ABSTRACT
INTRODUCTION: Identification of patients with hereditary nonpolyposis colorectal cancer (HNPCC) can allow colorectal cancer (CRC) prevention through colonoscopy and polypectomies. The purpose of this study was to report the clinical characteristics of HNPCC families in our registry. PATIENTS AND METHOD: HNPCC was identified using the Amsterdam criteria. Familial clustering of CRC and extracolonic cancers were investigated in families. Individuals at risk were offered annual colonoscopy, starting from the age of 25 years. RESULTS: Twelve HNPCC families were identified. There were 46 cases of CRC in 38 patients. The mean age at diagnosis of CRC was 45.4 +/- 12.7 years (range 25-73 years). In patients with documented disease, right-sided tumors predominated. Eleven patients with extracolonic cancer were identified (six tumors located in the endometrium). Of 43 at-risk individuals, 29 accepted surveillance. CONCLUSIONS: Our data confirm the importance of the family history in identifying HNPCC. This study confirms previously described characteristics in HNPCC, namely, early age at onset of CRC, right-sided predominance, multiple synchronous and metachronous neoplasms, and increased extracolonic cancers. This is the first study of clinical data in a Spanish HNPCC registry.
Subject(s)
Colorectal Neoplasms, Hereditary Nonpolyposis/epidemiology , Adult , Age Distribution , Aged , Female , Hospitals/statistics & numerical data , Humans , Incidence , Male , Middle Aged , Registries , Spain/epidemiologyABSTRACT
Introducción: La identificación de los pacientes afectados de cáncer colorrectal hereditario sin poliposis (CCRHSP) hace posible la prevención del cáncer colorrectal (CCR), mediante el cribado endoscópico y las polipectomías endoscópicas. La finalidad de nuestro estudio es presentar los datos clínicos de las familias incluidas en nuestro registro de CCRHSP. Pacientes y método: El CCRHSP se identifica mediante los criterios de Ámsterdam. Se analiza la historia familiar de CCR y de neoplasias extracolónicas. Entre las familias identificadas, a los familiares en situación de riesgo se les ofrece la realización de cribado mediante colonoscopia anual, a partir de los 25 años de edad. Resultados: Se identifica a 12 familias que cumplen los criterios de Ámsterdam. En total se presentan 46 casos de CCR en 38 pacientes. La edad media en el momento del diagnóstico es de 45,4 ± 12,7 años, con un rango de entre 25 y 73 años. Entre los pacientes con histología documentada, predominan las lesiones del colon derecho. Se identifica a 11 pacientes con neoplasias extracolónicas (6 localizadas en el endometrio). En total, 29 de 43 familiares de riesgo aceptaron el cribado endoscópico. Conclusiones: Los datos confirman la importancia de la historia familiar para la identificación del CCRHSP. Este estudio confirma las características previamente descritas para el CCRHSP, como la edad temprana de presentación del CCR, la localización preferente en el colon derecho, la presencia de múltiples lesiones sincrónicas o metacrónicas y el incremento de las neoplasias extracolónicas. Éste es el primer estudio con datos clínicos de un registro de CCRHSP en España
Introduction: Identification of patients with hereditary nonpolyposis colorectal cancer (HNPCC) can allow colorectal cancer (CRC) prevention through colonoscopy and polypectomies. The purpose of this study was to report the clinical characteristics of HNPCC families in our registry. Patients and method: HNPCC was identified using the Amsterdam criteria. Familial clustering of CRC and extracolonic cancers were investigated in families. Individuals at risk were offered annual colonoscopy, starting from the age of 25 years. Results: Twelve HNPCC families were identified. There were 46 cases of CRC in 38 patients. The mean age at diagnosis of CRC was 45.4 ± 12.7 years (range 25-73 years). In patients with documented disease, right-sided tumors predominated. Eleven patients with extracolonic cancer were identified (six tumors located in the endometrium). Of 43 at-risk individuals, 29 accepted surveillance. Conclusions: Our data confirm the importance of the family history in identifying HNPCC. This study confirms previously described characteristics in HNPCC, namely, early age at onset of CRC, right-sided predominance, multiple synchronous and metachronous neoplasms, and increased extracolonic cancers. This is the first study of clinical data in a Spanish HNPCC registry
Subject(s)
Male , Female , Adult , Middle Aged , Aged , Humans , Colorectal Neoplasms, Hereditary Nonpolyposis/epidemiology , Age Distribution , Hospitals/statistics & numerical data , Incidence , Registries , Spain/epidemiologySubject(s)
Esophageal Diseases/pathology , Esophagus/pathology , Polyps/pathology , Endosonography , Esophageal Diseases/diagnostic imaging , Esophageal Diseases/surgery , Esophagectomy/methods , Esophagoscopy , Esophagus/diagnostic imaging , Esophagus/surgery , Humans , Male , Middle Aged , Polyps/diagnostic imaging , Polyps/surgery , Treatment OutcomeABSTRACT
BACKGROUND: The role of lactose malabsorption in ulcerative colitis is controversial. The aim of this study was to compare the prevalence of lactose malabsorption in a group of ulcerative colitis patients and a control group and to modify lactose consumption in view of the results. METHODS: Lactose malabsorption was studied using the hydrogen breath test in 52 patients with ulcerative colitis and 34 controls after ingestion of 25 g of lactose. A questionnaire on ingestion of milk products was also administered. RESULTS: Of the 52 patients with ulcerative colitis, 13 (25%) presented lactose malabsorption compared with 11 of the 34 (32%) controls (p = 0.45). Twenty-four patients (46%) had been advised to completely eliminate lactose from their diets. Twenty-seven of the 39 patients without malabsorption had reduced or eliminated lactose consumption after being diagnosed with ulcerative colitis. CONCLUSIONS: No significant differences in the prevalence of lactose malabsorption was found between patients with ulcerative colitis and controls. We believe that systematic elimination of lactose from the diets of these patients is erroneous. In our environment, we recommend the hydrogen breath test only in patients with symptoms of lactose intolerance.