Featured Articles in Jan 2020

Announcements

 

 

Article Title

Welcome New Associate Editor Sanziana Roman of the USA to the World Journal of Surgery

 

URL- https://rdcu.be/bZqaY  

 

 

 

Article Title

Professor Masaki Kitajima (1941–2019): An Unparalleled International Surgeon Diplomat

 

URL- https://rdcu.be/bZqa5

 

 


Barriers to Women Entering Surgical Careers: A Global Study into Medical Student Perceptions

 

 

Author list - I. H. Marks, A. Diaz, M. Keem, Seyedeh-Sanam Ladi-Seyedian, G. S. Philipo, H. Munir, T. I. Pomerani, H. M. Sughayer, N. Peter, C. Lavy, D. C. Chang

 

Abstract

Background

Barriers to female surgeons entering the field are well documented in Australia, the USA and the UK, but how generalizable these problems are to other regions remains unknown.

 

Methods

A cross-sectional survey was developed by the International Federation of Medical Students’ Associations (IFMSA)’s Global Surgery Working Group assessing medical students’ desire to pursue a surgical career at different stages of their medical degree. The questionnaire also included questions on students’ perceptions of their education, resources and professional life. The survey was distributed via IFMSA mailing lists, conferences and social media. Univariate analysis was performed, and statistically significant exposures were added to a multivariate model. This model was then tested in male and female medical students, before a further subset analysis by country World Bank income strata.

 

Results

639 medical students from 75 countries completed the survey. Mentorship [OR 3.42 (CI 2.29–5.12) p = 0.00], the acute element of the surgical specialties [OR 2.22 (CI 1.49–3.29) p = 0.00], academic competitiveness [OR 1.61 (CI 1.07–2.42) p = 0.02] and being from a high or upper-middle-income country (HIC and UMIC) [OR 1.56 (CI 1.021–2.369) p = 0.04] all increased likelihood to be considering a surgical career, whereas perceived access to postgraduate training [OR 0.63 (CI 0.417–0.943) p = 0.03], increased year of study [OR 0.68 (CI 0.57–0.81) p = 0.00] and perceived heavy workload [OR 0.47 (CI 0.31–0.73) p = 0.00] all decreased likelihood to consider a surgical career. Perceived quality of surgical teaching and quality of surgical services in country overall did not affect students’ decision to pursue surgery. On subset analysis, perceived poor access to postgraduate training made women 60% less likely to consider a surgical career [OR 0.381 (CI 0.217–0.671) p = 0.00], whilst not showing an effect in the men [OR 1.13 (CI 0.61–2.12) p = 0.70. Concerns about high cost of training halve the likelihood of students from low and low-middle-income countries (LICs and LMICs) considering a surgical career [OR 0.45 (CI 0.25–0.82) p = 0.00] whilst not demonstrating a significant relationship in HIC or UMIC countries. Women from LICs and LMICs were 40% less likely to consider surgical careers than men, when controlling for other factors [OR 0.59 CI (0.342–1.01 p = 0.053].

 

Conclusion

Perceived poor access to postgraduate training and heavy workload dissuade students worldwide from considering surgical careers. Postgraduate training in particular appears to be most significant for women and cost of training an additional factor in both women and men from LMICs and LICs. Mentorship remains an important and modifiable factor in influencing student’s decision to pursue surgery. Quality of surgical education showed no effect on student decision-making.

 

URL - https://rdcu.be/bZqbm

 

 


Surgical Outcomes in Acute Mesenteric Ischemia: Has Anything Changed Over the Years?

 

 

Author list 

María Asunción Acosta-Mérida, Joaquín Marchena-Gómez, Pedro Saavedra-Santana, José Silvestre-Rodríguez, Manuel Artiles-Armas & María Mar Callejón-Cara

 

 

Abstract

Background

Despite increases in knowledge and advances in the management of acute mesenteric ischemia syndrome (AMI), there have been no significant improvements in mortality in recent years. The objective of this study was to assess the changes in clinical characteristics and surgical outcomes in patients who underwent AMI over time.

 

Methods

A total of 323 consecutive patients who underwent acute mesenteric ischemia at our institution between 1990 and 2015 were examined. The occurrence of significant changes over this 25-year period in demographic data, comorbidity, clinical characteristics, laboratory results, operative findings, etiology of the AMI, and operative mortality were evaluated. The evolution mortality rates for the studied period were analyzed using the additive logistic regression, and the significant effect was determined using the Akaike Information Criterion (AIC).

 

Results

A significant increasing linear trend was observed in recent years in Charlson score values (p = 0.008), antiplatelet drug intake (p < 0.001), use of CT scan (p < 0.001), arterial thrombosis (p < 0.001), and intestinal resection (p = 0.047), while a decreasing linear trend was observed in digoxin intake (p < 0.001), angiography use (p = 0.004), and embolia (p < 0.001). The rest of the parameters did not present changes over time. Regarding the evolution of the adjusted surgical mortality, a significant decrease according the AIC criterion was observed.

 

Conclusions

In recent years, the characteristics of patients with AMI requiring surgery have changed. Changes in operative mortality have also been detected, showing a tendency toward a progressive and significant decrease.

