Israel Medical Association Journal

Background: Lumbar spinal stenosis (LSS) is a narrowing of the lumbar canal causing lower back pain, gluteal pain, and neurogenic claudication. LSS has been associated with cardiovascular co-morbidities. Metabolic syndrome (MetS), a pro-inflammatory condition involving a cluster of risk factors for cardiovascular disease and diabetes, is increasingly prevalent worldwide.

Objectives: To evaluate the prevalence of MetS in patients with LSS, compared to age- and sex-matched healthy controls, and to explore potential associations between MetS and LSS-related clinical parameters and cardiovascular risk factors.

Methods: We conducted a cross-sectional study including 64 patients diagnosed as symptomatic LSS (NASS criteria) and 32 controls. MetS was diagnosed using the 2009 Harmonizing criteria adjusted for South Americans. Multivariate logistic regression was used to identify independent risk factors for MetS. The level of statistical significance was set at 5%.

Results: The prevalence of MetS was significantly higher in the LSS group than in the control group (76.6% vs. 31.3%; P < 0.001). LSS patients displayed greater waist circumference (P = 0.003), blood glucose levels (P = 0.009) and arterial pressure (P < 0.001) than controls. The variables with independent influence on MetS in the logistic regression model were: diabetes (P = 0.008), blood glucose (P = 0.004), and body mass index (P = 0.005).

Conclusions: MetS was significantly more prevalent among LSS patients, and diabetes and elevated body mass index were found to be risk factors for MetS in these LSS patients

Background: Evaluation of children's anthropometrics poses challenges due to age-related changes. The main focus is on height and weight. However, since weight is height-dependent, body mass index (BMI) is the best surrogate measurement of adiposity. Israel has not developed national growth tables; therefore, researchers and clinicians utilize either World Health Organization (WHO) or U.S. Centers for Disease Control and Prevention (CDC) tables as benchmarks.

Objectives: To evaluate the anthropometrics of Israeli children benchmarked by CDC and WHO tables.

Methods: A retrospective review was conducted of the 1987–2003 birth cohort (age 4–18 years) from Clalit Health Services databases. Anthropometrics were retrieved twice: at study entry and one year later. We evaluated them as separate cohorts. Gender-specific age-matched median height and BMI were compared with CDC and WHO height and BMI tables.

Results: The study consisted of 15,650, mean age at study entry 9.5 years (range 4–18). Gender-specific median heights of the Israeli children were similar to CDC and WHO values at younger ages, but were slightly shorter than the age-matched CDC and WHO toward the age of final height in both cohorts. However, gender-specific median BMI was considerably and statistically significant higher compared to CDC and WHO values consistently along the entire age range in both cohorts.

Conclusions: Israeli children were slightly shorter toward the age of final height, compared to WHO and CDC. However, BMI in Israeli children was significantly higher compared to the CDC and WHO consistently along the age range, which raises an alarm regarding obesity patterns

Background: The effect of weight reduction following bariatric surgery is already well known.

Objectives: To investigate the effects of abdominoplasty on metabolic markers indicative of weight loss.

Methods: The authors prospectively enrolled consecutive obese patients after laparoscopic sleeve gastrectomy. They were candidates for post-bariatric surgery abdominoplasty. The authors measured metabolic markers one day prior to surgery, 24 hours after, and 3 months following surgery. They recorded medical and demographic parameters.

Results: Sixteen patients were recruited for participation in the study. Mean age was 47 years and 88% of the patients were female. Bariatric surgery achieved a mean decline in body mass index of 13.8 kg/m². All patients underwent abdominoplasty. Leptin and insulin levels were slightly increased at 3 months postoperative. No significant changes were observed in glucose, hemoglobin, or triglycerides throughout the study.

Conclusions: In a cohort of obese patients undergoing laparoscopic sleeve gastrectomy followed by abdominoplasty, no significant changes were noted in a patient’s metabolic profiles. The results suggest that abdominoplasty has no effect on the metabolic markers tested in contrast to other reports; however, the cosmetic, behavioral, and psychological advantages of abdominoplasty are well established.

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by the progressive death of motor neurons leading to fatal paralysis. The causes of ALS remain unknown; however, evidence supports the presence of autoimmune mechanisms contributing to pathogenesis. Although several environmental factors have been proposed, the only established risk factors are older age, male gender, and a family history of ALS. To date, there are no diagnostic test for ALS, and clinicians rely on the combination of upper motor neuron and lower motor neuron signs in the same body region. The aim of this paper was to provide a comprehensive review of current clinical literature with special focus on the role of autoimmunity in ALS, differential diagnosis, and available therapeutic approaches. Current evidence suggests a contribution of the innate immune system in ALS, with a role of microglial cell activation at the sites of neurodegeneration. The median time from symptom onset to diagnosis of ALS is 14 months, and this time estimate is mainly based on specific clinical signs and exclusion of ALS-like conditions. Several therapeutic approaches have been proposed, including immunosuppressive drugs, to reduce disease progression. Riluzole has been established as the only, although modestly effective, disease modifying therapy, extending mean patient survival by 3to 6 months. Recent advances in understanding the pathophysiology mechanisms of ALS encourage realistic hope for new treatment approaches. To date, the cornerstones of the management of patients with ALS are focused on symptom control, maintaining quality of life and improving survival.

