Abstract
Impairment of mucociliary function occurs after lung transplantation and may predispose patients to repeated pulmonary infections. The purpose of this study is to determine whether and how soon such mucociliary function may recover. Ten dogs underwent left lung autotransplantation. Within 3 weeks five of these dogs underwent study for proximal airway clearance by observation through a bronchoscope of the movement of carbon particles placed at different locations on the tracheobronchial mucosa. The mechanical properties of collected mucus from specific sites were determined by magnetic rheometry. The right lung, which was not operated on, served as a paired control. Similar studies were conducted in the remaining five dogs at 12 weeks after autotransplantation. Lung autotransplantation caused significant depression of proximal airway clearance and a 35% increase in mucous rigidity (p = 0.05) soon after operation. At 12 weeks after operation, there was a partial recovery of proximal airway clearance. Mucous changes were no longer consistent. Histologic and electron microscopic examinations initially revealed focal denudation of ciliated cells and loss of the bronchial glands. At 12 weeks there was a regeneration of cilia and a reappearance of the bronchial glands. We conclude that the mucociliary function, observed to be depressed early after lung autotransplantation, recovers partially during the late postoperative period. Thus the mucociliary functional recovery should be attributed to revascularization rather than to reinnervation, since the latter is unlikely to occur during this period.
| Original language | English |
|---|---|
| Pages (from-to) | 908-912 |
| Number of pages | 5 |
| Journal | Journal of Thoracic and Cardiovascular Surgery |
| Volume | 102 |
| Issue number | 6 |
| State | Published - Dec 1 1991 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Surgery
Cite this
The reversibility of impaired mucociliary function after lung transplantation. / Marelli, D.; Paul, A.; Nguyen, Dao; Shennib, H.; King, M.; Wang, N. S.; Wilson, J. A.; Mulder, D. S.; Chiu, R. C J.
In: Journal of Thoracic and Cardiovascular Surgery, Vol. 102, No. 6, 01.12.1991, p. 908-912.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The reversibility of impaired mucociliary function after lung transplantation
AU - Marelli, D.
AU - Paul, A.
AU - Nguyen, Dao
AU - Shennib, H.
AU - King, M.
AU - Wang, N. S.
AU - Wilson, J. A.
AU - Mulder, D. S.
AU - Chiu, R. C J
PY - 1991/12/1
Y1 - 1991/12/1
N2 - Impairment of mucociliary function occurs after lung transplantation and may predispose patients to repeated pulmonary infections. The purpose of this study is to determine whether and how soon such mucociliary function may recover. Ten dogs underwent left lung autotransplantation. Within 3 weeks five of these dogs underwent study for proximal airway clearance by observation through a bronchoscope of the movement of carbon particles placed at different locations on the tracheobronchial mucosa. The mechanical properties of collected mucus from specific sites were determined by magnetic rheometry. The right lung, which was not operated on, served as a paired control. Similar studies were conducted in the remaining five dogs at 12 weeks after autotransplantation. Lung autotransplantation caused significant depression of proximal airway clearance and a 35% increase in mucous rigidity (p = 0.05) soon after operation. At 12 weeks after operation, there was a partial recovery of proximal airway clearance. Mucous changes were no longer consistent. Histologic and electron microscopic examinations initially revealed focal denudation of ciliated cells and loss of the bronchial glands. At 12 weeks there was a regeneration of cilia and a reappearance of the bronchial glands. We conclude that the mucociliary function, observed to be depressed early after lung autotransplantation, recovers partially during the late postoperative period. Thus the mucociliary functional recovery should be attributed to revascularization rather than to reinnervation, since the latter is unlikely to occur during this period.
AB - Impairment of mucociliary function occurs after lung transplantation and may predispose patients to repeated pulmonary infections. The purpose of this study is to determine whether and how soon such mucociliary function may recover. Ten dogs underwent left lung autotransplantation. Within 3 weeks five of these dogs underwent study for proximal airway clearance by observation through a bronchoscope of the movement of carbon particles placed at different locations on the tracheobronchial mucosa. The mechanical properties of collected mucus from specific sites were determined by magnetic rheometry. The right lung, which was not operated on, served as a paired control. Similar studies were conducted in the remaining five dogs at 12 weeks after autotransplantation. Lung autotransplantation caused significant depression of proximal airway clearance and a 35% increase in mucous rigidity (p = 0.05) soon after operation. At 12 weeks after operation, there was a partial recovery of proximal airway clearance. Mucous changes were no longer consistent. Histologic and electron microscopic examinations initially revealed focal denudation of ciliated cells and loss of the bronchial glands. At 12 weeks there was a regeneration of cilia and a reappearance of the bronchial glands. We conclude that the mucociliary function, observed to be depressed early after lung autotransplantation, recovers partially during the late postoperative period. Thus the mucociliary functional recovery should be attributed to revascularization rather than to reinnervation, since the latter is unlikely to occur during this period.
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UR - http://www.scopus.com/inward/citedby.url?scp=0026328295&partnerID=8YFLogxK
M3 - Article
C2 - 1960996
AN - SCOPUS:0026328295
VL - 102
SP - 908
EP - 912
JO - Journal of Thoracic and Cardiovascular Surgery
JF - Journal of Thoracic and Cardiovascular Surgery
SN - 0022-5223
IS - 6
ER -