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Biomedical subjects

N V Freeman

Publications and source records attributed to N V Freeman.

At least 19 recordsLinked to original sources

Bladder capacity in infants.

Bladder capacity was measured at micturating cystourethrography and normal ranges were established for children up to 1 year of age. Bladder capacity was compared with patient weight and distance from first lumbar to third lumbar vertebrae (L1 to L3). The simplified formula--Capacity (mL) = 7 x weight (kg)--was shown to give a reliable estimate of the expected bladder capacity in infants independent of age; this is useful in those infants whose weight lies outside the normal range for their age. Similarly, a formula was deduced relating expected bladder capacity to the measured L1 to L3 distance on an anteroposterior radiograph, which is of potential use to radiologists.

Body Weight

Pancreatic ascites in childhood.

A case is reported of pancreatic ascites in a 14-year-old girl who had acute and chronic pancreatitis associated with pancreatic duct stones and a ruptured pancreatic duct. Abdominal erythema ab igne was considered to be an important physical sign of genuine severe abdominal pain.

Abdominal Muscles

Could the stomach site help predict outcome in babies with left sided congenital diaphragmatic hernia diagnosed antenatally?

The site of the stomach in 36 babies presenting postnatally with left sided congenital diaphragmatic hernia (CDH) was assessed as a predictor of outcome. Babies with a thoracic stomach had a higher mortality (P less than .0005), and more frequently developed significant persistent foetal circulation (PFC) (P less than .001), than babies in whom the stomach was normally sited. Normal stomach site was associated with 100% survival and only a 20% incidence of significant PFC. It is possible that stomach site may be the most accurate predictor of outcome in left-sided CDH diagnosed antenatally, and may thus help in planning perinatal and postnatal management. It may also open the door for prenatal surgical correction of CDH by predicting a poor prognostic group or, perhaps more importantly, by predicting those babies with a good prognosis in whom antenatal surgery should not be attempted.

Female

Functional assessment of colonic interposition with 99Tcm-labeled milk.

A prospective study was performed to evaluate the use of radionuclide imaging in the assessment of patients who have undergone esophageal reconstruction. Dynamic radionuclide imaging was performed on ten patients aged 11 months to 11 years who had undergone colon interposition via the normal esophageal route for esophageal atresia. Patients were considered clinically unsatisfactory if at the time of imaging feeding was troubled, or if weight gain had fallen to below the third centile before operation and remained below after operation. Each patient underwent erect imaging with a small milk feed labeled with 10 to 20 MBq (250 to 500 muCi) 99Tcm DTPA adjusted according to body surface area; supine studies were subsequently performed on five patients. All five clinically unsatisfactory patients showed conduit emptying delayed beyond 45 minutes and/or spontaneous reflux, significantly different from the clinically satisfactory patients (X2 = 6.4, P less than .02). Conduit complications were subsequently identified in three of the five clinically unsatisfactory patients. Radionuclide imaging with radiolabeled milk was found to be well tolerated, and obtained results that were clinically useful. These results suggest that dynamic radionuclide imaging can be more widely applied in the assessment of esophageal substitutes.

Alanine

Choristoma of the soft palate.

A 2-month-old girl presented with a history of intermittent cyanosis and dyspnea after feeding. This was found to be due to a 2 cm long polypoid lesion attached to her soft palate. This was removed and histologic examination showed it to be choristoma. Three years later she remains well with no evidence of recurrence.

Choristoma

Congenital diaphragmatic hernia: the prognostic significance of the site of the stomach.

Congenital diaphragmatic hernia is associated with a significant mortality, despite intensive treatment. The degree of pulmonary vascular hypoplasia is the main factor affecting mortality. Various features have been considered to determine the prognosis in these infants. In this study a series of 50 consecutive cases of left-sided diaphragmatic hernia has been reviewed. The site of the stomach (abdominal or intrathoracic), demonstrated radiologically and confirmed at operation, has been related to the final outcome (survival or death). An abdominal site is associated with an excellent prognosis (6.2% mortality), while an intrathoracic site is associated with a 58.8% mortality.

