47 results on '"Itai, Gross"'
Search Results
2. The use of bacterial DNA from saliva for the detection of GAS pharyngitis
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Saar Hashavya, Naama Pines, Ayelet Gayego, Avi Schechter, Itai Gross, and Alon Moses
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streptococcus group a ,pharyngitis ,tonsillitis ,throat swab ,pcr ,saliva ,Infectious and parasitic diseases ,RC109-216 ,Microbiology ,QR1-502 - Abstract
Background Acute tonsillitis is a very common medical condition. Despite different methods of detection, all tests are based on GAS sampling using a throat swab. However, obtaining the swab can elicit vomiting and is often accompanied by fear and apprehension in children. The aim of this study was to find a non-invasive method for the detection of GAS pharyngitis. Methods A classic throat swab was obtained for culture, and a saliva sample was taken from 100 subjects recruited from Meuhedet Health Care Organization clinic. Real time PCR was performed to detect GAS dnaseB specific gene in the saliva samples. Results 56% of the throat cultures and 48% of the PCR samples were positive for GAS. The overall sensitivity and specificity of the saliva PCR method was 79% and 91% respectively; NPV and PPV were 77% and 92% respectively. When excluding patients who presented on the first day of fever, sensitivity and specificity increased to 90% and 100% respectively. No other anamnestic or clinical findings increased the yield of the test. Conclusion Saliva-based PCR amplification of GAS DNA method is effective in detection of GAS pharyngitis. Further studies are needed to achieve detection rates to replace the traditional throat swab-based approach.
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- 2020
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3. The yield of ophthalmoscopy as a screening tool for intracranial pathology in pediatric headache
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Rawan Azzam, Kawar, Itai, Gross, Yael, Biro, Noa, Guzner, Moriah, Peyser-Rosenberg, Shira, Azulai, Hadas, Mechulam, Tal, Gilboa, Hodaya, Cohen, and Saar, Hashavya
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Pediatrics, Perinatology and Child Health - Abstract
Headache is a common complaint in children who present at the pediatric emergency department (PED). Serious conditions such as intracranial tumors and idiopathic intracranial hypertension (IIH) should be rapidly ruled out. Ophthalmoscopy for the presence of papilledema has long been considered critical to the assessment of headaches in children; however, the yield of this procedure is poorly validated. This retrospective study implemented a computerized search of the medical records of a single tertiary center to identify all children aged 2-18 years who presented at the PED complaining of headache between 2007 and 2017. The clinical, demographic, radiographic, and laboratory data were analyzed. Of the 948 children aged 2-18 years who presented at the PED complaining of headache, 536 had an ophthalmoscopy examination carried out by an ophthalmologist. Forty-one had papilledema, of whom 7 had an intracranial tumor, 15 had IIH, and 9 had optic nerve head drusen. Of the 495 children without papilledema, 3 had intracranial tumor, and 11 had IIH. The sensitivity and specificity of papilledema for the diagnosis of intracranial tumor were 70% and 93.5%, respectively, with an NPV and PPV of 99.4% and 17.1%, respectively. The sensitivity and specificity of papilledema for the diagnosis of intracranial pathology in general were 61.1% and 96.2%, respectively, with an NPV and PPV of 97.2% and 53.7%, respectively. Conclusion: Assessment by ophthalmoscopy for papilledema in children presenting to the PED with headache had high sensitivity and high specificity, thus reinforcing the importance of ophthalmoscopy as a screening tool in these children. What is Known: • Headache is a common complaint in children. Serious intracranial pathologies need to be rapidly excluded. • Ophthalmoscopy for the presence of papilledema is commonly used as a screening tool for intracranial pathology, but this procedure is poorly validated. What is New: • Ophthalmoscopy for the assessment of papilledema in children who present with headache to the pediatric emergency department is shown to exhibit sensitivity and specificity for the diagnosis of intracranial pathology.
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- 2022
4. Orthotic hip brace as an alternative for treatment of femoral fractures in children under the age of 3 years: a retrospective study
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Itai, Gross, Saar, Hashavya, Sonia, Rogachev, Naum, Simanovsky, Tareq, Shrabaty, Michael, Zaidman, and Vladimir, Goldman
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Pediatrics, Perinatology and Child Health ,Orthopedics and Sports Medicine - Abstract
Femoral fractures are among the most common reasons for orthopedic-related hospital admissions in children. While spica cast is recommended for most children younger than 5 years, in the last decades, Pavlik harness was proven to be a safe alternative for young children. The objective is to assess the safety, outcomes and complications of a hip abduction brace (HAB) for the treatment of femoral fractures in children under the age of 3 years. This 7-year retrospective study was conducted in a single tertiary hospital. Children aged 6-36 months diagnosed with a femoral fracture, which did not necessitate operative treatment, were included. HAB has been used as the treatment of choice for nondisplaced or minimally displaced fractures of the proximal femur as well as for both displaced and nondisplaced femoral shaft fractures. The database was composed of a total of 102 children under the age of 3 with femoral fractures. Twenty-nine (28.4%) patients were treated with HAB and the others with a spica cast. The average age (±SD) at presentation was 21.5 ± 6.1 months. The length of stay was 0.96 ± 1 day. The complication rate was 6.9%. A satisfactory outcome in terms of fracture alignment and union was reported in 100% of the patients treated with HAB. When compared with patients treated with a spica cast, the HAB group were younger, had less severe injuries, shorter lengths of stay, lower complication rates and no need for surgical intervention. HAB can be considered a safe and comfortable alternative in selected children aged 6-36 months with nondisplaced/mildly displaced proximal and diaphyseal femoral fractures.
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- 2022
5. Targeting the endocannabinoid/CB1 receptor system for treating obesity in Prader–Willi syndrome
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Ibrahim Knani, Brian J. Earley, Shiran Udi, Alina Nemirovski, Rivka Hadar, Asaad Gammal, Resat Cinar, Harry J. Hirsch, Yehuda Pollak, Itai Gross, Talia Eldar-Geva, Daniela P. Reyes-Capo, Joan C. Han, Andrea M. Haqq, Varda Gross-Tsur, Rachel Wevrick, and Joseph Tam
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Internal medicine ,RC31-1245 - Abstract
Objective: Extreme obesity is a core phenotypic feature of Prader–Willi syndrome (PWS). Among numerous metabolic regulators, the endocannabinoid (eCB) system is critically involved in controlling feeding, body weight, and energy metabolism, and a globally acting cannabinoid-1 receptor (CB1R) blockade reverses obesity both in animals and humans. The first-in-class CB1R antagonist rimonabant proved effective in inducing weight loss in adults with PWS. However, it is no longer available for clinical use because of its centrally mediated, neuropsychiatric, adverse effects. Methods: We studied eCB ‘tone’ in individuals with PWS and in the Magel2-null mouse model that recapitulates the major metabolic phenotypes of PWS and determined the efficacy of a peripherally restricted CB1R antagonist, JD5037 in treating obesity in these mice. Results: Individuals with PWS had elevated circulating levels of 2-arachidonoylglycerol and its endogenous precursor and breakdown ligand, arachidonic acid. Increased hypothalamic eCB ‘tone’, manifested by increased eCBs and upregulated CB1R, was associated with increased fat mass, reduced energy expenditure, and decreased voluntary activity in Magel2-null mice. Daily chronic treatment of obese Magel2-null mice and their littermate wild-type controls with JD5037 (3 mg/kg/d for 28 days) reduced body weight, reversed hyperphagia, and improved metabolic parameters related to their obese phenotype. Conclusions: Dysregulation of the eCB/CB1R system may contribute to hyperphagia and obesity in Magel2-null mice and in individuals with PWS. Our results demonstrate that treatment with peripherally restricted CB1R antagonists may be an effective strategy for the management of severe obesity in PWS. Author Video: Author Video Watch what authors say about their articles Keywords: Endocannabinoids, PWS, Magel2, Peripheral CB1 blockade, Metabolic syndrome
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- 2016
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6. Severe Acute Respiratory Syndrome Coronavirus 2 in Infants Younger Than 90 Days Presenting to the Pediatric Emergency Department
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Talia Benenson-Weinberg, Itai Gross, Zeev Bamberger, Noa Guzner, Dana Wolf, Oren Gordon, Ahmad Nama, and Saar Hashavya
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Pediatrics, Perinatology and Child Health ,Emergency Medicine ,General Medicine - Published
- 2023
7. Changes in pediatric major trauma epidemiology, injury patterns, and outcome during COVID-19–associated lockdown
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Naama Pines, Miklosh Bala, Itai Gross, Lea Ohana-Sarna-Cahan, Ruth Shpigel, Ahmad Nama, Kedar Asaf, Moriah P Rosenberg Bsc, and Saar Hashavya
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medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,business.industry ,Major trauma ,Psychological intervention ,Retrospective cohort study ,Emergency department ,Critical Care and Intensive Care Medicine ,medicine.disease ,Epidemiology ,Emergency medicine ,Pandemic ,Emergency Medicine ,medicine ,Surgery ,business ,Pediatric trauma - Abstract
Introduction The COVID-19 pandemic and its associated preventive measures such as national and regional lockdowns have dramatically changed the epidemiology of pediatric admissions to the emergency department. Nevertheless, there are scant data on the epidemiology and injury patterns of major pediatric trauma injuries during these lockdown periods. Methods A single-center retrospective study of data obtained from a tertiary level 1 trauma hospital trauma registry. The data included demographics, injury mechanisms, injury severity and type, treatment, and resource utilization in children aged 0–18 years who required trauma team activation upon arrival. The analysis compares the data from the 5-week lockdown period from March to May 2020 in Jerusalem, Israel, to its parallel periods in 2018–2019. Results A total of 187 trauma visits that required trauma team activation (TTA) were analyzed: 48 visits during the lockdown period vs. 139 in 2018–2019, corresponding to a 40% drop in TTA. There was a significant decrease of 34% in MVA-related injuries ( p = 0.0001) but a significant increase of 14% in burns ( p = 0.01) and a 16% increase in bicycle-related injuries ( p = 0.001). No changes in ISS, injury patterns, admission rate, PICU utilization, or need for interventions were observed. Conclusion There was a significant decrease in the number of overall pediatric trauma visits during the 2020 lockdown, mainly in MVA-associated trauma, but an increase in burns and bicycle injuries. These findings can thus inform policy makers as to the need to formulate prevention awareness programs alerting the public to indoor hazards and the dangers of activities outside the home. Furthermore, it can inform hospital policy decision-making in future lockdowns. The fact that PICU admissions and the need for operating rooms stayed unchanged suggests that it is vital to maintain trauma team capabilities even during lockdowns.
