Jasneet Bhullar

Murine models of gastric carcinogenesis are an in vivo tool essential for understanding the mechanisms of pathogenesis and search of better treatments. Over the years considerable changes in the understanding of the murine models of human gastric cancer have resulted in numerous models being reported in the literature. The gastric cancer transgenic mice and human xenograft heterotopic murine models were reported initially. These were followed by orthotopic tumor models which were found to be more relevant in portraying the human disease process as opposed to heterotopic models. Over time many techniques for making orthotopic gastric murine models were reported, each trying to overcome the drawbacks of the previously reported models. Although all of these models have their advantages and limitations, the latest orthotopic murine models seem to more accurately represent and replicate the human disease process. We discuss the different human gastric cancer murine models, their backgrou...

Gastric Cancer remains one of the leading causes of malignancy related deaths worldwide. There is extensive ongoing research for a better understanding of the gastric cancer and newer treatments. This book summarizes the different relevant topics on gastric cancer in which strides of improvement have been achieved. The currrent statuses and the advancements on different aspects of gastric cancer research, diagnosis, staging and treatments are discussed.

In 2004, A new peculiar subtype of renal cell carcinoma, which later received the name of tubulocystic carcinoma (TCC-RC), was recognized. Though the tumor has distinct macroscopic, microscopic and immunohistochemical features, the tumor was previously considered to have some similarities to various other renal cancers. We did an extensive review of literature using PubMed and CrossRef, which yielded more than 80 cases reported from various parts of the world. We evaluated the epidemiology, tumor presentations, pathological characteristics, treatment, and outcome of TCC-RC.

ABSTRACT ABSTRACT: Gastric cancer is one of the leading causes of malignancy-related deaths worldwide with differences in incidence and treatment patterns geographically. There is extensive ongoing research for a better understanding of the cancer pathology and finding newer treatments. Advancements in basic science research are being translated for improving gastric cancer patient care. This book discusses an extensive array of different topics on gastric cancer in which strides of improvement have been achieved. The contributors of each specialized chapter of the book are leaders in their field and have been recognized for their work globally. This book aims to bring the readers up to date about all aspects of gastric cancer - from basic science research about animal models of gastric cancer, to pathophysiology, staging systems, different adjuvant therapies and surgical treatment options for gastric cancer. The newer treatment options of endoscopic mucosal resections and bursectomy are described in detail. The current statuses, debates and ongoing controversies in addition to the advancements on different aspects of gastric cancer research are discussed. The book is an invaluable resource of information on all aspects of gastric cancer with the latest advancements.

30-day readmissions are a considerable financial burden on medical institutions due to penalties faced from the Centers for Medicaid and Medicare. A retrospective review of 30-day readmissions was performed. The data were subdivided into medical severity-diagnostic related groups 417, 418, and 419, as categorized by the Centers for Medicaid and Medicare. Perioperative variables, diagnostic workup, operative interventions, and postoperative morbidity and outcomes were analyzed. Forty-four (5.9%) readmissions were recorded, of 747 inpatient discharges. The data were further divided into DRGs 417, 418, and 419 with readmission rates of 13.6, 3.6%, and 5.4%, respectively. The highest rate of readmission was within the first 7 days. Etiology was divided into surgical (54.5%) and nonsurgical (45.4%). Patients with major comorbidities had a higher rate of readmission (P < .05). In 45.4% of the readmissions, the cause was found to be nonsurgical. The surgical team was not consulted in 31.8% of the readmissions.

Diverticulitis is a common condition which carries significant morbidity and socioeconomic burden (McGillicuddy et al in Arch Surg 144:1157-1162, 2009). The surgical management of diverticulitis has undergone significant changes in recent years. This article reviews the role of minimally invasive approach in management of complicated diverticulitis, with a focus on recent concepts and advances. A literature review of past 10 years (January 2004 to September 2014) was performed using the electronic database MEDLINE from PubMed which included articles only in English. We identified total of 139 articles, out of which 50 were excluded resulting in 89 full-text articles for review 16 retrospective studies, 7 prospective cohorts, 1 case-control series and 1 systematic review were included. These suggest that urgent surgery is performed for those with sepsis and diffuse peritonitis or those who fail to improve despite medical therapy and/or percutaneous drainage. In addition, 3 randomized control trials: DILALA, LapLAND and the Scandinavian Diverticulitis trial are working towards evaluating whether laparoscopic lavage is safe in management of complicated diverticular diseases. Growing trend toward conservative or minimally invasive treatment modality even in severe acute diverticulitis was noticed. Laparoscopic peritoneal lavage has evolved as a good alternative to invasive surgery, yet clear indications for its role in the management of complicated diverticulitis need to be established. Recent evidence suggests that existing guidelines for optimal management of complicated diverticulitis should be updated. Non-resectional radiographic techniques are likely to play a prominent role in the initial treatment of complicated diverticulitis in the near future.

NOTES : Natural Orifice Transluminal Endoscopic Surgery, is a relatively new advancement of surgery and is still in its evolving state. Increasing interest in this surgery comes from the many advantages and better outcomes that it offers as compared to conventional open or other minimally invasive surgery. The book summarizes the evolution, concept, different types, complications, current status and the challenges of NOTES. We also report our results and experience with a new technique of pure transvesical NOTES, with a safe peritoneal entry and bladder closure.

For the experienced surgeon, the average operative time for a laparoscopic cholecystectomy is less than 1 hour. There has been no study documenting the causes and results of prolonged (longer than 3 hours) surgery. A retrospective study was done of patients who underwent cholecystectomy between January 2003 and December 2007. A total of 3126 cholecystectomies were done. After excluding patients who had a planned open cholecystectomy and patients who had additional laparoscopic surgeries, we identified 70 patients who had a planned laparoscopic cholecystectomy with operative time exceeding 3 hours. Multivariate stepwise logistic regression was performed analyzing the various factors leading to prolonged surgery. Of the 70 patients, ranging in age from 21 to 92 years (mean, 57 years), most (n = 53) were female. Operative time ranged from 3 hours to 6 hours 40 minutes (mean, 3 hours 37 minutes). Emergency:elective admission ratio was 9:5 and acute cholecystitis (n = 40) was the most co...

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