• Title/Summary/Keyword: Retrospective Studies

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The Literary World of T. Tolstaya (따지야나 똘스따야의 문학세계 - '잃어버린 낙원', 유년으로의 회귀)

  • Lee, Soo Yeon
    • Cross-Cultural Studies
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    • v.23
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    • pp.265-293
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    • 2011
  • This study focused on the literary world of T. Tolstaya, a Russian writer who takes a crucial position in contemporary Russian literature, drawing upon the wrier's a couple of short stories. 'Youth' is a key motive encompassing all works of Tolstaya, so that it becomes the poetic keynote among her literary works. In order to examine such distinctions of the main characters' world awareness in their youth as shown in Tolstaya's literary works, Chapter 2 of this paper paid a special attention to the analyse of her representative works such as "Sitting on a Golden Terracing Stone" and "Meeting with a Bird", and expressed potential implications of youth with mimetic imagination for her. For Tolstaya, youth is perceived as a paradise but original imagination of youth gradually fades away in adult and ends up with a lost paradise. This is why Tolstaya uses poetic means based on nostalgia for youth like paradise and literary motto for recovery of imagination in youth. In this regard, this study particularly examined the retrospective prologue resisting the power of time as well as different fictional characters living in her own fantastic world. As a result, this study draws a conclusion that such longing and nostalgia for youth and lost paradise as delineated by Tolstaya through retrospective prologue and characters speak for an existential speculation that explores any profound implication of afflictions in reality of human life, rather than focusing on the painful reality of human life which consists of honest dialogues with realities like 'darkness' and 'pain.' In addition, this study, complying with Zolotonosov's ideas which deal with and define Tolstaya's literary works as a shabby and humble box invisibly containing a full wealth of precious jewels inside, sheds a new light on the writer's literary world.

Effectiveness of comprehensive traditional Korean Medicine treatment on quality of life, anorexia and cachexia of cancer patients : Retrospective chart review (암 환자의 삶의 질, 식욕 부진과 악액질에 대한 복합 한의 치료 프로그램의 효과: 후향적 차트 리뷰)

  • Han, Wonju;Lee, Eunji;Han, Gajin;Yoon, Sang-hoon;Han, Gajin;Leem, Jungtae
    • The Journal of Korean Medicine
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    • v.40 no.2
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    • pp.119-132
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    • 2019
  • Purpose: This study was conducted to collect and analyze real world data to evaluate the effectiveness and safety of comprehensive traditional Korean Medicine treatment on quality of life, anorexia and cachexia of cancer patients. Methods: We analyzed medical records of 62 cancer patients admitted to O-I Dang Korean Medicine Hospital from February 2018 to February 2019. The primary outcome was a change score in the Anorexia/Cachexia Subscale of Functional Assessment of Anorexia/Cachexia Therapy (FAACT). The secondary outcomes were Functional Assessment of Cancer Therapy-General (FACT-G), Trial Outcome Index(TOI) of FAACT, 11 point Pain Intensity Numeric Rating Score (11 PI-NRS) and Patient Global Impression of Change (PGIC) and adverse event. Results: Cachexia and quality of life in cancer patients assessed by FAACT, increased by $5.59{\pm}14.83$ (p=0.004) after treatment. PI-NRS was reduced by $2.10{\pm}1.81$ (p<0.001) and TOI and FACT-G total scores were increased by $5.17{\pm}11.70$ (p=0.001) and $3.59{\pm}10.94$ (p=0.012), respectively. These results were also clinically meaningful assessed via minimal clinically important difference (MCID). There was no severe adverse event. Conclusion: These findings suggest that comprehensive traditional Korean Medicine treatment might be effective and safe strategy for improving quality of life, anorexia, cachexia and pain of cancer patients. Further advanced studies with controlled group and more participants with rigorous design are needed to ensure these findings.

