Publications by category
Journal articles
Knight SR, Shaw CA, Pius R, Drake TM, Norman L, Ademuyiwa AO, Adisa AO, Aguilera ML, Al-Saqqa SW, Al-Slaibi I, et al (2022). Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study.
The Lancet Global Health,
10(7), e1003-e1011.
Abstract:
Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study
Background: Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide. Methods: a multimethods analysis was performed as part of the GlobalSurg 3 study—a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital. Findings: Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3·85 [95% CI 2·58–5·75]; p
Abstract.
Adamina M, Ademuyiwa A, Adisa A, Bhangu AA, Bravo AM, Cunha MF, Emile S, Ghosh D, Glasbey JC, Harris B, et al (2022). The impact of surgical delay on resectability of colorectal cancer: an international prospective cohort study.
COLORECTAL DISEASE,
24(6), 708-726.
Author URL.
Lawday S, Flamey N, Fowler GE, Leaning M, Dyar N, Daniels IR, Smart NJ, Hyde C (2021). Quality of life in restorative versus non-restorative resections for rectal cancer: systematic review.
BJS Open,
5(6).
Abstract:
Quality of life in restorative versus non-restorative resections for rectal cancer: systematic review.
BACKGROUND: Low rectal cancers could be treated using restorative (anterior resection, AR) or non-restorative procedures with an end/permanent stoma (Hartmann's, HE; or abdominoperineal excision, APE). Although the surgical choice is determined by tumour and patient factors, quality of life (QoL) will also influence the patient's future beyond cancer. This systematic review of the literature compared postoperative QoL between the restorative and non-restorative techniques using validated measurement tools. METHODS: the review was registered on PROSPERO (CRD42020131492). Embase and MEDLINE, along with grey literature and trials websites, were searched comprehensively for papers published since 2012. Inclusion criteria were original research in an adult population with rectal cancer that reported QoL using a validated tool, including the European Organization for Research and Treatment of Cancer QLQ-CR30, QLQ-CR29, and QLQ-CR38. Studies were included if they compared AR with APE (or HE), independent of study design. Risk of bias was assessed using the Risk of Bias in Non-Randomized Studies of Interventions (ROBINS-I) tool. Outcomes of interest were: QoL, pain, gastrointestinal (GI) symptoms (stool frequency, flatulence, diarrhoea and constipation), and body image. RESULTS: Nineteen studies met the inclusion criteria with a total of 6453 patients; all papers were observational and just four included preoperative evaluations. There was no identifiable difference in global QoL and pain between the two surgical techniques. Reported results regarding GI symptoms and body image documented similar findings. The ROBINS-I tool highlighted a significant risk of bias across the studies. CONCLUSION: Currently, it is not possible to draw a firm conclusion on postoperative QoL, pain, GI symptoms, and body image following restorative or non-restorative surgery. The included studies were generally of poor quality, lacked preoperative evaluations, and showed considerable bias in the data.
Abstract.
Author URL.
Khan H, Flesher E, Marshman J, Harding A, Bethune R, Lawday S (2020). 'I've got a little list'-the scourge of a surgical junior. A quality improvement project to change the surgical patient list in a district general hospital.
BMJ Open Qual,
9(2).
Abstract:
'I've got a little list'-the scourge of a surgical junior. A quality improvement project to change the surgical patient list in a district general hospital.
BACKGROUND: Junior doctors at the Royal Devon and Exeter Hospital spend hours every day creating and updating patient lists for all surgical specialties on Microsoft Excel spreadsheets. This not only consumes time that should be spent on clinical tasks, it allows for human errors, system errors and patient safety concerns. Our aim was to reduce time spent on the list and reduce the chance for error. METHODS: We measured the time junior doctors spent creating and updating the surgical lists for one specialty, and on-call shifts. Our first Plan-Do-Study-Act (PDSA) cycle was to introduce clinical secretaries; this reduced the time spent by ward teams on the list but had no effect on the on-call team. We then worked with the hospital application developer to adapt software currently used to suit all surgical teams. Once completed, this software was rolled out alongside the existing spreadsheet method with a view to a switch after a transition period. RESULTS: the introduction of clinical secretaries reduced the time spent on the colorectal surgery list from 99.22 min a day to 43.38 min. The on-call team however did not benefit from this intervention. Following the introduction of the new software, the day on-call team time spent on the list changed from 121 min a day to 4.66 min. The night on-call team time changed from 91 min to 7.38 min. CONCLUSION: Reducing the time juniors spend compiling surgical lists has clear benefits to patients with extra time for junior doctors to clerk patients. The use of an automated system removes the chance of error in transcription of blood results. Due to the success of this project, colorectal, upper gastrointestinal, urology, vascular and on-call teams have adopted the new list permanently.