Background: Correct diagnosis of cardiac masses is a challenge in clinical practice. Accurate identification and differentiation between cardiac thrombi and tumors is crucial because prognosis and appropriate clinical management vary substantially.

Objectives: To evaluate the diagnostic performances of cardiac magnetic resonance imaging (CMR) in differentiating between cardiac thrombi and tumors.

Methods: A retrospective review of a prospectively maintained database of all CMR scans was performed to distinguish between cardiac thrombi and tumors during a 10 year period in a single academic referral center (2004–2013). Cases with an available standard of reference for a definite diagnosis were included. Correlation of CMR differentiation between thrombi and tumors with an available standard of reference was performed. Sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV), and accuracy were reported.

Results: In this study, 101 consecutive patients underwent CMR for suspicious cardiac masses documented on transthoracic or transesophageal echocardiography. CMR did not detect any cardiac pathology in 17% (17/101), including detection of anatomical variants and benign findings in 18% (15/84). Of the remaining 69 patients, CMR diagnosis was correlated with histopathologic result in 74% (51/69), imaging follow-up in 22% (15/69), and a definite CMR diagnosis (lipoma) in 4% (3/69). For tumors, diagnostic accuracy, sensitivity, specificity, PPV, and NPV were 96.6%, 98%, 86.6%, 96.2%, and 96.6%, respectively. For thrombi, the results were 93.6%, 86.7%, 98.04%, 92.9%, and 97%, respectively.

Conclusions: CMR is highly accurate in differentiating cardiac thrombi from tumors and should be included in the routine evaluation of cardiac masses.

Background: Abnormal gestational weight gain (GWG) has been associated with adverse outcomes for mothers and their offspring.

Objectives: To compare the achievement of recommended GWG and lifestyle factors in women with high-risk versus normal-risk pregnancies.

Methods: Pregnant women hospitalized in a gynecological and obstetrics department and pregnant women who arrived at a community clinic for a routine checkup were interviewed and completed questionnaires relating to weight gain and lifestyle factors (e.g., smoking, diet, exercise). Recommended GWG was defined by the American Congress of Obstetricians and Gynecologists (ACOG).

Results: GWG higher than ACOG recommendations was reported by 52/92 women (57%) with normal pregnancies and by 43/86 (50%) with high-risk pregnancies. On univariate analysis, characteristics associated with greater GWG were: current or past smoking, age > 40 years, pre-gestational body mass index (BMI) > 25 kg/m², low fruit intake, and high snack intake. High-risk pregnancies were associated with pre-gestational BMI > 25 kg/m² (48% vs. 27%, P = 0.012), consumption of vitamins (84% vs. 63%, P = 0.001), avoidance of certain foods (54% vs. 21%, P = 0.015), receiving professional nutritionist consultation (65% vs. 11%, P = 0.001), and less physical activity (9% vs. 24%, P = 0.01).

Conclusions: A minority of pregnant women met the recommended GWG. No difference was noted between normal and high-risk pregnancies. High-risk population tended to have a less healthy lifestyle. Counseling to follow a healthy, balanced diet should be recommended, regardless of pregnancy risk, with particular attention to women at high risk of extra weight gain.

Background: Children and adolescents are commonly referred to an orthopedic surgeon to assess knee malalignment.

Objectives: To assess the prevalence of genu varum and valgum among adolescents, and to identify correlates of these conditions.

Methods: A medical database of 47,588 candidates for military service presenting to the northern recruitment center during an 11 year period was analyzed to identify clinical knee alignment. Based on the standing skin surface intercondylar distance (ICD) or intermalleolar distance (IMD), the prevalence rates of genu varum (ICD ≥ 3 cm) and genu valgum (IMD ≥ 4 cm) were calculated. The association of gender, body mass index (BMI), and place of residence to knee alignment was studied.

Results: The rates of genu varum and valgum were 11.4% (5427) and 5.6% (2639), respectively. Genu varum was significantly more prevalent among males than females (16.2% vs. 4.4%, P < 0.001). It was also more prevalent among underweight subjects and less prevalent among overweight and obese subjects (P < 0.001). Genu valgum was significantly more prevalent among females than males (9.4% vs. 2.9%) and in overweight and obese subjects compared to those with normal BMI, while less prevalent in underweight subjects (P < 0.001). Multivariate analysis revealed that genu varum was independently positively associated with male gender, underweight, and living in a rural area. Genu valgum was independently positively associated with female gender, overweight, and obesity.

