GBGerlant van Berlaer

Gerlant van Berlaer

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Previous Organizations / Institutes

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Gerlant van Berlaer has a total of 161 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    The use of the S-Caine patch is safe and feasible in children younger than three: a nonrandomised clinical trial

    by Britt Anciaux, Katrien Lanckmans, Ronald Buyl, Tom De Potter, Gerlant van Berlaer

    Effective pain control in infants and toddlers is challenging, with limited data on topical anaesthetic safety. This study evaluates the safety and feasibility of a single S-Caine patch, a eutectic 70 mg lidocaine/70 mg tetracaine mixture with heat-assisted delivery, in children under 3 years. In this nonrandomised clinical trial (2019–2024) at a single tertiary paediatric centre, 67 of 106 eligible children under 3 years (median 0.55 years [IQR, 0.13–1.09]; range 3 days–3 years; 58% male) with arterial or central venous catheters received a single S-Caine patch applied for 30 min. Primary outcomes were safety, measured by plasma lidocaine concentrations (Cmax) versus a 0.100 mg/L safety threshold, adverse events monitoring, and feasibility assessed by Likert scales. Secondary outcomes included subgroup analyses by demographic and procedural factors. Median plasma lidocaine concentrations at − 15, 15, 30, 60, 120, and 240 min were < 0.010, < 0.010, 0.018, 0.020, 0.016, and 0.013 mg/L, respectively. Median Cmax was 0.025 [0.014–0.038] mg/L, remaining well below the predefined safety threshold across all subgroups (p < 0.001). Two patients exceeded the threshold (0.270 and 0.110 mg/L) without clinical effects. Minor adverse events occurred in 49 patients (73%): exclusively transient local erythema; resolving or decreasing within 30 min. Feasibility was excellent (≥ 4/5) in 87% at application and 82% at removal. Conclusion: In this clinical trial including 67 children, the S-Caine patch was safe and feasible for use in patients under three, with plasma lidocaine concentrations well below strict clinically relevant thresholds and adverse events only occurring locally, supporting its role as a non-invasive analgesic for procedural pain. Future studies are needed to confirm safety in larger paediatric populations. Clinical Trial Registration: EU Clinical Trials Register, EudraCT Number 2019–002094-55, https://www.clinicaltrialsregister.eu/ctr-search/trial/2019-002094-55/BE. What is Known: • Procedural pain management in young children is challenging, as current options are often invasive, distressing, or carry systemic side effects. Safe, effective, and non-invasive analgesic strategies are limited, particularly for infants and toddlers undergoing common procedures. What is New: • The S-Caine patch provides a safe, non-invasive analgesic option for children under three, with plasma lidocaine levels well below strict safety thresholds and only minor transient local reactions, improving procedural comfort and reducing reliance on systemic pain interventions.

  • Open Access

    Acute Health Effects and Outcome Following Sarin Gas Attacks in Khan Shaykhun, Syria

    by Osama I Alsaleh, Abdallah M. Elsafti Elsaeidy, Saad Saeed, Abdulrahman Alhallak, Mazen A Altelawi, Gerlant Van Berlaer, Ives Hubloue

    In 2017, Idlib, Syria, was exposed to a chemical attack with sarin gas. Many patients of the attack were presented to the Al Rahman Charity Hospital in northern Syria. The aim of this study is to describe the clinical manifestations of sarin gas exposure, as well as the management and outcome of these manifestations in areas with poor healthcare infrastructure. In a case series study design, medical records of suspected sarin exposed patients were reviewed in terms of age, gender, initial clinical presentation, management, and outcome. Seventeen patients with signs of sarin gas exposure had detailed medical records. The mean age was 29.1 years with a range of 4-70 years. Six patients were male (35.3%), and four (23.5%) were children under 18 years. At initial presentation, all victims suffered from respiratory distress because of severe airway inflammation, chest pain, and ophthalmological symptoms. All patients featured varying degrees of intestinal, neurologic, and dermatological signs and symptoms. Acute symptom management consisted of oxygen (100% of patients), atropine (100%), bronchodilators (82.4%), dexamethasone (82.4%), anti-emetics (82.4%), paracetamol (47.1%), and ranitidine (41.2%). Rapid symptomatic recovery was observed in 13 patients (76.5%) who stayed in the hospital for less than 24 hours, but four patients (23.5%) had to be admitted for more than 24 hours. The median length of stay was 22.2 hours (with a range of eight to 48 hours). Two patients required intensive care. Of the studied sample, all patients survived. This study demonstrates that even in austere healthcare settings, survival rate and prognosis of sarin gas contaminated patients are fair if basic measures and symptomatic treatment are performed. The study provides insight into the clinical presentation, management, and hospital course likely to result from future sarin gas releases.