Abstract.
Author URL.
Lawday S, Abraham K, Joyce K, Shellie Z, Shuttleworth R, Dunne R, Nowell G, Corke S, Silver C, Hayward R, et al (2020). Bleeding issue: a quality improvement project on the phlebotomy service at the Royal Devon and Exeter Hospital. BMJ Open Quality, 9(1).
Chapman SJ, Clerc D, Blanco-Colino R, Otto A, Nepogodiev D, Pagano G, Schaeff V, Soares A, Zaffaroni G, Žebrák R, et al (2020). Safety and efficacy of non-steroidal anti-inflammatory drugs to reduce ileus after colorectal surgery.
British Journal of Surgery,
107(2), e161-e169.
Abstract:
Safety and efficacy of non-steroidal anti-inflammatory drugs to reduce ileus after colorectal surgery
Background: Ileus is common after elective colorectal surgery, and is associated with increased adverse events and prolonged hospital stay. The aim was to assess the role of non-steroidal anti-inflammatory drugs (NSAIDs) for reducing ileus after surgery. Methods: a prospective multicentre cohort study was delivered by an international, student- and trainee-led collaborative group. Adult patients undergoing elective colorectal resection between January and April 2018 were included. The primary outcome was time to gastrointestinal recovery, measured using a composite measure of bowel function and tolerance to oral intake. The impact of NSAIDs was explored using Cox regression analyses, including the results of a centre-specific survey of compliance to enhanced recovery principles. Secondary safety outcomes included anastomotic leak rate and acute kidney injury. Results: a total of 4164 patients were included, with a median age of 68 (i.q.r. 57–75) years (54·9 per cent men). Some 1153 (27·7 per cent) received NSAIDs on postoperative days 1–3, of whom 1061 (92·0 per cent) received non-selective cyclo-oxygenase inhibitors. After adjustment for baseline differences, the mean time to gastrointestinal recovery did not differ significantly between patients who received NSAIDs and those who did not (4·6 versus 4·8 days; hazard ratio 1·04, 95 per cent c.i. 0·96 to 1·12; P = 0·360). There were no significant differences in anastomotic leak rate (5·4 versus 4·6 per cent; P = 0·349) or acute kidney injury (14·3 versus 13·8 per cent; P = 0·666) between the groups. Significantly fewer patients receiving NSAIDs required strong opioid analgesia (35·3 versus 56·7 per cent; P < 0·001). Conclusion: NSAIDs did not reduce the time for gastrointestinal recovery after colorectal surgery, but they were safe and associated with reduced postoperative opioid requirement.
Abstract.
STARSurg Collaborative, Nepogodiev D (2019). Challenges of one-year longitudinal follow-up of a prospective, observational cohort study using an anonymised database: recommendations for trainee research collaboratives.
BMC Med Res Methodol,
19(1).
Abstract:
Challenges of one-year longitudinal follow-up of a prospective, observational cohort study using an anonymised database: recommendations for trainee research collaboratives.
BACKGROUND: Trainee research collaboratives (TRCs) have pioneered high quality, prospective 'snap-shot' surgical cohort studies in the UK. Outcomes After Kidney injury in Surgery (OAKS) was the first TRC cohort study to attempt to collect one-year follow-up data. The aims of this study were to evaluate one-year follow-up and data completion rates, and to identify factors associated with improved follow-up rates. METHODS: in this multicentre study, patients undergoing major gastrointestinal surgery were prospectively identified and followed up at one-year following surgery for six clinical outcomes. The primary outcome for this report was the follow-up rate for mortality at 1 year. The secondary outcome was the data completeness rate in those patients who were followed-up. An electronic survey was disseminated to investigators to identify strategies associated with improved follow-up. RESULTS: of the 173 centres that collected baseline data, 126 centres registered to participate in one-year follow-up. Overall 62.3% (3482/5585) of patients were followed-up at 1 year; in centres registered to collect one-year outcomes, the follow-up rate was 82.6% (3482/4213). There were no differences in sex, comorbidity, operative urgency, or 7-day postoperative AKI rate between patients who were lost to follow-up and those who were successfully followed-up. In centres registered to collect one-year follow-up outcomes, overall data completeness was 83.1%, with 57.9% (73/126) of centres having ≥95% data completeness. Factors associated with increased likelihood of achieving ≥95% data completeness were total number of patients to be followed-up (77.4% in centres with 60 patients, p = 0.030), and central versus local storage of patient identifiers (72.5% vs 48.0%, respectively, p = 0.006). CONCLUSIONS: TRC methodology can be used to follow-up patients identified in prospective cohort studies at one-year. Follow-up rates are maximized by central storage of patient identifiers.
