scholarly journals Comparison of power-free-chop and phaco-chop techniques for moderate nuclei

2020 ◽  
Author(s):  
Lin Yao ◽  
Haiqing Bai

Abstract Background: To compare the intraoperative and postoperative effects of power-free-chop and phaco-chop techniques for moderate nuclei in phacoemulsification surgery. Methods: Sixty patients were evaluated in 2 groups prospectively. The power-free-chop technique was performed in Group 1 (30 eyes), and the phaco-chop technique was performed in Group 2 (30 eyes). There were no significant differences between these 2 groups. The cumulative dissipated energy (CDE), time to achieve maximum vision, corneal thickness variation, and time to return to the preoperative values were collected. All parameters were statistically compared in these 2 groups by using the chi-square test and the independent-sample t -test. Results: The CDE was 5.53±1.92 J in Group 1 and 7.02±1.77 J in Group 2. After the operation, the mean time to recover to the maximum vision was 2.80±1.42 days in Group 1 and 3.80±1.92 days in Group 2. The mean postoperative corneal thickness increased 36.9±14.74 μm in Group 1 and 46.20±20.67 μm in Group 2. The mean time to return to preoperative pachymetry values was 3.73±1.70 days and 4.83±2.11 days in Group 1 and Group 2, respectively. There were significant differences in these parameters between the groups. Conclusions: The power-free-chop technique had fewer negative effects on the corneal endothelium, as less ultrasound power was used for moderate nucleus cases. This can accelerate the functional healing process and the return to preoperative physiologic values.

2020 ◽  
Author(s):  
Haiqing Bai ◽  
Lin Yao

Abstract Background: To compare intraoperative and postoperative effects of power-free-chop and phaco-chop techniques for moderate nucleus in phacoemulsification sugery. Methods: Sixty patients were evaluated in 2 groups prospectively. The power-free-chop technique was performed in Group 1 (30 eyes) and the phaco-chop technique in Group 2 (30 eyes). There were no significant differerces between these 2 groups. The cumulative dissipated energy (CDE), time to achieve maximum vision, corneal thickness variation, and time to return to the preoperative values were collected. All parameters were statistically compared in these 2 groups by using the chi-square test and the independent-sample t test. Results: The CDE was 5.53±1.92J in Group 1 and 7.02±1.77J in Group 2. After the operation, the mean time to recover to the maximum vision was 2.80±1.42 days in Group 1 and 3.80±1.92 days in Group 2 respectively. The mean postoperative corneal thickness increased 36.9±14.74μm in Group1 and 46.20±20.67μm in Group 2. And the mean time to return to preoperative pachymetry values were 3.73±1.70 days and 4.83±2.11 days, in Group 1 and Group 2 respectively. There were significant differences in these parameters between both groups. Conclusions: The power-free-chop technique had fewer negative effects on the corneal endothelium as less ultrasound power was used for moderate nucleus cases. This can accelerate the functional healing process and the return to preoperative physiologic values.


Author(s):  
Kiran Gangadhar S. ◽  
Sonee Thingujam ◽  
Jayita Poduval

<p class="abstract"><strong>Background:</strong> Adenoidectomy is one of the most frequently applied surgical procedures in the paediatric population, either alone or in conjunction with tonsillectomy and/or insertion of ventilation tubes. The main purpose of the adenoidectomy is to eliminate the nasopharyngeal respiratory pathogens and to remove nasal airway obstruction. Aim of the study was to compare the outcomes of conventional and endoscopic assisted curettage adenoidectomy.</p><p class="abstract"><strong>Methods:</strong> In this comparative study, 50 patients were divided into 2 groups. Group 1 (25 patients) underwent endoscopic curettage adenoidectomy and group 2 (25 patients) underwent conventional curettage adenoidectomy. Intraoperative time, complications and postoperative pain were recorded.  </p><p class="abstract"><strong>Results:</strong> 72% in group 1 and 64% in group 2 had grade 2 adenoid hypertrophy. 68% in group 1 and 64% in group 2 had a moderate degree of obstruction in lateral view of soft tissue X-ray nasopharynx. The mean time taken for surgery in group 1 was 13.29±3.28 minutes, and in group 2,6.28±2.31 minutes. Minimal loss of blood was recorded in group 1 with less than 20 ml, whereas in group 2, the blood loss was high; 30% of patients had blood loss more than 30 ml. In group 1, the mean VAS was 3.25 and 2.55 in group 2 2.55. In group 1, 4% of patients had primary haemorrhage and in group 2, 8% of patients had primary haemorrhage. No patient had velopharyngeal dysfunction in either group.</p><p class="abstract"><strong>Conclusions:</strong> More operative time but less blood loss were noted in endoscopic adenoidectomy. Intraoperative visualisation of the nasopharynx in endoscopic procedures showed no significant advantage over conventional adenoidectomy.</p>


2021 ◽  
pp. 001857872110375
Author(s):  
Frank A. Fanizza ◽  
Jennifer Loucks ◽  
Angelica Berni ◽  
Meera Shah ◽  
Dennis Grauer ◽  
...  

