Carlos Delgado-Miguel

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Verified

Carlos verified their affiliation via an institutional email.

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• MD
• Research Associate at Hospital Universitario La Paz

Background: Video-assisted thoracoscopic surgery (VATS) is considered the treatment of choice in children with subpleural bullous lesions, in which endoscopic staplers are routinely used. Recently, a new generation of electronically powered stapling systems was developed. Our aim is to compare the use of a new 8-mm electronic endostapler with a 12-...

While approximately 90% of Meckel's diverticula are asymptomatic, they can manifest with a wide spectrum of complications with a mortality rate of 0.001%. The differential diagnosis is broad, with appendicitis being the main consideration when diverticulitis is the presenting symptom. This study aims to characterize a population with symptomatic Me...

Background Neutrophil-to-Lymphocyte Ratio (NLR) has been postulated as a useful inflammatory biomarker in the prediction of complications in different pediatric diseases. Our aim is to analyze the predictive value of NLR in the development of complications in burned children, both in the short-term (need for grafting) and in the long-term (need for...

Aim: To describe the usefulness of cellular indices in the diagnosis of ulcerative colitis (UC). Methods: Diagnostic study of patients under 15 years of age undergoing colonoscopy±esophagogastroduodenoscopy for suspected inflammatory bowel disease between 2015 and 2022 in a pediatric hospital. Patients with normal biopsy and anatomopathological...

Introduction : Neutrophil-to-lymphocyte ratio (NLR) is an inflammatory biomarker (hemogram-derived-ratio) related to ischemic-inflammatory diseases. Its usefulness in the diagnosis of pediatric testicular torsion (TT) has recently been reported, although its prognostic implication has not been evaluated. Our aim is to analyze the role of NLR in the...

Early debridement of partial-thickness burns and coverage with skin substitutes is currently the standard of care in children, although there is currently no “gold standard” skin substitute. Our aim is to compare the effectiveness of three different skin substitutes, analyzing the medium- and long-term outcomes. Methods A retrospective study was c...

Background Colorectal surgical procedures may benefit from a minimally invasive approach in children, although there are few studies. Methods A retrospective, single‐centre observational study was conducted on paediatric patients who underwent colorectal robotic‐assisted surgery between 2011 and 2022. Results A total of 50 patients (33 male; 17 f...

Background: Augmentation cystoplasty (AC) is a useful alternative for the treatment of neuropathic bladder, although there are few studies reporting long-term results. We assess our experience over the last 30-years. Methods: A retrospective study was conducted in patients with neuropathic bladder in whom AC was performed in our institution betw...

Background: This study aimed to analyze the systemic-immune inflammation index (SII) 's diagnostic performance in diagnosing acute appendicitis (AA) and discriminating between complicated acute appendicitis (CAA) and non-complicated acute appendicitis (NCAA). Methods: This review was registered in PROSPERO (CRD42024587430). We included prospective...

Background This study aimed to analyze the systemic-immune inflammation index (SII) 's diagnostic performance in diagnosing acute appendicitis (AA) and discriminating between complicated acute appendicitis (CAA) and non-complicated acute appendicitis (NCAA). Methods This review was registered in PROSPERO (CRD42024587430). We included prospective or...

Background Neutrophil-to-Lymphocyte Ratio (NLR) has been postulated as a useful inflammatory biomarker in the prediction of complications in different pediatric diseases. Our aim is to analyze the predictive value of NLR in the development of complications in burned children, both in the short-term (need for grafting) and in the long-term (need for...

Introduction Robotic-assisted surgery has become widely used in adult gynecology, but has not yet been widely used in pediatric patients. We report our initial experience in robot-assisted pediatric gynecologic surgery to determine its feasibility, safety and limitations in children. Methods A retrospective single-center study was performed among c...

Introduction: Early debridement of partial-thickness burns and coverage with skin substitutes is currently the standard of care in children, although there is currently no “gold standard” skin substitute Our aim is to compare the effectiveness of three different skin substitutes, analyzing the medium and long-term outcomes. Methods: A retrospective...

Introduction: Pediatric ovarian torsion (OT) is an emergency condition that remains challenging to diagnose because of its overall unspecific clinical presentation. The aim of this study was to determine the diagnostic value of clinical, ultrasound, and inflammatory laboratory markers in pediatric OT. Methods: We performed a retrospective multicent...

Background This systematic review aimed to analyze the potential etiopathogenic role of a type I hypersensitivity reaction in the development of overall acute appendicitis (AA), non-complicated acute appendicitis (NCAA), and complicated acute appendicitis (CAA). Methods This review was prospectively registered in PROSPERO (CRD42024516547). We inclu...

