Oral Care Interventions and Oropharyngeal Colonization in Children Receiving Mechanical Ventilation

2009 ◽  
Vol 18 (4) ◽  
pp. 319-328 ◽  
Author(s):  
Mavilde L.G. Pedreira ◽  
Denise M. Kusahara ◽  
Werther Brunow de Carvalho ◽  
Silvia Cristina Núñez ◽  
Maria Angélica S. Peterlini
Keyword(s):  
Mechanical Ventilation ◽  
Intensive Care ◽  
Length Of Stay ◽  
Oral Care ◽  
Ventilatory Support ◽  
Critically Ill Children ◽  
Controlled Study ◽  
Control Group ◽  
A Site ◽  
Underlying Diseases

Background Recent progress in identification of oral microorganisms has shown that the oropharynx can be a site of origin for dissemination of pathogenic organisms to distant body sites, such as the lungs.Objective To compare the oropharyngeal microbiological profile, duration of mechanical ventilation, and length of stay in the intensive care unit of children receiving mechanical ventilation who had pharmacological or nonpharmacological oral care.Methods A randomized and controlled study was performed in a pediatric intensive unit in São Paulo, Brazil. A total of 56 children were randomly assigned to an experimental group (n=27, 48%) that received oral care with use of 0.12% chlorhexidine digluconate or a control group (n=29, 52%) that received oral care without an antiseptic. Oropharyngeal secretions were collected and cultured on days 0, 2, and 4, and at discharge.Results The 2 groups had similar demographic characteristics, preexisting underlying diseases, and pharmacological, nutritional, and ventilatory support. Gram-negative bacteria were the predominant pathogens: Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Enter-obacter species. The 2 groups did not differ significantly in the colonization of normal (P= .72) or pathogenic (P= .62) flora, in the duration of mechanical ventilation (P= .67), or in length of stay in the intensive care (P= .22).Conclusion Use of chlorhexidine combined with nonpharmacological oral care did not decrease the colonization profile, duration of mechanical ventilation, or length of stay in critically ill children receiving mechanical ventilation.

Mechanical Ventilation and Cytopathological Changes in the Oral Mucosa

2017 ◽  
Vol 26 (4) ◽  
pp. 297-302 ◽  
Author(s):  
Ana Carolina Machado Landgraf ◽  
Angélica Reinheimer ◽  
Júlio Cezar Merlin ◽  
Soraya de Azambuja Berti Couto ◽  
Paulo Henrique Couto Souza
Keyword(s):  
Mechanical Ventilation ◽  
Intensive Care ◽  
Oral Mucosa ◽  
Oral Care ◽  
The Other ◽  
Control Group ◽  
Oral Epithelium ◽  
Exfoliative Cytology ◽  
Intensive Care Patients ◽  
Glass Slides

BackgroundThe oral mucosa is an important defense barrier to penetration of microorganisms. Thus, changes in the oral epithelium might indicate risk for infection in intensive care patients receiving mechanical ventilation.ObjectiveTo evaluate the oral mucosa of intensive care patients who did or did not receive mechanical ventilation by using liquid-base exfoliative cytology.MethodsThe sample consisted of 3 groups: 27 patients admitted to intensive care during a 7- to 14-day period who received mechanical ventilation, 29 patients admitted during the same period who did not receive mechanical ventilation, and 27 healthy patients who had no lesions in the mouth. For all 3 groups, samples were collected from the buccal mucosa by using cytology brushes. Smears were applied to glass slides before Papanicolaou staining and were codified for blind analyses by a cytopathologist. Kruskal-Wallis and Dunn tests were used to analyze the results.ResultsPatients receiving mechanical ventilation had higher prevalence and intensity of karyomegaly, perinuclear halos, cell keratinization, deep cells, and leukocyte infiltrates than did patients in the other 2 groups (P < .05). No significant differences were observed between the control group and the group who did not receive mechanical ventilation.ConclusionsLiquid-base exfoliative cytology can be used to detect preclinical alterations in the oral mucosa. Patients treated with mechanical ventilation are vulnerable to infections, and oral care may be valuable in their prognosis.

scholarly journals The effect of thiaminepyrophosphate levels on mortality and morbidity ın patients with stress hyperglycemia

