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F Rivilla Parra

Publications and source records attributed to F Rivilla Parra.

15 recordsLinked to original sources
PubMed2005

[Subureteral polydimethylsiloxane injection for the endoscopic treatment of vesicoureteral reflux].

INTRODUCTION: Endoscopic subureteral injection has been successfully used to treat vesicoureteral reflux (VUR) in children. The aim of this study was to review our results with subureteral polydimethylsiloxane injection in terms of effectiveness, long term follow-up and morbidity. MATERIAL AND METHOD: Twenty-eight children with VUR were treated with this technique. VUR was unilateral in eight patients (28.6%) and bilateral in 20 patients (71.4%). Indications for endoscopic treatment were the same as those for open surgery. The polydimethylsiloxane implant was injected transureterally below the ureteral meatus in 50 ureters on an outpatient basis. Reflux grade was low (II-III) in 36% and high (IV-V) in 64%. RESULTS: The mean follow-up was 18 months (12 months-4 years). VUR was corrected in 43 ureters (86%) corresponding to 21 patients. Reflux resolved in 40 ureters after one polydimethylsiloxane injection (80%) and in 43 ureters (86%) after two injections. An endoscopic retreatment to correct the reflux was performed in six ureteral units. Cystoscopic findings in these patients with endoscopic failure were mound displacement toward the bladder neck in five ureters and marked volume loss on the mound in one. All these patients underwent a second subureteral dose, which controlled VUR in three ureters (50%). CONCLUSIONS: Our results confirm that endoscopic subureteral polydimethylsiloxane treatment is a simple procedure with low morbidity that is well tolerated by the patient. In our experience, it can be used in double ureters. The effectiveness of this procedure seems to be related to the grade of reflux, the cystoscopic appearance of the ureteral orifice, volume loss and mound displacement.

Child↗
PubMed1997

[Diagnosis and treatment of neonatal hydronephrosis. Influence of prenatal diagnosis].

OBJECTIVES: The objective was to study hydronephrosis, the most common renal malformation during the neonatal period. PATIENTS AND METHODS: We have studied 85 patients (119 renal units) with hydronephrosis. Prenatal and neonatal diagnosis were performed in 83% and 17%, respectively. Diagnosis was made by ultrasound, intravenous urography, voiding cystourethography and diuretic renogram. RESULTS: The malformations were as follows: Ureteropelvic junction obstruction (UPJ; 40 cases), obstructive megaureter (OM; 16 cases), non-obstructive megaureter (NOM; 9 cases), multicystic kidney (MK; 8 cases), renoureteral duplication (RD; 8 cases) and posterior urethral valves (PUV; 4 cases). Surgical treatment was undergone in 39 cases (14 with UPJ, 10 with OM, 4 with NOM, 4 with MK, 3 with RD and 4 with PUV). Thirty-seven of these cases had prenatal diagnoses. CONCLUSIONS: Conservative therapy was followed in 46 patients (26 with UPJ, 6 with OM, 5 with NOM, 4 with MK and 5 with RD). Thirty of these were prenatally diagnosed. Postnatal mean follow-up was 36 months, using diagnostic methods described previously. Seven cases died (1 from sepsis and 6 others from associated malformations) and 78 patients have good evolution after surgical and conservative treatments.

Female↗
PubMed1995

[Venography and percutaneous embolization of the spermatic vein with spring coil as treatment of the varicocele in childhood].

The treatment of varicocele is controversial in boys and it is a contributing factor to male infertility. Recently it has been proposed that earlier therapy of a varicocele during this period may improve the prognosis of infertility. We review our experience with the diagnosis and management of left varicocele in 30 pediatric patients 6 to 15 years old. All patients had clinically palpable varicocele. All were managed under local anesthesia by spermatic venography and percutaneous transcatheter embolization of the internal spermatic vein with spring coils. All achieved satisfactory occlusion, and during the follow up from 13 years to 9 months there was only one recurrence, noted in a patient 6 months after the procedure. Internal spermatic venograms allowed precise coil placement relative to collateral veins which could cause recurrence. Complications developed were phlebitis of the pampiniform plexus, leading to swelling and erythema of the left scrotum and mild flank pain, these symptoms resolved without sequelae. This a safe and effective nonsurgical method of obliterating varicoceles in children.

Adolescent↗
PubMed1989

[Surgery of lung metastasis in childhood].

