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--> 00:01.464\n大家好，\n\n00:01.613 --> 00:05.714\n今天跟大家分享一下肺脓肿的一些相关知识。\n\n00:06.863 --> 00:10.263\n我将从以下四个方面去介绍肺脓肿。\n\n00:10.913 --> 00:17.513\n首先是什么是肺脓肿病因与发病机制、症状与诊诊断。\n\n00:17.913 --> 00:18.438\n最后，\n\n00:18.438 --> 00:20.913\n我将介绍治疗与预防的一些方式。\n\n00:22.563 --> 00:23.464\n那首先，\n\n00:23.464 --> 00:24.964\n什么是肺脓肿呢？\n\n00:26.563 --> 00:30.813\n肺脓肿的定义是肺组织坏死形成的一些。\n\n00:31.000 --> 00:37.400\n脓腔肺脓肿是由于常见于肺组织坏死液化而形成的一些脓腔，\n\n00:37.799 --> 00:41.049\n通常是由细菌感染引起的，\n\n00:41.150 --> 00:44.250\n是呼吸系统最常见的疾病之一，\n\n00:44.700 --> 00:48.150\n它常见于免疫力低下的一些人群，\n\n00:48.500 --> 00:53.049\n如老年人长期卧床容易误吸的一些患者，\n\n00:53.250 --> 00:55.000\n从而导致肺部感染，\n\n00:55.200 --> 00:57.150\n进而形成肺脓肿。\n\n00:59.599 --> 01:00.950\n肺脓肿又可以。\n\n01:00.995 --> 01:02.296\n可以分为以下三类，\n\n01:02.546 --> 01:05.846\n首先最常见的是吸入性的肺脓肿。\n\n01:06.295 --> 01:11.945\n吸入性肺脓肿多因误吸口咽部分泌物或者胃内容物，\n\n01:12.096 --> 01:16.246\n常见于醉酒、昏迷、麻醉等情况下，\n\n01:16.596 --> 01:18.545\n病原体多为厌氧菌，\n\n01:18.996 --> 01:20.846\n多发于右侧的肺部。\n\n01:21.146 --> 01:24.096\n因为右主支气管较为陡直，\n\n01:24.545 --> 01:27.146\n误吸的物体容易进入右肺，\n\n01:27.346 --> 01:30.646\n从而导致炎症及脓肿的一些形成。\n\n01:31.512 --> 01:33.861\n其次是继发性的肺脓肿。\n\n01:34.262 --> 01:37.961\n继发性肺脓肿继发于其他肺部疾病，\n\n01:38.311 --> 01:42.211\n如支气管扩张、肺结核、肺癌等，\n\n01:42.512 --> 01:46.461\n因原有的疾病导致局部防御功能的一个降低，\n\n01:46.811 --> 01:49.311\n细菌感染之后会形成脓肿。\n\n01:49.711 --> 01:53.512\n支气管扩张的患者主要是因为气道引流不畅，\n\n01:54.012 --> 01:55.512\n容易反复感染，\n\n01:55.512 --> 01:57.311\n从而继发肺脓肿，\n\n01:57.461 --> 01:58.961\n影响生活质量。\n\n02:01.389 --> 02:02.139\n其次，\n\n02:02.239 --> 02:05.839\n最还有一种是血源性的肺脓肿，\n\n02:05.989 --> 02:11.539\n它是由于远处的感染灶的细菌栓子经血液循环进入肺部，\n\n02:11.839 --> 02:15.440\n引起小血管的栓塞、炎症和坏死。\n\n02:15.940 --> 02:21.139\n它多见于皮肤感染、骨髓炎等化脓性病灶的一个患者，\n\n02:21.539 --> 02:24.664\n出现了一个血行性的传播病原体，\n\n02:24.664 --> 02:25.990\n多为金葡菌，\n\n02:26.490 --> 02:30.990\n可多发于双肺原发性的肺脓肿。\n\n02:31.024 --> 02:36.623\n种常见由健康的个体并发肺实质的感染所致，\n\n02:37.173 --> 02:43.024\n而继发性的肺脓肿多多见于存在易感因素的患者。