2020 ◽  
pp. 25-29
Author(s):  
Zehra VATANSEVER ◽  
Serkan ÖZSOYLU ◽  
Mustafa KENDİRCİ ◽  
Basak AKYILDIZ
Keyword(s):  
Mechanical Ventilation ◽  
Intensive Care ◽  
Blood Glucose ◽  
Length Of Stay ◽  
Critically Ill ◽  
Pediatric Intensive Care ◽  
Thiamine Pyrophosphate ◽  
Critically Ill Children ◽  
Stress Hyperglycemia ◽  
C Peptide

Background: The aim of this study is to evaluate the thiamine pyrophosphate deficiency and effects on critical illness hyperglycemia in pediatric intensive care. Materials-Methods: 126 critically ill children included to the study which applied to Erciyes University Faculty of Medicine, Department of Pediatric Intensive Care Unit (ICU). Age, sex, diagnosis and presence of malnutrition in admission to ICU; Pediatric risk of Mortality III (PRISM III) and Pediatric Logistic Organ Dysfunction (PELOD) scores; mechanical ventilation and length of stay in ICU was evaluated. Blood glucose, thiamine pyrophosphate, cortisol, insulin, C-peptide, HbA1c level, serum lactate in blood gas were analyzed at the time of application. Results: The patients grouped based on blood glucose levels, the group whose glucose level in blood is more than 150 mg/dl (n:75); PRISM and PELOD scores were high, mechanical ventilation and length of stay in intensive care were longer, thiamine pyrophosphate levels were lower (p<0.001, p=0.005, p=0.008, p<0.001, p<0.01). In case of blood glucose >150 mg/dl (n:51) and thiamine pyrophosphate <180 nmol/l is together; mortality increases 3.342-fold and the case was statistically significant (p=0.014). The group whose glucose level in blood is more than 150 mg/dl respectively, insulin, c-peptide and cortisol levels found high and the findings were statistically significant (p<0.001, p=0.005, p=0.040). Conclusion: Stress hyperglycemia is a common situation seen in critically ill patients as a cause of worse clinical outcomes. Identification of stress hyperglycemia due to thiamine deficiency is difficult but it will shed light on the treatment of critically ill children.

scholarly journals Healthcare trajectories before and after critical illness: population-based insight on diverse patients clusters

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Youenn Jouan ◽  
Leslie Grammatico-Guillon ◽  
Noémie Teixera ◽  
Claire Hassen-Khodja ◽  
Christophe Gaborit ◽  
...  
Keyword(s):  
Septic Shock ◽  
Mechanical Ventilation ◽  
Intensive Care ◽  
Critical Illness ◽  
Length Of Stay ◽  
Population Based ◽  
Hospital Length Of Stay ◽  
Healthcare Use ◽  
Icu Admission ◽  
Icu Discharge

Abstract Background The post intensive care syndrome (PICS) gathers various disabilities, associated with a substantial healthcare use. However, patients’ comorbidities and active medical conditions prior to intensive care unit (ICU) admission may partly drive healthcare use after ICU discharge. To better understand retative contribution of critical illness and PICS—compared to pre-existing comorbidities—as potential determinant of post-critical illness healthcare use, we conducted a population-based evaluation of patients’ healthcare use trajectories. Results Using discharge databases in a 2.5-million-people region in France, we retrieved, over 3 years, all adult patients admitted in ICU for septic shock or acute respiratory distress syndrome (ARDS), intubated at least 5 days and discharged alive from hospital: 882 patients were included. Median duration of mechanical ventilation was 11 days (interquartile ranges [IQR] 8;20), mean SAPS2 was 49, and median hospital length of stay was 42 days (IQR 29;64). Healthcare use (days spent in healthcare facilities) was analyzed 2 years before and 2 years after ICU admission. Prior to ICU admission, we observed, at the scale of the whole study population, a progressive increase in healthcare use. Healthcare trajectories were then explored at individual level, and patients were assembled according to their individual pre-ICU healthcare use trajectory by clusterization with the K-Means method. Interestingly, this revealed diverse trajectories, identifying patients with elevated and increasing healthcare use (n = 126), and two main groups with low (n = 476) or no (n = 251) pre-ICU healthcare use. In ICU, however, SAPS2, duration of mechanical ventilation and length of stay were not different across the groups. Analysis of post-ICU healthcare trajectories for each group revealed that patients with low or no pre-ICU healthcare (which represented 83% of the population) switched to a persistent and elevated healthcare use during the 2 years post-ICU. Conclusion For 83% of ARDS/septic shock survivors, critical illness appears to have a pivotal role in healthcare trajectories, with a switch from a low and stable healthcare use prior to ICU to a sustained higher healthcare recourse 2 years after ICU discharge. This underpins the hypothesis of long-term critical illness and PICS-related quantifiable consequences in healthcare use, measurable at a population level.

