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Outcomes of surgical management of tracheobronchial injuries a case series from a developing country

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Chinese Journal of Traumatology 2011年第3期14卷 161-164页

作者： saulat h. fatimi hashim M. hanif Ameera Ahmed Ghina Shamsi Marium Muzaffar Department of Surgery Division of Cardiothoracic Surgery Aga Khan University Karachi Pakistan Medical College Aga Khan University Karachi Pakistan

Objective： Tracheobronchial injuries are defined as injuries involving the trachea and/or bronchi from the level of the cricoid cartilage extending up to the division of the bronchi. We present a case series with most of the tracheobronchial injuries found to be sustained after penetrating trauma. Methods： A retrospective review was performed at the Aga Khan University, Karachi, Pakistan. From January 2004 to December 2009, 168 patients with thoracic trauma were treated, of whom 15 were recognized to have major tracheobronchial and pulmonary injuries. Results： The average age was 3 l years with most of the patients being male （14：1）. Among them,11 patients had penetrating trauma as the main cause of injury, 3 patients had blunt trauma from road traffic accidents, only 1 patient had combined trauma （blunt and penetrating trauma）. Eightpatients were diagnosed based on radiological findings. All the patients were treated surgically. Lobectomy was the most common intervention performed in 7 patients. The mortality rate was 7% （1 patient）. Most patients survived with no sequelae （10 patients） while 5 survived with disability. We found that penetrating trauma was the leading cause of injury in our series. The severity of injury depends upon the weapon causing the trauma. Patients in our series had multiple injuries and required surgical management. Conclusions： Tracheobronchial injuries are rare but potentially life threatening. They require quick diagnosis and management. Diagnosis tends to be difficult since there are no specialised diagnostic modalities available at present.

关键词： Bronchi Trachea Thoracic injuries

Extensively drug-resistant Salmonella typhi causing rib osteomyelitis: A case report

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Asian Pacific Journal of Tropical Medicine 2021年第5期14卷 231-233页

作者： Sara Iqbal humza Thobani saulat fatimi Section of Cardiothoracic Surgery Department of SurgeryAga Khan University HospitalPakistan Medical College Aga Khan UniversityPakistan

Rationale:Salmonella(S.)typhi is a rare cause of osteomyelitis in immunocompetent *** drug resistance(XDR)may lead to more complicated cases of *** *** concern:A 55-year-old female presented with a persistent low-grade fever and a swelling on her lower left chest with a sinus discharging purulent fluid for the past 8 *** symptoms had been unresponsive to previous anti-microbial ***:Rib osteomyelitis caused by XDR ***:Surgical wound debridement,left 7th-9th rib resection and intravenous Ⅳ meropenem were ***:Fever resolved and left-sided swelling resected without ***:The prevalence of XDR *** is growing in South Asia and should be considered as the differential diagnosis of chronic osteomyelitis.

关键词： Salmonella typhi Extensive drug resistance Rib Osteomyelitis Immunocompetence

活性赤泥-聚吡咯复合材料对活性黄-145染料的吸附研究

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水处理技术 2024年第5期50卷 47-53页

作者： Muhammad Talha Majeed 李扬 hammad saulat 吴博文李攀钰胡浩权大连理工大学化工学院煤化工研究所辽宁大连116024

染料是一种结构复杂、具有剧毒的有机化合物,对人体毒害作用大。本研究制备了一种基于活性赤泥(activated red mud,ARM)和聚合吡咯(polypyrrole,PPy)的吸附剂,并应用于水溶液中染料的吸附脱除。通过吸附实验研究了溶液ph、吸附剂种类、... 详细信息

染料是一种结构复杂、具有剧毒的有机化合物,对人体毒害作用大。本研究制备了一种基于活性赤泥(activated red mud,ARM)和聚合吡咯(polypyrrole,PPy)的吸附剂,并应用于水溶液中染料的吸附脱除。通过吸附实验研究了溶液ph、吸附剂种类、吸附时间、添加量和染料初始浓度对吸附过程的影响,并对ARM-PPy复合材料进行分析表征,阐明了活性黄染料-145(RYD-145)的吸附作用机制。RYD-145在ARM-PPy上的吸附过程与三种吸附等温线关联极好(R2>0.99),其中Langmuir吸附最合适。根据Langmuir吸附模型的拟合结果,RYD-145的最大吸附量是442.5 mg/g。热力学研究表明,RYD-145分子在ARM-PPy的吸附过程中,焓变(Δh)和熵变(ΔS)均增加,这表明该过程为吸热过程,且表面RYD-145分子排列具有随机性。研究表明,ARM-PPy具有高效处理阴离子和阳离子染料污染废水的能力,且具有较好的成本效益。

关键词：吸附染料赤泥活性黄染料-145 聚吡咯

Tungsten incorporated mobil-type eleven zeolite membranes: Facile synthesis and tuneable wettability for highly efficient separation of oil/water mixtures

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中国化学工程学报:英文版 2023年第8期60卷 242-252页