\n\n02:44.565 --> 02:46.766\n支气管阻塞手术后，\n\n02:47.365 --> 02:54.516\n我们以前都用坏死性肺炎或者肺坏疽来指代肺脓肿合并的肺炎，\n\n02:54.766 --> 02:57.815\n大多数肺脓肿是误吸的并发症，\n\n02:58.365 --> 03:01.641\n误吸会导致一处和多处的局部炎症，\n\n03:01.641 --> 03:03.916\n从而形成坏死和空洞。\n\n03:07.666 --> 03:11.115\n正常组织和肺脓肿的一些对比，\n\n03:11.216 --> 03:12.716\n在形态结构上，\n\n03:12.716 --> 03:13.815\n正常组织。\n\n03:13.891 --> 03:14.141\n时，\n\n03:14.391 --> 03:16.992\n肺组织通常呈现出海绵状，\n\n03:17.292 --> 03:18.341\n富有弹性，\n\n03:18.591 --> 03:22.841\n有肺泡、肺泡囊、细支气管等组成，\n\n03:22.992 --> 03:24.042\n结构完整，\n\n03:24.042 --> 03:25.091\n功能正常。\n\n03:25.442 --> 03:28.942\n肺脓肿在肺脓肿处的肺组织，\n\n03:29.091 --> 03:30.492\n它坏死液化，\n\n03:30.492 --> 03:31.542\n会形成空腔，\n\n03:31.792 --> 03:33.992\n周围还会存在炎性渗出，\n\n03:34.242 --> 03:37.742\n它往往会失去肺泡的一些正常结构和功能。\n\n03:38.242 --> 03:40.067\n然后在CT上的话，\n\n03:40.067 --> 03:43.391\n正常CT可以看到肺的纹理清晰。\n\n03:43.888 --> 03:45.238\n肺也透亮均匀，\n\n03:45.438 --> 03:47.438\n没有一个异常的密度影。\n\n03:47.587 --> 03:52.587\n而肺脓肿的CT经常可以看到圆形或者椭圆形的低密度影，\n\n03:52.787 --> 03:55.188\n它的边缘光滑或者毛糙，\n\n03:55.488 --> 03:57.388\n里面能看到一些液瓶，\n\n03:57.638 --> 04:01.938\n周围通常会有一些炎性浸润的影子。\n\n04:05.888 --> 04:10.837\n那到底是什么原因导致了肺脓肿的发生和发展呢？\n\n04:10.837 --> 04:13.837\n我们第二部分来讲解一下肺脓肿的。\n\n04:13.904 --> 04:20.053\n病因与发病机制首先是细菌感染途径，\n\n04:20.803 --> 04:25.104\n吸入性感染是肺脓肿最主要的一个病因，\n\n04:25.303 --> 04:28.104\n它常见于意识障碍的患者，\n\n04:28.354 --> 04:30.104\n如醉酒、昏迷，\n\n04:30.553 --> 04:37.104\n口咽部分的一些分泌物或者胃内容物会在无意识的情况下被吸入肺部，\n\n04:37.454 --> 04:40.053\n从而形成了一个感染源。\n\n04:41.403 --> 04:43.403\n而其中的厌氧菌是吸。\n\n04:43.940 --> 04:46.290\n吸入性肺脓肿的主要致病菌，\n\n04:46.489 --> 04:51.239\n它通常与需氧菌混合感染导致肺组织坏死。\n\n04:52.545 --> 04:59.246\n形成脓肿血液的细菌感染途径通常来源于远处的感染灶，\n\n04:59.496 --> 05:01.846\n它的细菌栓子掉落之后，\n\n05:01.946 --> 05:04.196\n经血液循环进入肺部，\n\n05:04.395 --> 05:06.145\n引起小血管栓塞，\n\n05:06.295 --> 05:07.670\n炎症和坏死，\n\n05:07.670 --> 05:08.596\n形成脓肿。\n\n05:08.946 --> 05:13.446\n金黄色葡萄球菌是血源性肺脓肿的主要致病菌，\n\n05:13.846 --> 05:15.946\n常导致多发性肺脓肿，\n\n05:16.096 --> 05:18.145\n病情进展极为迅速。\n\n05:19.295 --> 05:22.946\n继发性肺脓肿它常常继发于其他。