Shlomo Vinker, MD, Sasson Nakar, MD, Elliot Rosenberg, MD, MPH and Eliezer Kitai, MD
Background: Colorectal cancer is the second leading cause of cancer mortality in Israel. Unfortunately, compliance with annual fecal occult blood testing is very low.
Objective: To assess the effectiveness of interventions to increase FOBT screening in primary care clinics in Israel.
Methods: A prospective, randomized study included all 50–75 year old enrollees of six family physicians in two primary care clinics. The register of two physicians, one from each clinic, was allocated to one of three groups. Two FOBT reminder strategies were tested: a physician reminder (753 patients), and a patient reminder that was either a phone call (312 patients) or a letter (337 patients). The control group (913 patients) of physicians continued administering their regular level of care. The main outcome measure was the percentage of patients undergoing FOBT screening in each study arm at the conclusion of the one year study period.
Results: In the intervention groups 14.3% (201/1,402) were screened using the FOBT over the course of the study year. Using an intent-to-screen analysis, the screening rate in the physician and patient reminder groups was significantly higher than in the control group(16.5 and 11.9%,vs. 1.2% respectively, P < 0.0001). Phone reminders were significantly more efective as compared to letters (14.7 vs. 9.2%, P = 0.01).
Conclusions: Our study has shown the benefit of various FOBT reminder systems, especially those centered around the family physician. Further research should focus on this area, in conjunction with other novel approaches.
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FOBT = fecal occult blood testing
Eliezer Golan, MD, Bruria Tal, PhD, Yossef Dror, PhD, Ze’ev Korzets, MBBS, Yaffa Vered, PhD, Eliyahu Weiss, MSc and Jacques Bernheim, MD
Background: Multiple factors are involved in the pathogenesis of hypertension in the obese individual.
Objective: To evaluate the role of a decrease in sympathetically mediated thermogenesis and the effect of the correlation between the plasma leptin and daily urinary nitric oxide levels on obesity-related hypertension.
Methods: We evaluated three groups: 25 obese hypertensive patients (age 45.7±1.37 years, body mass index 34.2±1.35 kg/m2, systolic/diastolic blood pressure 155±2.9/105±1.3, mean arterial pressure 122±1.50 mmHg); 21 obese normotensive patients (age 39.6±1.72, BMI 31.3±0.76, SBP/DBP 124±2.1/85.4±1.8, MAP 98.2±1.80); and 17 lean normotensive subjects (age 38.1±2.16, BMI 22.1±0.28, SBP/DBP 117±1.7/76.8±1.5, MAP 90.1±1.50). We determined basal resting metabolic rates, plasma insulin (radioimmunoassay), norepinephrine (high performance liquid chromatography) in all subjects. Thereafter, 14 obese hypertensives underwent a weight reduction diet. At weeks 6 (n=14) and 14 (n=10) of the diet the above determinations were repeated. Plasma leptin (enzyme-linked immunosorbent assay) and UNOx (spectrophotometry) were assayed in 17 obese hypertensives and 17 obese normotensives, and in 19 obese hypertensives versus 11 obese normotensives, respectively.
Results: Obese hypertensive patients had significantly higher basal RMR and plasma NE levels. Insulin levels were lower in the lean group, with no difference between the hypertensive and normotensive obese groups. At weeks 6 and 14, BMI was significantly lower, as were insulin and NE levels. RMR decreased to values of normotensive subjects. MAP normalized but remained significantly higher than that of obese normotensives. Leptin blood levels and the leptin/UNOx ratio were significantly higher in the obese hypertensive compared to the obese normotensive patients. Both these parameters were strongly correlated to BMI, MAP5, RMR, and plasma NE and insulin .Obese hypertensive patients excreted less urinary NO metabolites. A strong correlation was found between MAP and the leptin/UNOx ratio.
Conclusions: A reduction of sympathetically mediated thermogenesis, as reflected by RMR, results in normalization of obesity-related hypertension. In contrast, insulin does not seem to play a major role in the pathogenesis of hypertension associated with obesity. Increased leptin levels in conjunction with decreased NO production in the presence of enhanced sympathetic activity may contribute to blood pressure elevation in the obese.
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BMI = body mass index
SBP/DBP = systolic blood pressure/diastolic blood pressure
MAP = mean arterial pressure
UNOx = urinary nitric oxide
RMR – resting metabolic rate
NE = norepinephrine
Gregory Kouraklis, MD, Andromachi Glinavou, MD, Dimitrios Mantas, MD, Efstratios Kouskos, MD and Gabriel Karatzas, MD
Background: Small bowel diverticula are usually asymptomatic and rare. Their importance is based on the fact that they carry the risk of serious complications.
