目的:探討慢性阻塞性肺疾病(COPD)合并糖尿病患者的肺功能及血氣分析特點并分析其臨床意義。方法:選取2008年1月~2009年1月在我院門診就診的穩定期患者53例作為研究對象,并根據是否合并糖尿病分為COPD合并糖尿病組26例,單純COPD組27例,并通過肺功能檢測及血氣分析,檢測肺活量 (VC)、用力肺活量 (FVC)、第1秒鐘用力呼氣容積 (FEV1)、 FEV1/用力肺活量 (FVC)、用力呼氣中期流速PEF(25%～75%) 、肺一氧化碳彌散(DLCO)及肺一氧化碳彌散量實測值占預計值的百分比(DLCO /PRED)等肺功能指標及PaO2、PaCO2等血氣指標,并進行組間分析。結果:COPD合并糖尿病組肺通氣功能指標VC、FVC、FEV1、PEF(25%～75%)和彌散功能指標DLCO、DLCO/PRED及PaO2顯著低于單純 COPD組。結論:COPD合并糖尿病時肺通氣功能和彌散功能都可受損。
Objective To investigate the rate of pulmonary function test, medication treatment, and relevant factors among patients with chronic obstructive pulmonary disease (COPD) aged 40 years or older in community of Guangdong Province, and to provide evidences for targeted intervention of COPD. Methods A multistage stratified cluster sampling was conducted in the community residents, who participated in the COPD surveillance project of in Guangdong Province during 2019 to 2020. A total of 3384 adults completed questionnaire and pulmonary function test. The Rao-Scott χ2 test based on complex sampling design, and non-conditional Logistic regression were used to explore possible influencing factors of pulmonary function test and medication treatment in COPD patients. Results Out of the 3384 adults, 288 patients with COPD were confirmed, including 253 males (87.8%) and 35 females (12.2%), and 184 patients (60.4%) were over 60 years old or more. The pulmonary function test rate was 10.7% [95% confidence interval (CI) 6.8% - 14.6%], and medication treatment rate was 10.6% (95%CI 7.0% - 14.1%). The results showed that wheezing, awareness of COPD related knowledge and pulmonary function test were related to whether COPD patients had pulmonary function test (P<0.05). Wheezing and personal history of respiratory diseases were related to medication treatment rate (P<0.05). Conclusions The rates of pulmonary function test and medication treatment among COPD patients aged 40 years or older are low. Health education about COPD should be actively carried out, and the screening of individuals with a history of respiratory diseases and respiratory symptoms should be strengthened so as to reduce the burden of COPD diseases.
Objective To explore the effect of systematic respiratory training on lung function in patients with mild to moderate traumatic brain injury. Methods A total of 60 patients with craniocerebral injury who received conservative treatment from January 2015 to June 2017 were selected. These patients were randomly divided into two groups: breathing training group for systematic breathing training and conventional treatment group for conventional rehabilitation training. Pulmonary infection, length of hospital stay, lung function determination, vital capacity, percentage of maximal ventilation, patient’s oxygen saturation, arterial partial pressure of oxygen, peak airway pressure, airway resistance, and respiratory mechanics were observed. Results The pulmonary infection rate and the length of hospital stay in the respiratory training group were 10.0% and (8.17±0.99) days, respectively, which were significantly lower than those in the conventional treatment group [33.3% and (12.67±0.99) days, respectively]; the differences between the two groups were statistically significant (P<0.05). At the same time, pulmonary function, oxygen saturation, arterial oxygen tension, and respiratory mechanics were all better in the breathing training group than those in the conventional treatment group, the differences between the two groups were statistically significant (P<0.05). Conclusion Breathing training can significantly improve the recovery of lung function in patients with mild to moderate traumatic brain injury, reduce the incidence of complications and effectively improve the prognosis.
