Orbital apex syndrome is a disastrous ophthalmic disease which usually leads to visual loss and immobility in the injured eyes. Up to now, no effective treatment has been achieved. So as much as possible attention sho...Orbital apex syndrome is a disastrous ophthalmic disease which usually leads to visual loss and immobility in the injured eyes. Up to now, no effective treatment has been achieved. So as much as possible attention should be paid to prevent such tragedies.展开更多
Background:Regional anaesthesia has been proposed to reduce intraoperative blood loss,duration of hospital stay and in-hospital complications with improved postoperative pain control.General anaesthesia is advantageou...Background:Regional anaesthesia has been proposed to reduce intraoperative blood loss,duration of hospital stay and in-hospital complications with improved postoperative pain control.General anaesthesia is advantageous for prolonged surgeries.We hypothesized that combined regional and general anaesthesia would offer advantages of both in pelvi-acetabular fracture surgeries.Methods:We identified 71 patients who underwent open reduction and internal fixation of pelvi-acetabular fractures from May 2012 to 2013 in our trauma centre.We excluded patients with incomplete records(n=4)and other injuries operated along(n=8).Hence,59 patients were divided into three groups:G group(general anaesthesia),R group(regional anaesthesia)and GR group(combined regional and general anaesthesia).Main outcome measurements studied were intraoperative blood loss,duration of hospital stay,duration of surgery and intraoperative and postoperative complications.Results:No differences were obtained in between the groups in terms of age,gender,Injury Severity Score,number of comorbidities,or duration from injury to surgery.No significant differences were found between the three groups for intraoperative blood loss,days of hospital stay and duration of surgery.Intraoperative and postoperative complications were also comparable between the groups(p>0.05).Conclusions:There is no specific significant advantage of the technique of anaesthesia on the observed perioperative complications in pelvi-acetabular fracture surgeries.展开更多
We have previously evaluated asbestos exposure associated with various maintenance procedures on light aircraft. The purpose of this study was to evaluate asbestos exposure during engine maintenance on light aircraft....We have previously evaluated asbestos exposure associated with various maintenance procedures on light aircraft. The purpose of this study was to evaluate asbestos exposure during engine maintenance on light aircraft. This test was designed to evaluate the potential for asbestos exposure to mechanics and others who remove asbestos-containing engine gaskets from reciprocating style aircraft engines. Utilized in this test was an air cooled, horizontally opposed, aviation gasoline burning engine, assembled during 1986 and operated intermittently up into 2015, having accumulated 1680 hours run time. Nearly 75% of the asbestos-containing gaskets installed during 1986 were still in place at the time of testing. Chrysotile asbestos contents of such gaskets ranged from 55% to 60% by area, for those of sheet style and 5% by area, for the spiral wound metal/asbestos style. Despite the levels of effort required to effect gasket removals, the professional aircraft mechanic was not exposed to airborne asbestos fibers at the lower limits of sampling and analytical detection achieved;all of which were substantially less than the current Occupational Safety and Health Administration Permissible Exposure Limits for asbestos. The results of this testing indicate an absence of gasket related asbestos exposure risk to mechanics who work with light aircraft engines, including those having asbestos-containing gaskets. These results are consistent with the findings of Mlyarek and Van Orden who studied the asbestos exposure risk occasioned during overhaul of larger radial style reciprocating aircraft engines [1].展开更多
无弹力锤在许多金属制造车间中都被广泛应用，其配有一个锤头，通过吸收冲击力来避免损害零件，产生的噪声比金属头的锤子更低，使用过程中也不会产生火花。Austmould公司为客户生产直径为25mm、38mm、50mm和60mm的各类铸铝锤子的尼龙6...无弹力锤在许多金属制造车间中都被广泛应用，其配有一个锤头，通过吸收冲击力来避免损害零件，产生的噪声比金属头的锤子更低，使用过程中也不会产生火花。Austmould公司为客户生产直径为25mm、38mm、50mm和60mm的各类铸铝锤子的尼龙6锤头。有客户反映，一些采用最大号锤头的锤子未能通过其内部冲击力测试，Austmould公司马上针对该问题咨询了Teknor Apex Asia Pacific公司及其在澳大利亚的经销商TCLHofmann。展开更多
This paper challenges the concept that the essential element in wound healing is to offload pressure. We suggest a change in approach that recognizes the integumentary system as one which, like all other body systems,...This paper challenges the concept that the essential element in wound healing is to offload pressure. We suggest a change in approach that recognizes the integumentary system as one which, like all other body systems, adapts to the stresses put upon it. We use a clinical case example to illustrate the use of intentional mechanical stress to promote wound healing and include a review of the relevant literature. The intent of this publication is to call for a new look at clinical practice regarding wound healing and to call for future research directed at investigation of this theory.展开更多
文摘Orbital apex syndrome is a disastrous ophthalmic disease which usually leads to visual loss and immobility in the injured eyes. Up to now, no effective treatment has been achieved. So as much as possible attention should be paid to prevent such tragedies.
