Biomedical subjects

F Lovaco Castellano

Publications and source records attributed to F Lovaco Castellano.

At least 19 recordsLinked to original sources

PubMed1995

[Endourologic treatment of uretero-ileal stenosis].

OBJECTIVES: Ureterointestinal stricture represents a serious problem whose management has traditionally been by open surgery. Endourological treatment is an alternative that is generally free from the complications of open surgery, but with a lower success rate. The efficacy of endourological treatment is analyzed in 14 cases of ureteroileal stricture (12 patients) and the different treatment options are discussed. METHODS: Ureteroileal stricture was managed endourologically in 9 of 13 cases (69%) by dilatation (6 cases), incision+dilatation (2 cases) and stenting (1 case). RESULTS: Of the 6 cases submitted to dilatation, 3 recurred at 6 months, 2 remained patent at 18 and 24 months, respectively, and 1 was lost to follow up because the patient underwent reimplantation (40% success rate). The two cases submitted to incision are patent at 18 and 19 months, respectively. CONCLUSIONS: The overall success rate for endourological treatment of ureteroileal stricture is 28% (4/14 cases) at 19 months mean follow up.

Aged↗

PubMed1995

[The endoscopic section of ureterosigmoid stenosis].

OBJECTIVES: Herein we describe the technique of endoscopic incision in the treatment of ureterointestinal stricture. METHODS: A teflon sheathed stent is placed in the stenotic ureterointestinal segment utilizing a combined approach (percutaneous antegrade endoscopic transrectal) and a balloon is passed over the stent retrogradely. The balloon is then inflated and is pulled retrogradely to invaginate the anastomosis into the rectal lumen. Thereafter, endoscopic incision of all the layers and the entire length of the stricture is performed by electrocautery. RESULTS: The radiological evaluation three months postoperatively show marked morphological and functional improvement of the compromised renal unit. CONCLUSIONS: In patients with a ureterointestinal urinary diversion, endoscopic incision of the stricture at the site of the anastomosis is a valid therapeutic technique, after discarding the presence of urinary infection or tumor at this site. Furthermore, open surgery can be done in the event this technique fails to achieve the desired results.

Adult↗

PubMed1995

[Intraluminal invagination technic for the incision of ureterointestinal stenosis].

OBJECTIVE: This paper describes the endoscopic incision of uretero-ileal anastomotic strictures by a combined approach (percutaneous antegrade and endoscopic retrograde) using the intraluminal invagination technique over a balloon dilatation catheter. METHODS: The different steps of the surgical procedure of incision of the stenotic segment of different techniques of ureteroileal diversion (Bricker, Camey, ureterosigmoidostomy) are described in detail. Endoscopic images and those from the image intensifier are shown. RESULTS: Of the 6 cases described herein, incision was achieved in 5 and in 1 case stenting of the stenotic segment could not be achieved. CONCLUSIONS: Intraluminal invagination of the stenotic segment considerably facilitates endoscopic incision.

Catheterization↗

PubMed1994

[Abnormalities of the inferior vena cava: the retrocaval ureter].

We report three cases of retrocaval ureter with a clear indication for surgery: one patient with severe hydronephrosis and two cases with mild dilatation of the renal pelvis, calyces and upper ureter, both complicated by renal stones. The initial diagnosis was based on the ultrasound and the intravenous urogram findings, and was confirmed by a retrograde pyelogram in combination with cavography and CT. All patients were submitted to surgery (1 nephrectomy and 2 uretero-ureteric anastomosis). Renal stone was resolved at the same time in one case, and by ESWL after surgery in the other.

Adult↗

PubMed1994

[Endoscopic treatment of congenital paraureteral diverticuli and cavities].

We report 4 cases of primary congenital paraurethral diverticula or cavities (3 diverticula and 1 cyst of Cowper's glands) that were treated by endoscopic surgery. All the foregoing cases were diagnosed as primary in the absence of coexisting pathologies or associated disorders. The wall between the diverticulum and the urethral lumen was sectioned endoscopically. All patients recovered normal clinical and morphological status.

Adult↗

PubMed1994

[Bone lithiasis: experimental and clinical histopathology].

