Percutaneous cholecystostomy in elderly patients with acute cholecystitis: Factors influencing mortality, morbidity, and length of hospital stay.

Background: Acute cholecystitis (AC) is increasingly common and imposes a burden on healthcare systems, particularly in the elderly population. While laparoscopic cholecystectomy (LC) is the definitive treatment, percutaneous cholecystostomy (PC) is often preferred based on various factors. The treatment of elderly patients requires a multidisciplinary approach that carefully assesses surgical risks due to age-related changes and comorbidities.

Risk factors for the development of interstitial lung disease following severe COVID-19 pneumonia and outcomes of systemic corticosteroid therapy: 3-month follow-up.

Background: We aimed to evaluate the pulmonary involvement status, its related factors, and pulmonary function test (PFT) results in the first month follow-up in patients who were discharged for severe Covid-19 pneumonia, and to assess the efficacy of corticosteroid treatment on these parameters in severe pulmonary involvement patients.

Methods: We retrospectively analyzed all consecutive patients who applied to our COVID-19 follow-up clinic at the end of the first month of hospital discharge. Functional and radiological differences were compared after 3 months of corticosteroid treatment in severe pulmonary involvement group.

Scalable, flexible carbon fiber electrode thread arrays for three-dimensional probing of neurochemical activity in deep brain structures of rodents.

We developed a flexible "electrode-thread" array for recording dopamine neurochemicals from a lateral distribution of subcortical targets (up to 16) transverse to the axis of insertion. Ultrathin (∼10 μm diameter) carbon fiber (CF) electrode-threads (CFETs) are clustered into a tight bundle to introduce them into the brain from a single-entry point. The individual CFETs splay laterally in deep brain tissue during insertion due to their innate flexibility.

Scalable, flexible carbon fiber electrode thread arrays for three-dimensional spatial profiling of neurochemical activity in deep brain structures of rodents.

We developed a flexible "electrode-thread" array for recording dopamine neurochemical activity from a lateral distribution of subcortical targets (up to 16) transverse to the axis of insertion. Ultrathin (∼ 10 µm diameter) carbon fiber (CF) electrode-threads (CFETs) are clustered into a tight bundle to introduce them into the brain from a single entry point. The individual CFETs splay laterally in deep brain tissue during insertion due to their innate flexibility.

Wear and Service Life of 3-D Printed Polymeric Gears.

Plastic gears are mostly used in the textile, food, and automotive industries due to their silent operation, corrosion resistance, and light and cheap advantages. Plastic gears are generally manufactured by injection molding or hobbing methods. The excess costs of the molds used to produce parts in injection molding and the problems of wastes that occur during production in hobbing lead companies to additive manufacturing, which is an alternative application.

A comparison of patients who have appendectomy during the COVID-19 pandemic period with the period before the pandemic.

Background: This study aims to compare the waiting and operating times of the patients who applied to our hospital with the diagnosis of acute appendicitis (AA) during the pandemic, how the process was managed in terms of AA and other data of the patient compared to the pre-pandemic period.

Methods: A retrospective cohort analysis was performed among patients who were hospitalized in the Fatih Sultan Mehmet Training and Research Hospital General Surgery Clinic with a pre-diagnosis of AA. For this purpose, two groups were formed.

Effectiveness of local anesthetic application methods in postoperative pain control in laparoscopic cholecystectomies; a randomised controlled trial.

Background: Laparoscopic cholecystectomy is a minimally invasive procedure that causes pain originating from parietal and visceral peritoneum. Many studies have been conducted to improve postoperative pain management and comfort of patients. Various methods such as local anesthetic injection (LAI) at trocar access points, intraperitoneal local anesthetic injection (IPLA), pneumoperitoneum pressure reduction, transversus abdominis plane block (TAPB), and reducing the number of trocars used during the operation were attempted to reduce postoperative pain.

An unusual presentation of Ewing sarcoma mimicking Guillain-Barré syndrome in a 17-years-old male.

The management of a patient admitted to the emergency department with symptoms of Guillain-Barre syndrome (GBS), including paraplegia, who was subsequently diagnosed with Ewing sarcoma (ES) and spinal cord compression using MRI is discussed here. Pathological report confirmed the diagnosis of ES. The patient underwent immediate neurosurgery due to rapid progression of paraplegia.

Clinical approach to patients admitted to the emergency room due to acute cholecystitis during the COVID-19 pandemic and percutaneous cholecystostomy experience.

Background: Acute cholecystitis (AC), a common complication of gallstones, is responsible for a significant part of emergency applications, and cholecystectomy is the only definitive treatment method for AC. Early cholecystectomy has many reported advantages. Operation-related morbidity and mortality have increased during the COVID-19 pandemic.

Effective use of CT by surgeons in acute appendicitis diagnosis.

Background: Acute appendicitis (AA) still maintains its prominence among general surgical emergencies, and the risk of developing AA is 8.6% for men and 6.7% for women.

Fallopian tube herniation from trocar-site after laparoscopic appendectomy.

Trocar site hernias are a type of incisional hernias and may occur within a variable time shift after surgery. A mean incidence of 1.85% was reported, and the first trocar site hernia was narrated by Maio et al.

Early results of comparison of polypropylene mesh and 75% resorbable mesh (monofilament polypropylene and poly-L-lactic acid (PLLA) mesh) for laparoscopic total extraperitoneal (TEP) inguinal hernia repair.

Objective: Laparoscopic totally extraperitoneal (TEP) hernia repair has become increasingly widespread. Faster recovery than conventional open methods shortens the return to work. Polypropylene (PP) mesh is still in use in hernia surgery because it is an inexpensive and easily accessible patch.

Strangulated inguinal hernia accompanied by paratesticular leiomyosarcoma.

