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Biomedical subjects

G Rosa

Publications and source records attributed to G Rosa.

At least 109 records · Page 6Linked to original sources

Evaluation of two applications of methylcyanoacrylate for female sterilization.

Sixty-one women underwent non-surgical female sterilization with two applications of methylcyanoacrylate (MCA) at intervals of two months, three months or four months apart. Bilateral closure (as determined by hysterosalpingogram (HSG) ranged from 86% for women with an interval of four months between applications to 100% for women with an interval of two months between applications. One pregnancy occurred in a women three months after she was declared sterile.

Adult↗

Effects of vecuronium bromide on intracranial pressure and cerebral perfusion pressure. A preliminary report.

The effects of vecuronium 0.1 mg kg-1 on intracranial pressure, heart rate and arterial pressure were evaluated in 20 anaesthetized patients with intracranial tumours undergoing neurosurgery. Apart from a slight decrease in intracranial pressure (-4.9%; ns) which was most probably the result of a concomitant decrease (-14.9%) in central venous pressure, vecuronium 0.1 mg kg-1 was without effect on either cerebral or systemic haemodynamics.

Anesthesia, General↗

The effects of atracurium besylate (Tracrium) on intracranial pressure and cerebral perfusion pressure.

Twenty-five patients with expansive pathologic brain lesions, who were anesthetized with thiopental, nitrous oxide in oxygen, and fentanyl, and who were mechanically ventilated to ensure normocarbia, received atracurium besylate 0.6 mg/kg, intravenously. Intracranial pressure, mean arterial pressure, central venous pressure, heart rate, and end-tidal CO2 were simultaneously recorded for 5 min before and for 10 min after administration of the muscle relaxant. No statistically significant changes were observed after administration of atracurium besylate. These results suggest that atracurium besylate may be used for muscle relaxation during neurosurgical operations, despite its potential for histamine release and excitement of the central nervous system.

Adult↗

Energy cost of and energy sources for alpine skiing in top athletes.

O2 uptake (VO2) during exercise and at 2 min of the recovery along with blood lactate concentration 5 min after exercise were measured in an all-out special slalom (SS) and giant slalom (GS) performed by eight top male athletes and five controls in a field study. Heart rate (HR) was continuously monitored before, during, and after each task. On the basis of an energy equivalent of 3.15 ml O2 X kg body wt-1 for 1 mmol X 1-1 lactate accumulation and the assumption that the amount of O2 consumed in recovery is used to reconstitute approximately phosphates used during the exercise, the total energy cost (delta VO2 tot) could be calculated and subdivided into aerobic, lactic, and alactic fractions. In top athletes, delta VO2 tot was equal during SS and GS [7.28 +/- 1.14 (SD) and 7.47 +/- 0.89 liters for about 55- and 70-s performances, respectively]. When referred to time, the O2 expenditure rate was 2 and 1.6 times VO2max in SS and GS, respectively. In SS and GS, the energy sources were about 40% aerobic, 20% alactic , and 40% lactic metabolism. In control skiers, delta VO2 tot of GS was 6.12 +/- 1.45 liters for 77 s, amounting to about 1.3 VO2max, with the contribution of the different energy sources being roughly the same as in top skiers. HR reached maximal values in 30-40 s in all subjects for all conditions.

Adult↗

[Carcinoma of the gallbladder. Clinico-statistical considerations].

The Authors shortly describe some essential aspects of the gall-bladder primitive cancer, and state their experience about 19 cases of malignant neoplasms observed out of 2280 operations on biliary duct. They confirm the extremely severe prognosis of such disease due to diagnostic delay. As a conclusion, they affirm the simple cholecystectomy is the choice operation in the precocious forms, and suggest the preventive cholecystectomy in the risk patients for such pathology.

Adenocarcinoma↗

Disseminated intravascular coagulation as a complication of ruptured intracranial aneurysms. Report of two cases.

Two patients with recently ruptured intracranial aneurysms underwent surgical repair of these vascular lesions. Postoperatively, they showed clinical and laboratory evidence of disseminated intravascular coagulation (DIC). In both patients severe cerebral ischemic complications occurred. In one case the ischemic complications and the hematological changes were successfully reversed. This syndrome is a potential complication of aneurysmal subarachnoid hemorrhage (SAH), which requires prompt diagnosis and appropriate management. The relationship between hematological changes suggesting DIC and the ischemic complications of SAH should be extensively investigated.

Adult↗