GLORIA

GEOMAR Library Ocean Research Information Access

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    In: British Journal of Surgery, Oxford University Press (OUP), Vol. 106, No. 2 ( 2019-01-08), p. e103-e112
    Abstract: The World Health Organization (WHO) Surgical Safety Checklist has fostered safe practice for 10 years, yet its place in emergency surgery has not been assessed on a global scale. The aim of this study was to evaluate reported checklist use in emergency settings and examine the relationship with perioperative mortality in patients who had emergency laparotomy. Methods In two multinational cohort studies, adults undergoing emergency laparotomy were compared with those having elective gastrointestinal surgery. Relationships between reported checklist use and mortality were determined using multivariable logistic regression and bootstrapped simulation. Results Of 12 296 patients included from 76 countries, 4843 underwent emergency laparotomy. After adjusting for patient and disease factors, checklist use before emergency laparotomy was more common in countries with a high Human Development Index (HDI) (2455 of 2741, 89·6 per cent) compared with that in countries with a middle (753 of 1242, 60·6 per cent; odds ratio (OR) 0·17, 95 per cent c.i. 0·14 to 0·21, P & lt; 0·001) or low (363 of 860, 42·2 per cent; OR 0·08, 0·07 to 0·10, P & lt; 0·001) HDI. Checklist use was less common in elective surgery than for emergency laparotomy in high-HDI countries (risk difference −9·4 (95 per cent c.i. −11·9 to −6·9) per cent; P & lt; 0·001), but the relationship was reversed in low-HDI countries (+12·1 (+7·0 to +17·3) per cent; P & lt; 0·001). In multivariable models, checklist use was associated with a lower 30-day perioperative mortality (OR 0·60, 0·50 to 0·73; P & lt; 0·001). The greatest absolute benefit was seen for emergency surgery in low- and middle-HDI countries. Conclusion Checklist use in emergency laparotomy was associated with a significantly lower perioperative mortality rate. Checklist use in low-HDI countries was half that in high-HDI countries.
    Type of Medium: Online Resource
    ISSN: 0007-1323 , 1365-2168
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 2006309-X
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    In: BJS Open, Oxford University Press (OUP), Vol. 3, No. 3 ( 2019-06), p. 403-414
    Type of Medium: Online Resource
    ISSN: 2474-9842 , 2474-9842
    URL: Issue
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 2902033-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    In: British Journal of Surgery, Oxford University Press (OUP), Vol. 109, No. 10 ( 2022-09-09), p. 995-1003
    Abstract: There is a substantial gap in provision of adequate surgical care in many low- and middle-income countries. This study aimed to identify the economic burden of unmet surgical need for the common condition of appendicitis. Methods Data on the incidence of appendicitis from 170 countries and two different approaches were used to estimate numbers of patients who do not receive surgery: as a fixed proportion of the total unmet surgical need per country (approach 1); and based on country income status (approach 2). Indirect costs with current levels of access and local quality, and those if quality were at the standards of high-income countries, were estimated. A human capital approach was applied, focusing on the economic burden resulting from premature death and absenteeism. Results Excess mortality was 4185 per 100 000 cases of appendicitis using approach 1 and 3448 per 100 000 using approach 2. The economic burden of continuing current levels of access and local quality was US $92 492 million using approach 1 and $73 141 million using approach 2. The economic burden of not providing surgical care to the standards of high-income countries was $95 004 million using approach 1 and $75 666 million using approach 2. The largest share of these costs resulted from premature death (97.7 per cent) and lack of access (97.0 per cent) in contrast to lack of quality. Conclusion For a comparatively non-complex emergency condition such as appendicitis, increasing access to care should be prioritized. Although improving quality of care should not be neglected, increasing provision of care at current standards could reduce societal costs substantially.