Abstract: Objective To investigate the clinical effect of using zerobalanced ultrafiltration on postoperative lung function of coronary artery bypass grafting (CABG) patients under cardiopulmonary bypass (CPB). Methods Forty coronary artery bypass grafting patients in the First Affiliated Hospital of China Medical University from June 2006 to December 2008 were enrolled in this study, and were divided into two groups based on different ultrafiltration procedures. Patients in the experimental group (n=20), 14 males and 6 females, with an age of 65.43±8.31 years, underwent zerobalanced ultrafiltration and conventional ultrafiltration after CPB was carried out. Patients in the control group (n=20), 15 males and 5 females, with an age of 66.51±7.62 years, only underwent conventional ultrafiltration after temperature restoration. Preoperative pulmonary function and arterial blood gas were tested routinely. Airway resistance (Raw), oxygenation index (OI) and alveolar arterial oxygen difference ［P(Aa)O2］ were measured at the following points: before CPB, at the end of CPB, 6 hours, and 12 hours after operation. Postoperative mechanical ventilation time was also recorded. Results There was no significantly statistical difference between the two groups of patients in pulmonary function and arterial blood gas indexes before operation, and Raw, OI and P(Aa)O2 before CPB (Pgt;0.05). Nevertheless, at the points of 6 hours and 12 hours after operation, Raw ［2.22±0.31 cm H2O/(L·s) vs. 2.94±0.42 cm H2O/(L·s), F=0.061, Plt;0.05; 1.89±0.51 cm H2O/(L·s) vs. 2.52±0.29 cm H2O/(L·s), F=0.096, Plt;0.05］ and P(Aa)O2 (86.74±7.63 mm Hg vs. 111.66±7.49 mm Hg, F=0.036, Plt;0.05; 74.82±5.67 mm Hg vs. 95.23±6.78 mm Hg, F=0.059, Plt;0.05) of patients in the experimental group were significantly lower than those of patients in the control group. At the same points, OI of patients in the experimental group was significantly higher than that of patients in the control group (384.33±30.67 vs. 324.63±31.22, F=0.033, Plt;0.05; 342.24±23.43 vs. 293.67±25.44, F=0.047, Plt;005). Ventilator support time of the experimental group was shorter than the control group (15.44±3.93 h vs. 20.68±5.77 h,Plt;0.05). Conclusion Zerobalanced ultrafiltration can improve pulmonary function after coronary artery bypass grafting and shorten postoperative mechanical ventilation time.
目的:觀察在青少年脊柱側凸患者中術前實施綜合性呼吸操鍛煉的臨床效果方法:選取46例伴有不同程度肺功能障礙的青少年脊柱側彎患者作為研究對象,對其自入院后第一天即開始實施綜合性呼吸操鍛煉,觀察術前肺功能的變化情況及術后肺部并發癥的發生情況。結果:鍛煉后患者肺活量(VC)、肺容量(TLC)、用力肺活量(FVC)、最大通氣量(MVV),等肺功能指標較鍛煉前有明顯改善,差異具有統計學意義(Plt;0.05);術后血氧飽和度gt;95%;無肺部并發癥發生。結論:入院后即進行綜合性呼吸操鍛煉能在近期有效改善患者肺功能,提高患者對脊柱矯形手術的耐受力,對預防和減少術后肺部感染以及呼吸功能不全的發生有積極作用。
Objective To investigate the protective effects of recombinant human insulin-like growth factor-1 ( rhIGF-1) on apoptosis of diaphragm in rats with COPD and its impact on pulmonary function. Methods Forty-five male Wistar rats were randomly divided into three groups, ie. a normal control group, a model group, and an IGF-1 intervention group, with 15 rats in each group. The rats in the model group and IGF-1 group were exposed to 5% smoke ( 30 min perday, lasting 28 days) in a sealed box, and 200 μg lipopolysaccharide was injected intratracheally on the 1st and 14th day. The rats in the IGF-1 group were given rhIGF-1 ( 60 μg /100 g) additionally by subcutaneous injection once a day, lasting 28 days. On the 1st, 14th, 28th day, 5 rats from each group were sacrificed. The weight, rate of apoptosis, Fas gene and Fas protein expression of isolated diaphragms were detected. The pulmonary function was measured on the 28th day before sacrificed. Results The mass of diaphragms, minute ventilation ( VE) , peak expiratory flow ( PEF) , inspiratory capacity ( IC) , forced expiratory volume in 0. 3 second ( FEV0. 3) of themodel groupand IGF-1 group were all decreased compared with the control group ( P lt; 0. 05) . The mass of diaphragms, VE, IC of the IGF-1 group were higher than those of the model group ( P lt;0. 05) , and the differences of PEF and FEV0. 3 were not significant ( P gt; 0. 05) . On the 14th, 28th day, rate of apoptosis, Fas gene and protein expressions in the IGF-1 group were lower than those in the model group, and still higher than those in the control group ( P lt; 0. 05) . Conclusions Fas/FasL mediated apoptosis way is involved in the diaphragm apoptosis. rhIGF-1 may reduce the apoptosis of the diaphragmand improve the VE and IC of rats with COPD by intervening Fas/FasL pathway.
