Oscar Girón Vallejo

Oscar Girón Vallejo
Hospital Universitario Virgen de la Arrixaca · Departamento de Cirugía Pediátrica

MD

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41
Publications
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173
Citations

Publications

Publications (41)
Article
Full-text available
Umbilical hernia, one of the most frequent pathologies in pediatric surgical practice, is usually corrected with a relatively simple intervention, except in cases where there is a major defect, also called proboscoid hernia. We present a case report of a 20-month male patient that underwent surgical intervention of a giant umbilical hernia with the...
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Full-text available
Objetive: To evaluate long-term renal function and morbimortality in non-syndromic Wilms tumor (WT) survivors. Methods: Retrospective study about WT patients treated in 1993-2017, according to SIOP protocols. Mortality, glomerular filtration rate (GFR), prevalence of hypertension and requirement of dialysis and renal transplant were evaluated. C...
Article
Full-text available
Aim of the study: mTOR inhibitors are being used to treat complex vascular anomalies (VA) without response to conventional treatments. We report our results in pediatric patients treated with sirolimus. Methods: Retrospective review of patients treated with sirolimus between 2014 and 2017, analyzing vascular anomaly type, treatment response and...
Article
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Introduction Three-dimensional (3D) technology is increasingly applied for planning challenging surgical interventions. We report our experience using 3D printing and virtual reconstruction for surgical planning of complex tumor resections in children. Methods Data were obtained from preoperative magnetic resonance. imaging analysis and 3D virtual...
Article
Nephron sparing surgery (NSS) is increasingly utilized to treat patients with bilateral Wilms tumor. We present a case of NSS planning using a three-dimensional computerized and printed model of both kidneys with anatomical structures of interest (parenchyma, renal pelvis, major calyx, renal artery, renal vein, and tumor). This model allowed a bett...
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Full-text available
Introduction Sacrococcygeal teratoma is the most common solid neonatal tumour. The improvement in survival has meant that postoperative sequelae can be diagnosed and treated. The aim of this article is to evaluate the long-term outcomes of patients treated in our centre. Material and methods Records of patients treated for a sacrococcygeal teratom...
Article
Full-text available
Introduction: Sacrococcygeal teratoma is the most common solid neonatal tumour. The improvement in survival has meant that postoperative sequelae can be diagnosed and treated. The aim of this article is to evaluate the long-term outcomes of patients treated in our centre. Material and methods: Records of patients treated for a sacrococcygeal ter...
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Full-text available
Objectives: To study the variability of techniques used for vascular access of central venous devices, totally implanted and external tunneled, as well as polling the use of ultrasound by pediatric surgeons in Spain. Material and methods: Descriptive study of a survey results, conducted by phone, email and online, about 20 items related to the p...
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Objetives: The implantation of long duration intravenous catheters in pediatric population constitutes a challenge due to the size of vascular structures. Because of that, ultrasound is an important tool for vascular accesses in newborns and infants. The objective is to analyze our experience in ultrasound-guided implantation of reservoir type and...
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Introduction: Segmental cervico facial hemangiomas are defined as those longer than 5 cm, affecting a specific facial area. These lesions can be eventually associated with the PHACE syndrome. Our aim is to propose neonatal treatment with propranolol, showing its efficacy/safety, given the scarce evidence on its neonatal use. Clinical observation:...
Article
Objectives: Surgical site infection (SSI) has a considerable impact on neonatal morbidity. There are known risk factors such type of surgery (clean/contaminated), prematurity, surgical length, hypoalbuminemia, previous infection, prolonged mechanical ventilation, and so on. Many perioperative factors have not been studied, opposite to adults. We h...
Article
There is controversy about the convenience of performing a bacteriological peritoneal culture in pediatric appendicitis. We performed a sero-epidemiological survey of the bacteria found in peritoneal swabs from pediatric appendicitis operated in our hospital. Ambispective study. Retrospective revision of the bacteriological results from peritoneal...
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Full-text available
Mesenteric cysts (MC) are benign cystic tumors that grow within mesentery or omentum tissue. We have reviewed the cases of MC reported and operated on in our centre. Retrospective review of clinical records of MC cases during the period 2002-2012 RESULTS: A total of 7 patients were found. Mean age was 5.3 years (range 3-11). Abdominal ultrasound wa...
Article
Full-text available
Objectives Mesenteric cysts (MC) are benign cystic tumors that grow within mesentery or omentum tissue. We have reviewed the cases of MC reported and operated on in our centre. Material and methods Retrospective review of clinical records of MC cases during the period 2002-2012 Results A total of 7 patients were found. Mean age was 5.3 years (ran...