Background: Modern hepatitis C virus (HCV) treatment regimens yield cure rates greater than 90%. However, obtaining approval for treatment through the prior authorization (PA) process can be time consuming and require extensive documentation. Lack of experience with this complex process can delay HCV medication approval, ultimately increasing the amount of time before patients start treatment and in some cases, prevent treatment altogether. Objectives: Assess the impact of incorporating clinical pharmacists into specialty pharmacy and hepatology clinic services on medication access, patient adherence, and outcomes in patients being treated for HCV. Methods: We performed a retrospective cohort exploratory study of patients seen in an academic medical center hepatology clinic who had HCV prescriptions filled between 8/1/15 and 7/31/17. Patients were categorized by whether they filled prescriptions prior to (Pre-Group) or after (Post-Group) the implementation of a pharmacist in clinic. The Post-Group was further divided according to whether the patient was seen by a pharmacist in clinic (Post-Group 2) or if the patient was not seen by the pharmacist, but had their HCV therapy evaluated by the pharmacist before seeking insurance approval (Post-Group 1). Results: The mean time from the prescription being ordered to being dispensed was longer in the Pre-Group (50.8 ± 66.5 days) compared to both Post-Groups (22.2 ± 27.8 days in Post-Group 1 vs 18.9 ± 17.7 days in Post-Group 2; P < .05). The mean time from when the prescription was ordered to when the PA was submitted was longer in the Pre-Group (41.6 ± 71.9 days) compared to both Post-Groups (6.3 ± 16 in Post-Group 1 vs 4.1 ± 9.7 in Post-Group 2; P < .05). Rates of medication adherence and sustained virologic response were similar between all groups. Conclusion: Incorporation of clinical pharmacists into a hepatology clinic significantly reduced the time patients waited to start HCV treatment. In addition to improving access to medications, implementation of the model helped to maintain excellent medication adherence and cure rates.


2015 ◽  
Vol 100 (5) ◽  
pp. 827-835 ◽  
Author(s):  
Mehmet Aziret ◽  
Oktay İrkörücü ◽  
Cihan Gökler ◽  
Enver Reyhan ◽  
Süleyman Çetinkünar ◽  
...  

As part of the vascular access procedures, venous ports, commonly referred to as catheters, are placed under the skin to enable safe and easy vascular access for administration of repeated drug treatments. 122 patients who had received a venous port catheter insertion procedure in the general surgery department between January 1012 and January 2014 were involved in this study. Patients were divided into two groups: those who had undergone a fluoroscopy (group 1) and those who had not undergone a fluoroscopy (group 2). Complications that emerged during and after the port catheter insertion procedure and successful insertion rates were recorded in the database. Data of these patients were presented in a prospective manner. There were 92 to 30 patients in groups 1 and 2, respectively. In group 1, the mean age was approximately 56.8, total catheter stay time was 20,631 days, and mean time of port use was 224.2 days. In group 2, the mean age was approximately 61.2, total catheter stay time was 13,575 days, and mean time of port use was 452.5 days. Successful insertion rate was 100% and 90% in groups 1 and 2, respectively (P &lt; 0.05). The proper insertion of the port catheter accompanied by monitoring methods can decrease procedure-related complications. Statistical comparisons between the two groups in terms of malposition and successful insertion rates also support this view (P &lt; 0.05). The findings support the view that in cancer patients, a venous port catheter insertion accompanied by a fluoroscopy can be safely performed by general surgeons.


2019 ◽  
Vol 13 (1) ◽  
pp. 8-14 ◽  
Author(s):  
Khalid Al Zubi ◽  
Yaser Albakar ◽  
Rana Nasser

