Endoscopia digestiva alta na rede pública de saúde : diagnósticos de lesões do tubo digestivo alto em uma população de atendimento primário na região sudoeste do município de Campinas, São Paulo - Brasil = Endoscopy in public health : diagnoses of lesions in the upper digestive tract in a population of primary care in the region southwest of the city of Campinas, São Paulo - Brazil / Endoscopy in public health : diagnoses of lesions in the upper digestive tract in a population of primary care in the region southwest of the city of Campinas, São Paulo - Brazil

Morgana Terezinha Alves de Queiroz

Upper digestive tract endoscopy (UDTE) is one of the most highly indicated exams for the investigation of upper digestive tract diseases. It is normally performed in high-complexity hospitals and specialized clinics; however, the high demand for UDTE examinations and the growing number of professionals specializing in endoscopic techniques have resulted in a higher availability of these procedures at medium-complexity healthcare facilities. So, the objectives of this study were to analyze the diagnoses obtained from UDTE examinations performed in a population of primary care patients from the Southwestern region of Campinas, São Paulo, Brazil, in the period from 2000 to 2007, defining the percentage of normal examinations and the prevalence of main diseases of the upper digestive tract and correlating these diagnoses with age, gender and source of referral; to establish the prevalence of Helicobacter pylori in one segment of the studied population based on the diagnosed diseases; and to offer supporting data for the implementation of a UDTE primary care model in the public healthcare system. The design of this retrospective study was based on the UDTE reports filed with the specialized department that offers the service. Descriptive and statistical analyses were performed on these reports. The quality of the service was assessed, based on the absence of complications and on the answers given to an illustrative questionnaire applied to a portion of the patients who underwent UDTE examinations. The statistical analyses were performed with the SAS (Statistical Analysis System) software, with a significance level of 5% (p<0.05). The tests applied were Chi-square and Fisher s exact test, as well as logistic regression for the calculation of odds ratios. During the general descriptive analysis, it was observedthat the majority of examinations was conducted on female patients; and on patients ages 40-49, irrespective of gender. There were two peaks of age prevalence among women (18-29 and 40-49 y.o.); among men, the prevalent age groupwas 60 y.o. and older. Among the 5,000 analyzed UDTE examinations, the prevalence of esophageal segment disease was 25.96%, including erosive and non-erosive esophagitis(21.32%); and early and advanced esophageal cancer (0.30%). Prevalence of disease in the gastric segment was 79.74%, including chronic gastritis (75.82%), gastric ulcers (9.10%) and gastric cancer (0.58%). In the duodenal segment, the rate of abnormalities was 32.96%, including duodenal ulcers (19.34%) and duodenitis (17.74%). Out of the 5,000 examinations, a total of 2,822 patients (56.44%) were selected for H. pylori testing using the histological and/or urease methods, to investigate the correlation of this bacterium with gastric and duodenal ulcers, as well as gastritis identified as micronodular after endoscopic examination. Normal endoscopic examinations were assessed from 604 patients (12.08%), which presented statistically representative values for the 18-29 years old age group and the female gender. In conclusion, with this study, the implementation of diagnostic UDTE using a well-structured medical team is a viable option in primary healthcare. Besides, according to the favorable assessments expressed voluntarily by some patients, the procedure does not produce complications.

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