Acute WTS appears to induce impairment in lung function and exercise capacity. Larger studies are warranted to further characterize the nature and extent of such impairment.

Habitual waterpipe tobacco smoking in young seemingly healthy individuals is associated with a greater burden of respiratory symptoms and impaired exercise capacity.

Background: Failure to quit smoking in cancer patients is associated with the development of a second primary tumor and a suboptimal response to chemotherapy. However, data characterizing cancer patients' ability to quit is scarce, particularly in developing countries. Such information is valuable in highlighting the potential of cessation interventions in countries where smoking rates are high and antismoking policies are not yet fully implemented. Objectives: To measure the abstinence rates and identify reasons for the failure to quit smoking in patients visiting a smoking cessation clinic in a comprehensive cancer center in Jordan. Methods: Through retrospective medical chart review and prospective follow-up by phone, we studied long-term abstinence rates and reasons for the failure to quit smoking in 156 cancer patients referred to the smoking cessation clinic to receive counseling and pharmacological treatment. Patient demographics, clinical and smoking characteristics and long-term abstinence at 12 months were recorded, as were reasons for the failure to quit smoking. Results: The 12-month abstinence rate was 21.2%. The main reasons for failing to quit smoking included personal or professional stressful situations, not being able to handle withdrawal and the belief that quitting had no value. Conclusion: Abstinence rates in Jordanian cancer patients fall at the lower end of the range that has been reported in the literature for cancer patients. Efforts to improve these rates should focus on assisting patients in handling stress, and in adjusting medications to improve withdrawal symptoms.

Little is known with regard to perceptions and information needs of oncology practitioners in the Middle East as they pertain to smoking cessation (SC) support for cancer patients. We sought to assess these in a regional cancer center. A survey was distributed to oncology practitioners (physicians, nurses, pharmacists, and physio- and respiratory therapists) at King Hussein Cancer Center (Amman, Jordan) for self-completion. The survey included SC-related measures of perceptions, knowledge, and practices. Descriptive statistics and cross tabulations were performed to identify misperceptions and knowledge gaps that could be corrected through continuing education. Findings revealed, among 254 practitioners surveyed, low referral rates to the SC clinic. Negative perceptions about cancer patients who smoke existed (e.g., patients needing smoking to control anxiety; patients' willpower sufficient for quitting; patients not wanting to quit and not needing more information). Substantial knowledge gaps were prevalent with regard to the detrimental outcomes associated with continued tobacco use after a cancer diagnosis and with regard to approved SC medication choices. Our results are useful in identifying topics that need to be highlighted during training and educational efforts in the region and also reinforce the need to avail such efforts in order to improve SC-related knowledge and perceptions.

HFOV improves gas exchange and is useful in managing critically ill children with cancer and post-HSCT patients who develop ARDS.