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עמוד בית
Sun, 24.11.24

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December 2017
Nili Elior MD, Diana Tasher MD, Elli Somekh MD, Michal Stein MD, Orna Schwartz Harari MA and Avigdor Mandelberg MD

Background: Nebulized hypertonic saline (HS) treatment is unavailable to large populations worldwide.

Objectives: To determine the bacterial contamination and electrolyte concentrations in homemade (HM-HS) vs. pharmacy made (PM-HS).

Methods: We conducted three double-blind consecutive trials: 50 boiled-water homemade 3%-HS (B-HM-HS) bottles and 50 PM-HS. The bottles were cultured after 48 hours. Electrolyte concentrations were measured in 10 bottles (5 per group). Forty bottles (20 per group) were distributed to volunteers for simulation of realistic treatment by drawing 4 ml HS three times daily. From each bottle, 4 ml samples were cultured after 1, 5, and 7 days. Volunteers prepared 108 bottles containing 3%-HS, sterilizing them using a microwave oven (1100–1850W). These bottles were cultured 24 hours, 48 hours, and 1 month after preparation.

Results: Contamination rates of B-HM-HS and PM-HS after 48 hours were 56% and 14%, respectively (P = 0.008). Electrolyte concentrations were similar: 3.7% ± 0.4 and 3.5% ± 0.3, respectively (P = NS). Following a single day of simulation B-HM-HS bottles were significantly more contaminated than PM-HS bottles: 75% vs. 20%, respectively (P < 0.01). By day 7, 85% of PM-HS bottles and 100% of B-HM-HS bottles were contaminated (P = 0.23). All 108 microwave-oven prepared bottles (MICRO-HS) were sterile, which was significantly better than the contamination rate of B-HM-HS and PM-HS (P < 0.001). Calculated risk for a consecutive MICRO-HS to be infected was negligible.

Conclusion: Microwave preparation provides sterile HS with adequate electrolyte concentrations, and is a cheap, fast, and widely available method to prepare HS.

 

Michal Kori MD, Jacob Yahav MD, Rita Berdinstein MD and Haim Shmuely, MD

Background: Empiric treatment for Helicobacter pylori is influenced by antibiotic susceptibility of infecting strains. A rise in the resistance rate to clarithromycin and metronidazole has been reported in pediatric populations.

Objectives: To assess the primary and secondary antibiotic resistance of H. pylori isolates in Israeli children and adolescents.

Methods: A retrospective review of H. pylori isolates cultured from antral biopsies of consecutive children aged 1 to 18 years, who were referred to the Pediatric Gastroenterology Unit, Kaplan Medical Center, over a 2.8 year period, was performed. Antibiotic susceptibility to clarithromycin, metronidazole, amoxicillin, tetracycline, and levofloxacin was determined by E-test. Data on the age of the patient, indication for endoscopy, and antibiotic treatment for H. pylori in previously treated children was collected.

Results: Cultures for H. pylori yielded 123 isolates. In children not previously treated (n=95), the primary global resistance was 38% with resistance to clarithromycin 9.5%, metronidazole 32.6 %, and to both 4.2%. Respective rates of resistance in previously treated children (n=28) were 71% (P = 0.002), 29% (P = 0.02), and 61% (P = 0.007). Simultaneous resistance to both drugs was found in 18% (P = 0.02). All H. pylori strains were susceptible to amoxicillin, tetracycline, and levofloxacin. Past eradication treatment was the only independent risk factor for antibiotic resistance in multivariate analysis.

Conclusions: Significantly higher resistance rates were found in previously treated patients, stressing the need to refrain from empiric treatment using the "test and treat strategy." Culture-based treatment strategy should be considered in all previously treated children.

Jad Khatib MD, Naama Schwartz PhD and Naiel Bisharat MD PhD

Background: In 2006, the Israeli Ministry of Health distributed guidelines for improving cardiopulmonary resuscitation (CPR) knowledge among hospital staff. The impact of these guidelines on survival after in-hospital cardiac arrest (IHCA) is unclear.

