Publications by authors named "Alkhamesi N"

Article Synopsis
  • - Robotic surgery procedures are on the rise globally, and numerous innovative robotic platforms are being developed for imminent approval in the US within the next couple of years.
  • - A review by the SAGES Robotic Platforms Working Group highlighted twenty robotic systems in various stages of development, detailing their components, features, regulatory status, and target markets.
  • - The introduction of these new robotic platforms could enhance minimally invasive surgery, foster innovation, and potentially lower costs for patients, indicating strong future growth in robotic surgical technology.
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Background: Benign biliary strictures can have a significant negative impact on patient quality of life. There are several modalities which can be utilized with the goal of stricture resolution. These techniques include balloon dilatation, placement of multiple plastic stents and more recently, the use of metal stents.

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Inflammatory bowel disease (IBD) affects all ages and backgrounds, and many individuals require surgical intervention during their disease course. The adoption of laparoscopic techniques in this patient population has been slow, including intracorporeal anastomosis (ICA). The aim of our study was to determine if ICA was feasible and safe in patients with IBD undergoing laparoscopic right hemicolectomy (LRHC).

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Minimally invasive surgery has been demonstrated to have clear advantages in colon cancer management, with a decrease in the morbidity and mortality associated with surgery. With the introduction of intracorporeal anastomosis (ICA), the entire mesenteric dissection and division is performed under vision laparoscopically and may lead to superior lymph node harvest. The aim of our study is to evaluate lymph node harvest in patients undergoing totally laparoscopic right hemicolectomy with ICA compared to laparoscopic-assisted right hemicolectomy with extracorporeal anastomosis (ECA).

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Background: Owing to important differences in surgical technique, laparoscopic right colectomy with intracorporeal (ICA) compared to extracorporeal (ECA) anastomotic technique may result in improved patient outcomes. We aimed to compare both techniques according to incisional hernias and other pertinent perioperative characteristics, post-operative complications, and oncologic quality markers.

Methods: All adult patients undergoing laparoscopic right colectomies between 2015 and 2020 at a single institution were included.

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Article Synopsis
  • The study investigates how the designation of bariatric centers impacts clinical outcomes for patients needing repeat abdominal surgery after initial bariatric procedures.
  • Researchers analyzed data from 3301 Ontario residents who had primary bariatric surgeries between 2010 and 2017, focusing on complications, mortality, readmission, and hospital stay length.
  • Findings indicate no significant differences in complications or mortality between designated bariatric and non-bariatric centers, though complex hernia surgeries showed better outcomes at bariatric centers.
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Laparoscopic intracorporeal continuous suturing is being employed in a growing number of minimally invasive procedures. However, there is a lack of adequate bench models for gaining proficiency in this complex task. The purpose of this study was to assess a novel simulation model for running suture.

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Background: Indocyanine green, near infrared, fluorescence angiography (ICG-FA) is increasingly adopted in colorectal surgery for intraoperative tissue perfusion assessment to reduce anastomotic leakage rates. However, the economic impact of this intervention has not been investigated. This study is a cost analysis of the routine use of ICG-FA in colorectal surgery from the hospital payer perspective.

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Cross-border healthcare is an international agreement for the provision of out of country healthcare for citizens of partnered countries. The European Union (EU) has established itself as a world leader in cross-border healthcare. During the Coronavirus disease of 2019 (COVID-19) pandemic, the EU used this system to maximize utilization of resources.

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Preoperative malnutrition in patients with colorectal cancer is associated with several postoperative consequences and poorer prognosis. Currently, there is a lack of a universal screening tool to assess nutritional status, and intervention to treat preoperative malnutrition is often neglected. This review summarizes and compares preoperative screening and interventional tools to help providers optimize malnourished patients with colorectal cancer for surgery.

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Background: With a growing bariatric population, a better understanding of the patient and health provider-related factors associated with later reoperations could help providers enhance follow-up and develop reliable benchmarking targets.

Objectives: To investigate the patient and provider-related risk factors associated with abdominal reoperations in bariatric patients.

Setting: This is a cohort study using data from a large clinical registry of Ontario bariatric patients between 2010 and 2016.