From 1975 to 1987, we have operated 20 cases with lung metastases. They were 12 females and 8 males with ages between 1,6 and 12 years old (average of 5 years). The histology of the primary neoplasia was: 13 cases with Wilms' Tumors, 3 cases with Ewing's Sarcoma and 1 case with Neuroblastoma, Rhabdomiosarcoma, Hepatoblastoma and Neuroectodermic Tumor of Askin. We found 38 metastases and there were performed through a Thoracotomy 28 wedge resection, 7 pulmonary lobectomies and 3 biopsies. The operative mortality was 0%. The most frequent location of the lesion were on medium and lower lobule of the right lung. The survival was 70% (14 cases) after 4 years of average of the follow up. The survival for Wilms Tumors was 61% (8 cases) and all patients with Ewing's Sarcoma, Rhabdomiosarcoma, Neuroblastoma and Neuroectodermic Tumor of Askin were alive. The Thoracotomy is a useful method for therapy of tumors in children with lung metastases associated to chemotherapy and radiotherapy.

Child↗
PubMed1989

[Diuresis renography in the postoperative course of pyeloureteral stenosis].

Ureteropelvic junction (UPJ) obstruction constitutes the most common form of upper urinary tract obstruction in children. We study the role of diuretic renography and its correlation with other diagnostic methods for postoperative evaluation of this malformation. We reviewed 13 patients, 10 males and 3 females aged 1 months to 15 years, and with right UPJ obstruction in six and left obstruction in seven. In all of them pre and postoperative IVP, abdominal ultrasound, diuretic renography, and pressure flow studies. Were performed our results demonstrated a non-correlation between the findings of excretory urogram, abdominal ultrasound and diuretic renography and a close relation between pressure flow studies and diuretic nephrography. This two last methods are good tools for assessment of UPJ obstruction.

Adolescent↗
PubMed1988

[Etiopathogenic study of spontaneous perforation of the biliary tract].

Spontaneous perforation of extrahepatic bile duct is a rare entity, but is the second cause of surgical jaundice in the newborn period after biliary atresia. We review the etiological theories and three patients with this anomaly. Centrolobulillar cholestasis was present in all cases. Parietal ischemic necrosis was seen in one case, obstructive lesions (extrahepatic biliary atresia) in two and malformative lesions (choledochal cyst) in the last patient. A developmental error and a small circumscribed area of duct wall weakness have been the most accepted factors involved in its pathogenesis. However we have found histologic and morphologic evidence that ratify the obstructive and vascular lesions as relevant elements in the etiology of the spontaneous perforation of the biliary tract.

Bile Duct Diseases↗
PubMed1987

[Vascular rings].

30 patients with vascular rings operated between 1966 and 1985 are described. Age, sex and symptomatology are studied. Nineteen had a double aortic arch, 9 cases had anomalous subclavian artery, 6 patients had right aortic arch with ductus or ligamentum arteriosum, 1 patient had pulmonary artery sling and 1 patient had right aortic arch and ductus arteriosus and anomalous subclavian artery. Associated congenital malformations were seen in 8 (27%) patients. Basic surgical procedures include a left thoracotomy, identification of the aortic arch anatomy and division of anomalous ring. The aortic arch malformations have a good prognosis with early diagnosis ans surgical treatment.

Abnormalities, Multiple↗
PubMed1987

[Bilateral diaphragmatic hernia].

Six cases of bilateral diaphragmatic hernia are described between 145 congenital diaphragmatic hernia in Department of Pediatric Surgery, "La Paz" Children's Hospital of Madrid since 1966 to 1986. All patients showed symptoms early after birth. Death occurred almost immediately in five cases, for the severe bilateral pulmonary hypoplasia and the malformations associated in the most them (cardiac, genitourinary, digestive system and metabolic). One patient was alive for 22 days. We study the obstetrical history and the evolution of our patients.

Female↗
PubMed1987

[Evaluation study of laparatomy in Hodgkinś disease].

We report 30 patients with Hodgkin's disease treated at "La Paz" Children Hospital of Madrid, from 1965 to 1984, to determine the role of the laparotomy in modifying the presurgical clinic stage. Laparotomy changed this stage in 40% of patients, in whom stage advanced from I or II to III or IV. The only side effect of surgery was pneumococcal sepsis in two patients. All children were treated with polyvalent pneumococcal vaccine and penicillin or erythromycin, before laparotomy.

Adolescent↗