Effect of breast milk oral care in infants who underwent surgical correction of ventricular septal defect

2021 ◽  
pp. 1-4
Author(s):  
Xian-Rong Yu ◽  
Yu-Qing Lei ◽  
Jian-Feng Liu ◽  
Zeng-Chun Wang ◽  
Hua Cao ◽  
...  
Keyword(s):  
Breast Milk ◽  
Ventricular Septal Defect ◽  
Septal Defect ◽  
Oral Care ◽  
Intervention Group ◽  
Physiological Saline ◽  
Surgical Correction ◽  
Controlled Study ◽  
Care Group ◽  
Control Group

Abstract Objective: This study explored the clinical effect of employing breast milk oral care for infants who underwent surgical correction of ventricular septal defect. Methods: A prospective randomised controlled study was conducted in a provincial hospital between January, 2020 and July, 2020 in China. Patients were randomly divided into an intervention group (breast milk oral care, n = 28) and a control group (physiological saline oral care, n = 28). The intervention group was given oral nursing using breast milk for infants in the early post-operative period, and the control group was given oral nursing using physiological saline. Related clinical data were recorded and analysed. Results: There were no significant differences in age, gender, weight, operation time, cardiopulmonary bypass time, or aortic cross-clamping time between the two groups. Compared with the physiological saline oral care group, the mechanical ventilation duration, the length of ICU stay in the breast milk oral care group were significantly shorter. The time of start feeding and total enteral nutrition were significantly earlier in the intervention group than those in the control group. The incidence of post-operative pneumonia in the breast milk oral care group was 3.6%, which was significantly lower than that of the physiological saline oral care group. Conclusion: The use of breast milk for oral care in infants who underwent surgical correction of VSD can reduce the incidence of post-operative pneumonia and promote the recovery of gastrointestinal function.

scholarly journals Oral care and nosocomial pneumonia: a systematic review

2015 ◽  
Vol 13 (2) ◽  
pp. 290-296 ◽  
Author(s):  
Maria Carolina Nunes Vilela ◽  
Gustavo Zanna Ferreira ◽  
Paulo Sérgio da Silva Santos ◽  
Nathalie Pepe Medeiros de Rezende
Keyword(s):  
Systematic Review ◽  
Intensive Care ◽  
Intensive Care Units ◽  
Nosocomial Pneumonia ◽  
Oral Hygiene ◽  
Oral Care ◽  
Control Group ◽  
Level Of Evidence ◽  
Grade Of Recommendation ◽  
Minimal Bias

To perform a systematic review of the literature on the control of oral biofilms and the incidence of nosocomial pneumonia, in addition to assessing and classifying studies as to the grade of recommendation and level of evidence. The review was based on PubMed, LILACS, and Scopus databases, from January 1st, 2000 until December 31st, 2012. Studies evaluating oral hygiene care related to nosocomial infections in patients hospitalized in intensive care units were selected according to the inclusion criteria. Full published articles available in English, Spanish, or Portuguese, which approached chemical or mechanical oral hygiene techniques in preventing pneumonia, interventions performed, and their results were included. After analysis, the articles were classified according to level of evidence and grade of recommendation according to the criteria of the Oxford Centre for Evidence-Based Medicine. A total of 297 abstracts were found, 14 of which were full articles that met our criteria. Most articles included a study group with chlorhexidine users and a control group with placebo users for oral hygiene in the prevention of pneumonia. All articles were classified as B in the level of evidence, and 12 articles were classified as 2B and two articles as 2C in grade of recommendation. It was observed that the control of oral biofilm reduces the incidence of nosocomial pneumonia, but the fact that most articles had an intermediate grade of recommendation makes clear the need to conduct randomized controlled trials with minimal bias to establish future guidelines for oral hygiene in intensive care units.