Background: This systematic review aimed to analyze the potential etiopathogenic role of a type I hypersensitivity reaction in the development of overall acute appendicitis (AA), non-complicated acute appendicitis (NCAA), and complicated acute appendicitis (CAA). Methods: This review was prospectively registered in PROSPERO (CRD42024516547). We inc...

Aim of the study: Spigelian hernias (SH) are exceptional in paediatric population. Isolated cases have been reported, most of them acquired and related to high-energy trauma. Case presentation: A 13-year-old male patient with no medical history presented with a high-energy closed inguino-abdominal trauma secondary to the impact of bicycle handleb...

Aim of the study: The technical complexity and limited casuistry of neonatal surgical pathology limit the possibilities of developing the necessary technical competencies by specialists in training. The aim of this study is to create a tool for the training of paediatric surgeons in the open correction of oesophageal atresia. Methods: We conceptua...

Aim of the study: The possibilities of performing neonatal surgical procedures for residents are limited, given the low volume of pathology and its complexity. Training with previous models is essential and contributes to increased patient safety. Our was is to develop a training model of jejunoileal atresia for open surgical correction. Methods:...

Introduction Pediatric ovarian torsion (OT) is an emergency condition that remains challenging to diagnose because of its overall unspecific clinical presentation. The aim of this study was to determine the diagnostic value of clinical, ultrasound and inflammatory laboratory markers in pediatric OT. Methods We performed a retrospective multicentri...

Laparoscopic elective splenectomy is considered as a safe surgical treatment of spleen non-traumatic blood disorders. However, robotic assisted splenectomy is becoming a promising alternative, although there are scarce studies in pediatric patients. Our aim is to compare the effectiveness and associated costs of both procedures in children. A singl...

Inguinal herniation of ureter is an uncommon finding among children, with scarce reported cases in the literature to date, that can potentially lead to obstructive uropathy. We report a case of ureteroinguinal herniation discovered during an inguinal hernia repair in a patient with antenatally ultrasound finding of hydronephrosis. A 2-month-old inf...

Introduction: The management of acute scrotal swelling can be challenging in neonatal age, with scrotal abscess being great mimickers of testicular torsion. Case presentation: We report a 12-day-old previously healthy male infant who presented with 72 h of increasing right-sided scrotal swelling, without fever or irritable behavior. The left tes...

Background: Acellular dermal matrices have long been used for complex abdominal wall closure and, more recently, for ostomy reconstruction. Purpose: To describe ostomy reconstruction with acellular flowable dermal matrix (AFDM) in a pediatric patient with a complex abdominal wall defect. Case report: A 14-year-old female who was diagnosed with...

Background: Hematologic conditions such as hereditary spherocytosis, sickle cell disease, and idiopathic thrombocytopenic purpura are frequently linked to cholelithiasis. In instances where symptoms are present, simultaneous cholecystectomy and splenectomy are commonly recommended. Our aim was to assess the outcomes of robotic-assisted procedures c...

Background Neutrophil-to-lymphocyte ratio (NLR) has been recently postulated as an inflammatory biomarker for the diagnosis of vesicoureteral reflux (VUR). The aim of this study is to determine the role of NLR as a predictor of evolution of primary VUR in patients with associated acute pyelonephritis (APN). Methods A retrospective observational co...

The locoregional distribution patterns of lymphatic malformations (LM) in the upper extremity have not been described in the scientific literature. Twelve patients were diagnosed with a LM in their upper extremities between 1998 and 2021 at our center. In all cases, these were isolated malformations. Nine patients (75%) presented an ulnar distribut...

To analyze the role of neutrophil-to-lymphocyte ratio (NLR) in predicting the development of postoperative complications and readmission after appendectomy in children. A retrospective single-centered case–control study was conducted on children who underwent appendectomy between 2017 and 2020. Demographics, time since symptoms onset, laboratory te...

Objectives: Mucosal appendicitis is defined by neutrophilic infiltration limited to the mucosa, with no transmural invasion; it is currently a controversial entity. The aim of our study was to determine whether mucosal appendicitis represents an early stage of acute appendicitis (AA) or should be considered a negative appendectomy. Methods: A re...

Introduction: The use of near-infrared fluorescence (NIRF) imaging with indocyanine green (ICG) is actually considered as a very useful tool in decision-making strategy during challenging surgical procedures with a growing evidence in the literature. Our aim is to perform a systematic review focusing on ICG applications in gastrointestinal surgery...