Conclusions: This study establishes a modern benchmark for the cutoff and prevalence of genu varum and valgum as well as associations with gender and BMI.

Background: Physical inactivity is a pivotal factor in the development and progression of various chronic diseases. However, most fitness facilities exclude unhealthy individuals. Therefore, an exercise program that admits such patients is imperative.

Objectives: To evaluate the effectiveness of a fitness facility that admits adult subjects with multiple chronic diseases.

Methods: We conducted a retrospective screening of patient records from the Medical Fitness Facility at Meir Medical Center, Israel. Intake of subjects was done by a multidisciplinary team. For each individual, personalized diet and exercise plans were developed and patients attended the facility twice a week. Each participant was evaluated at enrolment and after 4 months for well-being, metabolic parameters, exercise capacity, and laboratory blood tests.

Results: A total of 838 individuals were enrolled, mean age 57 years. Their medical conditions included dyslipidemia (48.8%), hypertension (37.6%), and diabetes mellitus (24.9%), followed by musculoskeletal problems (arthropathy 19%, lower back pain 16.1%) and ischemic heart disease (13.4%). Less common diagnoses were vascular diseases, pulmonary diseases, and malignancy. Only 40.5% of participants adhered to the regimen with advanced age being the best predictor for adherence. At the follow-up visit, body mass index was lower (31.2 vs. 30.2 kg/m², P <0.0001), exercise capacity increased (measured as maximal MET; 7.1 vs. 8.1, P < 0.0001), and well-being improved (measured by Short Form Survey [SF-36]; 69.3 vs. 76.0, P <0.0001).

Conclusions: We show that a fitness program for patients with multiple chronic diseases is feasible and effective in improving prognostic parameters, albeit significantly challenged by adherence limitations.

Background: Fine-needle aspiration cytology (FNAC) is used to provide rapid diagnostic information regarding masses of the head and neck. To achieve good results, adequate training is essential.

Objectives: To evaluate the efficacy of FNAC in the diagnosis of head and neck masses performed by residents and attending physicians.

Methods: Palpable guided FNA biopsies from 166 consecutive patients with head and neck masses, excluding thyroid, who were treated in our department between 2008 and 2010 were retrospectively reviewed. Accuracy, sensitivity, specificity, and positive and negative predictive values were calculated.

Results: A total of 193 FNACs were performed in 161 patients (5 patients were excluded due to age under 18). Mean age was 57.3 years; female to male ratio was approximately 5:4. Most FNACs were performed in masses in the parotid gland (37.3%), 14.5% in the posterior neck, 19.1% in the lateral neck, 15% at level 1, and 9.3% at level 6. The median size of the masses aspirated was 2 cm. Most FNACs were performed by an experienced physician (2.5:1). About 25% of the patients required a second FNAC. Almost 70% of FNACs were diagnostic. Of these, 71.2% were of benign processes and 28.8% of malignancies.

Conclusions: An FNAC of a palpable mass in all sites of the neck, excluding the thyroid, can be done as an office procedure with reasonable results without imaging guidance. About 25% of patients will require another biopsy. The procedure is not difficult to master, as evident by the fact that there were no differences in the results of FNACs performed by an attending otolaryngologist or a resident.

 

Background: Successful neuraxial block performance relies on assessment and palpation of surface landmarks, potentially challenging in patients with high body mass index (BMI). 

Objectives: To evaluate the use of ultrasound-assisted neuraxial bock in a non-obstetric population with BMI above versus below 30 kg/m2.

Methods: Healthy adult patients undergoing extracorporeal shock wave lithotripsy (ESWL) under neuraxial block were observed in this quality assurance study. Prior to the neuraxial block, an ultrasound examination was performed to identify the puncture site. Neuraxial anesthesia block was performed under aseptic surgical conditions with the patient in the sitting position. Following block placement, external landmarks were palpated. Our primary study outcome was the number of attempts (skin insertions with the needle) after pre-puncture ultrasound identification of the insertion point, comparing patients with BMI above versus below 30 kg/m2. Our secondary outcome was assessment by palpation of external anatomical landmarks.

Results: Our study group included 63 consecutive patients undergoing neuraxial block for ESWL. Data were assessed according to BMI (above versus below 30 kg/m2). An overall success rate at the first attempt of 90.5% (CI 0.8–0.95) was achieved using ultrasound-guided neuraxial block. This block placement success rate was similar for all patients, regardless of BMI above versus below 30 kg/m2. In contrast, the ease of palpation of anatomic landmarks, P = 0.001, and the ease of palpation of iliac crest, P < 0.001, differed significantly between the patients above versus below 30 kg/m2. The reported verbal pain scores (VPS) due to block insertion was similar among all patients regardless of BMI category (above versus below 30 kg/m2).

Conclusions: We observed high success rates when ultrasound-assisted neuraxial block is performed, regardless of BMI above versus below 30 kg/m2, despite expected differences in surface landmark palpation.