scholarly journals To study duration of viral clearance in COVID 19 patients: A Prospective study from Bangalore, India

2021 ◽  
Vol 12 (8) ◽  
pp. 1-4
Author(s):  
Swetha Rajoli ◽  
Avinash Hanbe Rajanna ◽  
Sumesh Yadav
Keyword(s):  
Hospital Stay ◽  
Viral Clearance ◽  
Duration Of Hospital Stay ◽  
Study Duration ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Indian Setting ◽  
A Prospective Study ◽  
Group 1

Background: COVID-19 infection, which first reported as a cluster of pneumonia from Wuhan, China, in December 2019, has rapidly emerged as a global pandemic. During the early course of the pandemic. The duration of infectious virus replication is an important factor for clinicians. There is a significant correlation between the duration of SARS-CoV-2 virus clearance and the prognosis of COVID-19. Aims and Objective: To study Duration of viral clearance in COVID 19 patients, admitted in an Indian setting. Materials and Methods: The prospective single-center study considered adults patients of both the gender, diagnosed with COVID-19 infection by RT-PCR technique. Necessary demographic and clinical data were collected and selected subjects were followed-up until discharge or death. Based on the number of days required for viral clearance, the subjects were classified as: group 1: ≤ 14 days, group 2: 15-28 days, and group 3:>28 days. Results: The study included 536 patients it was found that mean duration required for viral clearance was around 8.98±3.54. Mean ages noted for group1, 2 and 3(based on viral clearance) were 37.57±13.65 years, 37.12±13.73 years and 49.50±23.56 years respectively. There was a significant difference between mean age of group 1 and 2, as well as group 1 and 3. Moreover, the distribution of patients across different age group was found to be statistically significant (P<0.05). Significant difference was noted between three groups with respect to the comorbidity status (P<0.0001). The COVID-related symptoms dyspnea and cough were more prominent in group 3 (P<0.05). TLC which is statistically significant (p<0.05), lower the TLC more the duration of viral clearance and more the duration of hospital stay. Conclusion: The mean days of viral clearance noted in COVID subjects is around 8.98±3.54 days. There was a significant difference between mean age of group 1 and 2, as well as group 1 and 3. However, there is no statistically significant correlation between duration of hospital stay and inflammatory markers except TLC which is statistically significant (p<0.05), lower the TLC more the duration of viral clearance and more the duration of hospital stay.

Independent and Interdependent Influence of Number of CD34+ Cells and Use of G-CSF on Outcomes in Autologous PBSCT Patients

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 4319-4319
Author(s):  
Meghana Trivedi ◽  
Sue Corringham ◽  
Sam Martinez ◽  
Katherine Medley ◽  
Edward D Ball
Keyword(s):  
Hospital Stay ◽  
Length Of Hospital Stay ◽  
Post Transplant ◽  
Cd34 Cells ◽  
Significant Difference ◽  
Autologous Pbsct ◽  
Group 3 ◽  
Group 2 ◽  
Neutrophil Engraftment ◽  
Group 1

