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Biomedical subjects

L Cagini

Publications and source records attributed to L Cagini.

13 recordsLinked to original sources

Thoracic metastasectomy for germ cell tumours: long term survival and prognostic factors.

BACKGROUND: This study evaluated the results of thoracic metastasectomy for germ cell tumours to assess long term survival and identify prognostic factors. PATIENTS AND METHODS: A series of 141 consecutive patients who underwent resection of thoracic metastases at Royal Brompton Hospital were retrospectively reviewed. Kaplan-Meier estimates of survival were calculated for clinical variables related to primary tumour and thoracic metastases, using the Cox model for multivariate analysis. RESULTS: Complete resection was achieved in 123 cases (87%); pathology showed viable malignant elements in 46 (32%), necrosis or fibrosis in 32, differentiated teratoma in 63. The overall survival was 77% at five years and 65% at 15 years, being significantly shorter in patients with malignant teratomatous elements (51% at five years, P = 0.0001) or incomplete resection (64% at five years, P = 0.019). At multivariate analysis these factors retained their prognostic value, with a relative risk of death of 5.7 for malignant teratomatous elements and 4.0 for incomplete resection. In addition, the Cox model revealed a 3.2 times higher risk of relapse in patients with malignant teratomatuos elements at the time of thoracic metastasectomy. CONCLUSIONS: These data confirm the value of thoracic metastasectomy to asses pathological response and achieve permanent cure of chemoresistant disease.

Adult

Rupture of the azygos vein in blunt chest trauma.

Isolated traumatic laceration of the azygos vein is a rare condition that is mainly associated with violent deceleration traumas. Diagnosis is crucially based on radiologic evidence of massive right pleural bleeding and hemorrhagic shock. Surgical exploration needs to be early and concomitant with resuscitation, prognosis largely depending on timely intervention. Median sternotomy provides the most advantageous access because it can be quickly performed and allows for surgical exploration.

Accidents, Traffic

["Hepatoid" gastric tumor].

In this study the Authors describe two cases of hepatoid adenocarcinoma of the stomach: one is characterized by the presence of alpha-fetoprotein (AFP) high levels of the serum both pre and post-operating and by the very positive response to the adjuvant chemotherapy (how the return to the normality of such values demonstrates). The other is instead characterized by the presence of post operating hepatic metastasis, event which is very frequent in this kind of neoplasm, but presents many problems concerning the differential histological diagnostics with the primitive hepatocarcinoma (problems which are nowadays not completely solved). Moreover the Authors relate to this study the revision of the international literature of the main characteristics and of prognosis of this particular and rare neoplasm.

Adenocarcinoma

[Penetrating wounds of the thorax].

From January 1989 to December 1993 at the Institute of Clinical Surgery of the University of Perugia, 5 patients were under observation for penetrating chest injuries. Two of them had show-wounds, one a slash, one a stabbing and slash and one a cutting blow. One of the patients with shot-wounds died on the operating table from a haemorrhage while the other was saved by surgery. One patient successfully underwent surgery for loss of tissue in the thorax walls. Another had a mini-thoracotomy plus lung suture which were successful. Finally, in the patient with a slash in the front region of the thorax and a slight pneumothorax, we inserted a chest thorax tube and so obtained a complete re-expansion of the lung. Total mortality was 20%. Surgical exploration of the thorax we believe is necessary wherever there is a risk of haemorrhage or possible lung damage requiring only surgery. According to many authors, video-thoracoscopy has the advantage of a reliable diagnosis and above all, enable us to repair lung wounds without opening the thorax. In one of our patients we could have avoided the mini-thoracotomy and used thoracoscopy to repair the lung damage.

Adult

[Flail chest].

From January 1989 to December 1993 at the Department of Clinical Surgery at the University of Perugia, 7 patients were under observation for multiple costal fractures and flail chest. One of them died almost immediately after his admission and therefore received no more than the initial medical treatment. Another died 17 days after costal osteosynthesis of cerebral complications. Four others successfully underwent a costal osteosynthesis, while the 7th patient received medical therapy with a positive outcome. In the case of a critical flail chest with very serious physio-pathological consequences, if the fractures are in technically favourable places, we think it is better to stabilize immediately, since the operating trauma is minimum and in many cases the patient is already intubated and curarized.

