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Biomedical subjects

F Antognini

Publications and source records attributed to F Antognini.

At least 19 recordsLinked to original sources
PubMed2000

Laparoscopic adrenalectomy by the anterior transperitoneal approach: results of 108 operations in unselected cases.

BACKGROUND: The feasibility, safety, and results of 108 laparoscopic anterior transperitoneal adrenalectomies (six bilateral) were evaluated in a series of 105 patients. Three patients with a preoperative diagnosis of primary adrenal carcinoma were excluded from the study. METHODS: A total of 102 patients were included in the study based on exhaustive endocrinological and imaging assessment. Twenty-nine patients with nonsecreting adenoma, 34 with aldosterone-producing adenoma, 27 with cortisol-producing adenoma (five bilateral), 13 with pheochromocytoma (one bilateral), two with androgen-secreting adenoma, and three with metastases were considered eligible for adrenalectomy. Lesion size ranged from 3.5 to 12 cm. Concurrent surgical procedures were performed in 10 patients (9.8%). RESULTS: One (0.9%) intraoperative complication, a colon tear in a bilateral adrenalectomy, required conversion. There were two (1.9%) postoperative complications: one patient with thrombocytopenia developed hemoperitoneum and required a second laparoscopic procedure, and an intraabdominal abscess was treated medically. Mean postoperative hospital stay was 2.5 days (range, 1-7 days). Postoperative mortality was 0.9%; the patient with the colon tear died of sepsis 60 days after the operation. At a mean follow-up of 30 months (range, 1-62), normalization or improvement in hormone levels was observed in all patients with secreting adenomas, and significant improvement or cure was achieved in all patients with hypertension. CONCLUSION: Patients with secreting and nonsecreting adrenal lesions can be treated safety and effectively by laparoscopy with the anterior transperitoneal approach.

Adrenalectomy↗
PubMed2000

[Anesthesia-analgesia with remifentanil. Instrumental, laboratory and clinical evaluations].

The option of analgesic anaesthesia without hypnotic was investigated in 13 patients, submitted to general, orthopedic or urologic surgery. Induction and maintenance of anaesthesia was performed with syringe-pump infusion of remifentanil 1-->2.2 mcg/kg/m and cisatrecurium, 0.2/air with FIO2 0.3; ecg monitoring, sieric level of ACTH were studied. "Slipping 8 channels patterns" were observed without spindless and K complexes; only in 2 patients N2O 50% can be used for increasing the depth of narcosys; ACTH levels increases only after remifentanil infusion stop.

Adrenocorticotropic Hormone↗
PubMed1987

[The electrocardiomultigraphimeter and the Commodore-64. How to use the home computer with great skill].

The drop in hardware costs has fostered the widespread use of home-computing systems. Because of this situation, the home-computer can be profitably employed in some highly specialized fields. We believe electrocardiographic instrumentation to be one of such fields. We have built an electrocardiomultigraphimeter (ECXGM), which can be considered as a development of the traditional electrocardiograph that fulfills some additional functions. Our prototype features vectorcardiography, polar coordinate tracing, automatic measurements between fiducial points selected by the user with a joystick and cursor on the screen and trace filing by patient, on labelled floppy disks. The conventional hardware consists of a Commodore 64 console, a monitor, two floppy disk drives and an Epson HI-80 plotter, all of them readily available. The special hardware consists of an A/D converter, which receives the electrocardiographic signal downstream of the amplifying stage which is a standard feature of any electrocardiograph. Prototype development mostly involved the software. Difficulties were posed by the limited resources available on home-computers, an important point in view of the problem to be tackled. The solutions adopted are based on the use of the ASSEMBLER language, overloading techniques and on minimizing the interconnections among the software modules defined in a compactly built program. The result is an instrument having significantly advanced clinico-scientific capabilities as compared to current electrocardiographic instruments. This factor, and the class of the hardware used and special software built confer originality to this work.(ABSTRACT TRUNCATED AT 250 WORDS)

Computer Graphics↗
PubMedDate not supplied

Electrocardiomultigraphimeter using a home computer.

The drop in hardware costs has fostered the widespread use of home-computer systems. Because of this situation, the home computer can be profitably employed in some highly specialized fields. We believe electrocardiographic instrumentation to be one such field. We have built an electrocardiomultigraphimeter (ECXGM), which can be considered as a development of the traditional electrocardiograph that performs some additional functions. Our prototype features vectorcardiography, polar coordinate tracing, automatic measurements between fiducial points selected by the user with a joystick and screen cursor and trace filing by patient on labelled floppy disks. The standard hardware consists of a Commodore 64 console, a monitor, two floppy disk drives and an Epson HI-80 plotter, all of which are readily available. The special hardware consists of an A/D converter, which receives the electrocardiographic signal downstream of the amplifying stage, which is a standard feature of any electrocardiograph. Prototype development mostly involved the software. Difficulties were posed by the limited resources available on home computers, an important point in view of the problem to be tackled. The solutions adopted are based on the use of assembler language and overloading techniques and minimizing the interconnections among the software modules defined in a compactly built program. The result is an instrument with significantly advanced clinico-scientific capabilities as compared to current electrocardiographic instruments. This fact, and the class of the hardware used and special software built, confer originality to this work. The new instrument ought to be especially suitable for the offices of cardiologists who have an interest in such capabilities, and for schools of electrocardiography.

Computer Graphics↗
PubMedDate not supplied

[Preventive therapy in stomatological and maxillofacial surgery. Clinical considerations on the administration of cephaloridine, using a new technic (short-term prophylaxis)].

The "Short term prophylaxis" technique was used in 100 patients who had undergone Stomatologic surgery and Maxillo-facial surgery for post-operative prophylaxis of surgical infections according to analogous researches conducted in other surgical branches by various authors. The results obtained can be summarized as following: 1) a marked reduction in administered antibiotics (cefaloridina); 2) a marked reduction of post-operative fever; 3) a maintainment of average febrile levels at 37,8 degrees-38 degrees. The above tecnique thus allowed a more rapid mobilization of patients who had undergone surgical intervention, a reduction of the recovery period and the therapeutic costs.

Adolescent↗