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- 2021
8. Parents' Adherence to Follow-up Testing Instructions Following Hospital Discharge
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Itai Gross, Lina Berkun, Dema Egbaria, Saar Hashavya, and Shimon Rief
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Pediatrics, Perinatology and Child Health - Abstract
The adherence to follow-up testing instructions post-hospitalization is influenced by a variety of factors. Our aim was to assess the parental adherence to follow-up instructions and identify the factors that influence it. Parents of 200 children were asked about their adherence with these instructions; responses were obtained from 184 of 200. Parents did not adhere in 20 of 194 (10.9%) of cases. Families of infants under 12 months and children older than 10 years had lower adherence rates. Test completion was more frequent for children discharged with a test appointment compared with those discharged without an appointment (96% vs 86.6%; P = .07). The main reasons for non-adherence were disagreement as to the value of the testing (45%) or parental misunderstanding (30%). In conclusion, in order to increase adherence with post-hospitalization follow-up testing, physicians should focus on explaining the need and importance of the test and schedule an appointment prior to discharge.
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- 2022
9. Audit of ultrasound usage in emergency departments in greater metropolitan Brisbane
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Joanna Manton, Itai Gross, and Volha Pankevich
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business.industry ,education ,Ultrasound ,030208 emergency & critical care medicine ,Qualified Person ,Audit ,medicine.disease ,Metropolitan area ,Venous access ,Officer ,03 medical and health sciences ,Cross-Sectional Studies ,0302 clinical medicine ,Informed consent ,Physicians ,Emergency Medicine ,medicine ,Humans ,Senior house officer ,030212 general & internal medicine ,Medical emergency ,Emergency Service, Hospital ,business ,Ultrasonography - Abstract
Objective The Australasian College for Emergency Medicine identifies five ultrasound applications which the College deem core to the practice of emergency medicine but there is scant information as to the uptake of ultrasound or the qualification of users. This study aims to determine the percentage of ED physicians in one metropolitan area who utilise ultrasound for core diagnostic and procedural applications in participating hospitals and the percentage of users who have been formally assessed in any ultrasound application. Methods The EDs of eight major public hospitals in greater metropolitan Brisbane area participated in this audit. Data-collectors at each participating ED approached every senior house officer, registrar and senior medical officer in the department and, after obtaining informed consent, asked the participant six questions pertaining to their use of ultrasound for five core applications and about ultrasound training and recorded the answers without information as to the identity of the participant. Results 94.4% of the physicians participated. Of those participating, 90% used ultrasound for venous access, with progressively fewer using E-FAST (69%), AAA (51%), Lung (40%) and BELS (29%) for diagnostic purposes. Ninety-eight percent of participants were in favour of enhanced departmental training. Only 33% of participants had their ultrasound skills assessed by a qualified person for even one application. Conclusion While use of ultrasound in some applications is widespread, few users have had their skills assessed. Assessment being a routine part of structured training, it cannot be assumed that these users can competently use ultrasound for procedural or diagnostic applications.
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- 2021
10. Serious Bacterial Infections in Preterm Infants: Should Their Age Be 'Corrected'?
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Mohamad Hadhud, Itai Gross, Noa Hurvitz, Lea Ohana Sarna Cahan, Zivanit Ergaz, Giora Weiser, Noa Ofek Shlomai, Smadar Eventov Friedman, and Saar Hashavya
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General Medicine - Abstract
Adjusting the chronological age of preterm infants according to their gestational age is a widely accepted practice in the field of neurodevelopment. It has been suggested for the assessment of preterm infants with suspected infection, but has been poorly validated. Correcting for chronological age is especially critical in infants with a chronological age above 3 months, but a corrected age below 3 months due to the differences in assessment protocols. This study assessed the difference in incidence of serious bacterial infection (SBI) according to chronological and corrected age in preterm infants. A retrospective analysis of pediatric emergency department (PED) presentations was conducted for all 448 preterm infants born in between January 2010 and August 2019. Of the 448 preterm infants, 204 (46%) presented at one of 3 PEDs in Jerusalem, Israel, during their first year of life. Overall, 141 (31.4%) presented with fever and were included in the study. The infants were divided into 3 age groups: 1—corrected age >3 months; 2—chronological age >3 months, but corrected age
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- 2023
11. Tickborne Relapsing Fever, Jerusalem, Israel, 2004–2018
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Orli Megged, Giora Weiser, Violeta Temper, Matan Gross, Itai Gross, Noa Hurvitz, and Saar Hashavya
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Adult ,Microbiology (medical) ,medicine.medical_specialty ,Fever ,relapsing fever ,Epidemiology ,vector-borne infections ,030231 tropical medicine ,lcsh:Medicine ,ticks ,lcsh:Infectious and parasitic diseases ,Tickborne Relapsing Fever, Jerusalem, Israel, 2004–2018 ,03 medical and health sciences ,0302 clinical medicine ,children ,Borrelia ,Internal medicine ,adults ,medicine ,Humans ,lcsh:RC109-216 ,spirochetes ,030212 general & internal medicine ,Israel ,Child ,bacteria ,biology ,Adult patients ,business.industry ,Medical record ,lcsh:R ,Dispatch ,tickborne relapsing fever ,borreliosis ,biology.organism_classification ,medicine.disease ,Infectious Diseases ,business - Abstract
To compare tickborne relapsing fever (TBRF) in children and adults in Jerusalem, Israel, we collected data from the medical records of all 92 patients with TBRF during 2004–2018. The 30 children with TBRF had more episodes of fever and lower inflammatory markers than adult patients.
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- 2020
12. Pediatricians as Case Managers Reduce the Exposure to Computerized Tomography in Children Experiencing Minor Head Trauma
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Yuri Fishman, David Rekhtman, Itai Gross, Menachem Benifla, Ariel Tenenbaum, and Saar Hashavya
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Male ,Pediatrics ,medicine.medical_specialty ,Adolescent ,Traumatic brain injury ,Computed tomography ,Single Center ,Head trauma ,Pediatric emergency medicine ,medicine ,Craniocerebral Trauma ,Humans ,Pediatricians ,Child ,Retrospective Studies ,Case Managers ,medicine.diagnostic_test ,business.industry ,Infant, Newborn ,Infant ,Case manager ,General Medicine ,medicine.disease ,Minor head trauma ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Emergency Medicine ,CRITERION STANDARD ,Emergency Service, Hospital ,Tomography, X-Ray Computed ,business - Abstract
Head trauma is one of the most common reasons for pediatric emergency medicine department (PED) visits. Computerized tomography (CT) scan is considered the criterion standard for the diagnosis of traumatic brain injury but was shown to increases the risk of malignancies.We retrospectively analyzed collected data of all children (ages 0-16 years) experiencing mild head trauma who were admitted to a single center, from January 1, 2010, to December 31, 2015. Comparison between patients treated by pediatricians/pediatric emergency medicine physicians (PEMP) with those treated by surgeons regarding CT rates and prognosis was done.During the previously mentioned period, 4232 children presented to the PED after minor head trauma, the average age was 5.4 (±4) years and 67.1% were male. Head CT was done in 7.7%, of which 30.7% had positive findings. Younger children tended to have higher percentage of positive findings on CT scan (60%, 43.8%, 26.6%, P = 0.003, for children up to 5 months, 5-24 months, and older than 24 months, respectively). Pediatricians ordered less CT scans when compared with surgeons (5.4% vs 8.5%, P0.001). Moreover, they had higher rates of positive findings on CT scan (52.5% vs 25.8%, P0.001). When all other characteristics were similar, if the case manager was a pediatrician, the patient's chances to undergo a CT scan were 4.3 times lower than if the case manager was a surgeon (odds ratio, 4.277; confidence interval, 2.274-7.104). No difference in readmissions or other complications were found between the 2 groups.This study highlights that when the case manager of children with minor head trauma is a pediatrician/PEMP, CT scan rates and thus exposure to radiation are diminished without a failure to detect clinically important traumatic brain injury.In conclusion, our findings suggest that when possible, all children experiencing minor head trauma should be treated by a pediatrician/PEMP in the PED.