  • Open Access

    Effects of Two Chlorine Gas Attacks on Hospital Admission and Clinical Outcomes in Kafr Zita, Syria

    by Abdallah M. Elsafti Elsaeidy, Osama I Alsaleh, Gerlant van Berlaer, Abdulrahman A Alhallak, Saad S. Saeed, Ashraf Soliman, Ives Hubloue

    Background In 2014, Hama Governorate was exposed twice to chlorine gas, with 15 patients presenting to Kafr Zita Hospital in Northwest Syria. This study aimed to describe clinical manifestations of chlorine gas exposure to identify factors leading to facility admission and the need for ICU/intubation in conflict-affected areas with limited healthcare infrastructure. Methods We conducted a case-series study, using medical records of suspected chlorine-exposed patients presenting at Kafr Zita Hospital on either 11 April or 22 May 2014. Data on age, sex, initial clinical presentation, therapeutic management, and outcome were compared by hospital admission/non-admission and attack date. All patients provided verbal informed consent. Results Fifteen patients with signs of chlorine gas exposure had detailed medical records. The mean age was 25.7 years (range 2-59), eight were male (53%), and three (20%) were under age 16. At initial presentation, all experienced respiratory distress, due to severe airway inflammation confirmed by nonspecific pulmonary infiltrates on chest x-ray, and similar intestinal, neurological, dermatological, ophthalmological, and psychological signs and symptoms. Acute management consisted of oxygen and bronchodilators for all patients, hydrocortisone (93%), antiemetics (80%), and dexamethasone (13%). Seven (47%) made a rapid symptomatic recovery and were discharged the same day and eight (53%) were admitted for a median of two days (range 1-6 days), one of whom required intubation and later died. The only significant associations found were higher mean pulse rate (i.e. 138 versus 124; p 0.043) and body temperature (37.0 versus 36.5; p=0.019) among admitted patients compared to non-admitted. Conclusion Our results demonstrated that even in low-resource humanitarian settings the survival rate for chlorine gas exposed patients is fair. Despite the small sample, this study provides insight into the clinical presentation, management, and outcomes of weaponized chlorine gas exposure, though further research is required to understand any chronic consequences.


  • Open Access

    Varying Presentations of Multisystem Inflammatory Syndrome Temporarily Associated with COVID-19

    by Jasmina Krikilion, Lisa Nuyttens, Siel Daelemans, Karlien François, Reiner Mauel, Daniel De Wolf, Gerlant van Berlaer

    Background. A novel coronavirus identified in 2019 leads to a pandemic of severe acute respiratory distress syndrome with important morbidity and mortality. Initially, children seemed minimally affected, but there were reports of cases similar to (atypical) Kawasaki disease or toxic shock syndrome, and evidence emerges about a complication named paediatric inflammatory multisystem syndrome temporarily associated with SARS-CoV-2 (PIMS-TS) or multisystem inflammatory syndrome in children (MIS-C). Case Presentations. Two cases were compared and discussed demonstrating varying presentations, management, and evolution of MIS-C. These cases are presented to increase awareness and familiarity among paediatricians and emergency physicians with the different clinical manifestations of this syndrome. Discussion. MIS-C may occur with possible diverse clinical presentations. Early recognition and treatment are paramount for a beneficial outcome.


  • Open Access

    Diagnosing enterovirus meningitis via blood transcriptomics: an alternative for lumbar puncture?

    by Esther Bartholomeus, Nicolas De Neuter, Annelies Lemay, Luc Pattyn, David Tuerlinckx, David Weynants, Koen Van Lede, Gerlant van Berlaer, Dominique Bulckaert, Tine Boiy, et al.

    Meningitis can be caused by several viruses and bacteria. Identifying the causative pathogen as quickly as possible is crucial to initiate the most optimal therapy, as acute bacterial meningitis is associated with a significant morbidity and mortality. Bacterial meningitis requires antibiotics, as opposed to enteroviral meningitis, which only requires supportive therapy. Clinical presentation is usually not sufficient to differentiate between viral and bacterial meningitis, thereby necessitating cerebrospinal fluid (CSF) analysis by PCR and/or time-consuming bacterial cultures. However, collecting CSF in children is not always feasible and a rather invasive procedure. In 12 Belgian hospitals, we obtained acute blood samples from children with signs of meningitis (49 viral and 7 bacterial cases) (aged between 3 months and 16 years). After pathogen confirmation on CSF, the patient was asked to give a convalescent sample after recovery. 3′ mRNA sequencing was performed to determine differentially expressed genes (DEGs) to create a host transcriptomic profile. Enteroviral meningitis cases displayed the largest upregulated fold change enrichment in type I interferon production, response and signaling pathways. Patients with bacterial meningitis showed a significant upregulation of genes related to macrophage and neutrophil activation. We found several significantly DEGs between enteroviral and bacterial meningitis. Random forest classification showed that we were able to differentiate enteroviral from bacterial meningitis with an AUC of 0.982 on held-out samples. Enteroviral meningitis has an innate immunity signature with type 1 interferons as key players. Our classifier, based on blood host transcriptomic profiles of different meningitis cases, is a possible strong alternative for diagnosing enteroviral meningitis.