\n\n05:23.011 --> 05:28.611\n的肺部疾病如支气管扩张、肺结核、肺癌等，\n\n05:28.962 --> 05:33.462\n因原有疾病导致患者的这个局部防御功能降低，\n\n05:33.812 --> 05:36.062\n细菌感染后形成脓肿。\n\n05:37.361 --> 05:41.661\n支气管扩张的患者主要是因为气道引流不畅而引起的感染。\n\n05:48.361 --> 05:51.161\n整个肺脓肿的发病过程如下，\n\n05:51.312 --> 05:52.911\n它首先会有。\n\n05:53.007 --> 05:54.858\n一个细菌的入侵和定值，\n\n05:55.308 --> 06:01.058\n细菌通过吸入血吸入途径、血源途径或者激发途径进入肺部，\n\n06:01.308 --> 06:03.907\n在肺组织内定植繁殖，\n\n06:04.308 --> 06:05.757\n引发炎症反应，\n\n06:05.808 --> 06:08.657\n从而导致局部组织充血水肿，\n\n06:08.907 --> 06:11.358\n细菌释放出毒素和酶，\n\n06:11.507 --> 06:13.558\n破坏肺组织的细胞结构，\n\n06:13.757 --> 06:17.108\n使得组织液化坏死并形成脓腔。\n\n06:17.808 --> 06:20.757\n第二步是炎症反应与脓腔的形成，\n\n06:21.157 --> 06:22.958\n肺组织在细菌感染。\n\n06:23.023 --> 06:23.299\n以后，\n\n06:23.299 --> 06:26.674\n白细胞大量聚集释放炎症介质，\n\n06:26.873 --> 06:29.273\n进一步加重了局部炎症的反应，\n\n06:29.324 --> 06:31.523\n导致组织液化坏死。\n\n06:31.674 --> 06:34.824\n坏死组组织逐渐形成脓腔，\n\n06:35.223 --> 06:37.373\n周围有炎性渗出包裹，\n\n06:37.574 --> 06:41.023\n脓腔内充满脓液和坏死组织的一些碎片。\n\n06:41.574 --> 06:43.424\n病情的进展和并发症，\n\n06:44.074 --> 06:48.273\n如果脓肿没有得到及时的一些治疗和控制，\n\n06:48.324 --> 06:52.174\n那肺脓肿的脓腔可以逐逐渐的增大增多，\n\n06:52.373 --> 06:52.973\n甚至。\n\n06:53.059 --> 06:54.760\n穿破胸膜形成脓胸，\n\n06:54.910 --> 06:57.559\n经支气管排出并形成空洞，\n\n06:58.410 --> 07:01.010\n或者会引起全身中毒的症状，\n\n07:01.010 --> 07:02.160\n如高热、寒颤，\n\n07:02.309 --> 07:06.609\n严重者可导致呼吸衰竭、败血症等并发症，\n\n07:09.760 --> 07:12.260\n那我们如何早期的去判断？\n\n07:12.955 --> 07:17.705\n脓肺脓肿的一些症状还有治症诊断呢。\n\n07:18.656 --> 07:19.355\n首先，\n\n07:19.355 --> 07:23.006\n肺脓肿的常见症状主要分为以下三种，\n\n07:23.256 --> 07:24.455\n首先是发热，\n\n07:24.656 --> 07:27.406\n肺脓肿的患者通常出现高热，\n\n07:27.656 --> 07:29.656\n体温可达39°以上，\n\n07:29.805 --> 07:31.006\n多为弛张热，\n\n07:31.305 --> 07:32.631\n持续时间较长，\n\n07:32.631 --> 07:34.506\n一般在一到两周左右。\n\n07:34.756 --> 07:38.455\n发热是机体对细菌感染的免疫反应，\n\n07:38.705 --> 07:42.855\n高热时患者可伴有寒战、出汗等症状。\n\n07:43.532 --> 07:46.432\n咳嗽又是肺脓肿的常见症状，\n\n07:46.582 --> 07:48.481\n它多为刺激性干咳，\n\n07:48.782 --> 07:50.532\n随着病情的进展，\n\n07:50.782 --> 07:53.381\n可以咳出大量的浓臭痰。