PubMed Health⌕ Search

Biomedical subjects

G Locatelli

Publications and source records attributed to G Locatelli.

At least 37 records · Page 2Linked to original sources
PubMed1990

[Limitations and complications of the use of the basket].

During the last 15 years the Dormia stone dislodger has been used in 352 cases (80%) out of 435 of ureteral stones: 318 were at ileo pelvic, 34 at lumbar level. 303 ileo pelvic and 21 lumbar stones have been successfully removed (92%). Considering that the probability of stone removal is directly proportional to the ureteral expansibility and indirectly proportional to the volume of the stone, the Basket technique isn't indicated: When the stone is more than 1 cm.; When the ureter is widely stiff (as in Ormond d. or post-radiotherapy stiffness); When stenosis is present. The impossibility of bypassing the stone, the insufficient expansion of the Basket, the stone irremovability and the difficult extraction through the meatus, my limit the successes of this technique while iperating. The immediate complications have been: 4 sectoral rips of the mucosa surrounding the ureteral end, cured by catheterisation without aftereffects (1.2%); 1 sliding of the ureter through the trigone up to urethral meatus (in a woman), which has been repaired, without aftereffects, by direct catheterisation of the ureter, out of the urethra, after removal of the Basket and stone from the ureteral extremity. (0.3%) Strictures occurred in 5 cases (1.5%) and vescicoureteral reflux in 6 (1.8%). These results of the sole Basket technique (performed according to the well-known directions) seem to be much better than those (which have been illustrated) obtained with the endoscopic lithotripsy.

Humans↗
PubMed1987

[Carcinoma of the colon. Statistico-epidemiologic study carried out at Casale Monferrato Hospital].

The authors report here on the results of a statistical and epidemiological review of cases of carcinoma of the large bowel observed in the General Surgery Division of the Casale Monferrato Hospital. After supplying introductory data on the diffusion of the disease, risk factors and statistical aspects, the authors report data on 137 cases of large bowel carcinomatous neoplasms observed and treated over the period 1978-1984, complete with tables summarising the neoplastic localizations aid the types of operation performed. After calculating the operative mortality and both the absolute and relative survival rates, the authors analyze the results of the survey, comparing the findings obtained with those reported in the literature by various authors.

Adenocarcinoma↗
PubMed1983

[Neoplastic occlusions of the large intestine (clinical study)].

The authors do a clinico-epidemiologic reviewing of 24 cases of neoplastic obstruction of large intestine, they had the opportunity to observe. Such patients represent 12.9% of all cases of mechanic intestinal obstruction. The obstructive complication, which in 70% of the observations involved sigma and rectosigmoid junction, was the clinical beginning of 9,6% of colonic and rectal carcinomata. Such disease arose preferably in old patients and in those suffering from one or more concomitant diseases. Some reflections about the surgical treatment, which, in this casuistry, determined a mortality of 25%, lead the Authors to think the requirements of the treatment of high risk patients and the rigid observance of the rules of colonic surgery should be put before the requirements of oncological radicalness.

Adenocarcinoma↗
PubMed1981

Waterston anastomosis for initial palliation of tetralogy of Fallot.

Two hundred twenty-seven patients (median age 5.4 months) in whom a Waterston anastomosis was done for initial palliation of tetralogy of Fallot between 1966 and 1979 were studied. Twelve patients died in the hospital (5.3%; 70% confidence limits, 3.8% to 7.3%). Young age, low weight, and poor clinical condition did not appear to be incremental risk factors, whereas a too large or a too small shunt was largely responsible for the hospital mortality and morbidity. Follow-up information was available in all the 215 patients discharged from the hospital. At the last follow-up visit, before any further surgical procedure, 74% of the patients were clinically in good condition. By actuarial methods, 97.7% of hospital survivors were alive and 95.8% were event-free at and beyond 3 years postoperatively. Eighty-six patients have been catheterized in preparation for secondary repair (mean interval between Waterston shunt and catheterization, 2.9 +/- 1.38 years). One patient developed pulmonary vascular disease, four acquired pulmonary atresia, and 14 had a severe kinking of the right pulmonary artery at the site of the anastomosis.

Angiocardiography↗
PubMed1980

Surgical repair of persistent truncus arteriosus in infancy.

Fourteen patients younger than two years of age with persistent truncus arteriosus underwent primary repair. Twelve of them were less than 1 year and 4 less than 3 months of age. Intractable heart failure was the indication for surgery in all patients but one who had increased pulmonary vascular resistance. There were 5 hospital and 2 late deaths. Six out of the 7 survivors (median follow-up: 29 months) were symptom-free. The remaining infant who preoperatively had significant truncal valve regurgitation was doing fairly well 2 1/2 years after repair. Our experience suggests that, although the mortality remains high, primary repair for infants with persistent truncus arteriosus is feasible and offers better overall results than does pulmonary artery banding followed by later intracardiac repair. We advise primary repair for all infants with intractable heart failure or increasing pulmonary vascular resistance with or without truncal valve regurgitation. Elective repair is recommended before the age of 2 years to minimize the risk of pulmonary vascular disease.