Controlled Study of Decision-Making Algorithms for Kidney Replacement Therapy Initiation in Acute Kidney Injury

2021 ◽  
pp. CJN.02060221
Author(s):  
Yvelynne Kelly ◽  
Kavita Mistry ◽  
Salman Ahmed ◽  
Shimon Shaykevich ◽  
Sonali Desai ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Length Of Stay ◽  
Kidney Injury ◽  
Hospital Length ◽  
Hospital Length Of Stay ◽  
Controlled Study ◽  
Control Group ◽  
Inpatient Mortality ◽  
Icu Length Of Stay ◽  
Kidney Replacement Therapy

Background: Acute kidney injury (AKI) requiring kidney replacement therapy (KRT) is associated with high mortality and utilization. We evaluated the use of an AKI-Standardized Clinical Assessment and Management Plan (SCAMP) on patient outcomes including mortality, hospital and ICU length of stay. Methods: We conducted a 12-month controlled study in the ICUs of a large academic tertiary medical center. We alternated use of the AKI-SCAMP with use of a "sham" control form in 4-6-week blocks. The primary outcome was risk of inpatient mortality. Pre-specified secondary outcomes included 30-day mortality, 60-day mortality and hospital and ICU length of stay. Generalized estimating equations were used to estimate the impact of the AKI-SCAMP on mortality and length of stay. Results: There were 122 patients in the AKI-SCAMP group and 102 patients in the control group. There was no significant difference in inpatient mortality associated with AKI-SCAMP use (41% vs 47% control). AKI-SCAMP use was associated with significantly reduced ICU length of stay (mean 8 (95% CI 8-9) vs 12 (95% CI 10-13) days; p = <0.0001) and hospital length of stay (mean 25 (95% CI 22-29) vs 30 (95% CI 27-34) days; p = 0.02). Patients in the AKI-SCAMP group less likely to receive KRT in the context of physician-perceived treatment futility than those in the control group (2% vs 7%, p=0.003). Conclusions: Use of the AKI-SCAMP tool for AKI-KRT was not significantly associated with inpatient mortality but was associated with reduced ICU and hospital length of stay and use of KRT in cases of physician-perceived treatment futility.

Implementing Potentially Better Practices to Improve Neonatal Outcomes After Reducing Postnatal Dexamethasone Use in Infants Born Between 501 and 1250 Grams

PEDIATRICS ◽  
2003 ◽  
Vol 111 (Supplement_E1) ◽  
pp. e534-e541
Author(s):  
Joseph W. Kaempf ◽  
Betty Campbell ◽  
Ronald S. Sklar ◽  
Cindy Arduza ◽  
Robert Gallegos ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Intensive Care ◽  
Mortality Rate ◽  
Length Of Stay ◽  
Clinical Outcomes ◽  
Airway Pressure ◽  
Neonatal Intensive Care ◽  
Positive Airway Pressure ◽  
Late Onset ◽  
Late Onset Sepsis