作者： hammad saulat Jianhua Yang Tao Yan Waseem Raza Wensen Song Gaohong he State Key Laboratory of Fine Chemicals Institute of Adsorption and Inorganic MembraneDalian University of TechnologyDalian 116024China Panjin Institute of Industrial Technology Dalian University of TechnologyPanjin 124221China Institute of Advance Study Shenzhen UniversityShenzhen 518060China

Tungsten (W) incorporated mobil-type eleven (MEL) zeolite membrane (referred to as W-MEL membrane) with high separation performance was firstly explored for the separation of oil/water mixtures under the influence of gravity.W-MEL membranes were grown on stainless steel (SS) meshes through in-situ hydrothermal growth method facilitated with (3-aminopropyl)triethoxysilane (APTES) modification of stainless steel meshes,which promote the heterogeneous nucleation and crystal growth of W-MEL zeolites onto the mesh surface.W-MEL membranes were grown on different mesh size supports to investigate the effect of mesh size on the separation performance of the *** assynthesized W-MEL membrane supported on 500 mesh (25μm)(W-MEL-500) exhibit the hydrophilic nature with a water contact angle of 11.8°and delivers the best hexane/water mixture separation with a water flux and separation efficiency of 46247 L·m^(-2)·h^(-1)and 99.5%,*** wettability of W-MEL membranes was manipulated from hydrophilic to hydrophobic nature by chemically modifying with the fluorine-free compounds (hexadecyltrimethoxysilane (hDTMS) and dodecyltrimethoxysilane(DDTMS)) to achieve efficient oil-permselective separation of heavy oils from *** the hydrophobically modified W-MEL membranes,W-MEL-500-hDTMS having a water contact angle of146.4°delivers the best separation performance for dichloromethane/water mixtures with a constant oil flux and separation efficiency of 61490 L·m^(-2)·h^(-1)and 99.2%,respectively along with the stability tested up to 20 *** W-MEL-500-hDTMS and W-MEL-500-DDTMS membranes also exhibit similar separation performances for the separation of heavy oil from sea water along with a 20-fold lower corrosion rate in comparison with the bare stainless-steel mesh,indicating their excellent stability in *** to the reported zeolite membranes for oil/water separation,the as-synthesized and hydrophobically modified W-MEL membranes shows competiti

关键词： Corrosion Dodecyltrimethoxysilane hexadecyltrimethoxysilane Membranes Oil/water separation Zeolite

MFI沸石纳米片及b轴取向MFI沸石薄膜的制备

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无机化学学报 2022年第9期38卷 1781-1789页

作者：宋文森 hammad saulat 颜韬吕金印杨建华鲁金明张艳大连理工大学化工学院吸附与无机膜研究所精细化工国家重点实验室大连116024

我们通过自下而上(bottom-up)的方法制备了高宽深比、高结晶度的b轴方向上超薄的MFI沸石纳米片,为制备b轴取向MFI沸石薄膜提供了基础。采用滑动涂覆法(slip coating method)在玻璃片载体上制备了厚度约为100 nm的b轴取向MFI纳米片晶种... 详细信息

我们通过自下而上(bottom-up)的方法制备了高宽深比、高结晶度的b轴方向上超薄的MFI沸石纳米片,为制备b轴取向MFI沸石薄膜提供了基础。采用滑动涂覆法(slip coating method)在玻璃片载体上制备了厚度约为100 nm的b轴取向MFI纳米片晶种层。采用无模板剂二次生长法,抑制晶种层面外孪晶生长,实现了晶种层的面内外延生长。在合成体系的nSiO_(2)∶nNa_(2)O∶nC_(2)h_(5)Oh∶nh_(2)O=1∶0.03∶1.3∶0.89、晶化时间48 h、晶化温度180℃时,制备了厚度约为200 nm的连续致密的b轴取向MFI沸石膜,与基于四丙基氢氧化铵(TPAOh)的常规合成溶液水热二次生长制备的MFI沸石膜相比,厚度降低了90%,并且保持了晶种层的b轴取向性。

关键词：二维材料 MFI沸石纳米片 b轴取向MFI沸石膜

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左冠状动脉病变亚型的伴随出现

世界核心医学期刊文摘（心脏病学分册） 2007年第2期3卷 41-42页

作者： Ahmad U. Javed M.A. fatimi S.h. 刘相飞 Department of Biological and Biomedical Sciences Faculty of Health Sciences Medical College Stadium Road Karachi-74800 Pakistan

目的:研究混合型左主干病变和左主干同等病变患者行外科血运重建术的风险状况。方法和结果:回顾分析1997年1月至2002年12月行冠状动脉搭桥术(CABG)患者的医疗记录。研究共纳入210例患者,其中30.5%(64例)为左主干病变,49.5%(104例)为左... 详细信息

目的:研究混合型左主干病变和左主干同等病变患者行外科血运重建术的风险状况。方法和结果:回顾分析1997年1月至2002年12月行冠状动脉搭桥术(CABG)患者的医疗记录。研究共纳入210例患者,其中30.5%(64例)为左主干病变,49.5%(104例)为左主干同等病变,20%(42例)为混合型狭窄病变。混合型左冠状动脉疾病与极高的术后死亡率相关。

关键词：左冠状动脉左主干病变冠状动脉搭桥术医疗记录血运重建术开胸探查月行风险状况体外循环时间