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Biomedical subjects

C Battaglia

Publications and source records attributed to C Battaglia.

At least 163 records · Page 9Linked to original sources
PubMedDate not supplied

Activin A and inhibin B in extra-embryonic coelomic and amniotic fluids, and maternal serum in early pregnancy.

Activin A and inhibin B levels were measured, using a two-site enzyme immunoassay, in extra-embryonic coelomic fluid, amniotic fluid and maternal serum samples retrieved from 23 healthy pregnant women, at 8 (n=8), 9 (n=8), and 10 (n=7) weeks of gestation. Dimeric activin A and inhibin B were measurable in all samples. Median (+/-SEM) activin A concentrations in coelomic fluid (0.98+/-0.34 ng/ml) were significantly higher than in maternal serum (0.68+/-0.05 ng/ml) and in amniotic fluid (0.09+/-0.04 ng/ml) (P<0.05). Maternal serum activin A levels were significantly higher than amniotic fluid concentrations. Median (+/-SEM) inhibin B concentrations in coelomic fluid (24.32+/-6.02 pg/ml) were significantly higher than in maternal serum (5.94+/-0.97 pg/ml) and in amniotic fluid (6.31+/-1.53 pg/ml) (P<0.05), while no significant difference between maternal serum levels and amniotic fluid concentrations was found. No significant difference in activin A and inhibin B levels in extra-coelomic fluid, amniotic fluid, and maternal serum throughout the 3 weeks of pregnancy was found. The present study showed that coelomic fluid is an important reservoir of activin A and inhibin B, supporting the hypothesis that the extra-embryonic coelom may have a secretory role during the first 11 weeks of gestation.

Activins↗
PubMedDate not supplied

[Current role of open window thoracostomy].

The Open Window Thoracostomy (OWT) surgical method find its origin in the treatment of chronic tuberculous empyemas, in the cases where the drainage alone not permitted a sufficient cleaning of pleural cavity. In the recent years the indications for the execution of this method are extended also to metapneumoniae and post-pneumonectomy empyemas (for benign and malignant pathology), with or without bronco-pleural fistula, when these pathologies produces a general severe decline in the patient (septic shock). This method permit to effect a daily cleaning of a pleural cavity, through the introduction of a sterile gauzes imbued of specific antibiotic, reducing at least the purulent infection effects's previously present and favouring the reduction of the same cavity, in prevision of other reconstructive operations (thoracoplasty). Generally not many beloved by surgeons and patients (for the difficult management, aesthetic outcomes, the long stay in hospital), the OWT can often reestablish a dangerous situation, especially in the patients with a risk of septic shock. This study aims to analyse present indications, problems and therapeutics outcomes of this method, through the evaluation of 27 cases of OWT treated in the Department of Thoracic Surgery University of L'Aquila between the 1984 and the 1998.

Aged↗
PubMedDate not supplied

[Tumors of the chest wall].

The aim of this work was to evaluate the different surgical repair procedures and to discuss their technical applications according to the indications. From april 1989 to november 1999 we observed 18 patients, 12 males (66.7%) and 6 females (33.3%) presenting tumors of the chest wall. All patients were submitted preoperatively to a general respiratory check-up, and to an assessment of loco-regional and metastatic lesions. In 13 patients (72.2%), on the basis of topographical and morphological characteristics of the mass, we performed a transthoracic needle biopsy under scanner monitoring. The exeresis, in 6 patients (33.3%), implied a large resection of osteo-muscular structures. In 10 patients (55.6%), the benign nature of lesion, required extirpation solely of the tumor. In 2 patients (11.1%), owing to the extensive infiltration of the primary neoplasm, solely complementary treatment was carried out. Reconstruction of the thoracic wall was performed using associated myoplasty in all cases. In 3 subjects a prosthesis was installed; in 1 case a costal transposition association is necessary. Histological observation of the excised material revealed 16 primary tumors, 12 benign (75%) and 4 malignant (25%). Transthoracic needle biopsy under scanner monitoring confirmed the diagnosis in 100% of the cases operated. Fourteen patients (87.5%) are alive 73 +/- 35 months after intervention, without resumption of the disease. Two patients died (12.5%) VIII and VI months following the operation. Two patients not operated, died after VI and V months. Appropriate choice of techniques and of repair materials allowed valid oncological, aesthetical and functional results independently from the extent of the parietal defect.