 

URL- https://rdcu.be/bZqb8

 

 


Sentinel Lymph Node Biopsy in Thyroid Cancer

 

 

Author list 

Max B. Albers, Erik Nordenström, Johan Wohlfahrt, Anders Bergenfelz & Martin Almquist

 

Abstract

Background

Prophylactic central neck dissection in patients with papillary thyroid carcinoma is controversial. Sentinel node biopsy might be an adjunct to optimize surgical treatment for these patients. Earlier studies reported inconsistent detection rates and diagnostic value of this technique, and the role of sentinel lymph node biopsy in thyroid cancer needs to be established.

 

Patients and methods

During a single-center prospective interventional study between 2010 and 2017, sentinel lymph node biopsy using 99mTc-nanocolloidal albumin tracer was performed on patients undergoing thyroid surgery for suspected thyroid cancer by fine needle aspiration cytology. All eligible patients without clinical lymph node involvement were invited to participate. Central neck dissection was performed on all patients after the detection of sentinel lymph nodes.

 

Results

Ninety-six patients participated in the study. The detection rates of the sentinel node were 67% and 45% by scintigraphy and intraoperative gamma probe, respectively. The detection rate was not associated with Bethesda score, malignancy, or presence of lymph node metastases. Sensitivity, negative predictive value, and accuracy were 80%, 97%, and 98%, respectively, for the sentinel node to represent the status of lymph node metastasis in the central neck compartment. The false negative rate was 20%.

 

Conclusion

Sentinel lymph node biopsy had a low detection rate and only moderate sensitivity in patients with suspected thyroid carcinoma and is not a useful adjunct to surgery in the context of current treatment concepts.

 

 

URL- https://rdcu.be/bZqbZ

 


Liver Resection Versus Embolization for Recurrent Hepatocellular Carcinoma

 

 

Author list  - Yutaka Midorikawa, Tadatoshi Takayama, Masamichi Moriguchi, Rempei Yagi, Shunsuke Yamagishii, Hisashi Nakayama, Osamu Aramaki, Shintaro Yamazaki, Shingo Tsuji, Tokio Higaki

 

 

Abstract

Background

Despite curative resection, hepatocellular carcinoma (HCC) has a high probability of recurrence. We validated the potential role of liver resection (LR) for recurrent HCC.

 

Methods

Patients with intrahepatic recurrence with up to three lesions were included. We compared survival times of patients undergoing their first LR to those of patients undergoing repeated LR. Then, survival times of the patients who had undergone LR and transcatheter chemoembolization (TACE) for recurrent HCC after propensity score matching were compared.

 

Results

After a median follow-up period of 3.1 years (range, 0.2–16.3), median overall survival times were 6.5 years (95% CI 6.0–7.0), 5.7 years (5.2–6.2), and 5.1 years (4.9–7.3) for the first LR (n = 1234), second LR (n = 273), and third LR (n = 90) groups, respectively. Severe complications frequently occurred in the first LR group (p = 0.059). Operative times were significantly longer for the third LR group (p = 0.012). After the first recurrence, median survival times after one-to-one pair matching were 5.7 years (95% CI 4.5–6.5) and 3.1 years (2.1–3.8) for the second LR group (n = 146) and TACE group (n = 146), respectively (p < 0.001). The median survival time of the third LR group (n = 41) (6.2 years; 95% CI 3.7–NA) was also longer than that of TACE group (n = 41) (3.4 years; 1.8–4.5; p = 0.010) after the second recurrence.

 

Conclusions

Repeated LR for recurrent HCC is the procedure of choice if there are three or fewer tumors.

 

 

URL- https://rdcu.be/bZqbP

 


O2 No Longer the Go2: A Systematic Review and Meta-Analysis Comparing the Effects of Giving Perioperative Oxygen Therapy of 30% FiO2 to 80% FiO2 on Surgical Site Infection and Mortality

 

Author list  - Brianna K. Smith, Ross H. Roberts, Frank A. Frizelle

 

 

Abstract

Objective

To determine the effects of perioperative high (80%) versus low (30%) fraction of inspired oxygen (FiO2) on surgical site infection (SSI) and mortality in adult surgical patients.

 

Background

The routine use of high fraction perioperative oxygen in patients is “standard of care” and recommended by the World Health Organisation; however, whether there is truly any benefit to this therapy has been challenged by some authors. Questions have also been raised about the possibility of harm from oxygen therapy.

 

Method

Randomised control trials comparing high-to-low FiO2 were located by searching MEDLINE, Embase, CENTRAL and Web of Science. The primary outcomes were SSI up to 15 days and up to any time point postoperatively and mortality up to 30 days. The data were analysed using random effects meta-analysis.

 

Results

Twelve studies involving 10,212 participants were included. At 15 days postoperatively, and at the longest point of post-operative follow-up, there was no statistically significant reduction in the risk of SSI when comparing patients who received a perioperative FiO2 of 30% to those with an FiO2 of 80% (RR 1.41, 95% CI 1.00–2.01, p 0.05 and RR 1.23, 95% CI 1.00–1.51, p 0.05). There was no statistically significant difference in mortality between the 30% FiO2 and the 80% FiO2 groups (RR 1.12, 95% CI 0.56–2.22, p 0.76).

 

Conclusion

This meta-analysis showed no statistically significant difference in post-operative SSI or mortality when comparing patients receiving an FiO2 of 80% to those receiving an FiO2 of 30%.

 

 

URL - https://rdcu.be/bZqbA

 


 

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