OBJECTIVETo evaluate the effect of hemoperfusion on tetramine poisoned patients.

METHODSThree tretramine poisoned cases treated with hemoperfusion were selected. The samples during and after hemoperfusion were collected and analyzed by gas chromatography.

RESULTSTetramine concentration at the inlet of the artificial kidney kept the same level during hemoperfusion. After hemoperfusion, the tetramine concentration in patient plasma changed little in 72 hours. 1.03-1.55 mg of tetramine was adsorbed by the instrument of hemoperfusion after two hours' hemoperfusion.

CONCLUSIONAlthough hemoperfusion was not so effective to reduce blood tetramine concentration in patients, it could clear about 1 mg tetramine for one time.

Bridged-Ring Compounds ; blood ; poisoning ; Chromatography, Gas ; Hemoperfusion ; Humans

Objective To study the effect of clove oil on bacterial biofilm of Streptococcus pneumoniae. Methods The components of clove oil were determined by GC-MS mass spectrometry. The suspension of streptococcus mutans was prepared to carry out the germicidal test, and to determine the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) of clove oil. The effects of different concentrations of clove oil on the formation of biofilm were observed by laser confocal microscopy, and the average fluorescence intensity of live bacteria and dead bacteria in biofilm was recorded. Results Determination of clove oil 8 components were analyzed by GC-MS mass spectrometry method, most of the Eugenol content was 48.93%, followed by the Caryophyllene 20.78%, Methylis salicylas 14.96%. Through MIC, MBC and the experimental results showed that clove oil had antibacterial activity of Proteus, and with the increase of clove oil concentration, the inhibitory effect was better. When it reached a certain concentration, it can showed bactericidal effect that the MIC and MBC were 0.3125%, 0.6250%. The clove oil also had inhibitory effect on Streptococcus mutans biofilm with the concentration depedence. When the concentration of clove oil was 2.5000%, the average fluorescence intensity (live/dead bacteria) was 0.082 ± 0.007, the proportion of living bacteria decreased obviously, and biofilm disappeared. Conclusions The clove oil not only has inhibitory effect on Streptococcus mutants, but also can inhibit and clear the biofilm formation of Streptococcus.

Objective:To explore the clinical value of "hydration therapy" in the treatment of severe acute paraquat poisoning (APP).Methods:A prospective historical control observation was conducted. Fifty-eight patients with severe APP admitted to Shouguang People's Hospital Affiliated to Weifang Medical College from February 2014 to June 2019 were enrolled. Twenty-six patients admitted before May 10th, 2016 were enrolled in the standard treatment group. After being admitted to intensive care unit (ICU) from the department of emergency, patients in the standard treatment group were immediately given standard treatment such as repeated gastric lavage, catharsis, adsorption of poison by activated carbon or montmorillonite powder, drug treatment and blood purification. From May 10th, 2016, 32 patients were enrolled in the intensive treatment group. On the basis of standard treatment, "hydration therapy" was carried out, that was, 0.9% NaCl and/or 5% glucose injection were used for continuous intravenous infusion throughout the day, so as to ensure that the total amount of fluid infusion per day reached 200 mL/kg within 48-72 hours after ICU admission. At the same time, furosemide was used to strengthen diuresis to ensure the balance of water and electrolyte. If heart failure or acute pulmonary interstitial edema occurred during the treatment, "hydration therapy" should be stopped immediately. Six months after treatment, all patients were followed up. The patients with normal activity, no complaints of discomfort and no damage of heart, lung, liver, kidney and other organs were regarded as cured. The therapeutic effect of "hydration therapy" was evaluated.Results:There was no significant difference in gender, age, dosage or time from taking poison to ICU between the two groups. In the intensive treatment group, 32 patients did not appear heart failure during continuous rehydration treatment. Follow-up after 6 months showed that the overall cure rate in the intensive treatment group was significantly higher than that in the standard treatment group [59.4% (19/32) vs. 19.2% (5/26), P < 0.05]. In the 6-month follow-up, there was no significant difference in age or time from taking poison to ICU between the two groups, but the dosage in the intensive treatment group was significantly higher than that in the standard treatment group (mL: 54.06±26.03 vs. 23.00±4.47, P < 0.05). After 6 months of follow-up, chest CT showed that the lesions of pulmonary fibrosis of cured patients in both group gradually reduced with time, not completely progressive and irreversible. Conclusion:"Hydration therapy" with intensive diuresis can significantly improve the rescue success rate of patients with severe APP.

