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Biomedical subjects

J Barak

Publications and source records attributed to J Barak.

26 records · Page 2Linked to original sources
PubMed1981

Postsplenectomy splenic activity.

Evidence of recurring activity of splenic tissue was investigated in patients who had undergone splenectomies. Methods included technetium 99m sulfur colloid scan, serum tuftsin assay, serum immunoglobulin concentration, blood cell counts, and search for Howell-Jolly bodies. Positive scans were observed together with normal levels of tuftsin in 54% of the patients. In 46% of the patients, no splenic activity was detected by scanning and low levels of tuftsin were noticed. The difference in tuftsin levels between the two groups was statistically significant. Howell-Jolly bodies and decreased serum levels of IgM featured all patients. The possible application of combined splenic scan and tuftsin assessment for screening recurring splenic activity in the postsplenectomy population at great risk is suggested.

Adolescent↗
PubMed1980

Partial distal pancreatectomy with a hand-held CO2 laser. An experimental study.

Partial distal pancreatectomy was performed in dogs with CO2 laser. Results were compared with those obtained with use of diathermy and scalpel. Postoperative hyperamylasemia appeared in all the animals. The highest peaks in the laser and scalpel groups were found on the fifth postoperative day, after which they gradually returned to normal; the highest levels appeared in the diathermy group on the 21st day, and returned to normal only after 56 days. Pancreatography showed a sealed duct in the laser and diathermy groups although no duct ligation was performed. Histological study of the laser group disclosed initial thermal injury at the cut section with no damage to the nearby parenchyma, followed later by a smooth, thin scar. In the diathermy and scalpel groups, the injured zone became enlarged later by active parenchymal and interlobular inflammation in the underlying tissue.

Amylases↗
PubMedDate not supplied

Induction of controlled cardiac tamponade in the management of massive unexplained postcardiotomy bleeding. Case report and review of the literature.

Massive unexplained bleeding is a catastrophic complication of open heart surgery. The following paper describes a successful attempt to terminate such a hemorrhage by induction of controlled cardiac tamponade which caused augmentation of mediastinal pressure without hemodynamic decompensation, thereby aiding in hemostasis. This modality has not previously reported. Few events in clinical medicine are so ominous as the major unexplained hemorrhage. Diffuse bleeding from multiple transected small vessels may be controlled by mechanical techniques which apply pressure directly over the bleeding area. However, where the mediastinum is the source of bleeding, application of such a direct pressure with a closed chest, is both technically difficult and potentially risky. Reported attempts to stop bleeding by increasing the mediastinal pressure included the induction of pneumothorax, and the increase of positive end expiratory pressure (PEEP) has been published. To the best of our knowledge, a deliberate induction of controlled cardiac tamponade in order to terminate prolonged unexplained massive postcardiotomy hemorrhage has not been reported so far.

Aged↗
PubMedDate not supplied

Massive arterial air embolism during cardiopulmonary bypass.

Massive arterial air embolism occurred in two patients during 1250 open heart operations. Emergency measures led to complete recovery in both cases. Flow reversal, hypothermia and anti-oedema measures may be adequate in some clinical situations for total recovery after this catastrophic accident.

Cardiopulmonary Bypass↗