Marja A. Boermeester

Dr. Marja A. Boermeester

Department of Surgery, Academisch Medisch Centrum Universiteit van Amsterdam | AMC, Amsterdam, The Netherlands
orcid

Research Focus & Metrics

Academic Career Length

34Years (1993-Present)

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

Representative Publications

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1 June 2008 in Quality and Safety in Health Care
Verified
Journal Article
Open access
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EVE N de Vries
E N de Vries
MRM A Ramrattan
M A Ramrattan
SSS M Smorenburg
S M Smorenburg
DGD J Gouma
D J Gouma
MBMarja A. Boermeester
Marja A. Boermeester
Introduction: Adverse events in hospitals constitute a serious problem with grave consequences. Many studies have been conducted to gain an insight into this problem, but a general overview of the data is lacking. We performed a systematic review of the literature on in-hospital adverse events. Methods: A formal search of Embase, Cochrane and Medline was performed. Studies were reviewed independently for methodology, inclusion and exclusion criteria and endpoints. Primary endpoints were incidence of in-hospital adverse events and percentage of preventability. Secondary endpoints were adverse event outcome and subdivision by provider of care, location and type of event. Results: Eight studies including a total of 74 485 patient records were selected. The median overall incidence of in-hospital adverse events was 9.2%, with a median percentage of preventability of 43.5%. More than half (56.3%) of patients experienced no or minor disability, whereas 7.4% of events were lethal. Operation- (39.6%) and medication-related (15.1%) events constituted the majority. We present a summary of evidence-based interventions aimed at these categories of events. Conclusions: Adverse events during hospital admission affect nearly one out of 10 patients. A substantial part of these events are preventable. Since a large proportion of the in-hospital events are operation- or drug-related, interventions aimed at preventing these events have the potential to make a substantial difference.

11 November 2010 in New England Journal of Medicine
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Journal Article
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EVEefje N. de Vries
Eefje N. de Vries
HPHubert A. Prins
Hubert A. Prins
RCRogier M.P.H. Crolla
Rogier M.P.H. Crolla
AOAdriaan J. Den Outer
Adriaan J. Den Outer
GAGeorge van Andel
George van Andel
MBMarja A. Boermeester
Marja A. Boermeester
Adverse events in patients who have undergone surgery constitute a large proportion of iatrogenic illnesses. Most surgical safety interventions have focused on the operating room. Since more than half of all surgical errors occur outside the operating room, it is likely that a more substantial improvement in outcomes can be achieved by targeting the entire surgical pathway.

22 August 2007 in JAMA
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Journal Article
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OROddeke van Ruler
Oddeke van Ruler
CMCecilia W. Mahler
Cecilia W. Mahler
KBKimberly R. Boer
Kimberly R. Boer
ERE. Ascelijn Reuland
E. Ascelijn Reuland
HGHein G. Gooszen
Hein G. Gooszen
FGfor the Dutch Peritonitis Study Group
for the Dutch Peritonitis Study Group
Research from JAMA — Comparison of On-Demand vs Planned Relaparotomy Strategy in Patients With Severe Peritonitis — A Randomized Trial — ContextIn patients with severe secondary peritonitis, there are 2 surgical treatment strategies following an initial emergency laparotomy: planned relaparotomy and relaparotomy only when the patient's condition demands it (“on-demand”). The on-demand strategy may reduce mortality, morbidity, health care utilization, and costs. However, randomized trials have not been performed.ObjectiveTo compare patient outcome, health care utilization, and costs of on-demand and planned relaparotomy.Design, Setting, and PatientsRandomized, nonblinded clinical trial at 2 academic and 5 regional teaching hospitals in the Netherlands from November 2001 through February 2005. Patients had severe secondary peritonitis and an Acute Physiology and Chronic Health Evaluation (APACHE-II) score of 11 or greater.InterventionRandom allocation to on-demand or planned relaparotomy strategy.Main Outcome MeasuresThe primary end point was death and/or peritonitis-related morbidity within a 12-month follow-up period. Secondary end points included health care utilization and costs.ResultsA total of 232 patients (116 on-demand and 116 planned) were randomized. One patient in the on-demand group was excluded due to an operative diagnosis of pancreatitis and 3 in each group withdrew or were lost to follow-up. There was no significant difference in primary end point (57% on-demand [n = 64] vs 65% planned [n = 73]; P = .25) or in mortality alone (29% on-demand [n = 32] vs 36% planned [n = 41]; P = .22) or morbidity alone (40% on-demand [n = 32] vs 44% planned [n = 32]; P = .58). A total of 42% of the on-demand patients had a relaparotomy vs 94% of the planned relaparotomy group. A total of 31% of first relaparotomies were negative in the on-demand group vs 66% in the planned group (P <.001). Patients in the on-demand group had shorter median intensive care unit stays (7 vs 11 days; P = .001) and shorter median hospital stays (27 vs 35 days; P = .008). Direct medical costs per patient were reduced by 23% using the on-demand strategy.ConclusionPatients in the on-demand relaparotomy group did not have a significantly lower rate of death or major peritonitis-related morbidity compared with the planned relaparotomy group but did have a substantial reduction in relaparotomies, health care utilization, and medical costs.Trial Registrationhttp://isrctn.org Identifier: ISRCTN51729393