Background: The routine use of sedoanalgesia has increased the number of potential minor surgical procedures that can be performed in the Emergency Department (ED) without requiring general anesthesia and, thus, hospital admission. Our aim is to analyze the effectiveness and safety of the use of sedoanalgesia in childhood burns treated in the ED....

Introduction: Robotic-assisted redo fundoplication has some advantages compared to the laparoscopic approach in adults, although to date there are no studies in children. Methods: A retrospective case-control study was performed among consecutive children who underwent redo antireflux surgery between 2004 and 2020, divided into two groups: LAF g...

Introduction Appendectomy has traditionally been considered as a training operation for junior pediatric surgeons during their training period. However, with the increase of laparoscopic appendectomy, there has been a growing concern about the performance of this procedure by junior trainees. Our aim is to analyze intra-/postoperative appendectomy...

Objective: To describe a basic training program in microsurgery and to analyze the learning curve through the process, including improvement in operating times and functional outcome. Materials and methods: Our learning program included basic, transitional, and experimental models. The experimental model included tail vein cannulation, intestina...

Background: Surgical site infection (SSI) is one of the most common complications after appendectomy, which carries high associated morbidity. Therefore, it is essential to determine SSI predictive factors in order to prevent its occurrence. The aim of this study is to explore the role of neutrophil-to-lymphocyte ratio (NLR) as a predictor of SSI...

Intrathoracic ribs are rare congenital anomalies where a supra- or normonumerary rib follows an abnormal course within the thorax (1). Less than 10 cases have been reported in children, being commonly asymptomatic and usually found incidentally (2). Surgical treatment is seldom necessary due to the benign and asymptomatic presentation. However, in...

Unlabelled: Congenital hepatic hemangiomas (CHHs) are benign vascular tumors whose clinical, histological, and genetic correlation has recently been described in patients with long-term survival, although no mortality risk factors have been identified to date. The aim of this study is to analyze predictors of mortality in patients with CHH. A retr...

Introduction: Simultaneous performance of artificial urinary sphincter (AUS) placement and bladder augmentation (BA) in patients with neuropathic bladder is currently controversial. Objective: The aim of this study is to describe our very long-term results after a median follow-up of 17 years. Study design: A retrospective single-center case-c...

Early debridement of childhood burns under sedoanalgesia in the emergency department (ED) may help to reduce the need of surgery and delay in treatment. We performed a retrospective study in burned children who underwent debridement in the ED under sedoanalgesia between March 2020 and December 2020 (COVID group), and were compared with the same mon...

PurposeThere is controversy about the necessity of nighttime appendectomy. The aim of this study was to determine whether timing of appendectomy performance plays a role on postoperative complications.MethodsA retrospective single-center comparative study was performed in children who underwent surgery for acute appendicitis between 2017 and 2021....

Pulmonary metastases from hepatoblastoma (HB) have traditionally been identified by preoperative computed tomography scan image evaluation, and intraoperative visual and palpatory examinations through thoracotomy have been generally recommended. However, the safety and accuracy of surgery can be problematic in patients with small multiple lung meta...

Choledochal cysts (CDCs) are rare congenital entities characterized by biliary tract dilatation that predisposes to the development of malignant tumors, mainly cholangiocarcinoma, so even if it is asymptomatic, CDC should be excised at the time of the diagnosis. Complete cyst excision is the main factor involved in decreasing the risk of malignancy...

Resumen Introducción El índice neutrófilo-linfocito (INL) es un biomarcador inflamatorio fácilmente calculable a partir del recuento diferencial de leucocitos. El objetivo de este estudio es analizar el papel del INL en la detección de apendicetomías negativas, y comparar su utilidad con otros factores clínicos, ecográficos y de laboratorio previa...

Background: Partial onychectomy with chemical matrixectomy is considered the gold standard treatment for stage II-III ingrown toenails (IT). However, there are scarce reports describing the use of silver nitrate in IT management in adolescents. Our aim is to analyze the effectiveness of matrix ablation with silver nitrate and compare it with parti...

Background: Carboxytherapy involves injecting carbon dioxide in the dermal and subcutaneous layers to achieve an increase in the local microvascularization of the tissue where it is applied. Our aim is to analyze its effectiveness in the treatment of pathological scars, as well as its adverse effects. Methods: We conducted a prospective single-c...

Resumen Antecedentes: Aunque la onicectomía parcial con matricectomía química ha sido descrita como tratamiento de elección en los casos de uñas encarnadas en los dedos de los pies, existe escasa evidencia en la literatura en cuanto al uso de nitrato de plata para matricectomía. Nuestro objetivo es describir la efectividad del nitrato de plata para...