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- 2020
13. Arum palaestinum poisoning: revenge of the witch
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Yaakov Asaf, Saar Hashavya, Itai Gross, Aus Maree, and Yedidia Bentur
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Male ,medicine.medical_specialty ,Poison Control Centers ,Adolescent ,Arum ,Poison control ,Asymptomatic ,Drooling ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Epidemiology ,Humans ,Medicine ,030212 general & internal medicine ,Israel ,Child ,Retrospective Studies ,Arum palaestinum ,biology ,business.industry ,Poisoning ,Infant ,Emergency department ,biology.organism_classification ,Dermatology ,Europe ,Plant Poisoning ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Female ,medicine.symptom ,business - Abstract
The Arum palaestinum plant is one of the 26 species of the Arum genus of the Araceae family. This plant species is found through the Mediterranean region, Western Asia, and Europe. The leaves and seeds of the plant contain needle-shaped oxalate crystals that can irritate the affected tissue (skin, oral cavity, or GI tract) upon exposure. Up to this date, there is no available literature supporting the epidemiology or the clinical manifestations of poisoning by this plant. We retrospectively reviewed all Arum palaestinum exposures to children younger than 18 years of age reported to the Israel National Poison Information Center during 2017 from the IPIC computerized data system. We extracted demographic data and clinical data from those digital files. We reviewed the files of 53 patients' files and found slight male predominance (58% vs. 42%), and the age of exposure ranged from 9 month to 15 years. The main site of exposure was at home in most cases (47%) followed by outdoor exposure in 40% of the cases. In 66% of the cases, minor clinical manifestations were reported, mainly erythema and mouth irritation, agitation, and drooling. Asymptomatic patients composed 34% of the cases. In 17% of the cases, patients were recommended to visit an ambulatory facility, and other 15% of the cases were referred to the emergency department. There were no cases of severe poisoning, upper airways compromise, or death.Conclusion: Poisoning by Arum palaestinum is one of the most common pediatric plant poisoning in Israel. Our study supports with clinical data for the first time that this poisoning is self-limited, confined to the affected mucosa, and most likely does not necessitate any intervention. What is Known • A. palaestinum poisoning is one of the most common pediatric plant poisoning in Israel. • The leaves and seeds of the plant contain needle-shaped oxalates crystals. What is New • Pediatric exposure to A. palaestinum usually causes only mild and self-limited poisoning. • Expectant observation is the preferred management of such exposure.
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- 2020
14. Factors Associated With Increased Risk of Pediatric Orbital Cellulitis—Who Should Be Scanned?
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Noa Hurvitz, Itai Gross, Lea Ohana-Sarna-Cahan, Adi Cohen, and Saar Hashavya
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medicine.medical_specialty ,Physical examination ,Computed tomography ,Blood Sedimentation ,Gastroenterology ,Leukocyte Count ,Internal medicine ,medicine ,Humans ,Child ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Mean age ,General Medicine ,Orbital Cellulitis ,medicine.disease ,C-Reactive Protein ,Upper respiratory tract infection ,Increased risk ,Child, Preschool ,Erythrocyte sedimentation rate ,Pediatrics, Perinatology and Child Health ,Emergency Medicine ,Absolute neutrophil count ,Orbital cellulitis ,business - Abstract
Background Evaluation of a child with POC/OC is complicated due difficulties in physical examination and risks of imaging by computed tomography. Method Retrospective review of children 0-16 years admitted to the pediatric emergency department for POC/OC from 2009 to 2019. Results Ten years study period, 243 children younger than 16 years presented to the pediatric emergency department with a diagnosis of POC/OC. OC was documented in 51 (20.6%) patients. The mean age was 7.8 years (±4.3 years). Fever (80.4%), upper respiratory tract infection (43%), swelling of both eyelids (96%), proptosis (33.3%), and tenderness on percussion (24.5%) were more common in comparison to POC (P = 0.0001, 0.03, 0.0001, 0.0001, 0.0001 respectively). All children with suspected diagnosis of OC underwent computed tomography scan. POC accounted for 196 patients. Mean age was 4.6 (±4.3) years. Twenty percent of the cases were recorded as local trauma or insect bite in the infected eye.Mean leukocyte count in the OC group had higher mean of 15.2 (10/L) versus 13.4(10/L) (P = 0.05), absolute neutrophil count was significantly higher in the OC 11.3(10/L) versus 7.2(10/L) (P = 0.0001) whereas the lymphocyte count was higher in the POC 4.5(10/L) versus 2.4(10/L) (P = 0.0001), NLR of 0.318 correlates with orbital cellulitis with sensitivity of 75.5% and specificity of 77.4%.Patients with OC had mean C-reactive protein levels of 11.7 (mg/dL) versus 4.9(mg/dL) (P = 0.0001), erythrocyte sedimentation rate was elevated in the OC 53.6 (cm/h) versus 36.4 (cm/h) (P = 0.02).Based on the aforementioned study a risk calculator for OC was formulated with 6 major variables. Conclusions Differentiation between POC/OC is cardinal. This study highlights the importance of ancillary laboratory tests especially C-reactive protein in the assessment of infections of the eye.
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- 2020
15. Bronchiolitis Due to RSV and HMPV—Epidemiology, Clinical Course, and Prognosis: Experience of a Single Tertiary Center
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Bar Azar, Saar Hashavya, Lea Ohana Sarna Cahan, Shimon Reif, and Itai Gross
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Pediatrics, Perinatology and Child Health - Abstract
Acute bronchiolitis is a leading cause of hospitalization in infants. In this retrospective study, 645 patients with acute bronchiolitis diagnosed as respiratory syncytial virus (RSV; n = 538) or human metapneumovirus (HMPV; n = 107) were compared in terms of demographic, clinical, and laboratory findings. The HMPV patients presented later in the winter, were older (20 vs 7.55 months; P < .001)), had higher levels of C-reactive protein (4.55 vs 3.03 mg/dL; P = .007), and a higher prevalence of complications (43.9% vs 32.7%; P = .03). This study highlights the similarities and differences between these 2 common respiratory viral pathogens and shows that HMPV has a slightly more severe disease course than RSV. These findings can help guide approaches to these 2 common viruses that cause bronchiolitis.
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- 2023
16. Irisin and the Metabolic Phenotype of Adults with Prader-Willi Syndrome.
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Harry J Hirsch, Itai Gross, Yehuda Pollak, Talia Eldar-Geva, and Varda Gross-Tsur
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Medicine ,Science - Abstract
Hyperphagia, low resting energy expenditure, and abnormal body composition contribute to severe obesity in Prader Willi syndrome (PWS). Irisin, a circulating myokine, stimulates "browning" of white adipose tissue resulting in increased energy expenditure and improved insulin sensitivity. Irisin has not been previously studied in PWS.Compare plasma and salivary irisin in PWS adults and normal controls. Examine the relationship of irisin to insulin sensitivity and plasma lipids.A fasting blood sample for glucose, lipids, insulin, leptin, adinopectin, and irisin was obtained from 22 PWS adults and 54 healthy BMI-matched volunteers. Saliva was collected for irisin assay in PWS and controls.Fasting glucose (77 ± 9 vs 83 ± 7 mg/dl, p = 0.004), insulin (4.1 ± 2.0 vs 7.9 ± 4.7 μU/ml, p
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- 2015
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17. Staphylococcus aureus Bacteremia in Children: Antibiotic Resistance and Mortality
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Dan Engelhard, Dina Averbuch, Aaron M. Milstone, Sharon Amit, Matan J. Cohen, Itai Gross, Allon E. Moses, and Oren Gordon
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Male ,Microbiology (medical) ,Staphylococcus aureus ,medicine.medical_specialty ,Meticillin ,Adolescent ,medicine.drug_class ,Antibiotics ,Bacteremia ,Drug resistance ,medicine.disease_cause ,Tertiary Care Centers ,03 medical and health sciences ,0302 clinical medicine ,Pharmacotherapy ,Antibiotic resistance ,030225 pediatrics ,Internal medicine ,Drug Resistance, Bacterial ,Epidemiology ,medicine ,Humans ,030212 general & internal medicine ,Israel ,Child ,Retrospective Studies ,Cross Infection ,business.industry ,Infant, Newborn ,Infant ,Staphylococcal Infections ,biochemical phenomena, metabolism, and nutrition ,bacterial infections and mycoses ,medicine.disease ,Survival Analysis ,Community-Acquired Infections ,Hospitalization ,Infectious Diseases ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Female ,business ,medicine.drug - Abstract
Staphylococcus aureus (SA) is a major cause of bacteremia in children. Methicillin-resistant SA (MRSA) is considered a public health threat; however, the differences in the prognosis of children with methicillin-susceptible SA (MSSA) versus MRSA bacteremia are not well defined.Data from all SA bacteremia events in children (0-16 years) from 2002 to 2016 in a single Israeli tertiary center were collected. Positive cultures within 48 hours of hospitalization were considered community associated (CA). Those obtained afterward or from children hospitalized within the previous year were considered health-care associated (HA).We recorded 427 events, 284 (66%) were HA, 64 (15%) were MRSA and 9 (2%) were CA-MRSA. There was no increase in MRSA during the study period. In-hospital, 30-day and 1-year mortality were 3% (12 cases), 3.5% (16 cases), and 12% (50 cases), respectively. A multivariable analysis controlling for demographics, admitting department and prior morbidity showed an increased 1-year mortality in children with HA bacteremia (hazard ratio [HR] 4.1; 95% confidence interval [CI]: 1.3-12) and prior chronic disease (HR 3.4; 95% CI 1.2 to 9.0). MRSA was not independently associated with increased one-year mortality compared with MSSA: HR (95% CI: 1.4 [0.6-3.1]).Short-term pediatric mortality after SA bacteremia is low. HA-SA bacteremia has an increased long-term risk for mortality, particularly in children with chronic diseases. Our data suggest mortality was not increased for MRSA compared with MSSA bacteremia. The very low rate of CA-MRSA bacteremia justifies the current practice not to include glycopeptides in the empiric treatment of CA bacteremia in Israel.
