Sam Ghebrehewet

Dr. Sam Ghebrehewet

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

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

Representative Publications

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7 December 2016 in BMJ
Verified
Journal Article
Open access
PDF file
SGSam Ghebrehewet
Sam Ghebrehewet
PMPeter MacPherson
Peter MacPherson
AHAntonia Ho
Antonia Ho

1 April 2016 in Vaccine
Verified
Journal Article
Closed access
SGSam Ghebrehewet
Sam Ghebrehewet
DTDominic Thorrington
Dominic Thorrington
SFSiobhan Farmer
Siobhan Farmer
JKJames Kearney
James Kearney
DBDeidre Blissett
Deidre Blissett
AKAlex Keenan
Alex Keenan

6 September 2022 in Healthcare
Verified
Journal Article
Open access
PDF file
Diane Ashiru-OredopeDiane Ashiru-Oredope
Diane Ashiru-Oredope
FGFrances Garraghan
Frances Garraghan
OOOmotayo Olaoye
Omotayo Olaoye
EKEva Krockow
Eva Krockow
AMAyodeji Matuluko
Ayodeji Matuluko
RSRichard Skone-James
Richard Skone-James
Antimicrobial stewardship (AMS) initiatives promote the responsible use of antimicrobials in healthcare settings as a key measure to curb the global threat of antimicrobial resistance (AMR). Defining the core elements of AMS is essential for developing and evaluating comprehensive AMS programmes. This project used co-creation and Delphi consensus procedures to adapt and extend the existing published international AMS checklist. The overall objective was to arrive at a contextualised checklist of core AMS elements and key behaviours for use within healthcare settings in Sub-Saharan Africa, as well as to implement the checklist in health institutions in four African countries. The AMS checklist tool was developed using a modified Delphi approach to achieve local expert consensus on the items to be included on the checklist. Fourteen healthcare/public health professionals from Tanzania, Zambia, Uganda, Ghana and the UK were invited to review, score and comment on items from a published global AMS checklist. Following their feedback, 8 items were rephrased, and 25 new items were added to the checklist. The final AMS checklist tool was deployed across 19 healthcare sites and used to assess AMS programmes before and after an AMS intervention in 14 of the 19 sites. The final tool comprised 54 items. Across the 14 sites, the completed checklists consistently showed improvements for all the AMS components following the intervention. The greatest improvements observed were the presence of formal multidisciplinary AMS structures (79%) and the execution of a point-prevalence survey (72%). The elements with the least improvement were access to laboratory/imaging services (7%) and the presence of adequate financial support for AMS (14%). In addition to capturing the quantitative and qualitative changes associated with the AMS intervention, project evaluation suggested that administering the AMS checklist made unique contributions to ongoing AMS activities. Furthermore, 29 additional AMS activities were reported as a direct result of the prompting checklist questions. Contextualised, co-created AMS tools are necessary for managing antimicrobial use across healthcare settings and increasing local AMS ownership and commitment. This study led to the development of a new AMS checklist, which proved successful in capturing AMS improvements in Tanzania, Zambia, Uganda, and Ghana. The tool also made unique contributions to furthering local AMS efforts. This study extends the existing AMS materials for low- and middle-income countries and provides empirical evidence for successful use in practice.

1 May 2021 in Journal of Hospital Infection
Verified
Journal Article
Open access
RGR. Green
R. Green
JTJ.S.P. Tulloch
J.S.P. Tulloch
CTC. Tunnah
C. Tunnah
ECE. Coffey
E. Coffey
KLK. Lawrenson
K. Lawrenson
SGSam Ghebrehewet
Sam Ghebrehewet
COVID-19 care home outbreaks represent a significant proportion of COVID-19 morbidity and mortality in the UK. National testing initially focused on symptomatic care home residents, before extending to asymptomatic cohorts. The aim was to describe the epidemiology and transmission of COVID-19 in outbreak free care homes. A two-point prevalence survey of COVID-19, in 34 Liverpool care homes, was performed in April and May 2020. Changes in prevalence were analysed. Associations between care home characteristics, reported infection, prevention and control interventions, and COVID-19 status were described and analysed. No resident developed COVID-19 symptoms during the study. There was no significant difference between: the number of care homes containing at least one test positive resident between the first (17.6%, 95% confidence interval (CI) 6.8-34.5) and second round (14.7%, 95% CI 5.0-31.1) of testing (p>0.99); and the number of residents testing positive between the first (2.1%, 95% CI 1.2-3.4) and second round (1.0%, 95% CI 0.5-2.1) of testing (P=0.11). Care homes providing nursing care (risk ratio (RR) 7.99, 95% CI 1.1-57.3) and employing agency staff (RR 8.4, 95% CI 1.2-60.8) were more likely to contain test positive residents. Closing residents shared space was not associated with residents testing positive (RR 2.63, 95% CI 0.4-18.5). Asymptomatic COVID-19 care homes showed no evidence of disease transmission or development of outbreaks; suggesting that current infection prevention and control measures are effective in preventing transmission. Repeat testing at two to three weeks had limited or no public health benefits over regular daily monitoring of staff and residents for symptoms. These results should inform policies calling for regular testing of asymptomatic residents.

4 November 2020 in Antibiotics
Verified
Journal Article
Open access
PDF file
SGSam Ghebrehewet
Sam Ghebrehewet
WSWendi Shepherd
Wendi Shepherd
Edwin Panford-QuainooEdwin Panford-Quainoo
Edwin Panford-Quainoo
SSSaran Shantikumar
Saran Shantikumar
VDValerie Decraene
Valerie Decraene
GAGeorge Amofah
George Amofah
Background: High levels of antimicrobial resistance (AMR) in Ghana require the exploration of new approaches to optimise antimicrobial prescribing. This study aims to establish the feasibility of implementation of different delayed/back-up prescribing models on antimicrobial prescribing for upper respiratory tract infections (URTIs). Methods: This study was part of a quality improvement project at LEKMA Hospital, Ghana, (Dec 2019–Feb 2020). Patients meeting inclusion criteria were assigned to one of four groups (Group 0: No prescription given; Group 1; Patient received post-dated antibiotic prescription; Group 2: Offer of a rapid reassessment of patient by a nurse practitioner after 3 days; and Group 3: Post-dated prescription forwarded to hospital pharmacy). Patients were contacted 10 days afterwards to ascertain wellbeing and actions taken, and patients were asked rate the service on a Likert scale. Post-study informal discussions were conducted with hospital staff. Results: In total, 142 patients met inclusion criteria. Groups 0, 1, 2 and 3 had 61, 16, 44 and 21 patients, respectively. Common diagnosis was sore throat (73%). Only one patient took antibiotics after 3 days. Nearly all (141/142) patients were successfully contacted on day 10, and of these, 102 (72%) rated their experiences as good or very good. Informal discussions with staff revealed improved knowledge of AMR. Conclusions: Delayed/back-up prescribing can reduce antibiotic consumption amongst outpatient department patients with suspected URTIs. Delayed/back-up prescribing can be implemented safely in low and middle-income countries (LMICs).

1 May 2021 in Journal of Hospital Infection
Verified
Journal Article
Closed access
JTJ.S.P. Tulloch
J.S.P. Tulloch
RGR. Green
R. Green
CTC. Tunnah
C. Tunnah
ECE. Coffey
E. Coffey
MAM. Ashton
M. Ashton
SGSam Ghebrehewet
Sam Ghebrehewet