H. Matsumoto, K. Mashiko, Y. Hara, Y. Sakamoto, N. Kutsukata, K. Takei, Y. Tomita, Y. Ueno and Y. Yamamoto
Background: In Japan, helicopters have rarely been used for emergency medical services. The use of helicopters not only ensures rapid evacuation but may also serve to provide emergency management to patients with life-threatening injuries in the prehospital setting.
Objectives: To evaluate a Japanese helicopter-based emergency medical system including an onboard physician, particularly in terms of probability of survival.
Methods: We conducted a retrospective review of trauma victims, and calculated two estimates of PS – at the scene and on arrival at the emergency department – based on patient age, Injury Severity Score, and Revised Trauma Score.
Results: We identified trauma victims who had an ISS above 15 and were transported from the scene by helicopter. Excluding cardiopulmonary arrest at the scene, 151 cases were studied. Thirty-two patients had hemodynamic instability with systolic blood pressures below 90 mmHg, caused by hemorrhagic shock (29 cases) or obstructive shock (3 cases). Their PS values were 0.56 ± 0.38 in the prehospital setting and 0.65 ± 0.38 on arrival at the ED, representing a significant difference (P = 0.0003). Twenty-four of these patients survived, reflecting successful resuscitation during prehospital and ED management.
Conclusions: A doctor-helicopter system was shown to improve probability of survival for life-threatening trauma in the Japanese emergency medical system.
D. Bader, A. Kugelman, D. E. Blum, A. Riskin, E. Tirosh
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.
G. Rashid, Z.Korzets and J. Bernheim
Background: Advanced glycation end products, formed by the non-enzymatic glycation of proteins with reducing sugars, are thought to play a pathogenetic role in the vascular complications of diabetes, uremia and atherosclerosis. β2-microglobulin is a major constituent of amyloid fibrils in dialysis-related amyloidosis. AGE-modified β2m has been found in amyloid deposits of long-term hemodialysis patients. AGE-modified β2m has also been shown to enhance chemotaxis and increase tumor necrosis factor-alpha and interleukin-1 beta secretion by circulating and tissue monocytes/macrophages.
Objectives: To investigate the effect of AGE-modified β2m and AGE-human serum albumin on TNF-α and IL-1β secretion by human peritoneal macrophages derived from patients on continuous ambulatory peritoneal dialysis.
Methods: Human PMØ were isolated from peritoneal dialysis effluent of stable CAPD patients and were incubated for 24 hours with AGE-modified β2m, β2m, AGE-HSA, HSA or lipopolysaccharide. TNF-α or IL-1β secretion was measured by enzyme-linked immunosorbent assay in cell-free culture supernatants.
Results: Both AGE-modified β2m and AGE-HSA significantly increased TNF-α and IL-1β secretion by human PMØ in a dose-dependent manner (50–200 μg/ml). In contrast, β2m or HSA had no such stimulatory effect on TNF-α secretion but had a small significant increase in IL-1β secretion.
Conclusions: AGE-modified β2m promotes in vitro TNF-α and IL-1β secretion by human PMØ of CAPD patients. Activation of these macrophages by AGE-modified β2m may be a contributory factor to the morphologic changes and altered permeability of the peritoneal membrane in long-term CAPD.
I. Rabin, B. Chikman, Z. Halpern, I. Wassermann, R. Lavy, R. Gold-Deutch, J. Sandbank and A. Halevy
Background: Sentinel lymph node mapping is the standard of care for patients with malignant melanoma and breast cancer. Recently, SLN[1] mapping was introduced to the field of gastric cancer.
Objectives: To evaluate SLN mapping in patients with gastric cancer.
Methods: In 43 patients with gastric cancer, open intraoperative subserosal dye injection in four opposing peritumoral points was used. Ten minutes following dye injection, stained LNs were located, marked and examined postoperatively from the surgical specimen.
Results: SLN mapping was performed in 43 with gastric cancer; 782 lymph nodes were harvested and evaluated. SLNs were stained in 34 of the patients (79.1%) with a mean of 2.85 SLNs per patient. The false negative rate was 20.9%, the positive predictive value 100%, the negative predictive value 78.6% and the sensitivity 86.9%.
Conclusions: SLN mapping in patients with gastric cancer is feasible and easy to perform. SLN mapping may mainly affect the extent of lymph node dissection, and to a lesser degree gastric resection. However, more data are needed.
M. Koren-Michowitz, N. Rahimi-Levene, Y. Volcheck, O. Garach-Jehoshua and A. Kornberg.
Z. Habot-Wilner, H. Desatnik, A. Greenbaum and I. S. Barequet.
Orbital dog bites, although uncommon, occur mostly in children and are reported to be associated with severe ocular adnexal injury without globe involvement.
D. Tanne, U. Goldbourt, S. Koton, E. Grossman, N. Koren-Morag, M. S. Green and N. M. Bornstein
Background: There are no national data on the burden and management of acute cerebrovascular disease in Israel.
Objectives: To delineate the burden, characteristics, management and outcomes of hospitalized patients with acute cerebrovascular disease in Israel, and to examine adherence to current guidelines.
Methods: We prospectively performed a national survey in all 28 hospitals in Israel admitting patients with acute cerebrovascular events (stroke or transient ischemic attacks) during February and March 2004.
Results: During the survey period 2,174 patients were admitted with acute cerebrovascular disease (mean age 71 ± 13 years, 47% women; 89% ischemic stroke or TIA, 7% intracerebral hemorrhage and 4% undetermined stroke). Sixty-two percent of patients were admitted to departments of Medicine and a third to Neurology, of which only 7% were admitted to departments with a designated stroke unit. Head computed tomography was performed during hospitalization in 93% of patients. The overall rate of urgent thrombolytic therapy for acute ischemic stroke was 0.5%. Among patients with ischemic stroke or TIA, 94% were prescribed an antithrombotic medication at hospital discharge, and among those with atrial fibrillation about half were prescribed warfarin. Carotid duplex was performed in 30% and any vascular imaging study in 36% of patients with ischemic events. The mean length of hospital stay was 12 ± 27 days for ICH and 8 ± 11 days for ischemic stroke. Among patients with ICH, 28% died and 66% died or had severe disability at hospital discharge, and for ischemic stroke the corresponding rates were 7% and 41% respectively. Mortality rates within 3 months were 34% for ICH and 14% for ischemic stroke.
Conclusions: This national survey demonstrates the high burden of acute stroke in Israel and reveals discordance between existing guidelines and current practice. The findings highlight important areas for which reorganization is imperative for patients afflicted with acute stroke.