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急性肝性ポルフィリン症(AHP)の症状 | Porphyria.jp
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class="block block-porphyriajp-top-level-title-block"> <div class="top-level-title-block"> <div class="top-level-title-block__inner"> <h1 class="top-level-title-block__title">症状</h1> </div> </div> </div> <div id="block-link-to-supervisor-page" class="block block-fixed-block-content block-fixed-block-contentlink-to-supervisor-page"> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p class="link-to-supervisor-page"><span class="link-to-supervisor-page__label">監修:</span><a href="/supervision">堀江 裕 先生<span class="link-to-supervisor-page__position">(島根県済生会江津総合病院 名誉院長、芝浦スリーワンクリニック・ポルフィリン症外来)</span></a></p> </div> </div> <div id="block-porphyriajp-content" class="block block-system block-system-main-block"> <article role="article" about="/symptom/AHP-symptoms" typeof="schema:WebPage" class="node node--type-page node--view-mode-full"> <span property="schema:name" content="AHPの症状" class="rdf-meta hidden"></span> <div class="node__content"> <div property="schema:text" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><h1>AHPの症状</h1> <p>急性肝性ポルフィリン症(acute hepatic porphyria:AHP)では、ヘム前駆体であるアミノレブリン酸(ALA)やポルフォビリノーゲン(PBG)などが蓄積することにより、神経障害が生じると考えられています。 <span class="br">腹痛を訴えて受診することが多く、9割以上の患者が腹痛を主訴に受診したとのデータもあります<sup>1</sup>。加えて、末梢神経系、中枢神経系、自律神経系などに1つ以上の症状がみられます。</span> <span class="br">また、AHP患者の25-35%に、低ナトリウム血症がみられることも明らかになっています<sup>1</sup>。</span></p> <div class="full-width-image-area"> <figure class="full-width-image-area__inner"> <figcaption class="full-width-image-area__caption">急性肝性ポルフィリン症<sup>∗</sup>の症状<sup>2-5</sup></figcaption> <picture> <source media="(max-width: 767px)" srcset="/themes/custom/porphyriajp/images/symptom/ahp-symptoms-sp.webp" type="image/webp"></source> <source media="(max-width: 767px)" srcset="/themes/custom/porphyriajp/images/symptom/ahp-symptoms-sp.png"></source> <source srcset="/themes/custom/porphyriajp/images/symptom/ahp-symptoms-pc.webp" type="image/webp"></source> <img alt="急性肝性ポルフィリン症の症状" height="990" src="/themes/custom/porphyriajp/images/symptom/ahp-symptoms-pc.png" width="1960" /> </picture></figure> </div> <p>日本でAHP患者を対象に行われた調査では、自覚的初発症状として腹痛が最も多く78.8%(278/353例)、次いで嘔吐が44.5%(157/353例)、便秘が22.9%(81/353例)にみられました<sup>5</sup>。 <span class="br">自覚的初発症状に、病型による大きな差異は認められませんでした。</span></p> <div class="image-box"> <figure class="scalable-figure"> <figcaption class="scalable-figure__caption">急性肝性ポルフィリン症の自覚的初発症状</figcaption> <div class="js-scalable-container"> <div class="scalable-content js-scalable-content"> <table class="basic-table basic-table--with-summary-column"> <caption class="basic-table__note"><span>AIP: 急性間欠性ポルフィリン症、</span><span>VP: 異型ポルフィリン症、</span><span>HCP: 遺伝性コプロポルフィリン症</span></caption> <thead> <tr> <th> </th> <th>AIP<br /> (198例中)</th> <th>VP<br /> (56例中)</th> <th>HCP<br /> (41例中)</th> <th>分類不明<br /> (58例中)</th> <th>計<br /> (353例中)</th> </tr> </thead> <tbody> <tr class="basic-table__colored-row"> <th>消化器症状</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>腹痛</th> <td>165</td> <td>37</td> <td>31</td> <td>45</td> <td>278</td> </tr> <tr class="basic-table__second-level-row"> <th>嘔吐</th> <td>76</td> <td>29</td> <td>26</td> <td>26</td> <td>157</td> </tr> <tr class="basic-table__second-level-row"> <th>便秘</th> <td>38</td> <td>14</td> <td>10</td> <td>19</td> <td>81</td> </tr> <tr class="basic-table__second-level-row"> <th>下痢</th> <td>8</td> <td>1</td> <td>4</td> <td>0</td> <td>13</td> </tr> <tr class="basic-table__colored-row"> <th>神経症状</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>脱力および運動麻痺</th> <td>25</td> <td>18</td> <td>13</td> <td>6</td> <td>62</td> </tr> <tr class="basic-table__second-level-row"> <th>四肢知覚障害</th> <td>23</td> <td>11</td> <td>10</td> <td>1</td> <td>45</td> </tr> <tr