Abstract 19958: Evaluation of Tricuspid Regurgitation (TR) Severity Prior to and after Device Extraction in Patients with Cardiac Device Infection

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Thomas Butler ◽  
Akhlaq Khan ◽  
Abhishek Sengupta ◽  
Jonathan Sherman ◽  
Russell Denman ◽  
...  
Keyword(s):  
Risk Factors ◽  
Tricuspid Regurgitation ◽  
P Value ◽  
Cardiac Device ◽  
Clinical Complications ◽  
Device Infection ◽  
The Mean ◽  
Device Extraction ◽  
The Impact

Aim: This study sought to evaluate the impact of device extraction on the severity of TR in patients with cardiac device related infection (CDI) and infective endocarditis (CDRIE). Methods: The medical and echocardiographic records of 142 patients who had undergone device extraction for suspected infection from 2007 - 2013 were reviewed. Data on clinical complications, echocardiographic documentation of TR severity prior to and after device removal and potential risk factors for change in TR severity was obtained. A paired t test was used to evaluate whether the TR mean grade changed significantly. Patient Demographics: A total of 56 patients out of the 142 patients had TTE and/or TOE imaging. Of these patients, 22 patients had ICD’s, 27 patients had PPM’s and 7 patients had BiV Devices. The mean age was 62 years (47 males). Clinical complications included decompensated heart failure (12.5%), septic shock (8.9%), septic arthritis (8.9%), splenic abscess (1.78%), septic pulmonary embolism (5.35%), leukocytoclastic vasculitis (1.78%). Results: The mean duration of device in situ prior to extraction was 64 months (5.33yrs). The mean grade of TR prior to device extraction was grade 1.35/4 (SD=0.901, C.I. 1.16 to 1.72). The mean grade of TR post extraction was 1.54/4 (SD= 0.96 with C.I. 1.26 to 1.89). The mean difference in mean TR grade was 0.13 (C.I. 0.37 to -0.106) p >0.05. One patient had a worsening of TR by at least 2 grades post extraction. This was due to valve perforation from infection rather than extraction related trauma. This was the only patient that required surgery for clinically significant TR. Risk factors for worsening TR post extraction included the length of time leads were in situ and age of the patient. Time of Device in situ prior to extraction did not correlate significantly with severity of TR post procedure rho 0.12 (p value = 0.45). Furthermore, age at the time of the procedure did not correlate with tricuspid regurgitation severity post extraction rho 0.21 (p value = 0.18). Conclusions: Worsening of TR post extraction is uncommon and is more likely due to valve destruction from infection rather than trauma to the valve during extraction. Furthermore, a number of complications occur peri-procedurally that impacts on patient outcomes.

Abstract 15408: Risk Factors Associated With In-hospital Mortality for Cardiac Device Extraction

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
James B Hammock ◽  
Chad Colon ◽  
James Barrios ◽  
Blake Smith ◽  
Vedran Oruc ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hospital Mortality ◽  
Laboratory Data ◽  
Severe Malnutrition ◽  
Hospital Death ◽  
Cardiac Device ◽  
Extraction Procedures ◽  
Increased Risk ◽  
Device Infection ◽  
Device Extraction

Introduction: Cardiac device extraction procedures are associated with increased risk of in-hospital mortality. The objective of this study was to determine risk factors for in-hospital mortality of patients undergoing cardiac device extraction. Methods: We studied patients undergoing cardiac device removal between January 2016 and December 2019 at a single tertiary care center. Baseline patient characteristics, comorbidities, and preoperative laboratory data were obtained by database query (Table 1) . The outcome of interest was in-hospital death following cardiac device extraction. Odds ratios (OR) and confidence intervals (CI) were used to measure relationships between exposures and the main outcome. Results: Our cohort consisted of 333 patients who underwent cardiac device extraction procedures. Cardiac device infection was the indication for procedure in 48% of patients (n=161). In-hospital mortality occurred in 9% of patients (n=29). Patients that died inpatient post-operatively were more likely to be male gender (OR 3.59, 95% CI [1.2, 10.6], p = 0.02), have acute kidney failure (OR 3.17, 95% CI [1.42, 7.05], p = 0.005), have anemia (OR 3.22, 95% CI [1.49, 6.99], p = 0.003), or have a diagnosis of severe malnutrition (OR 2.88, 95% CI [1.26, 6.58], p = 0.01). In a subgroup analysis, patients with diabetes undergoing extraction for infectious reasons had an increased risk of in-hospital mortality (OR 4.36, 95% CI [1.54, 12.34], p = 0.005). Conclusion: Patients undergoing cardiac device extraction are high risk for in-hospital mortality. Patients experiencing in-hospital mortality were more likely to be male, have acute renal failure, anemia and severe malnutrition. Careful analysis of preoperative risk factors, laboratory data, and nutritional status can help stratify risk for patients and providers.