文摘Background:Regional anaesthesia has been proposed to reduce intraoperative blood loss,duration of hospital stay and in-hospital complications with improved postoperative pain control.General anaesthesia is advantageous for prolonged surgeries.We hypothesized that combined regional and general anaesthesia would offer advantages of both in pelvi-acetabular fracture surgeries.Methods:We identified 71 patients who underwent open reduction and internal fixation of pelvi-acetabular fractures from May 2012 to 2013 in our trauma centre.We excluded patients with incomplete records(n=4)and other injuries operated along(n=8).Hence,59 patients were divided into three groups:G group(general anaesthesia),R group(regional anaesthesia)and GR group(combined regional and general anaesthesia).Main outcome measurements studied were intraoperative blood loss,duration of hospital stay,duration of surgery and intraoperative and postoperative complications.Results:No differences were obtained in between the groups in terms of age,gender,Injury Severity Score,number of comorbidities,or duration from injury to surgery.No significant differences were found between the three groups for intraoperative blood loss,days of hospital stay and duration of surgery.Intraoperative and postoperative complications were also comparable between the groups(p>0.05).Conclusions:There is no specific significant advantage of the technique of anaesthesia on the observed perioperative complications in pelvi-acetabular fracture surgeries.
文摘We have previously evaluated asbestos exposure associated with various maintenance procedures on light aircraft. The purpose of this study was to evaluate asbestos exposure during engine maintenance on light aircraft. This test was designed to evaluate the potential for asbestos exposure to mechanics and others who remove asbestos-containing engine gaskets from reciprocating style aircraft engines. Utilized in this test was an air cooled, horizontally opposed, aviation gasoline burning engine, assembled during 1986 and operated intermittently up into 2015, having accumulated 1680 hours run time. Nearly 75% of the asbestos-containing gaskets installed during 1986 were still in place at the time of testing. Chrysotile asbestos contents of such gaskets ranged from 55% to 60% by area, for those of sheet style and 5% by area, for the spiral wound metal/asbestos style. Despite the levels of effort required to effect gasket removals, the professional aircraft mechanic was not exposed to airborne asbestos fibers at the lower limits of sampling and analytical detection achieved;all of which were substantially less than the current Occupational Safety and Health Administration Permissible Exposure Limits for asbestos. The results of this testing indicate an absence of gasket related asbestos exposure risk to mechanics who work with light aircraft engines, including those having asbestos-containing gaskets. These results are consistent with the findings of Mlyarek and Van Orden who studied the asbestos exposure risk occasioned during overhaul of larger radial style reciprocating aircraft engines [1].
文摘无弹力锤在许多金属制造车间中都被广泛应用，其配有一个锤头，通过吸收冲击力来避免损害零件，产生的噪声比金属头的锤子更低，使用过程中也不会产生火花。Austmould公司为客户生产直径为25mm、38mm、50mm和60mm的各类铸铝锤子的尼龙6锤头。有客户反映，一些采用最大号锤头的锤子未能通过其内部冲击力测试，Austmould公司马上针对该问题咨询了Teknor Apex Asia Pacific公司及其在澳大利亚的经销商TCLHofmann。
文摘This paper challenges the concept that the essential element in wound healing is to offload pressure. We suggest a change in approach that recognizes the integumentary system as one which, like all other body systems, adapts to the stresses put upon it. We use a clinical case example to illustrate the use of intentional mechanical stress to promote wound healing and include a review of the relevant literature. The intent of this publication is to call for a new look at clinical practice regarding wound healing and to call for future research directed at investigation of this theory.