class="basic-table__second-level-row"> <th>言語障害</th> <td>1</td> <td>4</td> <td>1</td> <td>1</td> <td>7</td> </tr> <tr class="basic-table__second-level-row"> <th>嚥下障害</th> <td>1</td> <td>3</td> <td>1</td> <td>0</td> <td>5</td> </tr> <tr class="basic-table__second-level-row"> <th>痙攣</th> <td>5</td> <td>1</td> <td>4</td> <td>5</td> <td>15</td> </tr> <tr class="basic-table__second-level-row"> <th>意識障害</th> <td>1</td> <td>0</td> <td>1</td> <td>0</td> <td>2</td> </tr> <tr class="basic-table__colored-row"> <th>皮膚症状</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>日光紅斑</th> <td>0</td> <td>14</td> <td>3</td> <td>1</td> <td>18</td> </tr> <tr class="basic-table__second-level-row"> <th>色素沈着</th> <td>0</td> <td>11</td> <td>4</td> <td>0</td> <td>15</td> </tr> <tr class="basic-table__colored-row"> <th>暗褐色尿</th> <td>35</td> <td>16</td> <td>12</td> <td>11</td> <td>74</td> </tr> </tbody> </table> </div> </div> </figure> </div> <p>他覚的症状としては、末梢性運動麻痺、高血圧、頻脈、四肢知覚障害(表在性)などが確認されています。他覚的症状にも、病型による大きな差異は認められませんでした。 <span class="br">ポルフィリン症では、急性発作時に、骨髄性プロトポルフィリン症(EPP)以外の病型でみられるポートワイン尿ともいわれる尿の着色が特徴的とされています。しかしながら、暗褐色(赤色)尿がみられる頻度は半数以下で、353例中132例(37.4%)に過ぎないことが、国内のデータから明らかになっています<sup>5</sup>。</span> <span class="br">そのため、尿の着色の有無のみでの判断は難しく、検査結果の解釈には注意が必要です。</span></p> <p><a class="link-button" href="/examination/urinalysis"><span>「尿検査による急性発作時の診断」のページへ</span></a></p> <div class="image-box"> <figure class="scalable-figure"> <figcaption class="scalable-figure__caption">急性肝性ポルフィリン症の他覚的病状<span class="small-text">(全経過中にみられたもの)</span></figcaption> <div class="js-scalable-container"> <div class="scalable-content js-scalable-content"> <table class="basic-table basic-table--with-summary-column objective-symptoms-table"> <caption class="basic-table__note"><span>AIP: 急性間欠性ポルフィリン症、</span><span>VP: 異型ポルフィリン症、</span><span>HCP: 遺伝性コプロポルフィリン症</span></caption> <thead> <tr> <th> </th> <th>AIP<br /> (198例中)</th> <th>VP<br /> (56例中)</th> <th>HCP<br /> (41例中)</th> <th>分類不明<br /> (58例中)</th> <th>計<br /> (353例中)</th> </tr> </thead> <tbody> <tr class="basic-table__colored-row"> <th>腹部症状</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>圧痛</th> <td>52</td> <td>7</td> <td>9</td> <td>10</td> <td>78</td> </tr> <tr class="basic-table__second-level-row"> <th>イレウス</th> <td>42</td> <td>2</td> <td>4</td> <td>4</td> <td>52</td> </tr> <tr class="basic-table__colored-row"> <th>神経症状</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>末梢性運動麻痺</th> <td>102</td> <td>25</td> <td>15</td> <td>25</td> <td>167</td> </tr> <tr class="basic-table__second-level-row"> <th>四肢知覚障害(表在性)</th> <td>72</td> <td>15</td> <td>13</td> <td>18</td> <td>118</td> </tr> <tr class="basic-table__third-level-row"> <th>異常知覚</th> <td>23</td> <td>4</td> <td>2</td> <td>1</td> <td>30</td> </tr> <tr class="basic-table__second-level-row"> <th>深部反射亢進</th> <td>12</td> <td>1</td> <td>3</td> <td>1</td> <td>17</td> </tr> <tr class="basic-table__third-level-row"> <th>減弱消失</th> <td>54</td> <td>10</td> <td>8</td> <td>18</td> <td>90</td> </tr> <tr class="basic-table__second-level-row"> <th>病的反射</th> <td>5</td> <td>0</td> <td>2</td> <td>2</td> <td>9</td> </tr> <tr class="basic-table__second-level-row"> <th>意識障害</th> <td>53</td> <td>9</td> <td>11</td> <td>12</td> <td>85</td> </tr> <tr class="basic-table__second-level-row"> <th>痙攣、てんかん発作</th> <td>33</td> <td>5</td> <td>14</td> <td>11</td> <td>63</td> </tr> <tr class="basic-table__second-level-row"> <th>脳神経麻痺</th> <td>28</td> <td>5</td> <td>5</td> <td>5</td> <td>43</td> </tr> <tr class="basic-table__second-level-row"> <th>球麻痺</th> <td>40</td> <td>8</td> <td>1</td> <td>13</td> <td>62</td> </tr> <tr class="basic-table__second-level-row"> <th>膀胱直腸障害</th> <td>39</td> <td>2</td> <td>1</td> <td>1</td> <td>43</td> </tr> <tr