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Dive into the research topics where Xavier Tarrado is active.

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Featured researches published by Xavier Tarrado.


Urology | 2008

Median raphe cysts of the perineum in children.

Lucas Krauel; Xavier Tarrado; L. García-Aparicio; Javier Lerena; Mariona Suñol; Joan Rodo; Josep M. Ribó

Median raphe cysts of the perineum are uncommon congenital lesions of the male genitalia. They can be found all the way from the distal penis and scrotum toward the perineum in a midline position. They are considered as congenital alterations in embryologic development. A case of a 6 year-old boy is presented. Review of the literature relevant to children was made regarding the embryologic, diagnostic, and treatment aspects. We believe it is important that adult and pediatric urologists recognize these lesions and their management to provide the appropriate information to the parents.


Journal of Pediatric Urology | 2010

Heminephroureterectomy for duplex kidney: Laparoscopy versus open surgery

L. García-Aparicio; Lucas Krauel; Xavier Tarrado; Marta Olivares; Bernardo García-Nuñez; Javier Lerena; Laura Saura; J. Rovira; Joan Rodo

OBJECTIVE To report our experience of laparoscopic heminephroureterectomy (Hnu) in pediatric patients with duplex anomalies, in comparison to open surgery. PATIENTS AND METHODS Retrospective review of data from patients who underwent Hnu from 2005 to 2008 was performed. The patients were divided into two groups: laparoscopic (LHnu) and open surgery (OHnu). Laparoscopic surgery was performed by transperitoneal approach in majority of cases. Open surgery was performed by retroperitoneal approach in all cases. RESULTS Group LHnu: nine patients (8 females, 1 male) with median age of 14 months (range 3-205). Transperitoneal approach was performed in eight patients. Mean operative time was 182 min (CI 95% 146-217). No conversion to open surgery was necessary and there were no complications. Mean hospital stay was 2.44 days (CI 95% 1.37-3.52). Group OHnu: eight patients (3 females, 5 males) underwent nine heminephrectomies at median age of 6.9 months (range 1-12). Mean operating time was 152 min (CI 95% 121-183). There were no complications and mean hospital stay was 4.38 (CI 95% 2.59-6.16) days. Statistical analysis showed no statistically significant difference (P>0.05) in operating time between groups while mean hospital stay was significant (P=0.021). CONCLUSION The laparoscopic approach is feasible, safe, reduces hospital stay, does not increase operating time and has better cosmetic results. We believe this should be the first option for heminephrectomy.


Fetal Diagnosis and Therapy | 2009

Lung Tissue Blood Perfusion Changes Induced by in utero Tracheal Occlusion in a Rabbit Model of Congenital Diaphragmatic Hernia

R. Cruz‐Martinez; O. Moreno-Alvarez; Jordi Prat; Lucas Krauel; Xavier Tarrado; Montserrat Castañón; Edgar Hernandez-Andrade; Asteria Albert; Eduard Gratacós

Objective: To analyze the impact of in utero tracheal occlusion (TO) on lung tissue blood perfusion, as measured by fractional moving blood volume (FMBV) and conventional spectral Doppler, in a rabbit model of congenital diaphragmatic hernia (CDH). Methods: In 50 fetal rabbits, a left CDH was surgically created at 23 days of gestational age (GA). At 28 days of GA, the surviving CDH fetuses were randomly assigned to undergo either TO (CDH+TO group) or a sham operation (CDH group). Twenty littermates, which were not operated on, served as internal normal controls. At 30 days of GA, lung perfusion estimated by FMBV and spectral Doppler of the proximal intrapulmonary artery were evaluated in the right lung during cesarean section. Doppler waveform analysis included the pulsatility index (PI), peak early diastolic reverse flow and peak systolic velocity. Results: Eleven CDH fetuses, 9 CDH+TO and 20 controls were suitable for the study. CDH fetuses showed a significantly higher PI [8.0 (SD 1.8) vs. 5.22 (SD 1.1), p < 0.001] and lower FMBV [13.5% (SD 4.6) vs. 23.0% (SD 2.1), p < 0.001] than the controls. In contrast, CDH+TO fetuses had a significantly lower PI [5.8 (SD 2.3) vs. 8.0 (SD 1.8), p = 0.015] and higher FMBV [27.6% (SD 7.1) vs. 13.5% (SD 4.6), p < 0.001] than CDH fetuses, with values similar to the controls. Peak early diastolic reverse flow and peak systolic velocity showed nonsignificant differences among the study groups. The lung to body weight ratio at necropsy correlated positively with lung FMBV (r = 0.60, p < 0.001) and negatively with the pulmonary artery PI (r = –0.48, p < 0.01). Conclusion: Tracheal occlusion is consistently associated with increased lung tissue perfusion and decreased intrapulmonary impedance in a rabbit model of CDH.


