J Korean Assoc Oral Maxillofac Surg.  2020 Feb;46(1):36-40. 10.5125/jkaoms.2020.46.1.36.

Pulmonary functions of patients with isolated mandibular fractures: a preliminary report

• Famurewa B
• Oginni FO
• Aregbesola SB
• Erhabor GE

• KMID: 2471110
• DOI: http://doi.org/10.5125/jkaoms.2020.46.1.36

Abstract

OBJECTIVES
The aim of this study was to evaluate pulmonary function in patients with mandibular fractures and to determine the pattern of pulmonary functions in these patients.
MATERIALS AND METHODS
This was a cross-sectional study of pulmonary functions in Nigerian non-smoking patients with isolated mandibular fractures managed at our health institution from December 2015 to June 2017. Forced vital capacity (FVC), forced expiratory volume in one second (FEV₁), peak expiratory flow rate (PEFR), and ratio of FEV₁ to FVC (FEV₁/FVC) were measured for all participants using a portable spirometer just before treatment. The pulmonary indices were compared with the predicted reference values for Nigerians to determine the respiratory pattern.
RESULTS
Forty participants consisting of six females (15.0%) and thirty-four males (85.0%) with a female to male ratio of 1:5.7 were included in this study. The mean patient age was 34.5±13.1 years (range, 17-63 years). The mean FVC, FEV₁, FEV₁/FVC, and PEFR were 3.8±1.2 L, 3.0±1.0 L, 74.3%±13.8%, and 5.2±2.2 L/s, respectively. Comparison of data with predicted values revealed that 17 subjects (42.5%) had normal pulmonary function pattern while 23 subjects (57.5%) had features suggestive of obstructive and restrictive pulmonary function patterns.
CONCLUSION
Isolated mandibular fractures presented with abnormal pulmonary function pattern.

Keyword

Pulmonary function; Mandibular fractures; Spirometry; Airway obstruction

MeSH Terms

Airway Obstruction
Cross-Sectional Studies
Female
Forced Expiratory Volume
Humans
Male
Mandibular Fractures*
Peak Expiratory Flow Rate
Reference Values
Spirometry
Vital Capacity

Figure

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  Fig. 1 Portable office spirometer used for pulmonary function tests.

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  Fig. 2 A study participant undergoing spirometry testing.

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