Objective. The purpose of this article is to describe how a neonatal intensive care unit (NICU) was able to reduce substantially the use of postnatal dexamethasone in infants born between 501 and 1250 g while at the same time implementing a group of potentially petter practices (PBPs) in an attempt to decrease the incidence and severity of chronic lung disease (CLD). Methods. This study was both a retrospective chart review and an ongoing multicenter evidence-based investigation associated with the Vermont Oxford Network Neonatal Intensive Care Quality Improvement Collaborative (NIC/Q 2000). The NICU specifically made the reduction of CLD and dexamethasone use a priority and thus formulated a list of PBPs that could improve clinical outcomes across 3 time periods: era 1, standard NICU care that antedated the quality improvement project; era 2, gradual implementation of the PBPs; and era 3, full implementation of the PBPs. All infants who had a birth weight between 501 and 1250 g and were admitted to the NICU during the 3 study eras were included (era 1, n = 134; era 2, n = 73; era 3, n = 83). As part of the NIC/Q 2000 process, the NICU implemented 3 primary PBPs to improve clinical outcomes related to pulmonary disease: 1) gentle, low tidal volume resuscitation and ventilation, permissive hypercarbia, increased use of nasal continuous positive airway pressure; 2) decreased use of postnatal dexamethasone; and 3) vitamin A administration. The total dexamethasone use, the incidence of CLD, and the mortality rate were the primary outcomes of interest. Secondary outcomes included the severity of CLD, total ventilator and nasal continuous positive airway pressure days, grades 3 and 4 intracranial hemorrhage, periventricular leukomalacia, stages 3 and 4 retinopathy of prematurity, necrotizing enterocolitis, pneumothorax, length of stay, late-onset sepsis, and pneumonia. Results. The percentage of infants who received dexamethasone during their NICU admission decreased from 49% in era 1 to 22% in era 3. Of those who received dexamethasone, the median number of days of exposure dropped from 23.0 in era 1 to 6.5 in era 3. The median total NICU exposure to dexamethasone in infants who received at least 1 dose declined from 3.5 mg/kg in era 1 to 0.9 mg/kg in era 3. The overall amount of dexamethasone administered per total patient population decreased 85% from era 1 to era 3. CLD was seen in 22% of infants in era 1 and 28% in era 3, a nonsignificant increase. The severity of CLD did not significantly change across the 3 eras, neither did the mortality rate. We observed a significant reduction in the use of mechanical ventilation as well as a decline in the incidence of late-onset sepsis and pneumonia, with no other significant change in morbidities or length of stay. Conclusions. Postnatal dexamethasone use in premature infants born between 501 and 1250 g can be sharply curtailed without a significant worsening in a broad range of clinical outcomes. Although a modest, nonsignificant trend was observed toward a greater number of infants needing supplemental oxygen at 36 weeks’ postmenstrual age, the severity of CLD did not increase, the mortality rate did not rise, length of stay did not increase, and other benefits such as decreased use of mechanical ventilation and fewer episodes of nosocomial infection were documented.

scholarly journals Adaptive Support Ventilation as a Sole Mode of Mechanical Ventilation-An Observational Study

2017 ◽  
Vol 1 (1) ◽  
pp. 8-12
Author(s):  
L.K. Rajbanshi ◽  
M. Dali ◽  
S.B. Karki ◽  
K. Khanal ◽  
B. Aryal ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Mechanical Ventilation ◽  
Intensive Care ◽  
Observational Study ◽  
Ventilatory Support ◽  
Control Mode ◽  
Adaptive Support Ventilation ◽  
Support Ventilation ◽  
Adaptive Support ◽  
The Mean

Introduction Adaptive support ventilation (ASV) is a close loop dual control mechanical ventilation mode. This mode can automatically change its parameters to weaning mode once the patient is actively breathing converting volume targeted pressure control mode to volume targeted pressure support mode. We aimed to observe the outcome of the patients ventilated with ASV as a sole mode in terms of duration of mechanical ventilation, duration of weaning from the ventilatory support and length of Intensive care unit (ICU) stay.Methodology We conducted a prospective observational study for the duration of six months (Sept 2015 to Feb 2016) to assess the clinical outcome of the patients ventilated by ASV as a sole mode of ventilation. The study conducted observation of 78 patients without chronic respiratory, renal, hepatic and neurological disease who were admitted in our intensive care unit for invasive ventilatory support.Results Out of the 187 patients who required invasive and noninvasive ventilation, only 78 patients fulfilled the criteria to be included in the study. It was observed that the mean duration of mechanical ventilation was 5.4 days while weaning as well as tracheal extubation was successful within 13 hours of initiation of weaning. The mean duration of ICU stay was found to be 6.3 days.Conclusion We concluded that the patient ventilated by ASV mode were effectively weaned without the need of changing the ventilator mode. However, the safety of ASV mode needs to be established by large randomized control trail in a wide spectrum of patients.Birat Journal of Health Sciences 2016 1(1): 8-12

scholarly journals Global Muscle Strength But Not Grip Strength Predicts Mortality and Length of Stay in a General Population in a Surgical Intensive Care Unit

