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Biomedical subjects

G Blanco-Rodríguez

Publications and source records attributed to G Blanco-Rodríguez.

14 recordsLinked to original sources

Preoperative catheterization of H-type tracheoesophageal fistula to facilitate its localization and surgical correction.

PURPOSE: The aim of this study was to demonstrate that preoperative catheterization of H-type tracheoesophageal fistula facilitates its identification and surgical correction. METHODS: This is a case series of seven patients with H-type tracheoesophageal fistula. Diagnosis was established in three patients and suspected in two more by means of an esophagogram. Confirmation of fistula was performed by endoscopy in all patients. On the day of surgery, either a rigid bronchoscope or a nasolaryngoscope was introduced into the trachea to localize and catheterize the fistula. Because of the location of the fistula, the surgical correction was performed through the neck in five patients and through the thorax in two patients. The fistulas were easily identified surgically and the corrections were successfully performed in all cases. An extensive dissection was not required in any case. Refistulization, identified by bronchoscopic examination one week after surgery, occurred in one patient. Surgical repair was performed again using same procedure described above. All patients are currently asymptomatic and without any evidence of refistulization. CONCLUSIONS: Preoperative catheterization of H-type tracheoesophageal fistula is useful to facilitate its preoperative identification, to plan the surgical approach, and to decrease operating times and the extent of surgery.

Bronchoscopy↗

A new endoscopic procedure for membranectomy of fenestrated duodenal membranes.

AIM OF THE STUDY: We describe a new endoscopic procedure for membranectomy of fenestrated duodenal membranes. METHODS: With the patients under general anesthesia and tracheally intubated, a flexible video-panendoscope was introduced into the second portion of the duodenum. The fenestrated membrane was visualized and a triple-lumen stone extraction balloon of 15 mm was inserted through the fenestration. After the balloon was insufflated, gentle traction was performed in order to expose the fenestrated membrane and differentiate it from the normal duodenal wall. The orifice was dilated in order to introduce the endoscope and localize the Vater's ampulla. A sphincterotome was used to carry out one or two incisions of 1.5 to 2 cm in the membrane in the opposite direction to the ampulla. RESULTS: The procedure was successfully performed in five patients with a mean surgical time of 50 minutes. None of the patients complained of postoperative pain. Peristalsis was not affected, and patients started intake of oral fluids at approximately 24 hours. On discharge patients were completely asymptomatic, and four patients were followed up for one year following the procedure and remained asymptomatic. One patient who was also asymptomatic did not continue follow-up longer than two weeks after the procedure. CONCLUSION: Endoscopic membranectomy of duodenal membranes is a safe and effective procedure that reduces surgical times, postoperative fasting times and the length of hospitalization, and probably has no postoperative complications.

Child, Preschool↗

Benefits of oral administration of an electrolyte solution interrupting a prolonged preoperatory fasting period in pediatric patients.

PURPOSE: The aim of this study was to evaluate the benefits of an oral isosmolar solution of electrolytes (ISE) administered to interrupt a prolonged fasting period in children undergoing an elective surgical procedure under general anesthesia. METHODS: Forty unpremedicated children aged 3 to 12 years, ASA I, undergoing a surgical procedure requiring general anesthesia were assigned randomly to 1 of 2 groups. Group 1 consisted of patients with an overnight fasting period for milk and solids of at least 8 hours. In group 2, patients under a similar fasting period received a volume of 4 mL/kg of an oral ISE 3 hours before completing the fasting period. After anesthetic induction, blood glucose level (BGL) was quantified, and patients underwent an endoscopic examination to obtain the gastric content to determine the residual gastric volume (RGV) and pH levels. RESULTS: In group 1, the RGV was 0.78 +/- 0.44 mL/kg, pH was 1.75 +/- 0.38, and BGL was 86.4 +/- 14.5. In group 2, the RGV was 0.40 +/- 0.29 mL/kg, pH was 3.18 +/- 0.61, and BGL was 85.1 +/- 12.6. Only RGV and pH were significantly different between groups. CONCLUSION: A prolonged fasting period interrupted with oral ISE administration resulted in an RGV of low risk, without counterbalancing a potential fasting-induced hypoglycemia.

Blood Glucose↗

[Congenital cystic adenomatoid malformation of the lung. A report of 12 cases].

The congenital cystic adenomatoid malformation of the lung is uncommon. In the Hospital Infantil de México Federico Gómez, 12 cases have been seen over a period of 31 years, which points out how rare this malformation is. There was a male predominance, and 75% of the patients had symptoms by 8 months of age. The main complaints were progressive respiratory failure in the newborn period and recurrent lung infection in older children. Treatment was surgical in all cases. There was only one fatality due to cardiac failure.

Child↗

[Diaphragmatic eventration. Our experience with 50 cases].

Diaphragmatic eventration is the abnormal elevation of the diaphragm as a result of paralysis, aplasia or atrophia of the muscular fibers. This is a diagnostic problem specially in the newborn. The objective of this report is present the clinical course and surgical management of 50 cases attended in the Hospital Infantil de México Federico Gómez. Of them, 56% were males; eight were newborns; five with previous surgery. The clinical course was variable; the landmark was the chest X-ray findings. There were operated 36 cases. The right diaphragm was the most frequent affected; the surgical management was with thoracotomy in the great majority of them. In 30 cases had good evolution two years after surgery.

Child, Preschool↗

[Congenital lobar emphysema].

This article includes the way cases of congenital lobe emphysema were treated at the Hospital Infantil de México "Federico Gómez" during 1971 to 1989. A total of 17 cases were gathered, 13 were males and 4 were females; admittance age varied from 13 days to 3 years. The children's main symptoms were respiratory failure and cyanosis. The diagnosis was enhanced by a chest X-ray where lobe hyperclarity was detected, as well as a deviation of the mediastinum and a collapsed lung. A lobectomy was performed in all cases. The upper left lobe was seen to be the most affected. Two of the children died. It is important to recognize this disease early on and conduct prompt surgical treatment.

Child, Preschool↗

[Congenital esophageal diverticulum].

The congenital or acquired variety of esophageal diverticulum is a rare childhood disease. Reported is a case-study which deals with a five year old patient who arrived at our hospital complaining of a constricture at the cricopharyngeal level. A month later he returned to the hospital with dysphasia and regurgitation; the X-rays and endoscopic diagnosis showed stenosis of the esophagus and the presence of an esophageal diverticulum. Esophageal dilatations were carried out until an acceptable esophageal diameter was reached. Later on, the surgical removal of the diverticulum was performed without any complications. The histopathological study showed the congenital nature of the diverticulum. The patient's recovery went well and is currently considered as cured.

Child, Preschool↗