Adolescent↗
PubMedDate not supplied

[Ectopic atrial tachycardia persisting from childhood. Its conservative treatment and long-term follow-up].

Chronic ectopic atrial tachycardia in an uncommon form of arrhythmia which is rarely complicated by congestive cardiomyopathy, ictus, sudden death. This possibility has led many authors to ascertain the need of an aggressive diagnostic and therapeutic approach. In need of an aggressive diagnostic and therapeutic approach. In this study the Authors describe the case of one patient who, at the age of 10 years, presented this form of arrhythmia. Due to its benign aspects (relatively low rate, few symptoms, no signs of anatomic-functional heart deterioration), the authors chose a non-aggressive approach. The arrhythmia, which was persistent during the following 3 years, at puberty became intermittent. Now, 4 years later, the subject is asymptomatic and the arrhythmia is beginning to regress spontaneously.

Child↗
PubMedDate not supplied

[Contamination of enteral diet solutions in nosocomial environment].

The gastrointestinal tract is comparatively resistant to food-born germs, but recent studies suggest that nosocomial infections may be triggered by this route. In a study with industrialized diets, prepared with aseptic technique and stored up to 24 hours, aerobic and anaerobic contaminants were searched. Samples were taken after 0.8 and 24 hours, whereas half of these last two analyses were carried out in material left at room temperature, and the other half in refrigerated diets. Initial examination revealed 50% of positive cultures, but part of this was due to non-pathogenic Bacillus germs. After 8 and 24 hours 90% of the samples grew organisms, again with a large proportion of Bacillus, but also with several Gram-negative bacteria, as well as rare Gram-positives. Diarrhea and fever were not registered in patients submitted to enteral nutrition during the study period, nor could any episodes of bacteremia or septic shock be attributed to contaminated feeding material. This lack of clinical consequences of the reported bacterial isolations is not unexpected, and suggests that low concentrations of microorganisms were probably present in the preparations, below a critical level. Nevertheless, attention will be required in the future for better quality control of enteral nutrition mixtures, specially when resistant strains of Gram-negative species are identified, and also in the management of debilitated or immunologically compromised hosts.

Bacteria, Aerobic↗
PubMedDate not supplied

[Postoperative course after laparoscopic surgery of the upper abdomen].

Laparoscopic techniques in general surgery have become a widely accepted method, especially for treatment of symptomatic gallstone disease. Many reports have investigated the indications, contraindications, equipment, techniques and outcome of laparoscopic procedures. However, as yet, relatively few studies have discussed the problems concerning patient's monitoring and care during the postoperative course. In the present paper, the authors review the pertinent literature analyzing the management of the postoperative period after laparoscopic surgery of the upper abdomen. Obviously, most data have regarded cholecystectomy, that is the most frequent procedure. Surgical laparoscopists have utilized knowledge deriving from gynecological experience, but these procedures are generally short and performed on young, otherwise healthy female patients. On the contrary, laparoscopic digestive surgery shows both gastrointestinal and peculiar general problems. These procedures are frequently performed on older patients who may have pre-existing diseases and require longer periods of peritoneal insufflation. During surgery of the upper abdomen, the pneumoperitoneum and the patient's operative position produce haemodynamic and respiratory changes coupled with acid-base disturbances. Intraabdominal hypertension causes a venous stasis along the inferior vena caval territory that can lead to a decrease in cardiac preload and in cardiac output. Usually, a compensatory increase in peripheral vascular resistance ensures normal or mildly high values of arterial tension. Furthermore, a hypercapnia and a mild mixed acidosis can develop as a result of the concomitance of different pathogenetic factors.(ABSTRACT TRUNCATED AT 250 WORDS)

Abdomen↗