Abstract Background: Recovery of neutrophilic granulocytes after autologous peripheral blood stem cell transplantation (PBSCT), and thus overall outcome, depends on 2 main factors: the quality and quantity of mobilized peripheral blood progenitor cell products (CD34+ cells) and the use of myeloid growth factors, such as granulocyte colony stimulating factor (G-CSF). Methods: We performed a 5-year (from February 2003 to January 2008) retrospective analysis of data to evaluate independent and interdependent influence of number of CD34+ cells and use of G-CSF on outcomes in autologous PBSCT patients. At the time of analysis, the practice at our institution was as follows: Autologous PBSCT patients receiving infusion of &lt; 5×106 CD34+ cells/kg were treated with daily subcutaneous injection of G-CSF (filgrastim 300 mg for &lt; 80 kg; 480 mg for ≥ 80 kg). In these patients, G-CSF was started on Day +5 and was continued until the ANC was &gt; 500/μl. On the other hand, autologous transplant patients who received ≥ 5×106 CD34+ cells/kg did not typically receive G-CSF. If engraftment did not occur after an “expected” length of time, G-CSF treatment was initiated at the discretion of the treating physician. The definition of “expected” length of time, however, varied from practitioner to practitioner. For the analysis, patients were divided in 3 groups: patients who collected &lt; 5×106 CD34+ cells/kg and received G-CSF (group 1, n=103), patients who were infused with ≥ 5×106 CD34+ cells/kg and did not receive G-CSF (group 2, n=155), and patients who received ≥ 5×106 CD34+ cells/kg and were given G-CSF (group 3, n=47). Time to neutrophil engraftment (ANC &gt;500/ml), time to platelet engraftment (platelets &gt; 20,000/ml), and post-transplant length of hospital stay were compared. Results: Median time to neutrophil engraftment was significantly shorter in patients who were treated with G-CSF (11 days) in groups 1 and 3, compared to those who were not (13 days) in group 2 (table 1). Similarly, median post-transplantation hospital stay was significantly longer in patients who did not receive G-CSF (14 days) in group 2 compared to patients who were treated with G-CSF (13 days) in groups 1 and 3. There was no significant difference in time to neutrophil engraftment and post-transplant hospital stay between groups 1 and 3, suggesting that these outcome parameters did not significantly depend on number of CD34+ cells infused in our patients if G-CSF was used. Median time to platelet engraftment was significantly longer in patients receiving &lt; 5×106 CD34+ cells/kg (12 days) in group 1 compared to patients infused with ≥ 5×106 CD34+ cells/kg (10 days) in groups 2 and 3. There was no significant difference in time to platelet engraftment between groups 2 and 3, indicating that G-CSF use did not influence platelet engraftment. Summary: These results suggest that a higher number of CD34+ cells helps accelerate platelet engraftment, but does not influence neutrophil engraftment and post-transplant length of hospital stay, as long as G-CSF treatment is instituted. The use of G-CSF accelerates neutrophil recovery, regardless of the number of CD34+ cells infused, without affecting platelet engraftment in patients undergoing autologous PBSCT. Based on this analysis, the practice at our institution has been revised to use G-CSF in all autologous transplant patients, regardless of the number of CD34+ cells, since this practice reduces the length of hospital stay. Table 1. A retrospective data analysis for patients treated at the UCSD BMT unit with autologous PBPCT from February 2003 to January 2008. The data is represented as a median value with a range indicated in parenthesis. * indicates significant difference from group 1, † indicates significant difference from group 2, and ‡ indicates significant difference from group 3 (p &lt; 0.001, Mann Whitney U test; Graph Pad Prism, version 3.02 (Graph Pad Software, San Diego, CA)). Abbreviations: ANC-absolute neutrophil count, LOS-length of hospital stay. Group 1 &lt; 5×106/kg (G) (N = 103) Group 2 ≥5×106/kg (no G) (N = 155) Group 3 ≥5×106/kg (G) (N = 47) CD34+ cells (×106/kg) 3.2 †,‡ (1.4–4.98) 6.8 * (5.0–16.7) 7.0 * (5.0–12.3) Initiation of G-CSF Day +5 N/A Day +5 (day 0–day +16) Time to ANC &gt; 500/ml (days) 11 † (9–28) 13 *,‡ (9–21) 11 † (8–17) Time to Platelet &gt; 20,000/ml (days) 12 †,‡ (6–42) 10 * (0–29) 10 * (0–27) Post-Transplant LOS (days) 13 † (10–38) 14 *,‡ (1–43) 13 † (10–18)

In-vivo evaluation of the effect of cyanoacrylate on prosthetic vascular graft infection – does cyanoacrylate increase the severity of infection?

VASA ◽  
2020 ◽  
Vol 49 (4) ◽  
pp. 281-284
Author(s):  
Atıf Yolgosteren ◽  
Gencehan Kumtepe ◽  
Melda Payaslioglu ◽  
Cuneyt Ozakin
Keyword(s):  
Vascular Graft ◽  
Graft Infection ◽  
Vascular Graft Infection ◽  
Group 4 ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Prosthetic Vascular Graft Infection ◽  
Group 1

