The impact of the COVID-19 pandemic on racial disparities in postoperative outcomes after bariatric surgery.

Background: The COVID-19 pandemic has affected the outcomes and access to elective surgery across the United States. This study hypothesized that preexisting racial and ethnic disparities were exacerbated by the pandemic for bariatric surgery.

Methods: This retrospective cohort study evaluated the outcome disparities in 1,046,578 patients who underwent bariatric surgery from 2016-2019 (before the COVID-19 pandemic) to 2020-2021 (during the COVID-19 pandemic) using the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program database.

Forgoing Preoperative Manometry for Minimally Invasive Hiatal Hernia Repair.

Introduction: Hiatal hernia commonly occurs in adults. Although most patients are asymptomatic, some experience reflux symptoms or dysphagia. These patients are frequently managed with acid suppression and lifestyle changes.

A Comparative Study Of Concurrent Chemo-Radiotherapy With or Without Neoadjuvant Chemotherapy in Treatment of Locally Advanced Non Small Cell Lung Cancer.

Introduction: The standard treatment for unresectable stage III non-small-cell lung cancer (NSCLC) is concurrent chemoradiotherapy. This study was undertaken to evaluate whether induction chemotherapy along with concurrent chemoradiotherapy would result in better tumor control, improved symptom control and any variation in toxicity as compared to concurrent chemoradiotherapy alone.

Patients And Methods: Between February 2015 to September 2016, 25 patients each were randomized to control group, in which they received concurrent chemoradiotherapy with weekly cisplatin 40 mg/m2 intravenous, during chest radiotherapy of 66Gy in 33 fractions for 6.

Emergent robotic versus laparoscopic surgery for perforated gastrojejunal ulcers: a retrospective cohort study of 44 patients.

Background: Perforated gastrojejunal ulcers are a known complication following Roux-en-Y gastric bypass (RYGB) surgery requiring emergent surgical repair. The robotic approach has not been evaluated for emergency general surgery.

Methods: A retrospective cohort study from 2015 to 2019 was performed identifying all patients who underwent repair of perforated gastrojejunal ulcers after RYGB at a single institution.

Robotic Single- and Multisite Cholecystectomy in Children.

Background: Elective cholecystectomy is a high-volume, simple procedure, well suited for the development of a pediatric robotic surgery program. Surgical robot software, by "reversing" the surgeon's hands, simplifies single-site cholecystectomy through a single incision at the umbilicus.

Materials And Methods: Data were reviewed on the first nine children who had robotic cholecystectomy, with the Da Vinci® Surgical System (Intuitive Surgical Inc.

Characterization of anisotropy in viscoelastic properties of intra-abdominal soft tissues.

A portable instrumentation rig is presented for characterizing nonlinear viscoelastic anisotropic response of intra-abdominal organ-tissues. Two linearly independent in-situ experiments are performed at each indentation site on the intra-abdominal organ, by subjecting the organ to 1) normal and 2) tangential displacement stimuli using the above robotic device. For normal indentation experiments, the indenter is ramped into the tissue and held for 10 seconds before sinusoidal indentation stimuli are applied.