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Nevin Manimala Statistics

Multicenter cross-sectional investigation on the cleaning status and influencing factors of skin cleaning outside the wound in adult trauma patients

Zhonghua Shao Shang Za Zhi. 2021 May 20;37(5):429-436. doi: 10.3760/cma.j.cn501120-20210116-00023.

ABSTRACT

Objective: To investigate the status and influencing factors of skin cleaning outside wound (hereinafter referred to as skin) in adult trauma patients. Methods: A multicenter cross-sectional investigation was conducted. From September 1 to 30, 2020, a total of 952 adult trauma patients who met the inclusion criteria were admitted to wound care clinics or trauma surgery wards of 13 military or local Grade Ⅲ Level A hospitals, including the General Hospital of the Eastern Theater Command of People’s Liberation Army and the Army Medical Center, etc. A self-designed questionnaire on cleaning status of skin in trauma patients was released through the “questionnaire star” website to investigate basic information such as gender, age, education level, living status, and self-care ability, trauma information such as cause of injury, wound duration, trauma site, trauma depth, wound pain, wound peculiar smell, and wound cleaning solution, and skin cleaning status after injury such as whether to clean or not, cleaning method, cleaning frequency, cleaning duration in each time, or reasons for not cleaning. The patients who cleaned skin regularly after injury were included in cleaning group, and the other patients were included in no cleaning group. The basic information, trauma information, and skin cleaning status after injury of patients in 2 groups were investigated. Data were statistically analyzed with chi-square test, and binary multivariate logistic regression analysis was performed on indicators with statistically significant differences between the two groups to screen the independent influencing factors of skin cleaning in trauma patients. Results: A total of 952 questionnaires were received, and the recovery rate was 100%. Three invalid questionnaires were eliminated, and 949 valid questionnaires were obtained, with an effective rate of 99.68%. In 949 patients, there were 461 (48.6%) males and 488 (51.4%) females, aged 18-100 (50±18) years. Most patients were less than 60 years old, lived with their families, and could take care of themselves completely. Nearly half of the patients were with junior high school or below education level. The main causes of injury were sharp cutting injury and falling injury, the wound duration was 2-365 days, most of the injured parts were limbs and trunk, the wound depth was mostly full-thickness injury, and most patients had wound-related pain and no peculiar smell and used 5 g/L iodophor to clean the wound. Totally 684 (72.1%) patients cleaned their skin after injury, mainly by scrubbing with warm water, the cleaning frequency was mainly once or twice a week, and the cleaning time was mainly 10 or 15 min for each time. Totally 265 (27.9%) patients didn’t clean their skin after injury, and the main causes for not cleaning were following the doctor’s advice, followed by worrying about wound infection and loss of self-care ability. There were significantly statistical differences in constituent ratios of education level, self-care ability, cause of injury, wound pain, and wound peculiar smell of patients in 2 groups (χ2=12.365, 24.519, 22.820, 9.572, 92.342, P<0.01). Education level, self-care ability, cause of injury, wound pain, and wound peculiar smell were potential influencing factors of skin cleaning in patients. Binary multivariate logistic regression analysis showed that self-care ability, wound pain, and wound peculiar smell were independent influencing factors of skin cleaning in patients (odds ratio=1.51, 0.52, 3.72, 95% confidence interval=1.08-2.12, 0.42-0.89, 2.66-5.22, P<0.05 or P<0.01). Conclusions: Self-care ability, wound pain, and wound peculiar smell are independent influencing factors of skin cleaning in adult trauma patients.

PMID:34044525 | DOI:10.3760/cma.j.cn501120-20210116-00023

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Nevin Manimala Statistics

Prognostic Value of Neutrophil-to-Lymphocyte Ratio in Obstructing Colorectal Cancer Treated by Endoscopic Stenting as a Bridge to Surgery

Ann Coloproctol. 2021 May 28. doi: 10.3393/ac.2020.05.25. Online ahead of print.

ABSTRACT

PURPOSE: Neutrophil-to-lymphocyte ratio (NLR) has been reported to predict adverse survival outcomes among patients with colorectal cancer (CRC). This study evaluates the prognostic value of NLR among patients with obstructing CRC who successfully underwent stenting before curative surgery.