Summary. Background: Prosthetic vascular graft infection (PVGI) is a complication with high mortality. Cyanoacrylate (CA) is an adhesive which has been used in a number of surgical procedures. In this in-vivo study, we aimed to evaluate the relationship between PVGI and CA. Materials and methods: Thirty-two rats were equally divided into four groups. Pouch was formed on back of rats until deep fascia. In group 1, vascular graft with polyethyleneterephthalate (PET) was placed into pouch. In group 2, MRSA strain with a density of 1 ml 0.5 MacFarland was injected into pouch. In group 3, 1 cm 2 vascular graft with PET piece was placed into pouch and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. In group 4, 1 cm 2 vascular graft with PET piece impregnated with N-butyl cyanoacrylate-based adhesive was placed and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. All rats were scarified in 96th hour, culture samples were taken where intervention was performed and were evaluated microbiologically. Bacteria reproducing in each group were numerically evaluated based on colony-forming unit (CFU/ml) and compared by taking their average. Results: MRSA reproduction of 0 CFU/ml in group 1, of 1410 CFU/ml in group 2, of 180 200 CFU/ml in group 3 and of 625 300 CFU/ml in group 4 was present. A statistically significant difference was present between group 1 and group 4 (p < 0.01), between group 2 and group 4 (p < 0.01), between group 3 and group 4 (p < 0.05). In terms of reproduction, no statistically significant difference was found in group 1, group 2, group 3 in themselves. Conclusions: We observed that the rate of infection increased in the cyanoacyrylate group where cyanoacrylate was used. We think that surgeon should be more careful in using CA in vascular surgery.

scholarly journals Isometric Handgrip Exercise Training Improves Spirometric Parameters and Pulmonary Capacity

2021 ◽  
Vol 28 (3) ◽  
pp. 328-338
Author(s):  
Ogbutor Udoji Godsday ◽  
Nwangwa Eze Kingsley ◽  
Nwogueze Bartholomew Chukwuebuka ◽  
Chukwuemeka Ephraim ◽  
Ezunu Emmanuel ◽  
...  
Keyword(s):  
Pulmonary Function ◽  
Isometric Exercise ◽  
Handgrip Exercise ◽  
Isometric Handgrip ◽  
Post Exercise ◽  
Significant Difference ◽  
Isometric Handgrip Exercise ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Decline in normal physiological pulmonary function has been attributed to premorbid conditions such as prehypertension. Research evidence suggests that physical activity reduces age-related decline in pulmonary function and improves the efficiency of the lungs in prehypertensive patients. However, there is a scarcity of data evidence relating to isometric exercise and pulmonary function. Furthermore, the interrelationship between the intensity and duration of isometric exercise and pulmonary function in these patients is still uncertain. Therefore, this study was undertaken to investigate the effect of isometric handgrip exercise on pulmonary function capacity in adults with prehypertension. To determine the effectiveness of isometric handgrip exercise on pulmonary function capacity in adults with prehypertension. A quasi experiment using a pre- and post-exercise method was carried out in two out-patients hospital settings. The sample comprised 192 sedentary pre-hypertensive subjects, aged between 30–50 years, that were randomly distributed into three groups of 64 participants each. The subjects performed, for 24 consecutive days, an isometric handgrip exercise at 30% Maximum Voluntary Contraction (M.V.C.). At the end of the 24 days, group one (GP1) discontinued, while group two (GP2) continued the exercise protocol for another 24 consecutive days and group three (GP3) continued with the exercise protocol for another 24 consecutive days but at 50% M.V.C. Determinants of lung function (outcomes) were Forced Expiratory Volume in 1 s (FEV1), Forced Vital Capacity (FVC), FEV1/FVC Ratio and Peak Expiratory Flow Rate (PEFR). The study shows that there was no statistically significant difference in the pre- and post-exercise outcomes for FEV1, FVC, FEV1/FVC Ratio and PEFR after 24 days for group 1. In group 2, there was a statistically significant difference in the FVC [(mean = 0.12 ± 0.12), (p = 0.002)], FEV1 [(mean = 0.15 ± 0.17), (p = 0.003)] and PEF [(mean = 0.85 ± 0.35), (p = 0.001)] after 48 days. In group 3, there was a statistically significant difference (p = 0.001) in all the outcomes assessed after 48 days. There was a between groups difference in favour of group 2 compared with group 1 for outcomes of FEV1 [(mean = 0.142 ± 0.68), (p = 0.005)] and PEF [(mean = 0.83 ± 0.19), (p = 0.0031)]. There was statistically significant difference in favour of group 3 compared to group 2, by increasing the exercise intensity from 30% to 50% M.V.C., for outcomes of FVC [mean change = 0.10 ± 0.052), (p = 0.005)], FEV1/FVC [mean change = 3.18 ± 0.75), (p = 0.017)] and PEF [(mean change = 0.86 ± 0.35), (p = 0.001)] after 48 days. Isometric handgrip exercise (after 48 days at 30% to 50% M.V.C.) improves outcomes of pulmonary function capacity in adults with prehypertension. Meanwhile, duration and/or increase in intensity of the isometric effort significantly contributed to the affects attained.

