Cited by 73Obstructive Sleep Apnea ResearchPulmonary Hypertension Research and TreatmentsTakotsubo Cardiomyopathy and Associated Phenomena

Cardiopulmonary pathology in patients with sleep apnea/obesity hypoventilation syndrome

Ahmed, Qasim, Chung-Park, Moonja, Tomashefski, Joseph F·1997·Human Pathology

Abstract

We reviewed clinical data, autopsy reports, and microscopic slides on 10 patients with sleep apnea/obesity hypoventilation syndrome (SA/OHS) to define the cardiopulmonary pathological features and establish clinicopathologic correlations. Ten obese (>136 kg) patients without SA/OHS were studied as controls. Patients with SA/OHS exhibited biventricular cardiac failure and pulmonary hypertension with a higher prevalence of moderate/severe pulmonary hemosiderosis (8 v 0 patients), alveolar hemorrhage (7 v 4 patients), capillary proliferation (4 v 0 patients), iron encrustation of elastica (1 v 0 patients) and medial hypertrophy of muscular pulmonary arteries (11.9 +/- 2.4 v 9.7 +/- 1.6%) (P < .05). In two patients capillary proliferation resembled capillary hemangiomatosis. Mean right ventricular thickness was higher in the SA/OHS group (0.71 +/- 0.17 v 0.42 +/- 0.1 cm) (P < .01). Four patients with SA/OHS and three controls had moderate/severe myocardial fibrosis. Biventricular cardiac failure caused death in seven patients with SA/OHS. Hypoxia is probably the most important cause of pulmonary hypertension, arterial muscularization, and right ventricular hypertrophy in SA/ OHS. Left ventricular failure in some SA/OHS patients may be the result of hypertensive cardiac disease. In others, the etiology of left ventricular failure was not determined morphologically, suggesting functional abnormalities related to obesity and/or apneic episodes.

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Crossref · 10.1016/s0046-8177(97)90122-2

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  • Autopsy series have shown cardiac hypertrophy plus a variable extent of coronary artery disease in obese and nonobese subjects.

    “However, autopsy series present the opportunity to study heart tissue from obese and nonobese subjects, and in general, these studies have shown cardiac hypertrophy plus a variable extent of coronary artery disease (9, 64, 91, 147, 185–188, 300).”

    From Cardiac remodeling in obesity (2008) · cites this paper as [9]

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Authors
Ahmed, Q., Chung-Park, M., & Tomashefski, J. F.
Affiliations
MetroHealth (US)
Corresponding author
Tomashefski, Joseph F
Venue
Human Pathology
Publisher
Elsevier BV
Published
1997-03
Volume
28
Issue
3
Pages
264-269
ISSN
0046-8177 (ISSN-L)
OpenAlex
W2046942152
Cited by
73
References
31
Citations by year
2024: 3 · 2023: 3 · 2022: 1 · 2021: 1 · 2020: 2 · 2017: 1 · 2016: 2 · 2015: 4 · 2014: 2 · 2013: 2 · 2012: 4
FWCI
1.63
Type
journal article
Language
en
Open access
closed
Locations
  • Human Pathology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Obstructive Sleep Apnea Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Pulmonary Hypertension Research and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Takotsubo Cardiomyopathy and Associated Phenomena
Keywords
pulmonary hypertension, pulmonary hemosiderosis, alveolar hemorrhage, capillary proliferation, right ventricular hypertrophy, myocardial fibrosis, hypoxia, obesity, autopsy findings
MeSH terms
Adult, Aged, Female, Hemosiderosis, Humans, Lung, Male, Middle Aged, Myocardium, Obesity, Retrospective Studies, Sleep Apnea Syndromes

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