METHODS: We retrospectively reviewed patients who underwent stenting before surgery. Patient demographics, tumor characteristics, perioperative outcomes, recurrence-free survival (RFS), and overall survival (OS) were analyzed. NLR was calculated from the differential white blood cell counts at least 4 days after successful stenting, before elective surgery. Optimal cutoff to dichotomize NLR was obtained by maximizing log-rank test statistic with recursive partitioning of KaplanMeier RFS and OS curves. The optimal cutoff for high NLR was ≥ 5 at presentation before stenting, and ≥ 4 after stenting.

RESULTS: Fifty-seven patients with localized obstructing CRC underwent successful endoscopic stenting before curative surgery. High NLR was associated with lymphovascular invasion (P = 0.006) and apical lymph node involvement (P = 0.034). Major perioperative complication(s) (hazard ratio [HR], 11.34; 95% confidence interval [CI], 2.49 to 51.56; P < 0.01) and high NLR (HR, 3.69; 95% CI, 1.46 to 9.35; P < 0.01) negatively impacted OS on univariate and multivariate analyses. High NLR negatively impacted RFS on univariate analysis (HR, 2.91; 95% CI, 1.29 to 6.60; P = 0.01).

CONCLUSION: NLR of ≥ 4 after stenting is an independent prognostic factor among patients with obstructing localized CRC who are successfully decompressed by endoscopic stenting before curative surgery.

PMID:34044498 | DOI:10.3393/ac.2020.05.25

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Nevin Manimala Statistics

A comparative study of transperitoneal transmesenteric approach versus paracolic sulci approach laparoscopic adrenal tumorectomy for treatment of primary hyperaldosteronism on left side

Zhonghua Yi Xue Za Zhi. 2021 Jun 1;101(20):1513-1517. doi: 10.3760/cma.j.cn112137-20210208-00385.

ABSTRACT

Objective: To compare the therapeutic effect of transperitoneal transmesenteric approach versus paracolic sulci approach laparoscopic adrenal tumorectomy for treatment of left-sided primary hyperaldosteronism. Methods: From January 2017 to July 2019, the clinical data of 70 patients with left-sided primary hyperaldosteronism (PHA) who underwent surgery in the First Hospital of Lanzhou University and five other hospitals in Gansu Province were retrospectively analyzed. There are 43 male and 27 female patients. Among them,28 patients were performed transperitoneal transmesenteric approach laparoscopic adrenal tumorectomy and 42 patients were performed transperitoneal paracolic sulci approach laparoscopic adrenal tumorectomy. The general information and perioperative data of the two groups were compared. Results: All 70 cases of surgery were successfully completed. As compared with the paracolic sulci approach group, the operation time was significantly shorter in the transmesenteric approach group[(26.7±8.8)vs (38.9±7.1)min,P<0.001)], and the estimated blood loss was less in the transmesenteric approach group[45(30,50) vs 50(40,60)ml,P=0.042]. There was no statistically significant difference in the postoperative hospitalization days between the two groups[(4.4±1.0)vs(4.5±1.0)d, P=0.669)]. The electrolytes and aldosterone to renin ratio returned to a healthy level in the postoperative one month, and the blood pressure also returned to a healthy level in 53 (75.7%) patients. Conclusion: Transperitoneal transmesenteric approach laparoscopic adrenal tumorectomy is safe and feasible, with a short operation time and relatively less estimated blood loss.

PMID:34044519 | DOI:10.3760/cma.j.cn112137-20210208-00385

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Nevin Manimala Statistics

Evaluation of the Neuroprotective Effect of Pycnogenol in a Hypoxic-Ischemic Brain Injury Model in Newborn Rats

Am J Perinatol. 2021 May 27. doi: 10.1055/s-0041-1730349. Online ahead of print.

ABSTRACT

OBJECTIVE: This study aimed to evaluate the efficacy of Pycnogenol (PYC) and its antioxidant and antiapoptotic effect in an experimental hypoxic-ischemic (HI) rat model.

