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Biomedical subjects

S W Beasley

Publications and source records attributed to S W Beasley.

At least 91 records · Page 5Linked to original sources

Long-term continence in patients with high and intermediate anorectal anomalies treated by sacroperineal (Stephens) rectoplasty.

Thirty-seven patients treated at the Royal Children's Hospital, Melbourne, by Stephens (sacroperineal or sacroabdominoperineal) rectoplasty were reviewed after 5 to 32 years. Continence was assessed using the Kelly, Templeton, Kiesewetter, and Wingspread criteria. Although approximately 20% of the patients were shown to have unsatisfactory control with each clinical scoring system, the remainder have a socially acceptable level of fecal control. Several patient groups had more favorable results than others: (1) females; (2) patients who did not have an abdominal component to their rectoplasty; and (3) patients reviewed more than 10 years after surgery. Twenty-eight patients reached their final level of continence in the first few years and nine improved gradually throughout childhood.

Anal Canal↗

The leadpoint in intussusception.

Fifty-six patients with a pathological lesion at the leadpoint of their intussusception were encountered at the Royal Children's Hospital, Melbourne, over a 16-year period. The most common lesions were Meckel's diverticula, followed by small bowel polyps, lymphosarcomas, and duplication cysts. Age at presentation was the only factor discriminating these patients from patients with idiopathic intussusception. Unlike previous studies, duration of symptoms was not useful in identifying a pathological leadpoint. Hydrostatic reduction was successful in reducing the leadpoint in three of 21 attempts. Neither morbidity nor mortality was encountered in a policy of initial enema reduction of intussusception, regardless of age.

Adolescent↗

Progression of intussusception.

The position of the apex in intussusception indirectly reflects the length of the intussusceptum in the majority of cases in which the intussusception begins in the region of the terminal ileum. The relationship of the apex to the duration of symptoms and the ease of enema reduction suggests that progression of intussusception occurs rapidly after the onset of symptoms and is normally complete by the time the patient presents to hospital. Further increase in length of the intussusception is probably limited by progressive edema of the intussusceptum and by the length of small bowel mesentery available to it. The position of the apex per se is not a contraindication to attempted enema reduction, although once the apex has reached the rectosigmoid region successful enema reduction is less likely.

Barium Sulfate↗

Secondary esophageal surgery following repair of esophageal atresia with distal tracheoesophageal fistula.

During the period 1948 through 1988, 498 patients with esophageal atresia and distal tracheoesophageal fistula were admitted to the Royal Children's Hospital, Melbourne. Fifty patients had a second operative procedure on the esophagus, for anastomotic stricture (30), recurrent fistula (15), both (4), and a postmyotomy diverticulum (1). During the same period, nine patients underwent esophageal replacement and 33 patients a Nissen fundoplication. Improvements in the technique of esophageal anastomosis, and in recent years the use of fundoplication to correct gastroesophageal reflux have led to a marked reduction in the need for secondary surgery to the esophagus after repair of esophageal atresia. Esophageal replacement is rarely required in esophageal atresia and distal tracheoesophageal fistula. One-layer end-to-end esophageal anastomosis using interrupted sutures resulted in the lowest rate of recurrent fistula and anastomotic stricture.

Anastomosis, Surgical↗

Tracheostomy.

The records of all children who had a tracheostomy performed over a 10 year period from January 1979 were reviewed. Altogether 142 patients aged 1 day to 24.8 years received a tracheostomy, 70 in the first year of life. The conditions necessitating tracheostomy were trauma (n = 21), acquired subglottic stenosis (n = 21), subglottic haemangioma (n = 16), Guillain-Barré syndrome (n = 14), Pierre Robin syndrome (n = 9), craniofacial disorders (n = 9), micrognathia (n = 5), and others in 47. In patients successfully decannulated the median period of tracheostomy was 104 days (range 3 days to 9.0 years) and in 25 patients the tracheostomy is still in situ. Eighty four patients (60%) were discharged from hospital with their tracheostomy in situ and no patient was kept in hospital because of a tracheostomy beyond four weeks. There were two tracheostomy related deaths in hospital. Both patients had severe acquired subglottic stenosis secondary to ventilation for lung disease of prematurity. There were no tracheostomy related deaths at home; complications included tracheal granulomas and polyps (n = 19). After removal of the tracheostomy 13 children had a fistula requiring surgical closure and four required revision of the tracheostomy scar. Tracheostomy is well tolerated in small children, with few complications and can be managed safely in the home by the family.

Adolescent↗

Growth after gut resection for Crohn's disease.

Seventeen children underwent 19 bowel resections as part of their management of Crohn's disease. Thirteen children had evidence of retardation of linear growth preoperatively, of whom 12 exhibited catch up growth, crossing at least one centile band, after resection. Seven of the 12 showed early signs of puberty at the time of resection and one child was regarded as being fully pubertal. All children were symptomatic before their surgery; at one year 11 were asymptomatic and three others were substantially improved. Surgical resection of localised Crohn's disease, followed by adequate nutritional support has lead to catch up growth and a prolonged symptom free period in most of our patients and this was not limited by their age or stage of puberty.

Adolescent↗

Developments in the management of oesophageal atresia and tracheo-oesophageal fistulas.