Background: The progression of keratoconus is stabilized with the help of corneal collagen cross-linking (CXL) supported through photosynthesized riboflavin. Objective: This study aims to compare the effectiveness of the transepithelial procedure and epithelium off procedure of corneal collagen crosslinking among keratoconus patients in Jordan. Methods: The study recruited 80 patients suffering from progressive keratoconus, from a tertiary care setting in Jordan. These participants were randomly divided into two groups; group 1 with 40 participants subjected to transepithelial (Corneal collagen cross-linking) CXL; and 40 participants in group 2 received conventional epithelium off CXL. Results: Improvement was observed in the mean contact lens, which corrected distance visual acuity (CDVA) from logMAR 0.332 ± 0.09 (group 1), 0.35 ± 0.09 (group 2) to 0.241 ± 0.07 (group 1), 0.21 ± 0.07 (group 2), respectively at the end of follow-up (12 months). The mean pachymetry improved from 429.81 ± 18.96 μm (group 1), 430.08 ± 17.05 μm (group 2) to 436.5 ± 15.49 μm (group 1), 436.44 ± 12.53 μm (group 2), respectively, after twelve months. Additionally, the mean Sim K astigmatism declined from 7.0 ± 2.0 (group 1), 6.73 ± 1.98 (group 2) to 5.97 ± 1.88 (group 1), 5.53 ± 0.08 (group 2) respectively at twelve months post-treatment. Majority of the patients in group 2 experienced more pain as compared to group 1 participants. Conclusion: The effectiveness of a cross-linking procedure related to keratometry readings and corneal thickness showed that conventional (epithelium off) CXL method is more effective than transepithelial CXL.


2021 ◽  
Author(s):  
öznur işcan ◽  
Banu Torun Acar ◽  
Burcu Nurozler Tarakcı

Abstract Purpose: To compare the safety and performance of two ophthalmic viscosurgical devices (OVDs) Bio-Hyalur SV (Sodium Hyaluronate 3.0%) (Biotech Healthcare Group, Luzern, Switzerland) and Protectalon (sodium hyaluronate 2.0%) (VSY Biotechnology, Turkey) in cataract surgery. Methods: One hundred twenty eyes of one hundred twenty patients who underwent phacoemulsification surgery were included in the study. Postoperatively sixty eyes using Bio-Hyalur-SV were classified as Group 1, and sixty eyes using Protectalon as Group 2. Patients aged 45 and over, Grade I, II or III unilateral / double stained cataract, healthy eyes creating cataract inclueded in this study . Endothelial cell morphological parameters including endothelial cell density (ECD), cell number, cell area, coefficient of variation (CV) in cell size, cell hexagonality and central corneal thickness (CCT) were measured preoperatively and at postoperative first week, first and third month visits.Intraocular pressure (IOP) was measured with an applanation tonometer at every visit. Results: . There was a statistically significant decrease in the mean ECD all follow-up times when compared with the preoperative visit (p=0.000). In terms of mean ECD levels there was no significant difference between the two groups within three months postoperatively (p=0.616) In the first week after surgery, there was an significant increase in CCT in Group 1 and Group 2 respectively (p=0.000). The IOP was <23 mmHg in all of the patients on the first day after surgery. There was no significant difference in the incidence of IOP peaks between the two groups in every vizits. In both groups, a significant increase was observed in the mean IOP at first day, first week, and first month after surgery compared to preoperative values (p=0.000). But no significant difference in IOP increase in Group 1 (P=0.092), Group 2 (P=0.013) compared to preoperative values ​​at third month postoperatively (p <0.001 significant with Bonferrotti correction). Conclusion: The two OVD’s used in this study during cataract surgery were safe and effective. Both OVD’s resulted in similar rates of transient IOP increases and corneal endothelial damage also provided good anterior chamber depth and were fairly easy to remove.


2015 ◽  
Vol 2015 ◽  
pp. 1-4
Author(s):  
Emrullah Beyazyıldız ◽  
Özlem Beyazyıldız ◽  
Süleyman Günaydın ◽  
Emrah Kan ◽  
Mert Şimşek ◽  
...  

Purpose. To evaluate optical low coherence reflectometry (OLCR) parameters in patients with exfoliation syndrome (EXS) undergoing cataract surgery.Methods. Forty-seven eyes of 47 patients with EXS (Group 1), and 55 eyes of 55 healthy subjects (Group 2) were included in the study. Anterior chamber depth (ACD), lens thickness (LT), axial length (AL), central corneal thickness (CCT), horizontal corneal length (HCL), and pupil diameter (PD) parameters were measured by OLCR (Lenstar LS 900, Haag-Streit) and compared between groups. Shapiro-Wilk test and Mann WhitneyUtests were used for statistical analyses.Results. The mean ACD, HCL, and PD values were significantly lower in EXS group than in healthy subjects (P= 0.01,P= 0.04, andP<0.001, resp.). The mean LT was significantly higher in EXS group than in healthy subjects (P= 0.007). There was no significant difference between groups in means of AXL and CCT.Conclusions. According to OLCR measures, eyes with EXS have shallower ACD, smaller PD, thicker LT, shorter HCL, and no significantly different CCT levels.


2016 ◽  
Vol 26 (8) ◽  
pp. 1440-1447 ◽  
Author(s):  
Kassondra S. Grzankowski ◽  
J. Brian Szender ◽  
Chandra L. Spring-Robinson ◽  
Shashikant B. Lele ◽  
Kunle O. Odunsi ◽  
...  