STUDY DESIGN: A total of 24 Wistar albino rats who were on the seventh postnatal day were divided into three groups with developed HI brain injury model under the sevoflurane anesthesia: 40 mg/kg PYC was given to Group A, saline was given to Group B, and the sham group was Group C. Neuronal apoptosis was investigated by terminal deoxynucleotidyl transferase dUTP nick end labeling and immunohistochemically stained manually with primer antibodies of tumor necrosis factor-α and interleukin-1β.

RESULTS: The neuronal cell injury was statistically lower in the PYC treatment group.

CONCLUSION: This is the first study that investigates the role of PYC in the HI brain injury model. PYC reduces apoptosis and neuronal injury in the cerebral tissue of the rats. PYC may be a protective agent against hypoxic-ischemic encephalopathy.

KEY POINTS: · This is the first study that investigates the role of PYC in the HI brain injury model.. · PYC may be a protective agent against hypoxic-ischemic encephalopathy.. · Sevoflurane should not be preferred in rat studies where neuronal apoptosis will be investigated..

PMID:34044458 | DOI:10.1055/s-0041-1730349

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Nevin Manimala Statistics

The Impact of Yoga on Inspiratory Muscle Performance in Veterans with COPD: A Pilot Study

Int J Yoga Therap. 2021 May 27. doi: 10.17761/2021-D-19-00066. Online ahead of print.

ABSTRACT

Chronic obstructive pulmonary disease (COPD) causes respiratory muscle weakness that leads to disabling dyspnea and poor functional performance. Therapies are often geared to improve inspiratory muscle performance. Yoga has been shown to improve exercise capacity, quality of life, and some pulmonary function measures in COPD, but little research has examined the effects of yoga training on inspiratory muscle performance. The purpose of this study was to investigate the effects of yoga training on inspiratory muscle performance in military veterans using the Test of Incremental Respiratory Endurance (TIRE). A prospective pilot study examined a 6-week yoga training program consisting of asana (poses) and pranayama (controlled breathing). Subjects had baseline inspiratory muscle weakness. The TIRE measured inspiratory muscle performance via the PrO2 device, providing maximal inspiratory pressure, sustained maximal inspiratory pressure, and inspiratory duration. Secondary measures included 6-minute walk distance, St. George Respiratory Questionnaire, Hospital Anxiety and Depression Scale, and spirometry. Mean age and BMI of subjects were 67 ± 3.6 years and 20.7 ± 3.3, respectively. The majority of subjects had severe (28.7%) or very severe (57.1%) COPD. Statistically significant improve m e n t s were seen in maximal inspiratory pressure (39.0 ± 14.1 cmH2O to 56.4 ± 20.6 cmH2O) and sustained maximal inspiratory pressure (244.1 ± 100.6 PTU to 308.1 ± 121.2 PTU). No statistically significant improvements we re observed in 6-minute walk distance, St. George Respiratory Questionnaire, Hospital Anxiety and Depression Scale, or spirometry. Yoga training has the potential in improve inspiratory muscle performance in veterans with severe to very severe COPD who present with inspiratory muscle weakness. This is of importance because improving inspira-tory muscle performance has been shown to improve COPD outcomes.

PMID:34044450 | DOI:10.17761/2021-D-19-00066

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Nevin Manimala Statistics

Neonatal Outcome of Babies Born to Women 40 Years and Older in a Jamaican Birth Cohort

Am J Perinatol. 2021 May 27. doi: 10.1055/s-0041-1730350. Online ahead of print.

ABSTRACT

OBJECTIVE: The study aimed to determine the outcome of babies born to women ≥40 years in a Jamaican birth cohort.

PATIENTS AND METHODS: Maternal demographic data and neonatal data for women ≥40 years who delivered live singleton babies and their younger counterparts aged 20 30 years were extracted from the JA KIDS birth cohort dataset. Outcome measures were preterm birth, low birth weight, very low birth weight, extremely low birth weight, macrosomia, a low 5-minute Apgar score <7, admission to the neonatal unit, and neonatal death. Descriptive analyses were performed; statistical significance was taken at the level p <0.05.

