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Biomedical subjects

C Baeza Herrera

Publications and source records attributed to C Baeza Herrera.

8 recordsLinked to original sources
PubMedDate not supplied

[Carcinoid tumor of the appendix in children].

Carcinoid tumor of the appendix has been known since 1808, and currently we know that it may appear all along the intestinal tract, biliary tree, ovaries, bronchi, lungs and pancreas. It is usually uncommon during infancy, representing 1.8% of all the tumors of the intestinal tract, approximately 70% of the appendiceal tumors and 0.16 to 0.7% of all operated appendixes. It is more frequent in females. With no typical clinical picture, it is usually an incidental finding, as well as a cause of inflammatory processes of the appendix. When the diameter is less than 1.0 cm, the treatment of choice is appendectomy; and in tumors of larger size, surgery is more extensive. Two cases are reported.

Appendectomy↗
PubMedDate not supplied

[Laryngotracheoesophageal cleft].

Laryngotracheoesophageal cleft is a rare congenital anomaly that should be considered in the differential diagnosis of any neonatal respiratory distress aggravated by feeding. Diagnosis is difficult, but can be made by roentgenographic and endoscopic techniques. Roentgenographic evidence of abnormal positioning of nasogastric tubes should arouse suspicion. Repeated bronchoscopy may be necessary to identify the defect. Immediate surgical repair is indicated. Incorporation of part of the esophageal wall into the repair may enhance success. Tracheostomy has been required in all survivors. The embryologic pathogenesis of the anomaly is discussed and it is concluded that the defect is found more often than is reported. We present the fifty-fourth case, the first associated to hypospadias in the world, and the first case in the Mexican literature. This child presented severe respiratory distress. Death occurred on the tenth neonatal day.

Abnormalities, Multiple↗
PubMedDate not supplied

[Acute abdominal complications of ventriculoperitoneal shunts].

A review of critical abdominal complications is made in 150 patients operated on for hydrocephalus in the surgical and neurosurgical services of the Hospital Infantil Legaria through the years 1975--1976. We found 3 colonic perforations (cecum, transverse and rectum), one abdominal perforation, one through the umbilicus, one in vagina, 1 case of plastic peritonitis and two with ascitis. In the majority of cases, such complications were satisfactorily solved; sometimes by extraction of the derivative systems, and some others by primary closure of the lesions. We only had one death. In a larger percentage, other complications were observed, being in order of frequency the following: distal catheter obstruction, proximal obstruction, infection and abdominal wall cysts. We analysed the association with spina bifida (meningocele o myelomeningocele), frequency related to age, sex, etiology and type of shunt. We reviewed the literature and suggest general measures tending to avoid such complications.

Acute Disease↗
PubMedDate not supplied

[An unusual complication of a tricobezoar].

A cause of low intestinal obstruction due to intestinal trichobezoar is presented. This is a very uncommon entity, specially when there is no simultaneous gastric component. The first description was made by Bertram in 1965, and a few cases have been reported in the literature ever since. Such an obstruction appears in approximately 10% of all the cases of trichobezoar, being more frequent in the female, with a peak incidente at 10 to 19 years of age. There is only one case reported in Mexico. The term Bezoar means antidote and has been classified according to the material with which it is formed. It can be frequently observed in patients with psychiatric disorders. Diagnosis is made under clinical and radiological grounds; treatment is by means of enterostomy or intestinal resection.

Bezoars↗
PubMedDate not supplied

[Torsion of the uterine tubes].

Gynecologic pathology in premenarchal girls is infrequent, although torsion of adnexa is a pathology well recognized. Very little has been written on torsion of previously healthy adnexa. Since the diagnosis can be difficult and confussing due to its resemblance with many other pathologic conditions, it is purpose of this paper to report a case the treated in our hospital. The importance of an early diagnosis is stressed in order to avoid loss of the adnexa and a brief review of the literature is made. To our knowledge, this is the first case reported in Mexico.

Child↗
PubMedDate not supplied

[The Peutz-Jeghers syndrome and intestinal invagination].

Peutz-Jeghers syndrome is a autosomal dominant disorder characterized by hamartomatous polyposis of the gastrointestinal tract and mucocutaneous melanin pigmentation. This condition can occur and cause symptoms at any age, but intestinal obstruction due to intussusception is a frequent complication. Two cases of this syndrome associated to intussusception are reported. Both patients were girls, 2 and 8 years old respectively and underwent surgical treatment.

Child↗
PubMedDate not supplied

[Appendicitis in children under 3].

There are many differences between acute appendicitis in the older child and the infants. An understanding of the under three years of age child's response to intra-abdominal infection in contrast to that of the older child and an appreciation for the supportive treatment of the child are vitally important in further lowering the morbidity of young children with acute appendicitis. The purpose of the present study was to investigate the factors contributing to the high perforation rate seen in this age group. A retrospective analysis was done in 88 patients under the age of three who underwent appendectomy. These patients ranged from 4 and 35 months in age. There were 51 (77.4%) male patients. The main complaints were fever, pain and vomiting. Duration of symptoms was more than 24 hours in 80%. Abdominal radiographs showed signs of small bowel obstruction. Peritonitis was found in the majority of the cases (90%). overall morbidity was 31.8% and mortality 1.1%. These data suggest that duration of symptoms is directly proportional to complications rate.

Acute Disease↗