scholarly journals Fuel economy assessment tool for auxiliary kite propulsion of merchant ship

2018 ◽  
pp. 5-7 ◽  
Author(s):  
Vincent Podeur ◽  
Damien Merdrignac ◽  
Morgan Behrel ◽  
Kostia Roncin ◽  
Caroline Fonti ◽  
...  
Keyword(s):  
Fuel Economy ◽  
Assessment Tool ◽  
Round Trip ◽  
Merchant Ship ◽  
Added Resistance In Waves ◽  
The Mean ◽  
The Impact ◽  
Engine Power

A tool dedicated to assess fuel economy induced by kite propulsion has been developed. To produce reliable results, computations must be performed on a period over several years, for several routes and for several ships. In order to accurately represent the impact of meteorological trends variations on the exploitability of the kite towing concept, a time domain approach of the problem has been used. This tool is based on the weather database provided by the ECMWF. Two sailing strategies can be selected for assessing the performance of the kite system. For a given kite area, the simulation can be run either at constant speed or at constant engine power. A validation has been made, showing that predicted consumption is close from in-situ measurement. It shows an underestimation of 11.9% of the mean fuel consumption mainly due to auxiliary consumption and added resistance in waves that were not taken into account. To conclude, a case study is performed on a 2200 TEU container ship equipped with an 800m² kite on a transatlantic route between Halifax and Le Havre. Round trip simulations, performed over 5 years of navigation, show that the total economy predicted is of around 12% at a speed of 16 knots and around 6.5% at a speed of 19 knots.

scholarly journals Pattern analysis of S. haematobium infection and elimination in the area of Alsuki, Sudan

2021 ◽  
Vol 8 (3) ◽  
pp. 1059
Author(s):  
Rawia A. Abdelshafie ◽  
Abdalla I. Abdalla Mohamed
Keyword(s):  
Risk Factors ◽  
Statistical Analysis ◽  
Health Program ◽  
Pattern Analysis ◽  
Cross Sectional Study ◽  
P Value ◽  
Sectional Study ◽  
Cross Sectional ◽  
The People ◽  
The Impact

Background: The aim of this study was to determine the current conditions of children of the selected area, for the purpose of measuring the new effective health program for schistosomiasis disease eliminations and obtain the prevalence intensity and risk factors of S. haematobium among school children in the study area.Methods: A descriptive cross-sectional study was used to screen school going children of all the ages from five randomly selected schools from Alsuki region. A statistical analysis derived from data formulated based on 1062 samples aged between 6 and 15 years attending the selected schools during the period testing within 6 months were enrolled.Results: The impact of health awareness program was measured usefully and the responded factor for reducing the Schistosomiasis diseases was significantly became less than (0.05). Therefore, the actual qualified fitting degree and applicability was significantly becoming (p value=0.001).Conclusions: This research concluded that the prediction of Schistosomiasis diseases due to the risk Ratio of the collected data for those who did not attended awareness over the people who attended program became (0.248).

scholarly journals The relation between cardiovascular affection and erosive articular changes in patients with rheumatoid arthritis

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
M M H Hassabelnabi ◽  
N Y Assaf ◽  
H F Zidan ◽  
G M M Abushanab
Keyword(s):  
Rheumatoid Arthritis ◽  
Risk Factors ◽  
Cardiovascular Risk ◽  
Power Doppler ◽  
Premenopausal Women ◽  
Joint Disease ◽  
P Value ◽  
Physical Medicine ◽  
Bone Erosions ◽  
The Mean

