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Decompression (1):
Recent article
Decompression
Abstract
The risk of severe decompression sickness (DCS) increases rapidly above 6248 m (20,500 ft) and is greater when breathing higher proportions of inert gas. Contemporary aircrew may be exposed to higher cabin altitudes while breathing molecular sieve oxygen concentrator (MSOC) product gas containing va...
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PMID: 21197850
PDF is available here.
PDF is available here.
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Abstract
We present the case of a healthy 22-year-old male athlete with SMA syndrome that occurred after blunt abdominal injury in the setting of mild chronic weight loss; he was treated nonoperatively....
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PMID: 20484075
PDF is available here.
PDF is available here.
Neurological Surgery (38)6 2010
Abstract
This study demonstrates that meticulous evaluation of AMR findings intraoperatively can help to improve the results of surgery. We believe that intraoperative AMR monitoring is useful in microvascular decompression for HFS....
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PMID: 20543226
PDF is available here.
PDF is available here.
Abstract
Ulnar nerve entrapment is one of the most common entrapment neuropathies in the upper limb. The most frequent location of this syndrome is behind the elbow. The clinical picture is associated with the localization of the entrapment but usually consists of an altered sensation at the fourth and fifth...
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PMID: 20549929
PDF is available here.
PDF is available here.
Abstract
The method of hypobaric interval hypoxia (HIH) has been developed and approved for application in aerospace, military, prophylactic and rehabilitative medicine. A course of H1H included 10 one-hour daily sessions of hypobaria and interval hypoxia simulating ascent to an altitude from...
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PMID: 21395054
PDF is available here.
PDF is available here.
Abstract
A 24-week gestation complicated by fetal hydrops was prepared for intrauterine transfusion to treat possible fetal anemia. During the therapeutic transfusion procedure, blood samples could be not taken from the umbilical vein, and severe fetal bradycardia developed. Given the severity of the conditi...
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PMID: 20420286
PDF is available here.
PDF is available here.
Abstract
Since 1850, compressed-air work has been used to prevent shafts or tunnels under construction from flooding. Until the 1980s, workers were digging in compressed-air environments. Since the introduction of tunnel boring machines (TBMs), very little digging under pressure is needed. However, the weari...
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PMID: 20737925
PDF is available here.
PDF is available here.
Abstract
This study compared neuroendocrine and psychomotor responses in divers (D, n = 11) and non-divers (ND, n = 9) following 30-minute hyperbaric and decompression stress to 180, 300 and 450 kPa. Venous blood was drawn pre-dive and at 20 and 60 minutes post-dive and analyzed for norepinephrine (NE), epin...
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PMID: 20737929
PDF is available here.
PDF is available here.
Abstract
Our results demonstrated that the serum level of Hsp72 is higher in the Navy divers who underwent regular intensive exercise. However, it remains unknown whether this increase of stress protein is associated with the diving stress or exercise preconditioning in the Navy divers....
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PMID: 20034233
PDF is available here.
PDF is available here.
Abstract
Between nasogastric decompression group and non-nasogastric decompression group, no significant differences in postoperative complications (20.8% vs 23.6%, P=0.719), postoperative time of flatus [(3.2+/-0.9) d vs (3.0+/-0.7) d, P=0.192], recovery time of drinking [(5.9+/-3.4) d vs (5.1+/-1.6) d, P=0...
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PMID: 19742332
PDF is available here.
PDF is available here.
Abstract
We have used a physiological approach in the model derivation with VGE as a measurable endpoint. We propose that the underlying physiological and physical mechanisms of the model can be better validated with such an objective quantitative measurement method. Two simulation examples are given to illu...
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PMID: 19272918
PDF is available here.
PDF is available here.
Abstract
We report a case of a 40-year-old female presenting unilateral orbital emphysema after vigorous nose blowing. She developed sudden visual loss as a result of elevated intraocular pressure and urgent treatment was required. She underwent an orbital decompression, performed using a 24-gauge needle pun...
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PMID: 19466340
PDF is available here.
PDF is available here.
Abstract
Bubble scores were relatively low, although the maximum grading probably is not reached within two hours after decompression. It may be concluded that the oxygen decompression tables used, were reliable under these heavy working conditions. At group level, decompression stress can be evaluated by Do...
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PMID: 19341124
PDF is available here.
PDF is available here.
Abstract
None of the divers developed any signs of DCS. In two groups, the results showed significant increase in RBC count and Hct related with hemoconcentration and no change in PC. Divers with a high KISS score (39 +/- 5.8; mean +/- SD) presented a significantly more pronounced percent fall in PC than div...
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PMID: 19070304
PDF is available here.
PDF is available here.
