Dysphagia: causes, symptoms and treatment

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If we refer to its etymology, the word dysphagia comes from the Greek and is divided into two words, “dys” which means difficulty or alteration and “phag” (phagia) which means eating or swallowing. Dysphagia refers in the medical field to the difficulty in swallowing that some patients present. Normally, dysphagia occurs when swallowing certain solid foods, although some patients may also have difficulty swallowing certain liquids, and in more severe cases of this pathological condition, some people are not able to swallow at all.

The cause of dysphagia is in most cases of neuralgic or muscular origin, and can be quite painful. This alteration of the swallowing mechanism is more common in babies and older people. Dysphagia usually appears as a symptom or sign of other diseases. Although in some cases it may not accompany another disease and present as a pathological condition in itself. There are a number of underlying causes that can lead to swallowing difficulties, for example a sore throat.

If dysphagia occurs only temporarily and not more than twice, it is usually not serious, nor does it indicate that there is any pathological condition behind the difficulty in eating certain foods. However, if this swallowing problem is persistent, it is important to see a specialist to offer a diagnosis and possible treatment.

There are many different causes that can cause a swallowing disorder, the treatment of dysphagia will depend on the specific origin of the condition. In this article we will delve into dysphagia, its causes, symptoms and diagnosis, in addition to exposing all the causes that can cause swallowing difficulties.

  • We recommend you read: “The 20 most common nervous system diseases”

What is dysphagia?

Dysphagia is the medical term used to describe difficulty swallowing food or liquid. that some people show. Some people can’t swallow food alone, while others can’t swallow either solid or liquid food. While some people affected by this disease are unable to swallow at all.

The causes of dysphagia are varied, it can represent a symptom of an underlying disease or be a condition in itself. Typically, the causes of dysphagia have to do with diseases or conditions that affect the muscles and nerves, and the condition can be divided into three or two main categories, depending on the scientific literature. Esophageal dysphagia, which affects the esophagus, and oral dysphagia, which occurs in the throat. There is a third alteration, pharyngeal dysphagia, the origin of the pathology is in the pharynx and may be an underlying symptom of a neurological disease such as Parkinson’s. Most texts combine these last two and speak of oropharyngeal dysphagia.

Difficulty swallowing, which is the main symptom of dysphagia, is often accompanied by choking, coughing, and a feeling that something is stuck in the throat or chest. Dysphagia makes it difficult for a person to eat, and to take in enough calories and nutrients that he needs to meet all of his daily requirements. Over time, dysphagia can cause weight loss, as well as other serious complications that affect the body, such as malnutrition and dehydration.

The diagnosis of dysphagia includes different techniques that allow the speech therapist or swallowing specialist to determine which part is altered. The treatment of this condition includes pharmacological or surgical treatment that will depend on the type of dysphagia and the underlying cause.

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Causes of dysphagia

Problems originating in the throat or esophagus are the most likely cause of swallowing difficulties. Mainly, there are two types of dysphagia: oropharyngeal and esophageal dysphagia. Depending on the type of dysphagia, the origin of the disease may be different.

1. Oropharyngeal dysphagia

Patients who have oropharyngeal dysphagia have trouble swallowing, cough when they eat, and may regurgitate food through their nose. In this type of dysphagia, the food does not reach the esophagus correctly and remains in the throat and pharynx from where it has to be expelled. When swallowing patients, they can choke and choke. They may also have a sensation of food or liquid going down the trachea or up the nose. This poor conduction of liquids can cause pneumonia.

Some disorders can affect swallowing, such as multiple sclerosis, muscular dystrophy, and Parkinson’s disease. Swallowing can also be affected by long-term neurological damage or nerve damage caused by stroke or spinal cord injury. Zenkers diverticulum is a small pouch that forms in the throat and causes difficulty swallowing, gurgling sounds, bad breath, and frequent coughing or throat clearing. Some cancers and cancer treatments can also cause difficulty swallowing.

2. Esophageal dysphagia

Patients with esophageal dysphagia have difficulty with the process of peristalsis that begins in the esophagus. Esophageal dysphagia makes it difficult to move food down the esophagus. Patients with esophageal dysphagia have a sensation of food sticking to or getting stuck in the esophagus. Esophageal dysphagia responds to different causes that affect the esophagus in a different way.