    Type of Medium: Online Resource
    ISSN: 0007-1323 , 1365-2168
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2022
    detail.hit.zdb_id: 2006309-X
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    In: Surgical Endoscopy, Springer Science and Business Media LLC, Vol. 32, No. 8 ( 2018-08), p. 3450-3466
    Abstract: Appendicitis is the most common abdominal surgical emergency worldwide. Differences between high- and low-income settings in the availability of laparoscopic appendectomy, alternative management choices, and outcomes are poorly described. The aim was to identify variation in surgical management and outcomes of appendicitis within low-, middle-, and high-Human Development Index (HDI) countries worldwide. Methods This is a multicenter, international prospective cohort study. Consecutive sampling of patients undergoing emergency appendectomy over 6 months was conducted. Follow-up lasted 30 days. Results 4546 patients from 52 countries underwent appendectomy (2499 high-, 1540 middle-, and 507 low-HDI groups). Surgical site infection (SSI) rates were higher in low-HDI (OR 2.57, 95% CI 1.33–4.99, p  = 0.005) but not middle-HDI countries (OR 1.38, 95% CI 0.76–2.52, p  = 0.291), compared with high-HDI countries after adjustment. A laparoscopic approach was common in high-HDI countries (1693/2499, 67.7%), but infrequent in low-HDI (41/507, 8.1%) and middle-HDI (132/1540, 8.6%) groups. After accounting for case-mix, laparoscopy was still associated with fewer overall complications (OR 0.55, 95% CI 0.42–0.71, p   〈  0.001) and SSIs (OR 0.22, 95% CI 0.14–0.33, p   〈  0.001). In propensity-score matched groups within low-/middle-HDI countries, laparoscopy was still associated with fewer overall complications (OR 0.23 95% CI 0.11–0.44) and SSI (OR 0.21 95% CI 0.09–0.45). Conclusion A laparoscopic approach is associated with better outcomes and availability appears to differ by country HDI. Despite the profound clinical, operational, and financial barriers to its widespread introduction, laparoscopy could significantly improve outcomes for patients in low-resource environments. Trial registration: NCT02179112.
    Type of Medium: Online Resource
    ISSN: 0930-2794 , 1432-2218
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2018
    detail.hit.zdb_id: 1463171-4
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 5
    In: British Journal of Surgery, Oxford University Press (OUP), Vol. 111, No. 6 ( 2024-06-12)
    Abstract: Identification of patients at high risk of surgical-site infections may allow surgeons to minimize associated morbidity. However, there are significant concerns regarding the methodological quality and transportability of models previously developed. The aim of this study was to develop a novel score to predict 30-day surgical-site infection risk after gastrointestinal surgery across a global context and externally validate against existing models. Methods This was a secondary analysis of two prospective international cohort studies: GlobalSurg-1 (July–November 2014) and GlobalSurg-2 (January–July 2016). Consecutive adults undergoing gastrointestinal surgery were eligible. Model development was performed using GlobalSurg-2 data, with novel and previous scores externally validated using GlobalSurg-1 data. The primary outcome was 30-day surgical-site infections, with two predictive techniques explored: penalized regression (least absolute shrinkage and selection operator (‘LASSO’)) and machine learning (extreme gradient boosting (‘XGBoost’)). Final model selection was based on prognostic accuracy and clinical utility. Results There were 14 019 patients (surgical-site infections = 12.3%) for derivation and 8464 patients (surgical-site infections = 11.4%) for external validation. The LASSO model was selected due to similar discrimination to extreme gradient boosting (AUC 0.738 (95% c.i. 0.725 to 0.750) versus 0.737 (95% c.i. 0.709 to 0.765)), but greater explainability. The final score included six variables: country income, ASA grade, diabetes, and operative contamination, approach, and duration. Model performance remained good on external validation (AUC 0.730 (95% c.i. 0.715 to 0.744); calibration intercept −0.098 and slope 1.008) and demonstrated superior performance to the external validation of all previous models. Conclusion The ‘Global Surgical-Site Infection’ score allows accurate prediction of the risk of surgical-site infections with six simple variables that are routinely available at the time of surgery across global settings. This can inform the use of intraoperative and postoperative interventions to modify the risk of surgical-site infections and minimize associated harm.