BackgroundThe time interval between diagnoses of breast cancer (BC) and endometrial cancer (EC) is not well established in women with metachronous primary tumors. We sought to examine this interval and identify associations with treatment-related and clinicopathologic factors.MethodsWe identified 141 patients who developed both cancers during 1966 to 2013. Patients were divided into 2 groups: group 1, BC first, and group 2, EC first. Subanalysis performed of group 1 (59 patients) stratified around adjuvant tamoxifen use: pre-1990 BC diagnosis and post.ResultsFifty-nine and 82 patients were in groups 1 and 2, respectively. The mean time interval was comparable (76 vs 74 months,P= 0.861). Subanalysis divided group 1 into pre- (n = 27) and post- (n = 32) 1990 and resulted in different mean time intervals between diagnosis of metachronous cancers (106 vs 50 months, respectively [P= 0.042]). Median progression-free survival (PFS) and overall survival (OS) for EC were longer in the pre group (PFS, 51 vs 26 months [P= 0.169]; OS, 59 vs 27 months [P= 0.190]). Median PFS and OS for BC were also longer in this group (PFS, 147 vs 109 months [P= 0.005]; OS, 166 vs 114 months [P< 0.001]).ConclusionsOur data indicate the mean time interval between the diagnosis of EC and BC was approximately 6 years. Disease-specific EC survival was worse for patients with a previous diagnosis of BC. Stratification around implementation of tamoxifen use shows comparable grade and stage but different time interval and survival, suggesting resulting effects from adjuvant therapy for BC. These results are useful in counseling women at risk.


2021 ◽  
Vol 62 (3) ◽  
Author(s):  
Bui Dang Phuong Chi ◽  
Bui Dang Minh Tri ◽  
Bui Tung Hiep ◽  
Tran Nhat Anh

Objectives: To evaluate the rationality and effectiveness of clinical pharmacist’s intervention in the use of painkillers for post-operative pain treatment at the General Surgery Department of Cai Nuoc General Hospital. Objects and methods: Cross-sectional descriptive study on 172 patients (patients) undergoing surgery at General Surgery Department, Cai Nuoc General Hospital. Results: There were 38.95% of patients studied with adverse effects when using painkillers. The average duration of painkiller use after surgery was 5.6 ± 4.0 days. The differences in the mean time to take the drug between the 2 groups were statistically significant. VAS pain scores of the study samples tended to decrease gradually over 1, 3, 5, 7 days after surgery. On 2 research groups, in general, the average VAS score after 1 day surgery was 4.2 ± 1.9 points and after 7 days was 1.1 ± 0.8 points. Increase the reasonable rate in choosing drugs group 2 with reasonable rate was had a reasonable rate of 68.18%, much higher than group 1 with 46.43%. Conclusion: The incidence of adverse effects was low. The differences in the mean time to take the drug 70.45%, much higher than group 1 with 42.86%; drug dose, group 2 had reasonable rate was 82.95%, much higher than group 1 with 55.95%; the rationality of drug use, group 2 between the 2 groups were statistically significant. VAS pain scores of the study samples tended to decrease gradually over 1, 3, 5, 7 days after surgery. Increase the rationality of drug selection, drug dosage, and general rationality of post-operative pain treatment.


2021 ◽  
pp. 155335062110331
Author(s):  
Ricardo Horta ◽  
Cátia S. Domingues ◽  
Cláudia C. Dias ◽  
Diogo Barreiro

Background. Scar appearance is an important outcome in abdominoplasty surgery, and its asymmetry can have a significant impact on patient and surgeon satisfaction. Here, we compared the scar symmetry reached with a ruler specially designed for the preoperative marking in abdominoplasty to the classic preoperative incision marking. Methods. In this randomized, uni-blind study, 42 patients were allocated to 2 different groups. Group 1 patients had their preoperative marking made by a group of surgeons that used the classic technique as described by Baroudi (n = 21), and Group 2 patients received their preoperative marking by another group of surgeons, using a ruler specially designed to fit the abdominal contour (n = 21). Patients were evaluated using a standard questionnaire that collected information about general patient’s characteristics. On the follow-up period, we evaluated the presence of late surgical complications, need for revision surgery, patient’s satisfaction concerning the postoperative scar, and 4 distances were measured in both groups to assess symmetry. Statistical analysis was made. Results. A total of 42 patients underwent abdominoplasty and were evaluated on the follow-up period (mean time: 4 months). The mean difference of corresponding measures on each side (A-B vs. A-B’ and A-C vs. A-C’) was higher in Group 1 comparing to Group 2. The level of correlation between corresponding measurements was higher in Group 2. Better satisfaction regarding the scar symmetry was achieved in Group 2, being this result statistically significant ( P = .004). Conclusions. The use of the specialized ruler may help surgeons achieve a better scar symmetry with higher patient satisfaction.


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