Abstract
A single session of sauna ending 1 h prior to a simulated dive significantly reduced bubble formation [-27.2% (at rest) to 35.4% (after flexions)]. The sauna session led to an extracellular dehydration, resulting in hypovolemia (-2.7% PV) and -0.6% bodyweight loss. A significant rise of FMD and a re...
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PMID: 19070305
PDF is available here.
PDF is available here.
Abstract
Initial prevalence of R/L shunt was 41%: six type I shunts and one type II. At the second examination, prevalence was 47%, with the appearance of one type I shunt that was not previously present. We found no significant increase in the prevalence and size of R/L shunts. CONCLUSION: It is speculated...
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PMID: 18065441
PDF is available here.
PDF is available here.
Georgian medical news ()163 2008
Abstract
The aim of this research was to study the efficiency of preoperative decompression of bile ducts in patients with pancreatic cancer, complicated with obstructive jaundice. In a retrospective study short-term results of surgical treatment of patients with preoperative drainage and patients without dr...
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PMID: 18997245
PDF is available here.
PDF is available here.
Abstract
Otology & Neurotology (29)4 2008
Abstract
Of 17,935 exposures, 740 trainees (4.1%) had ear pain. Of 7,047 trainees, 429 (6.1%) complained of ear pain especially in Type III, totaling 625 times. Fighter pilots and cargo pilots complained of ear pain one twelfth and one third the number of times, respectively, compared with passengers. Of the...
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PMID: 18401284
PDF is available here.
PDF is available here.
Abstract
We detail the LANL diving reduced gradient bubble model (RGBM), dynamical principles, and correlation with data in the LANL Data Bank. Table, profile, and meter risks are obtained from likelihood analysis and quoted for air, nitrox, helitrox no-decompression time limits, repetitive dive tables, and...
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PMID: 18371945
PDF is available here.
PDF is available here.
Child's Nervous System (24)4 2008
Abstract
Our purpose was to formulate neurological examination based scoring system and compare its effectiveness with KPS. MATERIALS AND METHODS: A retrospective analysis of 37 pediatric patients with brainstem lesions was performed. All these patients were assessed both pre- and post-treatment and in every...
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PMID: 17978821
PDF is available here.
PDF is available here.
Annals of Surgery (247)2 2008
Abstract
Historically, NG tube decompression has been recommended postoperatively in SPK patients. These data refute this traditional clinical practice. SPK patients managed without NG decompression have shorter hospital length of stay, equivalent graft survival, and no increased morbidity....
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PMID: 18216544
PDF is available here.
PDF is available here.
Abstract
The probabilistic model of the development of decompression disease was modified by introducing the corrections into its equation that refine the dependence of the risk of the injury of tissues by gas bubbles on their blood supply and the intensity of nucleation processes. The parameters of the "wor...
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PMID: 18488514
PDF is available here.
PDF is available here.
Abstract
We find out, that despite longer working hours, shorter decompression times and larger physical workloads, the saturation-excursion technique was associated with significant lower bubble grades than in the bounce technique using Doppler Ultrasound. We conclude that the saturation-excursion technique...
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PMID: 19175196
PDF is available here.
PDF is available here.
Abstract
We derive a simple model to investigate whether this vessel occlusion is a serious concern....
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PMID: 18018706
PDF is available here.
PDF is available here.
Abstract
We conclude that CD colitis represents a severe complication following SOT. Recently, a dramatic increase in the incidence of this complication has been observed. The development of life-threatening toxic megacolon must be considered in solid organ recipients....
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PMID: 17406820
PDF is available here.
PDF is available here.
Joint Bone Spine (74)5 2007
Abstract
We report a rare case of idiopathic SEL which has shown entire evolvement of lumbar spine with specific increase of radiological and clinical severity from L2-3 to L5-S1 in a non-obese patient....
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PMID: 17681857
PDF is available here.
PDF is available here.
Abstract
Among patients who underwent surgery for lumbar degenerative disease, more than twice as many had a fusion procedure in the 1997 to 2000 cohort (19.1%) compared with the 1990 to 1993 cohort (9.4%). However, the 4-year cumulative incidence of reoperation was higher in the 1997 to 2000 cohort compared...
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PMID: 17762814
PDF is available here.
PDF is available here.
Abstract
After a hyperbaric air exposure, tear film bubbles reflect the process of denitrogenation, which may persist for up to 2 days after the decompression....
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PMID: 17652748
PDF is available here.
PDF is available here.
Abstract
Abstract
We investigated the effect of change in intrathoracic pressure by total body negative pressure (TBNP) or positive pressure (TBPP) on thermoregulatory responses during -6 degree head-down bed rest (HDBR). Eight healthy male subjects participated to three of the following interventions in a randomised...