World Journal of Surgery | 2016

Use of 3D Prototypes for Complex Surgical Oncologic Cases

Lucas Krauel; Felip Fenollosa; Lucía Riaza; Martín Pérez; Xavier Tarrado; Andrés Morales; Joan Gomà; Jaume Mora

IntroductionPhysical 3D models known by the industry as rapid prototyping involve the creation of a physical model from a 3D computer version. In recent years, there has been an increasing number of reports on the use of 3D models in medicine. Printing such 3D models with different materials integrating the many components of human anatomy is technically challenging. In this article, we report our technological developments along with our clinical implementation experience using high-fidelity 3D prototypes of tumors encasing major vessels in anatomically sensitive areas.MethodsThree patients with tumors encasing major vessels that implied complex surgery were selected for surgical planning using 3D prototypes. 3D virtual models were obtained from routine CT and MRI images. The models, with all their anatomical relations, were created by an expert pediatric radiologist and a surgeon, image by image, along with a computerized-aided design engineer.ResultsSurgeons had the opportunity to practice on the model before the surgery. This allowed questions regarding surgical approach; feasibility and potential complications to be raised in advance of the actual procedure. All patients then successfully underwent surgery as planned.ConclusionHaving a tumor physically printed in its different main component parts with its anatomical relationships is technically feasible. Since a gross total resection is prognostic in a significant percentage of tumor types, refinements in planning may help achieve greater and safer resections therefore contributing to improve surgical management of complex tumors. In this early experience, 3D prototyping helped significantly in the many aspects of surgical oncology planning.


Journal of Pediatric Surgery | 2003

Congenital epigastric evisceration: a case report

Montserrat Castañón; Luciano Guimarães; Xavier Tarrado; Begoña San Vicente; Asteria Albert; Luis Morales

A rare case of abdominal wall defect at the epigastric midline is presented. This newborn boy had only the greater omentum eviscerated, and no other abnormalities could be detected. This case does not seem to relate to the abdominal wall defects reported so far in the literature. This singular case contributes to enlarge the spectrum of congenital defects of the abdominal wall.


Actas Urologicas Espanolas | 2016

¿Es necesario realizar una cistouretrografía miccional seriada (CUMS) tardía tras el tratamiento endoscópico exitoso inicial con copolímero de dextranómreo/ácido hialurónico (Dx/HA) para el reflujo vesicoureteral (RVU)?

L. García-Aparicio; E. Blázquez-Gómez; A. Vila Santandreu; J.A. Camacho Díaz; J. Vila-Cots; M. Ramos Cebrian; I. de Haro; O. Martin; Xavier Tarrado

INTRODUCTION Some guidelines recommend an early voiding cystourethrography (VCUG) after endoscopic treatment of vesicoureteral reflux (VUR), but theres no consensus if its necessary a long-term follow-up in these patients. The aim of our study is analyze if its necessary a delayed VCUG after initial successful treatment with Dx/HA. MATERIAL AND METHOD We have reviewed all medical charts of patients that underwent Dx/HA treatment from 2006 to 2010. We have selected patients with initial successful treatment and more than 3 years of radiological and clinical follow-up. We have analyzed late clinical and radiological outcomes. RESULTS One hundred and sixty children with 228 refluxing ureters underwent Dx/HA endoscopic treatment with a mean follow-up of 52.13 months. Early VCUG was performed in 215 ureters with an initial successful rate of 84.1%. The group of study was 94/215 ureters with more than 3 years of follow-up with a delayed VCUG. VUR was still resolved in 79,8% of the ureters. Clinical success rate was 91.7%. The incidence of febrile urinary tract infection in those patients with cured VUR and those with a relapsed VUR was 8 and 15%, respectively; but there were no significant differences. We have not found any variable related with relapsed VUR except those ureters that initially received 2 injections (P<.05). CONCLUSION If our objective in the treatment of VUR is to reduce the incidence of febrile urinary tract infection it is not necessary to perform a delayed VCUG even though the long-term radiological outcomes is worse than clinical outcome.


Actas Urologicas Espanolas | 2010

Laparoscopic pyeloplasty in pediatric patients. Our initial cases and lessons learned

L. García-Aparicio; Xavier Tarrado; Joan Rodo; Lucas Krauel; M. Olivares; J. Rovira; Josep M. Ribó

OBJECTIVE To analyze the initial experience in our first patients with ureteropelvic junction obstruction (UPJO) treated by laparoscopic surgery. PATIENTS AND METHODS All laparoscopic Anderson-Hynes pyeloplasties performed from July 2007 to April 2009 were analyzed. Before surgery, patients underwent a renal ultrasound and isotope renogram. A double J catheter was left in place and subsequently removed. Patients were followed up by ultrasound and renography. RESULTS Fourteen patients with a median age of 8.6 years were analyzed. Preoperative ultrasound showed a median renal pelvis diameter of 34.5 mm. Median operating time was 235 min, and median hospital stay 5.5 days. Median renal pelvis diameter decreased in all patients (13.5 mm). CONCLUSIONS Laparoscopy is an effective procedure for UPJO correction in children, although operating times are still long.