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- 2019
18. Giant lung cysts following necrotizing pneumonia: Resolution with conservative treatment
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Malena Cohen-Cymberknoh, Itai Gross, Eitan Kerem, Joel Reiter, Alex Gileles-Hillel, Avigdor Hevroni, Ira Erlichman, David Shoseyov, Reuven Tsabari, and Oren Gordon
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Lung Diseases ,Male ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Lung abscess ,Conservative Treatment ,medicine.disease_cause ,Necrosis ,Community-acquired pneumonia ,Streptococcus pneumoniae ,medicine ,Humans ,Cyst ,Lung Abscess ,Retrospective Studies ,Lung ,Pneumatocele ,Cysts ,business.industry ,Infant ,medicine.disease ,Anti-Bacterial Agents ,respiratory tract diseases ,Pneumonia ,medicine.anatomical_structure ,Pneumonia, Necrotizing ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Female ,Radiography, Thoracic ,Radiology ,business ,Complication - Abstract
Rationale Necrotizing pneumonia is characterized by destruction and liquefaction of the lung tissue and loss of the normal pulmonary parenchymal architecture. During the course of resolution areas of hyperlucency are formed, sometimes with the development of giant lung cysts that can be a field with fluid resembling lung abscess. There is no consensus on the management of these abnormalities. Objective To assess the prevalence of giant lung cysts as a complication of necrotizing pneumonia and to report our experience with conservative treatment that achieved complete resolution. Methods Medical chart reviews of all children aged 0 to 18 years hospitalized with necrotizing pneumonia in a single tertiary center from 2015 to 2017, demographic data, and clinical course during and after hospitalization as well as serial chest imaging were collected. Results During the study period, 761 children were diagnosed with community-acquired pneumonia, 16 of 761 (2.3%) had necrotizing pneumonia and 6 of 16 (37.5%) with necrotizing pneumonia complicated by a giant lung cyst or lung abscess. All were closely observed and showed complete clinical and radiographic resolution with antibiotic treatment. Conclusions Treatment of giant lung cyst formation following necrotizing pneumonia by a conservative approach with prolonged antibiotics results in complete recovery with no need for invasive procedures.
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- 2019
19. The role of
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Noa, Hurvitz, Lea Ohana Sarna, Cahan, Itai, Gross, Daniel, Grupel, Orli, Megged, Yehonatan, Pasternak, Violeta, Temper, Rachel, Levy, Giora, Weiser, and Saar, Hashavya
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Male ,Adolescent ,Soft Tissue Infections ,Staphylococcus lugdunensis ,Infant, Newborn ,Infant ,Staphylococcal Infections ,Child, Preschool ,Humans ,Female ,Staphylococcal Skin Infections ,Israel ,Child ,Retrospective Studies - Published
- 2021
20. The role of Staphylococcus lugdunensis as a pathogen in children: a multicentre retrospective study
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Noa Hurvitz, Giora Weiser, Orli Megged, Rachel Levy, Violeta Temper, Yehonatan Pasternak, Lea Ohana Sarna Cahan, Daniel Grupel, Saar Hashavya, and Itai Gross
- Subjects
0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,030106 microbiology ,Ear infection ,Staphylococcus lugdunensis ,medicine.disease_cause ,Microbiology ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Medicine ,Endocarditis ,Blood culture ,030212 general & internal medicine ,medicine.diagnostic_test ,biology ,business.industry ,General Medicine ,medicine.disease ,biology.organism_classification ,Skin Abscess ,Otitis ,Coagulase ,medicine.symptom ,business ,Staphylococcus - Abstract
Introduction: Staphylococcus lugdunensis (SL), a tube coagulase negative Staphylococcus , is known to be pathogenic in adults, causing mainly skin infections. Gap Statement: Previous studies assessing SL's role in paediatric populations are sparse and are mainly limited to case reports. Aim: Present the clinical characteristics consistent with SL infections and its putative role as a pathogen in the paediatric population. Methodology: A retrospective multicentre study was conducted in four paediatric medical centres in Israel. Patients with isolates of SL presenting between 2009–2019 were included. Results: SL was isolated from 40 patients. Average (±SD) age at presentation was 5.9 (±6.2) years, with 22 (55 %) being female. Skin, soft tissue and musculoskeletal infections were the most common (n=20, 50%) followed by ear infections (n=13, 32.5%). Five cases of urine isolates and two isolates from blood culture samples were also reported. Skin abscess was the most common infection among skin and soft tissue isolates, reported in 17 children (85%) with SL being the only pathogen in 15 (75%). Otitis media was the most common ear infection accounting for 12 (92%) of all cases with SL as the only isolate reported in 6 (46%). Five cases of SL isolates from urine specimens were reported, all of which with poor growth of bacteria and normal urinalysis. Two cases of SL growth in blood culture were found in children presenting with signs and symptoms consistent with invasive blood stream infection. Conclusions: In the paediatric population, studied infections caused by SL are increasingly observed. The results of this study highlight its role as a pathogen in soft tissue infections and its putative role in otitis media and invasive blood stream infections. However, the role of SL as an uropathogen was not established.
- Published
- 2021
21. Predicting factors for complications in peripheral intravenous catheters in the pediatric population
- Author
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Lea Ohana Sarna Cahan, David Rekhtman, Itai Gross, Amit Ashash, Ortal Resnick, Saar Hashavya, Wiessam Abu Ahmad, Sonia Rogachev, and Daniel Bancovsky
- Subjects
medicine.medical_specialty ,Catheters ,business.industry ,Antecubital Fossa ,Incidence (epidemiology) ,Infant ,General Medicine ,Surgery ,Catheter ,External Jugular ,Peripheral intravenous catheters ,Pediatrics, Perinatology and Child Health ,Catheterization, Peripheral ,medicine ,Humans ,Administration, Intravenous ,Prospective Studies ,Israel ,Prospective cohort study ,Complication ,business ,Child ,Pediatric population - Abstract
Aim To characterise the association between peripheral intravenous catheter (PIVC) gauge (G), the patient's age, insertion site and complication incidence. Methods This prospective study was performed in Hadassah Medical Center, Jerusalem, Israel, between June 2018 and March 2019. Children with PIVC admitted to the paediatric departments were included. PIVCs were evaluated daily. Results A total of 113 children with 132 PIVCs were included in the study. The most common site of insertion was the antecubital fossa (43.9%). PIVCs were most commonly used for intravenous (IV) antibiotics (46.6%). Complications were observed for 40.9% PIVCs. Dislodgement was the most common complication. The complication rate was higher for the lower limbs (60%) and external jugular veins (100%) p = 0.002. In infants younger than 12 months, the complication rate was higher for 22 G PIVCs or larger (58.7% versus 27.5%; p = 0.05). In contrast, for the 1-6 years age group, PIVCs smaller than 24 G had a higher complication rate (p = 0.004). Patients with comorbidities had a higher complication rate (p = 0.003). Conclusion Risk factors for complications are comorbidities and sites of insertion other than the upper limbs. In infants, 24 G PIVC or smaller should be inserted, whereas 22 G PIVC or larger are superior for 1- to 6-year-old children.
- Published
- 2020
22. Pediatric sedation in vascular malformations interventions by a non-anesthesiologist—feasibility and safety
- Author
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Anthony Verstandig, Giora Weiser, Adam Farkas, and Itai Gross
- Subjects
Male ,medicine.medical_specialty ,Adolescent ,Vascular Malformations ,Sedation ,Psychological intervention ,Conscious Sedation ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,030212 general & internal medicine ,Child ,Full Paper ,business.industry ,Infant ,General Medicine ,Anesthesiologists ,Child, Preschool ,Emergency medicine ,Emergency Medicine ,Female ,Patient Safety ,medicine.symptom ,business ,Epidemiologic Methods - Abstract
Objective: Sedation for pediatric patients undergoing interventional procedures in radiology is in increasing demand. Once only anesthesiology-performed, there is a demand for sedation services to perform sedations for these procedures. However, the safety of performing long sedations by non-anesthesiologists in interventional radiology has not been reported. This pilot study aimed at describing a single center's experience and outcome with sedation. Methods: This study reviews the sedations performed at a single center by a pediatric emergency physician who performed the sedation. The results regarding safety and satisfaction were reviewed. Results: A total of 52 sedations were documented. Four cases of significant adverse events and three adverse events occurred. In all cases, the procedures were completed. None of the patients required intubation or admission following the sedation. There was high satisfaction by the interventional radiologists. Conclusion: This small pilot study shows that sedations for procedures in interventional radiology can be performed safely and successfully by dedicated non-anesthesiology sedation services. This may be considered as an alternative when anesthesiology service is not available. Advances in knowledge: This small, single center pilot study examines the safety of sedation by a non-anesthesiologist for interventional radiology procedures. This may offer an additional method of performing procedures in the pediatric population while anesthesia is not readily available.
- Published
- 2020
23. Sedation Provided for Consultations in the Pediatric Emergency Department: Another Perspective
- Author
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Rotem, Rephaeli, David, Rehktman, Itai, Gross, and Giora, Weiser
- Subjects
Surgeons ,Consultants ,Attitude of Health Personnel ,Surveys and Questionnaires ,Conscious Sedation ,Humans ,Orthopedic Surgeons ,Practice Patterns, Physicians' ,Child ,Emergency Service, Hospital - Abstract
Many procedures requiring sedation in the pediatric emergency department are performed by consultants from outside the department. This team usually includes orthopedic surgeons and general surgeons. As sedation is now a standard of care in such cases, we evaluated consultants' views on sedation.To evaluate consultants' views on sedation.A questionnaire with both open-ended questions and Likert-type scores was distributed to all orthopedic surgeons and general surgeons performing procedures during the study period. The questionnaire was presented at three medical centers.The questionnaire was completed by 31 orthopedic surgeons and 16 general surgeons. Although the vast majority (93-100%) considered sedation important, a high percentage (64-75%) would still perform such procedures without sedation if not readily available.Sedation is very important for patients and although consultants understand its importance, the emergency department staff must be vigilant in both being available and not allowing procedures to "escape" the use of sedation.
