Endometriosis simulating a colonic obstructive neoplasm.
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Biomedical subjects
O Mayzler
Publications and source records attributed to O Mayzler.
Preserving the left arm vein in cases of hemodialysis access generating left internal mammary artery steal syndrome.
In patients undergoing chronic hemodialysis (HD) through an arm arteriovenous fistula (AVF), coronary insufficiency can occur if the patient undergoes a coronary artery bypass graft (CABG) using the ipsilateral internal mammary artery (1-4). Therefore, the creation of a new AVF after CABG should avoid using the arm ipsilateral to the side where the internal thoracic artery was used. In cases where coronary syndrome appears when this advice is not followed, treatment should be offered aimed at overcoming the hemodynamic interference between the diminished coronary supply through the left or right internal mammary artery by closure of the existing fistula, with or without temporary central venous line insertion until the maturation of a new fistula. We suggest a different approach by moving only the arterial inflow site of the AVF to the controlateral subclavian artery, but in addition, leaving the well functioning venous outflow tract intact. In cases of left internal mammary steal it is achieved by creating a conduit running from the right subclavian artery to the left cephalic vein; therefore, creating a new arterial inflow source, connected to the existing functioning old venous outflow tract to maintain an immediately functioning new fistula without a coronary steal.
Journal Article↗
Does supplemental perioperative oxygen administration reduce the incidence of wound infection in elective colorectal surgery?
AIM: An association has been proposed between perioperative administration of 80% oxygen and a lower incidence of wound infection after colorectal surgery. The present study was conducted to assess this hypothesis. METHODS: Thirty-eight patients (ASA classification 1 and 2) undergoing elective colorectal cancer surgery were allocated at random to 2 groups. Group 1 consisted of 19 patients who received an admixture of 80% oxygen and 20% nitrogen during anesthesia through an orotracheal tube and during the 2 first hours in the recovery room through a tight facemask with reservoir. Group 2 consisted of 19 patients who received an admixture of 70% nitrous oxide and 30% oxygen during anesthesia, followed by administration of 30% oxygen delivered by a blender through a tight facemask with reservoir in the same manner than group 1, during the first 2 hours in the recovery room. Wound infection was evaluated daily during hospital stay and after 7 days, 2 weeks, and 1 month. RESULTS: The incidence of wound infection was 12.5% in group 1 and 17.6% in group 2 (p=0.53). CONCLUSIONS: The results of this study showed no reduction in the incidence of wound infection following elective colorectal surgery in patients receiving 80% oxygen during the perioperative period.
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