Incidence, Survival Analysis and Future Perspective of Primary Peritoneal Mesothelioma (PPM): A Population-Based Study from SEER Database.

Background: Primary peritoneal mesothelioma (PPM) is a rare and aggressive tumor arising from the visceral and parietal peritoneum. The diagnosis and treatment of PPM are often delayed because of non-specific clinical presentation, and the prognosis is worse. The current study investigated the demographic, clinical, and pathological factors affecting patient prognosis and survival in PPM.

Prognostic Value of Lymph Node Ratio in Cutaneous Melanoma: A Systematic Review.

The prognosis of cutaneous melanoma (CM) is based on the histological characteristics of the primary tumor, such as Breslow depth, ulceration, and mitotic rate. The lymph node ratio (LNR) is the ratio of the involved lymph nodes (LNs) divided by the total number of LNs removed during regional LN dissection. LNR is a prognostic factor for many solid tumors; however, controversies exist regarding CM.

Klatskin Tumor in the Light of ICD-O-3: A Population-Based Clinical Outcome Study Involving 1,144 Patients from the Surveillance, Epidemiology, and End Result (SEER) Database (2001-2012).

Introduction Klatskin tumors (KTs) occur at the confluence of the right and left extrahepatic ducts and are classified based on their anatomical and histological codes in the International Classification of Diseases for Oncology (ICD-O). The second edition of the ICD-O (ICD-O-2) allocated a distinctive histological code to KT, which also included intrahepatic cholangiocarcinoma (CC). This unclear coding may result in ambiguous reporting of the demographic and clinical features of KT.

Clinical outcomes of bypass-first versus endovascular-first strategy in patients with chronic limb-threatening ischemia due to infrageniculate arterial disease.

Background: Chronic limb-threatening ischemia (CLTI), defined as ischemic rest pain or tissue loss secondary to arterial insufficiency, is caused by multilevel arterial disease with frequent, severe infrageniculate disease. The rise in CLTI is in part the result of increasing worldwide prevalence of diabetes, renal insufficiency, and advanced aging of the population. The aim of this study was to compare a bypass-first with an endovascular-first revascularization strategy in patients with CLTI due to infrageniculate arterial disease.

Comparison of surgical incision complete closure versus leaving skin open in wound class IV in emergent colon surgery.

Introduction: Our aim was to compare the effect of techniques of wound closure in the emergent colon surgery with wound class IV.

Methods: Using 2014 the colectomy targeted ACS-NSQIP dataset; we identified patients undergoing emergent colectomy with wound class IV. Comparison of surgical incision complete closure versus leaving the skin open and multivariate logistic regression analyses was performed.

Lower Extremity Ischemia after Abdominal Aortic Aneurysm Repair.

Background: Treatment reality of abdominal aortic aneurysm (AAA) is changing. Up to date, approximately 65% of intact AAA and 30% of ruptured AAA are treated endovascularly. As most comparative studies focus upon mortality and few major complications, some outcomes as lower extremity ischemia (LEI) after invasive AAA repair are often underreported.

Directed postgraduate study result in quantitative improvement in American Board of Surgery In-Training Exam scores.

Background: The collective study habits of 1 group of residents involved in educationally distinct periods of time in a community-based general surgery residency program were evaluated.

Methods: American Board of Surgery In-Training Exam (ABSITE) score results of 31 residents were calculated during 3 distinctive educational time periods: resident independent, self-directed study; resident-directed study with weekly systematic textbook reviews; and faculty-directed study with additional formal basic science and clinical lectures.

Results: Aggregate higher scores were observed when ABSITE results for the directed study period were compared with those observed during the independent study period in mid-level resident years (postgraduate year [PGY] 2 to 4).

Safety of mediastinoscopy in anatomical variations of the mediastinum: the situs inversus syndrome.

Mediastinoscopy has been widely used by thoracic surgeons to evaluate the superior mediastinum since 1959. Large series of mediastinoscopy have been reported with very low morbidity and no mortality. Proper attention to surgical techniques and mediastinal anatomy are essential to maintain the safety of the procedure.