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Biomedical subjects

E Cuesta

Publications and source records attributed to E Cuesta.

9 recordsLinked to original sources
PubMed2006

Role of computed tomography and magnetic resonance imaging in aortobronchial fistula diagnosis following aortic coarctation reparative surgery. Report of two cases.

Aortobronchial fistula (ABF) is an uncommon complication of aortic coarctation repair which may occur years after successful coarctation correction. It is invariably fatal if not diagnosed and treated. ABF diagnosis poses a challenge for clinicians and radiologists because of the difficulty in detecting the fistula and the risks associated with some of the diagnostic procedures. Two cases of ABF occurring 1 and 20 years after reparative surgery of aortic coarctation are reported. The advantages and disadvantages of different imaging procedures for the evaluation of patients with suspected ABF are reviewed and the role of computed tomography angiography and magnetic resonance imaging is underlined.

Adolescent↗
PubMed2000

Percutaneous vertebroplasty: a special syringe for cement injection.

Percutaneous vertebroplasty is an effective treatment for many focal vertebral lesions. Methyl methacrylate is too viscous to be handled without difficulty in the conventional way because injection time is short. The operator is left with little time and must fumble with multiple syringes. We describe a special screw-system syringe that decreases the effort needed to inject the cement. In addition, it can standardize the injection pressures and control the injected volume because the threaded plunger affords greater control of injection pressure and volume delivered than does the conventional method.

Adult↗
PubMed2000

[Incomplete sagittal septum of the bladder].

OBJECTIVE: To describe an additional case of incomplete sagittal septum of the bladder. METHODS: A case of incomplete sagittal septum of the bladder in a young, asymptomatic patient with paralysis of both lower limbs is presented and literature is briefly reviewed. RESULTS: The diagnosis was made by intravenous urography performed five years after the accident that had caused the paralysis. Radiological evaluation showed an "apple heart" bladder with reduced capacity. No treatment was required. CONCLUSIONS: Incomplete sagittal septum of the bladder is rare. To our knowledge, only 7 cases have been previously reported. Incomplete sagittal septum is like complete septum, but both cavities communicate anteriorly or distally, according to the direction and depth the septum protrudes into the bladder.

Adult↗
PubMed1998

[Cancellations in pediatric surgery].

UNLABELLED: Cancellations have an important role in the effectiveness of the surgical schedule. OBJECTIVE: Analyze the evolution of the cancellations during the years 1994-1997, after institution of several corrective measures. MATERIAL AND METHOD: We started in 1994 together with the Quality Unit of the Hospital, a program to reduce surgical cancellations. It consisted in improvement of parents information, surgical schedule centralization, and increasing the awareness of the importance of constant improvement. Cancellations have been divided in: inevitables and inevitables, and analyzed for the entire Service and for each speciality. RESULTS: A significant reduction of cancellations have been obtain (from 12.38% in 1992 to 3.35% in 1997). The inevitable causes (no presentation, inadequate preparation and lack of time in the surgical room) have shown the most improvement. Although the inevitable causes (intercurrent disease) were also significantly improved, after obtaining prior information of the health of the child, by telephone call or parents advise. ENT is the speciality with greatest improvement by significant reduction of the non presentation and intercurrent disease. CONCLUSION: After corrective measures conjointly with a realistic surgical schedule, prior telephone call and improvement quality concept, have permitted a significant reduction of cancellations.

Ambulatory Surgical Procedures↗
PubMed1984

Comparative study of the cytoprotective effects of anticholinergic agents on the gastric mucosal lesions produced by intragastric administration of 0.6 M HCl in rats.

CFY strain rats (both sexes, 180-210 g) were fasted for 24 hr. Several anticholinergic agents atropine, oxyphencyclimine, propantheline, trantheline, hexocyclium) were administered (i.p.) in equimolar doses (28.78 nM X kg-1), and to compared to the cyto-protective effect of atropine sulfate (0.01 mg X kg-1). Their effects were studied in (1) one hour pylorus-ligated rats, being given when the surgical procedure had just finished: volume and acid output were measured; (2) the gastric mucosal lesions induced by 0.6 M HCl. Drugs were applied 30 min before the administration of HCl (1 ml, i.g.). Rats were killed 1 hr later and the number and severity of lesions were calculated. We found that (1) atropine, oxyphencyclimine, and propantheline did not significantly decrease acid secretion, while trantheline and hexocyclium inhibited acid output; (2) all drugs provided significant protection against the gastric damage induced by HCl; (3) no significant difference was found in the extent of protection produced by the different drugs in the HCl-model. We conclude that atropine, oxyphencyclimine, and propantheline are gastric cytoprotective agents.

Animals↗
PubMed1983

Cytoprotecting-effect of cimetidine: experimental evidence in the rat gastric mucosal lesions induced by intragastric administration of necrotizing agents.

Contradictory data have been found on cimetidine-induced gastric cytoprotection. In our paper the effect of cimetidine administered intraperitoneally in doses of 2.5, 10 and 50 mg X kg-1, on: 1. The gastric acid secretory responses in 1 and 4 hr pylorus-ligated rats, and 2. The rat gastric mucosal lesions induced by intragastric administration of 0.6 M HCl, 0.2 M NaOH, 96% ethanol and 25% NaCl is discussed. It was found that: 1. Cimetidine dose-dependently inhibited the gastric acid secretion in 1 and 4 hr pylorus-ligated rats, but a dose of 2.5 mg X kg-1 did not exert any significant inhibition; 2. All doses of cimetidine significantly prevented the gastric lesion development induced by different necrotizing agents (0.6 M HCl, 0.2 M NaOH, 96% ethanol, and 25% NaCl); 3. The cytoprotecting dose of cimetidine was of 2.5 mg X kg-1; and 4. The duration of cimetidine-induced cytoprotection was 1 hr long before the administration of the necrotizing agent. These results suggest a real cimetidine-induced gastric cytoprotection.

Animals↗
PubMedDate not supplied

Preoperative carbohydrate antigen 195 (CA195) and CEA serum levels as prognostic factors in patients with colorectal cancer.

We evaluated in 214 patients with primary colorectal cancer the prognostic value of the preoperative serum levels of CEA and CA195. For CEA these levels were above the cutoff of 6 ng/ml in 31.3% of patients, whereas for CA195 they were higher than 12 U/ml in 35.9% of patients. The simultaneous use of both antigens increased the sensitivity to 49%, which was significantly higher than that of CEA (p < 0.001) and CA195 (p < 0.01) taken singly. The mean preoperative CEA levels were significantly (p < 0.001) correlated with Dukes' stage only, while there was a significant correlation between preoperative serum levels of CA195 and Dukes' stage (p < 0.001), grade of differentiation (p < 0.01) and tumor location (p < 0.05). The results indicated that high preoperative serum levels of CEA and CA195 were associated with a shorter overall survival (p < 0.0001). In addition, separate Cox multivariate analysis showed that preoperative CA195 was, after Dukes' stage, the strongest factor to predict overall survival (p < 0.0001).

Adult↗