Tannic Acid Incorporated Antibacterial Polyethylene Glycol Based Hydrogel Sponges for Management of Wound Infections.

Conventional wound dressings fail to provide features that can assist the healing process of chronic wounds. Multifunctional wound dressings address this issue by incorporating attributes including antibacterial and antioxidant activity, and the ability to enhance wound healing. Herein, polyethylene glycol (PEG)-based antibacterial hydrogel sponge dressings are prepared by a rapid and facile gas foaming method based on an acid chloride/alcohol reaction where tannic acid (TA) is included as a reactant to impart antibacterial efficacy as well as to enhance the mechanical properties of the samples.

COVID-19 infection frequency and clinical course in patients with liver transplantation: Results of a single transplant center in Türkiye.

Objectives: In this paper, it was tried to determine the incidence of COVID-19, course of the disease, and mortality rate in liver transplant patients by evaluating all patients operated on in our center. In addition, the results of liver transplantation performed in our center during the pandemic period were also presented.

Material And Methods: All patients who had undergone liver transplantation in our liver transplant center were questioned about their history of COVID-19 either at their routine controls in the clinic or by phone interview.

Antimicrobial cryogel dressings towards effective wound healing.

Cryogels are macroporous hydrogels that have been widely utilized in a variety of biomedical applications including wound dressings. Cryogels reveal superior mechanical and swelling properties as well as large and interconnected porosity. As traditional hydrogel wound dressings generally show undesirable mechanical and swelling characteristics, cryogels, due to their toughness and superfast swelling, offer an outstanding platform to address the growing number of various types of wounds.

Highly Effective Covalently Crosslinked Composite Alginate Cryogels for Cationic Dye Removal.

Currently, macroporous hydrogels have been receiving attention in wastewater treatment due to their unique structures. As a natural polymer, alginate is used to remove cationic dyes due to its sustainable features such as abundance, low cost, processability, and being environmentally friendly. Herein, alginate/montmorillonite composite macroporous hydrogels (cryogels) with high porosity, mechanical elasticity, and high adsorption yield for methylene blue (MB) were generated by the one-step cryogelation technique.

D2 vs D2 Plus Para-aortic Lymph Node Dissection for Advanced Gastric Cancer.

Objectives: Gastric cancer is a common malignancy worldwide. Effective treatment by interdisciplinary cooperation is important, and surgery still plays an important role.

Material And Methods: In a ten-year period, 355 patients were diagnosed to have gastric cancer.

30-Day Morbidity and Mortality of Bariatric Surgery During the COVID-19 Pandemic: a Multinational Cohort Study of 7704 Patients from 42 Countries.

Background: There are data on the safety of cancer surgery and the efficacy of preventive strategies on the prevention of postoperative symptomatic COVID-19 in these patients. But there is little such data for any elective surgery. The main objectives of this study were to examine the safety of bariatric surgery (BS) during the coronavirus disease 2019 (COVID-19) pandemic and to determine the efficacy of perioperative COVID-19 protective strategies on postoperative symptomatic COVID-19 rates.

High density optical neuroimaging predicts surgeons's subjective experience and skill levels.

Measuring cognitive load is important for surgical education and patient safety. Traditional approaches of measuring cognitive load of surgeons utilise behavioural metrics to measure performance and surveys and questionnaires to collect reports of subjective experience. These have disadvantages such as sporadic data, occasionally intrusive methodologies, subjective or misleading self-reporting.

Bilateral Inguinal Hernia Repair: Robotic TAPP Versus Laparoscopic TEP.

Background: As the advantages of minimally invasive techniques in general surgery have been shown, we prefer laparoscopic total extraperitoneal (LTEP) inguinal hernia repair or robotic transabdominal preperitoneal (RTAPP) inguinal hernia repair in patients diagnosed especially with a bilateral inguinal hernia in our practice. The present study aims to evaluate the early/midterm outcomes and complications in patients who underwent LTEP and RTAPP because of bilateral inguinal hernia.

Materials And Methods: In total, 189 patients underwent inguinal hernia repair between June 2016 and June 2019 in our department.

The attitude of Turkish general surgeons during the COVID-19 pandemic: Results of "general surgery COVID-19 pandemic attitude survey".

Objectives: The whole world is dealing with the COVID-19 pandemic, and healthcare professionals are the most affected group. The aim of this study was to evaluate the knowledge of general surgeons about COVID-19 and understand the attitude and current situation of our colleagues.

Material And Methods: This descriptive study comprised general surgeons working in different parts of Turkey.

Recommendations for bariatric and metabolic surgical operations during the COVID-19 pandemic in Turkey.

The world has been struggling with the COVID-19 virus since December 2019. Turkey has also been battling with the virus since March 2019. While struggling with this unknown virus, we have postponed our new bariatric surgeries like most elective surgery.

Surgical management of digestive system cancers during the coronavirus disease 2019 pandemic: review of general suggestions.

Since December 2019, the world has been battling the COVID-19 pandemic, and health workers are at the forefront of the fight. Surgeons also fulfill their duty; however, elective cases had to be postponed in order to use resources appropriately in the fight against coronavirus. Although benign elective surgical procedures can be postponed to a distant time during this pandemic, surgical interventions for urgent and life-threatening situations are mandatory to perform but the main uncertainty among surgeons is about cancer patients.