Abstract Background rheumatoid arthritis is currently regarded as independent cardiovascular risk factor. Accelerated atherosclerosis considered as an extra-articular manifestation of RA that occurs as a result of interaction between traditional CV risk factors and inflammatory activity of joint disease. Both atherosclerosis and RA have in common inflammatory mediators. Objectives the presented study aimed to find the relation between cardiovascular affection and erosive articular changes in RA. Subjects and Methods The presented study included 40 patients’ men and premenopausal women that were diagnosed with rheumatoid arthritis fulfilling the 2010 ACR/EULAR classification criteria for rheumatoid arthritis recruited from the physical Medicine, Rheumatology, and Rehabilitation outpatient clinics of Ain Shams University, patients underwent laboratory investigation, carotid duplex, musculoskeletal ultrasound and echocardiography. Results Among 40 RA patients, 16 (40%) had erosions in both hands and 24 (60%) without erosion with no statistically significance difference between both sides of hand and feet, only 3 patients (7.5%) had active erosion exhibited by power Doppler. The presence of erosion positively correlated with the mean CIMT (p-value < 0.001) with mean 0.827±0.149, The presence of carotid plaques as a marker of advanced atherosclerosis showed statistically significant value with erosions (p = 0.001). There was positive relation between erosions with disease duration (p-value < 0.001), and negatively with DAS-28 (p = 0.083). Out of 33 patients with positive RF, 16 patients had erosions with statistically significant value (p = 0.017). Conclusion Since the presence of bone erosions was highly associated with higher mean CIMT, consequently, we recommend that when finding bone erosions in rheumatoid arthritis patient, good monitoring should be given to cardiovascular risk factors with early and proper treatment to limit the progression of erosions and protect against atherosclerosis and its complications.

scholarly journals Maternal risk factors and perinatal outcomes in fetal growth restriction using obstetric Doppler in South Kerala, India

2018 ◽  
Vol 8 (1) ◽  
pp. 6
Author(s):  
Heera Shenoy T. ◽  
Sonia X. James ◽  
Sheela Shenoy T.
Keyword(s):  
Risk Factors ◽  
Birth Weight ◽  
Fetal Growth ◽  
Fetal Growth Restriction ◽  
Perinatal Outcomes ◽  
Growth Restriction ◽  
P Value ◽  
Maternal Risk Factors ◽  
Maternal Risk ◽  
The Mean

Background: Fetal Growth Restriction (FGR) is the single largest contributing factor to perinatal morbidity in non-anomalous foetuses. Synonymous with Intrauterine Growth Restriction (IUGR), it is defined as an estimated fetal weight less than the10th percentile. Obstetric Doppler has helped in early detection and timely intervention in babies with FGR with significant improvements in perinatal outcomes.  Hence, authors evaluated the maternal risk factors and diagnosis-delivery intervals and perinatal outcomes in FGR using Doppler.Methods: This research conducted in a tertiary care hospital in South Kerala included 82 pregnant women who gave birth to neonates with birth weight less than the 10th percentile over a period of1 year (Jan 1, 2017-Dec 31, 2017). Socio-demographic, maternal risk, Diagnosis- delivery interval in FGR and neonatal morbidities were studied.Results: Mean GA at diagnosis in weeks was 34.29 and 35.19 respectively for abnormal and normal Doppler respectively (p value-0.032). The mean birthweight in Doppler abnormal FGR was 272.34 g lesser than in Doppler normal group (p value-0.001). Growth restricted low birth weight neonates had Doppler   pattern abnormalities (p value-0.0009). FGR <3rd percentile and AFI <5 had abnormal Doppler (OR:6.7). Abnormal biophysical profile (OR:14) and Non-Reactive NST (OR:3.5) correlated with abnormal Doppler. Growth restricted with normal Doppler had shorter NICU stays than with abnormalities (p value-0.003). Term FGR went home early than early preterm. (p value-0.001).Conclusions: Abnormal Doppler velocimetry is significantly associated with earlier FGR detection, shorter decision- delivery interval, reduction in the mean birthweight and longer NICU stay. Hence, Umbilical artery Doppler and Cerebroplacental index is an integral part of in-utero fetal surveillance to identify impending fetal hypoxia, appropriate management, optimising the timing of delivery and improve perinatal health in FGR.

scholarly journals What Is the Impact of Additional Tropical Observations on a Modern Data Assimilation System?