Sarcomas that arise from the spermatic cord constitute 2.1% of soft tissue sarcomas and are observed at a rate of 1% to 2% in the genitourinary system. A 74-year-old patient presented at the emergency department with complaints of groin pain and swelling persisting for 3 days.

The antibacterial effect of peritoneal fluid in experimental peritonitis.

Background: In our study, the effects of peritoneal fluid on some Gram-negative and Candida albicans in experimental peritonitis rats were studied. The primary objective of the present study was to understand the effect of peritoneal fluid on microorganisms causing intra-abdominal infections.

Methods: Twenty male Sprague-Dawley rats weighing between 250 and 300 g were used in the study.

Spontaneous rupture of the splenic artery aneurysm: a rare clinical presentation of acute abdomen.

Splenic artery aneurysms are very rare causes of acute abdomen but are important to recognize since they carry high rate of mortality when ruptured. The aim of this study was to present a middle aged man with sudden onset of abdominal pain. Being previously on steroid treatment due to sarcoidosis, the patient developed hypovolemic shock during work-up in diagnostic imaging and went on emergency laparatomy.

Should appendectomy be performed laparoscopically? Clinical prospective randomized trial.

Objective: Laparoscopic appendectomy (LA) has been described in 1983, and its superiority over open appendectomy (OA) is still being debated. Currently, there is no agreement on the advantages of LA. Postoperative pain is reported to be lower along with a faster return to normal activities in LA.

[A rare cause of small intestinal obstruction: Spontaneous strangulated trans-omental hernia].

Internal herniation is a very rare condition which can cause small bowel obstruction. Trans-omental hernias are an infrequent form of internal herniation and can be seen without a history of trauma and previous abdominal surgery. An 85-year-old male patient without a history of abdominal surgery or trauma was admitted to the emergency service with severe abdominal pain and vomiting.

Difficulties of bariatric surgery after abdominoplasty.

During laparoscopy, the main problems of patients who have undergone previous abdominoplasty are inadequate pneumoperitoneum secondary to fibrosis and reconstructed anatomic landmarks for trocar placement. In this study, we present our laparoscopic bariatric experience in two patients with previous abdominoplasty. The procedures were a laparoscopic sleeve gastrectomy and a robotic Roux-en-Y gastric bypass.

Pneumoperitoneum with subcutaneous emphysema after percutaneous endoscopic gastrostomy.

Percutaneous endoscopic gastrostomy is a safe way for enteral nutrition in selected patients. Generally, complications of this procedure are very rare but due to patients general health condition, delayed diagnosis and treatment of complications can be life threatening. In this study, we present a PEG-related massive pneumoperitoneum and subcutaneous emphysema in a patient with neuro-Behçet.

The effect of the endoscopist on the wait-time for colorectal cancer surgery.

Objective: The effect of the specialty of physicians who perform endoscopy on preoperative wait-time of colorectal cancer patients was evaluated.

Material And Methods: Data from 86 patients who have been operated with a diagnosis of colorectal cancer from January 2011-February 2013 regarding age, sex, tumor location, colonoscopy date, surgery date, the expertise and institution of the endoscopist were retrospectively examined. The time between colonoscopy and surgery was accepted as the pre-operative wait time (PWT).

Effects of intra-abdominal pressure increase on intestinal ischemia and bacterial translocation in experimental sepsis model.

Objective: To investigate the safety of laparoscopic intervention for diagnosis and treatment at 8 mm Hg pressure in one-hour period on acute peritonitis related intra-abdominal sepsis model.

Methods: In this study, we included 32 female Wistar-Albino rats, weighing 250 +/- 20 g, and divided them into 4 groups. This study was conducted in Istanbul University Experimental Medical Research Institution (DETAE) laboratory from April to May 2009.

Comparison of repair techniques in rat duodonal perforations: simple closure, simple closure and omentoplasty, and fibrin tissue adhesive.

Background: We compared three repair techniques, namely, simple closure and omentoplasty, simple closure alone, and fibrin tissue adhesive, in the treatment of rat duodenal perforations induced in the postpyloric region.

Methods: Thirty male Sprague-Dawley rats (210-240 g) were included. Under ketamine and ether anesthesia, duodenal perforations of 2 mm were induced in all rats in the postpyloric region.

Influence of omentectomy on peritoneal defense mechanisms in an experimental model of intra-abdominal infection.

Background/aim: The omentum has an important role as part of peritoneal defense mechanisms. The aim of this study is to show the bactericidal activity of peritoneal fluid and the role of the omentum as a peritoneal defense mechanism in experimental animals with intra-abdominal infections.

Methods: 40 male Spraque-Dawley rats weighing between 250 and 300 g were used in this study.

[STAGED ABDOMINAL REPAIR (STAR) PROCEDURES IN OUR CLlNIC].

Aim: In this study we assessed the results of staged abdominal repair (STAR) applications in our clinic.

Methods: Retrospective analysis ofsix cases who were operated by staged abdominal repair (STAR) between December 1998-1January 2002 were assessed according to operation indications, type of operation, presentation ofthe complications and mortality.

Results: The initial operations for two ischemic bowel disease cases were right hemicolectomy + end ileostomy + mucous fistula and partial small bowel resection + right hemicolectomy + ileotransversostomy.

[Importance of source control in secondary peritonitis].

Aims: In this study we discussed retrospectively secondary peritonitis patients, surgical treatment modalities and their effectiveness in our clinic.

Materials & Methodology: 91 patients were operated due to diffuse peritonitis between December 1998 through July 2001 in our clinic were analysed by age, sex, etiology of peritonitis, treatment modalities, morbidity and mortality.

Results: 32 patients were female (35.