Israel Medical Association Journal

Background: New animal models provide insights into the pathogenesis of different types of inflammatory bowel disease as well as novel pathways for new therapeutic options. However, the scarcity of large animal models hinders the research and development of new surgical procedures and technological devices in inflammatory bowel disease surgery. Common small animal inducible models involve chemical agents that result in the development of acute intestinal inflammation.

Objectives: To assess a novel method for the induction of Crohn’s-like colitis using intramural injection of sclerosants in a porcine model.

Methods: Seven domestic pigs underwent several experimental protocols to assess the efficacy of intramural colonic injections of two different compounds (lauromacrogol, and phenol in almond oil). Twenty-five different large bowel segments were treated with intramural injections of the compounds. The animals were followed for 6 weeks, and treated colonic segments were resected for histopathological examination.

Results: Intramural injection of lauromacrogol resulted in non-specific, mild reactive foreign body changes only. Injection of various dosages of 5% phenol in almond oil caused a range of histopathological changes varying from focal fibrosis to Crohn’s-like reactions comprising acute and chronic infiltrates, mucosal ulceration and focal necrosis with enteric and lymphoid non-caseating granulomas.

Conclusions: Intramural colonic phenol in almond oil injection in pigs induces inflammatory reactions that histologically resemble Crohn's disease in humans. 

Background: The prevalence of heart failure (HF) is increasing rapidly with high readmission rates, mainly due to fluid retention. Ultrafiltration (UF) is a mechanical method for removing fluids. Introduced only recently in Israel, the skill and experience required for outpatient congested HF patients are scarce.

Objectives: To evaluate the feasibility and safety of UF therapy in congested HF patients in outpatient clinics under a strict protocol of monitoring and therapy that we developed.

Methods: Between April and September 2013 we applied UF in our outpatient clinic to seven chronically congested HF patients with NYHA III-IV who did not respond adequately to diuretics. We administered a total of 38 courses.

Results: On average, 1982 ml fluid per course was removed without significant adverse events and with patients' subjective feeling of improvement. Only two courses were interrupted prematurely due to mechanical problems but were completed without harm to the patients.

Conclusions: Under appropriate professional medical supervision, UF therapy in an outpatient setting is a safe and effective procedure and serves as an additional tool for managing congested HF patients who do not respond adequately to diuretics.

Background: Congenital hepatic hilar cysts are rare. Some are simple and do not require intervention, but some biliary cystic malformations impose the risk of morbidity and mortality. Objectives: To assess a series of five patients presenting with congenital hepatic hilar cysts. 

Methods: We retrospectively reviewed all cases presenting to our pediatric surgical service between January 2010 and December 2012 and found to have a congenital hepatic hilar cyst. Data regarding clinical, radiological, operative and pathological features were analyzed.

Results: Five children with congenital cyst of the hepatic hilum were identified; four of them were diagnosed prenatally. Four children had undergone surgical intervention: one with intrahepatic choledochal cyst, one with epidermoid cyst, and two with biliary atresia and an associated cyst of the common bile duct. In another case of choledochal cyst the treatment was conservative. All children except one had a good prognosis; one child with biliary atresia required liver transplantation.

Conclusions: The differential diagnosis of congenital hepatic hilar cyst includes a broad spectrum of pathologies. It is essential to diagnose biliary atresia as early as possible. Signs such as smaller cysts in association with a hypoplastic gallbladder and direct hyperbilirubinemia may be suggestive of biliary atresia.

We are overwhelmed by warnings about inevitable geophysical and human problems. Earth is beset by escalating, man-made, environmental crises and our exploding population will eventually lack water, food and vital materials. This suggests, together with increasing poverty, deepening social unrest and advanced techniques for mass killing, that civilization will break down long before atmospheric CO₂ or resistant microbes become catastrophic. Despite intensive searching, life has not been found in space, even though thousands of planets have been found and life there may be as problematic and unpredictable as on Earth. The human brain is already a 'universe', with 85 billion neurons and a hundred trillion synapses, more than the stars in our galaxy. Understanding consciousness, the brain, its aging and pathologies, and eliminating the propensity for human aggression are urgent challenges. During 1958–2012, NASA spent $800 billion. In contrast, the annual cost of brain disease in the U.S. is $600 billion, more than cardiovascular disease and cancer combined. We suggest that a massive switching of financial and human resources is required to explore the full potential of the human brain. Visiting Mars can wait. We further propose a novel two-brain hypothesis: the animal 'brain' evolved as two fundamentally different though interdependent, complementary organs: one electroionic (tangible, known and accessible), and the other, electromagnetic (intangible and difficult to access) – a relatively independent, stable, structured and functional 3D compendium of variously induced interacting EM fields.

Background: A clavicular fracture accounts for 2.6%–5% of adult fractures. Fractures in the middle-third (OTA 15-B) represent 69%–82% of all clavicular fractures. There is no consensus among orthopedic surgeons regarding treatment for these fractures; many support conservative treatment even for displaced middle-third clavicular fractures, while others choose operative treatment.

Objectives: To assess the attitudes of orthopedic surgeons regarding treatment of displaced mid-shaft clavicular fractures.

Methods: We conducted a survey in which we interviewed orthopedic surgeons from various countries during the 2012 EFORT meeting in Berlin. The questionnaire included an X-ray of a displaced middle-third clavicular fracture, as well as questions regarding the surgeon’s proposed treatment plan.

Results: A total of 177 orthopedic surgeons completed the questionnaire; 49% preferred operative treatment for a displaced middle-third clavicular fracture. Among the orthopedic trauma specialists, 58% suggested operative treatment, as did 82% of shoulder specialists. Most surgeons preferred a locking plate for fixation.

Conclusions: The treatment approach for a displaced middle-third clavicular fracture seems to be evenly split between conservative and operative approaches. The tendency toward operative treatment was even more remarkable among orthopedic trauma specialists and shoulder specialists who completed the questionnaire. Most surgeons prefer a locking plate as a fixation system for this type of fracture. 

Background: The Syntax score (SS) is a helpful tool for determining the optimal revascularization strategy regarding coronary artery bypass surgery (CABG) vs. percutaneous coronary intervention (PCI) in patients with complex coronary disease. While an association between higher SS and mortality was found for PCI patients, no such association was found for CABG patients.

Objectives: To assess whether the SS predicts late mortality in patients undergoing CABG in a real-world setting.

Methods: The study included 406 consecutive patients referred for CABG over a 2 year period. Baseline and clinical characteristics were collected. Angiographic data SS were interpreted by an experienced angiographer. Patients were divided into three groups based on SS tertiles: low ≤ 21 (n=205), intermediate 22–31 (n=138), and high ≥ 32 (n=63). Five year mortality was derived from the National Mortality Database.

Results: Compared with low SS, patients with intermediate and high scores were significantly older (P = 0.02), had lower left ventricular ejection fraction (64% vs. 52% and 48%, P < 0.001) and greater incidence of acute coronary syndrome, left main disease, presence of chronic total occlusion of the left anterior descending and/or right coronary artery, and a higher EuroSCORE (5% vs. 5% and 8%, P < 0.01). Patients with intermediate and high SS had higher 5 year mortality rates (18.1% and 19%, respectively) compared to patients with low score (9.8%, P = 0.04). On multivariate analysis, SS was not an independent predictor of late mortality.

Conclusion: Patients with lower SS had lower mortality after CABG, which is attributable to lower baseline risk. SS is not independently predictive of late mortality in patients with multi-vessel coronary artery disease undergoing CABG.