Female

[Thoracic trauma].

From January 1989 to December 1992, in the Institute of Clinical Surgery of the University of Perugia, 102 patients were admitted for thoracic trauma. Two patients with an open thoracic trauma, both presenting multiple shot-wounds, underwent an explorative thoracotomy. One of them died on the operating-table from hemorrhage, while the other was saved by a wedge-resection. A 3rd explorative thoracotomy was successfully performed on a patient with internal thoracic trauma and severe hemothorax. Among the 100 patients with an internal thoracic trauma, mortality was 6%, but only one of the 6 deceased, had no lesions other than a fail chest. As a matter of fact 38 patients presented lesions in other parts of the body. Simple and complicated multiple costal fractures, found in 84 cases, were the most frequent lesions observed. Seventeen of the 38 patients with pneumothorax and/or pleural effusion had a chest tube applied. Three patients were operated for a diaphragmatic hernia with a positive outcome. Only 75 patients received medical treatment without surgery. Six of the patients with multiple costal fractures presented flail chest. One of them (mentioned above) died almost immediately after his admission and therefore received no more than the initial medical treatment. Four others, aged over 65, successfully underwent a costal osteosyntesis, while the 6th patient received medical therapy with a positive outcome. In the case of a critical flail chest with severe patho-physiological consequences, if the fractures are in technically favourable sites, the Authors believe it is better to immediately stabilize the thorax, since the operating trauma is minimum and in many cases the patient is already intubated and curarized.

Adult

[Intestinal obstructions caused by colorectal carcinoma in the aged].

Colorectal cancer is the second most common malignancy of the adult population in the United States. It is exceeded only by lung cancer among males and breast cancer among females. Malignancies of the colon and rectum are responsible for approximately 12 per cent of all adult cancer deaths. These tumors appear as surgical urgency by intestinal obstruction for 15-20 per cent and by perforation for 3-8 per cent of all cases. It often occurs in elderly patients; in fact, urgent surgical operations are especially performed in patients older than seventy. The mortality rate for urgent surgical operation in elderly patients is about 32-54 per cent. This high mortality is even due to concurrent pathologies and particular locoregional and/or general alterations induced by tumor. The authors studied all patients older than 75 years affected by colorectal cancer and treated by choice or by urgency at Dept. of Surgery of the University of Perugia from January 1987 to February 1993 to individualize some clinical, anatomo-pathological and therapeutical significant characteristics about colorectal cancer in geriatric age.

Age Factors

[Digital imaging in the surgical detection of breast neoplasms].

Microcalcific clusters represent good indicators for breast cancer detection. The Authors evaluated 98 cases of breast microcalcifications in patients with no palpable lesions. The patients had undergone mammography, biopsy and excised specimen's radiography to confirm that the target lesion was adequately removed. The presence of microcalcifications was detected through a computerized instrument which allows the digitalization of the image.

Breast Diseases

[Surgical staplers in thoracic surgery].

Since its introduction in our department, in 1987, stapling devices are used on routine basis for thoracic surgery. Overall, 133 operations were performed: 95 lobectomies, 30 pneumonectomies, and 8 bilobectomies. Stapled related complications consisting of bronchopleural fistula following right pneumonectomy were registered in 3 cases. The use of vascular staplers was never associated with complications, and no air leakages following stapled parenchymal sutures were observed. The advantages related to the use of stapling devices are represented by low air leakage and bleeding rates, reduced operative trauma, and reduced operating time. However, confidence with the techniques is needed to avoid regrettable consequences.

Carcinoma, Bronchogenic

[Lung surgery in patients over 70 years].

The Authors according to their previous experience, report on the possibility of thoracic surgery in patients older than 70 with lung cancer. Fourty-seven patients older than 70 have been operated in the period 1984-1988 for lung cancer. The Authors performed 34 lobectomy, 11 pneumonectomy, and 4 wedge resection. The mortality rate was 4.25% (2 patients). Thirty-four patients are still living (follow-up range 12-60 months). Ten patients died. The Authors report a diagnostic and therapeutic guideline for this kind of pathology.