Objective: To study the implications and the therapeutic approach regarding small bowel diverticulosis.
Methods: The medical records of 54 patients with diverticular disease of the small bowel, including Meckel’s and duodenum diverticula, were retrospectively reviewed. The mean age of the 32 male and 22 female patients was 53.2 years.
Results: Diverticula were found in the duodenum in 11 cases, in the jejunum and ileum in 21 cases, and with Meckel’s diverticula in 22 cases. In 24% of the patients the diverticula were multiple. The most common clinical symptom was abdominal pain, in 44.4%. Most of the duodenum diverticula were asymptomatic; 47.6% of the patients with diverticular disease located in the jejunum and ileum presented with chronic symptoms. The overall diagnostic rate for symptomatic diverticula before surgery was 52.7%; in 33.3% diverticula were found incidentally during other diagnostic or therapeutic procedures. Forty-one patients were managed surgically: 15 patients were operated on urgently because of infection or rupture, 4 patients for bleeding, 5 patients for intestinal obstruction and one patient for jaundice.
Conclusions: The incidence of asymptomatic small bowel diverticula is difficult to ascertain. Patients with Meckel’s and duodenal diverticula are usually asymptomatic, while the majority of jejunal and ileal diverticula patients present with chronic symptoms. The preoperative diagnostic rate is higher for duodenal diverticula. Small bowel diverticula do not require surgical treatment unless refractory symptoms or complications occur.
Yoav Mattan, MD, Alice Dimant, MD, Rami Mosheiff, MD, Amos Peyser, MD, Steven Mendelson, MD and Meir Liebergall, MD
Background: Femoral hip fractures are a common occurrence in the elderly. Of the various fracture patterns, intertrochanteric injuries have the lowest rate of complications. Case reports of ensuing subcapital fracture have all been linked to incorrect placement of fixation devices or to osteomyelitis, while cases of avascular necrosis have only been reported rarely in the literature and are considered to occur at the rare rate of 0.8%.
Objectives: To check the incidence and outcome of AVN in intertrochanteric hip fractures.
Methods and Results: In a retrospective analysis of patients who had surgical treatment for intertrochanteric fractures, 10 patients (0.5%) underwent dynamic hip screw fixation for intertrochanteric fractures and subsequently developed painful AVN as their primary presentation. Three of these patients were also found to have subcapital fractures. On revision of the primary fixation no fault was found with nail placement.
Conclusions: The reported rate of AVN may be understated since many patients have limiting factors that prevent them from consulting a physician when in pain, and one-third of these patients die within 2 years. Therefore, we suggest that hip pain following fixation of an intertrochanteric fracture should prompt the clinician to consider the rare possibility of AVN or subcapital fracture.
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AV = avascular necrosis
Naomi B. Zak, PhD, Sagiv Shifman, MSc, Anne Shalom, PhD and Ariel Darvasi, PhD, MPH
The complex genetic nature of many common diseases makes the identification of the genes that predispose to these ailments a difficult task. In this review we discuss the elements that contribute to the complexity of polygenic diseases and describe an experimental strategy for disease-related gene discovery that attempts to overcome these factors. This strategy involves a population-based case-control paradigm and makes use of a highly informative, homogeneous founder population, many of whose members presently reside in Israel. The properties of single nucleotide polymorphisms, which are presently the markers of choice, are discussed, and the technologies that are currently available for SNP genotyping are briefly presented.
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SNP = single nucleotide polymorphism
Ron Reshef, MD, Wisam Sbeit, MD and Jesse Lachter, MD
Gideon D. Charach, MD, Itamar Groskopf, MD, Dan Turner, MD, Michael Y. Barilan, MD, Chen Kugel, MD and Moshe S. Weintraub, MD
Yosefa Bar-Dayan, MD, MHA, Simon Ben-Zikrie, MD2, Gerald Fraser, MD, FRCP, Ziv Ben-Ari, MD, Marius Braun, MD, Mordechai Kremer, MD and Yaron Niv, MD
Oren Shibolet, MD, Olga Schatz, MD, Michal Krieger, MD, Alexander Maly, MD and Yoseph Caraco, MD
Jacob Bickels, MD, Yehuda Kollender, MD and Isaac Meller, MD