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Biomedical subjects

N P Madden

Publications and source records attributed to N P Madden.

11 recordsLinked to original sources

Incarcerated inguinal hernia in premature babies--a report of two cases.

UNLABELLED: We highlight the morbidity of incarcerated inguinal hernia in very low birthweight (VLBW) infants by presenting a report of two cases. Our aim is to raise the question of the optimal timing of surgery when this common problem presents on the neonatal unit. In each of our cases the hernia was diagnosed but surgery was delayed, as per normal policy on the unit, pending growth of the baby and improvement in respiratory status. Both babies suffered significant morbidity when the hernias subsequently became acutely incarcerated. CONCLUSION: In conclusion, we question whether the widespread practice of delayed surgery for inguinal hernia in VLBW infants should be reconsidered.

Hernia, Inguinal↗

Simple incision: a safe and definitive procedure for congenital duodenal diaphragm.

BACKGROUND: Duodenal diaphragms generally are treated by either a duodeno-duodenostomy or excision. The former is a bypass procedure that involves a major anastomosis with its inherent postoperative problems, whereas the latter may result in inadvertent damage to the biliary and pancreatic ducts. To circumvent these problems, the authors used the technique of incision of the diaphragm on its lateral aspect. METHODS: Medical records of five children who underwent surgery for a perforate duodenal diaphragm during the period of 1992 through 1994 were reviewed retrospectively. All patients underwent a similar procedure. A longitudinal duodenotomy was made and the diaphragm incised on its anterolateral aspect. The cut edges of the diaphragm were oversewn, and the duodenotomy closed in "Heineke-Mikulicz" fashion. RESULTS: At a follow-up ranging from 1 to 3 years, all patients are growing normally and remain free of any obstructive symptoms. CONCLUSIONS: This simplified approach is a safe and physiological way of restoring the duodenal continuity and is associated with a highly satisfactory outcome.

Child, Preschool↗

Mild dilatation of the fetal kidney: a follow-up study.

OBJECTIVE: To assess morbidity in children with mild prenatally detected pelvicalyceal dilatation and to document the natural history of this ultrasound finding in post-natal life. PATIENTS AND METHODS: A retrospective (on-going) study was carried out in 29 children (39 kidneys) with mild dilatation confined to the pelvis and/or calices confirmed on initial post-natal ultrasound scan. Re-evaluation was carried out at a mean age of 4.2 years (range 1.5-7.8). Clinically, each patient's history, height, weight and blood pressure were recorded. On ultrasound examination the renal length, collecting system appearances and dimensions were recorded. RESULTS: Vesico-ureteric reflux was demonstrated in 1 of 14 infants who underwent neonatal micturating cystourethrography. During cumulative follow-up totaling 122 years, there were only two documented episodes of urological morbidity, i.e. one episode of unexplained haematuria and one of urinary tract infection. By a mean age of 4.2 years the ultrasound appearances had reverted to normal in 69% of kidneys. In 31% dilatation persisted and was unchanged or diminished in severity. No case of increasing dilatation was seen. Renal growth was normal in 97% of kidneys. CONCLUSIONS: Mild dilatation of the fetal urinary tract is a common prenatal ultrasound finding. When confined to the renal pelvis and/or calices it is of doubtful clinical significance and is associated with a low level of morbidity in infancy and early childhood. Invasive investigation in post-natal life is not justified.

Child↗

Spontaneous regression of neonatal fibrosarcoma.

We report a case of fibrosarcoma, which presented in a two week old boy. Excision was not performed because it would have required mutilating surgery. The tumour regressed and was impalpable by 7 months of age. The patient is tumour free at 4 years of age. This is the first reported case of spontaneous regression of a fibrosarcoma. The literature is reviewed. We conclude that the chances of metastasis are low, tumours are likely to respond to chemotherapy, and mutilating surgery is not appropriate initial treatment for infantile fibrosarcomas.

Bone Neoplasms↗

Antenatally detected pelviureteric junction obstruction. Is non-operation safe?

We report follow-up data (minimum of 1 year) on 63 kidneys with antenatally detected pelviureteric junction obstruction, as defined by renographic criteria. The condition was bilateral in 10 patients (i.e. 20 kidneys), 2 patients had unilateral obstruction with contralateral multicystic dysplastic kidneys, and 41 patients had unilateral obstruction with a normal contralateral kidney. In the latter group, 29 (71%) had good function (greater than 40%) at initial assessment. Of the 63 kidneys, 24 (38%) were operated upon following initial assessment, mainly for impaired function. Of 39 patients, initially managed non-operatively, 8 (21%) were operated upon subsequently: 3 for deteriorating function (2 of whom have been reassessed and both have regained their lost function) and 5 for other renographic or ultrasonic indications). Of the original 63 kidneys, 31 (49%) continue to be managed non-operatively; 16 of these (52%) show improving ultrasound appearances, 8 of 17 studied show improved drainage, and all unilateral cases have stable good function. It is concluded that non-operative management of selected cases of antenatally detected pelviureteric junction obstruction is safe.

Female↗

Scalp tumours mimicking encephaloceles.

Two neonates presented with benign scalp tumours that mimicked encephaloceles. In the more recent case ultrasonography confirmed that the tumour was extracranial.

Diagnosis, Differential↗

Surgery, sepsis, and nonspecific immune function in neonates.

An audit of 143 neonatal surgical operations identified low birth weight infants as being at particular risk of developing post-operative sepsis following major surgical trauma. Activity of the nonspecific immune system was examined pre- and post-operatively in order to elucidate the susceptibility to post-operative sepsis of these infants. A chemiluminescence micro-method was developed specifically for this purpose. Neonatal plasma was shown to have significantly impaired opsonising activity, and activity was further reduced in low birth weight infants. Levels of immunoglobulin and complement factors were also reduced, particularly in the low birth weight infant. Following major surgical trauma polymorph activity was significantly lower in low birth weight infants than in mature neonates.

Anti-Bacterial Agents↗

Streptococcus milleri in appendicitis in children.

A retrospective survey of 253 appendectomies performed on children over a period of one year was carried out. Streptococcus milleri was isolated from pus in 11 (29%) of the 38 children who developed postoperative infections; it was the most commonly identified pathogen in these children. It is concluded that S milleri is a significant pathogen in childhood appendicitis, and that this fact should be taken into account when antibiotic therapy is being planned.

Adolescent↗