We are the combination of four hospitals: the General Hospital, the Children’s Hospital, the Women’s Hospital and the Traumatology, Rehabilitation and Burns Hospital. We are part of the Vall d’Hebron Barcelona Hospital Campus: a world-leading health park where healthcare plays a crucial role.
Patients are the centre and the core of our system. We are professionals committed to quality care and our organizational structure breaks down the traditional boundaries between departments and professional groups, with an exclusive model of knowledge areas.
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The commitment of Vall d'Hebron University Hospital to innovation allows us to be at the forefront of medicine, providing first class care adapted to the changing needs of each patient.
The thyroid gland actively captures iodine for the synthesis of thyroid hormones. If radioactive iodine is administered, the weak radiation released can be detected and reveal information about the gland’s condition.
The test takes advantage of the affinity that the thyroid gland has for iodine. This affinity is increased in the case of hyperthyroidism, which is the situation in which scintigraphy is most useful.
To determine the shape, size and location of the thyroid gland. It can also detect nodules or areas of hyperactivity or hypoactivity.
A slightly radioactive isotope of iodine is injected intravenously. When it is captured by the thyroid gland, a gamma camera detects the gamma radiation from the iodine taken in by the thyroid gland and gives us an image of the gland and its more and less active areas.
Although a radioactive substance is used, the level of radiation is very low. It is not recommended in pregnant women.
An ultrasound can be useful in detecting nodules, but it does not given an idea of the level of activity in the same way as scintigraphy does.
Haematological disease characterised by the growth of ganglia with or without an increase in the number of white blood cells in the blood. It may also be accompanied by weight loss, burning pain, excessive sweating or increased frequency of infections.
Lymphomas are a very diverse group of diseases within the field of oncology. The cancer cell of a lymphoma is the lymphocyte, the main cell in the patient’s immune system, the functions of which are defence against infections and tumour surveillance.
Lymphocytes, alongside other cells, form the population of white blood cells or leukocytes in the blood. According to their function in the immune system, lymphocytes may be B, T or NK type. For this reason, the lymphomas that derive from them are also B, T and NK type.
The World Health Organization (WHO) classifies them into two large groups: Hodgkin’s lymphoma and Non-Hodgkin’s lymphoma, and these two groups currently include more than 60 different types of lymphoma.
Lymphocytes are mainly found in the blood and in the lymphatic organs: ganglia, spleen and bone marrow, but as they are cells that circulate in the blood, they can actually be found in any organ of the body, as their defence function is necessary throughout the body. For this reason, although it is more frequent in the lymphatic organs, a lymphoma can occur in any organ of the body: the skin, the digestive tract, the central nervous system, etc.
The symptoms depend on whether the type of lymphoma that the patient has is aggressive or indolent:
Aggressive lymphomas are diseases that progress rapidly and always bring about symptoms, because the tumour lymphocytes multiply at a high rate. The symptoms are rapid growth of ganglia, spleen and/or tumour masses, weight loss, excessive sweating, fever and/or unexplained burning pain. If one of the ganglia or tumour masses grows near an organ, it may compress it and symptoms may also appear that lead to suspicion. This type of aggressive lymphoma always needs preferential treatment when it is diagnosed.
In contrast, indolent lymphomas are those in which the enlargement of the ganglia, spleen or tumour masses is very slow. Most patients do not have any symptoms of the disease and can be monitored without treatment. Only in the event that, at any time, node growth and/or the onset of symptoms is observed, would it be necessary to treat the patient, which is why monitoring is essential in all patients with lymphoma, whether or not they have symptoms.
Lymphomas are not very common diseases compared to other types of tumour. Non-Hodgkin’s lymphomas are the 6th most common cause of cancer in Europe, comprising only 4% of all annual cases, whilst Hodgkin’s lymphoma is even rarer: 1% of all annual cancers. Lymphomas are most common in males and in older people, with the greatest incidence occurring between 70 and 80 years old. In younger patients, Hodgkin’s lymphoma is more common, as well as some subtypes of non-Hodgkin’s lymphoma.
The incidence of both types of lymphoma has increased over the last 20 years and is expected to continue to increase.