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PMID: 18372721
PDF is available here.
PDF is available here.
Abstract
All CTR animals developed bubbles, compared with only one animal in EXP. The number of bubbles detected during and after the dive was 0.02 +/- 0.02 bubbles x cm(-2) in CTR, while the number of bubbles detected in EXP were 0.0009 +/- 0.005 bubbles x cm(-2); the difference was highly significant. CONC...
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PMID: 17571654
PDF is available here.
PDF is available here.
Abstract
Bullae are common accompaniments of chronic obstructive pulmonary disease especially emphysema. They contribute to increased lung volume and worsen the mechanical disadvantage of the inspiratory muscles by increasing the residual volume (RV) and RV/total lung capacity ratio. Thus effective decompres...
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PMID: 17470621
PDF is available here.
PDF is available here.
Abstract
These results are consistent with the hypothesis that repetitive exposure to 7-ATA air has a temporary immunosuppressive effect on rats, which is related to oxidative stress induced by the high partial pressure of oxygen in breathing gas....
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PMID: 17484337
PDF is available here.
PDF is available here.
Neurological Surgery (35)2 2007
Abstract
We have used Seprafilm instead of Gore-Tex membranes which had been used in neurosurgery. Seprafilm were placed between the temporal muscle and the dura with dural plasty using periostium or temporal fascia. Insertion of Seprafilm makes it easy for subsequent cranioplasty, to decrease operating time...
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PMID: 17310754
PDF is available here.
PDF is available here.
Abstract
We have applied the method to available VGE data from tested air diving procedures with between 7 and 14 test dives for each procedure. The estimated credible intervals correspond to confidence intervals from 130-250 dives using the binomial distribution of the traditional "DCS observation validatio...
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PMID: 17310879
PDF is available here.
PDF is available here.
Journal of Anesthesia (21)2 2007
Abstract
Our result suggests that CNEP may represent a first-line option to save patients from critical circulatory failure after a Fontan-type operation....
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PMID: 17458662
PDF is available here.
PDF is available here.
American Surgeon (73)1 2007
Abstract
Although the lithotomy position is frequently used in urologic, gynecologic, and colorectal surgery, the potentially devastating complication of lower extremity compartment syndrome is not widely recognized. The authors report a 50-year-old woman who underwent 8 hours of colorectal surgery in the li...
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PMID: 17249450
PDF is available here.
PDF is available here.
Thrombosis Research (121)2 2007
Abstract
Hyperbaric exposition and decompression induce activation of fibrinolysis, even in the absence of detectable gas bubbles. Fibrinolytic activity increases mainly due to decrease of PAI-1 concentration and activity. Further clinical trials are necessary for the estimation of the importance of activati...
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PMID: 17521709
PDF is available here.
PDF is available here.
Abstract
Chronic pain and prolonged use of opioids raise the prevalence of OD in spine surgery patients to 20 percent. The lack of effect of OD on LOS after surgical intervention means that efforts to decrease LOS by trying to satisfy patients' craving for opioids will not be fruitful. Older, African-America...
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PMID: 18027538
PDF is available here.
PDF is available here.
Soudni lekarstvi / casopis Sekce soudniho lekarstvi Cs. lekarske spolecnosti J. Ev. Purkyne (52)1 2007
Abstract
We selected cell cultures derived from human fibroblasts B-HEF-2 and cell cultures of mice N2A neuroblasts. We used two decompression profiles. "Explosive" decompression profile with a linear compression to overpressure of 50 bar with an rapid decompression to atmospheric pressure (1 bar). In simula...
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PMID: 17370505
PDF is available here.
PDF is available here.
Abstract
Previous trials of flying at 8,000 ft after a single 60 fsw, 55 min no-stop air dive found low decompression sickness (DCS) risk for a 11:00 preflight surface interval (PFSI). Repetitive 60 fsw no-stop dives with 75 and 95 min total bottom times found 16:00. Trials reported here investigated PFSIs f...
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PMID: 17672177
PDF is available here.
PDF is available here.
Abstract
In helium saturated rat abdominal adipose tissue, helium bubbles were studied at 101.3 kPa during breathing of either heliox(80:20), 100% oxygen or air after decompression from an exposure to heliox at 405 kPa for one hour. While breathing heliox bubbles initially grew for 15-115 minutes then shrank...
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PMID: 17520862
PDF is available here.
PDF is available here.
Abstract
Upon reaching 240 msw, one subject reported vertigo, disequilibrium and nausea, and in all subjects, mean postural sway increased 26% on bare platform with eyes open (p < 0.05) compared to predive values. There was no significant improvement in postural sway during the bottom phase, but a trend was...
