Open Access Medical Books

TEXTBOOK : RECTAL CANCER – A MULTIDISCIPLINARY APPROACH TO MANAGEMENT

RECTAL CANCER

Edited by Giulio Aniello Santoro .

Open Access .
410 pages .

Major developments in medicine over last few years have resulted in more reliable and accessible diagnostics and treatment of rectal cancer. Given the complex physiopathology of this tumor, the approach should not limit to a single specialty but involve a number of specialties (surgery, gastroenterology, radiology, biology, oncology, radiotherapy, nuclear medicine, physiotherapy) in an integrated manner.
The subtitle of this book “Multidisciplinary Approach to Management” encompasses this concept. We have endeavored, with the help of an international group of contributors, to provide an up-to-date and authoritative account of the management of rectal tumor.
Our starting point (Section I) is the epidemiology of the rectal cancer, and this section addresses not only the evolution of rectal cancer epidemiology in the last years based on population-based cancer registry, but also the new AJCC staging classification.
Development of screening models for colorectal cancer depends on disease risk stratification of individuals in the population. By performing opportunistic screening among high-risk populations, the average direct cost for each detected case of colorectal cancer is four times less than the cost of systematic screening.
Entire Section II is devoted to the various techniques (two-dimensional and threedimensional endorectal ultrasonography, power-doppler ultrasound, conventional and dynamic magnetic resonance) that may be employed to image the rectal cancer.
Endorectal ultrasound has been widely accepted as the reference method for local staging of rectal cancer, and is now proposed as mandatory for preoperative staging purposes in the guidelines of the main scientific societies. The technique has evolved, due to the systematic efforts of researchers, in defining the normal anatomy of rectal wall and perirectal anatomic structures, in differentiating early cancers from advanced neoplasm and in defining pathological from reactive perirectal nodes. The computerassisted endosonographic Doppler and the immunohistochemical based methods represent rapid, reliable and reproducible ways for quantitative assessment of tumour vascularization. Rectal carcinoma with high angiogenic activity are more likely to have deeper tumor invasion, lymph node metastases and distant metastases. Due to its intrinsic multiparametricity and multiplanarity MRI is considered the most accurate modality in evaluating locally advanced rectal cancer and the presence of a positive circumferential resection margin. Dynamic Contrast Enhanced-Magnetic Resonance Imaging is gaining a large consensus as a technique for diagnosis, staging and assessment of response to preoperative radiochemotherapy (RCT) due to its capability to detect the strict relationship that links tumor growth to angiogenesis.
The common use of total mesorectal excision (TME) and the shift from a postoperative to a preoperative RCT approach have substantially reduced the risk of local recurrences, increasing curative resection and the rate of anal sphincter preservation and improving local control and overall survival rates. The surgical principles in the treatment of rectal cancer are described in details in Section III, including combined modality treatment in early rectal cancer, single-incision laparoscopy, intraoperative sentinel lymph node mapping, neorectum for low rectal tumor, salvage surgery for local recurrence and causes and prevention of functional disturbances following low anterior resection.
Section IV is focused on neo-adjuvant and adjuvant treatments. The analysis of posttreatment tumor histological features helps to analyze if the mutational mechanisms, produced during tumor development, persist under therapy, and what changes the cells have undergone to be resistant to treatment. The response of rectal adenocarcinoma to neo-adjuvant RCT is limited to a defined group of patients. It is hoped in the future that the therapeutic course will be tailored to each patient based on analyses of initial pre-treatment biopsy assessment, thus minimizing unnecessary treatment for rectal cancer patients. Several microRNAs have been found to be involved in cancer response to therapy. High levels of miR-21 are associated with worse response to treatment, whereas patients bearing miR-21-low-level tumours have reduced risk of recurrent disease within a five-year follow-up period. In the setting of a complete tumor regression after neoadjuvant CRT, surgeons have searched for alternative management of patients in order to avoid the potential consequences of TME with or without abdominal perineal resection. Most patients with metastatic rectal cancer cannot be cured, although patients with liver and/or lung-limited disease are potentially curable with surgical resection of metastases.
For other patients, palliative systemic chemotherapy is associated with an increase in survival and quality of life. Since the year 2000, new chemotherapy agents have been approved or are under evaluation in many clinical trials. Treatment must be individualized as always, taking into account goals therapy, and the toxicity profiles of each agent.
We wish to express our deep appreciation to InTech for supporting the idea of publishing a book in such an innovative form. Special thanks are due to Ms. Daria Nahtigal for her constant assistance throughout the development of the project, organizing every stage of the editorial work. Special acknowledgements must be given to the authors, who are among the foremost experts with outstanding qualifications in this complex field, and who have contributed to the many chapters of this volume.
Without their experience and cooperation, this book would not have been possible.
We are confident that this book will be met with great interest from all clinicians involved in the care of patients suffering from rectal cancer.

