Israel Medical Association Journal

Background: Point-of-care ultrasound (POCUS) is becoming a common tool for routine use in emergency medicine, anesthesiology and intensive care for diagnostic and interventional purposes. When a portable ultrasound device became available for the department of Pediatric and Adolescent Surgery at the Schneider's Children Medical Center of Israel, we added POCUS assessments to the physician's daily rounds. POCUS is performed by pediatric surgeons trained in basic ultrasonography skills. Starting September 2015 all POCUS examinations were documented. 

Objectives: To describe the current use, diagnostic and therapeutic impacts of POCUS in a department of pediatric and adolescent surgery. 

Methods: We conducted an observational study of all the documented POCUS procedures performed during a half-year period. Data regarding patient condition and the POCUS procedures were collected, as well as data on the use of other diagnostic modalities, mainly formal ultrasound exams (by radiologists) and computed tomography scans and their correlation with the POCUS assessment. 

Results: Fifty-one POCUS exams were performed during the study period, most of which served to define the presence and resolution of a collection – intraabdominal (34%) and subcutaneous (31%). Despite a high rate for formal diagnostic studies (65%), probably due to a relative lack of confidence of surgeons performing the POCUS exams during this initial period, most results (92%) were compatible. 

Conclusions: The ability and availability to perform multiple POCUS exams by the attending physician proved to be a valuable aide to the classical physical and laboratory examinations of surgical patients, and we predict its increasing use in quotidian practice. 

Despite the very high benefit-to-risk ratio of vaccines, the fear of negative side effects has discouraged many people from getting vaccinated, resulting in the reemergence of previously controlled diseases such as measles, pertussis and diphtheria. This fear has been amplified more recently by multiple epidemiologic studies that confirmed the link of an AS03-adjuvanted pandemic influenza vaccine (Pandemrix®, GlaxoSmithKline Biologicals, Germany) used in Europe during the 2009 H1N1 influenza pandemic [A(H1N1)pdm09] with the development of narcolepsy, a chronic sleep disorder, in children and adolescents. However, public misperceptions of what adjuvants are and why they are used in vaccines has created in some individuals a closed “black box” attitude towards all vaccines. The focus of this review article is to revisit this “black box” using the example of narcolepsy associated with the European AS03-adjuvanted pandemic influenza vaccine.

Objectives: To describe a single-center experience with fenestrated and branched endografts for the treatment of complex aortic aneurysms.

Methods: We reviewed all cases of complex aortic aneurysms treated with branched or fenestrated devices in our center. Data collected included device specifics, perioperative morbidity and mortality, re-intervention rates and mid-term results.

Results: Between 2007 and 2012 nine patients were treated with branched and fenestrated stent grafts. Mean age was 73 years. Mean aneurysm size was 63 mm. Perioperative mortality was 22% (2/9). During the follow-up, re-interventions were required in 3 patients (33%). Of 34 visceral artery branches 33 remained patent, resulting in a patency rate of 97%. Sac expansion was seen in a single patient due to a large endoleak. No late aneurysm- related deaths occurred.

Conclusions: Branched and fenestrated stent grafts are feasible and relatively safe alternatives for the treatment of complex aortic aneurysms involving the visceral segment. Further research is needed to determine the long-term durability of this new technology. 

Objectives: To assess the results of endovascular revascularization for lower extremity ischemia in dialysis patients.

Methods: We conducted a retrospective review of all dialysis patients who underwent endovascular treatment for critical limb ischemia (CLI) in our institution between 2007 and 2011. Data collected included comorbidities, clinical presentation, anatomic distribution of vascular lesions, amputation and survival rates.

Results: We identified 50 limbs (41 patients). Indications included: gangrene in 22%, non-healing wounds in 45%, rest pain in 31%, and debilitating claudication in 4%. Mean follow-up was 12 months (1–51 months). Nineteen patients required amputations. Freedom from amputation at 5 years was 40%. Factors associated with amputation included non-healing wounds or gangrene (68% and 36% respectively) and diabetes (P < 0.05). The survival rate was 80% after 5 years.

Conclusions:  Despite improvement in endovascular techniques for lower extremity revascularization, the incidence of limb salvage among dialysis patients remains poor, resulting in a high rate of major amputations. 

Background: The effectiveness of intensive versus standard physical therapy for motor progress in children with cerebral palsy is controversial. Sitting acquisition is considered an important developmental milestone.  

Objectives: To assess the acquisition of sitting and gross motor progress in infants with cerebral palsy treated with intermittent intensive physical therapy as compared to a matched group treated with a standard physical therapy regimen.

Methods: We conducted a randomized controlled crossover study in 10 infants aged 12–22 months with cerebral palsy; 5 were assigned to the intensive intermittent therapy group and 5 to the control group. After 4 weeks of baseline intervention, the intervention program was administered to the experimental group for 8 weeks and the regularly scheduled weekly program to the comparison group, targeting sitting as the treatment goal. Thereafter the comparison group crossed over. The Gross Motor Function Measure 66 and 88 (GMFM 66 and 88) were used at 4 week intervals.

Results: The intermittent intensive regimen yielded a mean improvement of 7.8% and 1.2% in the two groups respectively. However, these results were attributed to infants with a low functional level only (P < 0.01).

Conclusions: Goal-directed intensive intermittent regimen could possibly be beneficial in infants with a low functional level.
 