Abstract.
Author URL.
Macmillan A, Massey L, Lawday S, Bethune RM (2019). Response to ‘Clinical outcomes and inflammatory response to single-incision laparoscopic (SIL) colorectal surgery: a single-blinded randomized controlled pilot study’. Colorectal Disease, 21(5).
Drake TM, Cheung LK, Gaba F, Glasbey J, Griffiths N, Helliwell RJ, Huq T, Khaw R, Mayes J, Khan S, et al (2018). Association between peri-operative angiotensin-converting enzyme inhibitors and angiotensin-2 receptor blockers and acute kidney injury in major elective non-cardiac surgery: a multicentre, prospective cohort study.
Anaesthesia,
73(10), 1214-1222.
Abstract:
Association between peri-operative angiotensin-converting enzyme inhibitors and angiotensin-2 receptor blockers and acute kidney injury in major elective non-cardiac surgery: a multicentre, prospective cohort study
The peri-operative use of angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers is thought to be associated with an increased risk of postoperative acute kidney injury. To reduce this risk, these agents are commonly withheld during the peri-operative period. This study aimed to investigate if withholding angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers peri-operatively reduces the risk of acute kidney injury following major non-cardiac surgery. Patients undergoing elective major surgery on the gastrointestinal tract and/or the liver were eligible for inclusion in this prospective study. The primary outcome was the development of acute kidney injury within seven days of operation. Adjusted multi-level models were used to account for centre-level effects and propensity score matching was used to reduce the effects of selection bias between treatment groups. A total of 949 patients were included from 160 centres across the UK and Republic of Ireland. From this population, 573 (60.4%) patients had their angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers withheld during the peri-operative period. One hundred and seventy-five (18.4%) patients developed acute kidney injury; there was no difference in the incidence of acute kidney injury between patients who had their angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers continued or withheld (107 (18.7%) vs. 68 (18.1%), respectively; p = 0.914). Following propensity matching, withholding angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers did not demonstrate a protective effect against the development of postoperative acute kidney injury (OR (95%CI) 0.89 (0.58–1.34); p = 0.567).
Abstract.
Lawday S, Leaning M, Flannery O, Bethune R (2018). Follow-up of the STOMAMESH Cohort. Annals of Surgery, 268(2).
Nepogodiev D, Walker K, Glasbey JC, Drake TM, Borakati A, Kamarajah S, McLean K, Khatri C, Arulkumaran N, Harrison EM, et al (2018). Prognostic model to predict postoperative acute kidney injury in patients undergoing major gastrointestinal surgery based on a national prospective observational cohort study.
BJS OPEN,
2(6), 400-410.
Author URL.
Lawday S, Ricciardi E, Bethune R, McDermott F (2018). Response to ‘Preoperative geriatric assessment and tailored interventions in frail older patients with colorectal cancer: a randomized controlled trial’. Colorectal Disease, 20(4).
Lawday S, Keogh K, Perkins D, Smart N, Daniels I (2017). Decision-making in the Over-90s with Colorectal Cancer. International Journal of Surgery, 47
(2017). Poster Abstracts. Colorectal Disease, 19(S4), 14-64.
Publications by year
2022
Knight SR, Shaw CA, Pius R, Drake TM, Norman L, Ademuyiwa AO, Adisa AO, Aguilera ML, Al-Saqqa SW, Al-Slaibi I, et al (2022). Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study.
The Lancet Global Health,
10(7), e1003-e1011.
Abstract:
Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study
Background: Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide. Methods: a multimethods analysis was performed as part of the GlobalSurg 3 study—a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital. Findings: Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3·85 [95% CI 2·58–5·75]; p
Abstract.
Lawday S (2022). REACT Study: do RandomisEd trials Alter Clinical pracTise? a Qualitative Study.