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PMID: 17520863
PDF is available here.
PDF is available here.
Abstract
Neurosurgery (60)1 Supp1 1 2007
Abstract
Subaxial cervical deformities most often occur in the sagittal plane, primarily as kyphosis. Kyphosis may develop secondary to advanced degenerative disease, trauma, neoplastic disease, or after surgery. Whatever the cause, the development of cervical deformity should be avoided and corrected when a...
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PMID: 17204892
PDF is available here.
PDF is available here.
Abstract
No difference in BNP levels was found between T0 and T1 or T2. DISCUSSION: The findings of this preliminary study show that in healthy subjects a single HBO exposure does not significantly modify BNP plasma levels. We hypothesize that this can be the net result between the stimulating effect of the...
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PMID: 17225483
PDF is available here.
PDF is available here.
Abstract
Underwater and Hyperbaric Medicine is a treatment modality gaining recognition in Malaysia. It uses the hyperbaric oxygen therapy (HBOT) approach where patients are placed in recompression chambers and subjected to oxygen therapy under pressure. In Malaysia it was introduced as early as the 1960's b...
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PMID: 17623973
PDF is available here.
PDF is available here.
Abstract
We report a case of acute retrobulbar haemorrhage following orbital trauma in a 78-year-old Chinese lady. TREATMENT: The patient was on follow-up for a mature cataract in the right eye and had been scheduled for cataract surgery. The patient presented to the emergency department with acute loss of v...
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PMID: 17160200
PDF is available here.
PDF is available here.
Abstract
Decompression stress and exposure to hyperoxia may cause a reduction in transfer factor of the lung for carbon monoxide and in maximal aerobic capacity after deep saturation dives. In this study lung function and exercise capacity were assessed before and after a helium-oxygen saturation dive to a p...
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PMID: 16969641
PDF is available here.
PDF is available here.
Academic Emergency Medicine (13)10 2006
Abstract
These results support our hypothesis that reduction of central blood volume in human beings is associated with increased R-wave amplitude in lead II of an ECG....
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PMID: 16973639
PDF is available here.
PDF is available here.
Abstract
The IOP-lowering effect produced by a tungsten powder-filled balloon ocular decompression device compared with a traditional mercury-containing device was not statistically different....
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PMID: 16935602
PDF is available here.
PDF is available here.
Abstract
These data suggest that the efficacy of spinal decompression achieved with motorized traction for chronic discogenic low back pain remains unproved. This may be, in part, due to heterogeneous patient groups and the difficulties involved in properly blinding patients to the mechanical pulling mechani...
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PMID: 17147594
PDF is available here.
PDF is available here.
Abstract
We report the results of 33 facial nerve decompressions conducted in the Sheba Medical Center through the years 1985-2002. Fifteen of our patients were operated on using the middle cranial fossa approach, 12 underwent mastoidectomy and 6 were treated using the combined middle cranial fossa mastoidec...
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PMID: 16983835
PDF is available here.
PDF is available here.
Der Orthopäde (35)6 2006
Abstract
Lumbal spinal stenosis is gaining more and more clinical relevance because of changing population structure and increasing demand on lifequality in the elderly. Current treatment recommendations are based on clinical experience, expert opinions and single studies rather than on proven evidence. The...
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PMID: 16770609
PDF is available here.
PDF is available here.
Abstract
The results demonstrate for the first time that a simulated saturation dive decreased glutathione content in peripheral blood cells (32% decrease in MNC), and that the decrease was most pronounced in the erythrocytes (45%). Remarkably, no single-stranded DNA breaks could be detected in the MNC despi...
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PMID: 16780237
PDF is available here.
PDF is available here.
Abstract
Under decompression, bubbles can form in the human body, and these can be found both within the body tissues and the bloodstream. Mathematical models for the growth of both types of bubbles have previously been presented, but they have not been coupled together. This work thus explores the interacti...
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PMID: 16625045
PDF is available here.
PDF is available here.
Abstract
One hour after the dive, microbubbles could be detected in the right-heart chambers of all subjects. Left atrial and left ventricular (LV) diameters significantly decreased after the dive. Cardiac output, assessed by aortic blood flow, remained unchanged. Heart rate increased and stroke volume (SV)...
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PMID: 16685027
PDF is available here.
PDF is available here.
Journal of Neurosurgery (104)3 Suppl 2006
Abstract
Dandy-Walker malformation (DWM) is a well-described clinical entity, which includes vermian agenesis, posterior fossa cysts, and frequently, hydrocephalus. The authors report the clinical course and present the radiographic findings pertaining to a 1-month-old girl with DWM who was treated initially...
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PMID: 16572641
PDF is available here.
PDF is available here.
Abstract