Israel Medical Association Journal

Background: Roux-en-Y gastric bypass is currently considered the gold standard surgical option for the treatment of morbid obesity. Open RYGB[1] is associated with a high risk of complications. Laparoscopic RYGB has been shown to reduce perioperative morbidity and improve recovery.

Objectives: To review our experience with laparoscopic RYGB during a 19 month period.

Methods: The data were collected prospectively. The study group comprised all patients who underwent laparoscopic RYGB for treatment of morbid obesity as their primary operation between February 2006 and July 2007. The reported outcome included surgical results, weight loss, and improved status of co-morbidities, with follow-up of up to 19 months.

Results: The mean age of the 50 patients was 36.7 years. Mean body mass index was 44.7 kg/m² (range 35–76 kg/m²); mean duration of surgery was 171 minutes. There was no conversion to open surgery. The mean length of stay was 4 days (range 2–7 days). Five patients (10%) developed a complication, but none of them required early reoperation and there were no deaths. Mean follow-up was 7 months (range 40 days–19 months). The excess body weight loss was 55% and 61% at 6 and 12 months respectively. Diabetes resolved completely or significantly improved in all five patients with this condition, as did hypertension in eight patients out of nine.

Conclusions: Laparoscopic RYGB is feasible and safe. The results in terms of weight loss and correction of co-morbidities are comparable to other previously published studies. However, only surgeons with experience in advanced laparoscopic as well as bariatric surgery should attempt this procedure.

Background: Balneotherapy is an established treatment modality for musculoskeletal disease. However, few studies have examined the efficacy of spa therapy in elderly patients with degenerative spine and joint diseases.

Objectives: To assess the effects of balneotherapy on chronic musculoskeletal pain, functional capacity, and quality of life in elderly patients with osteoarthritis of the knee or chronic low back pain.

Methods: A total of 81 patients enrolled and the results of 76 were analyzed. Subjects underwent a 1 day course of 30 minute daily baths in mineral water. Changes were evaluated in the following parameters:  pain intensity, functional capacity, quality of life, use of non-steroidal anti-inflammatory or analgesic drugs, subjective disease severity perceived by the patients, investigator-rated disease severity, and severity of pain perceived by the patients.

Results: Compared to baseline, all monitored parameters were significantly improved by balneotherapy in both investigated groups. Moreover, the favorable effect was prolonged for 3 months after treatment.

Conclusions: This study showed that balneotherapy is an effective treatment modality for elderly patients with osteoarthritis of the knee or with chronic low back pain, and its benefits last for at least 3 months after treatment.
 

Background: In contrast to the relative scarcity of donor kidneys and hearts, the potential supply of deceased donor pancreata is exceeding the demand. However, this potential organ surplus is not being fully realized because in current transplantation practice the duration of pancreas storage before transplantation is limited and many organs with established or anticipated cold ischemia time exceeding 8–10 hours are discarded owing to the extreme vulnerability of pancreatic tissue to anaerobic damage caused by preservation.

Objectives: To reduce cold ischemic injury in order to increase the utilization of donor pancreases in Israel for whole-organ and cell transplantation.

Methods: We evaluated a novel two-layer preservation oxygenated cold storage method that uses perfluorocarbon to continuously supply oxygen to the pancreas during preservation in conventional University of Wisconsin solution.

Results: Pancreatic tissue morphology, viability and adenosine-triphosphate content were serially examined during preservation of the pig pancreas for 24 hours either by a two-layer or by conventional simple cold storage. Already after 12 hours of storage, the superiority of the two-layer method over the University of Wisconsin method was apparent. Starting at this time point and continuing throughout the 24 hours of preservation, the tissue architecture, mitochondrial integrity, cellular viability and ATP[1] tissue concentration were improved in samples preserved in oxygenated UW[2]/PFC[3] as compared to controls stored in conventional UW solution alone.

Conclusions: The UW/PFC two-layer preservation method allowed tissue ATP synthesis and amelioration of cold ischemic tissue damage during extended 24 hour pancreas preservation. This method could be implemented in clinical practice to maximize utilization of pancreata for whole-organ and islet transplantation as well as for pancreas sharing with remote centers.

The completion of the human genome mapping project has provided the necessary backdrop for the development of high throughput array technologies. In contrast to the reductionist approach to studying the role of a particular molecule in a specific pathway, these technologies enable us to conduct a comprehensive survey of various molecular profiles across different cells types and individuals, placing us one step closer to understanding integrative regulatory networks and the workings of the cell as a whole.

Mesenchymal stromal cells are multipotent cells capable of tissue repair and immune modulation. They are primarily found in bone marrow, but are also present in other tissues of mesenchymal origin, such as fatty tissue, muscle, tendons, etc. MSC[1] can easily be obtained by bone marrow aspiration, showing a rapid expansion in vitro. New protocols enable cell culture without the use of animal-derived sera and artificial growth factors. Avascular necroses of the bone may have different causes. AVN[2] in autoimmune and hematological diseases show a strong association with corticosteroid treatment, which is often unavoidable in severe cases. Until recently, core decompression of the affected osseous area was the standard approach. Because of their differentiation properties, easy accessibility and proliferative capacity, autologous MSCs could potentially complement AVN treatment by adding fresh “osteogenic cells” to the healing process.

Background: Diseases causing increased pulmonary pressure will subsequently cause a dilation of the pulmonary arteries and right heart chambers.

Objectives: To assess the capability of computed tomography angiography and high resolution CT to diagnose and estimate the severity of pulmonary arterial hypertension as compared with standard means of right heart catheterization, echocardiography and pulmonary function tests.

Methods: The study included 38 patients with PHT[1] who underwent CT angiography and HRCT[2] as part of their routine evaluation. Diagnose included: primary PHT (n=20), Eisenmenger syndrome (n=6), scleroderma (n=3), thromboembolic disease (n=3), and others (n=6). Mean pulmonary artery pressure was 58 mmHg (range 39–92 mmHg) by catheterization and peak systolic pressure 79 mmHg (range 40–135) by echocardiography. Findings for the diameters of the main pulmonary artery and its main branches, the ascending aorta, the right atria and ventricle as well as the position of the interventricular septum were compared with 22 chest CT scans as compared to patients with no known clinical history of pulmonary hypertension, performed for other reasons (trauma, oncology follow-up) during the study period. Correlations were also calculated with recent right heart catheterization, echocardiography and pulmonary function tests of the study group.

Results: Mean main pulmonary artery diameter in the study group was 3.55 ± 0.66 cm, pulmonary artery/ascending aorta ratio 1.2 ± 0.29, right pulmonary artery 2.63 ± 0.49 cm, left pulmonary artery 2.57 ± 0.5 cm. All diameters were significantly different from the control group (P < 0.0001). Main and right pulmonary artery diameters correlated to the pressure measurement by echocardiography (P = 0.001). Bronchial collaterals were found in 11 patients (30%). The position of the interventricular septum correlated well with the echocardiography study.

Conclusions: The size of the main pulmonary artery on CT angiography has a good predictive value regarding the severity of PHT.