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EN
Lung cancer is associated with an increased risk of venous thromboembolism, including pulmonary embolism. In some situations, clinical deterioration in patients with lung cancer accompanied by elevated pressure in the right ventricle, usually measured by commonly used echocardiography, may support the diagnosis of pulmonary embolism. However, there are many other causes of increased pressure in the right ventricle in such patients, for example: progression of cancer, pre-existing lung diseases, surgical resection of pulmonary tissue, pnemotoxicity of radiotherapy or concomitant diseases of the left heart. The article presents 2 clinical cases of patients with lung cancer, in which elevated pressure in the right ventricle was resulted from other causes and accompanied the progression of cancer, despite the clinical picture suggesting a pulmonary embolism. Increased pressure in the right ventricle and usually associated pulmonary hypertension, significantly worsen already poor prognosis of patients with lung cancer. The differential diagnosis should, therefore, take into account the whole clinical picture, excluding venous thromboembolism as an important cause of pulmonary hypertension, but also take into account other potential factors to be able to make the right diagnosis and implement optimal treatment as early as possible.
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2014
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vol. 4
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issue 4
6-18
EN
Fetal ductal constriction is a potentially severe functional alteration, often causing right ventricular overload and insufficiency, tricuspid regurgitation and neonatal pulmonary hypertension. Classically, maternal administration of indomethacin and/or other nonsteroidal antiinflammatory drugs interfere in prostaglandin metabolism, leading to ductal constriction. However, many cases of fetal ductal constriction, as well as of persistent neonatal pulmonary artery hypertension, remain without an established etiology, being referred as “idiopathic”. In recent years, a growing body of evidences has shown that herbs, fruits, nuts, and a wide diversity of substances commonly used in daily diet, because of their high content of polyphenols, have definitive effects upon the metabolic pathway of inflammation, with consequent inhibition of prostaglandins synthesis. This anti-inflammatory action of polyphenols, when ingested during the third trimester of pregnancy, may interfere with the dynamics of fetal ductus arteriosus flow and cause ductal constriction. This review has the purpose to approach these new evidences, which may influence dietary orientation during pregnancy.
EN
Pulmonary hypertension (PH) is a rare, incurable disease. In children, its most common form is the pulmonary arterial hypertension (PAH), caused by congenital heart diseases or occurring as the idiopathic/hereditary type. Pathological alterations are localised in peripheral pulmonary arteries and the mechanism responsible for their initiation is not entirely known. Pulmonary hypertension remains asymptomatic or oligosymptomatic for a long period of time. Its diagnosis and the determination of its aetiology require detailed diagnostically procedures, including: physical examination, transthoracic echocardiography, electrocardiography, chest X-ray, and finally, catheterisation of the “right heart” as a test necessary for the final confirmation of the diagnosis. Expanded diagnostic tests help to establish the causes of PAH. To determine the advancement stage and progress of the disease not only the clinical examination is vital, but also the results of a 6-minute walk test, echocardiography, haemodynamics and biochemical markers. Based on the advancement stage of the disease and the reactivity of pulmonary arteries, an appropriate therapeutic approach involving general guidelines, pharmacotherapy and possible interventional treatment is implemented. Currently applied pharmacotherapy does not allow the patient’s complete recuperation. However, due to the early determination of the diagnosis and faster implementation of specific therapy, the quality of life may be markedly improved. This may also decelerate the occurrence of complications, progress of the disease as well as decreased mortality. If pharmacological approach does not yield satisfactory results, palliative invasive treatment in the form of balloon atrioseptostomy or, ultimately, lung or lung and heart transplant should be considered.
PL
Nadciśnienie płucne (PH) jest chorobą rzadką i nieuleczalną. U dzieci najczęściej występuje jako tętnicze nadciśnienie płucne (PAH), spowodowane wrodzonymi wadami serca bądź występujące jako postać idiopatyczna/ dziedziczona. Zmiany patologiczne dotyczą obwodowych tętnic płucnych, a mechanizm odpowiedzialny za ich inicjację nie jest dokładnie znany. Nadciśnienie płucne długo przebiega bezobjawowo lub skąpoobjawowo. Jego rozpoznanie oraz ustalenie etiologii wymaga przeprowadzenia szczegółowej diagnostyki, na którą składają się: badanie przedmiotowe, echokardiografia przezklatkowa, elektrokardiografia, zdjęcie rentgenowskie klatki piersiowej, a w końcu cewnikowanie prawego serca jako badanie niezbędne do ostatecznego potwierdzenia rozpoznania. Celem ustalenia przyczyny PAH wykonuje się poszerzone badania diagnostyczne. W ocenie stopnia zaawansowania i postępu choroby ważne jest nie tylko badanie kliniczne, ale także wynik 6-minutowego testu marszowego, badania echokardiograficznego, hemodynamicznego oraz markery biochemiczne. Na podstawie oceny stopnia ciężkości choroby i reaktywności naczyń płucnych wdraża się odpowiednie postępowanie terapeutyczne, które obejmuje zalecenia ogólne, farmakoterapię i ewentualnie leczenie interwencyjne. Obecnie stosowana farmakoterapia nie pozwala wprawdzie na wyleczenie pacjenta, ale dzięki wczesnemu ustaleniu rozpoznania i szybszemu wdrożeniu swoistej terapii można znacznie poprawić jakość życia, spowolnić wystąpienie powikłań i postęp choroby, a także zmniejszyć śmiertelność. U pacjentów, u których leczenie farmakologiczne nie daje zadowalających wyników, należy rozważyć paliatywne leczenie zabiegowe pod postacią atrioseptostomii balonowej, a w ostateczności – zakwalifikować do przeszczepu płuc lub płuc i serca.
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