    Type of Medium: Online Resource
    ISSN: 0007-1323 , 1365-2168
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2024
    detail.hit.zdb_id: 2006309-X
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 6
    In: Biology of Blood and Marrow Transplantation, Elsevier BV, Vol. 24, No. 3 ( 2018-03), p. S310-S311
    Type of Medium: Online Resource
    ISSN: 1083-8791
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2018
    detail.hit.zdb_id: 3056525-X
    detail.hit.zdb_id: 2057605-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 7
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 37, No. 15_suppl ( 2019-05-20), p. e16547-e16547
    Abstract: e16547 Background: African American (AA) patients with metastatic castrate-resistant prostate cancer (mCRPC) represent a high-risk population with higher mortality. Recent data suggested that abiraterone acetate (AbA) is more effective in AA in comparison to white patients. There are limited data regarding enzalutamide (Enz) use in AAs. Here, we report the outcomes of (AbA) and (Enz) in AA patients with mCRPC at our center. Methods: A retrospective chart review included AA patients who had a diagnosis of mCRPC and were prescribed AbA and/or Enz at KUMC from 09-01-2008 through 09-01-2018. Patients were divided into two groups: those who started with AbA (abiraterone group) and those who started with Enz (enzalutamide group). Baseline characteristics were compared between the two groups using Fisher’s exact test for categorical variables and the Wilcoxon rank-sum test for continuous variables. The primary outcome was progression-free survival (PFS) on AbA and Enz. PFS was measured from the time of starting either of the two medications to the time of formal relapse, defined by relapse that required therapy change or prostate-cancer-related death. A stepwise Cox proportional-hazard model was used to adjust for potential confounders. Results: During the study period, 28 AA patients with mCRPC received AbA and/or Enz. Twenty-two patients received AbA first, while six patients received Enz first. There were no significant differences in the baseline characteristics between the two groups. Median PFS for the abiraterone group was 24.3 months, while it was 11.7 months for the enzalutamide group, Log-rank test p-value 0.04). After adjusting for potential confounders, the hazard ratio of progression remained significant, favoring the abiraterone group, HR: 0.11, p-value 0.009. Median PFS on AbA after progression on previous Enz was 5.7 months, while it was 4.5 months for Enz after progression on previous AbA, p-value 0.2. Conclusions: In this single-center retrospective study, AA patients with mCRPC who were started on AbA rather than Enz had longer PFS. More studies are needed to understand the best sequence of the two medications in this population.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2019
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 8
    Online Resource
    Online Resource
    Kezana LLC FZ ; 2015
    In:  Journal of the Royal Medical Services Vol. 22, No. 1 ( 2015-03), p. 62-68
    In: Journal of the Royal Medical Services, Kezana LLC FZ, Vol. 22, No. 1 ( 2015-03), p. 62-68
    Type of Medium: Online Resource
    ISSN: 2078-8703 , 2078-8711
    Language: Unknown
    Publisher: Kezana LLC FZ
    Publication Date: 2015
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 9
    In: Blood, American Society of Hematology, Vol. 134, No. Supplement_1 ( 2019-11-13), p. 1402-1402
    Abstract: Background: Mutations in the nucleophosmin (NPM1) gene are associated with better responses to chemotherapy and improved survival among acute myeloid leukemia (AML) patients. However, older AML patients (≥ 60 years old) with NPM1 mutation have worse survival outcomes than younger patients ( & lt;60 years old). This may be attributed to more adverse biologic features (frequent complex karyotype, FLT3 mutations) in addition to lower odds to receive intensive curative chemotherapy due to co-morbidities. We sought to compare the outcomes of older NPM1 mutated AML patients with younger NPM1 mutated patients after exclusions of patients with adverse-risk per ELN 2017 criteria. We also compared their genomic mutation profile and gene expression utilizing the Beat AML dataset. Methods: We queried the Beat AML dataset, supported in part by the Leukemia & Lymphoma Society and the OHSU Knight Cancer Institute, for pts with NPM1 gene mutations who did not have adverse-risk ELN 2017 (poor cytogenetic profile or mutations in FLT3, TP53 or ASXL1). Descriptive statistics described baseline characteristics and responses. Kaplan-Meier with log-rank test was used for survival analysis. DNA mutation data were obtained from the exome sequencing and analyzed using the beat AML data viewer (Vizome). RNA exome sequencing data were downloaded. Differential expression of raw count RNA-Seq and gene set enrichment was done using R via limma and ClusterProfiler packages. Results: Among 562 unique patients in the Beat AML umbrella trial, there were 81 patients with newly diagnosed NPM1 mutated AML after exclusion of patients with ELN 2017 adverse-risk category. Among these patients there was 49 older patients (≥ 60 years old) and 32 younger patients ( & lt;60 years old). 39 (77.6%) in the older group received intensive induction chemotherapy and 30 patients (93.7%) in the younger group. 