Abstract:
REACT Study: do RandomisEd trials Alter Clinical pracTise? a Qualitative Study
Background
The STITCH trial published high quality randomised data demonstrating the superiority of small bite over mass closure for the reduction of incisional hernias following elective laparotomy. Previous research has shown time taken for the implementation of evidenced based practise is, on average, 17 years. We aim to understand barriers to implementation of small bite closure into clinical practise.
Methods
Semi-structured interviews were completed with surgeons at a single institution in South West England. Interview transcripts underwent thematic analysis with themes identified following coding and subsequent iterative discussions within the research team.
Results
Nine interviews of eight general surgical consultants and registrars and one urological consultant were performed. Average duration of the interviews was 22:49 minutes (14:20-36.37). Three themes were identified as barriers to the introduction of small bite closure. ‘Trusting the Evidence & Critical Appraisal’ highlighted issues with the published trial and access to data. ‘Surgical Attitude to Risk’ identified differences in personality traits and the importance of guidelines from professional bodies to support practise change. ‘Adopting Evidence in Practise’ discussed training availability, system and patient issues within local hospitals.
Conclusion
Surgeons have to manage the balance between pushing boundaries to improve outcomes and a safety first approach. This influences the adoption of new techniques, such as small bite closure. This study has identified three themes that result in differences in the adoption of a new technique for midline closure. There are possible areas for intervention, to decrease the adoption time for randomised evidence.
Abstract.
Adamina M, Ademuyiwa A, Adisa A, Bhangu AA, Bravo AM, Cunha MF, Emile S, Ghosh D, Glasbey JC, Harris B, et al (2022). The impact of surgical delay on resectability of colorectal cancer: an international prospective cohort study.
COLORECTAL DISEASE,
24(6), 708-726.
Author URL.
2021
Lawday S, Flamey N, Fowler GE, Leaning M, Dyar N, Daniels IR, Smart NJ, Hyde C (2021). Quality of life in restorative versus non-restorative resections for rectal cancer: systematic review.
BJS Open,
5(6).
Abstract:
Quality of life in restorative versus non-restorative resections for rectal cancer: systematic review.
BACKGROUND: Low rectal cancers could be treated using restorative (anterior resection, AR) or non-restorative procedures with an end/permanent stoma (Hartmann's, HE; or abdominoperineal excision, APE). Although the surgical choice is determined by tumour and patient factors, quality of life (QoL) will also influence the patient's future beyond cancer. This systematic review of the literature compared postoperative QoL between the restorative and non-restorative techniques using validated measurement tools. METHODS: the review was registered on PROSPERO (CRD42020131492). Embase and MEDLINE, along with grey literature and trials websites, were searched comprehensively for papers published since 2012. Inclusion criteria were original research in an adult population with rectal cancer that reported QoL using a validated tool, including the European Organization for Research and Treatment of Cancer QLQ-CR30, QLQ-CR29, and QLQ-CR38. Studies were included if they compared AR with APE (or HE), independent of study design. Risk of bias was assessed using the Risk of Bias in Non-Randomized Studies of Interventions (ROBINS-I) tool. Outcomes of interest were: QoL, pain, gastrointestinal (GI) symptoms (stool frequency, flatulence, diarrhoea and constipation), and body image. RESULTS: Nineteen studies met the inclusion criteria with a total of 6453 patients; all papers were observational and just four included preoperative evaluations. There was no identifiable difference in global QoL and pain between the two surgical techniques. Reported results regarding GI symptoms and body image documented similar findings. The ROBINS-I tool highlighted a significant risk of bias across the studies. CONCLUSION: Currently, it is not possible to draw a firm conclusion on postoperative QoL, pain, GI symptoms, and body image following restorative or non-restorative surgery. The included studies were generally of poor quality, lacked preoperative evaluations, and showed considerable bias in the data.
Abstract.
Author URL.
2020
Khan H, Flesher E, Marshman J, Harding A, Bethune R, Lawday S (2020). 'I've got a little list'-the scourge of a surgical junior. A quality improvement project to change the surgical patient list in a district general hospital.
BMJ Open Qual,
9(2).
Abstract:
'I've got a little list'-the scourge of a surgical junior. A quality improvement project to change the surgical patient list in a district general hospital.
