Vibrational spectra and natural bond orbital analysis of organic crystal L-prolinium picrate.

Vibrational spectral analysis and quantum chemical computations based on density functional theory (DFT) have been performed on the organic crystal L-prolinium picrate (LPP). The equilibrium geometry, various bonding features and harmonic vibrational wavenumbers of LPP have been investigated using B3LYP method. The calculated molecular geometry has been compared with the experimental data.

Laparoscopic resection of exocrine carcinoma in central and distal pancreas results in a high rate of radical resections and long postoperative survival.

Background: The role of laparoscopic resection in patients with pancreatic cancer remains to be clarified, because previous reports have not clearly defined oncologic outcomes. The objective of the present study was to investigate this question with the rate of R0 resection and long-term survival as endpoints.

Methods: This retrospective observational study included prospectively collected data from 40 patients operated laparoscopically with curative intent for exocrine pancreatic malignancies identified among 250 consecutive patients undergoing laparoscopic pancreatic operations since 1997.

Single-Incision Laparoscopic Liver Resection for Colorectal Metastasis through Stoma Site at Time of Reversal of Diversion Ileostomy: A Case Report.

Minimally invasive surgical techniques for liver tumors are gaining increased acceptance as an alternative to traditional resections by laparotomy. In this article we describe a laparoscopic liver resection of a metastatic lesion in a patient primarily operated for colorectal cancer. The resection was conducted as a single port procedure through the stoma aperture at time of reversal of the diversion ileostomy.

The anatomical and surgical consequences of right colectomy for cancer.

Background: Current practice when performing right colectomy for cancer is to divide the feeding vessels for the right colon on the right side of the superior mesenteric vein.

Objective: This study aims to show that arterial stumps can be visualized through an early postoperative CT and analyze their anatomical and surgical characteristics.

Design: This study presents a retrospective review of prospective data.

Comparative evaluation of laparoscopic liver resection for posterosuperior and anterolateral segments.

Background: Totally laparoscopic liver resection of lesions located in the posterosuperior segments is reported to be technically challenging. This study aimed to define whether these technical difficulties affect the surgical outcome.

Methods: A total of 220 patients underwent laparoscopic liver resection during 244 procedures from August 1998 to December 2010.

Effect of TachoSil patch in prevention of postoperative pancreatic fistula.

Background: Postoperative pancreatic fistula (POPF) is a severe complication after pancreatic resections. The aim was to assess if application of TachoSil® patch could reduce incidence of postoperative fistulas after laparoscopic distal pancreatic resections.

Methods: This is a retrospective study of prospectively collected data after enucleations and distal pancreatic resections.

[Laparoscopic distal pancreatectomy for neuroendocrine pancreatic tumors--initial experience].

Introduction: Although the first successful laparoscopic distal pancreatectomy in Martin was recorded in 2005, after five years we have successfully established this unique surgical procedure. The aim of this paper is to present two successful laparoscopic distal pancreatectomies in patients with neuroendocrine tumors of the distal pancreas.

Materials And Methods: Laparoscopic distal pancreatic resection is currently challenging many pancreatobiliary surgeons.

Integration between a percutaneous implant and the porcine small bowel.

Inflammatory bowel diseases, cancer or trauma may require removal of all or part of the intestines, leaving the patient with a need to wear external stoma appliances for collection of bowel contents. By connecting the small bowel to a percutaneous port, equipped with a sealing lid, a fully continent and leak proof stoma can be created without a need for permanently wearing stoma appliance. The prerequisites for a connection between a permanent, transabdominal implant and a visceral organ are largely unexplored.

Impact of body mass index on outcomes of laparoscopic adrenal surgery.

Objective: The aim of this article is to define the relationship between body mass index (BMI) and outcomes of laparoscopic adrenalectomy.

Method: A total of 172 patients were eligible for inclusion in the study. The patients were divided into 3 groups: group I, normal weight; group II, overweight; and group III, obesity.

Laparoscopic liver surgery: new frontiers.

Laparoscopic liver resection (LHR) has shown classical advantages of minimally invasive surgery over open counterpart. In spite of introduction in early 1990's only few centres worldwide adapted LHR to routine practice. It was due to considerable technical challenges and uncertainty about oncologic outcomes.

Is laparoscopic repeat hepatectomy feasible? A tri-institutional analysis.

Background: A laparoscopic approach has not been advocated for repeat hepatectomy on a large scale. This report analyzes the experience of 3 institutions pioneering laparoscopic repeat liver resection (LRLR). The aim of this study was to evaluate the feasibility, safety, oncologic integrity, and outcomes of LRLR.

Laparoscopic resection of colorectal liver metastases: surgical and long-term oncologic outcome.

