川村クリニック千葉市 緑区 あすみが丘 土気駅前すぐ 内科・胃腸科 楽な鼻から胃カメラ(経鼻内視鏡検査)の川村クリニック
■院長の役に立つ話  〜逆流性食道炎について〜 一覧へ戻る
代表的胃腸疾患の一つで、近年増加傾向にある逆流性食道炎について見ておこう。以前は中高年の女性に多い病気とされていたが、近年老若男女問わず増加傾向にある。放置すると食道癌発症のリスクもあるコワイ病気だ。
現在、プロトンポンプインヒビター(PPI)という優れた薬剤があるので、手術が必要となるケースは極めてまれだ。

Your surgeon may perform a fundoplication to treat gastroesophageal reflux disease or to repair a hiatal hernia.

Digestion begins in the mouth, has teeth break food into smaller pieces.

Saliva releases digestive enzymes.

When food is swallowed it enters the esophagus, a long muscular tube that carries food from the mouth to the stomach for further digestion.

Contractions called peristalsis push food down the esophagus.

At the bottom of the esophagus, food passes through a muscular valve called the lower esophageal sphincter or LES and into the stomach.

The digestive juices secreted by the stomach are highly acidic.

When the stomach contracts to move the food into the intestine, the LES closes tightly in order to prevent these acidic juices promoving back into the esophagus or it can cause damage.

A breathing muscle called the diaphragm separates the chest from the abdomen.

To reach the stomach, the esophagus passes through the diaphragm at a point called the hiatal ring.

If you have gastroesophageal reflux disease or GERD, your LES does not close properly, allowing acidic stomach contents to flow backward into your esophagus.

If GERD is not treated, it can lead to a variety of esophageal problems including ulcers, bleeding, strictures or narrowings and Barrett's esophagus which is the abnormal growth of intestinal type cells in the esophagus that can lead to cancer.

If you have a hiatal hernia, a portion of your stomach is protruding into your chest cavity through the opening and your diaphragm.

A hiatal hernia can affect the LES and increase the risk in severity of GERD.To begin your procedure and IV line would be inserted into your arm to provide fluids and medication.

A catheter may be placed into your bladder to drain urine.

You’d be given general anesthesia which will put you to sleep through the entire procedure.

Once you’re asleep, a breathing tube would be inserted through your mouth and into your wind pipe to help you breathe during the operation.

One of two methods may be used for a fundoplication.

In the traditional open procedure your surgeon would begin by making an eight inch incision in the abdomen to expose the stomach and lower esophagus.

After separating it from nearby structures, your surgeon would wrap the fundus or upper part of the stomach, around the lower esophagus and stich it into place.

This wrap acts as a belt which tightens and strengthens the LES.

In the laparoscopic procedure, your surgeon will begin by making five small keyhole incisions, each about one-half inch long in your abdomen.

Through one incision, your surgeon will insert the laparoscope which is the long thin tube equipped with the light and a camera.

The camera sends images to a video screen for the surgeon to view.

Gas will be pumped in to inflate your abdomen to enable the surgeon to see you internal organs more clearly.

Through the other incisions your surgeon will use instruments to detach the fundus of your stomach from its surroundings,  wrap it around your lower esophagus and stich it into place.

If you have a hiatal hernia, your surgeon will pull the herniated part of the stomach, back into place in the abdomen, and tighten the hiatal ring in the diaphragm to prevent another hernia.

This can be done through either an open or laparoscopic procedure.

To complete the surgery, the abdominal incisions are closed with stiches or stables.

When you awake from surgery, you will find a small tube passing through your nose and into your stomach.

This tube helps remove fluids and gas from the side of the surgery and as usually removed within two days.

You will be encouraged to get out of bed and begin walking, the same day of surgery.

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胃食道逆流症や食堂裂孔ヘルニアの外科的治療では、胃底皺襞形成術が行われる場合が多い。

消化は口腔内で始まり、歯によって食物は細かく砕かれる。

唾液腺は消化酵素を分泌する。

飲み込んだ食物は食道(長い筋肉質のチューブ)を通って、胃まで送られさらに消化されていく。

蠕動運動と呼ばれる収縮によって、食物は食道下部へと押し出される。

食道下端において、食物は下部食道括約筋(LES)と呼ばれる筋肉性の弁を通り胃へと運ばれていく。

胃によって分泌される消化酵素は強い酸性を示す。

胃が収縮し、食物が小腸へと移動すると、LESは固く閉ざされ、胃酸が食道へと逆流し食道が損傷されないようにする。

横隔膜と呼ばれる呼吸筋は胸部と腹部を分けている。

食道は裂孔輪と呼ばれる地点で横隔膜を貫通し胃に至る。

胃食道逆流症(GERD)があると、LESはうまく機能せず、胃酸が食道内へと逆流する。

GERDを放置すると、食道出血、食道潰瘍、食道狭窄、そしてバレット食道など、さまざまな病気を起こしてくる。

特にバレット食道では、食道に腸上皮様の変化が起こり、癌へと進展する可能性がある。

食道裂孔ヘルニアとは、胃が横隔膜の開口部から胸腔側へ飛び出してくる病気だ。

この病気はLESを犯し、GERDを重症化するため、治療が必要となる。

(以下省略。食道裂孔ヘルニアの外科療法について書かれている)