Venous malformations of the head and neck: A retrospective review of 82 cases

  • Park, Hannara;Kim, Jin Soo;Park, Hyochun;Kim, Ji Yoon;Huh, Seung;Lee, Jong Min;Lee, Sang Yub;Lee, Seok Jong;Lee, Joon Seok;Lee, Jeong Woo;Chung, Ho Yun
    • Archives of Plastic Surgery
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    • v.46 no.1
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    • pp.23-33
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    • 2019
  • Background Venous malformations (VMs) are a common type of vascular malformation. However, their causes and management remain unclear, and few studies specific to VMs of the head and neck have been reported. This study describes our experiences with VMs of the head and neck. Methods This retrospective study included 82 patients who underwent treatment for head and neck VMs, among 222 who visited our vascular anomalies center. Medical records between 2003 and 2016 were reviewed to identify common features in the diagnosis and treatment. The diagnosis of suspected head and neck VMs was based on the results of imaging studies or biopsies, and the VMs were analyzed based on magnetic resonance imaging, computed tomography, and Doppler sonography findings. Results VMs were slightly more common in female patients (59.8%), and 45.1% of patients developed initial symptoms at the age of 10 or younger. Lesions were slightly more common on the right side (47.3%). The main sites involved were the cheek (27.7%) and lip area (25.5%). The muscle layer was commonly involved, in 98.7% of cases. Small lesions less than 5 cm in diameter accounted for 60.8% of cases, and well-defined types were slightly more prevalent at 55.4%. Improvement was observed in 77.1% of treated patients. Conclusions Early and accurate diagnosis and appropriate treatment according to individual symptoms are important for successful treatment of VMs. If treatment is delayed, the lesions can worsen, or recurrence becomes more likely. Therefore, VMs require a multidisciplinary approach for early and accurate diagnosis.

Scolopendra Pharmacopuncture Combined with Electroacupuncture for the Treatment of Ganglion Cysts: A Retrospective Study

  • Choe, Seon;Jerng, Ui Min;Park, Jeong Hwan;Kim, Sungha;Kim, Sungchul;Lee, Jinbok;Lee, Jun-Hwan;Shin, Minseop
    • Journal of Pharmacopuncture
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    • v.23 no.4
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    • pp.247-251
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    • 2020
  • Objectives: Ganglion cysts require a sustainable treatment that suppresses their frequent recurrence. This study aimed to explore the clinical effects of Scolopendra pharmacopuncture (SP) and electroacupuncture on ganglion cysts. Methods: We retrospectively reviewed the patient records and follow-up reports for 20 patients with wrist ganglion cysts who received SP and electroacupuncture from April 2016 to March 2017. The cyst diameter, recurrence, visual analog scale (VAS) scores for pain, the Korean version of the disabilities of arm, shoulder, and hand (K-DASH) score, and the Korean version of the patient-rated wrist evaluation (K-PRWE) score before and after treatment were noted. Results: After treatment, the cyst diameter decreased significantly from 13.61 ± 6.41 mm to 5.15 ± 6.18 mm (p < 0.001), and VAS score for pain decreased from 1.31 ± 1.77 to 0.41 ± 0.33 (p = 0.021). Further, the K-DASH score decreased significantly from 8.97 ± 12.66 to 2.21 ± 7.39 (p = 0.016), and score for the function subscale of K-PRWE decreased from 11.37 ± 4.48 to 9.1 ± 3.67 (p = 0.046). No recurrences were reported from the followed-up patients. Any complication related to SP or electroacupuncture was not observed, except mild rash, itching, and swelling at the injection site in four patients. Conclusion: Combination of SP and electroacupuncture may be effective in treating ganglion cysts; further prospective studies with large population are needed to clarify the effect of SP and electroacupuncture.