- Published
- 2020
24. E-Bike–Related Trauma in Children and Adults
- Author
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Saar Hashavya, Daniel J. Weiss, Miklosh Bala, Itai Gross, and Elior Eliasi
- Subjects
Adult ,Male ,medicine.medical_specialty ,Adolescent ,education ,Poison control ,Injury rate ,Suicide prevention ,Occupational safety and health ,law.invention ,03 medical and health sciences ,Injury Severity Score ,0302 clinical medicine ,law ,0502 economics and business ,Injury prevention ,medicine ,Humans ,030212 general & internal medicine ,Israel ,Child ,Aged ,Retrospective Studies ,050210 logistics & transportation ,business.industry ,05 social sciences ,Trauma center ,Accidents, Traffic ,Infant ,Human factors and ergonomics ,Middle Aged ,Intensive care unit ,Bicycling ,Child, Preschool ,Emergency medicine ,Emergency Medicine ,Wounds and Injuries ,Female ,business ,human activities - Abstract
Electric bike (e-bike) usage is growing worldwide, and so is the e-bike-related injury rate.This study was undertaken to characterize e-bike-related injuries.Data of all e-bike-related injuries presenting to our level I trauma center between 2014 and 2016 were collected and analyzed. Adult and pediatric (18 years of age) e-bike-related injuries were then analyzed separately and compared.Forty-eight patients suffering from e-bike-related injuries presented to our trauma center between January 1, 2014 and December 31, 2016. Seventeen (35%) patients were18 years of age and 40 (85%) were male. The overall most common mechanism of injury was falling off the e-bike in 24 patients (50%), followed by collision with a static object in 9 patients (18.8%). Head (38%) and facial (33%) injuries were most common in children. In adult patients, orthopedic trauma was predominant, with extremity fractures in 35 (73%) followed by significant lacerations in 14 patients (29%). Severe trauma (Injury Severity Score15) was found in 17 (35%) patients. The duration of hospital stay was 10.8 ± 6 days, 12 patients (25%) required a stay in the intensive care unit, and 21 patients (43.7%) required surgery. Compared to adults, children (18 years of age) had significantly more head and face injuries (p = 0.05).Our study suggests that e-bike-related trauma may involve serious injuries and have typical injury patterns that resemble those seen in motorcycle-related injuries. Children are more likely to suffer head and face injuries because of their higher head to body ratio. We suggest that these injuries should therefore be triaged appropriately, preferably to a medical facility with proper trauma capabilities.
- Published
- 2018
25. Yield of Anaerobic Blood Cultures in Pediatric Emergency Department Patients
- Author
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Wiessam Abu Ahmad, Oren Gordon, Ben Simon Piatkowski, Itai Gross, Shmuel Benenson, Smadar Eventov-Friedman, and Saar Hashavya
- Subjects
Male ,0301 basic medicine ,Microbiology (medical) ,Pediatric emergency ,medicine.medical_specialty ,Adolescent ,030106 microbiology ,Bacteremia ,Tertiary Care Centers ,Bacteria, Anaerobic ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,medicine ,Humans ,Blood culture ,030212 general & internal medicine ,Child ,Abscess ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Incidence ,Incidence (epidemiology) ,Infant, Newborn ,Infant ,Retrospective cohort study ,Hospitals, Pediatric ,medicine.disease ,Infectious Diseases ,Blood Culture ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Emergency medicine ,Female ,Anaerobic bacteria ,Emergency Service, Hospital ,business ,Anaerobic exercise - Abstract
Background Anaerobic bacteremia is rare in children and current recommendations advocate against the routine use of anaerobic cultures in children. However, the incidence of anaerobic bacteremia and the utility of anaerobic blood cultures in children have not been assessed in recent years. Our pediatric emergency department (PED) policy still supports the use of both aerobic and anaerobic blood cultures in all cases of suspected bacteremia. This allowed us to re-evaluate the yield of anaerobic cultures in PED settings. Methods Retrospective data of all blood cultures taken in the PED in a single tertiary center from 2002 to 2016 were collected. The incidence and characteristics of children with positive anaerobic blood cultures were assessed. Risk factors for anaerobic bacteremia were defined. Results Of the 68,304 blood culture sets taken during the study period, 971 (1.42%) clinically significant positive cultures were found. Pathogenic obligatory anaerobic bacteria were isolated in 33 (0.05%) cultures. The leading risk factors for anaerobic bacteremia were head and neck abscess and intra-abdominal infection. Of all the true positive cultures, 187 (22%) were only detected in the anaerobic culture and would have otherwise been missed. Conclusions True anaerobic bacteremia is extremely rare in children admitted to the PED. Nevertheless, using anaerobic cultures may increase the overall yield of blood cultures.
- Published
- 2018
26. Using anaerobic blood cultures for infants younger than 90 days rarely showed anaerobic infections but increased yields of bacterial growth
- Author
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Itai Gross, Amir Shimonov, Wiessam Abu Ahmad, Smadar Eventov-Friedman, Oren Gordon, Shmuel Benenson, and Saar Hashavya
- Subjects
Male ,0301 basic medicine ,Microbiological culture ,030106 microbiology ,Physiology ,Bacteremia ,Bacterial growth ,Anaerobic infection ,Retrospective data ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Medicine ,University medical ,Anaerobiosis ,030212 general & internal medicine ,Retrospective Studies ,biology ,business.industry ,Incidence (epidemiology) ,Infant, Newborn ,General Medicine ,medicine.disease ,biology.organism_classification ,Blood ,Blood Culture ,Pediatrics, Perinatology and Child Health ,Female ,business ,Anaerobic exercise ,Bacteria - Abstract
AIM The use of anaerobic blood cultures in infants suspected of bacteraemia is controversial. Our children's hospital uses both aerobic and anaerobic media, regardless of the risk of anaerobic infection, and the aim of this study was to re-evaluate the use of anaerobic cultures in infants. METHODS We collected retrospective data from 2002 to 2016 on all blood cultures taken from infants younger than 90 days in the Hadassah-Hebrew University Medical Centre, Jerusalem, Israel. The incidence and characteristics of infants with positive anaerobic blood cultures were assessed. RESULTS During the study period, 51 035 blood cultures were drawn from 44 304 infants. Of these, 1496 (2.9%) were clinically significant positive cultures. Pathogenic obligatory anaerobic bacteraemia was extremely rare, with only 37 positive cultures (0.07%) from all of the cultures drawn. No specific risk factors for obligatory anaerobic bacteraemia could be defined, but as many as 174 (11.6%) clinically significant isolates were only detected in the anaerobic culture bottle. CONCLUSION True anaerobic bacteraemia was extremely rare in neonates. Nevertheless, using anaerobic culture media may increase the overall yield of bacterial culture growth by isolating anaerobic-facultative bacteria. This should be weighed up against increasing the volume of blood used for the aerobic culture.
- Published
- 2018
27. Physical activity and maximal oxygen uptake in adults with Prader–Willi syndrome
- Author
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Itai Gross, Varda Gross Tsur, Talia Eldar-Geva, Harry J. Hirsch, Larry Genstil, Yehuda Pollak, Naama Constantini, and Shachar Nice
- Subjects
Adult ,Male ,medicine.medical_specialty ,Body Mass Index ,Young Adult ,03 medical and health sciences ,Oxygen Consumption ,0302 clinical medicine ,Surveys and Questionnaires ,Internal medicine ,medicine ,Humans ,Aerobic exercise ,Treadmill ,Exercise ,Aerobic capacity ,nutritional and metabolic diseases ,VO2 max ,030229 sport sciences ,medicine.disease ,Obesity ,Psychiatry and Mental health ,Clinical Psychology ,Endocrinology ,Exercise Test ,Cardiology ,Female ,medicine.symptom ,Ventilatory threshold ,Psychology ,Prader-Willi Syndrome ,Weight gain ,Body mass index ,030217 neurology & neurosurgery - Abstract
Prader–Willi Syndrome (PWS) is the most common genetic syndrome causing life-threatening obesity. Strict adherence to a low-calorie diet and regular physical activity are needed to prevent weight gain. Direct measurement of maximal oxygen uptake (VO2 max), the “gold standard” for assessing aerobic exercise capacity, has not been previously described in PWS. Assess aerobic capacity by direct measurement of VO2 max in adults with PWS, and in age and BMI-matched controls (OC), and compare the results with values obtained by indirect prediction methods. Seventeen individuals (12 males) age: 19–35 (28.6 ± 4.9) years, BMI: 19.4–38.1 (27.8 ± 5) kg/m2 with genetically confirmed PWS who exercise daily, and 32 matched OC (22 males) age: 19–36 (29.3 ± 5.2) years, BMI: 21.1–48.1 (26.3 ± 4.9) kg/m2. All completed a medical questionnaire and performed strength and flexibility tests. VO2 max was determined by measuring oxygen consumption during a graded exercise test on a treadmill. VO2 max (24.6 ± 3.4 vs 46.5 ± 12.2 ml/kg/min, p
- Published
- 2017
28. Characteristics of mesenteric lymphadenitis in comparison with those of acute appendicitis in children
- Author
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David Rekhtman, Saar Hashavya, Shir Stibbe, Dan Arbell, Daniel J. Weiss, Yael Siedner-Weintraub, Natalia Simanovsky, and Itai Gross
- Subjects
Male ,medicine.medical_specialty ,Abdominal pain ,Adolescent ,Lymphocyte ,Gastroenterology ,Statistics, Nonparametric ,Diagnosis, Differential ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Internal medicine ,Humans ,Medicine ,030212 general & internal medicine ,Child ,Lymph node ,Retrospective Studies ,Ultrasonography ,Mesenteric Lymphadenitis ,Chi-Square Distribution ,business.industry ,Retrospective cohort study ,Appendicitis ,medicine.disease ,Abdominal Pain ,Surgery ,medicine.anatomical_structure ,Child, Preschool ,Acute Disease ,Pediatrics, Perinatology and Child Health ,Vomiting ,Female ,Lymph Nodes ,Lymph ,Symptom Assessment ,medicine.symptom ,Emergency Service, Hospital ,business ,Chi-squared distribution - Abstract
Mesenteric lymphadenitis (ML) is considered as one of the most common alternative diagnosis in a child with suspected acute appendicitis (AA). In this retrospective study, patients diagnosed with ML (n = 99) were compared in terms of demographic, clinical, and laboratory findings to patients diagnosed with AA (n = 102). This comparison was applied for both lymph nodes smaller and larger than 10 mm. When compared to patients with AA, patients with ML had significantly longer duration of symptoms prior to emergency department (ED) presentation (2.4 ± 2.6 vs 1.4 ± 1.4 days, P = 0.002) and multiple ED presentations (1.3 ± 0.7 vs 1.05 ± 0.3, P 0.001) and had longer duration of stay in the ED (9.2 ± 5.9 vs 5.2 ± 4 h, P 0.001), respectively. They also had significantly lower WBC (10.16 ± 4.7 × 10This study highlights multiple clinical and laboratory findings that differentiate ML and AA. Moreover, the absence of any difference with regard to the lymph nodes size might suggest that lymph nodes enlargement is a non-specific finding. What is Known : • Mesenteric lymphadenitis is a very common diagnosis in children with suspected acute appendicitis. • Despite its prevalence, only few studies addressed the clinical characteristics of this clinical entity and their comparison with acute appendicitis. What is New: • Mesenteric lymphadenitis and acute appendicitis could be differentiated by multiple clinical and laboratory parameters. • No significant difference was found between those presenting with small and large lymph nodes.