The factors associated with greater risk of developing a lymphoma are not as well known as other types of cancer, but some types of lymphoma appear to be associated with viral infections, certain professions, exposure to toxic substances, immune system alterations or ionising radiation. Although several cases of lymphoma may be diagnosed in the same family, the actual risk cannot be predicted in relatives of a patient with lymphoma, and therefore screening tests are not helpful.
To diagnose a lymphoma, a lymph node or suspected tumour mass biopsy is required. The biopsy confirms or rules out the suspicion and identifies the type of lymphoma according to WHO criteria.
The extent of the disease and possible individual risk factors are then studied and the type and intensity of treatment is decided. Laboratory tests on blood and bone marrow, a complete physical examination and imaging tests are performed to assess all possible locations of lymphoma, usually CT or PET-CT scans. If there is also a suspicion of lymphoma in other less common organs, additional tests may be necessary (for example, an endoscopic study if intestinal disease is suspected, or a skin biopsy if it is thought that the lymphoma may affect the skin, etc.).
The treatment of lymphomas is based on chemotherapy, which can be accompanied in specific cases by targeted radiation therapy aimed at a localised area to intensify the effect of treatment. In B lymphomas, chemotherapy is combined with a monoclonal antibody, rituximab, which makes it more effective. In some types of lymphoma, after treatment it may be necessary to add a strategy to prolong the response obtained, such as bone marrow transplantation or maintenance treatment.
The type of treatment is personalised according to the type and spread of the lymphoma, the characteristics of the patient, such as age and general health, and whether the expectations are that the disease may be cured or that only palliative care may be given.
Treatment of lymphoma may also be done in clinical trials, where new treatment options are investigated that may improve the outcomes of current treatments, or offer options to patients whose disease has not responded or has recurred after treatment was received. Your haematologist will advise you on which trials are available and which are best suited for you.
The thyroid gland, which is located in the anterior part of the neck and is shaped like a butterfly, produces thyroid hormones, which regulate the metabolism of the entire human body. They therefore influence, for example, our temperature and heart rate. The main causes of hyperthyroidism are: Graves’ disease (when an antibody against the body’s own thyroids is produced), a toxic multinodular goiter (makes too much thyroid hormone), and thyroiditis (inflammation of the thyroid of unknown origin).
The most common symptoms are altered heart rate, feverish temperature, nervousness and sweating, dry skin and unexplained weight loss.
It can affect people of all ages, but particularly women from adolescence to menopause.
Hyperthyroidism is detected by finding thyroid hormones in the blood, as well as the pituitary hormones tasked with regulation of thyroid hormones.
Treatment is aimed at reducing the action of excess thyroid hormones. Drugs are used that antagonise the hormones, usually orally. Drugs are also prescribed to slow heart rate. In some cases, radioactive iodine is administered to partially deactivate the hormone-producing thyroid cells in a controlled manner.
The most common test is a blood test. Other additional tests include thyroid scintigraphy and thyroid ultrasound.
In order for the thyroid gland to function normally, moderate consumption of iodised salt is recommended, as iodine is an essential component of thyroid hormones.
Alzheimer’s disease (AD) is the most common neurodegenerative disease worldwide. First described in 1906, it was known for years as senile dementia, but today we know that most cases of senile dementia are AD. WHO data states that it affects over 50 million people worldwide and this is set to triple by 2050. It is the main cause of disability in the elderly and the second specific cause of death in Spain.
In certain areas of the brain of someone with Alzheimer’s, two proteins (amyloid-beta and tau) are progressively produced over several years, forming deposits that eventually damage and destroy the neurons, leading to the progressive loss of higher-level cognitive brain functions such as: memory, language (aphasia), the ability to perform learned motor functions (apraxia), and to recognise different sensory stimuli (agnosia), reasoning and judgement, and changes in mood, behaviour and personality. Although the etiology of the disease is unknown, we do know of many factors that contribute to its appearance.
AD manifests in various ways. The signs and symptoms are specific to each individual and the characteristics of how the dementia develops will be different for each person.
