Physical constitution and smoking habits of patients with idiopathic spontaneous pneumothorax.

Nakamura, Hiroshi; Izuchi, R; Hagiwara, Takeshi; Izumi, Seiya; Konishiike, Jouichi; Omura, Ichiro; S, Sakai; Shigematsu, Yoshiyuki; Akutagawa, Mitsuo; Takeno, Yoshihito

doi:10.2169/internalmedicine1962.22.2

Cited by 22 publications

(19 citation statements)

References 5 publications

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“…With smoking, the relative risk of developing pneumothorax is reported to increase 9-and 22-fold among men and women, respectively, and there is a dose-response relationship between the number of cigarettes smoked per day and the occurrence of pneumothorex [8] . The risk is higher among heavy smokers [9] , similar to the findings in this study. Smoking cigarettes can increase the possibility of developing blebs and bullae, as well as causing bronchiolitis [3,10] .…”

Section: Discussionsupporting

confidence: 91%

“…Few studies have been conducted in various countries in the past, and there is no consensus of opinion regarding causative factors of SP [2,3] . Smoking is reported to be a significant risk factor for developing SP [8,9] . With smoking, the relative risk of developing pneumothorax is reported to increase 9-and 22-fold among men and women, respectively, and there is a dose-response relationship between the number of cigarettes smoked per day and the occurrence of pneumothorex [8] .…”

Section: Discussionmentioning

confidence: 99%

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Risk Factors of Spontaneous Pneumothorax in Kuwait

Ayed

Bazerbashi²,

Ben-Nakhi³

et al. 2006

Med Princ Pract

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Objectives: To determine the risk factors of spontaneous pneumothorax (SP) in Kuwait. Subjects and Methods: From January 2002 through December 2003, 254 consecutive cases with a diagnosis of SP were reviewed. Analyses of pneumothorax rates by age, sex, smoking, body mass index (BMI) and climatic conditions were evaluated. Results: Of the 254 patients, 242 (95%) were male and 12 (5%) were female; a larger proportion of 180 (88%) were Kuwaitis and 74 (12%) were expatriates. Two hundred and eight (82%) episodes were regarded as primary SP and 46 (18%) as secondary SP. The mean age was 24.5 ± 5.8 years for primary SP and 45.7 ± 14.5 years for secondary SP. One hundred and ninety-six (77%) individuals were current smokers. BMI in primary and secondary SP was 19.3 and 22.4, respectively (p < 0.001). There was no relationship between SP and climatic conditions (a rise or fall in temperature, humidity or atmospheric pressure). However, a slight increase in SP occurred in July, probably the hottest month in Kuwait. Conclusions: The data indicate that the most important risk factors of SP in Kuwait are smoking, low BMI and the male gender.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Risk Factors of Spontaneous Pneumothorax in Kuwait

Ayed

Bazerbashi²,

Ben-Nakhi³

et al. 2006

Med Princ Pract

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“…An increased risk for spontaneous pneumothorax has been demonstrated by Bense [38] and Nakamura [39], but in the series of Bense [38], this occurred in a group of older pa tients (58% > 35 years; 82/135) and none stated to be free of COPD. However, 3/20 patients of Lesur [27] were defi nitely nonsmokers.…”

Section: Limitations O F the Studymentioning

confidence: 89%

Value of Computer Tomography in the Detection of Bullae and Blebs in Patients with Primary Spontaneous Pneumothorax

Mitlehner¹,

Friedrich

Dissmann³

1992

Respiration

137

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In this prospective study, the value of computed tomography (CT) in detecting bullae and bleb formation of the lung in 35 patients with primary spontaneous pneumothorax (PSP) has been determined. The ability of CT in the detection of bullae and bleb formation and fibrotic changes is compared with the chest film in PSP. CT showed pathological lung changes in 31/35 patients. In most cases, few (n < 5) and small blebs (i.e., < 2 cm in diameter) were found. In 16/35 cases, blebs ( < 2 cm) and bullae ( > 2 cm in diameter) occurred in the extra-apical region. Contralateral pathological changes were found in 23/35. Bullae ( > 2 cm) could be detected only in 6/35. In the chest film, bullae and blebs could be detected in 11/35 cases on the ipsilateral (in 2/35 cases not confirmed by CT), in 3/35 on the bilateral and in 4/35 only on the contralateral side. Thus, CT was proved to be of high value in the assessment of bullae and bleb formation in PSP compard with chest film. Negative pressure drainage was instituted as primary therapy. In a follow-up of 9.6 ( ± 5.7 SD) months, only early recurrences were noticed (n = 35). The rate of recurrences was 6/35 patients. The longer follow-up period (mean 31.7 ± 6.1 months) could be performed for 32 patients; 3 were lost. Additionally, 2 recurrences occurred. No correlation between recurrences and anatomical status (number, size and distribution of blebs/bullae) as assessed by CT was found. Differential treatment protocols on the basis of the initial findings do not appear to be warranted.

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“…In early teens, the rapid increase in the vertical dimension of the thorax may affect intrathoracic pressure at the lung apex and drive subpleural cyst formation (Fujino et al 1999). Smoking is also reported to be a significant factor for developing PSP (Nakamura et al 1983;Bense et al 1987a;Cheng et al 2009). …”

Section: Discussionmentioning

confidence: 99%