Giulio Aniello Santoro, M.D., Ph.D.,
Head, Pelvic Floor Unit
I Department of Surgery,
Regional Hospital, Treviso,
Italy

Honorary Professor,
Shandong University,
China
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CONTENTS :

Part 1 of the Textbook : Rectal Cancer Epidemiology .


 1 Rectal Cancer Epidemiology 3 Miguel Henriques Abreu, Eduarda Matos, Fernando Castro Poças, Rosa Rocha and Jorge Pinto

 2 Opportunistic Screening for Colorectal Cancer 19 Xu An-gao

 3 Crohn’s Disease and Colorectal Cancer 29 Andrea Denegri, Francesco Paparo and Rosario Fornaro

Part 2 of the Textbook : Imaging .


 4 Preoperative Staging of Rectal Cancer: Role of Endorectal Ultrasound 49 Miro A.G.F., Grobler S. and Santoro G.A.

 5 Dynamic Contrast Enhanced Magnetic Resonance Imaging in Rectal Cancer 75 Roberta Fusco, Mario Sansone, Mario Petrillo, Antonio Avallone, Paolo Delrio and Antonella Petrillo

 6 Tumour Angiogenesis in Rectal Cancer-Computer-Assisted Endosonographic and Immunohistochemical Methods for Assessment 99 Tankova Ludmila, Daniel Kovatchki, Georgi Stoilov, Antonina Gegova and Ivan Terziev

Part 3 of the Textbook : Surgical Treatment .


 7 Rectal Carcinoma: Multi-Modality Approach in Curative Local Treatment of Early Rectal Carcinoma 119 S. H. Kho, S. P. Govilkar, A. S. Myint and M. J. Hershman

 8 Single – Incision Laparoscopic Surgery for Rectal Cancer 137 Orhan Bulut

 9 Intraoperative Sentinel Lymph Node Mapping in Patients with Colorectal Cancer 159 Krasimir Ivanov, Nikola Kolev and Anton Tonev

 10 Is Neo-Rectum a Better Option for Low Rectal Cancers? 183 Fazl Q. Parray, Umar Farouqi and Nisar A. Chowdri

 11 Experimental Evaluation of the Mechanical Strength of the Stapling Techniques: Experimental Study on Animal Model 201 Kentaro Kawasaki, Kiyonori Kanemitsu, Tadahiro Goto, Yasuhiro Fujino and Yoshikazu Kuroda

 12 Management of Locally Recurrent Rectal Cancer 211 Zoran Krivokapic and Ivan Dimitrijevic

 13 Causes and Prevention of Functional Disturbances Following Low Anterior Resection for Rectal Cancer 225 Eberhard Gross

Part 4 of the Textbook : Adjuvant and Neo-Adjuvant Treatments .


 14 Role of Tumor Tissue Analysis in Rectal Cancer Pharmacogenetics 253 Emilia Balboa, Goretti Duran, Maria Jesus Lamas, Antonio Gomez-Caamaño, Catuxa Celeiro-Muñoz, Rafael Lopez, Angel Carracedo and Francisco Barros

 15 Tumor Markers of Neo-Adjuvant Chemo-Radiation Response in Rectal Cancer 277 Jacintha N. O’Sullivan, Mary Clare Cathcart and John V. Reynolds

 16 MicroRNAs and Rectal Cancer 295 Miroslav Svoboda and Ilona Kocakova

 17 Nonoperative Management of Distal Rectal Cancer After Chemoradiation: Experience with the “Watch & Wait” Protocol 317 Angelita Habr-Gama, Rodrigo Oliva Perez, Patricio B. Lynn, Arceu Scanavini Neto and Joaquim Gama-Rodrigues

 18 Systemic Treatment in Recurrent and Metastatic Unresectable Rectal Cancer 337 François-Xavier Otte, Mustapha Tehfe, Jean-Pierre Ayoub and Francine Aubin

 19 Side Effects of Neoadjuvant Treatment in Locally Advanced Rectal Cancer 353 Karoline Horisberger and Pablo Palma

 20 New Option for Metastatic Colorectal Cancer: Oxaliplatin and Novel Oral S-1 Combination Chemotherapy 367 Dae Young Zang

 21 Bone Metastasis of Rectal Carcinoma 377 Germán Borobio León, Asunción García Plaza, Roberto González Alconada, Ignacio García Cepeda, Jorge López Olmedo, Alberto Moreno Regidor and David Pescador Hernández .




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