Most patients (85% of cases) present the typical form (amnestic or hippocampus), which starts with the symptom of episodic progressive memory loss in relation to recent events and difficult taking in new information, and thereby losing the ability to adapt to new situations. Discrete constructional apraxia. Loss of fluidity of speech with normal comprehension. Early and persistent depression, anxiety or apathy (most common), with a substantial decline in initiative, motivation and interest, and with indifference and passivity.
In the mid stages, the disease presents loss of remote memory. Temporal and spatial disorientation. Ideomotor and ideational apraxia occur as well as constructional apraxia. Speech continues to worsen and comprehension issues are added to the loss of fluidity and anomia. Visual and body image agnosia (somatagnosia) develops. The mid stages are when sleep and psychiatric disorders are most evident, including becoming agitated at night, being restless, delirium (being unable to distinguish what is reality: delusional jealousy, confusing TV programmes with real life) and hallucinations (false sensory perceptions: hearing voices, seeing insects).
In the late stages, patients present severe agnosia, a loss of bladder and bowel control, become mute or almost mute, and present motor function alternations such as overall stiffness and a stooped posture. Approximately 10% present epileptic seizures. All patients show obvious weight loss during this final stage.
In around 15% of patients with AD, memory may be relatively preserved until the late stages. These are atypical forms or variants (without memory loss in the early stages) which may present in three forms: with behavioural or personality changes, with visuospatial alterations, or with changes to language as the earliest and predominant symptom of the disease. As it progresses, the other symptoms described as the typical form of the disease also appears. These atypical forms of AD are more common in cases where the onset occurs at a younger age.
Daily activities (DA) are progressively affected: first there is a reduction in work and social activities (advanced daily activities); followed by changes to everyday activities (handling domestic objects, money, cooking, housework), and in the late stages, basic daily activities are affected (washing, dressing, eating, bladder and bowel control). In the final stage, patients enter a vegetative state and die as the result of an intercurrent illness: the time from diagnosis to death is usually around » 5-10 years.
The prevalence and incidence of the disease increases after 65 years of age. It therefore affects 5% of the population over 60, 20% of those over 80 and 30% of those over 90. In Spain there are 800,000 people with the condition. The real figure is undoubtedly much higher, however, as the first symptoms are sometimes difficult to distinguish from those that naturally appear with age. For this reason it is an underdiagnosed disease, with around 1 in 3 people with AD believed to be undiagnosed.
Fewer than 5% of cases of AD are hereditary. This is known as familial or inherited AD and occurs through autosomal dominant inheritance. The clinical picture includes an earlier onset of the condition (before 65 years old) and a faster evolution.
The remaining 95% (sporadic AD) present the combination of risk factors for the development of the disease together with genetic alterations, together making the patient susceptible to the disease.
Apart from genetic factors, other risk factors for developing the disease are: ageing; gender (from 65 it is more common in women); vascular risk factors such as high blood pressure, diabetes or obesity; lifestyle (smoking, alcohol, lack of physical activity, lack of intellectual activity, little social interaction); previous head injuries, and chronic sleep disorders. People with Down syndrome (trisomy 21) have an extra copy of the gene that encodes the amyloid precursor protein (APP) making them more susceptible to AD at a younger age. Chronic sleep problems increase the risk of AD. Interrupted sleep increases levels of the amyloid-beta and tau protein.
Due to the fact that pathological alterations (amyloid deposit following tau) begin in the brain 15-20 years before symptoms appear, there are currently considered to be 3 stages of the disease:
Although there is currently no cure for the disease, there are treatments that can delay or slow the progression of the disease for a time, improving quality of life for these people. Drug treatments are: cholinesterase inhibitors (rivastigmine donepezil, galantamine) that act to facilitate cholinergic neurotransmission and are licensed for the symptomatic treatment of light or moderate AD, and memantine, a non-competitive glutamatergic NMDA receptor antagonist, which decreases levels of glutamate (an excitotoxin that destroys neurons when released chronically and in excess) and is licensed for the mid and late stages of the disease.