OBJECTIVETo investigate the relationship between semi-quantification of urine paraquat and the severity of acute paraquat poisoning, and to evaluate the prognostic value of the test in patients with acute paraquat poisoning.

METHODSA total of 179 patients with acute paraquat poisoning were categorized into four groups according to their semi-quantification results of urine paraquat: +group (n = 36), ++group (n = 23), +++ group (n = 25), and ++++group (n = 95). The clinical features, severity of hepatic and renal injuries, respiratory failure, and clinical classification were compared between these four groups. Kaplan-Meier analysis was used to evaluate the survival rate.

RESULTSThe 60-day mortality was 45.25% (81/179). The amount of ingestion increased significantly from +group to ++++group (P < 0.05). No patient in +group was found to have serious complications, while most patients in ++++group suffered organ dysfunction or even organ failure. The incidence of acute respiratory failure, renal failure, and hepatic failure in ++++group was significantly higher than that in +group, ++group, and +++group (P < 0.05). The urine paraquat concentration was positively correlated with the clinical severity of acute paraquat poisoning (Spearman correlation coefficient = 0.720, P < 0.01). Kaplan-Meier survival analysis showed that the mortality of ++++group (73.7%) was significantly higher than that of +++group (40%), ++group (4.3%), and +group (0%) (P < 0.05).

CONCLUSIONThe semi-quantification of urine paraquat is a promising test in evaluating the severity of acute paraquat poisoning. This test can be used to guide therapy and to predict the outcomes of patients suffering acute paraquat poisoning.

Acute Disease ; Adolescent ; Adult ; Female ; Humans ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Paraquat ; poisoning ; urine ; Prognosis ; Young Adult

BackgroundChronic obstructive pulmonary disease （COPD） is a common chronic respiratory disease， and patients with COPD often experience substantially emotional difficulties， such as anxiety and depression， all of which may cause serious detriment to the prognosis of patients. As a non-pharmacological intervention in clinical practice， group mindfulness-based stress reduction therapy （MBSR） is beginning to emerge， while has rarely been studied in COPD patients with concurrent emotional difficulties. ObjectiveTo evaluate the effects of group MBSR on depression， state of mindfulness and pulmonary function in stable COPD patients， so as to provide references for the application of group MBSR in patients with COPD. MethodsA total of 97 patients with stable COPD who were followed up in the Department of Respiratory and Critical Care Medicine of Mianyang Third People's Hospital from January to October 2019 were selected as the study objects， and they were assigned into study group （n=50） and control group （n=47） by random number table method. All individuals received routine medication therapy and an 8-week health education， based on this， participants in study group partook an 8-week intervention comprising group MBSR. At the baseline， 4 weeks and 8 weeks of intervention， participants were assessed with Self-rating Depression Scale （SDS）， Five Facet Mindfulness Questionnaire （FFMQ） and COPD Assessment Test （CAT）， as well as the pulmonary function testing. ResultsThere were 41 patients in study group and 42 cases in control group completed the study. The group * time interaction was interpreted as significant between two groups for SDS， FFMQ and CAT scores （F=54.858， 86.161， 69.862， P<0.01）. Baseline SDS， FFMQ and CAT scores of the two groups yielded no statistical difference between two groups （F=0.240， 0.052， 0.019， P>0.05）， while study group scored lower on SDS and CAT （F=12.900， 38.511， 7.797， 28.824， P<0.01） and higher on FFMQ （F=27.324， 82.412， P<0.01） than those of the control group after 4 and 8 weeks of intervention. With the prolongation of intervention time in study group， participants demonstrated an overall reduction in SDS and CAT scores （F=109.753， 124.144， P<0.01）， and an increase in FFMQ scores （F=228.194， P<0.01）. There were no between-group differences in forced expiratory volume in one second as percentage of predicted volume （FEV1%pred） after 4 and 8 weeks of intervention （F=0.104， P=0.748） ， and the within-group changes in FEV1%pred value over the intervention period in study group was not statistical （F=0.561， P=0.458）. ConclusionGroup MBSR may help relieve depressive symptoms， enhance mindfulness level， and alleviate clinical symptoms in stable COPD patients， but has no effect on pulmonary function. ［Funded by Mianyang Health and Health Commission Scientific Research Project （number， 201916）］