2019 ◽  
Vol 147 (7) ◽  
pp. 2433-2449
Author(s):  
Laura C. Slivinski ◽  
Gilbert P. Compo ◽  
Jeffrey S. Whitaker ◽  
Prashant D. Sardeshmukh ◽  
Jih-Wang A. Wang ◽  
...  
Keyword(s):  
El Niño ◽  
Large Scale ◽  
El Nino ◽  
Mean Square ◽  
Observational Network ◽  
In Situ Observations ◽  
The Mean ◽  
The Impact ◽  
Assimilation System

Abstract Given the network of satellite and aircraft observations around the globe, do additional in situ observations impact analyses within a global forecast system? Despite the dense observational network at many levels in the tropical troposphere, assimilating additional sounding observations taken in the eastern tropical Pacific Ocean during the 2016 El Niño Rapid Response (ENRR) locally improves wind, temperature, and humidity 6-h forecasts using a modern assimilation system. Fields from a 50-km reanalysis that assimilates all available observations, including those taken during the ENRR, are compared with those from an otherwise-identical reanalysis that denies all ENRR observations. These observations reveal a bias in the 200-hPa divergence of the assimilating model during a strong El Niño. While the existing observational network partially corrects this bias, the ENRR observations provide a stronger mean correction in the analysis. Significant improvements in the mean-square fit of the first-guess fields to the assimilated ENRR observations demonstrate that they are valuable within the existing network. The effects of the ENRR observations are pronounced in levels of the troposphere that are sparsely observed, particularly 500–800 hPa. Assimilating ENRR observations has mixed effects on the mean-square difference with nearby non-ENRR observations. Using a similar system but with a higher-resolution forecast model yields comparable results to the lower-resolution system. These findings imply a limited improvement in large-scale forecast variability from additional in situ observations, but significant improvements in local 6-h forecasts.

scholarly journals Presentation and healthcare delays among people with tuberculosis in London, and the impact on treatment outcome

2019 ◽  
Vol 6 (1) ◽  
pp. e000468
Author(s):  
Poppy Evenden ◽  
Anita Roche ◽  
Basel Karo ◽  
Sooria Balasegaram ◽  
Charlotte S Anderson
Keyword(s):  
Risk Factors ◽  
Treatment Outcome ◽  
P Value ◽  
Social Risk ◽  
Social Risk Factors ◽  
Asian Ethnicity ◽  
The Third ◽  
Female Sex ◽  
The Impact ◽  
Healthcare Visit

BackgroundA quarter of London’s pulmonary tuberculosis (TB) patients have over 4 months of delay. Late diagnosis increases disease severity and the risk of transmission. We aim to classify delays, identify associated risk factors and assess treatment outcome.MethodsWe conducted a retrospective cohort study using London surveillance data, 2012–2018 on adults aged ≥18 years with pulmonary TB. We defined presentation delay (days from symptom onset to first healthcare visit) and healthcare delay (first healthcare visit to treatment commencement) as dichotomous variables; positive delay being days equal or greater than the third quartile. We applied logistic regression models to identify risk factors associated with delays and treatment outcome at 12 months.ResultsOf 7216 people, 4539 reported presentation and 5193 healthcare delays. The third quartiles for presentation and healthcare delay were 84 and 61 days, respectively. Presentation delay was associated with female sex (adjusted OR (aOR)=1.21; 95% CI 1.04 to 1.39), increasing age (aOR=1.004; 95% CI 1.001 to 1.008), white compared to Asian ethnicity (aOR=1.35; 95% CI 1.12 to 1.62), previous imprisonment (aOR=1.66; 95% CI 1.22 to 2.26) and alcohol misuse (aOR=1.44; 95% CI 1.04 to 1.89). Healthcare delay was associated with female sex (aOR=1.39; 95% CI 1.21 to 1.59), increasing age (aOR=1.014; 95% CI 1.009 to 1.018) and white ethnicity (aOR=1.41; 95% CI 1.19 to 1.68). 16% of 5678 people with known outcome did not complete treatment. Neither delay was associated with non-completion (p value <0.05).ConclusionsFemale, white and older people with TB were more likely to experience both presentation and healthcare delays. Social risk factors were also associated with delay in presentation. Early diagnosis and treatment remain critical to reduce transmission, regardless of whether delay affected completion.