Pediatric Surgery International | 2017

Anal canal duplication and triplication: a rare entity with different presentations

P. Palazón; Victoria Juliá; Laura Saura; I. de Haro; Miguel Bejarano; C. Rovira; Xavier Tarrado

Anal canal duplication (ACD) is the rarest of gastrointestinal duplications. Few cases have been reported. Most cases present as an opening in the midline, posterior to the normal anus. The aim of our revision is to contribute with eight new cases, some of them with unusual presentations: five presented as the typical form, one with a perianal nodule, and two presented as two separate orifices (anal canal triplication). Complete excision was performed in all patients with no complications. ACD is the most distal and the least frequent digestive duplication. Its treatment should be surgical excision, to avoid complications such as abscess, fistulization, or malignization. Anal canal triplication has never been described before.


Journal of Pediatric Surgery | 2017

Ileocolic intussusception: Predicting the probability of success of ultrasound guided saline enema from clinical and sonographic data

A. Soria; L. Riaza; D. Cuadras; Xavier Tarrado; Lucas Krauel

BACKGROUND/PURPOSE To identify factors that dim the efficacy of ultrasound guided saline enema (USGSE) and to design a mathematical model for predicting the probability of success of USGSE. METHODS Retrospective review of patients admitted with the diagnosis of ileocolic intussusception from 2009 to 2014. Demographics, clinical and sonographic data were reviewed. RESULTS 116 first episodes of ileocolic intussusceptions. 109 USGSE attempts were analyzed. Composite reduction rate was 77%. A significant relationship was found between initial location of the intussusception, free peritoneal fluid (OR=0.329, 95% CI: 0.124-0.875), negative Doppler signal and sonographic signs of intestinal occlusion and unsuccessful USGSE. Initial location beyond the splenic angle was an independent risk factor for USGSE failure (OR=0.053, 95% CI: 0.005-0.534). A predictive model based on onset of symptoms, free peritoneal fluid and intussusception location was a reliable tool for prediction (AUC 0.63, 95% CI: 0.53-0.817). Assuming that a patient with less than 75.3% chance of USGSE success is going to fail, we would identify more than 80.9% of the real failures. CONCLUSIONS This predictive model could be a filter selection for the patients at risk of USGSE failure and therefore candidates to further imaging investigations or referral to a surgical unit. LEVEL OF EVIDENCE III.


Pediatric Research | 2014

Airway and vascular maturation stimulated by tracheal occlusion do not correlate in the rabbit model of diaphragmatic hernia.

Jordi Prat Ortells; Asteria Albert; Xavier Tarrado; Lucas Krauel; Rogelio Cruz; O. Moreno-Alvarez; Victoria Fuste; Montserrat Castañón

Background:In animal models of congenital diaphragmatic hernia (CDH), tracheal occlusion (TO) has induced maturation of both airway spaces and vascular structures. Airway and vascular response to TO are assumed to occur in parallel. This study aims to describe and measure the relationship between airway and vascular maturation induced by TO.Methods:A rabbit model of CDH on gestational day (GD) 23 and TO on GD 28 (term = GD 31) has been used. Two study groups have been defined: DH (diaphragmatic hernia) and TO (DH treated with TO). Animals were collected on GD 30 and blood flow data of the pulmonary artery (pulsatility index (PI) and fractional moving blood volume) were ultrasonographically measured. Lung morphometry consisted of measurements of radial alveolar count (RAC) and arterial muscular thickness.Results:Animals in the DH group (n = 9) had the worst hemodynamic parameters; their lungs were hypoplastic and had the thickest arterial muscular layer. Animals in the TO group (n = 10) had all these effects reversed. There were no correlations among hemodynamic, airway, and vascular parameters, except for RAC and PI (r = −0.528, P = 0.043).Conclusion:Airway and vascular maturation after TO appear to be uncorrelated effects. TO could trigger several pathways that separately regulate airway and vascular responses.

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Lucas Krauel

University of Barcelona

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Joan Rodo

University of Barcelona

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J. Rovira

University of Barcelona

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Laura Saura

University of Barcelona

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Luis Morales

University of Barcelona

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I. de Haro

University of Barcelona

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