Marginal bone level change during sequential loading periods of partial edentulous rehabilitation using immediately loaded self-tapping implants: a 6.5-year retrospective study

  • Wang, Jing;Zhang, Zhengchuan;Deng, Feilong
    • The Journal of Advanced Prosthodontics
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    • v.14 no.3
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    • pp.133-142
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    • 2022
  • PURPOSE. A large number of studies have suggested the practicability and predictability of immediate implant function, but few studies have reported marginal bone level changes during sequential loading periods. The purpose of this study was to evaluate the marginal bone remodeling of immediately loaded self-tapping implants both at each time point and during each loading period between two time points. MATERIALS AND METHODS. The patients included in this retrospective study were treated with immediately loaded NobelSpeedy Replace implants between August 2008 and July 2009. Differences in the marginal bone level (MBL) at each time point and the marginal bone level change (ΔMBL) between two time points were analyzed with Bonferroni correction (P < .05). RESULTS. Overall, 24 patients (mean age, 47.3 ± 12.8 years) with 42 immediately loaded implants and a median follow-up of 6.5 years (IQR, 67.8 months) were included. The cumulative survival rate after 10 - 12 years was 95.2%. Continuous but slow marginal bone loss was observed during long-term follow-up. MBL at both 7.5 years and 11 years was significantly lower than that at loading, 6 months, 2 years and 4 years (P < .05). No bone loss difference was found in any period before 4 years of follow up (P > .05). The loading period of 4 years to 7.5 years showed the largest ΔMBL compared to those of other time periods (P < .05). CONCLUSION. Slight bone loss occurred continuously, and more radical changes of marginal bone can be observed during the period of 4-7.5 years. Thus, long-term effective follow-up of immediately loaded implants is needed.

The impact of quality of life measured by WHOQOL-BREF on mortality in maintenance hemodialysis patients: a single center retrospective cross-sectional study

  • Seong Gyu Kim;In Hee Lee
    • Journal of Yeungnam Medical Science
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    • v.40 no.1
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    • pp.49-57
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    • 2023
  • Background: Several previous studies have reported that quality of life (QoL) in hemodialysis patients affects mortality. However, the 36-item Short Form Health Survey, which has been used mainly in previous studies, is complicated in terms of questionnaire composition and interpretation. This study aimed to identify the impact of QoL on mortality in hemodialysis patients using an easier and simpler diagnostic tool. Methods: This retrospective study included 160 hemodialysis patients. QoL was evaluated using the World Health Organization Quality of Life Questionnaire-Brief version (WHOQOL-BREF). Psychosocial factors were evaluated using the Hospital Anxiety and Depression Scale, Multidimensional Scale of Perceived Social Support, Montreal Cognitive Assessment, and Pittsburgh Sleep Quality Index. We also evaluated medical factors, such as dialysis adequacy and laboratory results. Results: The mean hemodialysis vintage was 70.7±38.0 months. The proportion of patients who were elderly was higher in the mortality group than in the surviving group, and the Charlson Comorbidity Index score was also higher in the former group. Of the four domains of the WHOQOL-BREF, the physical health and psychological scores of the mortality group were significantly lower than those of the survival group. When the score in the physical health domain or psychological domain was ≤10, the 10-year mortality rate after hemodialysis initiation increased by approximately 2.3- and 2-fold, respectively. Conclusion: QoL may have a significant effect on mortality in patients undergoing hemodialysis. The WHOQOL-BREF is an instrument that can measure QoL relatively easily and can be used to improve the long-term prognosis of patients undergoing hemodialysis.

Minimally Invasive Procedure versus Conventional Redo Sternotomy for Mitral Valve Surgery in Patients with Previous Cardiac Surgery: A Systematic Review and Meta-Analysis