Background: Surgical treatment of ileo-colic intussusception (ICI) has been reported as the second cause of emergency laparotomy in children. The performance of incidental appendectomy after surgical reduction is currently controversial. The aim is to analyse the outcomes of performing incidental appendectomy after surgical ICI reduction with or w...

Purpose: There is controversy about the necessity of nighttime appendectomy. The aim of this study was to determine whether timing of appendectomy performance plays a role on postoperative complications. Methods: A retrospective single-center comparative study was performed in children who underwent surgery for acute appendicitis between 2017-2021....

Introduction The neutrophil-to-lymphocyte ratio (NLR) is an inflammatory biomarker that is easily calculated with data from the differential white blood cell count. The aim of our study was to analyse the role of the NLR in the detection of negative appendectomies and to compare its usefulness with other clinical, sonographic and laboratory factors...

Introduction Doppler ultrasound constitutes the gold standard for the diagnosis of testicular torsion (TT), although sometimes the spermatic cord twisting and absence of testicular flow are difficult to visualize. To date, no laboratory markers have been shown to be useful for preoperative TT diagnosis. Objective Our aim is to analyze the role of...

Introduction Autologous tissue transfers have been used in chest wall reconstruction for decades, with high morbidity. Recently, acellular dermal matrices (ADMs) have emerged as an alternative. The aim of this article is to report our initial experience in the reconstruction of malformative chest wall deformities with ADM. Methods A prospective obs...

Background: Neutrophil-to-lymphocyte ratio (NLR) is an emerging inflammatory marker in abdominal pathologies. Ileocolic intussusception (ICI) involves a progressive intestinal inflammation, and the effectiveness of non-surgical treatment (enema) might be related to the inflammation degree, although no previous studies have investigated this relati...

Purpose Phleboliths are often observed within Venous malformations (VM) and frequently indicated as cause of morbidity. The aim of this study is to investigate independent risk factors for phleboliths in a pediatric population and to determine if its presence influences clinical management. Methods We retrospectively review data from patients diag...

Objective: To report a 15-y, single-center experience in the management and outcomes of ileocolic intussusception (ICI) episodes. Methods: A retrospective study was performed in patients with ICI episodes, who were treated at a single quaternary referral center from 2005 to 2019. Data evaluated included patient demographics, clinical presentatio...

Resumen Antecedentes: Aunque la onicectomía parcial con matricectomía química ha sido descrita como tratamiento de elección en los casos de uñas encarnadas en los dedos de los pies, existe escasa evidencia en la literatura en cuanto al uso de nitrato de plata para matricectomía. Nuestro objetivo es describir la efectividad del nitrato de plata para...

Introduction: Infantile hemangiomas with multi-organ involvement are rare, and presentation in the form of uncontrollable bleeding is exceptional. Clinical case: 4-day-old newborn with multiple hepatocutaneous hemangiomas and a purplish vascular lesion in the third finger of the right hand. In the third week of life, the lesion became ulcerated...

Background: Residual postoperative pneumoperitoneum (RPP) can be confused with postoperative complications. Our aim was to study RPP characteristics in pediatric patients. Materials and Methods: Prospective study in children with noncomplicated appendicitis, from July to December 2019, divided into open appendectomy (OA) or laparoscopic appendectom...

Objective: Artificial urinary sphincter has been used to treat urinary incontinence in children with neuropathic bladder, although there are few studies reporting very long-term results. We assess our experience over the last 27 years in the management of artificial urinary sphincter. Methods: A retrospective study was performed in patients with...

Indocyanine green (ICG)-guided near-infrared fluorescence has been recently adopted in pediatric surgery, although its use in the treatment of congenital hyperinsulinism has not been reported. We present a case of focal congenital hyperinsulinism in which ICG-navigation with ICG was used during surgical treatment. A 3-month-old infant was referred...

Introduction Several surgical techniques for buried penis (BP) treatment have been described, although there is not a reference pattern for it. In our institution, we have traditionally performed penis fixation to Buck’s fascia at 3 points. In 2014 we introduced a dorsal dartos flap technique, fixed at both sides of the penis base. Objetive To com...

Purpose To describe the long-term outcomes of the robotic Soave pull-through (RSPT) procedure for Hirschsprung’s disease (HSCR) in children younger than 12 months. Methods A prospective observational study was conducted on HSCR patients under 12 months of age who underwent RSPT at our institution between 2011 and 2020. Data regarding demographics,...

