Singh Nishtha, Singh Udaiveer, Singh Dimple, Daya Mangal, Singh Virendra
Department of Respiratory Medicine, Asthma Bhawan, Jaipur, Rajasthan, India.
Department of Botany, Mehta College, Jaipur, Rajasthan, India.
Lung India. 2017 Mar-Apr;34(2):127-131. doi: 10.4103/0970-2113.201313.
Environmental pollens are known to cause exacerbation of symptoms of patients with allergic rhinitis (AR) and asthma. During pollen months, number of patients visiting hospital has been shown to increase in some studies. However, in India, such studies are lacking. Therefore, we aimed to study pollen counts and to find its correlation with number of new patients attending Asthma Bhawan for 2 years.
Aerobiological sampling was done using Burkard 24 h spore trap system. The site selected for the entrapment of the air spore was the building of Asthma Bhawan situated at Vidhyadhar Nagar, Jaipur. New patients coming with problems of respiratory allergy such as AR or asthma were recruited in the study. Skin prick tests (SPTs) were carried out after obtaining consent in these patients. Monthly pollen counts of trees, weeds and grasses were correlated with the number of new patients. Pollen calendar was prepared for 2 years.
Average annual pollen count during 2011 and 2012 were 14,460.5. In the analysis, 37 types of species or families were identified. Pollen count showed two seasonal peaks during March-April and from August to October. January and June showed the lowest pollen counts in 2 years. Average monthly count of grass pollens showed significant correlation with number of new patients ( = 0.59). However, monthly pollen count of trees and weeds did not correlate. The correlation of the pollen count of individual pollen with the SPT positivity to that pollen showed significant correlation with only.
It can be concluded that there were two peaks of pollen count in a year during March-April and August-October. Average monthly pollen counts of grass were significantly correlated with the number of hospital visits of new patients.
已知环境花粉会导致过敏性鼻炎（AR）和哮喘患者的症状加重。在花粉季节，一些研究表明就诊医院的患者数量会增加。然而，在印度，此类研究尚缺。因此，我们旨在研究花粉计数，并找出其与两年来哮喘之家新就诊患者数量的相关性。
使用 Burkard 24 小时孢子捕捉系统进行气传生物学采样。选择位于斋浦尔维迪亚达尔纳加尔的哮喘之家大楼作为空气孢子捕捉地点。招募患有 AR 或哮喘等呼吸道过敏问题的新患者参与研究。在获得这些患者的同意后进行皮肤点刺试验（SPT）。将树木、杂草和草类的月度花粉计数与新患者数量进行相关性分析。编制了两年的花粉日历。
2011 年和 2012 年的年平均花粉计数为 14460.5。在分析中，鉴定出 37 种物种或科。花粉计数在 3 月至 4 月以及 8 月至 10 月出现两个季节性峰值。1 月和 6 月在两年中花粉计数最低。草类花粉的月平均计数与新患者数量显示出显著相关性（=0.59）。然而，树木和杂草的月度花粉计数无相关性。单个花粉的花粉计数与该花粉的 SPT 阳性率之间的相关性仅与 显示出显著相关性。
可以得出结论，一年中花粉计数有两个峰值，分别在 3 月至 4 月和 8 月至 10 月。草类的月平均花粉计数与新患者的医院就诊次数显著相关。