Article
The human disorganization syndrome (HDS) is an extremely rare malformation syndrome that presents with a severe pattern of defects affecting different structures. We describe a newborn girl presenting with HDS. Her clinical features included a large appendage arising from the right buttock as the only alteration, with size and shape of a lower memb...
Article
We sought to retrospectively analyze the clinical presentation, diagnosis, treatment, and outcomes of patients with Parkes Weber syndrome (PWS) who were treated at a single institution. A retrospective review was conducted of medical records of all patients with PWS treated at La Paz Children's Hospital between 1994 and 2010. Ten patients (median a...
Article
We report the case of an 18-month-old boy who presented with caries in the upper central incisors associated with the use of propranolol solution for the treatment of an infantile hemangioma. This side effect of propranolol solution has not been reported before, and it may result from a sucrose-based excipient of the solution, or decreased salivati...
Article
The management of intra-abdominal testis can be challenging, as evidenced by the multiple methods suggested for its assessment and treatment. In this paper, we report our long-term results for our 14-year surgical experience with laparoscopic management. Methods. Retrospective study of laparoscopic interventions performed at our department for nonp...
Article
Retrocaval ureter is a rare disease which is due to a abnormal development of the inferior cava vein. It usually presents with ureteral obstruction, and surgery is needed for symptomatic cases. We present a case of retrocaval ureter and a revision of the literature. A 9 year-old boy who had consulted for macroscopic hematuria. The intravenous urogr...
Article
We report on a 6-year old child with a penile injury resulting in the inclusion of a pellet in the cavernous body, by a fortuitous shot. Conservative approach with elective extraction of the bullet and cavernous body repair led to a satisfactory result, in better anatomic conditions. The patient did not have any perioperative complication. Accident...
Article
We report the case of an 18-month-old boy who presented with caries in the upper central incisors associated with the use of propranolol solution for the treatment of an infantile hemangioma. This side effect of propranolol solution has not been reported before, and it may result from a sucrose-based excipient of the solution, or decreased salivati...
Article
Cholelithiasis in children is an infrequent disease whose incidence has increased over the last few decades. It has its own typical characteristics, different from those present in adults. Laparoscopic cholecystectomy has become the treatment of choice for symptomatic cases, still its connection with right-sided colon cancer and other diseases asso...
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Full-text available
To be hospitalized is a highly distressing event for children. At present, a resort used in Spain and other countries to reduce children's anxiety in the health context are hospital's clown. We studied the effect of the hospital's clowns about the anxiety in children that going to be operated. We recruited 60 children aged 6 to 10 years scheduled t...
Article
Case A 3-year-old boy underwent emergency external ventricular drainage and excision of a fourth ventricle anaplastic ependymoma. A week later, the child was given a ventriculo-peritoneal shunt. Fourteen days after shunting, the child developed a subphrenic abscess and acute cholecystitis that required surgery. Results A Staphylococcus epidermidis...
Article
Endometriosis is an endometrial tissue proliferation that occurs in any extrauterine site and is usually confined to the pelvis. When the terminal ileum is affected, this entity can simulate Crohn's disease both clinically and radiologically. We describe 2 patients previously diagnosed with Crohn's disease with inadequate response to treatment, who...
Article
Endometriosis is an endometrial tissue proliferation that occurs in any extrauterine site and is usually confined to the pelvis. When the terminal ileum is affected, this entity can simulate Crohn's disease both clinically and radiologically. We describe 2 patients previously diagnosed with Crohn's disease with inadequate response to treatment, who...
Article
The utility of the nonsurgical correction of congenital auricular deformities by ear molding and splinting has been previously established. Occasionally, its application cannot be easy, and the later collaboration of the parents is necessary. We report a new method of splinting that simplifies the procedure. prospective, case series. Twenty ears in...
Article
In adult patients, it has been reported that prominent ears can be treated by mattress sutures placed through the anterior aspect of the ear, with a minimally invasive technique. In order to verify the utility of this method in children, we used this technique in our patients. Twenty-two prominent ears were treated in 12 patients between 8 and 11 y...
Article
Gastrointestinal duplication is an infrequent congenital abnormality. Colonic and tubular duplications are the least common. In neonates there are few described cases. It's difficult to identify the duplication preoperatively and a standard surgical approach has not been developped. We report a neonate with bleeding of the digestive tube who presen...

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