England

Colonic interposition.

Intrathoracic colonic interposition in children with esophageal atresia has been used for the past 36 years. The preferred routes have been via the left pleural cavity and retrosternally. Over the past 13 years the author has developed a method using the posterior mediastinum (normal esophageal route) for the colonic interposition. An analysis of 19 personal cases using this method is presented. A further nine cases using either the retrosternal or the Waterston routes and six cases using a modified neonatal operation are included. The evolution of the method currently used by the author is traced. Major problems remain, and further modifications relating to the optimal timing for the colonic interposition, length of colon graft, and sitting of the lower cologastric anastomosis continue to be tried and are discussed. The function of the graft has been studied with ten patients using 99Tc-labeled milk. The results of this study (unpublished) are presented. Gravity is shown to be the major factor influencing the onward passage of milk and food between the colon and stomach.

Age Factors

"High" anorectal anomalies treated by early (neonatal) operation.

Between 1973 and 1983, 18 patients with "high" anorectal anomalies were treated by one of the authors (N.V.F.) by immediate sigmoid loop-colostomy, followed by a sacroperineal or abdominosacroperineal pull-through operation as soon as possible thereafter. This was performed in seven patients between 1 and 14 days, in seven patients between 15 and 40 days, and in four patients between 60 and 120 days. Daily anal dilatations were started 7 to 10 days postoperatively and continued until the anus was soft and supple. The colostomy was then closed, the aim being to complete all treatment by the age of 3 to 4 months. Continence was assessed using Kiesewetter's criteria. Results in 70% were "good", 18% "fair", and 12% "poor". The clinical results are discussed together with the possible advantages of definitive surgery in the neonatal period for "high" anorectal anomalies.

Abnormalities, Multiple

Purpura fulminans in neonates and childhood.

Three cases of purpura fulminans are reported. A five-year-old boy was successfully treated for purpura fulminans but had autoamputation of both legs and autolysis of bladder and urethra. He did not show any sign of shock at the onset of the disease. However, before an irreversible change of the skin lesion and organ involvement occurred, prompt diagnosis was effected, and aggressive treatment was given. An eight-day-old girl suffered from purpura fulminans at her four extremities, skull, bladder, ovary and vagina. Interesting findings were obtained in case 2, who had a positive family history. Several black spots in the extremities had disappeared spontaneously before admission, whereas the other lesions got progressively worse, with subsequent severe attack. Her general condition was not parallel to the severity of the disease. A 20-day-old boy had purpura fulminans after severe aspiration pneumonia, and showed a typical clinical course of the disease. In all patients, sudden drop of Hb and leukocytosis occurred after the skin lesion appeared. The diagnosis was unequivocal in these cases. Clotting time and FDP were good indicators of the progress of the disease in conjunction with the clinical features. Prompt diagnosis and aggressive therapy are necessary, not according to the patient's condition, but according to the laboratory findings and the serious nature of the disease. Internal haemorrhage must be considered as well as the skin lesion, this being a fatal complication.

Child, Preschool

A prospective survey of the indications and morbidity of circumcision in children.

Both the British Medical Association and the American Academy of Pediatrics recommend that circumcision should only be performed for medical reasons. No one has ever described which reasons are actually used, nor measured the morbidity of the procedure. Of 140 boys coming to day-case elective circumcision between the ages of 3 months and 14 years (mean 4.3 years), the commonest cause was a congenital phimosis (42.8%). Four (2.8%) patients required acute readmission postoperatively, and a further 4 developed meatal stenosis, requiring a formal meatotomy. Of 99 patients followed up in detail, 46% vomited, 36% oozed, 19% did not pass urine for more than 12 h and 26% could not wear pants for more than 7 days. Childhood circumcision has an appreciable morbidity, and should not be recommended without a medical reason.

Adolescent