Publications by authors named "Hasan Altun"

Purpose: The objective of the study is to evaluate the effects of laparoscopic sleeve gastrectomy (LSG) on mid- to long-term regulation of blood glucose in patients with obesity and type 2 diabetes mellitus (T2DM) MATERIALS AND METHODS : In this prospective and observational single-center study, a total of 234 patients with obesity and a diagnosis of T2DM who underwent LSG between 2015 and 2020 were evaluated. The demographics and laboratory data, consisting of body mass index (BMI), glycosylated hemoglobin (HbA1c%), and fasting plasma glucose (FPG) and total weight loss (TWL%), were compared preoperative and postoperative at 12 and 18 months and annual follow-up for seven consecutive years.

Results: The mean age of 234 patients (female(n)/male(n):191/43) included in the study was 44.

View Article and Find Full Text PDF

Purpose: This study aimed to evaluate the impact of gestational weight gain (GWG) after laparoscopic sleeve gastrectomy (LSG) on maternal and perinatal outcomes according to the Institute of Medicine (IOM) recommendations.

Materials And Methods: A retrospective, multicenter, observational study of pregnant women who had undergone LSG between 2012 and 2021 was conducted. According to the IOM criteria, GWG was grouped as insufficient, appropriate, and excessive.

View Article and Find Full Text PDF

Objectives: The prevalence of obesity and its associated comorbidities are increasing all over the world. Laparoscopic sleeve gastrectomy has become the most common bariatric surgery in the world today, especially in the treatment of Type 2 diabetes mellitus, which is one of the effective surgical methods. The present study aims to investigate the effects on glucose metabolism in patients following laparoscopic sleeve gastrectomy.

View Article and Find Full Text PDF

Obesity is an increasing problem worldwide. Laparoscopic sleeve gastrectomy is gaining popularity. Although it has unique complications such as leakage, bleeding, and stenosis, it is a reliable procedure.

View Article and Find Full Text PDF

Obesity is associated with nonalcoholic fatty liver disease which is one of the most common causes of chronic liver disease. FibroScan is a noninvasive tool for liver stiffness measurement and controlled attenuation parameter to evaluate liver steatosis and fibrosis. We aimed to demonstrate the effect of laparoscopic sleeve gastrectomy on liver steatosis and fibrosis.

View Article and Find Full Text PDF

Aim: We aimed to evaluate the effect of pregnancy timing after laparoscopic sleeve gastrectomy (LSG) on maternal and fetal outcomes.

Methods: Women with LSG were stratified into two groups with surgery-to-conception intervals of ≤ 18 months (early group) or > 18 months (late group). Only the first delivery after LSG was included in this study.

View Article and Find Full Text PDF

Background/aims: Helicobacter pylori infection is very common in Eastern countries. Little is known about the impact this infection has on bariatric surgery outcomes. This retrospective cohort study conducted on obese Turkish adults who underwent sleeve gastrectomy at a single center aimed to determine the prevalence of H.

View Article and Find Full Text PDF

Laparoscopic sleeve gastrectomy (LSG) is gaining popularity worldwide. This retrospective cohort study evaluated the outcomes of a large cohort of patients with obesity who underwent LSG in a Bariatric Center of Excellence. All consecutive patients who underwent LSG between July 2013 and April 2016 were identified retrospectively.

View Article and Find Full Text PDF

Background: Single-port surgery has recently become popular, however, many surgeons have to use additional ports during the surgery due to difficulties.

Objectives: We performed two-port MCAP (with an additional port using a multi-channel device through the umbilicus) without a suspension suture in a group of patients. We compared the results of this technique to the LC and SILC techniques.

View Article and Find Full Text PDF

Introduction: The reduction in the preferences for sweet and fat containing tastes in obese patients who underwent bariatric surgery was relatively well shown; however, there are only limited data on the changes in the sensitivity of other tastes like sour, salty, and bitter.