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Background: Correct identification of the surgical tissue planes of dissection is paramount at the operating room, and the needed skills seem to be improved with realistic dynamic models rather than mere still images. The objective is to assess the role of adding video prequels to still images taken from operations on the precision and accuracy of tissue plane identification using a validated simulation model, considering various levels of surgeons' experience.

Methods: A prospective observational study was conducted involving 15 surgeons distributed to three equal groups, including a consultant group [C], a senior group [S], and a junior group [J].

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Background: Colonoscopy is a technically challenging procedure. The colonoscope is prone to forming loops in the colon, which can lead patient discomfort and even perforation. We hypothesized that expert endoscopists use techniques to avoid loop formation, identify and straighten loops earlier, and thus exert less force.

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Background: Same-day surgery is an increasingly utilized and cost-effective strategy to manage common surgical conditions. However, many institutions limit ambulatory surgical services to only healthy individuals. There is also a paucity of data on the safety of same-day discharge among high-risk patients.

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Background: Bariatric surgery in older patients is safe and effective. Current guidelines do not endorse age limits for surgery; however, older patients may encounter difficulties with access given perceived risks. This study compares the adjusted probability of failing to receive bariatric surgery between older (≥ 60 years) and younger (< 60 years) patients referred to a publicly funded program.

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The World Health Organization declared a pandemic when coronavirus disease 2019 (COVID-19) started to sweep the globe. Growing concerns for the safety of health care workers was raised when up to 80% of people with COVID-19 showed mild or no symptoms at all. Some surgical procedures will be inevitable during the pandemic, and proper safety measures must be in place to avoid transmission risks.

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Background: Few studies have investigated the potential impact of robotic assistance on cognitive ergonomics during advanced minimally invasive surgery. The purpose of this study was to assess the impact of robotic assistance on mental workload and downstream cognitive performance in surgical trainees.

Methods: Robot-naïve trainees from general surgery, urology and gynaecology, stratified by specialty and level of training, were randomised to either laparoscopic surgery (LS) or robotic-assisted laparoscopic surgery (RALS) and performed a time-limited, complex laparoscopic suturing task after watching a 5-min instructional video.

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Background: The aim of this review is to evaluate and summarize the current strategies used in the management of colonoscopic perforations as well as propose a modern treatment algorithm.

Methods: Articles published between January 2004 and January 2019 were screened. A total of 167 reports were identified in combined literature search, of which 61 articles were selected after exclusion of duplicate and unrelated articles.

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Colorectal cancer is ranked as the fourth malignant cause of mortality. With the tremendous revolution in the modern medical techniques, minimally invasive approaches have been incorporated into rectal surgery. The effectiveness of surgical procedures is usually measured by a combination of qualitative (quality of life) and quantitative (years of life) measures, while the costs should reflect the use of different resources that were involved in delivering the medical care and they are affected by several factors, including length of hospital stay.

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Background: Both laparoscopy and endoscopy are image-based procedures, which are less intuitive than traditional open surgery and require extensive training to reach adequate proficiency. Currently, there is lack of understanding as to how the skills in one image-based procedure translate to another, such as endoscopy to laparoscopy and vice versa. The aim of our study was to explore the relationship between endoscopic and laparoscopic skills using a Fundamentals of Laparoscopic Surgery (FLS) trainer, a traditional virtual reality endoscopic trainer and a "desk-top" endoscopic physical simulator.

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Recent literature has raised concerns regarding the risk of adverse psychiatric events among bariatric surgery patients. However, the relationship between weight loss therapy and psychiatric outcomes is confounded by baseline psychosocial characteristics in observational studies. To understand the impact of bariatric surgery on the risk of adverse mental health outcomes, we conducted a systematic review and meta-analysis of randomized controlled trials that compared surgical and non-surgical treatments and assessed mental health quality of life (QoL).

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Background: Adhesions are a known cause of morbidity and mortality following abdominal surgery. Multiple approaches have been evaluated to prevent or minimize the occurrence of adhesions. Administration of aerosolized heparin and hyaluronic acid is an effective method to prevent postoperative adhesions whether they are used independently or in synergism.

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