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C Manterola

Publications and source records attributed to C Manterola.

12 recordsLinked to original sources
PubMed2004

Prevalence of esophageal disorders in patients with recurrent chest pain.

The objective of this study is to determine the prevalence of esophageal disorders (ED) associated with recurrent chest pain (RCP) and the utility of esophageal functional tests (EFT) in the study of these patients. The cross-sectional study was conducted at Hospital Clínico de La Frontera, Chile. One hundred and twenty-three patients with RCP were studied using esophageal manometry, edrophonium stimulation and 24-h pH monitoring. The performance of EFT was considered acceptable when they were capable of finding ED. To state the probability that RCP had an esophageal origin, patients were classified according to whether their pain had a probable, possible or unlikely esophageal origin. The prevalence of ED was determined according to diagnoses obtained after applying EFT and a multivariate analysis was performed to examine the association between the esophageal origin of RCP and ED. Rates of correct diagnosis of 65.9%, 56.9% and 31.7% was verified for 24-h pH monitoring, esophageal manometry and edrophonium stimulation, respectively. In 38.2% of patients with RCP, the pain was probably of esophageal origin, in 42.3% there was a possible esophageal origin and in 19.5% an unlikely esophageal origin. A 44.7% prevalence of GERD, 26.8% of GERD with secondary esophageal motor dysfunction and 8.9% of pure esophageal motor dysfunction were verified. The multivariate analysis allowed us to verify the association between the probability of esophageal origin of RCP, the variables RCP duration, esophagitis and dysphagia coexistence (P= 0.037, P= 0.030 and P= 0.024, respectively), and a statistically significant association between ED and dysphagia coexistence (P= 0.028). A high prevalence of ED was identified in patients with RCP.

Adult↗
PubMed2001

Laparoscopic pericystectomy for liver hydatid cysts.

BACKGROUND: The laparoscopic approach for managing of liver echinococcosis is a controversial issue because of scarce experience worldwide. The aim of this report is to describe the technical details of our laparoscopic method and present our results. METHODS: Consecutive cases of liver echinococcosis managed by laparoscopic surgery are reported. Thoracic x-ray and abdominal ultrasound had been performed previously. The following aspects were considered as selection criteria: unique cyst located in segments III, IV, V, VI, and VIII; diameter less than 7 cm; and no evidence of infection or calcification. An evacuating puncture was performed, germinative membrane removed, and pericystectomy performed, which extirpated the pericystic structure with the surrounding liver parenchyma. Specimens were removed in a plastic bag through one of the ports. Surgical morbidity, hospital stay, time until return to work, and evidences of hydatid recurrence were measured. RESULTS: Surgery was performed on eight patients (5 women and 3 men) with a mean age of 44.9 years (range, 22-83 years) who had a liver hydatid cyst with a mean diameter of 6.6 cm (range, 5-7 cm). During a mean follow-up period of 30 months (range, 23-44 months), no morbidity or hydatid recurrence were verified. Hospital stay was 2 days in all cases, and return to work was within 15 days. CONCLUSION: This laparoscopic technique, applied with selective criteria, can be a useful alternative for treating patients with liver hydatidosis because its results are comparable with those for open surgery studies involving similar follow-up time.

Adult↗
PubMed2000

[Study of association between the magnitude of sphincter hypotonia and esophageal motor disorders].

BACKGROUND: One of the most important factors involved in the pathophysiology of gastroesophageal reflux disease (GERD) is the lower esophageal sphincter rest pressure (LESRP), but these patients can have esophageal motor disorders (EMD). AIM: To assess an association between LESRP and the appearance of EMD in patients with GERD. SUBJECTS AND METHODS: A cross-sectional study was conducted in 229 patients with GERD and 49 healthy controls. Forty five patients with LESRP < 6 mmHg and a mean age of 49 years were assigned to group 1, 128 patients with a LESRP between 6 and 12 mmHg and mean age of 47 years were assigned to group 2, 56 patients with a a LESRP > 12 mmHg and a mean age of 47 years were assigned to group 3 and group 4 was conformed by 49 healthy subjects aged 40 years old. Esophageal manometry was performed using previously published techniques. RESULTS: There was a significant association between LESRP, waves amplitude and the frequency of tertiary waves. CONCLUSIONS: Resting lower esophageal sphincter pressure is inversely proportional to the presence of esophageal motor disorders in patients with gastroesophageal reflux disease.

Adult↗
PubMed2000

[Carcinoma hepatocellular. Description of verified clinical characteristics in a region of Southern Chile].

