Evolution of the ventilatory function of professional divers

Pougnet, Richard; Henckes, Anne; Mialon, P.; Lucas, Deborah M.; Pougnet, Laurence; Garlantézec, R.; Loddé, B; Dewitte, J.-D.

doi:10.1016/j.admp.2013.07.080

Cited by 4 publications

(14 citation statements)

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“…In this study, there was no change in FVC over time (non-significant 8.81 mL per year reduction). Some studies supported our results that there was no change in FVC over time [12,20]. However, a decrease in FVC among divers has been reported previously [8-10, 13, 17], with only two studies reporting FVC increase [14,21].…”

Section: Discussionsupporting

confidence: 89%

“…In Thailand, Navy divers and HIAs are required to have pre-placement and annual periodic examinations, which include spirometry to detect any abnormality in lung function, in order to ensure that they are fit to work. Currently, there is only one study on lung function change in HIAs [6] and a few studies involving commercial divers [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], all with inconclusive patterns of lung function change in these populations. This study aims to investigate longitudinal change on lung function in HIAs in Thailand from the outset of their careers until present day, and with relation to hyperbaric exposure.…”

Section: Introductionmentioning

confidence: 99%

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Lung function change in hyperbaric chamber inside attendants

Poolpol

Sithisarankul

Rattananupong

2019

International Maritime Health

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Background: Hyperbaric oxygen therapy is one of new trends of additional treatment, especially for non-diving-related diseases in Thailand. Hyperbaric inside attendants have to work under hyperbaric environment to provide medical care for patients in the hyperbaric chamber. This study aims to investigate longitudinal change in lung function in hyperbaric inside attendants (HIAs) and the relationship with hyperbaric exposure. Materials and methods: This is a retrospective longitudinal study exploring the adverse long-term effects to the lungs in HIAs. All inside attendants (HIAs) who worked in the public hospitals or medical centres with multiplace hyperbaric chamber in Thailand were included. To be considered for inclusion in the study, inside attendants were required to have at least two follow-up lung function tests and minimum 1-year interval at baseline from annually periodic examination. Lung function of HIAs were compared against reference values of the Thai population. Results: There were 51 subjects with 9.26-year mean period of follow-up. The HIAs showed a significantly decrease in measured lung function in average forced expiratory volume in 1 second (FEV 1), forced expiratory flow at 25-75% of functional vital capacity (FEF 25-75%) and FEV 1 /FVC ratio over time. The annual reductions in FEV 1 , FEF 25-75% and FEV 1 /FVC ratio were 22.52 mL per year, 44.92 mL/s per year and 0.48% per year, respectively. The study showed significant differences in annual changes in FVC, FEF 25-75% and FEV 1 /FVC ratio between HIAs and the lung function predicted values for the Thais. However, the results revealed no differences of annual change in FEV 1 from predicted values. The average working depths, average session duration and total working hours as HIAs were related with the changes of lung function. Conclusions: Working in a hyperbaric environment does affect the lung function of HIAs. In addition to fitness to work implementation, periodic lung function evaluation should be encouraged to monitor further possible harm to the attendants.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Lung function change in hyperbaric chamber inside attendants

Poolpol

Sithisarankul

Rattananupong

2019

International Maritime Health

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“…Similarly, the decrease in peripheral bronchial flow rates had already been described in other studies. The significant decrease in FEF25 at 5 years confirms the results of many studies [6,9,12,13,20,21]. No significant relation between the decrease in FEF25 and smoking habits was found.…”

Section: Discussionsupporting

confidence: 88%

“…In France, previous studies have shown a decrease in diffusion lung capacity for carbon monoxide (DLCO) after 5 years of diving and peripheral bronchial discharges (DEM25 and DEM50) after 10 years, taking into account variations due to age and weight [12,13]. These were studies of professional civilian divers, often scientists.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the respiratory function of professional divers over 15 years

Pougnet

Henckes

et al. 2019

International Maritime Health

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Background: The study was aimed at assessing changes in respiratory function after 15 years of professional diving, among scientific divers. Materials and methods: A retrospective study was performed on divers who underwent an initial visit and a visit 15 years later at the same medical centre, among divers who had a scientific activity (monitoring the coastline, fauna and flora). Pulmonary function tests were performed in the same laboratory with the same operating standards and using a Jaeger MasterBody plethysmograph. Each subject acted as his or her own control. The data were analysed by Student's t-test and Spearman's correlation coefficient. Results: Twenty-six divers were included. Changes over 15 years included: a decrease in the forced expired volume in 1 second/functional vital capacity (FEV1/FVC) ratio

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“…Including the three search terms "lung" or "pulmonary", plus "physiology" or "function" plus "diving" revealed 799 hits. 17 publications provided data on 12 longitudinal cohort studies [54,56,[58][59][60][61][62][63][64][65][66][67][68][69][70] and two studies that reported pulmonary function long-term follow-up testing after single deep dives [55,57]. Studies were heterogeneous in regards to their methodology, study populations, observation period and outcomes.…”

Section: Long-term Effects Of Diving On Lung Functionmentioning

confidence: 99%

Short- and long-term effects of diving on pulmonary function

Tetzlaff

Thomas

2017

Eur Respir Rev

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@ERSpublicationsThe effects of diving on pulmonary function largely depend on factors associated with the individual diving response http://ow.ly/aIFS3095WNnCite this article as: Tetzlaff K, Thomas PS. Short-and long-term effects of diving on pulmonary function. ABSTRACT The diving environment provides a challenge to the lung, including exposure to high ambient pressure, altered gas characteristics and cardiovascular effects on the pulmonary circulation. Several factors associated with diving affect pulmonary function acutely and can potentially cause prolonged effects that may accumulate gradually with repeated diving exposure. Evidence from experimental deep dives and longitudinal studies suggests long-term adverse effects of diving on the lungs in commercial deep divers, such as the development of small airways disease and accelerated loss of lung function. In addition, there is an accumulating body of evidence that diving with self-contained underwater breathing apparatus (scuba) may not be associated with deleterious effects on pulmonary function. Although changes in pulmonary function after single scuba dives have been found to be associated with immersion, ambient cold temperatures and decompression stress, changes in lung function were small and suggest a low likelihood of clinical significance. Recent evidence points to no accelerated loss of lung function in military or recreational scuba divers over time. Thus, the impact of diving on pulmonary function largely depends on factors associated with the individual diving exposure. However, in susceptible subjects clinically relevant worsening of lung function may occur even after single shallow-water scuba dives.

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Evolution of the ventilatory function of professional divers

Cited by 4 publications

References 0 publications

Lung function change in hyperbaric chamber inside attendants

Lung function change in hyperbaric chamber inside attendants

Evolution of the respiratory function of professional divers over 15 years

Short- and long-term effects of diving on pulmonary function

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