Publications by authors named "Michal R Janik"

Introduction: The increasing prevalence of obesity worldwide has raised concerns about its impact on surgical outcomes across various procedures. Laparoscopic cholecystectomy (LC), a common surgical intervention for benign gallbladder disease, is no exception. The relationship between obesity and LC outcomes remains complex and merits further investigation.

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Introduction: Laparoscopic sleeve gastrectomy (LSG) has gained prominence as a therapeutic option for obesity and metabolic diseases. The choice of staple line reinforcement technique in LSG remains a subject of debate, particularly concerning postoperative bleeding complications.

Aim: The aim of this retrospective analysis is to assess the influence of different staple line reinforcement techniques on the occurrence of bleeding complications LSG.

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Background: The published literature presents conflicting results regarding the impact of bariatric surgery on the incidence of colorectal cancer. There are important new studies that have addressed this question with longer follow-up.

Objective: To investigate the effect of bariatric surgery on the risk of developing colorectal cancer in patients with obesity.

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Background: The MBSAQIP has been used to evaluate risk and create risk models. Previous studies have determined what complications matter most.

Study Design: This study was a registry-based analysis of patients who underwent laparoscopic Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) between January 1, 2015, and December 31, 2019, at centers participating in MBSAQIP.

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Background: Thus far, no data are available on decision regret about sleeve gastrectomy (SG), particularly in patients who experienced perioperative complications. This study aimed to assess whether patients with postoperative complications regret their decision to undergo laparoscopic SG more than patients with an uneventful postoperative course.

Methods: The study group comprised patients with complications after laparoscopic SG (cases).

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Introduction: Hemorrhagic complications after laparoscopic sleeve gastrectomy (LSG) are among the most common adverse events. The last 10 min of LSG are essential in terms of hemostasis.

Aim: To assess the blood pressure profile in the last 10 min of LSG in patients who experienced hemorrhagic complications after laparoscopic sleeve gastrectomy.

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Introduction: Patient's satisfaction after weight loss surgery is in the research spotlight. However, there are still no quantitative data regarding whether patients regret their decision to undergo laparoscopic sleeve gastrectomy (SG).

Objectives: The present study aimed to evaluate whether patients regret their decision to undergo SG 5 years after surgery.

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Background: Information on the safety of outpatient sleeve gastrectomy is sparse.

Objective: This study aimed to assess the safety of sleeve gastrectomy as a day case surgery.

Setting: University health network, United States.

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Background: The exact impact of smoking within the last 12 months on the safety outcome of sleeve gastrectomy and Roux-Y gastric bypass is not well known. The study aimed to assess the effects of smoking on 30-day surgical outcomes.

Methods: Preoperative characteristics and outcomes from the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program dataset 2015-2018 were selected for all patients who underwent primary sleeve gastrectomy or Roux-Y gastric bypass.

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Introduction: The prevalence of obesity is increasing according to the World Health Organization. Furthermore, global aging is increasing, especially in developed countries in Europe. Whether bariatric surgery should be performed in elderly people is still controversial.

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Background: Hiatal hernia repair is an essential step to reduce the incidence of gastroesophageal acid reflux disease in patients undergoing sleeve gastrectomy. The safety of addition, a hiatal hernia repair to sleeve gastrectomy, is a critical question.

Objectives: Our study aimed to assess the safety of concurrent hiatal hernia repair and sleeve gastrectomy based on Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program data.

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Introduction: Despite the clinical benefits of bariatric surgery, some patients have experienced disappointment with their weight loss. Setting realistic expectations is the key to success.

Aim: To develop a specific prediction calculator to estimate the expected body mass index (BMI) at 1 year after laparoscopic sleeve gastrectomy (LSG).

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Introduction: Nowadays laparoscopic right hemicolectomy is widely accepted as the standard of care for benign and malignant colon disease. There are wide variations among laparoscopic techniques. One of the most discussed topics is the ileocolic anastomosis.

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Purpose: Our goal was to present the experience of bariatric surgeons with medical tourism on a global scale.

Materials And Methods: An online-based survey was sent to bariatric surgeons worldwide regarding surgeon's country of practice, number and types of bariatric procedures performed, number of tourists treated, their countries of origin, reasons for travel, follow-up, and complications.

