Ali ÖZDİL, Tevfik İlker AKÇAM, Ayşe Gül ERGÖNÜL, Kutsal TURHAN, Ufuk ÇAĞIRICI, Alpaslan ÇAKAN, Önder KAVURMACI

Göğüs tüpü bulunan hastalarda hava kaçağının kantitatif ölçümü

Amaç: Bu çalışmada tepe hava kaçak hızını ve tepe hava kaçak debisini saptayan yeni bir yöntem değerlendirildi, hava kaçağı miktarı ve uzamış hava kaçağı gelişimi arasındaki ilişki araştırıldı ve akciğer rezeksiyonu sonrası uzamış hava kaçağı gelişimi riski taşıyan hastalar belirlendi. Çalışma planı: Bu prospektif çalışmada, hava kaçağı miktarı standart bir su altı drenaj sisteminin üstüne bağlı bir anemometre ve android işletim sistemine sahip bir cep telefonu yardımı ile ölçüldü. Spontan pnömotoraks için tüp torakostomi uygulanan hastalar (18 erkek, 1 kadın; ort. yaş 31.6±10.9 yıl; dağılım, 18-70 yıl) grup 1’e, benign veya malign akciğer hastalıkları nedeniyle akciğer rezeksiyonu uygulanan hastalar (37 erkek; 16 kadın; ort. yaş 56.9±15.6 yıl; dağılım, 18-80 yıl) ise grup 2’ye alındı. Verilerin istatistiksel analizi için alıcı işletim karakteristiği analizi uygulandı. Bulgular: Uzamış hava kaçağı grup 1’de beş hastada (%26.3), grup 2’de altı hastada (%11.3) gözlemlendi. Grup 1’de, ameliyat sonrası sıfırıncı gündeki ilk ölçüm uzamış hava kaçağı gelişimini %100 duyarlılık ve %92.9 özgüllük ile saptayabildi. Benzer şekilde, grup 2’de, ameliyat sonrası sıfırıncı gündeki ölçümler uzamış hava kaçağı gelişimini %100 duyarlılık ve %87.2 özgüllük ile saptayabildi. Sonuç: Benzer ürünler ile karşılaştırıldığında, yeni geliştirilen bu ölçüm cihazı düşük maliyeti ve kullanım kolaylığı ile kliniklerde yaygın şekilde kullanılabilir. Ölçülen tepe hava kaçak debisi değerleri uzamış hava kaçağı gelişebilecek hastaları öngörebilir. Cihaz için patent çalışmaları devam etmektedir.

Quantitative measurement of air leak in patients with chest drains

Background: This study aims to evaluate a new method thatdetects peak air leak speed and peak air leak flow, investigatethe correlation between the amount of air leak and developmentof prolonged air leak, and identify patients who are at risk ofdeveloping prolonged air leak after lung resection.Methods: In this prospective trial, the amount of air leak wasmeasured with the assistance of an anemometer connected tothe top of a standard underwater drainage system, and a mobilephone with android operating system. Patients who underwenttube thoracostomy for spontaneous pneumothorax were assignedto group 1 (18 males, 1 female; mean age 31.6±10.9 years;range, 18 to 70 years), whereas patients who underwent lungresection for benign or malignant lung diseases were assignedto group 2 (37 males; 16 females; mean age 56.9±15.6 years;range, 18 to 80 years). The receiver operating characteristicsanalysis was performed for the statistical analysis of the data.Results: Prolonged air leak was observed in five patients(26.3%) in group 1 and in six patients (11.3%) in group 2. Ingroup 1, first measurement on postoperative day zero coulddetect prolonged air leak development with 100% sensitivity and92.9% specificity. Similarly, in group 2, measurements on dayzero could detect prolonged air leak development with 100%sensitivity and 87.2% specificity.Conclusion: Compared to similar products, this newly developedmeasuring device may be widely used in clinics with its low costand ease of use. Measured peak air leak flow values can predictpatients who may develop prolonged air leak. Patent work for thedevice is ongoing.

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