6), rotational maneuvers to release an entrapped arm (n = 6), elevate and rotate fetal head to assist engagement (n = 2), and conversion into supine maternal position (n = 2).Conclusions: Most upright breech births occur within 3 minutes of the birth of the fetal pelvis. Upright breech birth attendants use variations of traditional maneuvers. We introduce a physiological breech algorithm as an initial timekeeping framework for teaching, research, and practice.

1 December 2016 in Midwifery
Verified
Journal Article
Open access
SWShawn Walker
Shawn Walker
MSMandie Scamell
Mandie Scamell
PPPam Parker
Pam Parker
To establish a multi-professional consensus on shared principles underlying the practice of physiological breech birth. three-round Delphi e-survey. multi-national. a panel of thirteen obstetricians and thirteen midwives, experienced in facilitating physiological breech births in varied settings, and involving varied maternal birthing positions, and two service user representatives. an initial survey contained open-ended questions. Answers were coded and amalgamated into 60 statements in Round 1 and a further 6 statements in Round 2. Participants considered statements in the following categories: first principles (14), maternal positioning (12), birth environment (18), fetal positions (14), safe progress (8). The panel indicated the extent of their agreement using a 5-point Likert scale. The pre-determined level of consensus was 70% of respondents indicating 4 or 5 on the Likert scale (agreement or strong agreement). the panel indicated consensus on 37 of 66 proposed statements concerning 'Principles of Practice.' Negative data (29/66 statements) are also reported, highlighting areas of divergent opinions. The findings suggest a paradigm shift away from risk management strategies based on prediction and control, and towards facilitation strategies based on relationship and response. Upright positions are a tool and not a rule of physiological breech birth. the parameters of 'normal for breech' require further exploration to support professionals working within a paradigm of complex normality. The principles articulated in this research can be used to design further research exploring the influence of physiological breech practices on neonatal and maternal outcomes, including women's experiences of maternity care.

1 June 2018 in Women and Birth
Verified
Journal Article
Closed access
SWShawn Walker
Shawn Walker
MSMandie Scamell
Mandie Scamell
PPPam Parker
Pam Parker

23 June 2021 in Birth
Verified
Journal Article
Open access
PDF file
SMStella Mattiolo
Stella Mattiolo
ESEmma Spillane
Emma Spillane
SWShawn Walker
Shawn Walker
Background: The “physiological breech birth” one‐day training program is based on evidence about the physiology of breech births and how clinicians learn breech skills. Previous evaluations have demonstrated positive effects on confidence and knowledge, but the training's effect on clinical practice and outcomes is unknown.Methods: A mixed‐methods evaluation was conducted in eight National Health Service hospitals in England and Northern Ireland. Changes in confidence and knowledge were assessed using pretraining and post‐training surveys. Mode of birth and maternal birth positions were evaluated using audit data covering one year before the training and one year after, for all singleton vaginal breech births at term.Findings: A total of 263 participants completed the surveys. Confidence in managing breech births in both upright and supine positions significantly increased, as did participant knowledge. Audited data for 1402 women were collected. Overall vaginal birth rates remained similar in both periods. Among singleton vaginal breech births >37 weeks, the use of upright birthing positions increased significantly (P = .002). The study was not powered to detect differences in other outcomes, but pilot data were collected to inform the design of future studies.Conclusions: Increase in use of upright birthing positions suggests that physiological breech birth training is likely to lead to clinical practice changes, which may help support maternal choice in line with current guidance. However, provision of a one‐day training program did not change overall vaginal breech birth rates. Adequately powered research is needed to determine effects of clinical practice changes on clinical outcomes.