29 (59.1%) patients achieved complete morphologic responses in the older patient group compared to 28 (84.4%) in the younger patient group (OR 0.2, P=0.009). Median overall survival in the older patient group was 20.1 months compared to 25.4 months in the younger group (HR 0.52, P=0.08). Exome sequencing data were available for 43 and 30 patients from the older and younger group respectively. There was a median of 6.5 (2-20) and 7 (2-19) mutations in the older and younger group respectively (P=0.78). After exclusion of the benign mutations and variant of unknown significance, the median number of mutations was 4 in both group (P=0.28). Both groups shared only 24 (3.9%) of the gene mutations while there were 334 unique gene mutations in the older group and 262 in the younger group. Most common gene mutations were DNMT3a, TET2, NRAS, WT1, and PTPN11 with frequencies are shown (Figure 1). RNA sequencing data was available for 26 patients from the older group and 18 patients from the younger group. We explored the gene expression profile of the top 1000 differentially expressed genes in both groups after adjustment. There was distinctive clustering of the gene expression profile between the two groups (Figure 2). Gene set enrichment analysis identified multiple immune-related pathways among the highly enriched gene sets in both groups but with different functions in the two groups. There was significant gene set enrichment in the TGFβ signaling in the older patient group which is associated with immune suppression and microenvironment modulation. While the younger group showed significant enrichment in the TNFa, IL17, PI3K-AKT signaling which are associated with inflammation. Conclusion: Older AML patients with NPM1 mutations, and no adverse risk features, had lower rate of complete responses and a trend towards a worse survival compared to younger patients. Whole exome sequencing did not show increased mutational burden. However, 96% of the mutated genes were different between the two groups as were the gene expression profiles. Gene set enrichment analysis showed contrasting enriched immune-related pathways between both groups. The immunosuppressive TGFβ signaling gene set were significantly enriched in the older group while the inflammatory TNFa, IL17, PI3K-AKT signaling gene sets were significantly enriched in the younger group. Older AML patient with NPM1 mutations have distinctive genomic landscape compared to the younger patient which may explain in part the worse clinical outcomes in the absence of other adverse risk features. Disclosures Lin: Jazz Pharmaceuticals: Honoraria; Pfizer: Membership on an entity's Board of Directors or advisory committees.
    Type of Medium: Online Resource
    ISSN: 0006-4971 , 1528-0020
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Hematology
    Publication Date: 2019
    detail.hit.zdb_id: 1468538-3
    detail.hit.zdb_id: 80069-7
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 10
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 37, No. 15_suppl ( 2019-05-20), p. TPS3165-TPS3165
    Abstract: TPS3165 Background: Mutations in p53 contribute to tumor progression. A rational approach is to destabilize mutant (m) p53. The group at the University of Kansas Cancer Center screened compounds that suppress m p53 in a preclinical model. Luciferase-based reporter assay identified statins as suppressors of m p53 expression. In vitro validation assay demonstrated atorvastatin (A) suppressed m p53 level and cell growth selectively; and depletion of mevalonic acid lead to degradation of m p53. These effects were limited to mutations in the conformation of p53, while wild-type and DNA contact mutations were not as sensitive to statin-induced degradation of p53. M p53 xenograft model confirmed that A could suppress tumor growth at a concentration that can decrease LDL level. The primary objective of this trial is to determine if A decreases the level of conformational m p53. The secondary objective is to assess the effects of A on Ki-67 and caspase-3 in conformational m p53 tumors. Methods: This is an open-label, window of opportunity pilot trial to see if A given for 1 to 4 weeks at a dose of 80 mg/day is sufficient to reduce the levels of conformational m p53 in the tumor tissues. Subjects with new diagnosis of malignancy with a planned surgical therapy, and subjects with previously treated AML, in between treatment regimens, are eligible. Tissues from solid tumors, and bone marrow or peripheral blood samples from AML will be used to screen for m p53 by immunohistochemistry (IHC). Subjects will receive A at 80 mg/day po for 1 to 4 weeks. Pharmacokinetics at pre-dose and 1-hour post-dose on Day 1 and on the day of surgery will be done. Mutational analysis using exome sequencing technique will be done on m p53. Using IHC, the amount of p53 in pre-treatment and post-treatment samples will be measured and compared simultaneously. The levels of Ki67 and caspace-3 will be tested and compared between pre-treatment and post-treatment samples in subjects with conformational m p53, between conformational and non-conformational m p53, and in wild-type p53 tumors. The trial is actively enrolling subjects. The results of this trial will determine further investigations on the role of atorvastatin in tumors with p53 mutations in a placebo-controlled, randomized trial. Clinical trial information: NCT03560882.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2019
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...