scholarly journals Effects of posterior tibial slope on the mid-term results of medial unicompartmental knee arthroplasty

Arthroplasty ◽  
2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Zhijie Chen ◽  
Kaizhe Chen ◽  
Yufei Yan ◽  
Jianmin Feng ◽  
Yi Wang ◽  
...  
Keyword(s):  
Knee Flexion ◽  
Tibial Slope ◽  
Posterior Tibial ◽  
Significant Difference ◽  
Medial Unicompartmental Knee Arthroplasty ◽  
Group 3 ◽  
Group 2 ◽  
Postoperative Knee ◽  
Group 1

Abstract Objective To evaluate the effect of medial posterior tibial slope (PTS) on mid-term postoperative range of motion (ROM) and functional improvement of the knee after medial unicompartmental knee arthroplasty (UKA). Methods Medical records of 113 patients who had undergone 124 medial UKAs between April 2009 through April 2014 were reviewed retrospectively. The mean follow-up lasted 7.6 years (range, 6.2–11.2 years). Collected were demographic data, including gender, age, height, weight of the patients. Anteroposterior (AP) and lateral knee radiographs of the operated knees were available in all patients. The knee function was evaluated during office follow-up or hospital stay. Meanwhile, postoperative PTS, ROM, maximal knee flexion and Hospital for Special Surgery (HSS) knee score (pre−/postoperative) of the operated side were measured and assessed. According to the size of the PTS, patients were divided into 3 groups: group 1 (<4°), group 2 (4° ~ 7°) and group 3 (>7°). The association between PTS and the knee function was investigated. Results In our cohort, the average PTS was 2.7° ± 0.6° in group 1, 5.6° ± 0.9° in group 2 and 8.7° ± 1.2° in group 3. Pairwise comparisons showed significant differences among them (p < 0.01). The average maximal flexion range of postoperative knees in each group was 112.4° ± 5.6°, 116.4° ± 7.2°, and 117.5° ± 6.1°, respectively, with significant difference found between group 1 and group 2 (p < 0.05), and between group 1 and group 3 (p < 0.05). However, the gender, age, and body mass index (BMI) did not differ between three groups and there was no significant difference between groups in terms of pre−/postoperative HSS scores or postoperative knee ROM. Conclusion A mid-term follow-up showed that an appropriate PTS (4° ~ 7°) can help improve the postoperative flexion of knee. On the other hand, too small a PTS could lead to limited postoperative knee flexion. Therefore, the PTS less than 4° should be avoided during medial UKA.

The Relationship between Serum Ferritin Levels and 5-Year All-Cause Mortality in Hemodialysis Patients

2021 ◽  
pp. 1-7
Author(s):  
Emre Erdem ◽  
Ahmet Karatas ◽  
Tevfik Ecder
Keyword(s):  
Serum Ferritin ◽  
Hemodialysis Patients ◽  
Rank Test ◽  
Significant Difference ◽  
All Cause Mortality ◽  
Group 3 ◽  
Group 2 ◽  
The Relationship ◽  
Group 1