Since 1948, when the first patient with oesophageal atresia and a tracheo-oesophageal fistula was treated successfully at the Royal Children's Hospital, Melbourne, 569 infants with one or both conditions have been managed at that institution. The mortality rate in those in whom surgical repair of the oesophageal atresia and distal tracheo-oesophageal fistula was attempted has declined from 55% in the first 10 years to less than 1% in the last 10 years of the series. Earlier diagnosis and improvements in resuscitation, transport, neonatal intensive care, anaesthesia, the treatment of associated anomalies and surgical technique all are likely to have contributed to the decline in the mortality and morbidity rates. Problems which remain unresolved in part relate to the aetiology and embryogenesis of oesophageal atresia, the management of long-gap atresia, and the treatment of gastro-oesophageal reflux and tracheomalacia. This article outlines the improvements in management which have occurred already and speculates about what the future may hold.

Esophageal Atresia↗

Pulmonary sequestration and related congenital disorders. A clinico-radiological review of 41 cases.

Forty-one children with pulmonary sequestration complex were reviewed. This disease is a spectrum of disorders involving the bronchopulmonary airway, the arterial supply to the lungs, the lung parenchyma and its venous drainage. The review showed pulmonary sequestration to be ubiquitous in its presentation: "classical" features of sequestration occurred in 20 (49%) children studied. The early diagnosis of children with sequestration outside infancy demands a high index of suspicion by the radiologist. The role of angiography in demonstrating an anomalous systemic arterial supply to the lung in suspected bronchial and pulmonary arterial sequestration is described in relation to alternative imaging techniques available.

Abnormalities, Multiple↗

Chest wall deformity in patients with repaired esophageal atresia.

Chest wall deformities developed after thoracotomy for esophageal atresia, in 77 of 232 patients (33%) who did not have a congenital vertebral anomaly. Anterior chest wall asymmetry was present in 47, scoliosis in 18 and a combination of both in 12 patients. Scoliosis was convex away from the incision in two thirds of those affected. Anterior chest wall deformity was more common in patients greater than 25 years of age, and scoliosis was more common in patients who had had multiple thoracotomies. Breast surgery to minimize inequality was required in three female patients, and spinal surgery in one patient. Twenty-two of 53 patients with a congenital vertebral anomaly developed scoliosis, eight of whom required surgery. The scoliosis was probably the result of the vertebral anomaly in these patients, who are particularly at risk for progressive deformity.

Adolescent↗

The relationship between cerebral palsy and cryptorchidism.

This study examined the reported association between cerebral palsy and cryptorchidism. A comparison was made among 25 boys with cerebral palsy under the age of 2 years and 6 months, 25 boys with cerebral palsy aged between 5 and 10 years, and age-matched controls. The testes remained in the same position with age in boys with cerebral palsy, whereas in normal children the testes were slightly lower initially (P less than .005) and became lower still with growth (P less than .001). This result, taken in conjunction with previous studies, casts doubts on the theories of early damage to the hypothalamic-pituitary-gonadal axis as the cause of maldescent in cerebral palsy. It is postulated that any apparent increase in cryptorchidism in older patients with cerebral palsy may be caused by spasticity of the cremaster muscle leading to pathologic retraction of the testis out of the scrotum.

Age Factors↗

Current surgical management of oesophageal atresia and/or tracheo-oesophageal fistula.

During the last 40 years, 579 babies with oesophageal atresia and/or tracheo-oesophageal fistula have been admitted to the Royal Children's Hospital (RCH), Melbourne. There are 393 survivors. Advances in the surgical management have contributed to lowering the morbidity and mortality rates. This paper describes current surgical management of each anatomical variant at RCH; specific reference is made to the problems of the long gap oesophageal atresia and prematurity.

Esophageal Atresia↗

Adults who survived repair of congenital oesophageal atresia and tracheo-oesophageal fistula.

One hundred and twenty five adults who were born before 1969 with oesophageal atresia or tracheo-oesophageal fistula or both and were managed at the Royal Children's Hospital, Melbourne, were reviewed. Most enjoyed a normal life. Though over half had difficulties in swallowing and symptoms of gastro-oesophageal reflux, the symptoms occurred only occasionally and were regarded as inconsequential by most. One third of the patients had wheeze and a quarter had at least one episode of bronchitis a year, but these interfered little with daily activities. Overall, these results are encouraging for young patients with oesophageal atresia and their families.

Activities of Daily Living↗

The diagnosis of congenital tracheoesophageal fistula.

Congenital tracheoesophageal fistula presents with clinical features of variable types and severity, including choking, coughing, and cyanosis with feeds, pneumonia, and abdominal distension. The rarity of the condition, its nonspecific symptomatology, and limitations in its demonstration by contrast radiology and endoscopy contribute to delays between first presentation and confirmation of the diagnosis. Recognition of symptom complexes and a high index of clinical suspicion should assist early diagnosis. In our experience with 30 infants with "H" fistula, an initial barium swallow demonstrated the fistula in 73%, and in all patients by the third attempt. Refinements in technique have shown contrast radiology to be satisfactory and safe in the initial investigation of infants with suspected congenital tracheoesophageal fistula and enables differentiation from other causes of aspiration.

Child, Preschool↗

Cryptorchidism in spina bifida and spinal cord transection: a clue to the mechanism of transinguinal descent of the testis.

In spina bifida there is a high incidence of cryptorchidism, particularly where the lesion is at or above L2. This article describes the location of the testis in 32 spina bifida patients and the effect of spinal cord transection in neonatal rats: both studies suggest that the spinal cord influences testicular descent. It is already established that androgens, an intact genitofemoral nerve, and the gubernaculum are essential for the transinguinal phase of testicular descent to occur. Yet the mechanism by which testosterone exerts its effect on the gubernaculum remains obscure. To account for all the observed phenomena we postulate that a spinal cord nucleus may exist that is sensitive to androgens and mediates impulses through the genitofemoral nerve to the gubernaculum. Neuronal modulation of the gubernaculum may induce testicular descent.

Adolescent↗