Biomedical subjects

C Renouard

Publications and source records attributed to C Renouard.

6 recordsLinked to original sources

PubMed1993

[Transplantation of reduced-size livers in children].

Nowadays, liver reduction techniques make it possible to use livers obtained from adults or adolescents for implantation in children. These techniques have been evaluated by analysis of 100 liver transplantations performed between January 1988 and October 1991 in 85 children. Forty-six full-size grafts implanted in 38 children (group 1) were compared with 54 reduced-size grafts implanted in 47 children (group 2). The overall actuarial survival at 4 years was 86 percent. There was no statistical significant difference between the two groups as regards the rates of death (8 versus 19 percent), reoperation (54 versus 64 percent), retransplantation (15 versus 16 percent), hepatic artery thrombosis (13 versus 15 percent) and graft survival (82 versus 70 percent) respectively. Haemorrhage was significantly more frequent in group 1 than in group 2 (P = 0.04), irrespective of whether transplantation was performed urgently or electively. Using reduced-size livers considerably increases the number of liver grafts available to children. Apart from a greater risk of haemorrhage, the results obtained with reduced-size livers were identical with those obtained with full-size livers.

Adolescent↗

PubMed1987

[Management of uropathies diagnosed prenatally. Discussion based on a series of 53 cases].

From 1982 to 1986, 53 newborns (26 boys and 27 girls) were referred to the authors for the management of a congenital anomaly of the urinary tract, following a prenatal ultrasonographic diagnosis. The postnatal diagnosis was hydronephrosis in 27 children (10/27 bilateral cases), unilateral multicystic dysplasia in 11, ureteral duplication in 6, primary megaureter or orthotopic ureterocele in 5 (1/5 bilateral case) and posterior urethral valves in 4. An early urinary tract infection was noticed in 5 cases only and 2 boys with urethral valves had an altered renal function at birth. Eight children with a mild lesion were not operated. A radical procedure was performed in 15 cases: excision of a multicystic kidney (10 cases) or heminephrectomy of an upper non-functioning pyelon (5 cases: 3 with heterotopic ureterocele and 2 with ectopic ureter). Thirty children were submitted to a corrective procedure: electrocoagulation of urethral valves (4 cases), ureteroneocystostomy (6 cases) or pyeloplasty (19 unilateral and 1 bilateral procedure). Except in a case of pyeloplasty the result of the reconstructive surgery was considered as good or satisfactory from a radiological point of view, with a mean follow-up of 1.5 year. The essential point of discussion is the evaluation of the factors which must be taken in account to plan an early reconstructive surgical treatment. The main factor, I.e. the natural history of these congenital anomalies remains at yet difficult to predict in a great number of cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Female↗

PubMed1985

[Surgical pulmonary biopsy in children].

During the last 2 years an open lung biopsy was performed in 16 children aged from 2 to 14 years. Fourteen of these had a chemotherapeutic induced immunodeficiency and a radiological picture of diffuse pulmonary infiltrate. A definite diagnosis was established in 11 cases: 5 pneumocystis carinii pneumonitis, 2 CMV infections, 2 pneumocalcinosis, 1 neoplastic pulmonary lymphangitis and 1 staphylococcal infection. Three had a non-specific interstitial pneumonitis. In this series there was no post-operative death and the single complication was a wound infection. The tracheal tube could be removed within the hours following the intervention in 14 of the 16 children. The review of the recent literature suggests that the open lung biopsy is a safe and accurate way for the diagnosis of pulmonary infiltrates in pediatric immunocompromised patients. It is however a very invasive procedure and it is expectable that in the next year the bronchoalveolar lavage with a fiberoptic flexible bronchoscope will be systematically attempted prior to the open biopsy.

Adolescent↗

PubMed1985

[Congenital cervical thymic cyst].

Congenital cervical thymic cysts are a very rare cause of tumor of the neck in children. They can exceptionally induce a laryngeal compression. Actual identification of the tumor may sometimes be made only after surgery and histologic examination. Evolution is benign. Their existence seems to be related to the persistence of thymic remnants in the neck.

Child↗

PubMed1984

[Urethrorrhagia in boys].

Fourteen boys, aged 2 to 13, have been examined in the last six years for blood spotting from urethra between voidings, rarely associated with some degree of dysuria. No anomaly was seen on IVP, except in two cases which showed mild stenosis of the posterior urethra. Endoscopic evaluation was completely negative in 5 cases; moderate inflammation or hypervascularisation, some what a subjective aspect, was noticed in 4 cases; a definite "posterior urethritis" already described by others in the literature was demonstrated in 5 cases. The etiology of such a lesion remains unknown; no story of external or internal trauma was reported. Although these urethrorrhagia are of benign nature, we do not feel like others (1) that endoscopy should be considered as unnecessary, but on the contrary that it should help for correct evaluation and follow up of these patients, rather prone to be lost especially when no treatment has been prescribed.

Adolescent↗

PubMed1983

[Xanthogranulomatous pyelonephritis in children. Report of 4 cases].

Xanthogranulomatous pyelonephritis (X.G.P.) is a rare unilateral manifestation of chronic interstitial nephritis. 4 new cases of X.G.P. in children are reported. The authors review 60 cases of the literature since 1963. The X.G.P. has no predominant sex distribution. The age extended especially between 1 to 5 years. The diffuse type is more common in boys, and the localized type in girls. The clinical signs : fever, abdominal pain, weight loss, urinary infection, abdominal mass. Proteus Mirabilis is the main organism in the diffuse form and Escherichia Coli in the focal form. Actually, the disease is often diagnosed before surgery. The treatment is always nephrectomy and the prognosis is very good (benign). The final diagnosis of X.G.P. can only be made by histological examination. Etiopathogenesis remains obscure : urinary tract infection and obstruction, arterial and veinous lesions, local immunity deficiency.

Adolescent↗