Objectives: To compare rates of incidence and survival to discharge after IHCA, preceding and subsequent to issuance of the guidelines: 1995–2005 and 2006–2015.

Methods: Data were retrieved from the computerized records of patients who had an IHCA and underwent CPR. In addition, we retrieved data available from the hospital's resuscitation committee that included number, type, methods of training in CPR refresher courses, type and number of audits carried out during the past 10 years, and type of CPR quality assessments.

Results: From 1995 to 2015, IHCA incidence increased from 0.7 to 1.7 per 1000 admissions (P < 0.001), while survival rate did not increase (P = 0.37). Survival for shockable rhythms increased from 15.4 to 30.2% (P = 0.05) between the two time periods. The ratio of non-shockable to shockable rhythms increased from 2.4 to 4.6 (P = 0.01) between the two time periods.

Conclusions: Overall IHCA survival did not improve following the issuance of guidelines requiring CPR refresher courses, although survival improved for patients with initial shockable dysrhythmia. A decrease of events with initial shockable dysrhythmia, an increase with acute renal failure, and a decrease occurring in intensive care units contributed to understanding the findings. We found that CPR refresher courses were helpful, although an objective measure of their effectiveness is lacking.

 

Noam Meiri MD, Amichi Ankri (medical clown), Faten Ziadan MA, Itay Nahmias (medical clown), Muriel Konopnicki MD, Zeev Schnapp MD, Omer Itzhak Sagi MD, Mohamad Hamad Saied MD and Giora Pillar MD PhD

Background: A good physical exam is necessary to help pediatricians make the correct diagnosis and can save unnecessary imaging or invasive procedures. Distraction by medical clowns may create the optimal conditions for a proper physical examination.

Methods: Children aged 2–6 years who required physical examination in the pediatric emergency department were recruited and randomly assigned to one of two groups: physical exam by a pediatrician in the presence of caregivers vs. physical exam with the assistance of a medical clown. Outcome measures consisted of the level of child's discomfort, anxiety, and the quality of the physical examination.

Results: Ninety three children participated. Mean age was 3.3 ± 3.6 years (range 2–6). The duration of the physical exam was similar between the clown and control groups (4.6 ± 1.4 minutes vs. 4.5 ± 1.1 minutes (P = 0.64). The duration of discomfort was shorter in the clown group (0.2 ± 0.6 minutes) than the control group(1.6 ± 2.0 minutes, P = 0.001). In the medical clown group, 94% of pediatricians reported that the medical clown improved their ability to perform a complete physical examination. A trend of less hospitalization in the medical clown group was also noticed (11.3% in the medical clown group vs. 18.3% in the control group, P = 0.1); however, further study is required to verify this observation.

Conclusions: Integration of a medical clown in physical examination improves the overall experience of the child and the caregivers and helps the pediatrician to perform a complete physical examination.

Liat Shargian-Alon MD, Oren Pasvolsky MD and Pia Raanani MD

Background: During the past decades, beta thalassemia major (TM) and beta thalassemia intermedia (TI) have transformed from a universally fatal disease at a young age into a chronic disease. This advancement is attributed to improved chelation therapy as well as enhanced management strategies, with focused attention on disease and treatment-related complications.

Objectives: To describe characteristics of adults with thalassemia as well as treatment modalities, disease and treatment-related complications, and socioeconomic information of the patients.

Methods: We preformed a retrospective analysis of 14 adult patients > 35 years of age with TM and TI who were treated at our institute, a single center specializing in the care of adult thalassemia patients living in Israel, between the years 2006 and 2016.

Results: The median age of patients was 37 years and most patients were transfusion-dependent. The median number of chelation therapeutic lines was three, and 85.7% of patients were treated at one point by combination chelation therapy. Most patients suffered from at least some form of endocrine dysfunction (n=12), and four patients developed overt heart failure. Of the patients, 85% had completed at least a high school education, 78% were employed, and 64.2% were married.