Objective: To analyze the immediate and long-term outcome after laparoscopic resection of colorectal liver metastases and difference between observed and predicted [Fong's and Basingstoke Predictive Index (BPI) scores] survivals.

Background: : Laparoscopic liver resection has been reported safe and feasible and improves postoperative course. The oncologic outcomes after resection of colorectal metastases are poorly reported.

[Laparoscopic resection of primary and metastatic malignant tumors of the adrenals].

An analysis was made of experience with treatment of 24 patients who underwent laparoscopic adrenalectomy for adrenocortical carcinomas (in 7 patients) and metastases in adrenals (in 17 cases). Laparoscopic adrenalectomy was shown to be a safe and effective method of treatment of primary and metastatic tumors of the adrenals. The method can replace open operative intervention in the majority of patients with metastases to adrenals and primary cancer of the adrenals.

Single-centre experience of laparoscopic pancreatic surgery.

Background: Laparoscopic resection is regarded as safe and feasible in selected patients with benign pancreatic tumours. Few data exist on laparoscopic surgery for malignant lesions and larger neoplasms in unselected patients.

Methods: The study included all patients admitted to Oslo University Hospital, Rikshospitalet, from March 1997 to March 2009 for surgery of lesions in the body and tail of the pancreas, and selected patients with lesions in the pancreatic head, who underwent surgery by a laparoscopic approach with curative intent.

Survival following resection of pancreatic endocrine tumors: importance of R-status and the WHO and TNM classification systems.

Objective: The aim of this study was to delineate the clinical outcomes and pathological characteristics of surgically resected endocrine tumors of the pancreas and to determine the importance of the World Health Organization (WHO) and tumor-node metastasis (TNM) classifications, resection status, and Ki-67 expression for long-term survival.

Patients And Methods: Sixty-nine patients underwent surgical tumor resection with curative intent during 1990-2007. Hospital records were reviewed retrospectively for medical, surgical, pathological, and radiological data.

Use of the Resection Map system as guidance during hepatectomy.

Background: The objective of this work is to evaluate a new concept of intraoperative three-dimensional (3D) visualization system to support hepatectomy. The Resection Map aims to provide accurate cartography for surgeons, who can therefore anticipate risks, increase their confidence and achieve safer liver resection.

Methods: In an experimental prospective cohort study, ten consecutive patients admitted for hepatectomy to three European hospitals were selected.

Laparoscopic liver resection for malignant and benign lesions: ten-year Norwegian single-center experience.

Background: The introduction of laparoscopic liver resection has been challenging because new and safe surgical techniques have had to be developed, and skepticism remains about the use of laparoscopy for malignant neoplasms. We present herein a large-volume single-center experience with laparoscopic liver resection.

Design: Retrospective study.

Should we use laparoscopic adrenalectomy for metastases? Scandinavian multicenter study.

Introduction: Laparoscopic adrenalectomy for metastases is considered controversial. Multicenter retrospective study was performed to gain new knowledge in this issue.

Materials And Methods: From January 1997 till November 2008, 41 adrenalectomies were performed during follow-up of the patients operated for malignant tumors.

Laparoscopic adrenalectomy: Norwegian single-center experience of 242 procedures.

Background: The last 15 years have been characterized by a rapid expansion of minimally invasive surgery as treatment for adrenal diseases. During these years, both indications and surgical techniques have shown improvements. This study analyzed an 11-year single-center experience with laparoscopic adrenalectomy.

[Portal vein embolization before surgery for liver tumours].

Background: Radical resection is the only long-term cure for malignant liver tumours. An important contraindication for surgery is that the liver remnant would be too small. Embolization of the portal vein in the tumour-bearing side of the liver may induce growth of the healthy part and thereby render liver resection possible.

Laparoscopic resection of an intraductal papillary mucinous carcinoma in ectopic pancreatic tissue.

Intraductal papillary mucinous neoplasia (IPMN) is a comparatively recently recognized pancreatic neoplasm with considerable malignant potential. Surgical removal is the only therapy known to provide a cure, but the extent of surgery required is still a matter of discussion. Ectopic pancreatic tissue can occur in a variety of other locations within the gastrointestinal tract and is also known to harbor pathologic conditions that affect normally located pancreatic tissue.

[Radiofrequency ablation of colorectal liver metastases].

Background: Radiofrequency (RF) ablation is a method that uses electrical current for thermal destruction of solid tumours. We present our experience with RF ablation in a patient population with non-resectable colorectal liver metastases.

Material And Methods: 17 of the 23 patients with non-resectable liver metastases treated with RF ablation at Rikshospitalet University Hospital from 2003 to 2006, were included in a prospective non-randomized study with standardized follow-up.