There is scant literature on bone lithiasis, a disease entity whose diagnosis depends fundamentally upon the anatomopathological findings. The data gleaned from animal experiments have been shown to overlap with those observed in the clinical setting. Conservative treatment should include resection of the urothelial bony metaplasia to avoid recurrence. The importance of making a correct diagnosis cannot be overemphasized since this condition may be associated with a tumoral lesion and a close follow-up is therefore warranted.

Adult↗

PubMed1993

[The therapeutic approach in vascular damage from pyelocaliceal endoscopic urology].

Six cases of vascular lesion associated with percutaneous removal of renal calculi are described. The lesions had been caused during percutaneous access or ultrasound fragmentation of the stone. Those that had resolved spontaneously have not been included. When vascular injury is suspected during the procedure, the appropriate measures must be taken to resolve the different complications, such as arteriovenous, arteriocaliceal or venocaliceal fistula. Since there is little reference to this subject in the Spanish literature, the experience described herein may be of interest to the urologist who has only recently begun to perform this technique.

Arteriovenous Fistula↗

PubMed1993

[Endourologic treatment of tumors of the superior urothelium: results and clinical course].

Presentation of 31 patients with suspected diagnosis of upper urothelium tumour seen between 1986 and 1991. In agreement with our study protocol and the endourological treatment followed in this type of tumours, there were eight false positive, which were excluded. Five cases were treated by retrograde ureterorenoscopy while in the remaining 18 cases the anterograde percutaneous approach was used. A review of both the aspects of endoeurological treatment and the evolution of these patients during that period is included.

Aged↗

PubMed1993

[Laparoscopic signs of testicular absence].

Unlike the other exploratory techniques (US, arteriography, phlebography, CT and MRI), laparoscopy constitutes the only reliable diagnostic method for absent testis, which has a high incidence in children with non palpable testes. The finding of the blind-ending spermatic veins and deferent duct confirms the diagnosis of absent testis.

Child, Preschool↗

PubMed1990

[Efficacy and limitations of piezoelectric extracorporeal lithotripsy in kidneys with anatomical abnormalities].

We analyze the results achieved by extracorporeal piezoelectric lithotripsy (EPL) in 40 renal units with the following anatomic anomalies: solitary kidney (10), chronic pyelonephritis (8), medulospongiosis (6), caliceal diverticula (5), intrarenal cysts (5), pyeloureteric duplicity (3), megacaliosis (1), horseshoe kidney (1), and ureterocele (1). Adequate stone fragmentation was achieved in 80% of the patients with solitary kidney; 20% developed obstructive complications (1 patient with a 15 mm.-stone and 1 patient with obstruction of double-J catheter). At 6 months, stone remnants persist in 71.4% (5/7) after stone fragmentation in those cases with pyelonephrosis. The rates for fragmentation, elimination of remaining stone fragments, and disappearance of pain are 80%, 50% and 100% for diverticular caliceal calculi, and 67%, 50% and 100% for those in kidney with medulospongiosis. We can conclude that placement of a double-J catheter is useful before EPL in patients with solitary kidney and calculi greater than 10 mm. EPL is the first therapeutic approach in symptomatic lithiasis in caliceal diverticula or precaliceal cystic dilatation (medulospongiosis).

Adolescent↗

PubMed1981

[The determination of prolactin levels in men suffering from impotence (author's transl)].

Basal prolactin, FSH, LH and testosterone levels were determined in 47 patients presenting with impotence. Clinical history, physical examination, general analysis and personality questionnaire were normal. In two patients taking medications (imipramine and dogmatil), prolactin levels were high. The other patients had normal hormone levels. The authors discuss the various mechanisms which play a role in the secretion of prolactin and the various means available to assess changes therein.

Adult↗

PubMedDate not supplied

[Endourologic treatment of tumor of the upper urothelium: results and clinical course].

Presentation of 31 patients with suspected diagnosis of upper urothelium tumour seen between 1986 and 1991. In agreement with our study protocol and the endourological treatment followed in this type of tumours, there were eight false positive, which were excluded. Five cases were treated by retrograde ureterorenoscopy while in the remaining 18 cases the anterograde percutaneous approach was used. A review of both the aspects of endourological treatment and the evolution of these patients during that period is included.

Aged↗

PubMedDate not supplied