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Biomedical subjects

A González Ojeda

Publications and source records attributed to A González Ojeda.

8 recordsLinked to original sources

Effects of behavior-modifying education in the metabolic profile of the type 2 diabetes mellitus patient.

To demonstrate the advantages of behavior-modifying education in the metabolic profile of the type-2 diabetes mellitus patient. A quasi-experimental study was performed with a control group. The experimental group was made up of 25 type-2 diabetic patients and the control group consisted of 24. The type of education carried out was a behavior modification. Baseline measurements and subsequent monthly measurements of serum glucose, total cholesterol and triglycerides were carried out during 9 months after the intervention. The groups were controlled according to age and sex. The statistical analysis was performed using the Student's and Wilcoxon's test to determine the difference. The experimental group in comparison with the control group in the measurement after the intervention achieved a mean difference in serum glucose of 64.2 mg/dl (p=0.001), in the cholesterol of 31.6 (p=0.008), and in the triglycerides of 50.8 (p=0.006). The behavior-modifying education is a better option than traditional intervention for metabolic control in type-2 diabetes mellitus patients.

Behavior Therapy↗

[Comparative study of soft diet or clear liquids in the resumption of oral intake in the postoperative period].

BACKGROUND: The reinstitution of oral intake in patients who have undergone intraabdominal surgery has traditionally progressed in a stepwise fashion beginning with clear liquids, liquid diet and after an adequate tolerance regular diet. OBJECTIVE: To determine if the reinstitution of oral intake after major abdominal surgery with regular diet offers benefits into which it's not harmful for patients and reduce the in-hospital stay. TYPE OF STUDY: Prospective, randomized, open study conducted between October 1996 to May 1997. MATERIAL AND METHODS: Patients aged 18 and older submitted to elective or urgent surgery of the abdomen and pelvis were included with the exception of: bariatric surgery, esophageal resection, pyloroplasty, pancreato-duodenal resection, laparoscopic surgery and patients under ventilatory support or with enteral or parenteral nutrition. As soon as postoperative ileus disappeared patients were randomly assigned to receive regular diet (group 1) or clear liquids (group 2) as the first oral intake. Oral diet tolerance was evaluated as well as the caloric and protein intake, the in-hospital stay and the cost. RESULTS AND MEASUREMENTS: Group 1 was conformed by 63 patients, and group 2 for 69 patients. There was no difference between, sex, age, kind of surgery (elective or emergency) and the type of pathology. 96.6% of patients in group 1 tolerated regular diet and 96.9% of patients in group 2 tolerated clear liquids. Only two patients of each group required oral intake suspension. The in-hospital stay was 2.6 +/- 2.0 days in group 1 against 3.4 +/- 2.6 in group 2 (P = < 0.005), the cost of the in-hospital stay period after the beginning of oral intake was 2726 +/- 2107 pesos in group 1 against 3547 +/- 2690 in group 2 (P = < 0.005), the caloric and protein intake were 1307 +/- 523 Kcals with 55.9 +/- 23.2 grams of proteins in group 1 and 651 +/- 204 Kcals and 0 grams of proteins in group 2 (P = < 0.00001). CONCLUSIONS: No difference was found in adverse reactions with the use of regular diet as the first meal. The in-hospital stay and the cost were reduced significantly and the calories and grams of proteins are higher in group 1. These results suggest that the routine use of clear liquids as the initial postoperative diet may be unnecessary and nutritionally suboptimal when compared with regular diet.

Abdomen↗

[Abdominal complications after cardiopulmonary procedures].

OBJECTIVE: To know the frequency of intraabdominal complications and its impact on survival of patients submitted to cardiopulmonary bypass for common open-heart surgical procedures. BACKGROUND: The gastrointestinal complications after cardiac surgery with cardiopulmonary bypass (CPB) have an incidence of 0.3 to 3% but mortality can exceed 60%. Despite improvements in preoperative, operative and postoperative care it has been the general impression that abdominal complications remain a significant problem. TYPE OF STUDY: Retrospective case-control study. MATERIAL AND METHODS: Consecutive patients submitted to cardiac surgery with CPB between March 1995 to March 1997 were included. Any gastrointestinal complication was identified as well as its diagnosis, medical or surgical management and mortality. RESULTS: One thousand and three hundred fifty two patients were studied of which 516 (38%) were operated for coronary revascularization, 502 (37%) valvular replacement, 68 (5.2%) a combination of valvular replacement and revascularization, 144 (10.6%) correction of congenital defects and 122 (9.6%) treated of diverse problems. Forty-four patients developed complications (3.3%) and they were, postoperative intestinal ileus in 14 cases (32%), half of them had concomitant hyperamylasemia. Hepatobiliary complications represented 29.5% (13 cases). Ten patients (22.7%) developed peptic ulcer disease complicated with perforation or hemorrhage. Severe acute pancreatitis was observed in two patients as well as two with bowel necrosis. Three patients had complications considered not related to CPB as grade I liver trauma, acute appendicitis and amebic colitis. The mortality was 11/44 (25%). As a control group, 73 patients operated upon over the same time period and on the same days as the study patients were analyzed. The mortality in this group was 5/73 (6.8%). The medical history of peptic ulcer disease (< 0.01) and postoperative hemodynamic unstability (< 0.05), the use of intra-aortic balloon pump (< 0.05) and respiratory failure with prolonged ventilatory support (< 0.05) were separate statistical significant determinants for the development of postoperative abdominal complications. CONCLUSIONS: Factors indicative of or contributing to periods of decreased end-organ perfusion appear to be significantly related to abdominal complications. Also, medical history of peptic ulcer disease represented an individual determinant of severe surgical complications as ulcer perforation and massive bleeding.