  • achalasia: In a condition known as achalasia, the muscles of the esophagus are unable to relax and let food pass, causing food to back up into the throat. The walls of the esophagus may also have weakened muscles, which can worsen over time.

  • diffuse spasm: After swallowing, the upper part of the esophagus may spasm uncontrollably. This condition is called diffuse spasm and it affects the involuntary muscles in the lower part of the esophagus.

  • esophageal stricture: Stenosis refers to the loss of diameter of a channel. A narrow esophagus can trap large pieces of food.

  • esophageal tumors: Esophageal tumors can cause the esophagus to narrow, which can make swallowing progressively more difficult. Scar tissue and tumors can also cause narrowing of the esophagus.

  • jam foreign bodies: Food or other objects can also get stuck in the throat or esophagus. It is a problem that can occur in older adults who wear dentures or in people who have difficulty chewing food.

  • esophageal ring: There is a narrow area at the bottom of the esophagus that can cause problems swallowing solid food.

  • acid reflux: Damage to the tissue of the esophagus caused by acid reflux can lead to narrowing, and scarring, of the lower part of the esophagus.

  • Eosinophilic esophagitis: It is a condition that is believed to be related to a food allergy, caused by an excess of cells called eosinophils in the lower part of the esophagus.

  • scleroderma: When the tissue of the esophagus is injured, scars develop that replace the original tissue, the scars cause the organ to lose part of its functionality. In this case, the sphincter stops working properly and the acid can leak back into the esophagus, causing a series of damages and heartburn.

  • Radiotherapy: Radiation therapy kills cancer cells and can cause scarring and inflammation of the esophagus, causing other problems and difficulty swallowing.

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Symptoms

Patients with dysphagia are often unaware of the diseaseThey simply think that this difficulty swallowing may be due to inflammation or something less serious. In these mild cases, dysphagia goes unnoticed, but without treatment, the chance of aspiration pneumonia (an infection of the lungs that can occur from inhaling saliva or food particles) increases. Not being diagnosed with dysphagia can also cause malnutrition and dehydration.

Symptoms of dysphagia mainly include choking on food, difficulty swallowing, and the feeling that food is stuck in the mouth, throat, or chest (behind the breastbone). When swallowing, a person may cough or gag. I might also drool. Food or stomach acid may back up into the esophagus and even the throat. The dysphagia patient frequently presents with heartburn, as the flow returns again and again. In some conditions, patients may present with hoarseness, unexplained weight loss and recurrent pneumonia. Some patients may feel that they cannot control their saliva.

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Treatment

The treatment of dysphagia will depend on the underlying cause of the condition.

esophageal dysphagia

Treatment of esophageal dysphagia includes dilation of the esophagus, pharmacological treatment, diet, and surgery.

  • dilation of the esophagus: In the case of tightness of the sphincter muscles (achalasia) or narrowing (stenosis), esophageal dysphagia can be treated with dilation of the esophagus, a balloon fed through an endoscope to expand the esophagus, or stretching the esophagus with multiple hoses

  • Pharmacotherapy: Reflux can be treated with prescription medications taken by mouth to reduce stomach acid. Pharmacological treatment may have to be followed for a long period of time. Esophageal spasm can be relaxed with muscle relaxants and corticosteroids can be used for eosinophilic esophagitis.

  • Diet: Diet can also help in certain conditions. Depending on the cause of the difficulty swallowing, the doctor may include a particular diet as treatment. In the case of eosinophilic esophagitis, it can be included in the diet as part of the treatment.

  • Surgery: Some diseases of the esophagus (a tumor, achalasia, pharyngoesophageal diverticulum) require surgery to open the esophageal tract.

Oropharyngeal dysphagia

To treat oropharyngeal dysphagia, you can go to a speech therapist or a specialist in swallowing pathology. Swallowing exercises can help, on the one hand, the muscles involved in the swallowing process and, on the other hand, they can stimulate the nerves that trigger the swallow reflex that are working incorrectly.

There are also techniques that can be learned to swallow better. Ways to get food to the mouth more efficiently or how to position the body and head to aid swallowing can be learned. If dysphagia is caused by problems that affect the nervous system and nerves, such as Parkinson’s or Alzheimer’s disease, exercises and new techniques to help swallowing may be effective.

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