BACKGROUND: Hepatocellular carcinoma is the most frequent primary tumor of the liver. It is associated to chronic liver diseases and has a high prevalence in some regions of Africa and Asia. AIM: To describe the clinical characteristics of patients with hepatocellular carcinoma, admitted to two hospitals of the IX region of southern Chile. MATERIAL AND METHODS: Prospective study of 29 consecutive patients admitted to two hospitals in Temuco, Chile. Clinical features, laboratory values and viral markers were analyzed. RESULTS: Eighteen patients were male and ages ranged from 29 to 75 years old. The most frequent presenting symptom was abdominal pain in 21 patients. Seven subjects had a history of alcoholism. Serum bilirubin values ranged from 0.1 to 15.8 mg/dl, alkaline phosphatases ranged from 171 to 3476 U/l, ASAT from 24 to 5400 U/l and alpha feto protein from 1.4 to 350 ng/ml. Two patients had a positive hepatitis B surface antigen and all had negative hepatitis C virus antibodies. Mean tumoral diameter was 9.6 cm and the most common presentation was nodular. Mean survival after the diagnosis was 6.3 months. CONCLUSIONS: These patients with hepatocellular carcinoma have a low frequency of positive viral markers and tumors of large sizes on presentation.

Adult↗
PubMed1999

[Construction and validation of a gastroesophageal reflux symptom scale. Preliminary report].

BACKGROUND: Gastroesophageal reflux symptoms are frequent in the general population, but there is a lack of information about its prevalence and valid and reliable scales to determine it. AIM: To design a valid and reliable scale to determine gastroesophageal reflux disease. SUBJECTS AND METHODS: A Cross-sectional study with patients and controls was conducted. The diagnosis of gastroesophageal reflux was based of clinical plus radiological, endoscopic or pathologic criteria. A structured questionnaire was built, containing items covering different clinical manifestations of gastroesophageal reflux disease. All subjects were subjected to 24 h esophageal pH monitoring. Internal consistency of items, interobserver reliability, criterion and construct validity, sensitivity, specificity and predicted values were obtained. RESULTS: One hundred thirteen subjects (74 female and 39 male with a mean age of 46 years old) were studied. Seventy three had gastroesophageal reflux and 40 were controls. Internal consistency of the score was 0.82. Inter observer reliability was greater than 0.80 and a significant association was observed between the score and 24 h esophageal pH monitoring (p < 0.001). Instrument sensitivity was 97% and specificity 83%. CONCLUSIONS: The designed scale proved to be a valid and reliable instrument to measure gastroesophageal reflux symptoms, that can be used for future prevalence studies.

Adult↗
PubMed1997

Effects of red wine on 24-hour esophageal pH and pressures in healthy volunteers.

The purpose of this study was to assess the effects of red wine taken with meals on esophageal motility, esophageal exposure to acid, and gastric pH. Following a randomized design, 14 healthy male volunteers (mean age 25 years, range 18-35 years were given 360 ml of red wine or tap water during lunch or dinner. All subjects underwent ambulatory 24-hr esophageal motility and esophagogastric pH monitoring studies. Three different periods were analyzed: during meals (30 min), postprandial (3 hr), and 8-hr supine. Two volunteers complained of heartburn after wine ingestion. An increase in the number of high amplitude waves (> 125 mm Hg, 95th percentile of our motility unit controls) was observed during meals accompanied by wine: water 1.2 (0-10.2), wine 1.6 (0-32.6), P = 0.02 [median (range)]. No other esophageal motility changes occurred. Percent reflux time increased during the postprandial period after wine ingestion in comparison with water: 1.7 (0-14.9) vs 0.1 (0-0.8), P < 0.05. Gastric pH was unaffected by the type of drink. Ingestion of moderate amounts of red wine with meals increases postprandial esophageal exposure to gastric acid in healthy persons.

Adult↗
PubMed1997

[24 hour esophageal pH monitoring in healthy individuals].

BACKGROUND: Twenty four hour esophageal pH monitoring is considered the gold standard investigation for gastroesophageal reflux disease. This test allows the linkage of symptoms to occurrence of reflux episodes and is used to record the frequency of reflux and the amount of esophageal acid exposure that results from reflux. AIM: To know the acid esophageal exposure in healthy Chilean subjects. SUBJECTS AND METHODS: Thirty two asymptomatic volunteers aged 30 to 76 years old (24 female) underwent 24 h esophageal pH monitoring with a digitrapper Mark II Gold (Synectics Medical Stockholm). Total reflux episodes, episodes greater than 5 min, the longest reflux episode, the lapse with pH < 5, the percentage of time with pH < 4 and the score suggested by Johnson and De Mester were analyzed. RESULTS: There was a mean of 20.9 reflux episodes per subject and 0.1 episodes of more than 5 min. The longest episode lasted 8 min and the mean total time of acid reflux was 10 min/24 h. Total percentage pH below 4 was 0.7% and the mean score was 3.2. No subject reported symptoms during the test. CONCLUSIONS: For practical purposes, the upper limit of normal acid exposure in Chilean subjects is 2.4%.