- Published
- 2016
29. Targeting the endocannabinoid/CB1 receptor system for treating obesity in Prader–Willi syndrome
- Author
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Rivka Hadar, Shiran Udi, Varda Gross-Tsur, Joan C. Han, Alina Nemirovski, Daniela P Reyes-Capo, Brian J. Earley, Itai Gross, Ibrahim Knani, Talia Eldar-Geva, Rachel Wevrick, Andrea M. Haqq, Harry J. Hirsch, Joseph Tam, Yehuda Pollak, Resat Cinar, and Asaad Gammal
- Subjects
Male ,0301 basic medicine ,Cannabinoid receptor ,Peripheral CB1 blockade ,Mice ,Receptor, Cannabinoid, CB1 ,Rimonabant ,Weight loss ,Receptor ,2. Zero hunger ,Sulfonamides ,PWS ,Metabolic syndrome ,Endocannabinoid system ,3. Good health ,Female ,Original Article ,medicine.symptom ,Prader-Willi Syndrome ,medicine.drug ,Adult ,medicine.medical_specialty ,congenital, hereditary, and neonatal diseases and abnormalities ,lcsh:Internal medicine ,Hypothalamus ,Arachidonic Acids ,Glycerides ,03 medical and health sciences ,Antigens, Neoplasm ,Internal medicine ,Weight Loss ,medicine ,Animals ,Humans ,lcsh:RC31-1245 ,Molecular Biology ,Magel2 ,business.industry ,Body Weight ,Antagonist ,Proteins ,nutritional and metabolic diseases ,Cell Biology ,medicine.disease ,Obesity ,Mice, Inbred C57BL ,Disease Models, Animal ,030104 developmental biology ,Endocrinology ,Case-Control Studies ,Pyrazoles ,business ,Endocannabinoids - Abstract
Objective Extreme obesity is a core phenotypic feature of Prader–Willi syndrome (PWS). Among numerous metabolic regulators, the endocannabinoid (eCB) system is critically involved in controlling feeding, body weight, and energy metabolism, and a globally acting cannabinoid-1 receptor (CB1R) blockade reverses obesity both in animals and humans. The first-in-class CB1R antagonist rimonabant proved effective in inducing weight loss in adults with PWS. However, it is no longer available for clinical use because of its centrally mediated, neuropsychiatric, adverse effects. Methods We studied eCB ‘tone’ in individuals with PWS and in the Magel2-null mouse model that recapitulates the major metabolic phenotypes of PWS and determined the efficacy of a peripherally restricted CB1R antagonist, JD5037 in treating obesity in these mice. Results Individuals with PWS had elevated circulating levels of 2-arachidonoylglycerol and its endogenous precursor and breakdown ligand, arachidonic acid. Increased hypothalamic eCB ‘tone’, manifested by increased eCBs and upregulated CB1R, was associated with increased fat mass, reduced energy expenditure, and decreased voluntary activity in Magel2-null mice. Daily chronic treatment of obese Magel2-null mice and their littermate wild-type controls with JD5037 (3 mg/kg/d for 28 days) reduced body weight, reversed hyperphagia, and improved metabolic parameters related to their obese phenotype. Conclusions Dysregulation of the eCB/CB1R system may contribute to hyperphagia and obesity in Magel2-null mice and in individuals with PWS. Our results demonstrate that treatment with peripherally restricted CB1R antagonists may be an effective strategy for the management of severe obesity in PWS., Highlights • Circulating levels of endocannabinoids are increased in individuals with PWS. • Magel2 is a negative regulator of hypothalamic endocannabinoid ‘tone’. • Peripherally-restricted CB1 receptor blockade reverses obesity in Magel2-null mice.
- Published
- 2016
30. The molluscum contagiosum BOTE sign-Infected or inflamed?
- Author
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Yonatan Oster, Orli Megged, Dan Engelhard, Vered Molho-Pessach, Noa Ben Nachum, Saar Hashavya, Itai Gross, and Giora Weiser
- Subjects
medicine.medical_specialty ,Molluscum Contagiosum ,Erythema ,Secondary infection ,Statistical difference ,Inflammation ,Dermatology ,Skin infection ,Lesion ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Skin surface ,medicine ,Humans ,Israel ,Child ,Retrospective Studies ,Skin ,Molluscum contagiosum ,business.industry ,medicine.disease ,Pediatrics, Perinatology and Child Health ,medicine.symptom ,business - Abstract
Background Molluscum contagiosum (MC) is a common skin infection in the pediatric age group. The infection is self-limited and manifests as discrete, umbilicated skin-colored papules on any skin surface of the body. At times, complications such as local dermatitis and swelling, erythema, and pus formation may appear. These signs of inflammation are commonly presumed to represent bacterial infection. Methods This multicenter study was a retrospective analysis of data collected on all patients diagnosed with inflamed lesions secondary to MC and treated at the Hadassah Medical Centers and Shaare Zedek Medical Center in Jerusalem, Israel, from 1/1/2008 to 1/07/2018. Characteristics of children with positive cultures were compared to those with negative cultures and those with contaminants. Results A total of 56 cases were reviewed; the mean age at presentation was 4.6 years. Fever was reported in 12.5%, and 62.5% received systemic antibiotics because of their inflamed MC prior to admission. Fifty-five percent had sterile cultures or cultures growing only contaminants. Only seven had positive cultures with the common cutaneous pathogens. No statistical difference was observed between the patients with pathogenic isolates and patients with sterile or non-pathogenic cultures in terms of demographics, lesion characteristics, inflammatory markers, or length of hospitalization. Conclusion The findings suggest that most cases of suspected MC-related secondary infection can be attributed to inflammation rather than to bacterial infection. However, in some cases, true bacterial infection should be suspected and treated accordingly.
- Published
- 2019
31. The Epidemiology, Injury Patterns and Outcomes of Horse-Related Injuries in Israeli Children
- Author
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Itai, Gross, Ayalon, Hadar, Miklosh, Bala, and Saar, Hashavya
- Subjects
Male ,Age Factors ,Abdominal Injuries ,Length of Stay ,Wounds, Nonpenetrating ,Hospitalization ,Fractures, Bone ,Injury Severity Score ,Sex Factors ,Spinal Injuries ,Animals ,Craniocerebral Trauma ,Humans ,Accidental Falls ,Female ,Horses ,Israel ,Child - Abstract
Horse riding has become increasingly popular in recent years and is a common activity among children. As a result, pediatric horse-related injuries are frequently encountered in emergency departments.To examine the characteristics of horse-related injuries in the pediatric population.We collected and analyzed the data on all pediatric horse-related injuries presented to a tertiary hospital, level one trauma center, during the years 2006-2016.A total of 53 children with horse-related injuries were documented. Forty-two patients were male (79%) and their mean age was 11.13 ± 4.72 years. The most common mechanism of injury was falling off a horse (31 patients, 58%) and the most common type of injury was skeletal (32 patients, 60%). Head injuries occurred in 16 patients (30%) and facial injuries in 12 (23%). The mean Injury Severity Score (ISS) was 10.5 ± 6.32, and 15 patients (28%) had severe trauma (ISS15). Twenty-nine patients (55%) required trauma team intervention, 12 (23%) were admitted to the intensive care unit, and 24 (45%) required surgery. The mean length of hospitalization was 4.3 ± 3.14 days.Our study suggests that horse-related trauma may involve serious injuries and it exhibits typical injury patterns. Young boys are at highest risk. The potential severity of these injuries merits a thorough evaluation. We suggest that these injuries be triaged appropriately, preferably to a medical facility with proper trauma capabilities.