Obesity and appendicitis: Laparoscopy versus open technique.

Objectives: The clinical results of obese patients who have undergone open or laparoscopic appendectomy, whether one technique is superior to the other is still not clearly known.In our study, we compared the clinical results of obese patients operated with laparoscopic or open technique for acute appendicitis.

Material And Methods: We performed retrospective analyses of patients operated for acute appendicitis between the dates of July 2016 and July 2019 at Istinye University Faculty of Medicine Bahcesehir Liv Training and Research Hospital and Liv Hospital Ankara.

Recommendations for Trauma and Emergency General Surgery Practice During COVID-19 Pandemic.

COVID-19 is a new disease, based on currently available limited information, older adults and people of any age who have severe underlying medical conditions may be at higher risk for severe illness from COVID-19. People of all age groups are also at risk. Healthcare providers have always been the professionals most exposed to the risk of contracting to any kind of infection due to the nature of their profession.

An electron microscopy study of liver and kidney damage in an experimental model of obstructive jaundice.

Unlabelled: With this experimental study we investigated the consequences of ligation of the common bile duct (CBD) on hepatic cells and on the renal ultrastructure by electron microscopy and also determine the effects after liberation of the ductus joint in order to clarify the mechanisms of renal failure commonly observed in cholestatic liver disease. The study was conducted on 53 Wistar albino rats divided into 4 subgroups. In the comparison group (sham) we proceeded to the simple laparotomy.

Sulfur Chemistry in Polymer and Materials Science.

Sulfur and its functional groups are major players in an area of exciting research taking place in modern polymer and materials science, both in academia and industry. In fact, manifold sulfur-based reactions that are both exceptionally versatile as well as tremendously useful have been implemented, and further utilized for the design and preparation of polymeric materials that lead to a plethora of applications ranging from medicine to optics and nanotechnology to separation science. Hence, within this review, an overview of strategies and developments used over the last 5 years to reinforce the importance of the sulfur functional group in modern polymer and materials science is presented.

Changing Attitudes of Medical Students Regarding Organ Donation from a University Medical School in Turkey.

BACKGROUND Doctors have an important role in increasing the number of organ donors. This study aimed to investigate the changing attitudes of medical students regarding organ donation, from first-year medical students (FYMS) to sixth-year medical students (SYMS) at a university medical school in Turkey. MATERIAL AND METHODS One hundred first-year medical students and 100 sixth-year medical students participated in the study.

Polypeptide-Based Macroporous Cryogels with Inherent Antimicrobial Properties: The Importance of a Macroporous Structure.

Synthetic polypeptide-based macroporous cryogels with inherent antimicrobial properties were prepared for potential water purification applications. Gels were chemically cross-linked through the amine residue of a polycationic polylysine--polyvaline block copolymer with glutaraldehyde as cross-linker under cryogenic conditions. These cryogels exhibited excellent water swelling and highly compressible mechanical properties owing to their macroporous structure.

A rapid and facile preparation of novel macroporous silicone-based cryogels via photo-induced thiol-ene click chemistry.

Novel poly(dimethylsiloxane) based macroporous gels (cryogels) were prepared via a simple and rapid photo-induced thiol-ene click reaction at low temperatures. The cryogels formed were able to float on a water surface and selectively remove oils or organic solvents with excellent recyclability.

Evaluation of gunshot wounds in the emergency department.

Background: This study aimed to evaluate injury patterns of patients admitted to the emergency department with gunshot wounds, results of imaging studies, treatment modalities, outcomes, mortality ratios, and complications.

Methods: A retrospective descriptive study was carried out including a total number of one hundred and forty-two patients admitted to Hacettepe University Emergency Department with gunshot injuries between January 1, 1999 and December 31, 2013. The Glasgow Coma Scale (GCS), Revised Trauma Score (RTS), Injury Severity Score (ISS), and the Trauma and Injury Severity Score (TRISS) probability of survival for penetrating trauma were calculated for all patients.

Admissions of critically ill patients to the ED intensive care unit.

Introduction: Many emergency departments (EDs) have established units capable of providing critical care because of increasing need for critical care, called as ED intensive care unit (EDICU). However, prolonged critical care leads to crowding, resulting in poor quality of care and high mortality rates. We aimed to determine which type of critically ill patients play a main role for crowding in the EDICU, and how to manage these patients.

Evaluation of liver injury in a tertiary hospital: a retrospective study.

Background: Liver is the most frequently injured intraabdominal organ following abdominal trauma. Liver injury in polytraumatized patients can vary from minor contusions to major lacerations and is associated with morbidity and mortality. The objective of this study was to evaluate the outcome of liver injury in polytraumatized patients.

The association of elevated mean platelet volume with the outcome of acute mesenteric ischemia.

Mesenteric ischemia is a life-threatening vascular emergency with high mortality rates. Mean platelet volume (MPV) has been shown to be closely related to platelet activation. We investigated whether MPV was associated with outcome of acute mesenteric ischemia (AMI).

Prospective evaluation of crural repair with and without double-sided mesh reinforcement.

Background: Laparoscopic Nissen fundoplication is gold standard treatment for gastroesophageal reflux disease. We examined the results of laparoscopic Nissen fundoplication with or without double-sided polypropylene mesh.

Patients And Methods: Sixty patients were prospectively evaluated.