Objective To analyze the quality control results of forced vital capacity ( FVC) test in elderly patients. Methods 534 lung function test reports of the elderly patients ( ≥ 80 years old) from January 2010 to December 2010 were collected from pulmonary function testing laboratory in Shougang Hospital of Peking University. Based on the report results, the selected patients were divided into four groups, ie. a normal group, a restricted group, an obstructed group, and a mixed group. The results of lung function tests that met the criteria of quality control in each group were statistically analyzed. Results A total of 534 reports were collected, of which 36 were not credible and treated as test failure. Of the 498 credible reports, 99.6% ( 496 /498) met the start-of-test criteria for quality control. 95. 8% ( 477/498) met the exhalation process test criteria for quality control with the highest rate of 98.6% ( 217 /220) in the obstructed group and the lowest rate of 85. 9% ( 55 /64) in the restricted group. The difference between two groups was significant (Plt;0.01) . 68.1% ( 339/498) met the end-of-test criteria for quality control with the highest rate of 88.6% ( 195/220) in the obstructed group and the lowest rate of 18.8% ( 12/64) in the restricted group. The difference between two groups was significant (Plt;0.01) . 16.7% (88/498) of the reports could be analyzed for repeatability, and the obstructed group had the highest rate of 22.3% (49/220) while the restricted group had the lowest rate of 6.3% ( 4/64) . The difference between two groups was significant too (Plt;0.01) . Only 14.6% (73/498) of the reports met all of the criteria listed above. Conclusions Elderly patients can also complete FVC test but the result may be not credible. There are still lots to be improved in FVC test for elderly patients.
Objective To evaluate the effect of cardiopulmonary bypass （CPB） on pulmonary function in infants with variable pulmonary arterial pressure resulting from congenital ventricular septal defect （VSD）. Methods Twenty infants with VSD underwent corrective surgery were divided into pulmonary hypertension group （n= 10） and non-pulmonary hypertension group （n= 10） according to with pulmonary hypertension or not. Pulmonary function was measured before CPB , 3h,6h,9h,12h,15h,18h,21h, and 24h after CPB and duration for mechanical ventilation and cardiac intensive care unit stay were recorded. Results Pulmonary function parameters before CPB in nonpulmonary hypertension group were superior to those in pulmonary hypertension group （P〈0.01）, and pulmonary function parameters after CPB deteriorated than those before CPB （P〈0.05）, especially 9h,12h and 15h after CPB （P〈0.01）. Compared to pulmonary function parameters before CPB, pulmonary function parameters of pulmonary hypertension group at 3h after CPB were improved （P〉0.05）, but they deteriorated at 9h,12h and 15h after CPB （P〈0. 05）. Pulmonary function parameters at 21h and 24h after CPB was recoverd to those before CPB in two groups. Conclusions Although exposure to CPB affects pulmonary function after VSD repair in infants, the benefits of the surgical correction to patients with pulmonary hypertension outweigh the negative effects of CPB on pulmonary function. Improvement of cardiac function can avoid the nadir of pulmonary function decreasing. The infants with pulmonary hypertension will be weaned off from mechanical ventilator as soon as possible, if hemodynamics is stable, without the responsive pulmonary hypertension or pulmonary hypertension crisis after operation.