BACKGROUND: Junior doctors at the Royal Devon and Exeter Hospital spend hours every day creating and updating patient lists for all surgical specialties on Microsoft Excel spreadsheets. This not only consumes time that should be spent on clinical tasks, it allows for human errors, system errors and patient safety concerns. Our aim was to reduce time spent on the list and reduce the chance for error. METHODS: We measured the time junior doctors spent creating and updating the surgical lists for one specialty, and on-call shifts. Our first Plan-Do-Study-Act (PDSA) cycle was to introduce clinical secretaries; this reduced the time spent by ward teams on the list but had no effect on the on-call team. We then worked with the hospital application developer to adapt software currently used to suit all surgical teams. Once completed, this software was rolled out alongside the existing spreadsheet method with a view to a switch after a transition period. RESULTS: the introduction of clinical secretaries reduced the time spent on the colorectal surgery list from 99.22 min a day to 43.38 min. The on-call team however did not benefit from this intervention. Following the introduction of the new software, the day on-call team time spent on the list changed from 121 min a day to 4.66 min. The night on-call team time changed from 91 min to 7.38 min. CONCLUSION: Reducing the time juniors spend compiling surgical lists has clear benefits to patients with extra time for junior doctors to clerk patients. The use of an automated system removes the chance of error in transcription of blood results. Due to the success of this project, colorectal, upper gastrointestinal, urology, vascular and on-call teams have adopted the new list permanently.
Abstract.
Author URL.
Lawday S, Abraham K, Joyce K, Shellie Z, Shuttleworth R, Dunne R, Nowell G, Corke S, Silver C, Hayward R, et al (2020). Bleeding issue: a quality improvement project on the phlebotomy service at the Royal Devon and Exeter Hospital. BMJ Open Quality, 9(1).
Chapman SJ, Clerc D, Blanco-Colino R, Otto A, Nepogodiev D, Pagano G, Schaeff V, Soares A, Zaffaroni G, Žebrák R, et al (2020). Safety and efficacy of non-steroidal anti-inflammatory drugs to reduce ileus after colorectal surgery.
British Journal of Surgery,
107(2), e161-e169.
Abstract:
Safety and efficacy of non-steroidal anti-inflammatory drugs to reduce ileus after colorectal surgery
Background: Ileus is common after elective colorectal surgery, and is associated with increased adverse events and prolonged hospital stay. The aim was to assess the role of non-steroidal anti-inflammatory drugs (NSAIDs) for reducing ileus after surgery. Methods: a prospective multicentre cohort study was delivered by an international, student- and trainee-led collaborative group. Adult patients undergoing elective colorectal resection between January and April 2018 were included. The primary outcome was time to gastrointestinal recovery, measured using a composite measure of bowel function and tolerance to oral intake. The impact of NSAIDs was explored using Cox regression analyses, including the results of a centre-specific survey of compliance to enhanced recovery principles. Secondary safety outcomes included anastomotic leak rate and acute kidney injury. Results: a total of 4164 patients were included, with a median age of 68 (i.q.r. 57–75) years (54·9 per cent men). Some 1153 (27·7 per cent) received NSAIDs on postoperative days 1–3, of whom 1061 (92·0 per cent) received non-selective cyclo-oxygenase inhibitors. After adjustment for baseline differences, the mean time to gastrointestinal recovery did not differ significantly between patients who received NSAIDs and those who did not (4·6 versus 4·8 days; hazard ratio 1·04, 95 per cent c.i. 0·96 to 1·12; P = 0·360). There were no significant differences in anastomotic leak rate (5·4 versus 4·6 per cent; P = 0·349) or acute kidney injury (14·3 versus 13·8 per cent; P = 0·666) between the groups. Significantly fewer patients receiving NSAIDs required strong opioid analgesia (35·3 versus 56·7 per cent; P < 0·001). Conclusion: NSAIDs did not reduce the time for gastrointestinal recovery after colorectal surgery, but they were safe and associated with reduced postoperative opioid requirement.
Abstract.
2019
STARSurg Collaborative, Nepogodiev D (2019). Challenges of one-year longitudinal follow-up of a prospective, observational cohort study using an anonymised database: recommendations for trainee research collaboratives.
BMC Med Res Methodol,
19(1).
Abstract:
Challenges of one-year longitudinal follow-up of a prospective, observational cohort study using an anonymised database: recommendations for trainee research collaboratives.