Methods: We investigated the changes in gustatory sensitivity of 52 morbidly obese patients (M/F, 22/30; age range, 19-60 years; BMI range, 32.5-63.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

Background: Olfactory abilities of the patients are known to be altered by eating and metabolic disorders, including obesity. There are only a number of studies investigating the effect of obesity on olfaction, and there is limited data on the changes in olfactory abilities of morbidly obese patients after surgical treatment. Here we investigated the changes in olfactory abilities of 54 morbidly obese patients (M/F, 22/32; age range 19-57 years; body mass index (BMI) range 30.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

Pneumatosis cystoides intestinalis (PCI) is a rare disease. It was first described by Du Vernoy in 1793 during a cadaver dissection. Air-filled bubble-like lesions are located in the submucosa or the subserosa of the digestive tract.

View Article and Find Full Text PDF

Purpose: Staple-line leak is a life-threatening complication of laparoscopic sleeve gastrectomy. Reinforcement materials have been reported to lower the risk of staple-line bleeding, but their effects on leak risk have not been elucidated. The aim of this study was to compare the effects of 2 supportive techniques on burst pressures in sleeved gastrectomy specimens.

View Article and Find Full Text PDF

Objective: Many surgeons face difficulties during single-incision laparoscopic cholecystectomy (SILC) surgery and are forced to use an additional port. We compared the results of a technique that we developed with SILC.

Material And Methods: Fifty-four patients who were diagnosed with chronic cholelithiasis were prospectively randomized and divided into two groups.

View Article and Find Full Text PDF

Background/aims: Although laparoscopic Nissen fundoplication is the gold standard in the surgical treatment of gastroesophageal reflux disease, it may cause troublesome complications like dysphagia. In this study, we demonstrated the effect of narrowed segment length on early dysphagia in patients.

Materials And Methods: Forty-one patients who underwent laparoscopic Nissen fundoplication by a single surgeon between January 2007 and November 2008 were reviewed.

View Article and Find Full Text PDF

Background/aims: This study was performed to clarify the best insertion route of double-balloon enteroscopy and to report the characteristics and proportions of small bowel pathologies detected by double-balloon enteroscopy in our patients with obscure gastrointestinal bleeding.

Materials And Methods: Between January 2006 and December 2009, 75 patients with obscure gastrointestinal bleeding were enrolled into this study. The procedure was performed by oral route in 60 patients, anal route in 5 patients and both in 10 patients.

View Article and Find Full Text PDF

Eosinophilic esophagitis is an inflammatory condition of esophagus. It is generally seen in childhood and young population. Men are more commonly affected than women.

View Article and Find Full Text PDF

Purpose: Laparoscopic techniques have gained wide clinical acceptance in surgical practice today. The laparoscopic approach has been established as the technique of choice for elective splenectomies performed on normal sized spleens. The purpose of this study was to evaluate the outcome of patients undergoing laparoscopic splenectomy (LS) at the TOBB University of Economics and Technology (ETU) Hospital and Kecioren Training and Research Hospital.

View Article and Find Full Text PDF

Background: This study was designed to evaluate the effects of ethyl pyruvate (EP) on wound healing in primary colonic anastomoses in intraperitoneal sepsis.

Methods: Standard left colon resection and end-to-end anastomosis were performed on 30 rats. They were grouped as control (C)--no further treatment; sepsis (S)--received 2 mL Escherichia coli (ATCC 25922) intraperitoneally (IP), and after 5 hours, standard resection and anastomosis were performed; or sepsis-group treated with EP (S-EP)--received 2 mL E coli IP, after 5 hours, standard resection and anastomosis were performed and treated with EP 50 mg/kg IP for 7 days.

View Article and Find Full Text PDF

Cecal diverticulum of colon is a relatively rare and benign condition in the western world. The reported frequency is approximately 1 in 300 appendectomies. They are usually asymptomatic but it may cause inflammatory, hemorrhagic, or perforatory complications.

View Article and Find Full Text PDF