RESULTS: A total of 5,424 women and their babies were entered into the study, 5,099 (94%) women were aged 20 to 30 years (mean age ± standard deviation [SD]: 24.5 ± 3.2 years) and 325 (6%) were aged ≥40 years (mean age ± SD: 41.5 ± 1.6 years). A greater percentage of preterm babies (18%) were born to women ≥40 years than to their younger counterparts (14%; p = 0.04). There was no difference in the proportion of low birth weight infants, very low birth weight infants, or extremely low birth weight infants born between the two groups (p > 0.05). There was also no significant difference in the proportion of babies who were macrosomic and in those who had a low 5-minute Apgar score <7. There were 866 (16%) neonatal admissions, 67/325 (21%) of these babies were born to women aged ≥40 years and 799/5,099 (16%) were born to their younger counterparts (p = 0.01). The commonest reason for admission was prematurity. While 60 babies died, there was no significant difference between both groups with 56 (1%) born to women 20 to 30 years and 4 (1%) born to women ≥40 years (p = 0.48).

CONCLUSION: Adverse outcomes noted for babies born to women ≥40 years were prematurity and the need for neonatal admission. However, no excess mortality was recorded.

KEY POINTS: · Women 40 years and older are more likely to have a chronic illness such as hypertension and diabetes and to have an operative delivery.. · Babies born to women 40 years and older are more likely to be late premature infants and require neonatal admission.. · However, there is no increased risk of neonatal mortality..

PMID:34044455 | DOI:10.1055/s-0041-1730350

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Nevin Manimala Statistics

The in vivo Tetrahymena thermophila extracellular glucose drop assay for characterization of mammalian insulin activity

Eur J Protistol. 2021 May 8;79:125803. doi: 10.1016/j.ejop.2021.125803. Online ahead of print.

ABSTRACT

Insulin activity is generally determined by an in vivo rabbit blood glucose drop assay in research and industriel laboratories. The humane experimental techniques imply the use of alternative invertebrate organisms in place of animals, known as replacement rule of the 3Rs. In this study, we report an alternative in vivo extracellular glucose drop assay using unicellular invertebrate Tetrahymena thermophila to replace the use of rabbit and mouse. This assay has four major steps; growing cells, starving cells, treatment of cells and measurement of glucose drop. In this assay, 0.2 mg/ml of human, porcine and bovine insulins dropped extracellular glucose level to 16%, 14% and 12%, respectively in ten minutes. In addition, mammalian insulins respectively increased the cell area about 19%, 15%, and 16% at 6th hour with statistically significant effect on the cell growth, but not in the cell viability. The results showed that the in vivo Tetrahymena thermophila extracellular glucose drop assay could be used as an alternative assay to replace the mouse or the rabbit insulin blood glucose drop assay.

PMID:34044354 | DOI:10.1016/j.ejop.2021.125803

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Nevin Manimala Statistics

The Value of the Surprise Question to Predict One-Year Mortality in Idiopathic Pulmonary Fibrosis: A Prospective Cohort Study

Respiration. 2021 May 27:1-6. doi: 10.1159/000516291. Online ahead of print.

ABSTRACT

BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive fatal disease with a heterogeneous disease course. Timely initiation of palliative care is often lacking. The surprise question “Would you be surprised if this patient died within the next year?” is increasingly used as a clinical prognostic tool in chronic diseases but has never been evaluated in IPF.

OBJECTIVE: We aimed to evaluate the predictive value of the surprise question for 1-year mortality in IPF.

METHODS: In this prospective cohort study, clinicians answered the surprise question for each included patient. Clinical parameters and mortality data were collected. The sensitivity, specificity, accuracy, negative, and positive predictive value of the surprise question with regard to 1-year mortality were calculated. Multivariable logistic regression analysis was performed to evaluate which factors were associated with mortality. In addition, discriminative performance of the surprise question was assessed using the C-statistic.

RESULTS: In total, 140 patients were included. One-year all-cause mortality was 20% (n = 28). Clinicians identified patients with a survival of <1 year with a sensitivity of 68%, a specificity of 82%, an accuracy of 79%, a positive predictive value of 49%, and a negative predictive value of 91%. The surprise question significantly predicted 1-year mortality in a multivariable model (OR 3.69; 95% CI 1.24-11.02; p = 0.019). The C-statistic of the surprise question to predict mortality was 0.75 (95% CI 0.66-0.85).