\n\n07:53.881 --> 07:57.782\n浓臭痰是肺脓肿的一些一个特征性表现，\n\n07:58.131 --> 08:01.381\n痰液通常呈黄绿色、灰白色，\n\n08:01.582 --> 08:03.631\n伴有严重的恶臭味，\n\n08:03.731 --> 08:05.881\n提示有厌氧菌的感染，\n\n08:06.782 --> 08:10.032\n部分患者也可能会出现呼吸困难，\n\n08:10.231 --> 08:12.932\n尤其在肺脓肿脓腔较大。\n\n08:13.332 --> 08:15.182\n或者累积多个肺叶时，\n\n08:15.432 --> 08:17.432\n影响了肺的通气功能。\n\n08:17.881 --> 08:21.332\n呼吸困难可表现为气促、喘息，\n\n08:21.631 --> 08:24.381\n严重者需要吸氧辅助呼吸。\n\n08:24.582 --> 08:28.631\n这需要与心衰引起来的呼吸困难进行鉴别诊断。\n\n08:31.332 --> 08:33.007\n对于肺脓肿的诊断，\n\n08:33.007 --> 08:35.481\n我们通常以下几个方式，\n\n08:36.781 --> 08:39.281\n胸部CT检查是肺脓肿。\n\n08:39.875 --> 08:41.726\n判断的最重要手段，\n\n08:41.976 --> 08:50.226\n它可以清晰的显示脓肿的大小、形态、位置与周围组织的一些关系。\n\n08:50.226 --> 08:53.726\nCT可见圆形或者椭圆形低密度影，\n\n08:53.875 --> 08:55.976\n边缘光滑或者毛糙，\n\n08:56.176 --> 08:57.276\n内有液平，\n\n08:57.575 --> 08:59.976\n周围可有炎性浸润影。\n\n09:00.875 --> 09:01.676\n其次，\n\n09:01.976 --> 09:07.625\n我们通常还会对怀疑肺脓肿的患者进行血常规检查，\n\n09:07.976 --> 09:10.026\n可以发现白细胞总数。\n\n09:10.231 --> 09:12.882\n及中性粒细胞比例明显升高，\n\n09:13.132 --> 09:14.932\n提示有细菌感染。\n\n09:15.182 --> 09:19.781\n血常规检查还可以发现贫血、血、血小板减少等异常，\n\n09:20.031 --> 09:23.382\n提示病情的严重程度，\n\n09:23.481 --> 09:25.481\n判断其感染情况。\n\n09:26.531 --> 09:30.932\n痰液的检查可以发现大量的脓细胞和细菌，\n\n09:31.432 --> 09:32.606\n通过痰培养，\n\n09:32.606 --> 09:36.632\n我们可以去明确肺脓肿的致病菌种类，\n\n09:36.882 --> 09:39.531\n为抗生素的治疗提供依据。\n\n09:40.239 --> 09:48.989\n检验检查还可以发现厌氧菌、需氧菌等混合管感染有助于判断病情的一个复杂程度，\n\n09:52.840 --> 09:56.890\n那么如何去治疗与预防肺脓肿呢？\n\n10:00.440 --> 10:02.190\n对于肺脓肿的治疗，\n\n10:02.239 --> 10:05.539\n我们首选的还是抗生素治疗。\n\n10:05.789 --> 10:10.190\n我们会根据抗生素痰培。\n\n10:10.244 --> 10:13.643\n样的结果去选择敏感的抗生素。\n\n10:13.693 --> 10:24.994\n肺脓肿的初始的经验性抗生素治疗是为了降低肺脓肿破入气道、胸腔膜以及累积局部血管的风险，\n\n10:25.244 --> 10:29.943\n必要时我们会根据痰培养的结果和疗效调整初始治疗的方案。\n\n10:31.357 --> 10:33.408\n厌氧菌的培养非常难培养，\n\n10:33.408 --> 10:34.757\n很少进行药敏。\n\n10:34.958 --> 10:38.333\n所以我们对于所有肺脓肿的患者，\n\n10:38.333 --> 10:43.807\n经验性的抗生素治疗应当能够穿透肺实质，\n\n10:44.557 --> 10:48.658\n并覆盖严格厌氧菌和需氧菌链球菌的。