  • Open Access

    Clinical Characteristics of the 2013 Haiyan Typhoon Victims Presenting to the Belgian First Aid and Support Team

    by Gerlant van Berlaer, Frank de Jong, Timothy Das, Carlos Primero Gundran, Matthijs Samyn, Geert Gijs, Ronald Buyl, Michel Debacker, Ives Hubloue

    Objective: In 2013, the Philippines was struck by typhoon Haiyan, which damaged local hospitals and disrupted health care. The Belgian First Aid and Support Team erected a field hospital and water purification unit in Palo. This study aims to describe the diagnoses encountered and treatment provided.Methods: In this cross-sectional study, medical records of 1267 field hospital patients were reviewed for gender, age, complaints, diagnoses, and management and referral information.Results: Almost 28% of the patients suffered from injury, but most presented with nonsurgical diseases (64%), particularly of respiratory (31%), dermatological (11%), and digestive (8%) origin. Only 53% presented with disaster-related pathology, and 59% showed signs of infection. Patients needed wound care (47%), pain relief (33%), or antibiotics (29%); 9% needed procedures, 8% needed fluid therapy, and 5% needed psychological support. Children under 5 years of age were more at risk for infections (OR, 18.8; CI, 10.6-33.3) and injuries (OR, 10.3; CI, 6.3-16.8). Males were more prone to injuries than females (OR, 2.1; CI, 1.6-2.6).Conclusions: One week after the acute phase of a typhoon, respiratory, dermatological, and digestive problems emerge to the prejudice of trauma. Only 53% of patients presented with disaster-related conditions. Young children are more at risk for injury and infectious diseases. These trends should be anticipated when composing Emergency Medical Teams and medical resources to be sent to disaster sites. (Disaster Med Public Health Preparedness. 2019;13:265-278)


  • Open Access

    Disaster preparedness and response improvement: comparison of the 2010 Haiti earthquake-related diagnoses with baseline medical data

    by Gerlant van Berlaer, Tom Staes, Dirk Danschutter, Ronald Ackermans, Stefano Zannini, Gabriele Rossi, Ronald Buyl, Geert Gijs, Michel Debacker, Ives Hubloue

    Disaster medicine research generally lacks control groups. This study aims to describe categories of diagnoses encountered by the Belgian First Aid and Support Team after the 2010 Haiti earthquake and extract earthquake-related changes from comparison with comparable baseline data. The hypothesis is that besides earthquake-related trauma, medical problems emerge soon, questioning an appropriate composition of Foreign Medical Teams and Interagency Emergency Health Kits. Using a descriptive cohort study design, diagnoses of patients presenting to the Belgian field hospital were prospectively registered during 4 weeks after the earthquake and compared with those recorded similarly by Médecins Sans Frontières in the same area and time span in previous and later years. Of 7000 triaged postearthquake patients, 3500 were admitted, of whom 2795 were included and analysed. In the fortnight after the earthquake, 90% suffered from injury. In the following fortnight, medical diseases emerged, particularly respiratory (23%) and digestive (14%). More than 53% developed infections within 3 weeks after the event. Médecins Sans Frontières registered 6407 patients in 2009; 6033 in 2011; and 7300 in 2012. A comparison indicates that postearthquake patients suffered significantly less from violence, but more from wounds, respiratory, digestive and ophthalmological diseases. This is the first comparison of postearthquake diagnoses with baseline data. Within 2 weeks after the acute phase of an earthquake, respiratory, digestive and ophthalmological problems will emerge to the prejudice of trauma. This fact should be anticipated when composing Foreign Medical Teams and Interagency Emergency Health Kits to be sent to the disaster site. This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially. http://creativecommons.org/licenses/by-nc-nd/4.0/


  • Open Access

    Diagnoses, infections and injuries in Northern Syrian children during the civil war: A cross-sectional study

    by Gerlant van Berlaer, Abdallah Mohamed Elsafti, Mohammad Al Safadi, Saad Souhil Saeed, Ronald Buyl, Michel Debacker, Atef Redwan, Ives Hubloue