Adult↗

[Hartmann's procedure. Institutional experience with 92 consecutive cases].

BACKGROUND: Since it's description in 1923, Hartmann's procedure is widely used for the surgical treatment of acute left colonic complications when preoperative bowel lavage is not feasible and/or there is high risk of anastomotic dehiscence. OBJECTIVE: Analyze the results of Hartmann's operation in the surgical treatment of consecutive patients at a single institution during a 30-month interval. TYPE OF STUDY: Prospective, non-randomized and longitudinal study. MATERIAL AND METHODS: Patients treated with the Hartmann procedure between March 1995 and September 1998. Surgical indication, intraoperative findings, morbidity and mortality were analyzed as well as the rate of reestablishment of bowel continuity and it's morbimortality. RESULTS: Ninety-two patients underwent a Hartmann procedure. The mean patient's age was 60 +/- 25 years (range of 21 to 88 years) and 60% were older than 65 years. An emergency operation was carried out in 91% of the cases. Most of the patients had intra-abdominal sepsis (56%) and benign colonic process (83%). The morbidity rate was 34% and mortality rate 19. During follow-up the bowel continuity was reestablished in 32% of the cases without fatalities. CONCLUSIONS: Hartmann's procedure is a good option for non-elective surgical treatment complicated rectosigmoid pathology. The morbidity and mortality of the operation are highly dependent on the degree of preoperative sepsis and the patient's preexisting condition. The rate of reestablishment of bowel continuity was low probably because of short follow-up.

Adult↗

[Results of the participation of resident physicians in the surgical treatment of gallbladder lithiasis].

The aim of this retrospective study was to evaluate the impact of resident participation in the results of surgical treatment in 1149 consecutive patients operated for biliary disease between January, 1980 and December, 1987 at the Instituto Nacional de la Nutrición "Salvador Zubirán". Patients were divided in three groups: GROUP I. 640 cases treated by surgical residents under a senior surgeon supervision. GROUP II. 168 patients operated by the chief surgical resident. GROUP III. 341 patients treated by senior staff surgeons. Age, sex and risk factors were similar between groups. Residents performed more operative cholangiograms (p less than 0.05). In general, senior surgeons performed more transduodenal sphincteroplasties (p less than 0.05) and other additional procedures like appendectomies and gastrostomies during the same surgery. Wound infection was more frequent in group III patients (p less than 0.005) but there was no significant clinical difference in other postoperative complications like intraabdominal abscess, bile fistula, wound dehiscence, intraabdominal bleeding, iatrogenic injury of the biliary tract, and residual common duct stone. The duration of the in-hospital convalescence period was similar in all three groups. The mortality rate for the total series was 2.2%. In group II there were more patients affected for acute cholecystitis, and more patients died postoperatively (p = less than 0.01). We may consider this difference attributable to the more complex patients handled by the chief resident. Mortality rate among patients with chronic biliary tract disease was less than 1%. We were not able to demonstrate any significant difference in mortality and complication rates between those patients operated by residents, chief residents and senior surgeons.(ABSTRACT TRUNCATED AT 250 WORDS)

Cholelithiasis↗

[The surgical complications of typhoid fever: a report of 10 cases].

This is a retrospective review of 10 consecutive patients with intra-abdominal complications of typhoid fever requiring surgical treatment, during a four-year period at the Instituto Nacional de la Nutrición Salvador Zubirán. There were 7 males and 3 females with an average age of 33.9 years. In 80 per cent of the cases Salmonella typhi was obtained in blood and bone narrow cultures. Five cases developed terminal ileum perforations, 4 massive bleeding related to ulcerated typhoid ileitis and one patient was operated on with the preoperative diagnosis of acute abdomen during the course of severe, toxic, typhoid fever. At laparotomy, no abnormalities were found. Five patients were treated with right hemicolectomy, 3 with local resections and primary closure, and another one, with segmental terminal ileum resection and end to end anastomosis. One patient died of mixed shock and multiple organ failure. This event was secondary to partial dehiscence of the ileo-transverse anastomosis and massive bleeding. Four patients had complications; a) pneumonia, b) urinary tract infection, c) splenic abscess that required splenectomy and: d) intestinal obstruction. All patients were treated with chloramphenicol. We found a high morbidity and mortality rate of the typhoid fever complications. The surgical resection and specific antibiotic therapy are the most effective treatment, however, complications can appear during its treatment.

Adolescent↗

[Intestinal endometriosis: a report of 3 cases].

Between 1978-1990 three patients were surgically treated with different kinds of intestinal endometriosis at the Instituto Nacional de la Nutrición Salvador Zubirán in Mexico City. The first patient had acute appendicitis without dysmenorrhea or pelvic endometriosis detected during laparotomy. The second patient had incomplete intestinal obstruction related to ileo-cecal involvement. She clinically had dysmenorrhea and were found multiple endometriosis implants during operation. After the ileocecal excision suppressive hormonal therapy was given, the patient developed side effects, then surgical resection of the uterus and ovaries were performed. The third patient was a 48-year-old woman who developed a progressive lower intestinal obstruction. She underwent a three-time operative procedure. Lower sigmoid resection was performed and no endometriosis implants or metastatic disease were found. Postoperative course was uneventful in all patients, no mucosal involvement or associated carcinoma was found. Surgical resection of the affected portions of the bowel was highly effective in each case.

Adult↗