2012 ◽  
Vol 92 (12) ◽  
pp. 1546-1555 ◽  
Author(s):  
Jeanette J. Lee ◽  
Karen Waak ◽  
Martina Grosse-Sundrup ◽  
Feifei Xue ◽  
Jarone Lee ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Mechanical Ventilation ◽  
Intensive Care ◽  
Length Of Stay ◽  
Hospital Mortality ◽  
Grip Strength ◽  
Muscle Weakness ◽  
Manual Muscle Testing ◽  
Surgical Intensive Care Unit ◽  
Muscle Testing

Background Paresis acquired in the intensive care unit (ICU) is common in patients who are critically ill and independently predicts mortality and morbidity. Manual muscle testing (MMT) and handgrip dynamometry assessments have been used to evaluate muscle weakness in patients in a medical ICU, but similar data for patients in a surgical ICU (SICU) are limited. Objective The purpose of this study was to evaluate the predictive value of strength measured by MMT and handgrip dynamometry at ICU admission for in-hospital mortality, SICU length of stay (LOS), hospital LOS, and duration of mechanical ventilation. Design This investigation was a prospective, observational study. Methods One hundred ten patients were screened for eligibility for testing in the SICU of a large, academic medical center. The Acute Physiology and Chronic Health Evaluation (APACHE) II score, diagnoses, and laboratory data were collected. Measurements were obtained by MMT quantified with the sum (total) score on the Medical Research Council Scale and by handgrip dynamometry. Outcome data, including in-hospital mortality, SICU LOS, hospital LOS, and duration of mechanical ventilation, were collected for all participants. Results One hundred seven participants were eligible for testing; 89% were tested successfully at a median of 3 days (25th–75th percentiles=3–6 days) after admission. Sedation was the most frequent barrier to testing (70.6%). Manual muscle testing was identified as an independent predictor of mortality, SICU LOS, hospital LOS, and duration of mechanical ventilation. Grip strength was not independently associated with these outcomes. Limitations This study did not address whether muscle weakness translates to functional outcome impairment. Conclusions In contrast to handgrip strength, MMT reliably predicted in-hospital mortality, duration of mechanical ventilation, SICU LOS, and hospital LOS.

Ketamine as an Analgesic Adjuvant in Adult Trauma Intensive Care Unit Patients With Rib Fracture

2018 ◽  
Vol 52 (9) ◽  
pp. 849-854 ◽  
Author(s):  
Mary K. Walters ◽  
Joseph Farhat ◽  
James Bischoff ◽  
Mary Foss ◽  
Cory Evans
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Length Of Stay ◽  
Group Versus ◽  
Standard Of Care ◽  
Pain Scale ◽  
Rib Fracture ◽  
Hospital Length Of Stay ◽  
Control Group ◽  
Opioid Use

Background: Rib fracture associated pain is difficult to control. There are no published studies that use ketamine as a therapeutic modality to reduce the amount of opioid to control rib fracture pain. Objective: To examine the analgesic effects of adjuvant ketamine on pain scale scores in trauma intensive care unit (ICU) rib fracture. Methods: This retrospective, case-control cohort chart review evaluated ICU adult patients with a diagnosis of ≥1 rib fracture and an Injury Severity Score >15 during 2016. Patients received standard-of-care pain management with the physician’s choice analgesics with or without ketamine as a continuous, fixed, intravenous infusion at 0.1 mg/kg/h. Results: A total of 15 ketamine treatment patients were matched with 15 control standard-of-care patients. Efficacy was measured via Numeric Pain Scale (NPS)/Behavioral Pain Scale (BPS) scores, opioid use, and ICU and hospital length of stay. Safety of ketamine was measured by changes in vital signs, adverse effects, and mortality. Average NPS/BPS, severest NPS/BPS, and opioid use were lower in the ketamine group than in controls (NPS: 4.1 vs 5.8, P < 0.001; severest NPS: 7.0 vs 8.9, P = 0.004; opioid use: 2.5 vs 3.5 mg morphine equivalents/h/d, P = 0.015). No difference was found between the cohort’s length of stay or mortality. Average diastolic blood pressure was higher in the treatment group versus the control group (75.3 vs 64.6 mm Hg, P = 0.014). Conclusion: Low-dose ketamine appears to be a safe and effective adjuvant option to reduce pain and decrease opioid use in rib fracture.

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