ObjectiveTo analyze the relationship between preoperative pulmonary function indexes and postoperative pneumonia (POP) in patients undergoing upper gastrointestinal surgery.MethodsThe clinical data of 303 patients who underwent lung function examination and upper gastrointestinal surgery in West China Hospital, Sichuan University from September 2020 to January 2021 were prospectively collected and analyzed. There were 217 males and 86 females, with an average age of 61.61±10.42 years. Pulmonary function was evaluated from four aspects including ventilatory function, pulmonary volume, diffusion function and airway resistance. Relevant pulmonary function indicators were displayed as the percentage of actual measured value to predicted value (%pred). The outcome index was pneumonia within 30 days after the surgery. Logistic regression was used to analyze the relationship between preoperative pulmonary function indicators and POP.ResultsA total of 196 patients with gastric cancer and 107 patients with esophageal cancer were included, and the incidence of POP in patients undergoing upper gastrointestinal surgery was 26.7% (81/303). Patients with preoperative low peak expiratory flow (PEF%pred) had a 3.094 times higher risk of developing POP than those with normal PEF%pred [OR=3.094, 95%CI (1.362, 7.032), P=0.007]. The incidence of POP had no correlation with the other preoperative indicators.ConclusionPreoperative PEF%pred may be an important indicator for predicting the occurrence of POP in patients undergoing upper gastrointestinal surgery.
Objective To investigate the clinical significance of changes in cardiopulmonary function, degree of hypoxia and inflammatory factors in obstructive sleep apnea hypopnea syndrome (OSAHS) patients combined chronic obstructive pulmonary disease (COPD). Methods A retrospective case-control study was conducted on 209 patients with OSAHS admitted from October 2015 to April 2022. The OSAHS patients were divided into an OSAHS-only group, an OSAHS combined with mild COPD group, an OSAHS combined with moderate COPD group, and an OSAHS combined with severe and very severe COPD group based on pulmonary function test. The characteristics of cardiopulmonary function [(pulmonary artery pressure, N terminal pro B type natriuretic peptide (NT-proBNP), forced expiratory volume in the first second to forced vital capacity (FEV1/FVC), percent predicted value of FEV1 (FEV1%pred)], hypoxia indexes [night lowest saturation of pulse oxygen (NL-SpO2), night medial saturation of pulse oxygen (NM-SpO2), saturation of pulse oxygen less than 85% of the time (TS85), diurnal lowest saturation of pulse oxygen (DL-SpO2)], inflammatory factor indicators [procalcitonin (PCT), interleukin-6 (IL-6), hypersensitive C-reactive protein (hs-CRP), neutrophil to lymphocyte ratio (NLR)], and other characteristics were compared separately. The partial correlation analysis and logistic regression were used to analyze the influencing factors of OSAHS with COPD. Results There were statistically significant differences in age, days of hospitalization, cardiopulmonary function indexes, hypoxia indexes and inflammatory factor indexes between the OSAHS combined with COPD group and the OSAHS-only group (all P<0.05). And pulmonary artery pressure, NT-proBNP, TS85, IL-6, and NLR were higher and DL-SpO2, NL-SpO2, and NM-SpO2 were lower in the OSAHS combined with severe and very severe COPD group compared with the OSAHS combined with mild COPD group (all P<0.05). In the partial correlation analysis, FEV1%pred was negatively correlated with pulmonary artery pressure, NT-proBNP, TS85, IL-6, hs-CRP and NLR, and positively correlated with DL-SpO2, NL-SpO2 and NM-SpO2 (all P<0.05). In regression analysis, NLR and TS85 were the main risk factors for OSAHS combined with COPD (all P<0.05). Conclusions OSAHS patients combined with COPD have longer hospital days, greater burden of hypoxia, cardiopulmonary function and inflammation compared with patients with OSAHS alone, especially more significant in patients with poorer pulmonary function, and higher incidence of pulmonary heart disease, atrial fibrillation, and lower limb edema. NLR and TS85 are the main risk factors in patients with OSAHS combined with severe and very severe COPD.