Denis Filiatrault
Université de Montréal
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Featured researches published by Denis Filiatrault.
Journal of Pediatric Surgery | 1991
Mary L. Brandt; Francois I. Luks; Denis Filiatrault; Laurent Garel; Jean G. Desjardins; Sami Youssef
The antenatal diagnosis of ovarian cysts poses a therapeutic dilemma because the natural history of these lesions is not well known. A retrospective review from 1980 to 1989 showed 29 ovarian cysts in 27 patients diagnosed by prenatal ultrasonography performed between 28 and 36 weeks of gestation. Nineteen cysts were initially observed. Eleven cysts resolved (diameter less than 2 cm), three are decreasing, three were lost to follow-up, and two underwent resection. Eight patients underwent surgical exploration immediately following birth. The diagnosis of benign ovarian cyst was confirmed histologically in all cases. A review of the literature showed an additional 230 cases of antenatally diagnosed ovarian cysts. Simple cysts of the ovary tend to resolve spontaneously and, therefore, may be treated conservatively. Serial ultrasonography allows accurate diagnosis and long-term assessment of ovarian cysts in the neonate and may prevent unnecessary oophorectomy. Patients with cysts larger than 4 cm may be candidates for percutaneous aspiration, or should undergo removal of the cyst because of a significant risk of torsion. Complex cystic masses, symptomatic ovarian cysts, and cysts that do not resolve should be removed.
Journal of Trauma-injury Infection and Critical Care | 1991
Francois I. Luks; A. Lemire; Dickens Saint-Vil; M. Di Lorenzo; Denis Filiatrault; Alain Ouimet; W. J. Pokorny; D. B. Pilcher; J. Tepas; M. Coburn
The occult nature of blunt abdominal trauma justifies the need for reliable diagnostic adjuncts to physical examination. From June 1988 to June 1991, 259 children admitted to the general surgery/trauma service underwent abdominal ultrasonographic scanning (US). A total of 116 abdominal lesions were found in 81 patients. Ultrasonography alone had a sensitivity of 89%, a specificity of 96%, and an overall accuracy of 94%, as determined against the overall diagnostic workup and clinical course (mean follow-up, 17.4 weeks). In 44% of the patients, US was used alone; in 49% one or two additional tests were performed, and in only 7% were three or more tests required. Compared with computed tomography, US is more versatile, easier to perform in children, and more cost effective, even with the addition of a functional imaging modality. Although not demonstrated by this preliminary, retrospective study, Doppler US appears to be the logical complement to abdominal ultrasonography in the evaluation of children with blunt abdominal trauma.
Pediatric Radiology | 1987
Denis Filiatrault; D. Longpré; Heidi Patriquin; Gilles Perreault; A. Grignon; J. Pronovost; Jacques Boisvert
During a 5.5-year retrospective study (1979–84) 170 children with blunt abdominal trauma were investigated with intravenous urography (IVU), ultrasound (US) and scintigraphy. For the investigation of the last 71 children (after 1982) a 4th generation CT scanner was available in the same department. The results of radiologic investigations were compared with clinical outcome in 157 and results at laparotomy in 13 children. During the study period, real time US became the first line screening tool, and was combined with IVU in suspected renal trauma. In spite of permanent accessibility of CT since November 1982, the latter was used only in complex diagnostic problems or in children with multiple injuries (8% of the series). There were no deaths resulting from abdominal trauma. During the study, the incidence of splenectomy and exploratory laparotomy decreased, and no diagnostic peritoneal lavage were performed after 1980.
Pediatric Radiology | 2004
Sanna Toiviainen-Salo; Laurent Garel; A. Grignon; Josée Dubois; Françoise Rypens; Jacques Boisvert; Gilles Perreault; Jean Claude Décarie; Denis Filiatrault; Chantale Lapierre; Marie-Claude Miron; Nancy Bechard
This review article aims at summarizing the data regarding fetal and neonatal hydronephrosis, at correlating controversial data with the differences in the practice of obstetrical sonography from one country to another, and finally, at presenting our own criteria for fetal renal collecting system dilatation along with our own guidelines of postnatal investigation.
