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81.
G. Negri S. Grassi M. Zappia S. Cappabianca P. F. Rambaldi L. Mansi 《Journal of orthopaedics and traumatology》2006,7(4):176-181
Transient osteoporosis is an infrequent condition of uncertain etiology with pain, limited range of motion and radiographic
evidence of osteoporosis affecting one or more joints. It is self-limited, reversible and can involve only the hip (transient
osteoporosis of the hip, TOH) or, less frequently, one or more joints contemporaneously or at different times (regional migratory
osteoporosis, RMO). We studied four men with transient osteoporosis, including two with TOH and two with RMO. All patients
underwent a standard radiographic work-up of the affected joints, arteriovenous Doppler US, computed tomography, magnetic
resonance imaging (MRI) and three-phase bone scanning. In all patients, symptoms were related to bone marrow edema demonstrated
at MRI and to a transitory regional arterial hyperflow observed at the early scintigraphic analysis. On the basis of our observations,
we hypothesize that regional arterial hyperflow may be the cause of the bone marrow edema and therefore of the transient osteoporosis. 相似文献
82.
目的 比较高血压合并阻塞性睡眠呼吸暂停患者的短期血压变异性。方法 将155例分为对照组、高血压组、高血压合并轻度或中重度阻塞性睡眠呼吸暂停组,EE较患者不同活动状态的短期血压变异性。结果 高血压合并中重度阻塞性睡眠呼吸暂停组患者睡眠期间和早晨血压变异系数分别为:收缩压18.69、21.32;舒张压19.41、23.61,明显高于其他各组。结论 夜间睡眠期间和早晨短期血压变异性增加,是高血压合并中重度阻塞性睡眠呼吸暂停患者夜间和早晨心血管事件发生率增加的重要危险因素。 相似文献
83.
A. Barutçu 《European journal of plastic surgery》1994,17(6):316-318
Summary Pedicled temporoparietal fascial flaps have been used extensively in head and neck reconstruction for many years. Also, the fascia has been grafted, and the skin graft transformed into a vascularized pedicled flap (prefabricated temporoparietal fasciocutaneous flap). On the other hand, some authors have used free temporoparietal fascial flaps for defects that require to be filled in lower and upper extremity wounds. In this case, a free prefabricated temporoparietal fascio-chondro-cutaneous flap having only an arterial inflow was used in eyelid reconstruction.Presented at the 14th Congress of Turkish Plastic and Reconstructive Surgery, Ankara, Turkey, October 1992 相似文献
84.
重庆市城市居民原发性高血压的病例对照研究 总被引:2,自引:0,他引:2
本研究采用1:4配比的方法,收集了370例确诊高血压病例与1480例对照,进行了病例对照研究。经条件logistic回归模型分析发现与高血压有关的危险因素有以下五个:体重指数、吸烟年限、脉率、卫生知识水平和家族史。 相似文献
85.
Ivar Rønnestad Einar Thorsen Kåre Segadal Arvid Hope 《European journal of applied physiology》1994,69(1):32-35
In diving, pulmonary mechanical function is limited by the increased density of the gas breathed. Breathing cold and dry gas may cause an additional increase in airways resistance. We have measured forced vital capacity, forced expired volume in 1 s (FEV1) and forced midexpiratory flow rate (FEF25%–75%) before and after breathing dry or humid gas at 29–32°C during a standardized exercise intensity on a cycle ergometer at an ambient pressure of 3.7 MPa. The atmosphere was a helium and oxygen mixture with a density of 6.8 kg · m–3. Six professional saturation divers aged 26–37 years participated in the study. There were no significant differences in convective respiratory heat loss between the exposures. The mean evaporative heat loss was 67 W (range 59–89) breathing dry gas and 37 W (range 32–43) breathing humid gas, corresponding to water losses of 1.7 g · min–1 (range 1.5–2.2) and 0.9 g · min–1 (range 0.8–1.1), respectively. There was a significant reduction in FEV1 of 4.6 (SD 3.6)% (P<0.05), and in FEF25%–75% of 5.8 (SD 4.7)% (P<0.05) after breathing dry gas. There were no changes after breathing humid gas. By warming and humidifying the gas breathed in deep saturation diving bronchoconstriction may be prevented. 相似文献
86.
87.
严重肺挫伤早期肺泡灌洗液表面活性蛋白变化与肺功能及形态学改变的关系 总被引:1,自引:1,他引:0
目的探讨严重肺挫伤及缺血再灌注后早期肺泡灌洗液(BALF)中表面活性蛋白(SP)-A、B、C、D动态变化与肺功能及肺形态学改变的关系。方法75只兔随机分为对照组(A)、肺挫伤组(B)及缺血再灌注组(C)。每组均为25只。检测各组0,1,2,3,4h肺功能变化及BAIF中SP—A、B、C、D含量百分比,进行组织病理学及电镜检查。结果与A组比较,B、C组sSP—A、B、C、D含量百分比明显减少(P〈0.01);肺功能出现明显的损害且呈持续下降(P〈0.05);肺泡Ⅱ型细胞电镜及病理学检查呈不同程度的炎症及变性改变。结论严重肺挫伤BALF中SP—A、B、C、D动态变化与肺功能及肺组织病理学改变一致。 相似文献
88.
89.
90.
Yoan Lamarche Louis P. Perrault Simon Maltais Karine Ttreault Jean Lambert Andr Y. Denault 《European journal of cardio-thoracic surgery》2007,31(6):1081-1087
Background: Inhaled administration of milrinone reduces pulmonary artery pressure. Pulmonary hypertension (PH) and right heart failure are associated with difficult separation from cardiopulmonary bypass (CPB). Therefore, inhaled milrinone could facilitate separation from CPB. Objective: To determine the impact and timing of administration of inhaled milrinone. Methods: A retrospective analysis of our experience on high-risk patients receiving inhaled milrinone was conducted to evaluate the postoperative course after administration of the drug. Results: Seventy-three patients received inhaled milrinone from June 2002 to February 2005. Mean age was 64 ± 13 years, with a mean preoperative Parsonnet score of 27 ± 14. Inhaled milrinone (5 mg) was administered before (n = 30) or after (n = 40) CPB, three patients had off-pump procedures and were excluded. CPB time was 145 ± 78 min with cross-clamping times of 91 ± 56 min without any significant difference between groups. Fifty-four patients (74%) had difficult separation from CPB, 14 patients (19%) required an intra-aortic balloon pump and 10 patients (14%) needed emergency reinitiation of CPB for hemodynamic instability. Ten patients died in the perioperative period (13.7%). Patients receiving inhaled milrinone prior to CPB initiation had a lowering pulmonary artery pressure after CPB (p < .01) and had less emergency reinitiation of CPB after weaning (3% vs 23%, p = .02) as compared to those with administration after CPB. No detectable side effects were directly linked to the administration of the drug. Conclusion: In this high-risk cohort, use of inhaled milrinone was well tolerated. Administration before initiation of CPB could help weaning from CPB. 相似文献