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1.
Front Neurol ; 12: 733322, 2021.
Article in English | MEDLINE | ID: mdl-34566876

ABSTRACT

Low bone mineral density (BMD) is an emerging health issue in adults with cerebral palsy (CP). This cross-sectional study aimed to describe the characteristics of BMD in adults with CP, and to elucidate the risk factors for low BMD in this population. People aged ≥20 years and diagnosed with CP were recruited from February 2014 to November 2014. We assessed BMD using dual-energy X-ray absorptiometry (DXA) for the lumbar spine, femoral neck, and total femur. Moreover, the body composition was assessed using DXA. We included a total of 87 adults with CP (mean age 42.01 years; 52 men). The prevalence of low BMD was 25.3%. Male sex and age were associated with lower BMD. BMD was significantly lower in the non-ambulatory group than that in the ambulatory group for both lumbar spine and femoral neck. The total fat mass demonstrated a positive correlation with the Z-score and BMD for the femur neck and total femur. Body mass index (BMI) and total fat mass were positively correlated with BMD in the lumbar spine, femoral neck, and total femur. However, the Gross Motor Function Classification Scale levels were negatively correlated with BMD at the aforementioned three sites. In conclusion, adults with CP revealed decreased BMD, which was associated with male sex, age, decreased gross motor function, loss of ambulatory function, low BMI, decreased total fat mass, and decreased total fat-free mass.

3.
Sci Rep ; 11(1): 6597, 2021 03 23.
Article in English | MEDLINE | ID: mdl-33758213

ABSTRACT

This retrospective cohort study investigated the risk and mortality rate due to aspiration pneumonia in patients with Parkinson's disease (PD) using a nationwide database. We identified 10,159 newly diagnosed PD patients between 2004 and 2006, and four age- and sex-matched controls for each PD patient from the National Health Insurance Service database in Korea. We analyzed the relative risk of aspiration pneumonia and mortality after the first occurrence of aspiration pneumonia until 2017. Throughout the study period, PD patients showed a higher incidence of aspiration pneumonia than their matched controls (3.01 vs. 0.59 events per 1,000 person-years), and they were at an increased risk of aspiration pneumonia (hazard ratio = 4.21; 95% confidence interval, 3.87-4.58). After the first occurrence of aspiration pneumonia, the mortality rate of PD patients was 23.9% after one month, 65.2% after 1 year, and 91.8% after 5 years, while that of controls was 30.9%, 67.4%, and 88.9%, respectively. Patients with PD are at an increased risk of aspiration pneumonia, and approximately two-thirds of the patients die within a year after experiencing aspiration pneumonia. Further studies are warranted to prevent aspiration pneumonia and implement proper treatments to prevent death after aspiration pneumonia in patients with PD.


Subject(s)
Parkinson Disease/complications , Pneumonia, Aspiration/epidemiology , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Mortality/trends , Parkinson Disease/epidemiology , Pneumonia, Aspiration/mortality , Republic of Korea
4.
J Neurol Sci ; 415: 116949, 2020 08 15.
Article in English | MEDLINE | ID: mdl-32505011

ABSTRACT

BACKGROUND: Despite pneumonia being an emerging burden on Parkinson's disease patients, there is essentially nothing known on whether they are at an increased risk of pneumonia occurrence and their associated factors. OBJECTIVES: To determine whether Parkinson's disease is associated with the risk of pneumonia and its associated factors. METHODS: Using nationwide database that covers the whole population in South Korea from 2002 to 2017, we identified newly diagnosed Parkinson's disease patients in 2004-2006, and selected four age- and sex-matched controls for each patient from the general population. From these patients and controls, we identified pneumonia occurrence until the end of the study period, and plotted Kaplan-Meier curves and Cox proportional hazards model to determine its risk. RESULTS: We identified 10,159 Parkinson's disease patients and matched 39,574 controls. These patients showed a higher incidence rate than controls (11.21 vs. 3.61 events/1000 person-years) throughout the study period, and were at an increased risk of pneumonia (hazard ratio = 2.26; 95% CI, 2.17-2.36) even after adjusting for confounders. Old age, male sex, region of residence, diabetes mellitus, congestive heart failure, tuberculosis, atrial fibrillation, chronic kidney disease, cerebrovascular disease, dementia, chronic obstructive pulmonary disease, seizure disorder and antidiabetic drug usage were all associated with a higher risk of pneumonia, while dyslipidemia and antihypertensive medication usage lowered the risk. CONCLUSIONS: Parkinson's disease patients may be more likely to experience pneumonia compared to the general population throughout the disease course from diagnosis. Therefore, physicians should focus on the modifiable risk factors of pneumonia in such patients.


Subject(s)
Parkinson Disease , Pneumonia , Humans , Incidence , Male , Parkinson Disease/complications , Parkinson Disease/drug therapy , Parkinson Disease/epidemiology , Pneumonia/epidemiology , Republic of Korea , Risk Factors
5.
Lasers Surg Med ; 49(4): 372-379, 2017 04.
Article in English | MEDLINE | ID: mdl-27862085

ABSTRACT

BACKGROUND AND OBJECTIVE: Variable methods of animal model have been introduced to develop tracheal stenosis. However, none of the prior models allow for predictable determination of the grade of stenosis. This study sought to establish an animal model of tracheal stenosis by using a cylindrical diffuser and to evaluate the feasibility of a reproducible model. STUDY DESIGN/MATERIALS AND METHODS: A cylindrical diffuser was developed to have a 5 mm active segment to emit laser light circumferentially. Twenty one New Zealand white rabbits were enrolled in this study. The cylindrical diffuser was inserted transorally under bronchoscopic view and the diffused light was delivered to tracheal mucosa 2 cm below the level of vocal cord. Input power of irradiation was 10 W, 5 seconds in group A (n = 7), 10 W, 7 seconds in group B (n = 7), and 8 W, 5 seconds in group C (n = 7). The degree of tracheal stenosis was observed weekly and the rabbits were euthanized 4 weeks after the laser irradiation. RESULTS: The degree of stenosis in group B (90-98%) was significantly larger than that of group A (75-92%) (P = 0.004), while degree in group C (24-35%) was significantly smaller than that of group A (P < 0.001). Two rabbits of group A were euthanized at 3 weeks due to costal retraction. In group B, six rabbits died within 3 weeks after laser irradiation due to severe tracheal stenosis and tracheal malacia, while one rabbit was euthanized 16 days after the irradiation. All rabbits in group C survived up to 4 weeks. Survival between three groups showed significant difference (P = 0.001). CONCLUSION: The degree of stenosis was significantly different according to the delivered optical energy to tracheal mucosa. Therefore, the proposed model may be used in animal studies to emulate variable grades of tracheal stenosis. Lasers Surg. Med. 49:372-379, 2017. © 2016 Wiley Periodicals, Inc.


Subject(s)
Disease Models, Animal , Lasers, Gas , Trachea/pathology , Trachea/radiation effects , Tracheal Stenosis/etiology , Animals , Diffusion , Rabbits , Tracheal Stenosis/pathology
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