Journal of Pediatric Surgery | 1992
Dickens St-Vil; Salam Yazbeck; Francois I. Luks; B.J. Hancock; Denis Filiatrault; Sami Youssef
Cholelithiasis in infants is rare, and has usually been associated with hemolysis, ileal disease, congenital anomalies of the biliary tree, hyperalimentation, and prolonged fasting. With the increased use of abdominal ultrasonography (US), more cases of cholelithiasis are being discovered. We report our experience with 13 infants diagnosed on abdominal US to have gallstones. There were 9 boys and 4 girls with an average age at diagnosis of 2.6 months (range, 0 to 9 months). Predisposing factors could be identified in only 6 of the 13 patients. Two patients with obstructive jaundice underwent cholecystectomy and common bile duct exploration. One patient with choledocolithiasis and common bile duct dilatation was observed. His stone passed spontaneously, with resolution of symptoms. Ten patients without cholestasis remained asymptomatic, with disappearance of lithiasis in five of them. Neonatal cholelithiasis is more common than previously suspected; it seems to affect males more often than females and is usually not associated with known predisposing factors. It appears to be a temporary, self-limiting phenomenon, and an aggressive approach is not warranted in the asymptomatic infant. Surgical or radiological intervention should be reserved for the symptomatic patients or those with underlying lithogenic disorders.
Pediatric Radiology | 1989
C. Morin; Denis Filiatrault; Pierre Russo
Pulmonary sequestration and congenital cystic adenomatoid malformation (CCAM) are two infrequent congenital pulmonary diseases. The combination of these two entities is rare. We report a case where the antenatal ultrasonography showed a left pulmonary mass suggesting CCAM. The US done after birth revealed an aberrant vascularisation. Pathologic examination confirmed the association of both lesions.
Pediatric Radiology | 1991
Laurent Garel; Denis Filiatrault; Mary L. Brandt; A. Grignon; Jacques Boisvert; Gilles Perreault; Heidi Patriquin
A retrospective study from 1980 to 1990 shows 29 ovarian cysts in 27 patients diagnosed by prenatal ultrasound performed between 28 and 38 weeks of gestation. Ten patients underwent surgery, 17 patients were observed with serial ultrasound. Delayed good quality sonograms after spontaneous resolution of the cyst in a selected group of 7 patients showed restoration of a normal ovarian anatomy. The size of the cyst and/or its sonographic characteristics are the 2 main factors for deciding a conservative or a surgical management.
Pediatric Radiology | 2000
Laurent Garel; Josée Dubois; G. Azzie; Denis Filiatrault; A. Grignon; Salam Yazbeck
Objective. To assess the effectiveness of preoperative manual detorsion in acute testicular torsion.¶Materials and methods. Between June 1998 and March 1999, seven patients presenting with testicular torsion underwent manual manipulation under US monitoring in order to restore the flow to the testis prior to surgery (orchidopexy). All detorsions were lateral in direction. The success of the manoeuvre was assessed both clinically and sonographically and confirmed at surgery.¶Results. Six manoeuvres were successful in restoring flow to the testis. The failed attempt in the seventh patient was due to failure to manipulate beyond an initial 1 1/2 rotations (540 °).¶Conclusions. Preoperative detorsion is the fastest way to relieve testicular ischaemia. However, manual detorsion of the spermatic cord is not a substitute for surgical exploration and bilateral orchidopexy is still necessary.
Pediatric Radiology | 1996
Josée Dubois; Laurent Garel; Heidi Patriquin; Khazal Paradis; Sylviane Forget; Denis Filiatrault; Andrée Grignon; Pierre Russo; Dickens St-Vil
Hereditary tyrosinemia type 1, a common genetic disorder in the province of Quebec, is characterized by a deficiency of fumarylacetoacetate hydrolase. In this autosomal recessive disorder of tyrosine metabolism, the accumulation of succinyiacetone leads to neurologic crises, acute and chronic liver failure, complex renal tubulopathy, rickets and a hemorrhagic syndrome. Liver transplantation has dramatically modified the spontaneous course of this lethal disease. The present paper describes the imaging features of tyrosinemia in 30 patients followed from 1980 to 1995 at Hôpital Sainte-Justine, Montreal, Canada.
Pediatric Radiology | 1990
Heidi Patriquin; Gilles Perreault; A. Grignon; Jacques Boisvert; Denis Filiatrault; Laurent Garel; Hervé Blanchard
A study was conducted on 156 children, in whom the portal veins were measured using standard real time ultrasonography. Knowledge of the normal dimension may be important in patients with liver disease.