CONCLUSIONS: The answer on the surprise question can accurately predict 1-year mortality in IPF. Hence, this simple tool may enable timely focus on palliative care for patients with IPF.

PMID:34044401 | DOI:10.1159/000516291

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Nevin Manimala Statistics

Anti-pronator components are essential to effectively alter lower-limb kinematics and kinetics in individuals with flexible flatfeet

Clin Biomech (Bristol, Avon). 2021 May 23;86:105390. doi: 10.1016/j.clinbiomech.2021.105390. Online ahead of print.

ABSTRACT

BACKGROUND: Foot orthoses are commonly used to correct for foot alterations and especially address excessive foot pronation in individuals with flatfeet. In recent years, 3D printing has taken a key place in orthotic manufacturing processes as it offers more options and can be patient specific. Hence, the purpose of this study was to evaluate whether stiffness of 3D printed foot orthoses and a newly designed rearfoot posting have an effect on lower limb kinematics and kinetics in individuals with flatfeet.

METHODS: Nineteen patients with flexible flatfeet were provided two pairs of customized 3D printed ¾ length orthotics. Foot orthoses were of different stiffness and could feature a rearfoot posting, consisting of 2-mm carbon fiber plate. Lower limb kinematics and kinetics were computed using a multi-segment foot model. One-way ANOVAs using statistical non-parametric mapping, refined by effect sizes, were performed to determine the magnitude of the effect between conditions.

FINDINGS: Foot orthoses stiffness had little effect on midfoot and forefoot biomechanics. Reductions in midfoot eversion and forefoot abduction were observed during short periods of stance with rigid foot orthoses. Adding the posting had notable effects on rearfoot kinematics and on the ankle and knee kinetics in the frontal plane; it significantly reduced the eversion angle and inversion moment at the ankle, and increased the knee abduction moment.

INTERPRETATION: Using an anti-pronator component is more effective than increasing foot orthoses stiffness to observe a beneficial impact of foot orthoses on the control of excessive foot pronation in individuals with flatfeet.

PMID:34044295 | DOI:10.1016/j.clinbiomech.2021.105390

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Nevin Manimala Statistics

Pre- and postoperative in silico biomechanics in individuals with cam morphology during stair tasks

Clin Biomech (Bristol, Avon). 2021 May 20;86:105387. doi: 10.1016/j.clinbiomech.2021.105387. Online ahead of print.

ABSTRACT

BACKGROUND: Osteochondroplasty for cam femoroacetabular impingement is a common treatment to improve hip function and prevent joint degeneration. The purpose was to compare in-silico hip biomechanics during stair tasks in pre- and postoperative patients matched with healthy controls.

METHODS: Ten symptomatic cam femoroacetabular impingement patients performed stair ascent and descent pre- and 2 years postoperatively. Patients were age, and body-mass-index matched to controls. Full-body kinematics and kinetics were computed and, muscle and hip contact forces were estimated using musculoskeletal modeling and static optimization. Stance-phases were time-normalized and compared using statistical non-parametric mapping.

FINDINGS: Preoperatives showed lower hip abduction than controls during stairs ascent (76-100%, P = .007). Pre- and postoperative showed lower hip external rotation compared to controls on stair ascent (Pre-op vs controls: 71-100%, P = .005; Post-op vs controls: 72-100%, P = .01) and stair descent (Pre-op vs controls: 0-62%, P = .001; Post-op vs controls: 0-60%, P = .001). Postoperatives showed lower iliacus force compared to preoperative (1-3%, P = .012) and control (3-6%, P = .008), and higher gluteus maximus and piriformis forces compared to controls during stair descent. Lower postoperative anterior hip contact force (0-7%, P = .004) during descent, and superior (33-35%, P = .018) during ascent compared to controls were observed. Postoperative contact forces were medialized compared to preoperative (0-2%, P = .011) and controls (1-2%, P = .016).

INTERPRETATION: Forcing participants to adhere to standardized step length/rise minimized sagittal kinematic differences between conditions and groups. Persistent reduced hip external rotation postoperatively and minor muscle force adaptations led to reduced superior hip contact force during stair ascent and reduced anterior and more medialized contact forces during stair descent.

PMID:34044296 | DOI:10.1016/j.clinbiomech.2021.105387