Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Volumetric capnography as a noninvasive diagnostic procedure in acute pulmonary thromboembolism

Capnografia volumétrica como auxílio diagnóstico não-invasivo no tromboembolismo pulmonar agudo

Marcos Mello Moreira, Renato Giuseppe Giovanni Terzi, Mônica Corso Pereira, Tiago de Araújo Guerra Grangeia4, Ilma Aparecida Paschoal

J Bras Pneumol.2008;34(5):328-332

Abstract PDF PT PDF EN Portuguese Text

Pulmonary thromboembolism is a common condition. Its diagnosis usually requires pulmonary scintigraphy, computed angiotomography, pulmonary arteriography and, in order to rule out other diagnoses, the measurement of D-dimer levels. Due to the fact that these diagnostic methods are not available in most Brazilian hospitals, the validation of other diagnostic techniques is of fundamental importance. We describe a case of a woman with chronic pulmonary hypertension who experienced a pulmonary thromboembolism event. Pulmonary scintigraphy, computed angiotomography and pulmonary arteriography were used in the diagnosis. The D-dimer test result was positive. Volumetric capnography was performed at admission and after treatment. The values obtained were compared with the imaging test results.

 


Keywords: Thromboembolism; Hypertension, pulmonary; Capnography; Schistosomiasis.

 


Oxygen desaturation in healthy subjects undergoing the incremental shuttle walk test

Dessaturação em indivíduos saudáveis submetidos ao incremental shuttle walk test

Daniel Machado Seixas, Daniela Miti Tsukumo Seixas, Monica Corso Pereira, Marcos Mello Moreira, Ilma Aparecida Paschoal

J Bras Pneumol.2013;39(4):-

Abstract PDF PT PDF EN Portuguese Text

Objective: To determine the probability of oxygen desaturation in healthy individuals undergoing the incremental shuttle walk test (ISWT). Methods: We enrolled 83 healthy subjects: 55 males (including 1 smoker) and 28 females. We determined pre-ISWT FEV1, FEV6, HR and SpO2, as well as post-ISWT HR and SpO2. Results: Mean values overall were as follows: age, 35.05 ± 12.53 years; body mass index, 24.30 ± 3.47 kg/m2; resting HR, 75.12 ± 12.48 bpm; resting SpO2, 97.96 ± 1.02%; FEV1, 3.75 ± 0.81 L; FEV6, 4.45 ± 0.87 L; FEV1/FEV6 ratio, 0.83 ± 0.08 (no restriction or obstruction); incremental shuttle walk distance, 958.30 ± 146.32 m; post-ISWT HR, 162.41 ± 18.24 bpm; and post-ISWT SpO2, 96.27 ± 2.21%. In 11 subjects, post-ISWT SpO2 was higher than was pre-ISWT SpO2. In 17 subjects, there was a 4% decrease in SpO2 after the ISWT. There were no statistically significant differences between the groups with and without post-ISWT oxygen desaturation in terms of age, gender, FEV1, FEV6, FEV1/FEV6, pre-ISWT SpO2, incremental shuttle walk distance, HR, or percentage of maximal HR. In the individuals with post-ISWT oxygen desaturation, the body mass index was higher (p = 0.01) and post-ISWT SpO2 was lower (p = 0.0001). Conclusions: Healthy individuals can present oxygen desaturation after the ISWT. Using the ISWT to predict subtle respiratory abnormalities can be misleading. In healthy subjects, oxygen desaturation is common after the ISWT, as it is during any intense physical activity.

 


Keywords: Heart function tests; Respiratory function tests; Body mass index; Oximetry

 


Near-fatal pulmonary embolism: capnographic perspective

Embolia pulmonar quase fatal: perspectiva capnográfica

Marcos Mello Moreira1,2,a, Luiz Claudio Martins3,b, Konradin Metze4,c, Marcus Vinicius Pereira2,d, Ilma Aparecida Paschoal1,e

J Bras Pneumol.2018;44(6):525-528

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