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01 Apr 2016
Posaconazole oral suspension may be effective in managing fungal infections among lung transplant recipients, as presented in a single-centre, retrospective study.
Saras Ramiya, 19 Nov 2018
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Tristan Manalac, 11 Sep 2018
The immediate reduction of cigarette nicotine content results in greater improvements in levels of smoke exposure biomarkers than gradual reduction, though withdrawal symptoms are stronger, according to a recent study.
Stephen Padilla, 10 Jan 2019
Happy Quit, a mobile-phone-based text messaging intervention, has led smokers in a China study to stop smoking with either high- (HFM) or low-frequency messaging (LFM). This intervention may be paired with other smoking cessation services for treatment-seeking smokers.

Age, lung V20 predict radiation pneumonitis

Jackey Suen
16 Oct 2018

Age ≥60 years and ≥20 percent of normal lung volume receiving a radiation dose of ≥20 Gy (V20) are significant predictors of radiation pneumonitis (RP) in patients treated with intensity-modulated radiotherapy (IMRT) for lung cancer, a Chinese study has shown.

“The study aimed to correlate clinical and dosimetric factors with the development of RP in patients with lung cancer treated with IMRT,” noted researchers from the PLA General Hospital, Beijing, China, at the International Association for the Study of Lung Cancer (IASLC) 19th World Conference on Lung Cancer (WCLC 2018).

The study included 149 patients with lung cancer (squamous cell carcinoma, 30.2 percent; adenocarcinoma, 18.8 percent; small cell lung cancer, 38.2 percent; others, 12.8 percent). Most patients had stage III (65.1 percent) or IV disease (28.2 percent). Potential predictive factors for RP investigated in the study included age, gender, histology, tumour stage, pulmonary function, Karnofsky performance score, radiation dose, surgery history, and chemotherapy use. [Du L, et al, WCLC 2018, abstract P1.17-19]

After a median follow-up of 9 months, 62.7 percent, 38.3 percent, and 6.7 percent of the patients developed grade ≤1, grade ≥2, and grade ≥3 RP, respectively.

In multivariate analysis, age ≥60 years (age ≥60 years vs <60 years, adjusted hazard ratio [aHR], 2.517; 95 percent confidence interval [CI], 1.167 to 5.430; p=0.019) and V20 ≥20 percent (V20 ≥20 to <25 percent vs <20 percent, aHR, 2.971; 95 percent CI, 1.085 to 8.133; p=0.034; V20 ≥25 percent vs <20 percent, aHR, 5.810; 95 percent CI, 1.391 to 24.27; p=0.016) were significant predictors of grade ≥2 RP. Patients with a history of surgery were also more prone to grade ≥2 RP, but the predictive value reached only borderline significance (vs no surgery, aHR, 3.048; 95 percent CI, 0.959 to 9.686; p=0.059). Other potential factors failed to demonstrate statistical significance.

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Most Read Articles
01 Apr 2016
Posaconazole oral suspension may be effective in managing fungal infections among lung transplant recipients, as presented in a single-centre, retrospective study.
Saras Ramiya, 19 Nov 2018
Sunway Medical Centre is collaborating with Royal Papworth Hospital to facilitate knowledge exchange among cardiology and respiratory experts.
Tristan Manalac, 11 Sep 2018
The immediate reduction of cigarette nicotine content results in greater improvements in levels of smoke exposure biomarkers than gradual reduction, though withdrawal symptoms are stronger, according to a recent study.
Stephen Padilla, 10 Jan 2019
Happy Quit, a mobile-phone-based text messaging intervention, has led smokers in a China study to stop smoking with either high- (HFM) or low-frequency messaging (LFM). This intervention may be paired with other smoking cessation services for treatment-seeking smokers.