Conclusions: Prolonged survival of thalassemia patients in recent years has been accompanied by a new set of challenges for both the patients and the treating staff. Further research is warranted to improve both medical management and the socioeconomic well-being of this unique group of adult thalassemia patients.

Atzmon Tsur, Marina Deeb, Nael Shakeer, Hossein Zangaria and Michal Agra
Sandra Benizri, Nancy Agmon-Levin, Noam D. Kitrey, Dan Carter, Elinor Goshen and Yehonathan Sharabi

A 47 year old man presented with a combination of dry mouth and lightheadedness while standing. His medical background was unremarkable except for cigarette smoking and hyperlipidemia. Sjögren’s syndrome was ruled out, and he was referred for evaluation of orthostatic hypotension, which by then included syncopal episodes and injuries. Additional symptoms included dry eyes, constipation, reduced sweating, and erectile dysfunction. After excluding medications and structural cardiac abnormalities as causes of orthostatic hypotension, a clinical autonomic evaluation was performed. The pattern of beat-to-beat blood pressure associated with performance of the Valsalva maneuver, and a low plasma norepinephrine level that did not increase in response to standing, established that the orthostatic hypotension was neurogenic. Treatment with an alpha-adrenoceptor agonist and fludrocortisone yielded partial improvement. After systemic diseases involving autonomic failure were excluded, cardiac sympathetic neuroimaging was performed by 123I-metaliodobenzylguanidine (MIBG) scanning. The normal uptake seen in the heart indicated intact post ganglionic sympathetic innervation. There were no signs of central neurodegeneration or peripheral neuropathy. Because of symptoms and signs of both parasympathetic and sympathetic failure without denervation, an autonomic ganglionopathy was considered. A high titer of antibody to the neuronal nicotinic receptor, which mediates ganglionic neurotransmission, was obtained. The diagnosis of autoimmune autonomic ganglionopathy (AAG) was made, and the management strategy shifted to first lowering the antibody burden by plasma exchanges and then instituting chronic anti-autoimmune treatment with rituximab and a low dose of cortiosteroid. The patient showed remarkable improvement.

November 2017
Iris Eshed MD and Merav Lidar MD

Background: Magnetic resonance imaging (MRI) is the most sensitive imaging modality for the detection of sacroiliitis. Diagnosing sacroiliitis on MRI is not always straightforward and can be challenging in some cases.

Objectives: To evaluate the prevalence of alternative diagnoses suggested by MRI and characterize the MR appearance of the most common ones.

Methods: Consecutive MRI examinations of the sacroiliac joints (SIJ) performed between 2005 and 2012 were retrospectively evaluated for the presence of structural and active sacroiliitis findings according to the Assessment of SpondyloArthritis International Society guidelines. Alternative diagnoses, including degenerative changes, diffuse idiopathic skeletal hyperostosis (DISH), Osteitis condensans ilii (OCI), septic sacroiliitis/discitis, stress reaction as well as anatomic variants, were registered

Results: We evaluated 281 MRI examinations, 116 males, 165 females, average age 44 ± 15 years. Sacroiliitis was found in 71 examinations (25%) and alternative diagnoses were suggested in 87 (31%) (OCI 8.9%, anatomic variants 5.3%, septic sacroiliitis 5.3%, degenerative findings 4.3%, diffuse idiopathic skeletal hyperostosis [DISH] 1.5%, stress reaction 0.7%, tumor 0.3%). A normal examination was found in the remaining 123 examinations. Patients with alternative diagnoses were older than those with sacroiliitis (62 vs. 47 years of age, respectively, P > 0.05). Alternative pathologies in the SIJ were significantly more common in females (66) than males (21), P < 0.05.

Conclusions: A substantial proportion of patients with suspected sacroiliitis had normal SIJ while the rest were more commonly diagnosed with other pathologies. A referral by an experienced rheumatologist may improve the sensitivity and specificity of this important examination.

Talia Levy, Salim Bader, Kay-Geert Hermann MD, Gal Yaniv MD, Gahl Grinberg MD, Oshry Mozes MD, Merav Lidar MD and Iris Eshed MD

Background: Enthesopathy may lead to calcification of the stylohyoid ligament and can cause elongation of the styloid process (SP).

