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A T Bosenberg

Publications and source records attributed to A T Bosenberg.

10 recordsLinked to original sources
PubMed2005

Anatomical considerations of the pediatric ilioinguinal/iliohypogastric nerve block.

BACKGROUND: The ilioinguinal/iliohypogastric nerve block is safe, effective and easy to perform in order to provide analgesia for a variety of inguinal surgical procedures in pediatric patients. A relatively high failure rate of 10-25% has been reported, even in experienced hands. The aim of this study was to determine the exact anatomical position of the ilioinguinal and iliohypogastric nerves in relation to an easily identifiable constant bony landmark, the anterior superior iliac spine (ASIS) in neonates and infants. The current ilioinguinal/iliohypogastric nerve block techniques were also evaluated from an anatomical perspective. METHOD: Dissections were performed on a sample of 25 infant and neonatal cadavers (mean weight = 2.2 kg; mean height = 45.6 cm). The distance from the ASIS to both the ilioinguinal and iliohypogastric nerves, on a line connecting the ASIS to the umbilicus was carefully measured using a digital caliper. Three techniques, commonly used in clinical practice, were simulated on the anatomical specimens. RESULT: The left and right ilioinguinal nerves were closer to the ASIS than previously described, i.e. 1.9 +/- 0.9 mm (mean +/- sd) and 2.0 +/- 0.7 mm, respectively. The mean distance from the left and right iliohypogastric nerves to the ASIS are 3.3 +/- 0.8 mm and 3.9 +/- 1.0 mm, respectively. CONCLUSIONS: We suggest that the high failure rate of the ilioinguinal/iliohypogastric nerve block in this age group could be due to lack of specific spatial knowledge of the anatomy of these nerves in infants and neonates. This cadaver-based study suggests an insertion point closer to the ASIS, approximately 2.5 mm (range: 1.0-4.9) from the ASIS on a line drawn between the ipsilateral ASIS and the umbilicus.

Cadaver↗
PubMed1992

Anaesthesia without tears.

Rectal induction of anaesthesia is a useful method but is not widely used in South Africa. We studied the onset of action and side-effects of 1% methohexitone administered rectally in a dose of 20 mg/kg to 110 preschool children. Ninety-one per cent were adequately sedated for inhalation induction by mask within 10 minutes, and all by 15 minutes, of drug administration. There was no evidence of significant cardiovascular or respiratory depression and only minor complications such as faecal soiling (11.8%) and hiccough (3.6%) were noted. The technique has been favourably received by parents, surgeons and nursing staff and has now become routine practice.

Anesthesia, Rectal↗
PubMed1992

Intralingual cysts of foregut origin.

Intralingual cysts lined by epithelium of foregut origin are rarely reported. We present 16 patients seen over an 8-year period (1983 to 1990) with such lesions. Respiratory and squamous epithelium were the most commonly encountered. These unusual cysts generally presented in the neonatal period with feeding difficulty. Two children had multiple cysts. Histological varieties of epithelia are described and the clinical features are discussed. From our experience we conclude that these cysts are adequately treated by complete surgical excision through a sagittal glossal split. This can be safely done electively in the neonatal period. Cyst aspiration was found to be inadequate definitive treatment.

Cysts↗
PubMed1988

Strenuous exercise causes systemic endotoxemia.

Eighteen triathletes were studied before and immediately after competing in an ultradistance triathlon. Their mean plasma lipopolysaccharide (LPS) concentrations increased from 0.081 to 0.294 ng/ml (P less than 0.001), and their mean plasma anti-LPS immunoglobulin G (IgG) concentrations decreased from 67.63 to 38.99 micrograms/ml (P less than 0.001). Both pretriathlon plasma LPS and anti-LPS IgG levels were directly related to the intensity of training (P less than 0.02 and P less than 0.01, respectively). It is possible that training-induced stress led to some leakage of LPS into the circulation, which, in turn, resulted in self-immunization against LPS. The effects on athletic performance in relation to exercise-induced changes in plasma LPS and anti-LPS IgG levels require further investigation.

Adult↗