<b><i>Introduction:</i></b> The effect of high serum ferritin levels on long-term mortality in hemodialysis patients is unknown. The relationship between serum ferritin levels and 5-year all-cause mortality in hemodialysis patients was investigated in this study. <b><i>Methods:</i></b> A total of 173 prevalent hemodialysis patients were included in this study. The patients were followed for up to 5 years and divided into 3 groups according to time-averaged serum ferritin levels (group 1: serum ferritin &#x3c;800 ng/mL, group 2: serum ferritin 800–1,500 ng/mL, and group 3: serum ferritin &#x3e;1,500 ng/mL). Along with the serum ferritin levels, other clinical and laboratory variables that may affect mortality were also included in the Cox proportional-hazards regression analysis. <b><i>Results:</i></b> Eighty-one (47%) patients died during the 5-year follow-up period. The median follow-up time was 38 (17.5–60) months. The 5-year survival rates of groups 1, 2, and 3 were 44, 64, and 27%, respectively. In group 3, the survival was lower than in groups 1 and 2 (log-rank test, <i>p</i> = 0.002). In group 1, the mortality was significantly lower than in group 3 (HR [95% CI]: 0.16 [0.05–0.49]; <i>p</i> = 0.001). In group 2, the mortality was also lower than in group 3 (HR [95% CI]: 0.32 [0.12–0.88]; <i>p</i> = 0.026). No significant difference in mortality between groups 1 and 2 was found (HR [95% CI]: 0.49 [0.23–1.04]; <i>p</i> = 0.063). <b><i>Conclusion:</i></b> Time-averaged serum ferritin levels &#x3e;1,500 ng/mL in hemodialysis patients are associated with an increased 5-year all-cause mortality risk.

scholarly journals Different lead locations guided by fluoroscopy and ECG parameters and their effect on patients functional status

2019 ◽  
Vol 71 (1) ◽  
Author(s):  
Mohamed MesbahTahaHassanin ◽  
Ahmad ShafieAmmar ◽  
Radwa M. Abdullah ◽  
Mohammad Hassan Khedr
Keyword(s):  
Functional Capacity ◽  
Systolic Function ◽  
Left Ventricular ◽  
Left Ventricular Dyssynchrony ◽  
Qrs Complex ◽  
Significant Difference ◽  
Septal Pacing ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Abstract Background Right ventricular apical pacing with the resultant left ventricular dyssynchrony often leads to depressed systolic function and heart failure. This study aimed at investigating the relation between various septal locations guided by ECG and fluoroscopy and the intermediate term functional capacity of the patients. Results Fifty patients who received a single lead pacemaker with assumed > 90% pacemaker dependency. Patients were randomized according to RV pacing site RV into group 1 “high septum” (n = 15), group 2 “mid septum” (n = 25), and group 3 “low septum” (n = 10) using QRS vector and duration as well as fluoroscopic parameters. Their clinical status was assessed 6 months after device implementation using 6-min walk test (6MWT). The study showed that paced QRS complex duration itself has no significant difference between the different septal pacing locations (P-value 0.675), although its combination with the paced QRS complex vector can signify the optimal pacing site and 6MWT showed a significant difference among the groups in favor of group 1; group 1 (413.3 ± 148.5), group 2 (359.8 ± 124.6), and group 3 (276.0 ± 98.5) P value 0.04. Conclusion There was a significant difference found between the three septal pacing sites concerning the patient functional capacity with superiority of high septal location. By contrast, different septal sites showed no significant difference of the paced QRS complex duration. To optimize the pacing site in the septum, assessment of the paced QRS vector in leads I and III is of a great benefit especially when combined with paced QRS complex duration assessment.

scholarly journals Efficacy of Probiotic Saccharomyces boulardii as an Adjuvant Therapy in Acute Childhood Diarrhoea

2017 ◽  
Vol 36 (3) ◽  
pp. 250-255 ◽  
Author(s):  
Dillip Kumar Dash ◽  
Mrutunjaya Dash ◽  
M.D. Mohanty ◽  
Naresh Acharya
Keyword(s):  
Hospital Stay ◽  
Tertiary Care ◽  
Acute Diarrhoea ◽  
Oral Rehydration Therapy ◽  
Saccharomyces Boulardii ◽  
Care Hospital ◽  
Oral Rehydration ◽  
Group 2 ◽  
A Prospective Study ◽  
Group 1