Adult↗
PubMed1996

[Hepatocellular carcinoma. General aspects of diagnosis and treatment].

Hepatocellular carcinoma is the most frequent form of primary hepatic cancer and has a high dissemination capacity. About 90% of tumors develop over a pre-existing cirrhosis but they also may occur in a normal liver. It has a higher frequency among males and 80% of tumors have clinical manifestations. It is associated to hepatitis B and C virus infection, alcoholism, cirrhosis of any etiology, consumption of aflatoxin Bl, oriental race and familial history. Patients are staged using classifications proposed by Okuda, Child-Pugh and the performance status test. Alpha feto protein is useful for diagnosis and follow up Abdominal ultrasound, hepatic scintiscan, angiography with lipiodol, CAT scan and nuclear magnetic resonance have a high diagnostic yield. Non surgical therapeutic alternatives include intratumoral alcoholization, chemoembolization and other such as tamoxifen and monoclonal antibodies. Surgical treatment is based on hepatic resection, whose magnitude depends on hepatic function. Hepatic transplantation is a new therapeutic alternative for patients in whom resection is not feasible and have a single small tumor without metastases.

Biomarkers, Tumor↗
PubMed1994

Value of Nissen fundoplication in patients with gastro-oesophageal reflux judged by long-term symptom control.

A total of 160 patients treated by Nissen fundoplication for uncomplicated gastro-oesophageal reflux disease were studied over a 20-year period. Recurrent reflux and side-effects were assessed yearly after surgery. No objective tests for reflux were performed during follow-up if patients were asymptomatic. Perioperative mortality and technique-related morbidity rates were both 2 per cent. At the latest evaluation, 79 per cent of patients were completely relieved of reflux symptoms, 85 per cent had symptoms of Visick grade 1 or 2 and 89 per cent would be willing to undergo surgery again under the same conditions. Actuarial analysis showed that the success rate of fundoplication was 92 per cent at 20 years. Fourteen patients (9 per cent) developed side-effects after fundoplication and had continuing disability. Nissen fundoplication achieves permanent control of reflux symptoms in most patients with few complications and has a high degree of patient satisfaction.

Female↗
PubMed1991

Pilonidal disease: 25 cases treated by the Dufourmentel technique.

Twenty-five patients with pilonidal disease were treated by the Dufourmentel technique between 1984 and 1989. In this series, 18 patients (72 percent) were women and 7 (28 percent) were men (mean age, 24 years); hospital stay averaged 4 days. There were no recurrences and no reports of surgical wound infection. Diagnosis was confirmed histologically in all cases.

Adolescent↗
PubMedDate not supplied

[Cholangiohydatidosis. An evolutive complication of hepatic hydatidosis].

Hydatidosis is and endemic disease in the south of Chile, especially in Region IX where remain rates of high prevalence. Cholangiohydatidosis is an infrequent complication of liver hydatidosis. The objective of this paper is to describe clinical features of a series of patients with cholangiohydatidosis. Series of cases of cholangiohydatidosis treated consecutively and the corresponding follow-up is reported. Clinical, laboratory and images characteristics are described. Descriptive statistic was used its incidence was calculated. In the studied period, 13 patients with cholangiohydatidosis were recruited, 9 men (69.2%) and 4 women (30.7%). Observed laboratory abnormalities were an increment of leukocytes in 8 patients (61.5%) and hepatic cholestasis with hepatocyte signs of cytolysis in 11 patients (84.6%). Choledocus diameter average measured by ultrasonography was 24.7 mm. All the patients had at least one liver cyst whose diameter average was of 12.1 cm. At surgery, evidence of biliary communications was detected in all patients and biliary decompression was carried out through a choledocostomy in 12 patients (92.3%) and by choledocoduodenal anastomoses in one case (7.7%). With a mean follow-up of 38.7 months morbility was 23% and mortality 7.7%. Accumulated incidence of this entity was of 0.07 cases in 5 years. Cholangiohydatidosis is an uncommon complication of liver hydatidosis that presents considerable morbidity and mortality rates.

Adolescent↗