Aged

[Complications after total thyroidectomy in thyroid carcinoma].

Authors report the postoperative complication rate in 52 patients who had undergone total thyroidectomy for cancer between 1984 to 1989. Total thyroidectomy has been performed in 9.8% of patients surgically treated for nodular thyroid pathology. Patients age average 49 years in a range 16-75; they were 49 women and 3 men. In 50% of cases we found papillary cancer, follicular in 40%, medullary 4% and anaplastic 6%. We shared postoperative complications in two mean groups: 1) aspecific complications as cardiocirculatory failure, respiratory failure, wound infections or collections, granulomas, keloids; 2) surgery related complications such as hypocalcemia, dysphagia, recurrent++ paralyses. The first group, we noticed just one case of respiratory mechanical failure due to severe tracheomalacia that required a temporary tracheostomy performed at the end of surgical procedure; we did not notice any death due to cardio-circulatory or respiratory failure, nor did we notice any postoperative hemorrhage; one patient presented a wound seroma, two patients presented granulomas due to subcutaneous stitches, and three developed papulous drug-induced erythema. The second group, eight patients developed a transient hypocalcemia beginning on the second postoperative day, without relevant tetanic crisis, well treated by calcium administration; only two of these patients developed permanent hypoparathyroidism. In 3 cases we had to perform exeresis of a laryngeal inferior nerve involved by the cancer, while in 5 more cases we noticed a transient monolateral paralysis that disappeared in 2 or 3 months. Three patients presented dysphagia before intervention and healed post-surgery.(ABSTRACT TRUNCATED AT 250 WORDS)

Adenocarcinoma

Auditory brainstem responses in the full-term newborn: changes in the first 58 hours of life.

The authors have studied auditory brainstem responses (ABR) in 33 full-term newborns at 0-9, 10-30, 31-58 h, in order to evaluate changes in the first hours after birth, particularly in relation to different repetition rates and recording procedures. The data obtained show that the characteristic newborn 3-peak tracing is observed in almost all the cases at the third recording session while, at the first, wave I is absent in two-thirds of the cases. The most reliable waves at birth are waves III, V and N II, which is often present even when other vertex-positive peaks are absent. Latency values of the considered peaks tend to decrease in a statistically significant way and this decrease is almost complete at the second recording session (30 h), while V-I interval values decrease, especially when the 9 stimuli/s repetition is employed. Stimulus repetition rate affects ABR replicability and synchronization, but it hardly influences latency values. Contralaterally recorded potentials are often absent at birth and become evident 58 h later. The authors conclude that the maturational processes probably affect both peripheral and central auditory structures in the first hours after birth. In this period, increasing repetition rates seem to have a greater effect on wave replicability than on latency values.

Brain Stem

[Primary choledocholithiasis after side-to-side choledochojejunostomy].

Primary choledocholithiasis represents a quite unusual sequela of biliary tract surgery. Primary stones originate in the common bile duct and are soft, smooth, with a yellowish or brown-reddish colour, reproducing the shape of the duct in which arise. The Authors report a review of the cases observed in the division of General and Vascular Surgery-Department of Surgery and Surgical Emergencies of the University of Perugia. From January 1988 to December 1993, 577 laparotomic biliary tract operations were performed, and in 8 cases a re-operation was needed. Among the latter, particularly interesting were 2 cases of primary choledocholithiasis occurred in two patients with bilio-digestive anastomosis previously performed, i.e. two side-to-side Roux-en-Y or Braun loop choledochojejunostomies, respectively. Therefore, primary lithiasis following a choledochojejunostomy occurred when the bilio-digestive anastomoses were performed with the indication of a curative re-operation on the biliary tract. On the contrary, most choledochojejunostomies are performed as a palliative procedure in patients presenting a low survival rate not allowing to develop a Sump Syndrome and a consequent choledocholithiasis, which are long-term complications.

Biliary Tract Surgical Procedures