Introduction: Administration of S. boulardii in addition to rehydration therapy in diarrhea found to be beneficial in many aspects owing to a variety of causes and importantly it is was not associated with any adverse effects.Material and Methods: We conducted a prospective study of children suffering from acute diarrhoea, at a private tertiary care hospital. Children were divided into 2 groups randomly as per odd(Group 1 ) and even (Group 2) bed allotted in indoor at the time of admission: Group 1 included children on oral rehydration therapy (ORT) + Zinc + Saccharomyces boulardii (Probiotic 5 billion CFU twice daily) and Group 2 comprised of children on ORT+ Zinc. Our objective was to systematically review data on the effect of S. boulardii on acute childhood diarrhoea.Results: Out of a total of 126 children less than 2 years, 2-6 years and 6-14 years were 72 (57.14%), 42(33.33%) and 12(09.52%) respectively. The duration of diarrhoea in Group 1 was 26.31 hours and Group 2 was 47.81 hours (p<0.01). The frequency of diarrhoea showed improvement within 24 and 72 hours in Group 1 and Group 2 respectively (p<0.01).Similarly, the mean duration of hospital stay was 2.68 days in Group 1 and 4.8 days in Group 2.The treatment cost was INR 850 and INR 1650 while social cost was INR 1250 and 2600 in Group 1 and 2 respectively.Conclusion:This study shows that S. boulardii reduced the duration, frequency and hospital stay of diarrhoea thereby reducing the treatment and social costs.J Nepal Paediatr Soc 2016;36(3):250-255

scholarly journals Fracture resistance of immature teeth filled with mineral trioxide aggregate, bioaggregate, and biodentine

2016 ◽  
Vol 10 (02) ◽  
pp. 220-224 ◽  
Author(s):  
Emre Bayram ◽  
Huda Melike Bayram
Keyword(s):  
Fracture Resistance ◽  
Mineral Trioxide Aggregate ◽  
Mean Values ◽  
Root Canals ◽  
Immature Teeth ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Post Hoc ◽  
Group 1

ABSTRACT Objective: The purpose of this study was to evaluate fracture resistance of teeth with immature apices treated with coronal placement of mineral trioxide aggregate (MTA), bioaggregate (BA), and Biodentine. Materials and Methods: Forty-one freshly extracted, single-rooted human premolar teeth were used for the study. At first, the root length was standardized to 9 mm. The crown-down technique was used for the preparation of the root canals using the rotary ProTaper system (Dentsply Maillefer, Ballaigues, Switzerland) of F3 (30). Peeso reamer no. 6 was stepped out from the apex to simulate an incompletely formed root. The prepared roots were randomly assigned to one control (n = 5) and three experimental (n = 12) groups, as described below. Group 1: White MTA (Angelus, Londrina, Brazil) was prepared as per the manufacturer's instructions and compacted into the root canal using MAP system (Dentsply Maillefer, Ballaigues, Switzerland) and condensed by pluggers (Angelus, Londrina, Brazil). Group 2: The canals were filled with DiaRoot-BA (DiaDent Group International, Canada). Group 3: Biodentine (Septodont, Saint Maur des Fosses, France) solution was mixed with the capsule powder and condensed using pluggers. Instron was used to determine the maximum horizontal load to fracture the tooth, placing the tip 3 mm incisal to the cementoenamel junction. Mean values of the fracture strength were compared by ANOVA followed by a post hoc test. P < 0.05 was considered statistically significant. Results: No significant difference was observed among the MTA, BA, and biodentine experimental groups. Conclusion: All the three materials tested, may be used as effective strengthening agents for immature teeth.

scholarly journals Filling of extraction sockets with autogenous bone in cats

2012 ◽  
Vol 27 (1) ◽  
pp. 82-87 ◽  
Author(s):  
Adelina Maria da Silva ◽  
Wilson Machado de Souza ◽  
Nair Trevizan Machado de Souza ◽  
Marion Burkhardt de Koivisto ◽  
Patrícia de Athayde Barnabé ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Iliac Crest ◽  
Autogenous Bone ◽  
Canine Tooth ◽  
Extraction Socket ◽  
Significant Difference ◽  
Group 3 ◽  
Mandibular Canine ◽  
Group 2 ◽  
Group 1