\n\n10:49.107 --> 10:50.482\n对于大多数的患者，\n\n10:50.482 --> 10:54.658\n我们首选的抗生素可以选择贝塔内酰胺类的，\n\n10:54.658 --> 10:57.757\n和贝塔内酰胺酶抑制剂的青霉素，\n\n10:57.757 --> 11:01.307\n如氨苄西林舒巴坦碳氢。\n\n11:01.443 --> 11:03.744\n美西类的如亚胺培南、美罗培南等，\n\n11:03.994 --> 11:07.943\n这些选择的依据多数是基于体外的一些研究数据。\n\n11:08.193 --> 11:10.294\n如果患者对青霉素过敏，\n\n11:10.294 --> 11:13.643\n我们可以使用莫西沙星或者左氧氟沙星，\n\n11:13.893 --> 11:15.693\n也可以选择头孢曲松。\n\n11:16.443 --> 11:18.318\n对于青霉素过敏的患者，\n\n11:18.318 --> 11:21.994\n我们还是首选倾向于含有氟喹内酮的方案，\n\n11:22.193 --> 11:24.093\n这样生物利用度更高。\n\n11:24.393 --> 11:29.943\n克林霉素的一个单药治疗也可以作为过敏下的一个替代方案。\n\n11:30.343 --> 11:31.393\n但克林霉素。\n\n11:31.460 --> 11:33.835\n素治疗可能有失败的概率，\n\n11:33.835 --> 11:38.309\n因为有20%.30%的肺脓肿患者是革兰阴性菌，\n\n11:38.309 --> 11:39.859\n或者耐药的阳性菌。\n\n11:40.260 --> 11:43.409\n一旦我们获得痰培养的培养结果，\n\n11:43.409 --> 11:50.409\n我们应该迅速调整抗生素的治疗方案。\n\n11:50.809 --> 11:58.309\n上述大上述的经验性治疗的方案大多数是与厌氧菌和链球菌相关。\n\n11:58.510 --> 12:01.409\n如果检测出来其他的病原菌如。\n\n12:01.476 --> 12:06.401\n肺炎克雷伯菌或者金色葡萄杆金色葡萄球菌通常会调整，\n\n12:06.401 --> 12:07.776\n更加针对的方案。\n\n12:08.426 --> 12:14.325\n当当是对于疑似耐甲氧西林的金色葡萄酒菌，\n\n12:14.325 --> 12:19.375\n我们首选的做药物是头孢唑啉、奈氟西林和苯唑西林。\n\n12:19.575 --> 12:22.325\n对于耐甲氧西林的金葡菌的话，\n\n12:23.325 --> 12:26.625\n可以选择利奈血利奈唑胺、万古霉素等。\n\n12:27.625 --> 12:30.226\n达托霉素在肺部的活性不充分，\n\n12:30.226 --> 12:31.426\n我们不应我们。\n\n12:31.492 --> 12:32.942\n不常用于肺部的感染，\n\n12:33.642 --> 12:37.091\n一旦患者对于抗生素的常规流程，\n\n12:37.091 --> 12:39.442\n我们一般是2.3周左右。\n\n12:40.192 --> 12:43.142\n一旦患者退热且临床状况稳定，\n\n12:43.242 --> 12:45.992\n我们可以将静脉用药改为口服用药。\n\n12:46.341 --> 12:49.041\n一些患者通常有的快的话，\n\n12:49.041 --> 12:49.992\n只需要几日，\n\n12:50.892 --> 12:52.067\n慢一点的患者，\n\n12:52.067 --> 12:53.942\n其他患者可能需要1.3周。\n\n12:57.242 --> 13:01.442\n对于大较大脓肿或者抗生素治疗效果。\n\n13:01.520 --> 13:02.369\n不佳的患者，\n\n13:02.770 --> 13:09.369\n我们也可以去采用经皮引流或者外科的手术的方式将脓脓液引出。\n\n13:09.770 --> 13:12.020\n经皮穿刺引流的创伤较小，\n\n13:12.320 --> 13:15.020\n适合单发位置较浅的脓肿。\n\n13:15.669 --> 13:16.044\n嗯，\n\n13:16.044 --> 13:22.070\n外科手术引流适用于复杂性的脓肿以及多发性的一些脓肿。