Clinical Complications in Adult Patients with Sickle Cell Anemia and β-Thalassemia-Sickle Cell Disease

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 4767-4767
Author(s):  
Giovanna Graziadei ◽  
Alessia Marcon ◽  
Martina Soldarini ◽  
Ilaria Gandolfi ◽  
Luisa Ronzoni ◽  
...  
Keyword(s):  
Sickle Cell Disease ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Acute Chest Syndrome ◽  
P Value ◽  
Cell Disease ◽  
Transfusion Therapy ◽  
Clinical Complications ◽  
Significant Difference ◽  
The Mean

Abstract Abstract 4767 Background. Sickle-Cell Disease (SCD) is one of the most common severe monogenic inherited disorders worldwide, due to hemoglobin S (HbS), with reduced affinity for the oxygen. HbS polymerization, leading to erythrocyte rigidity, vaso-occlusion and hemolytic anemia, is central in the pathophysiology and crucial for the clinical outcome. The term SCD refers to Sickle Cell Anemia (SCA) due to homozygosis for βS allele, HbS/β-thalassemia (T-SCD) due to compound of β-thal and βS allele, and HbSC disease, owing to the coinheritance of βS and βcalleles. SCD is a multiorgan disease characterized by recurrent acute events and progressive organ damage, worsening during the life. Aims. This is a retrospective monocentric study aimed to assess and compare the clinical complications among 59 adult SCD patients, followed at the Hereditary Anemia Centre of the Foundation IRCCS “Ca Granda” Ospedale Maggiore Policlinico, in Milan, Italy. Methods. Mutation analysis of the b globin gene was established by direct DNA sequencing on the ABI Prism 310 genetic analyzer. Clinical and hematological features were evaluated by routine tests and physical examination, with special attention to the erythropoiesis stress parameters as LDH values and extramedullary erythropoietic (EE) masses. Results. Fifty-nine adult SCD patients, 16 SCA and 43 T-SCD, were evaluated. In T-SCD patients detected b-mutations were severe (b°) in 69.8%, and moderate or mild (b+-b++) in 30.2%. The mean age of SCA patients was 36±9 and 41±11 years for T-SCD patients. For both groups the mean follow-up was 20±6 years, while the mean age at the presentation in our Centre was 32±8 years in SCA patients and 31±10 years in T-SCD ones. Five out of 16 (31.2%) SCA patients and 16/43 (37.2%) T-SCD patients were male. HbF mean levels were 6.9±5.1% and 10.1±7.2%, respectively in SCA and T-SCD group; surprisingly Hb mean levels were lower in SCA (9.3±1.3 g/dl) than in T-SCD (9.9±1.4 g/dl) patients. Comparing SCA and T-SCD, there was statistically significant difference in splenic features: splenectomy was performed in 2/16 (12.5%) SCA patients vs 21/43 (48.8%) T-SCD patients (p-value < 0.01). Splenomegaly was absent in SCA, while was detected in 11/22 (50%) T-SCD (p-value < 0.0001); all SCA patients had functional asplenia, not observed in T-SCD patients; splenic infarctions were absent in SCA patients and were detected in 7/22 (31.8%) T-SCD patients, of whom 5 had splenomegaly and 2 had normal spleen size (pvalue <0.001). On the other side, there was not statistically significant difference in the prevalence of stroke, acute chest syndrome (ACS), bone pain crisis, sepsis, leg ulcers and priapism. However, we observed some clinical differences, even if not statistically significant. Cholecistectomy was performed in 4/16 (25%) SCA patients vs 17/43 (39.5%) T-SCD patients, and gallstones were detected respectively in 5/12 (41.7%) and in 14/26 (53.8%) of SCA and T-SCD patients. Thrombotic events were absent in SCA patients, compared to 4/43 (9.3%) T-SCD patients. Furthermore, we detected EE in 3/16 (18.6%) SCA and in 3/43 (7%) T-SCD, all carrying b° thal mutations. We underlie that Hb levels and LDH values were higher in SCA than in T-SCD patients (823±295 vs 689±209 U/L). About the treatment, 14/16 (87.5%) SCA and 31/43 (72%) T-SCD underwent to top-up transfusion; 5/43 (11.6%) T-SCD were regularly transfused. Seven out of 16 (43.8%) SCA and 18/43 (41.8%) T-SCD patients were treated with Hydroxycarbamide (HU). Criteria for transfusion therapy were: painful crisis not responsive to HU, major clinical complications, such as stroke or ACS, extramedullary erythropoietic masses associated with high LDH levels and low Hb values. Conclusions. These data suggest that SCA and T-SCD patients have similar clinical course. Splenomegaly is present only in T-SCD patients, probably due to the increased amount of extravascular hemolysis. Surprisingly, SCA patients showed EE and lower Hb levels with higher LDH values compared to T-SCD ones. This could be related to the prevalence of intravascular hemolysis, that can lead to erythropoietic stress in SCA, even if tissues are better oxygenated in these patients because of biochemical characteristic of HbS in terms of decreased oxygen affinity. These observations could be important to evaluate transfusion and HU treatment. Disclosures: Cappellini: Novartis: Research Funding.