    The civil war in Syria including the deliberate targeting of healthcare services resulted in a complex humanitarian emergency, seriously affecting children's health. The objectives of this study are to document diagnoses and disease categories in Northern Syrian children after four years of conflict, and to document infectious diseases and injuries in this vulnerable population. In a prospective cross-sectional observational sample study conducted in May 2015, healthcare workers registered demographics, comorbidities, and diagnoses (categorised according to the International Classification of Diseases version 10) in children visited at home and in internally displaced persons camps in four Syrian governorates. Of 1080 filled-out records, 1002 were included. Children originated from Aleppo (41%), Idleb (36%), Hamah (15%) and Lattakia (8%). Median age was 6 years (0–15; IQR 3–11), 61% were boys, 40% were younger than 5 years old. Children suffered from respiratory (29%), neurological (19%), digestive (17%), eye (5%) and skin (5%) diseases. Clinical malnutrition was seen in 4%, accidental injury in 3%, intentional injury in 1%, and mental disorders in 2%. Overall, 64% had features of infectious diseases (OR 0.635; CI 0.605–0.665). Most common comorbidities were chronic respiratory diseases (14, malnutrition (5%), acute flaccid paralysis (5%), and epilepsy (4%). Logistic regression analysis indicated that the risk for children to have communicable diseases was higher in Aleppo than in Idleb (OR 1.7; CI 1.2–2.3), Hamah (OR 4.9; CI 3.3–7.5), or Lattakia (OR 5.5; CI 3.3–9.3). Children in Aleppo and Lattakia were more at risk to be injured than in Idleb (OR 5.6; CI 2.1–14.3), or in Hamah (OR 5.9; CI 1.4–25.6), but more often from intentional violence in Lattakia. Mental problems were more prominent in Hamah. Four years far in the conflict, 64% of the studied children in four Northern Syrian governorates suffer from infections, mostly from respiratory, neurological and digestive origin, while 4% was injured or victim of intentional aggression. Substandard living conditions and the lack of paediatric healthcare put Syrian children at risk for serious infections, epidemics and morbidity, and ask for urgent international humanitarian relief efforts.


  • Open Access

    A refugee camp in the centre of Europe: clinical characteristics of asylum seekers arriving in Brussels

    by Gerlant van Berlaer, Francisca Bohle Carbonell, Sofie Manantsoa, Xavier de Béthune, Ronald Buyl, Michel Debacker, Ives Hubloue

    Background In the summer of 2015, the exodus of Syrian war refugees and saturation of refugee camps in neighbouring countries led to the influx of asylum-seekers in European countries, including Belgium. This study aims to describe the demographic and clinical characteristics of asylum seekers who arrived in a huddled refugee camp, in the centre of a well-developed country with all medical facilities. Methods Using a descriptive cross-sectional study design, physicians of Médecins du Monde prospectively registered age, gender, origin, medical symptoms and diagnoses of all patients presenting to an erected field hospital in Brussels in September 2015. Diagnoses were post hoc categorised according to the International Classification of Diseases. Results Of 4037 patients examined in the field hospital, 3907 were included and analysed for this study. Over 11% of patients suffered from injuries, but these were outnumbered by the proportion of patients with respiratory (36%), dental (9%), skin (9%) and digestive (8%) diagnoses. More than 49% had features of infections at the time of the consultation. Conclusions Asylum seekers arriving in a refugee camp in Brussels after a long and hazardous journey suffer mostly from respiratory, dental, skin and digestive diseases. Still, one in seven suffers from injury. These findings, consistent with other reports, should be anticipated when composing emergency medical teams and interagency emergency health or similar kits to be used in a field hospital, even in a Western European country. Trial registration number ISRCTN13523620, Results.


  • Open Access

    Children in the Syrian Civil War: the Familial, Educational, and Public Health Impact of Ongoing Violence

    by Abdallah Mohamed Elsafti, Gerlant van Berlaer, Mohammad Al Safadi, Michel Debacker, Ronald Buyl, Atef Redwan, Ives Hubloue

    Objective: The Syrian civil war since 2011 has led to one of the most complex humanitarian emergencies in history. The objective of this study was to document the impact of the conflict on the familial, educational, and public health state of Syrian children.Methods: A cross-sectional observational study was conducted in May 2015. Health care workers visited families with a prospectively designed data sheet in 4 Northern Syrian governorates.Results: The 1001 children included in this study originated from Aleppo (41%), Idleb (36%), Hamah (15%), and Lattakia (8%). The children’s median age was 6 years (range, 0-15 years; interquartile range, 3-11 years), and 61% were boys. Almost 20% of the children were internally displaced, and 5% had deceased or missing parents. Children lacked access to safe drinking water (15%), appropriate sanitation (23%), healthy nutrition (16%), and pediatric health care providers (64%). Vaccination was inadequate in 72%. More than half of school-aged children had no access to education. Children in Idleb and Lattakia were at greater risk of having unmet public health needs. Younger children were at greater risk of having an incomplete vaccination state.Conclusions: After 4 years of civil war in Syria, children have lost parents, live in substandard life quality circumstances, and are at risk for outbreaks because of worsening vaccination states and insufficient availability of health care providers. (Disaster Med Public Health Preparedness. 2016;10:874–882)