BACKGROUND: Trainee research collaboratives (TRCs) have pioneered high quality, prospective 'snap-shot' surgical cohort studies in the UK. Outcomes After Kidney injury in Surgery (OAKS) was the first TRC cohort study to attempt to collect one-year follow-up data. The aims of this study were to evaluate one-year follow-up and data completion rates, and to identify factors associated with improved follow-up rates. METHODS: in this multicentre study, patients undergoing major gastrointestinal surgery were prospectively identified and followed up at one-year following surgery for six clinical outcomes. The primary outcome for this report was the follow-up rate for mortality at 1 year. The secondary outcome was the data completeness rate in those patients who were followed-up. An electronic survey was disseminated to investigators to identify strategies associated with improved follow-up. RESULTS: of the 173 centres that collected baseline data, 126 centres registered to participate in one-year follow-up. Overall 62.3% (3482/5585) of patients were followed-up at 1 year; in centres registered to collect one-year outcomes, the follow-up rate was 82.6% (3482/4213). There were no differences in sex, comorbidity, operative urgency, or 7-day postoperative AKI rate between patients who were lost to follow-up and those who were successfully followed-up. In centres registered to collect one-year follow-up outcomes, overall data completeness was 83.1%, with 57.9% (73/126) of centres having ≥95% data completeness. Factors associated with increased likelihood of achieving ≥95% data completeness were total number of patients to be followed-up (77.4% in centres with 60 patients, p = 0.030), and central versus local storage of patient identifiers (72.5% vs 48.0%, respectively, p = 0.006). CONCLUSIONS: TRC methodology can be used to follow-up patients identified in prospective cohort studies at one-year. Follow-up rates are maximized by central storage of patient identifiers.
Abstract.
Author URL.
Macmillan A, Massey L, Lawday S, Bethune RM (2019). Response to ‘Clinical outcomes and inflammatory response to single-incision laparoscopic (SIL) colorectal surgery: a single-blinded randomized controlled pilot study’. Colorectal Disease, 21(5).
2018
Drake TM, Cheung LK, Gaba F, Glasbey J, Griffiths N, Helliwell RJ, Huq T, Khaw R, Mayes J, Khan S, et al (2018). Association between peri-operative angiotensin-converting enzyme inhibitors and angiotensin-2 receptor blockers and acute kidney injury in major elective non-cardiac surgery: a multicentre, prospective cohort study.
Anaesthesia,
73(10), 1214-1222.
Abstract:
Association between peri-operative angiotensin-converting enzyme inhibitors and angiotensin-2 receptor blockers and acute kidney injury in major elective non-cardiac surgery: a multicentre, prospective cohort study
The peri-operative use of angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers is thought to be associated with an increased risk of postoperative acute kidney injury. To reduce this risk, these agents are commonly withheld during the peri-operative period. This study aimed to investigate if withholding angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers peri-operatively reduces the risk of acute kidney injury following major non-cardiac surgery. Patients undergoing elective major surgery on the gastrointestinal tract and/or the liver were eligible for inclusion in this prospective study. The primary outcome was the development of acute kidney injury within seven days of operation. Adjusted multi-level models were used to account for centre-level effects and propensity score matching was used to reduce the effects of selection bias between treatment groups. A total of 949 patients were included from 160 centres across the UK and Republic of Ireland. From this population, 573 (60.4%) patients had their angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers withheld during the peri-operative period. One hundred and seventy-five (18.4%) patients developed acute kidney injury; there was no difference in the incidence of acute kidney injury between patients who had their angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers continued or withheld (107 (18.7%) vs. 68 (18.1%), respectively; p = 0.914). Following propensity matching, withholding angiotensin-converting enzyme inhibitors or angiotensin-2 receptor blockers did not demonstrate a protective effect against the development of postoperative acute kidney injury (OR (95%CI) 0.89 (0.58–1.34); p = 0.567).
Abstract.
Lawday S, Leaning M, Flannery O, Bethune R (2018). Follow-up of the STOMAMESH Cohort. Annals of Surgery, 268(2).
Nepogodiev D, Walker K, Glasbey JC, Drake TM, Borakati A, Kamarajah S, McLean K, Khatri C, Arulkumaran N, Harrison EM, et al (2018). Prognostic model to predict postoperative acute kidney injury in patients undergoing major gastrointestinal surgery based on a national prospective observational cohort study.
BJS OPEN,
2(6), 400-410.
Author URL.
Lawday S, Ricciardi E, Bethune R, McDermott F (2018). Response to ‘Preoperative geriatric assessment and tailored interventions in frail older patients with colorectal cancer: a randomized controlled trial’. Colorectal Disease, 20(4).
2017
Lawday S, Keogh K, Perkins D, Smart N, Daniels I (2017). Decision-making in the Over-90s with Colorectal Cancer. International Journal of Surgery, 47
(2017). Poster Abstracts. Colorectal Disease, 19(S4), 14-64.