In addition to these treatments, proper management of lifestyle factors is very important, such as: correcting any hearing loss, reducing smoking and drinking, proper management of blood pressure and diabetes, a balanced diet, avoiding obesity, doing regular physical activity, preserving and encouraging social contact. Together with the above, cognitive stimulation is useful during a large part of the progression of the disease.
There are currently 400 studies assessing the efficacy and safety of different treatments in patients with AD.
Known preventions strategies work on the risk factors for the disease: healthy habits, controlling vascular risks (high blood pressure, diabetes, etc.), a higher level of education, changes to lifestyle (essentially increasing physical activity) giving up toxic habits (smoking and drinking). All of the above can reduce cases of AD by 35-40%, or at least delay its onset.
Education and mental activity stimulate the connections in the brain and increase the cerebral reserve capacity, so it is very important to remain mentally active.
The Dementia Unit in the Neurology department is in charge of diagnosing and looking after patients with Alzheimer’s. The unit includes neurologists with expertise in diagnosing and managing the different pathologies that can occur with dementia (changes to cognitive and behavioural functions that result in changes to daily life) as the main manifestation. Neuropsychologists, nurses and social services and healthcare staff also play a very important role in the Unit.
Other units and departments involved in the diagnosis and monitoring of these patients are: Primary Care, Nuclear Medicine, Neuroradiology, Psychiatry, Pathological Anatomy, Genetics.
The core of the Teaching Unit is provided by the Radiopharmacy Unit, with participation from the Nuclear Medicine and Pharmacy departments, the Laboratories and the Radiation Protection Unit.
Radiopharmacy training itinerary
Radiopharmaceuticals are used in Nuclear Medicine as contrast liquids which are injected into patients intravenously to enable non-invasive internal observation. In this way, molecular imaging of the body or the pathology that is being studied can be obtained. Radiopharmacy as a medical specialisation therefore deals with the study of physical, pharmaceutical, chemical, biochemical and biological aspects of radiopharmaceuticals.
Nuclear Medicine is a medical specialisation dedicated first and foremost to patient diagnosis through the use of substances containing radioisotopes, and which primarily provides information about the body’s functioning. Treatment with non-encapsulated radioactive sources is also within its scope.
Nuclear medicine training itinerary
It is a cancer found in the bones and soft tissue. Ewing's sarcoma is the second most common cancer in children, and normally occurs between ten and twenty years old. It is also more common in males than in females. Ewing's sarcoma and primitive neuroectodermal tumours (PNET) are cancers encompassing different types of malignant tumours that share a common chromosomic abnormality. Ewing’s tumours are made up of small undifferentiated cells and tend to be most commonly found in the long bones of the leg or arm, in the flat bones of the ribs and pelvis, or in the spine. They may also occur in any other bone or in soft tissue.
Ewing's tumours located in soft tissue are called extraskeletal Ewing’s sarcoma. They tend to be found in the thigh, pelvis, parts of the spine, the chest wall and the foot.
Primitive neuroectodermal tumours in bones and soft tissue are the least common type of Ewing’s sarcoma. They are made up of immature nerve cells.
The most common symptoms of Ewing’s sarcoma are:
There may also be a lump or swelling around the affected bone or tissue. During diagnosis it is very common to discover a pathological fracture (a non-traumatic fracture) due the fact that the tumour has weakened the bone. Weight loss and fever are other very common symptoms of this kind of tumour.
Malignant neoplasms in children and teenagers are rare, but they are one of the most important causes of morbidity and mortality in these age groups. Ewing’s sarcoma represents 3 % of cancers diagnosed in children throughout Spain. Every year there are around 30 new cases in children under 14 years of age.
If a child shows symptoms of this sarcoma, the doctor will carry out several diagnostic tests which may include:
These tests will help to determine the size and location of the tumour and whether it has spread to other parts of the body.
Three kinds of treatment are often used to treat Ewing’s tumours. Chemotherapy is always used. In addition, surgery (whether to save or amputate the limb) and radiotherapy are used for local control of the tumour. The type of treatment depends on the child's age, the location of the tumour and whether it has spread to other parts of the body.
There are currently no measures to prevent this kind of tumour.
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