Risk factors for oral mucositis (OM) in multiple myeloma (MM) patients receiving high-dose melphalan (Mel) prior to autologous stem cell transplantation (SCT).

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e19565-e19565
Author(s):  
Bhavana Bhatnagar ◽  
Olga G. Goloubeva ◽  
Steven Gilmore ◽  
Arnold Hoffman ◽  
Kathleen Ruehle ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hospital Stay ◽  
Oral Intake ◽  
Length Of Hospital Stay ◽  
High Serum ◽  
P Value ◽  
High Dose ◽  
Grade 3 ◽  
High Dose Melphalan ◽  
The Impact

e19565 Background: OM is a common complication of high-dose melphalan in MM patients (pts). Proposed risk factors for OM in SCT include: low albumin and high serum creatinine (Cr) levels, both were evaluated in MM patients undergoing Mel/ASCT. (Grazziutti, ML, Bone Marrow Transplant 2006). Methods: This is a single center retrospective chart review of 214 sequentially treated MM pts who received Mel 200mg/m2 conditioning prior to SCT between January 2005-September 2011. Data collected included: demographics, Hgb, Cr, C-reactive protein and albumin on the day of SCT, length of hospital stay. OM assessment was graded as follows: Grade 1, no OM; Grade 2, mild OM; the pts maintained adequate oral intake; Grade 3, decreased oral intake and/or use of oral narcotics; Grade 4, severe OM needing intravenous narcotics. Results: The table below describes pt characteristics grouped by OM grade. Overall, 56 pts (27%) had grade 3/4 OM. Multivariate analysis of variance revealed no statistically significant correlation between OM grade and Hgb, Cr, albumin, CRP; the overall test’s p value = 0.55. There were no racial or gender differences with regard to grade of mucositis, the p-values range are 0.75 and 0.31, respectively (likelihood ratio chi-square test). Most interestingly, OM did not impact length of hospital stay. Conclusions: We did not establish any predictive risk factors for OM as previously described. Analysis of the impact of OM on MM response and event and overall survival will be presented. Studies of Mel pharmacogenetics may provide insight to patients' predisposition to OM. [Table: see text]

scholarly journals The Impact of fodder on Bombyx Mori

2018 ◽  
Author(s):  
Victor Flores ◽  
Katherine Medina
Keyword(s):  
Bombyx Mori ◽  
Production Performance ◽  
P Value ◽  
Demographic Profiles ◽  
Silk Production ◽  
Incubation Periods ◽  
The Mean ◽  
The Impact ◽  
Cluster 2 ◽  
Production Characteristics

AbstractSilk production by the Chilean silkworm, although an important source of revenue, has not been extensively studied. In the current study, we research 564 Mountain Silkworm (Bombyx mori), analyzing their silk harvests, silk production incubation periods and demographic profiles. The mountain silkworms were randomly divided into two clusters (cluster#1, cluster#2), each of which had 56 mountain silkworms. Crumpled maize were replaced by steam-flaked maize 30%, 50%, 100%, then researched the effects of nourishing steam-flaked maize on production performance of silk production by silkworm. The outcomes showed that the cluster#2 had better median silk harvest than cluster#1, the mean of these increment silk harvests was 3.48pounds (P-value <0.05); the protein proportion and the sugar in silk of cluster#2 went up than cluster#1; for the urine nitrogen and somatic cell count of cluster#2 were lower than cluster#1 by 0.9% (P-value >0.05), 30,800 cells/ml (P-value<0.05), respectively. The current research confirmed that utilizing the JHO nutrition heightened silk harvest, improved silk production characteristics, and enhanced the performance of mountain silkworms; furthermore, it heightened resistance to the sickness due to strengthened resistance.

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