Follow-Up Studies↗
PubMed1980

Protein-losing enteropathy after Fontan operation for tricuspid atresia (imperforate tricuspid valve).

Protein-losing enteropathy occurred in a 7-year-old girl with tricuspid atresia, concordant ventriculo-arterial connexions and a relatively large hypoplastic right ventricle, one year after an atrio-ventricular type of Fontan operation by means of a valveless woven Dacron conduit. Severe conduit regurgitation and a marked enlargement of the hypoplastic right ventricle were demonstrated at recatheterization. Insertion of a bioprosthetic valve at the base of the right atrial appendage led to a dramatic clinical recovery of the patient. The use of a valved conduit is recommended when an atrioventricular type of Fontan repair is planned in patients with tricuspid atresia, concordant ventriculo-arterial connexions and relatively large hypoplastic right ventricle.

Aortic Valve Insufficiency↗
PubMed1980

Cervical aortic arch with aortic obstruction: report of two cases.

The occurrence of aortic obstruction in patients with cervical arch is very rare. The clinical and angiocardiographic findings of two patients with this combination of defects are presented. One of these patients, in whom tricuspid atresia with reduced pulmonary blood flow was also present, had a successful resection of the obstruction together with construction of a Waterston shunt.

Aorta, Thoracic↗
PubMed1980

Complete atrioventricular canal associated with tetralogy of Fallot. Successful repair using a new surgical technique. A case report.

A modified Mayo technique was successfully employed to correct a case of complete atrioventricular (a-v) canal associated with tetralogy of Fallot. The technique included: 1) separated patch closure of the atrial and ventricular septal defects, 2) attachment of the a-v valves between the two prosthetic septa without suturing the clefts, 3) mitral valve commissuroplasty, 4) relief of the right ventricular outflow obstruction. Postoperative catheterisation revealed normal haemodynamic findings. The child is asymptomatic two years after the operation.

Abnormalities, Multiple↗
PubMed1980

[Surgical treatment of truncus arteriosus in the 1st year of life].

80% of patients with Truncus arteriosus died in the first year of life by cardiac insufficiency from left to right shunt, high level of pulmonary vascular disease, truncal valve insufficiency. The palliative procedure, banding of the pulmonary arteries, is technically difficult, with high hospital mortality (50%) and increases the risk of the second stage repair (70%). Eight infants (1 to 9 months) have been corrected with 3 operative deaths and two late deaths. Three patients are doing well 12, 12 and 36 months post-operatively. Two technical problems are of concern: 1: The size of the valved extracardiac conduit comparing with the size of the infants thorax and the long term follow-up of such conduit. 2: The management of the truncal valve insufficiency: no plasty or replacement have be done, but in three cases of truncal insufficiency one pericardial patch has been used to double the VSD's dacron patch to avoid hemolysis. The one-stage repair of truncus arteriosus in infancy is one acceptable approach.

Humans↗
PubMed1979

Atrio-ventricular canal malformations. Recent surgical techniques.

Twenty patients with atrio-ventricular canal malformations (5 complete and 15 partial forms) were operated upon during the last two years, using new surgical techniques. The repair of the complete form based on a three-leaflet three-commissure mitral valve concept, was accomplished by: a) Two separate partitioning patches (one ventricular, one atrial), b) mitral and tricuspid valve attachment in between, c) no cleft sutures, d) correction of subvalvular apparatus abnormalities, e) commissuroplasty. The repair of the partial form was obtained by: a) Valvular and subvalvular repair of the lesions when present, b) patch closure of the ostium primum defect suturing on the tricuspid side. All patients survived operation and exhibited normal sinus rhythm. Residual mitral incompetence proved to be less frequent as compared to previous techniques.

Adolescent↗
PubMed1979

Transposition of the great arteries. Successful Senning's operation in 35 consecutive patients.

Mustard's operation for TGA (transposition of the great arteries) has been obstructive complications. In order to try to avoid these complications, we used Senning's operation for TGA. Our experience in 35 consecutive cases is reported. There were no operative or late deaths. Four patients had a PDA; three had a significant VSD with subpulmonary stenosis in two. Previous atrial septectomy and persistent LSVC did not represent contraindications to this procedure. The postoperative course has been smooth and uneventful in all patients. Follow-up periods of one to twenty months demonstrated sinus rhythm in all patients and there were no significant gradients between the venae cavae and the new systemic atrium in 12 reinvestigated patients. On the basis of these results, Senning's operation is recommended as a valid alternative to Mustard's operation.