class="basic-table__second-level-row"> <th>筋萎縮</th> <td>31</td> <td>5</td> <td>2</td> <td>1</td> <td>39</td> </tr> <tr class="basic-table__second-level-row"> <th>自律神経症状</th> <td>30</td> <td>8</td> <td>4</td> <td>5</td> <td>47</td> </tr> <tr class="basic-table__colored-row"> <th>精神障害</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>幻覚、妄想</th> <td>51</td> <td>4</td> <td>3</td> <td>4</td> <td>62</td> </tr> <tr class="basic-table__second-level-row"> <th>ヒステリー</th> <td>16</td> <td>0</td> <td>1</td> <td>0</td> <td>17</td> </tr> <tr class="basic-table__colored-row"> <th>循環器障害</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>高血圧</th> <td>87</td> <td>20</td> <td>11</td> <td>10</td> <td>128</td> </tr> <tr class="basic-table__second-level-row"> <th>頻脈</th> <td>85</td> <td>17</td> <td>10</td> <td>7</td> <td>119</td> </tr> <tr class="basic-table__colored-row"> <th>内分泌代謝異常</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>電解質異常(SIADH含む)</th> <td>45</td> <td>2</td> <td>2</td> <td>4</td> <td>53</td> </tr> <tr class="basic-table__second-level-row"> <th>糖代謝異常</th> <td>19</td> <td>2</td> <td>0</td> <td>2</td> <td>23</td> </tr> <tr class="basic-table__second-level-row"> <th>甲状腺機能異常</th> <td>6</td> <td>3</td> <td>1</td> <td>2</td> <td>12</td> </tr> <tr class="basic-table__colored-row"> <th>皮膚症状</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>日光紅斑</th> <td>0</td> <td>10</td> <td>3</td> <td>0</td> <td>13</td> </tr> <tr class="basic-table__second-level-row"> <th>色素沈着</th> <td>1</td> <td>19</td> <td>3</td> <td>1</td> <td>24</td> </tr> <tr class="basic-table__second-level-row"> <th>爪・指などの変形・欠損</th> <td>0</td> <td>0</td> <td>0</td> <td>0</td> <td>0</td> </tr> <tr class="basic-table__colored-row"> <th>その他</th> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr class="basic-table__second-level-row"> <th>肝障害</th> <td>45</td> <td>13</td> <td>6</td> <td>7</td> <td>71</td> </tr> <tr class="basic-table__second-level-row"> <th>暗褐色尿</th> <td>90</td> <td>19</td> <td>11</td> <td>12</td> <td>132</td> </tr> </tbody> </table> </div> </div> </figure> </div> <dl class="references"> <dt class="references__label">参考文献</dt> <dd class="references__content"> <ol class="references__list"> <li class="references__item"><span>Ventura P, Cappellini MD, Biolcati G, et al. <i>Eur J Intern Med</i>. 2014;25(6):497-505.</span></li> <li class="references__item"><span>Anderson KE, Bloomer JR, Bonkovsky HL, et al. <i>Ann Intern Med</i>. 2005;142(6):439-450.</span></li> <li class="references__item"><span>Puy H, Gouya L, Deybach JC. <i>Lancet</i>. 2010;375(9718):924-937.</span></li> <li class="references__item"><span>Balwani M. <i>Clin Adv Hematol Oncol</i>. 2016;14(11):858-861.</span></li> <li class="references__item"><span>近藤 雅雄, 矢野 雄三, 浦田 郡平. <i>ALA-Porphyrin Science</i>. 2012;1(2):73-82.</span></li> </ol> </dd> </dl> <ul class="node-pc-pager"> <li class="node-pc-pager__item node-pc-pager__item--next"><a href="/symptom/importance-of-differential-diagnosis"><span class="node-pc-pager__title">AHPにおける鑑別診断の重要性</span></a></li> </ul> <ol class="node-sp-pager"> <li class="node-sp-pager__item is-active"><span>AHPの症状</span></li> <li class="node-sp-pager__item"><a href="/symptom/importance-of-differential-diagnosis">AHPにおける鑑別診断の重要性</a></li> <li class="node-sp-pager__item"><a href="/symptom/triggers-for-acute-attacks">急性発作の主な誘因</a></li> <li class="node-sp-pager__item"><a href="/symptom/complication-risk">長期罹患に伴う合併症リスク</a></li> </ol> </div> </div> </article> </div> </div> </div> </main> <div class="layout-modal"> <div class="region region-modal"> <div id="block-modal-confirm" class="block block-fixed-block-content block-fixed-block-contentmodal-confirm"> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden 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