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    Aortic arch calcification: a novel parameter for prediction of masked hypertension
    (Lippincott Williams & Wilkins, 2021) Akbay, Ertan; Coner, Ali; Akinci, Sinan; Adar, Adem; Cakan, Fahri; Muderrisoglu, Haldun
    Background Masked hypertension is directly related to increased cardiovascular morbidity and mortality but remains underdiagnosed in clinical practice. The aim of the study was to search the role of aortic arch calcification (AAC) in the diagnosis of masked hypertension. Methods and results Among the patients who underwent ambulatory blood pressure monitoring (ABPM) in our clinic, those with office blood pressure (OBP) <140/90 mmHg were included in the study population. According to OBP, they were divided into two groups as normal (<130/85 mmHg) and high normal (130-139/85-89 mmHg) OBP groups. Subjects were also investigated for the presence of masked hypertension with ABPM and searched in masked hypertension and control groups. Masked hypertension was defined as in the latest 2017 ACC/AHA Hypertension guideline and was diagnosed as the daytime BP >= 135/85 mmHg and nighttime BP >= 120/70 mmHg. AAC was evaluated on direct X-ray telecardiography. Diagnosis of masked hypertension was searched depending on the presence of AAC and OBP measurements as well. A total of 216 volunteers were involved in the study [mean age 45.2 +/- 12.2 years; female gender 120 (55.5%)]. One hundred ten volunteers (50.9%) had masked hypertension according to the ABPM. AAC was significantly more common in the masked hypertension group (44.5% vs. 26.4%) (P = 0.005). AAC had a positive predictive value of 79% in those with high normal OBP in the diagnosis of masked hypertension, and also AAC had a negative predictive value of 74% in those with normal OBP. Conclusion AAC can be used as a reliable diagnostic tool to exclude and predict masked hypertension during office examination.
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    A new and simple parameter for diagnosis pulmonary edema: Expiratory air humidity
    (Mosby-Elsevier, 2022) Adar, Adem; Can, Emine Yilmaz; Elma, Yusuf; Ferah, Meryem Akpolat; Kececi, Mete; Muderrisoglu, Haldun; Akbay, Ertan
    Purpose: Acute pulmonary edema is characterized by increased levels of fluid in the interstitial and alveolar space of the lung and requires emergency treatment. In acute pulmonary edema, the amount of fluid in the intra-alveolar, interstitial space, and pleural space vary considerably and this fluid will evaporate in different amounts compared to the physiological fluid. The aim of this study was to compare the humidity rates of expiratory air measured before and after pulmonary edema induced by alpha-naphthylthiourea (ANTU) in rats. Methods: The study included twenty healthy adult rats divided equally into a healthy control group and a pulmonary edema group. Pulmonary edema was induced by administering ANTU intraperitoneally in the rats in the study group. Humidity, temperature, lung weight, pleural effusion, and histopathological changes in the respiratory system due to pulmonary edema were examined in the ANTU group. Control measurments were taken before administration of ANTU and again 4 h after administration of ANTU when lung damage was considred to be at maximum levels. Results: Mean expiratory air humidity was 71.22 +/- 3.59% before ANTU and 56.28 +/- 3.94% after administration of ANTU. The mean humidity difference of -14.94 +/- 5.96% was considered statistically different (p = 0.01). Conclusion: Humidity rate in expiratory air was significantly lower in rats with acute pulmonary edema compared to healthy rats. This result supports the hypothesis that humidity in expiratory air can be considered an important parameter in patients during clinical are follow-up for pulmonary edema. (C) 2022 Elsevier Inc. All rights reserved.