Multivariate Prognostic Models for Patients with Stages I and Ii Colon Carcinoma: a Strobe-Compliant Retrospective Cohort Study.

Background: Colorectal cancer is the most frequent gastrointestinal malignancy worldwide. The value of adjuvant treatment is controversial in Stages I and II.

Objective: The aim of this study was to construct post-operative prognostic models applicable to patients with stages I-II colon carcinoma (CC).

Prognostic Factors and Differences in Survival of Right and Left Colon Carcinoma: A STROBE Compliant Retrospective Cohort Study.

Background: Right-colon cancer (RCC) presents differences with Left-colon cancer (LCC) in terms of Overall survival (OS), but certain reports provide conflicting findings. Our objective is to define differences regarding prognostic factors in RCC and LCC by multivariate analysis.

Methods: Retrospective cohort including patients treated from 1992-2016.

Association of the prognostic nutritional index and overall survival in patients with colorectal cancer: A STROBE compliant retrospective cohort study.

Background: The TNM classification does not completely reflect the prognosis of patients with colorectal cancer (CRC). Several clinical factors have been used to increase its prognostic value, but factors pertaining to the patient's immunonutritional status have not usually been addressed. The aim of this study is to evaluate the role of Prognostic nutritional index (PNI) and other well-known prognostic factors by multivariate analysis in a cohort of patients with CRC.

Baseline serum albumin and other common clinical markers are prognostic factors in colorectal carcinoma: A retrospective cohort study.

The aim of the present study was to define the prognostic role of baseline serum albumin (BSA) in colorectal cancer (CRC) across tumor-node-metastasis (TNM) stages and other well defined prognostic factors. Many prognostic models in medicine employ BSA to define or refine treatments in very specific settings; in CRC, BSA has been found to be a prognostic factor as well. A retrospective cohort study of consecutive patients with CRC demonstrated by biopsy, who attended a cancer center during a 7-year period.

Clinical validation of the EORTC QLQ-OG25 questionnaire for the evaluation of health-related quality of life in Mexican patients with esophagogastric cancers.

Background: Quality of life questionnaires (QLQ) QLQ-STO22 and QLQ-OES18 are currently available to measure Health-related quality of life (HRQL) in patients with Esophageal (EC) or Gastric cancer (GC). The QLQ-OG25 integrates questions from both questionnaires to be useful for EC, Esophagogastric junction carcinoma (EGJC), and GC. Our aim was to validate the Mexican-Spanish version.

Validation of the Mexican Spanish version of the EORTC C30 and STO22 questionnaires for the evaluation of health-related quality of life in patients with gastric cancer.

Health-related quality of life (HRQL) is a fundamental outcome in surgical oncology and culturally valid tools are essential for this purpose. Our aim was to validate the Mexican-Spanish versions of the European Organization for Research and Treatment of Cancer (EORTC) Quality-of-Life Questionnaire QLQ-C30 and the QLQ-STO22 disease-specific questionnaire module in Mexican patients with gastric cancer (GC). The translation procedure followed EORTC guidelines.

Selection of best candidates for multiorgan resection among patients with T4 gastric carcinoma.

Background And Objective: Indications for gastrectomy in T4 gastric carcinoma (GC) remain controversial. Our aim was to define prognostic factors to select those patients with best chance to benefit from multiorgan resection.

Materials And Methods: A cohort of patients with T4 GC treated in a 19-year period.

Experience of surgical morbidity after palliative surgery in patients with gastric carcinoma.

Background: Indications for palliative surgery in gastric carcinoma (GC) are controversial. Our aim was to describe the results of palliative surgery in GC in terms of operative morbidity and survival.

Methods: We conducted a retrospective cohort study of patients with GC, who were divided into three groups: resection with microscopic residual disease (R1), palliative resection with macroscopic residual disease (R2), and gastrojejunostomy.

[Open splenectomy: ten-year experience in an oncological referral center].

Background: Open splenectomy is a useful procedure for some diseases with splenomegaly >1500 g. We undertook this study to evaluate open splenectomy morbidity and mortality at the Instituto Nacional de Cancerologia in Mexico City.

Methods: We reviewed the clinical files of patients with benign and malignant hematological diseases, as well as other diseases, who underwent splenectomy from 1994 to 2005.

Treatment of the adenocarcinoma of the esophagogastric junction at a single institution in Mexico.

Background: Adenocarcinoma of the esophagogastric junction (EGJ) is rapidly increasing in the west. Our aim is to define the prognostic factors and treatment of EGJ carcinoma in Mexico, particularly the location after the Siewert's classification.

Methods: A retrospective cohort of patients suffering from EGJ adenocarcinoma treated from 1987 to 2000.

Serum albumin as a significant prognostic factor for patients with gastric carcinoma.

Background: The definition of prognostic factors in gastric carcinoma (GC) remains controversial. The potential of serum albumin as a prognostic factor for GC is emphasized because the technique to measure it is simple as well as being cheap and widely available. Our aim was to define the prognostic role of serum albumin in GC.

[Survival prognostic factors in a cohort of patients with esophageal carcinoma].

Introduction: The epidemiology of esophageal carcinoma (EC) has changed in the last decades. Adenocarcinoma and squamous cell carcinoma are analyzed as a single condition because prognosis is similar. The aim of this study was to define prognostic factors in EC, considering each histopathologic type independently.

[Endoscopic surgery in neoplasms of the upper digestive tract].

Introduction: Endoscopic surgery has been performed since 1987 when in France the first laparoscopic cholecystectomy was done. Since then it has evolved and found a place in surgical practice. In the field of surgical oncology it has allowed the diagnosis, staging, resection and palliation of a great variety of neoplasms.

Identification of patients with high-risk lymph node-negative colorectal cancer and potential benefit from adjuvant chemotherapy.

Background: Adjuvant chemotherapy is not indicated in lymph node-negative colorectal adenocarcinoma (CRC), even though some cases will present recurrent disease. It is important to identify a subgroup of patients with the highest risk of relapse because of the potential benefit of adjuvant chemotherapy. The objective of this study is to define the prognostic factors and describe a method for the selection of this subgroup.

[Rectal cancer and pregnancy].

Objective: To present Instituto Nacional de Cancerología de México, Gastroenterology Service management of rectal cancer in pregnant patients in a retrospective case study.

Case Report: Two patients were found, 25 an 34 years of age; both adenocarcinomas presented in Dukes D stage and manifested in third trimester of pregnancy. Main clinical manifestations were pelvic pain, hematochezia, and weight loss.