Objectives: To evaluate whether SP elongation is associated with two common enthesitis-related diseases: ankylosing spondylitis (AS) and diffuse idiopathic skeletal hyperostosis (DISH).

Methods: Cervical spine computed tomography (CT) examinations of patients with DISH (n=64, Resnick criteria), AS (n=24, New York criteria) and a controls (no radiological signs of DISH or AS, n=54) were retrospectively evaluated. The DISH group was further divided into patients with and without cervical DISH. The length of right and left SP was measured independently by two readers on coronal and sagittal curved reformats. The average right and left styloid length and average length per person were compared among the groups.

Results: Demographic characteristics were similar between the DISH and control groups (average age 68.2 ± 15.7, 69.2 ± 12.7 years, male:female ratio 48:16 and 35:19, respectively, P > 0.05), whereas age was significantly lower (average age: 53 ± 15 years, P < 0.0001) in the AS group, which was also composed mainly of men. The AS and DISH groups had significantly longer SP compared to controls (AS 37.9 ± 9.6 mm, DISH 34.4 ± 9 mm, control 30.3 ± 10.1 mm, P < 0.05). There was no correlation between age and SP length. Inter-reader reliability of SP measurements was excellent in all groups (ICC = 0.998, P < 0.0001).

Conclusions: SP elongation is associated with both AS and DISH substantiating the enthesopathy-related pathophysiology of this finding.

Einat Slonimsky MD, Tammar Kushnir PhD, Assaf Kadar MD, Aharon Menahem MD, Alon Grundshtein MD, Steven Velekes MD, Merav Lidar MD, Shmuel Dekel MD and Iris Eshed MD

Background: Metal-on-metal total hip prostheses (MoM-THR) have been shown to produce hypersensitivity reactions and fluid collection (pseudotumor) by the hip as well as high blood metal ions levels (BMILs).

Objectives: To evaluate the magnetic resonance imaging (MRI) signal-to-noise ratio (S/N) in selected body tissues around the hip of patients who underwent MoM hip replacement and to correlate to BMILs.

Methods: Sixty-one MRI hip examinations in 54 post-MoM-THR patients (18 males, 36 females, mean age 65 years) were retrospectively evaluated independently by two readers. The mean S/N ratio in a region of interest was calculated for periprosthetic pseudotumor collection (PPC), the bladder, fat, and muscle on axial T1w, FSE-T2w, and short tau inversion recovery (STIR) sequences on the same location. BMILs were retrieved from patient files.

Results: PPC was detected in 32 patients (52%) with an average volume of 82.48 mm3. BMIL did not correlate with the presence of PPCs but positively correlated with the PPC's volume. A trend for positive correlation was found between BMILs and S/N levels of STIR images for muscle and bladder as well as for PPC and cobalt levels. A trend for correlation was also seen between BMIL with PPC's T1 w S/N.

Conclusions: Alteration of MRI S/N for different hip tissues showed a tendency for correlation with BMILs, possibly suggesting that metal deposition occurs in the PPC as well as in the surrounding tissues and bladder.

Tima Davidson MD, Amit Druyan MD, Elinor Goshen MD and Merav Lidar MD

Background: Facial rejuvenation using different dermal and sub-dermal injectable compounds is a popular cosmetic procedure which may pose a diagnostic dilemma to the radiologist.

Objectives: To describe the appearance of cosmetic facial fillers on PET-CT.

Methods: All PET-CT exams performed between January 2015 and May 2017 in which findings suggestive of prior facial filler procedures was evident and where anamnestic confirmation with the patient was possible were reviewed.

Results: We describe five females who had undergone facial filler procedures leading to calcifications around the mouth and nasolabial triangle.

Conclusions: Familiarity with the appearance of such cosmetic procedures on PET-CT is of paramount importance in order to avoid misinterpretation of the findings leading to unnecessary apprehension and work-up.

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