PURPOSE: To evaluate bone healing in the extraction socket of the feline mandibular canine tooth after grafting. METHODS: Eighteen adult cats were submitted to unilateral extraction of mandibular canine tooth and divided into three groups. In group 1 (n=6), control, the extraction socket was left empty. In group 2 (n=6), the extraction socket was filled with autogenous cancelous bone from the iliac crest and in group 3 (n=6), with cortical bone chips from the iliac crest. Cats were euthanized at 6 weeks postoperative. RESULTS: Immediate postoperative radiographs in dorsoventral view showed a radiolucent area at the extraction wound. A decreased radiolucency was observed on the radiographs taken at 6 weeks postoperative. Histological examination showed formation of woven bone within the extraction socket. The percentage of newly formed bone within the extraction socket, measured by the histometry, showed no statistically significant difference among the values of the three groups (Kruskal-Wallis'test p>0.05) (group 1: 52.54 ± 15.46, group 2: 50.51 ± 5.01, group 3: 51.85 ± 9.52). CONCLUSION: The bone regeneration observed in the extraction sockets filled with autogenous cancellous bone or autogenous cortical bone chips was similar to that observed in the control sites, given an observation period of 6 weeks after extraction of the mandibular canine tooth.

scholarly journals Comparison of Changes in Number of Hyperreflective Dots After İntravitreal Ranibizumab or Dexamethasone İmplant in Patients with Branch Retinal Vein Occlusion

2021 ◽  
Author(s):  
Aylin Karalezli ◽  
Sema Kaderli ◽  
Ahmet Kaderli ◽  
Cansu Kaya ◽  
Sabahattin Sul
Keyword(s):  
First Year ◽  
Intravitreal Ranibizumab ◽  
Retinal Layers ◽  
Vein Occlusion ◽  
Significant Difference ◽  
Group 3 ◽  
The Mean ◽  
Group 2 ◽  
Group 1

Abstract Purpose: To compare the effect of intravitreal ranibizumab (IVR) or intravitreal dexamethasone implants (IVD) on regression of hyperreflective dots (HRDs) on optical coherence tomography (OCT) B-scan in patients with branch retinal vein occlusion (BRVO). Methods: 37 eyes of 37 patients with cystoid macular edema who received IVR or IVD and followed up for at least 12 months were included in this study. The patients were divided into three groups according to intravitreal treatment. Group 1 consisted of 12 eyes who received only IVD, group 2 consisted of 10 eyes who received only IVR on a pro re nata and group 3 consisted of 15 eyes who received both IVD and IVR. OCT parameters (CMT, number of HRDs, status of external limiting membrane (ELM) and ellipsoid zone (EZ)) and best-corrected visual acuity (BCVA) were compared between the groups over the follow-up time. HRDs were categorized as HRD in inner retinal layers (from the internal limiting membrane to the inner nuclear layer) or HRD in outer retinal layers (from the outer plexiform layer to the outer border of the photoreceptor layer).Results: There was no significant difference between groups in terms of BCVA, CMT, HRDs in the inner and the outer retinal layers at baseline visit. (p˃0.05 for all) Comparing the baseline values in all groups, a significant decrease was observed in CMT in the first year. (For group 1; p=0.013, group 2; p=0.010; group 3, p<0.001) The BCVA was significantly increased after 1 year in all groups. (p=0.001, p=0.006, p<0.001) The mean number of HRDs in inner and outer retinal layers were significantly decreased in group 1 and group 3. (For group 1; p<0.001, p=0.001, for group 3; p<0.001, p<0.001) However, there was no significant difference in terms of the mean number of HRDs in inner and outer retinal layers for group 2. (p=0.134, p=0.477) At the first year, the number of HRDs in inner and outer retinal layers was significantly lower in group 1 and group 3 than group 2. (For inner HRDs; group 1 vs. group 2 p=0.007, group 2 vs. group 3 p<0.001. For outer HRDs group 1 vs. group 2 p<0.001, group 2 vs. group 3 p<0.001.) The BCVA was higher in group 3 than group 2 at 1year. (p=0.048). There was no significant difference in terms of post-treatment CMT and the number of HRDs between group 1 and group3 in posthoc tests (p=0.621, p=0.876, and p=0.632).Conclusion: The reduction in HRDs at 12 months and better BCVA after IVD intimates that the HRDs should be considered as inflammatory markers in the follow-up of CME in BRVO. Thus, IVD injection could be more appropriate for patients with higher HRDs after BRVO.

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