- Published
- 2019
32. The use of bacterial DNA from saliva for the detection of GAS pharyngitis
- Author
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Avi Schechter, Ayelet Gayego, Naama Pines, Alon Moses, Itai Gross, and Saar Hashavya
- Subjects
0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,Saliva ,Tonsillitis ,Infectious and parasitic diseases ,RC109-216 ,Microbiology ,tonsillitis ,Streptococcus group A ,03 medical and health sciences ,0302 clinical medicine ,stomatognathic system ,otorhinolaryngologic diseases ,medicine ,Dentistry (miscellaneous) ,Sampling (medicine) ,saliva ,Acute Tonsillitis ,business.industry ,pharyngitis ,throat swab ,food and beverages ,030206 dentistry ,medicine.disease ,Throat swab ,Dermatology ,QR1-502 ,Pharyngitis ,stomatognathic diseases ,PCR ,030104 developmental biology ,Infectious Diseases ,Original Article ,medicine.symptom ,business ,Research Article ,Bacterial dna - Abstract
Background Acute tonsillitis is a very common medical condition. Despite different methods of detection, all tests are based on GAS sampling using a throat swab. However, obtaining the swab can elicit vomiting and is often accompanied by fear and apprehension in children. The aim of this study was to find a non-invasive method for the detection of GAS pharyngitis. Methods A classic throat swab was obtained for culture, and a saliva sample was taken from 100 subjects recruited from Meuhedet Health Care Organization clinic. Real time PCR was performed to detect GAS dnaseB specific gene in the saliva samples. Results 56% of the throat cultures and 48% of the PCR samples were positive for GAS. The overall sensitivity and specificity of the saliva PCR method was 79% and 91% respectively; NPV and PPV were 77% and 92% respectively. When excluding patients who presented on the first day of fever, sensitivity and specificity increased to 90% and 100% respectively. No other anamnestic or clinical findings increased the yield of the test. Conclusion Saliva-based PCR amplification of GAS DNA method is effective in detection of GAS pharyngitis. Further studies are needed to achieve detection rates to replace the traditional throat swab-based approach.
- Published
- 2020
33. 0923 - THE EFFICACY OF 16S RIBOSOMAL DNA SEQUENCING IN THE DIAGNOSIS OF BACTERIA FROM BLOOD, BONE AND SYNOVIAL FLUID SAMPLES OF CHILDREN WITH MUSCULOSKELETAL INFECTIONS
- Author
-
Itai Gross
- Published
- 2018
34. 01 - THE YIELD OF ANAEROBIC BLOOD CULTURES IN NEONATES
- Author
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Itai Gross
- Published
- 2018
35. USE OF WHATSAPP FOR THE INTERPRETATION OF NEONATAL CHEST RADIOGRAPHS: FREQUENCY AND RELIABILITY
- Author
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Itai Gross
- Published
- 2018
36. Questionnaire-based study showed that neonatal chest radiographs could be reliably interpreted using the WhatsApp messaging application
- Author
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Benjamin Z. Koplewitz, Smadar Eventov-Friedman, Itai Gross, Yshia Langer, Wiessam Abu Ahmad, and Yehonatan Pasternak
- Subjects
Male ,medicine.medical_specialty ,Neonatal intensive care unit ,Radiography ,Washout period ,03 medical and health sciences ,0302 clinical medicine ,Disease severity ,Neonatologists ,030225 pediatrics ,Surveys and Questionnaires ,Image Interpretation, Computer-Assisted ,medicine ,Humans ,030212 general & internal medicine ,Israel ,Retrospective Studies ,Academic Medical Centers ,medicine.diagnostic_test ,Umbilical line ,business.industry ,Information Dissemination ,Infant, Newborn ,Internship and Residency ,General Medicine ,Mobile Applications ,Pediatrics, Perinatology and Child Health ,Physical therapy ,Female ,Radiography, Thoracic ,Smartphone ,Chest radiograph ,business - Abstract
Aim We surveyed whether clinicians used the WhatsApp messaging application to view neonatal chest radiographs and asked a sub-sample to compare them with computer screen viewings. Methods The study was conducted at three university-affiliated medical centres in Israel from June-December 2016. Questionnaires on using smartphones for professional purposes were completed by 68/71 paediatric residents and 20/28 neonatologists. In addition, 11 neonatologists viewed 20 chest radiographs on a computer screen followed by a smartphone and 10 viewed the same radiographs in the opposite order, separated by a washout period of 2 months. After another 2 months, five from each group viewed the same radiographs on a computer screen. Different interpretations between viewing modes were assessed. Results Most respondents used WhatsApp to send chest radiographs for consultation: 82% of the paediatric residents and 80% of the neonatologists. The mean number of inconsistencies in diagnosis was 3.7/20 between two computer views and 2.9/20 between computer and smartphone views (p = 0.88) and the disease severity means were 3.7/20 and 2.85/20, respectively (p = 0.94). Neonatologists using WhatsApp only determined umbilical line placement in 80% of cases. Conclusion WhatsApp was reliable for preliminary interpretation of neonatal chest radiographs, but caution was needed when assessing umbilical lines.
- Published
- 2017
37. Paroxysmal Tonic Upward Gaze at Adolescence: A Girl with Prader-Willi Syndrome
- Author
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Itai, Gross and Varda, Gross-Tsur
- Subjects
Movement Disorders ,Ocular Motility Disorders ,Adolescent ,Age Factors ,Humans ,Ataxia ,Female ,Prader-Willi Syndrome - Published
- 2017
38. Paediatric Erythema Multiforme: Epidemiological, Clinical and Laboratory Characteristics
- Author
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Yael Siedner-Weintraub, Itai Gross, Almog David, Shimon Reif, and Vered Molho-Pessach
- Subjects
Male ,medicine.medical_specialty ,Adolescent ,Dermatology ,Medical Overuse ,Diagnosis, Differential ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Predictive Value of Tests ,Risk Factors ,Terminology as Topic ,Epidemiology ,Pneumonia, Mycoplasma ,Mucositis ,Medicine ,Humans ,030212 general & internal medicine ,Erythema multiforme ,Age of Onset ,Diagnostic Errors ,Israel ,Child ,Retrospective Studies ,Erythema Multiforme ,business.industry ,Retrospective cohort study ,General Medicine ,medicine.disease ,Rash ,Toxic epidermal necrolysis ,Hospitalization ,Treatment Outcome ,Child, Preschool ,Mycoplasma pneumonia ,Etiology ,Female ,medicine.symptom ,business - Abstract
Erythema multiforme (EM) is an immune-mediated reaction presenting as acrofacial target lesions. Most studies utilize the outdated classification, which includes EM, Stevens-Johnson syndrome and toxic epidermal necrolysis as related entities. We describe here epidemiological, aetiological, clinical, laboratory and treatment characteristics of paediatric EM. This is a retrospective single-centre study, performed between 2000 and 2013. Of 119 children given a diagnosis of EM, only 30 met clinical criteria and were included in this study. Most misdiagnosed cases were non-specific eruptions and urticaria multiforme. Mean age was 11.3 years. Fifty percent had mucosal involvement. An aetiology was observed in half of the patients. Seventy percent of patients were admitted to hospital, 46.7% were treated with systemic steroids. Sixteen percent had recurrent EM. The most common identified infectious agent associated with EM in this study was Mycoplasma pneumonia and the cases associated with this infection may represent the recent entity, mycoplasma-induced rash and mucositis. Association with herpes simplex virus was not observed. Despite being a benign, self-limiting condition, children were over-treated in terms of hospitalization and therapy.
- Published
- 2016
39. Attitudes toward prenatal genetic testing and therapeutic termination of pregnancy among parents of offspring with Prader-Willi syndrome
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Harry J. Hirsch, Talia Geva-Eldar, Yehuda Pollak, Itai Gross, Noa Even Zohar Gross, and Varda Gross-Tsur
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0301 basic medicine ,Adult ,Male ,Parents ,congenital, hereditary, and neonatal diseases and abnormalities ,Offspring ,Cross-sectional study ,Prenatal diagnosis ,030105 genetics & heredity ,Social class ,Religiosity ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Pregnancy ,Prenatal Diagnosis ,Surveys and Questionnaires ,Genetics ,Medicine ,Humans ,Genetic Testing ,Young adult ,Israel ,reproductive and urinary physiology ,Genetics (clinical) ,Genetic testing ,Aged ,030219 obstetrics & reproductive medicine ,medicine.diagnostic_test ,business.industry ,Siblings ,nutritional and metabolic diseases ,General Medicine ,Middle Aged ,medicine.disease ,Religion ,Cross-Sectional Studies ,Phenotype ,Social Class ,Female ,business ,Attitude to Health ,Prader-Willi Syndrome ,Clinical psychology - Abstract
Prenatal diagnosis (PND) raises ethical dilemmas such as the option of termination of pregnancy (TOP) in cases with severe outcome. Prader-Willi Syndrome (PWS), a complex neurogenetic syndrome with high morbidity and mortality throughout life. Recently, a unique prenatal phenotype was reported and TOP becomes a possibility.To explore factors influencing the attitudes of parents of PWS children toward PND and TOP concerning a hypothetical pregnancy with a PWS fetus.All 85 parents of individuals with PWS were interviewed regarding their attitudes towards PND and TOP using semi-structured questionnaire.Fifty-seven parents were supportive of invasive PND and 28 of non-invasive tests only; none opposed PND. Thirty eight favored TOP, additional 31 supported TOP under certain conditions such as spiritual advice, 15 were categorically against TOP. Attitudes correlated with religiosity (p 0.025), mother's education (p 0.001), mother's work status (p 0.001), current age of the child with PWS (p 0.008). Couples had similar attitudes regarding PND and TOP. No correlation was found with gender, genetic subtype and parental age.Most parents of individuals with PWS support PND, however less than half support TOP. Religiosity was the most influential factor. Familial worldview should be taken into account during prenatal counseling.
