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The cloud over Sarawak

Nature, 1997 Sep 25;389(6649):315.
PMID: 9311758
Matched MeSH terms: Smog
Fulltext The impact of the haze on children with chronic asthma

Chan PWK, DeBruyne JA, Chan TL, Goh AYT

JUMMEC, 1997;2(2):99-102.

To determine the impact of the haze on asthma symptomatology in children with chronic asthma on inhaled prophylaxis. The study was prospective and collected information on asthma symptoms from children attending the asthma clinic. A comparison of peak expiratory flow rate (PEFR) measurements before and during the haze was performed for children above 7 years. A total of 97 children were included into the study. Forty (41%) children complained of an increase in nocturnal cough (55%) followed by nasal symptoms (40%), daytime cough (40%), nocturnal wheeze (25%) and daytime wheeze (18%). About half of the children who had increased symptomatology during the haze had to limit outdoor activities. In the 43 children in whom PEFR studies were available, 29 (67%) of them had a fall in the PEFR. However, children with no increase in asthma symptomatology showed a similar fall in PEFR measurement when compared to children with increased asthma symptomatology. The haze appeared to be detrimental to the well being of some children with chronic asthma despite being on inhaled prophylaxis.
Study site: Asthma clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia

Matched MeSH terms: Smog
Fulltext Exercise and pre-habilitation with high whey-protein-based meal replacement therapy promote weight loss and preserve muscle mass before bariatric surgery

Ho C, Samwil SNM, Kahairudin Z, Jamhuri N, Abd Aziz A

Asian J Surg, 2023 Sep;46(9):3716-3721.
PMID: 36931924 DOI: 10.1016/j.asjsur.2023.03.026

BACKGROUND: Bariatric surgery is considered as an effective therapy for those with morbid obesity. Preoperative weight loss with a very low-calorie diet is commonly used to ease the bariatric surgery. Pre-habilitation increases functional and physiological capacity. The study demonstrated the changes of body composition and functional status following short term pre-habilitation before bariatric surgery.
METHOD: This prospective study targeted those admitted for bariatric surgery. Participants underwent the biweekly pre-habilitation program included an individualized high whey-based protein very low-calorie (VLCHP) enteral regime (600-900 kcal/day) and moderate intensive exercise before bariatric surgery. Body composition and waist circumference were assessed after fortnight. Participants were segregated into morbid obese (MOG) (BMI <49 kg/m2) and super morbid obese group (SMOG) (BMI ≥50 kg/m2) for analysis.
RESULT: Majority of participants were female (71%) with median age 36.0 years old (MOG) and 34.3 years old (SMOG) respectively. SMOG achieved significant greater loss in weight (-7.4 kg vs -4.0 kg), fat percentage (-4.4% vs -1.7%) and fat mass (-9.9 kg vs -3.8 kg); but MOG had a significant increment in muscle mass (3.2 kg vs 2.8 kg) as compared to SOG (p

Matched MeSH terms: Smog
Impact of long-term exposure wildfire smog on respiratory health outcomes

Ontawong A, Saokaew S, Jamroendararasame B, Duangjai A

Expert Rev Respir Med, 2020 05;14(5):527-531.
PMID: 32156169 DOI: 10.1080/17476348.2020.1740089

Background: Air pollution is a global problem and also linked to respiratory diseases. Wildfire smog is a major cause of air pollution in the upper northern area of Thailand. Thus, in the current study, we examined whether long-term exposure to wildfire smog induces lung function changes in a population from the upper northern area of Thailand.Methods: The lung function of 115 participants with long-term exposure smog was determined using peak flow meter.Results: Long-term smoke exposure participants decreased FEV1 (forced expiratory volume in 1 second)/FVC (forced vital capacity) ratio (56.49 ± 23.88 in males and 56.29 ± 28.23 in females) compared with general Thai population. Moreover, the reduction of FVC, FEV1, and peak expiratory flow rate (PEFR) values also showed in both male and female subjects. These results suggest that long-term smoke exposure induces obstructive lung abnormality. Moreover, itchy/watery nose, cough, phlegm, and chest pain also reported in these subjects.Conclusion: Wildfire smog could be induced respiratory pathway inflammation and easily collapsible respiratory airways.

Matched MeSH terms: Smog