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Biomedical subjects

M Heifetz

Publications and source records attributed to M Heifetz.

At least 19 recordsLinked to original sources
PubMed1995

Intraosseous regional anesthesia as an alternative to intravenous regional anesthesia.

A series of 109 orthopedic operations was performed under intraosseous regional anesthesia on the upper and lower limbs. Anesthesia was satisfactory in 106 of the cases; in the other three, inadequate anesthesia was caused by faulty technique. The spread of lidocaine into the bone and venous network was demonstrated by radiography, and the blood levels after tourniquet release were below the toxic level. Intraosseous regional anesthesia proved to be a valuable technique to be used whenever intravenous anesthesia fails or is not feasible. Injection into cancellous bone (osteoclysis) is easily and quickly performed under aseptic conditions, and there were no systemic complications.

Adult↗
PubMed1991

Short pancreas in polysplenia syndrome.

Two cases with the polysplenia syndrome also had a short pancreas. To the best of our knowledge the radiologic characteristics of this anatomic anomaly have not yet been reported. Both cases were asymptomatic with regard to their anomaly-complex. The radiologic findings of the short "pancreas" are similar to the only pathologic description of this association. The awareness of this association led to the diagnosis of the second case after a few months only. A physician performing ERCP in the polysplenia syndrome should keep in mind the possible presence of the "short pancreas" when the whole length of the pancreatic duct is not visualized.

Abnormalities, Multiple↗
PubMed1991

Air in vagina. Indicator of intrapelvic pathology on CT.

Computed tomography of the normal female pelvis may show the presence of a tiny air bubble within the vagina. Among 2,800 female abdomino-pelvic CTs, 27 were found to contain large amounts of intravaginal air. Twenty-three patients suffered from pelvic malignancy while in 4, non-tumorous pelvic pathology was present. Detection of air bubbles in the vagina is abnormal and indicates, in the majority of cases, an intrapelvic malignancy.

Adult↗
PubMed1983

Fatty replacement of lower paraspinal muscles: normal and neuromuscular disorders.

The physiologic replacement of the lower paraspinal muscles by fat was evaluated in 157 patients undergoing computed tomography for reasons unrelated to abnormalities of the locomotor system. Five patients with neuromuscular disorders were similarly evaluated. The changes were graded according to severity at three spinal levels: lower thoracic-upper lumbar, midlumbar, and lumbosacral. The results were analyzed in relation to age and gender. It was found that fatty replacement of paraspinal muscles is a normal age-progressive phenomenon most prominent in females. It progresses down the spine, being most advanced in the lumbosacral region. The severest changes in the five patients with neuromuscular disorders (three with poliomyelitis and two with progressive muscular dystrophy) consisted of complete muscle group replacement by fat. In postpoliomyelitis atrophy, the distribution was typically asymmetric and sometimes lacked clinical correlation. In muscular dystrophy, fatty replacement was symmetric, showing relative sparing of the psoas and multifidus muscles. In patients with neuromuscular diseases, computed tomography of muscles may be helpful in planning a better rehabilitation regimen.

Adipose Tissue↗
PubMed1982

[Clinical evaluation of high-frequency positive pressure ventilation (HFPPV) in morbid obesity].

Clinical evaluation of High Frequency Positive Pressure Ventilation (H.F.P.P.V.) was made in 12 morbid obese patients undergoing elective gastric bypass or gastric partition operation. A conventional respirator of the Air-Shields type was used working at a frequency varying between 60-90 min and I.E. ratio 1:3. After induction of anesthesia serial measurements of arterial blood gases were performed during conventional Intermittent Positive Pressure Ventilation (I.P.P.V.) and H.F.P.P.V. the patient being his own control. No significant differences between the two methods of ventilation were found with respect to arterial systemic blood pressure, arterial oxygen and carbon dioxide tensions. The relatively low intra-tracheal pressures during H.F.P.P.V. were adequate to produce efficient oxygenation and ventilation with optimal conditions for the surgical intervention.

Adult↗
PubMed1980

Unusual complications of subclavian catheterization.

Infraclavicular subclavian vein catheterization is still a well accepted technique both in operating rooms and intensive care units. Two unusual complications are described: delayed intrathoracic haematoma and severe mediastinal emphysema needing prolonged treatment. The case reports are presented and the complications discussed. The necessity for routine chest x-ray post-operative catheterization and the danger of multiple attempts are stressed.

Aged↗