Background: The rate of brain abnormalities in asymptomatic term neonates varies substantially in previous studies. Some of these rates may justify general screening of healthy newborns by head ultrasound.

Objectives: To assess the incidence of intracranial abnormalities among asymptomatic term newborns with HUS[1] and to detect high-risk populations that might need such screening.

Methods: This was a prospective study in 493 term newborns who underwent HUS and a neurological evaluation during the first 3 days of life. The neurological examination results were unknown to the sonographist and the examiner was blinded to the HUS findings. The abnormal HUS findings were classified as significant or non-significant according to the current literature.

Results: Abnormal HUS was found in 11.2% of the neonates. Significant findings were noted in 3.8% of the infants. There was no association between non-structural HUS findings (hemorrhage or echogenicity) and mode of delivery. There was no relationship between any HUS abnormality and birth weight, head circumference and maternal age, ethnicity, education or morbidity. The rate of abnormal neurological, hearing or vision evaluation in infants with a significant abnormal HUS (5.2%) was comparable to the rate in infants with normal or non-significant findings on HUS (3.1%).

Conclusions: There is no indication for routine HUS screening in apparently healthy term neonates due to the relatively low incidence of significant brain abnormalities in these infants in our population.

Background: Skin basal and squamous cell carcinomas together account for over half of all newly diagnosed cancer cases. Frozen  section control of surgical margins is often required in the head and neck region. A paraffin permanent section does not always confirm the results of a frozen section.

Objectives: To test the diagnostic accuracy of frozen section histopathological analysis in determining the free margins of excised tumors.

Methods: This was a retrospective study of 169 cutaneous basal and squamous cell carcinomas excised with surgical margins diagnosed by frozen section and confirmed by permanent paraffin sections. The data included patients' age, gender, clinical and histopathological diagnosis, as well as characteristics of the lesions.

Results: There were 149 (88%) basal cell carcinomas and 20 (12%) squamous cell carcinomas. False negative margins were found in 19 cases (11.2%) and false positive margins in 11 cases (6.6%). We did not find any correlation between false positive or false negative margins and patients' age, gender, tumor size, tumor location, or the presence of sun-damaged skin. A significantly lower rate of false negative results was found in the residual tumor group.

Conclusions: Our findings show support the use of frozen section margin control in selected patients suffering from non-melanoma skin cancer of the head and neck.
 

Background: Phototherapy is considered the standard of care for neonatal jaundice. However, its short term cardiorespiratory effects have not been studied thoroughly.

Objectives: To assess the cardiorespiratory effect of phototherapy during sleep in term infants with physiologic jaundice.

Methods: We performed two polysomnography studies during 3 hours sleep in 10 healthy term infants with physiologic jaundice; each infant served as his/her own control. The first study was performed just prior to phototherapy and the second study during phototherapy 24 hours later. Heart and respiratory rates, type and duration of apneas, and arterial oxygen saturation were analyzed during active and quiet sleep.

Results: Term infants (gestational age 38.6 ± 1.4 weeks, birth weight 3.2 ± 0.5 kg) underwent the two polysomnography studies within a short time interval and had a comparable bilrubin level (3.6 ± 0.8 and 4.5 ± 0.8 days; 14.5 ± 1.4 and 13.8 ± 2.1 mg/dl, P = NS, respectively). There was no difference in sleeping time or the fraction of active and quiet sleep before or during phototherapy. During active sleep under phototherapy there was a significant decrease in respiratory rate and increase in heart rate (54.3 ± 10.3 vs. 49.1 ± 10.8 breaths/minute, and 125.9 ± 11.7 vs. 129.7 ± 15.3 beats/minute, respectively, P < 0.05), as well as a decrease in respiratory effort in response to apnea. These effects were not found during quiet sleep. Phototherapy had no significant effect on oxygen saturation, apnea rate or periodic breathing in either sleep state. No clinical significant apnea or bradycardia occurred.

Conclusions: Phototherapy affected the cardiorespiratory activity during active sleep but not during quiet sleep in term infants with physiologic jaundice. These effects do not seem to have clinical significance in "real-life" conditions.

Ghrelin, a 28 amino acid acylated peptide predominantly produced by the stomach, displays strong growth hormone-releasing activity mediated by the hypothalamus-pituitary GH[1] secretagogue receptors that were found to be specific for a family of synthetic, orally active GH secretagogues. The discovery of ghrelin brings us to a new understanding of the regulation of GH secretion. However, ghrelin is much more than simply a natural GH secretagogue. It also acts on other central and peripheral receptors and exhibits other actions, including stimulation of lactotroph and corticotroph secretion, orexigenia, influences gastroenteropancreatic functions, and has metabolic, cardiovascular and anti-proliferative effects. Knowledge of the whole spectrum of biologic activities of this new hormone will provide new understanding of some critical aspects of neuroscience, metabolism and internal medicine. In fact, GHS[2] were born more than 20 years ago as synthetic molecules, eliciting the hope that orally active GHS could be used to treat GH deficiency as an alternative to recombinant human GH. However, the dream did not become reality and the usefulness of GHS as an anabolic anti-aging intervention restoring the GH/IGF-I[3] axis in somatopause is still unclear. Instead, we now face the theoretic possibility that GHS analogues acting as agonists or antagonists could become candidate drugs for the treatment of pathophysiologic conditions in internal medicine totally unrelated to disorders of GH secretion.