Results: Ninety-three responders performed 18,001 procedures in 2017.

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Introduction: The advancement of minimal invasive techniques pushed the age limit for patients qualified for bariatric surgery.

Aim: The aim of the study was to evaluate the safety and effectiveness of laparoscopic sleeve gastrectomy (LSG) in a cohort of patients aged 60 years or more, compared with a group of matched controls below 40 years old.

Methods: The medical records of 856 patients were analyzed.

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Introduction: As obesity has become a major health problem in Poland and bariatric procedures are the best way of treatment, an increasing trend has been observed in Polish bariatric surgery for the last decade.

Aim: Our purpose was to provide an updated overview of the bariatric surgical procedures performed in Polish institutions in comparison to the situation in Europe as well as to analyze the trends in Polish bariatric surgery over the last decades.

Material And Methods: A questionnaire about the number and type of bariatric procedures performed in 2016 was sent to all Polish surgical departments.

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Introduction: The prevalence of obesity in Poland and worldwide is constantly rising. High effectiveness of bariatric surgery has been proven in literature. It is recommended that bariatric procedures should be done by highly qualified surgeons with the appropriate, up-to-date medical equipment.

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Introduction: As the population ages, there is more interest in bariatric surgery for older patients. There are controversies regarding the safety and effectiveness of surgical weight loss in this population.

Aim: The aim of this study was to compare the safety and efficacy of Roux-en-Y gastric bypass in patients over the age of 60 years with younger patients.

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Introduction: Obesity is a serious lifestyle disease with various comorbidities and an augmented risk of cancer. Laparoscopic sleeve gastrectomy (LSG) has recently become the most popular bariatric procedure worldwide. While the cost-effectiveness is a major healthcare providers' concern, the point of histological exam of each resected tissue may be questioned.

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Background: Smoking cessation is often associated with weight gain. This study was conducted to verify whether it affects outcomes of bariatric surgery.

Objectives: To present cigarette consumption among patients after bariatric surgery in a long-term follow-up and to evaluate whether smoking cessation impacts weight loss.

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Background: An increase in the prevalence of obesity and longer life expectancy has resulted in an increased number of candidates over the age of 60 who are pursuing a bariatric procedure.

Objective: The aim of this study was to assess the safety of laparoscopic Roux-Y gastric bypass (LRYGB) compared to laparoscopic sleeve gastrectomy (LSG) in patients aged 60 years or older.

Setting: University Hospital, United States METHODS: Preoperative characteristics and 30-day outcomes from the MBSAQIP 2015 were selected for all patients aged 60 years or older who underwent a LSG or LRYGB.

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Background: The HospitAl stay, Readmission, and Mortality rates (HARM) score is a quality indicator that is easily determined from routine administrative data. However, the HARM score has not yet been applied to patients undergoing bariatric surgery.

Objective: The aims of the present study were to adjust the HARM score to the bariatric population and to validate the ability of the modified HARM score to serve as an inexpensive tool to measure the quality of bariatric surgery.

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Introduction: Age is considered as a risk factor in bariatric surgery. The observation was made on the basis of results from studies where patients underwent different type of surgery, but laparoscopic sleeve gastrectomy (LSG) was not among them. It is necessary to reevaluate the association of age with adverse events in the group of patients after LSG.

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Introduction: Gallbladder specimens are routinely sent for histopathological examination after cholecystectomy in order to rule out the presence of unexpected pathological findings.

Aim: To establish the overall incidence of unexpected pathological findings in patients who underwent laparoscopic cholecystectomy for symptomatic gallbladder disease and determine whether the macroscopic appearance of the gallbladder in ultrasound examination could be a valid method for identifying patients with gallbladder malignancy.

Material And Methods: A retrospective study was conducted between 2013 and 2015.

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Objective: The aim was to compare clinical outcomes of patients treated with totally robotic Roux-en-Y gastric bypass (TRRYGB) with those treated with the different laparoscopic Roux-en-Y gastric bypass (LRYGB) techniques. The clinical benefit of the robotic approach to bariatric surgery compared to the standard laparoscopic approach is unclear. There are no studies directly comparing outcomes of TRRYGB with different LRYGB techniques.

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