- Published
- 2016
40. Successful Treatment of Neonatal Extreme Breastfeeding-Associated Hypernatremia
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Itai, Gross, primary, Yael Siedner, Weintraub, additional, Amir, Zilkha, additional, and Jacques, Braun, additional
- Published
- 2017
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41. Medical Decisions of Pediatric Residents Turn Riskier after a 24-Hour Call with No Sleep
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Netanel Wasserteil, Adi Aran, Joseph Mendlovic, Yehuda Pollak, and Itai Gross
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Adult ,Male ,Pediatrics ,medicine.medical_specialty ,Time Factors ,Clinical Decision-Making ,Poison control ,Suicide prevention ,03 medical and health sciences ,0302 clinical medicine ,Risk-Taking ,Injury prevention ,Medicine ,Humans ,Attention ,030212 general & internal medicine ,Israel ,Psychomotor learning ,business.industry ,Health Policy ,Internship and Residency ,Workload ,Actigraphy ,Nap ,Sleep deprivation ,Physical therapy ,Sleep Deprivation ,Female ,Sleep (system call) ,medicine.symptom ,business ,030217 neurology & neurosurgery ,Psychomotor Performance - Abstract
Background. Despite a gradual reduction in the workload during residency, 24-hour calls are still an integral part of most training programs. While sleep deprivation increases the risk propensity, the impact on medical risk taking has not been studied. Objective. This study aimed to assess the clinical decision making and psychomotor performance of pediatric residents following a limited nap time during a 24-hour call. Methods. A neurocognitive battery (IntegNeuro) and a medical decision questionnaire were completed by 44 pediatric residents at 2 time points: after a 24-hour call and following 3 nights with no calls (sleep ≥5 hours). To monitor sleep, residents wore actigraphs and completed sleep logs. Results. Nap time during the shift was
- Published
- 2015
42. Cluster of Fusarium solani isolations in a Bronchoscopy Unit
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Colin Block, Mitchell J. Cohen, Allon E. Moses, Carmela Schwartz, Z.G. Fridlender, N. Berkman, L. Levy, Shmuel Benenson, and Itai Gross
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0301 basic medicine ,Microbiology (medical) ,Fusarium ,Cross infection ,Fusariosis ,medicine.diagnostic_test ,biology ,business.industry ,030106 microbiology ,Bronchoscopy Unit ,General Medicine ,biology.organism_classification ,Disease cluster ,medicine.disease ,Microbiology ,03 medical and health sciences ,Infectious Diseases ,Bronchoscopy ,medicine ,Bronchoscopes ,business ,Fusarium solani - Published
- 2016
43. Antenatal Bartter syndrome presenting as hyperparathyroidism with hypercalcemia and hypercalciuria: a case report and review
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Ari Simckes, David Gillis, Yael Siedner-Weintraub, and Itai Gross
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Male ,Polyhydramnios ,medicine.medical_specialty ,Pediatrics ,endocrine system diseases ,Endocrinology, Diabetes and Metabolism ,Hypercalciuria ,Metabolic alkalosis ,Hypokalemia ,urologic and male genital diseases ,Bartter syndrome ,Diagnosis, Differential ,Endocrinology ,Internal medicine ,medicine ,Humans ,Solute Carrier Family 12, Member 1 ,Hyperparathyroidism ,urogenital system ,business.industry ,Bartter Syndrome ,Infant ,medicine.disease ,Prognosis ,Bartter's syndrome ,Phenotype ,Pediatrics, Perinatology and Child Health ,Mutation ,medicine.symptom ,Nephrocalcinosis ,business - Abstract
Antenatal type I Bartter syndrome (ABS) is usually identified by the presence of polyhydramnios, premature delivery, hypokalemia, metabolic alkalosis, hypercalciuria, and nephrocalcinosis caused by mutations in the Na-K-2Cl cotransporter (NKCC2)-encoding SLC12A1 gene. In this report, we describe a novel presentation of this syndrome with hypercalcemic hypercalciuric hyperparathyroidism, and review the literature of the variable atypical presentations of ABS.
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- 2014
44. Irisin and the Metabolic Phenotype of Adults with Prader-Willi Syndrome
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Varda Gross-Tsur, Talia Eldar-Geva, Yehuda Pollak, Itai Gross, and Harry J. Hirsch
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Adult ,Blood Glucose ,Leptin ,Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,lcsh:Medicine ,Context (language use) ,White adipose tissue ,Biology ,Young Adult ,Insulin resistance ,Internal medicine ,Blood plasma ,Myokine ,medicine ,Humans ,Insulin ,Resting energy expenditure ,Saliva ,lcsh:Science ,Multidisciplinary ,lcsh:R ,nutritional and metabolic diseases ,medicine.disease ,Lipids ,Fibronectins ,Phenotype ,Endocrinology ,Case-Control Studies ,Female ,lcsh:Q ,Insulin Resistance ,Prader-Willi Syndrome ,Research Article - Abstract
CONTEXT Hyperphagia, low resting energy expenditure, and abnormal body composition contribute to severe obesity in Prader Willi syndrome (PWS). Irisin, a circulating myokine, stimulates "browning" of white adipose tissue resulting in increased energy expenditure and improved insulin sensitivity. Irisin has not been previously studied in PWS. OBJECTIVES Compare plasma and salivary irisin in PWS adults and normal controls. Examine the relationship of irisin to insulin sensitivity and plasma lipids. DESIGN AND STUDY PARTICIPANTS A fasting blood sample for glucose, lipids, insulin, leptin, adinopectin, and irisin was obtained from 22 PWS adults and 54 healthy BMI-matched volunteers. Saliva was collected for irisin assay in PWS and controls. RESULTS Fasting glucose (77 ± 9 vs 83 ± 7 mg/dl, p = 0.004), insulin (4.1 ± 2.0 vs 7.9 ± 4.7 μU/ml, p
- Published
- 2015
45. P203: Outbreak of puerperal fever in an obstetric ward: a reminder of Ignaz semmelweis
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Carmela Schwartz, Shmuel Benenson, Colin Block, Itai Gross, and Allon E. Moses
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Microbiology (medical) ,medicine.medical_specialty ,Pediatrics ,Indirect contact ,Streptococcus ,business.industry ,Public Health, Environmental and Occupational Health ,Outbreak ,Drug resistance ,medicine.disease_cause ,Throat swab ,Infectious Diseases ,Medical microbiology ,Positive blood culture ,Poster Presentation ,medicine ,Childbirth ,Pharmacology (medical) ,Intensive care medicine ,business - Abstract
Group A streptococcus (GAS) puerperal fever was recognized long ago but unfortunately still poses a serious problem at childbirth. The source for the infection usually cannot be determined.
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- 2013
46. P17.62 Point Prevalence of Gastrointestinal Carriage of Vancomycin-Resistant Enterococci (VRE) on Patients Hospitalized on Internal Medicine
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Allon E. Moses, V. Roval, Itai Gross, M. Cohen, Colin Block, Shmuel Benenson, and N. Minster
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Microbiology (medical) ,medicine.medical_specialty ,Infectious Diseases ,Carriage ,business.industry ,Internal medicine ,Prevalence ,medicine ,Vancomycin-Resistant Enterococci ,General Medicine ,business - Published
- 2006
47. Early detection of breast cancer using total biochemical analysis of peripheral blood components: a preliminary study
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Joseph Kapelushnik, Omri Bar, Hanoch Kashtan, Udi Zelig, Osnat Madhala-Givon, Ilana Nathan, Itai Gross, Felix Flomen, Eyal Barlev, Nir Wasserberg, and Shaul Mordechai
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Breast cancer detection ,Adult ,Pathology ,medicine.medical_specialty ,Cancer Research ,Biopsy ,Breast Neoplasms ,Peripheral blood mononuclear cell ,Plasma ,Young Adult ,Breast cancer screening ,Breast cancer ,Risk Factors ,Surgical oncology ,Spectroscopy, Fourier Transform Infrared ,Biomarkers, Tumor ,Genetics ,Humans ,Medicine ,Infrared spectroscopy ,Early Detection of Cancer ,Aged ,Aged, 80 and over ,medicine.diagnostic_test ,business.industry ,Case-control study ,Cancer ,Middle Aged ,medicine.disease ,Mononuclear cells ,ROC Curve ,Oncology ,Case-Control Studies ,Leukocytes, Mononuclear ,Female ,Lymph ,business ,Blood Chemical Analysis ,Research Article - Abstract
Background Most of the blood tests aiming for breast cancer screening rely on quantification of a single or few biomarkers. The aim of this study was to evaluate the feasibility of detecting breast cancer by analyzing the total biochemical composition of plasma as well as peripheral blood mononuclear cells (PBMCs) using infrared spectroscopy. Methods Blood was collected from 29 patients with confirmed breast cancer and 30 controls with benign or no breast tumors, undergoing screening for breast cancer. PBMCs and plasma were isolated and dried on a zinc selenide slide and measured under a Fourier transform infrared (FTIR) microscope to obtain their infrared absorption spectra. Differences in the spectra of PBMCs and plasma between the groups were analyzed as well as the specific influence of the relevant pathological characteristics of the cancer patients. Results Several bands in the FTIR spectra of both blood components significantly distinguished patients with and without cancer. Employing feature extraction with quadratic discriminant analysis, a sensitivity of ~90 % and a specificity of ~80 % for breast cancer detection was achieved. These results were confirmed by Monte Carlo cross-validation. Further analysis of the cancer group revealed an influence of several clinical parameters, such as the involvement of lymph nodes, on the infrared spectra, with each blood component affected by different parameters. Conclusion The present preliminary study suggests that FTIR spectroscopy of PBMCs and plasma is a potentially feasible and efficient tool for the early detection of breast neoplasms. An important application of our study is the distinction between benign lesions (considered as part of the non-cancer group) and malignant tumors thus reducing false positive results at screening. Furthermore, the correlation of specific spectral changes with clinical parameters of cancer patients indicates for possible contribution to diagnosis and prognosis.
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