Cardiac Catheterization↗
PubMed1979

Results of systemic-to-pulmonary artery anastomosis for tricuspid atresia with reduced pulmonary blood flow.

Fifty-six patients with tricuspid atresia and decreased pulmonary blood flow received a systemic-to-pulmonary artery anastomosis as a preliminary operation. Thirty-five had a Waterston shunt, 12 a Blalock-Taussig anastomosis, and nine various other procedures. The age at operation ranged from 2 days to 10 years (median 4.5 months). Pulmonary atresia was present in eight newborn infants. Four patients (7%), all less than 3 months old, died in hospital from persistent servere hypoxia despite the palliative procedure. By actuarial methods, 93% of the survivors were alive at and after one year (longest follow-up:9.8 years), while 83% had not required further palliation at and after four years from the first operation. None of the patients subsequently restudied had raised pulmonary pressure or resistances, and in most of them the pulmonary arterial tree was deemed adequate for the Fontan operation.

Age Factors↗
PubMed1979

Repair of tetralogy of Fallot after Waterston anastomosis.

Sixty-three corrective operations have been performed in patients with Tetralogy of Fallot and a previously constructed Waterston shunt. The patients were from 1.4 to 8 years of age (median 4.3 years), and the mean interval between the Waterston shunt and the repair was 39.3 +/- 16.05 months. Three patients developed pulmonary atresia and six required a second anastomosis prior to intracardiac repair. Kinking and stenosis of the right pulmonary artery at the site of the Waterston anastomosis occurred in 12 (19 percent; 70 percent confidence limits 14 to 26 percent) patients who required patch enlargement of the right pulmonary artery at repair. Seven (11 percent; 70 percent confidence limits 7 to 17 percent) patients died in the hospital and three (5 percent; 70 percent confidence limits 2 to 11 percent) during the period of late follow-up. None of the early or late deaths was specifically related to the presence of the previously performed Waterston anastomosis.

Age Factors↗
PubMed1979

[Ventricular septal defect associated with aortic regurgitation. Results and surgical considerations in pediatric age group (author's transl)].

The Authors report their experience on the surgical treatment of ventricular septal defect and aortic regurgitation. Out of 13 patients operated upon, four required aortic valve replacement; five patients were treated with plasty of the aortic leaflets and four with the only patch closure of the V.S.D. There have not been reported hospital or late deaths. In one case, after the aortic plasty, the aortic regurgitation became severe; this patient had shown clinical signs of aortic regurgitation for more than five years before the operation. The Authors emphasize the surgical aggressiveness in this lesion when the aortic regurgitation has recently showed, whereas it is preferable to delay the operation when the aortic regurgitation has been present for more than five years.

Aortic Valve Insufficiency↗
PubMed1979

[Autoptic findings and anatomo-clinical correlations in subjects who died after repair of tetralogy of Fallot (author's transl)].

The postoperative course and the post-mortem findings of a group of 30 patients who died after repair of tetralogy of Fallot were reviewed. A residual ventricular septal defect was the most common finding at the autopsy (13 patients = 43%) while a severe residual obstruction to the right ventricular outflow was found in 5 patients (17%), miscellaneous lesions in 3 (10%) and no intracardiac defects in 9 (30%). Since a residual anatomic defect is frequently responsible for the hospital mortality, prompts hemodynamic evaluation and reoperation is recommended when the postoperative course is deteriorating.

Autopsy↗
PubMed1979

Experience in palliative treatment of univentricular heart including tricuspid atresia.

Over a period of ten years 110 patients with univentricular heart, including cases with tricuspid atresia, received palliation. The overall hospital mortality was 14.5%. Late mortality during a mean follow-up period of two years, was 6%. A group of patients with univentricular heart ("complex" group: 21 cases) had numerous and significant associated anomalies which affected the surgical results (16 survivors). Eight patients were discovered to have univentricular heart only at open heart surgery (5 survivors). In the remaining patients hospital mortality was 7.4% (6/81). As compared with the natural history these results indicate that palliative surgery is still an effective type of treatment for these two severe cardiac malformations.

Heart Defects, Congenital↗
PubMed1978

Open-heart palliative surgery for pulmonary atresia with ventricular septal defect and hypoplastic pulmonary arteries.

The surgical management of pulmonary atresia with ventricular septal defect (VSD) and hypoplastic pulmonary arteries poses difficult problems. Adequate palliation was achieved in two such patients by restoring continuity between the right ventricle and the pulmonary arteries by means of a woven Dacron patch. The VSD was left unrepaired. Angiography performed one month after operation showed the reconstructed pulmonary outflow tract to be widely patent and the pulmonary arteries to be enlarged. This approach may allow subsequent total correction by closure of the VSD in these hopeless patients.

Blood Vessel Prosthesis↗