1 May 2016 in Clinical Gastroenterology and Hepatology
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Journal Article
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UAUsama Ahmed Ali
Usama Ahmed Ali
YIYama Issa
Yama Issa
JHJulia C. Hagenaars
Julia C. Hagenaars
OBOlaf J. Bakker
Olaf J. Bakker
HGHarry van Goor
Harry van Goor
MBMarja A. Boermeester
Marja A. Boermeester

14 December 2018 in World Journal of Emergency Surgery
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Journal Article
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Massimo SartelliMassimo Sartelli
Massimo Sartelli
XGXAVIER GUIRAO
XAVIER GUIRAO
Timothy Craig HardcastleTimothy Craig Hardcastle
Timothy Craig Hardcastle
YKYoram Kluger
Yoram Kluger
MBMarja A. Boermeester
Marja A. Boermeester
Fausto CatenaFausto Catena
Fausto Catena
Skin and soft-tissue infections (SSTIs) encompass a variety of pathological conditions that involve the skin and underlying subcutaneous tissue, fascia, or muscle, ranging from simple superficial infections to severe necrotizing infections. SSTIs are a frequent clinical problem in surgical departments. In order to clarify key issues in the management of SSTIs, a task force of experts met in Bertinoro, Italy, on June 28, 2018, for a specialist multidisciplinary consensus conference under the auspices of the World Society of Emergency Surgery (WSES) and the Surgical Infection Society Europe (SIS-E). The multifaceted nature of these infections has led to a collaboration among general and emergency surgeons, intensivists, and infectious disease specialists, who have shared these clinical practice recommendations.

21 January 2020 in JAMA
Verified
Journal Article
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YIYama Issa
Yama Issa
MKMarinus A. Kempeneers
Marinus A. Kempeneers
MBMarco J. Bruno
Marco J. Bruno
PFPaul Fockens
Paul Fockens
JPJan-Werner Poley
Jan-Werner Poley
FGfor the Dutch Pancreatitis Study Group
for the Dutch Pancreatitis Study Group
Importance For patients with painful chronic pancreatitis, surgical treatment is postponed until medical and endoscopic treatment have failed. Observational studies have suggested that earlier surgery could mitigate disease progression, providing better pain control and preserving pancreatic function. Objective To determine whether early surgery is more effective than the endoscopy-first approach in terms of clinical outcomes. Design, Setting, and Participants The ESCAPE trial was an unblinded, multicenter, randomized clinical superiority trial involving 30 Dutch hospitals participating in the Dutch Pancreatitis Study Group. From April 2011 until September 2016, a total of 88 patients with chronic pancreatitis, a dilated main pancreatic duct, and who only recently started using prescribed opioids for severe pain (strong opioids for ≤2 months or weak opioids for ≤6 months) were included. The 18-month follow-up period ended in March 2018. Interventions There were 44 patients randomized to the early surgery group who underwent pancreatic drainage surgery within 6 weeks after randomization and 44 patients randomized to the endoscopy-first approach group who underwent medical treatment, endoscopy including lithotripsy if needed, and surgery if needed. Main Outcomes and Measures The primary outcome was pain, measured on the Izbicki pain score and integrated over 18 months (range, 0-100 [increasing score indicates more pain severity]). Secondary outcomes were pain relief at the end of follow-up; number of interventions, complications, hospital admissions; pancreatic function; quality of life (measured on the 36-Item Short Form Health Survey [SF-36]); and mortality. Results Among 88 patients who were randomized (mean age, 52 years; 21 (24%) women), 85 (97%) completed the trial. During 18 months of follow-up, patients in the early surgery group had a lower Izbicki pain score than patients in the group randomized to receive the endoscopy-first approach group (37 vs 49; between-group difference, −12 points [95% CI, −22 to −2];P = .02). Complete or partial pain relief at end of follow-up was achieved in 23 of 40 patients (58%) in the early surgery vs 16 of 41 (39%)in the endoscopy-first approach group (P = .10). The total number of interventions was lower in the early surgery group (median, 1 vs 3;P < .001). Treatment complications (27% vs 25%), mortality (0% vs 0%), hospital admissions, pancreatic function, and quality of life were not significantly different between early surgery and the endoscopy-first approach. Conclusions and Relevance Among patients with chronic pancreatitis, early surgery compared with an endoscopy-first approach resulted in lower pain scores when integrated over 18 months. However, further research is needed to assess persistence of differences over time and to replicate the study findings. Trial Registration ISRCTN Identifier:ISRCTN45877994