\n\n13:23.869 --> 13:30.320\n除了将除了引流脓液以及经验性的抗生素的一些治疗，\n\n13:30.520 --> 13:31.469\n通常还包。\n\n13:31.531 --> 13:33.731\n包括一些支持治疗，\n\n13:34.231 --> 13:35.682\n包括补充营养，\n\n13:35.781 --> 13:37.331\n维持水电平衡，\n\n13:37.632 --> 13:39.132\n纠正贫血等，\n\n13:39.281 --> 13:41.432\n增强患者的一个机体免疫力，\n\n13:41.531 --> 13:43.081\n促进病情的恢复。\n\n13:44.581 --> 13:46.331\n对于高热的患者，\n\n13:46.331 --> 13:51.182\n我们可以使用物理降温或者药物降温来缓解患者的不适，\n\n13:55.581 --> 13:58.781\n那么如何去预防肺脓肿的？\n\n13:59.286 --> 14:00.085\n发生呢，\n\n14:00.486 --> 14:02.935\n有以下三个注意方方向，\n\n14:03.286 --> 14:05.486\n首先是注意口腔卫生。\n\n14:05.835 --> 14:09.635\n注意口腔卫生是预防肺脓肿的重要措施。\n\n14:09.935 --> 14:11.585\n保持口腔清洁，\n\n14:11.736 --> 14:13.685\n定期刷牙漱口，\n\n14:13.935 --> 14:16.185\n减少口腔内细菌滋生。\n\n14:16.385 --> 14:20.585\n对于老年人、长期卧床者等高危的人群，\n\n14:20.935 --> 14:23.236\n我们应当加强口腔护理，\n\n14:23.585 --> 14:24.685\n防止误吸，\n\n14:25.135 --> 14:28.685\n并防止误吸内含有病原菌。\n\n14:29.786 --> 14:30.536\n其次，\n\n14:30.885 --> 14:33.185\n将预防呼吸道的感染，\n\n14:34.236 --> 14:37.835\n预防呼吸道的感染可以减少肺脓肿的发生。\n\n14:38.556 --> 14:39.306\n注意保暖，\n\n14:39.356 --> 14:40.505\n避免受凉，\n\n14:40.656 --> 14:42.755\n减少呼吸道感染的机会。\n\n14:43.156 --> 14:45.080\n在流感多发的季节，\n\n14:45.080 --> 14:46.856\n可以接种流感疫苗，\n\n14:47.005 --> 14:48.681\n增加机体免疫力，\n\n14:48.681 --> 14:50.156\n预防呼吸道感染，\n\n14:50.356 --> 14:52.806\n也可以去接种新冠疫苗，\n\n14:52.806 --> 14:56.356\n减少新冠肺炎的发生。\n\n14:58.255 --> 14:59.306\n其最后，\n\n14:59.455 --> 15:01.406\n积极治疗基础疾病。\n\n15:02.900 --> 15:04.799\n肺脓肿很继发性的，\n\n15:04.799 --> 15:08.599\n肺脓肿多数是由基础疾病引起的，\n\n15:09.599 --> 15:11.250\n积极治疗基础疾病，\n\n15:11.250 --> 15:17.650\n如支气管扩张、肺结核可以显著减少继发性肺脓肿的发生。\n\n15:18.000 --> 15:19.400\n要定期复查，\n\n15:19.700 --> 15:21.049\n遵医嘱治疗，\n\n15:21.250 --> 15:22.799\n控制病情的发展，\n\n15:22.950 --> 15:25.349\n降低肺脓肿的发生风险。\n\n15:28.294 --> 15:32.919\n那么今天跟大家分享的肺脓肿相关的知识就到这里，\n\n15:32.919 --> 15:33.794\n谢谢大家。\n\n","v0d47cg10004d60pj4aljht9r8d2pjgg",937,723,"2026-01-24 20:31:34","认识肺脓肿 - 症状、病因、诊断与治疗方法全解析  ","肺脓肿, 肺脓肿症状, 肺脓肿病因, 肺脓肿诊断, 肺脓肿治疗, 肺部感染, 呼吸系统疾病  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