Introduction In recent years, pain protocols for pectus excavatum (PE) have incorporated cryoanalgesia through thoracoscopic approach. Since 2019, ultrasound-guided percutaneous cryoanalgesia (PCr) has been applied at our institution, either on the same day as the Nuss procedure or 48 hours before surgery. We carried out a preliminary retrospective...

Background and objectives: Since the COVID-19 pandemic confinement was established in Spain on March 9, 2020, the number of visits to the paediatric Emergency Department (ED) has decreased dramatically, probably due to the fear of parents becoming infected in the hospital environment. The aim of this work was to analyse the medium-term consequences...

Introduction: Congenital muscular hyperplasia of the hand is a rarely described entity, characterized by the presence of aberrant or accessory muscles in the hypothenar eminence, which has been always reported as sporadic anomaly in the medical literature. The aim of this paper is to report a series of cases with a phenotype of aberrant muscle hyp...

Introduction: Since the COVID-19 pandemic confinement was established in Spain on March 9, 2020, the number of visits to the paediatric Emergency Department (ED) has decreased dramatically, probably due to the fear of parents becoming infected in the hospital environment. The aim of this work is to analyse the medium-term consequences during the fi...

Background: The term “congenital muscular hyperplasia of the hand” refers to a distinctive enlargement of the hypothenar eminence associated with ulnar deviation of the metacarpophalangic joints, macrodactyly, and enlargement of the forearm and/or the entire upper extremity. The presence of hyperplastic, aberrant or accessory muscles in the affect...

Introduction: As a result of the emergence of the SARS-CoV-2 respiratory virus in Wuhan in December 2019, the Spanish Government declared the state of emergency with restrictions such as stay-at-home lockdown. The objective of this study was to analyze emergency activity at a referral pediatric surgery unit in its territory and determine whether s...

Introduction Since home confinement for novel coronavirus disease 2019 (COVID-19) pandemic began, pediatric visits to the emergency department (ED) have decreased, including consultation for abdominal pain. Our aim is to investigate the incidence of complicated acute appendicitis (AA; peritonitis or appendicular mass) during confinement for COVID-1...

Introduction: Recurrence of ileocolic intussusception (ICI) has been related to residual bowel wall edema after enema reduction. Early oral tolerance has been associated with a higher risk of re-intussusception, so an imaging test (ultrasound) has traditionally been performed before restarting oral tolerance. Our aim is to analyze the cost-effecti...

Objective: Time to treatment initiation is a key element to be considered in infectious pathologies such as acute appendicitis (AA). There are few articles in the literature analyzing the relationship between early pre-surgical antibiotic treatment initiation and complication occurrence in AA. Our objective is to analyze such influence and the eff...

Introduction: Overweight and obesity are risk factors for the development of postsurgical complications in acute appendicitis in adults. However, there are few studies that evaluate their effects in pediatric patients. We aim to analyze their influence on the postoperative course of acute appendicitis in children. Material and methods: A prospec...

Aim of the study: Postoperative intra-abdominal abscess (PIAA) is a frequent and severe complication of acute appendicitis (AA) with peritonitis. The neutrophil-to-lymphocyte ratio (NLR) is an inflammatory marker that has been related to the development of peritonitis; however, its diagnostic role in predicting PIAA has not been evaluated. This is...

Introduction Capillary malformations (CMs) can be sporadic or syndromic, in association with other underlying venous malformation (VM) or lymphatic malformation (LM). The objective of this study is to describe the clinical patterns in the neonate that allow us to differentiate sporadic CMs from those associated with other vascular malformations. Ma...

Aim of the study: The neutrophil-to-lymphocyte ratio (NLR) has been postulated as an inflammatory marker in several abdominal pathologies such as acute appendicitis (AA). However, there are few studies that determine its association with the degree of severity of AA. This is the first study that analyzes the usefulness of NLR as a predictor of per...

Background Most patients with phosphoinositide-3-kinase, catalytic, alpha polypeptide (PIK3CA)-related overgrowth spectrum become symptomatic early in life and need treatment before puberty. Recently, the specific inhibition of PIK3CA pathways has been proposed as a therapeutic option for these patients improving their surgical options and quality...

We report a severe case of compartment syndrome due to a compressive burn dressing. An otherwise healthy 2-year-old girl presented at her local health center with a superficial partial-thickness thermal burn on the dorsum of the mid phalanx of the second finger of her right hand. A compressive dressing was applied solely to the affected finger. For...

Objective: To describe behaviors and knowledge related to sexual and reproductive health of Spanish university students and their association with the subject area studied (biomedical or not). Methods: A descriptive cross-sectional observational study conducted with 2074 students aged 18-24years from the University Complutense of Madrid in the F...