  • Muhammad Ali Tariq;Minhail Khalid Malik;Qazi Shurjeel Uddin;Zahabia Altaf;Mariam Zafar
    • Journal of Chest Surgery
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    • v.56 no.6
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    • pp.374-386
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    • 2023
  • Background: The heightened morbidity and mortality associated with repeat cardiac surgery are well documented. Redo median sternotomy (MS) and minimally invasive valve surgery are options for patients with prior cardiac surgery who require mitral valve surgery (MVS). We conducted a systematic review and meta-analysis comparing the outcomes of redo MS and minimally invasive MVS (MIMVS) in this population. Methods: We searched PubMed, EMBASE, and Scopus for studies comparing outcomes of redo MS and MIMVS for MVS. To calculate risk ratios (RRs) for binary outcomes and weighted mean differences (MDs) for continuous data, we employed a random-effects model. Results: We included 12 retrospective observational studies, comprising 4157 participants (675 for MIMVS; 3482 for redo MS). Reductions in mortality (RR, 0.54; 95% confidence interval [CI], 0.37-0.80), length of hospital stay (MD, -4.23; 95% CI, -5.77 to -2.68), length of intensive care unit (ICU) stay (MD, -2.02; 95% CI, -3.17 to -0.88), and new-onset acute kidney injury (AKI) risk (odds ratio, 0.34; 95% CI, 0.19 to 0.61) were statistically significant and favored MIMVS (p<0.05). No significant differences were observed in aortic cross-clamp time, cardiopulmonary bypass time, or risk of perioperative stroke, new-onset atrial fibrillation, surgical site infection, or reoperation for bleeding (p>0.05). Conclusion: The current literature, which primarily consists of retrospective comparisons, underscores certain benefits of MIMVS over redo MS. These include decreased mortality, shorter hospital and ICU stays, and reduced AKI risk. Given the lack of high-quality evidence, prospective randomized control trials with adequate power are necessary to investigate long-term outcomes.

Clinical evaluation of 3.0-mm narrow-diameter implants: a retrospective study with up to 5 years of observation

  • InKyung Hwang;Tae-Il Kim;Young-Dan Cho
    • Journal of Periodontal and Implant Science
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    • v.54 no.1
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    • pp.44-52
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    • 2024
  • Purpose: This study aimed to evaluate the clinical outcomes of a single type of narrow-diameter implant (NDI) by investigating its survival rate and peri-implant marginal bone loss (MBL). In addition, variables possibly related to implant survival and MBL were investigated to identify potential risk factors. Methods: The study was conducted as a retrospective study involving 49 patients who had received 3.0-mm diameter TSIII implants (Osstem Implant Co.) at Seoul National University Dental Hospital. In total, 64 implants were included, and dental records and radiographic data were collected from 2017 to 2022. Kaplan-Meier survival curves and a Cox proportional hazard model were used to estimate the implant survival rate and to investigate the effects of age, sex, jaw, implant location, implant length, the stage of surgery, guided bone regeneration, type of implant placement, and the surgeon's proficiency (resident or professor) on implant survival. The MBL of the NDIs was measured, and the factors influencing MBL were evaluated. Results: The mean observation period was 30.5 months (interquartile range, 26.75-45 months), and 6 out of 64 implants failed. The survival rate of the NDIs was 90.6%, and the multivariate Cox regression analysis showed that age was associated with implant failure (hazard ratio, 1.17; 95% confidence interval, 1.04-1.31, P=0.01). The mean MBL was 0.44±0.75 mm, and no factors showed statistically significant associations with greater MBL. Conclusions: NDIs can be considered a primary alternative when standard-diameter implants are unsuitable. However, further studies are required to confirm their long-term stability.

Timing of laparoscopic cholecystectomy after endoscopic retrograde cholangiopancreatography in cholelithiasis patients: A systematic review and meta-analysis

  • Napaphat Poprom;Wikran Suragul;Paramin Muangkaew;Watoo Vassanasiri;Narongsak Rungsakulkij;Somkit Mingphruedhi;Pongsatorn Tangtawee
    • Annals of Hepato-Biliary-Pancreatic Surgery
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    • v.27 no.1
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    • pp.20-27
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    • 2023
  • There are many variations and unclear definitions of the appropriate timing of laparoscopic cholecystectomy (LC) after endoscopic retrograde cholangiopancreatography (ERCP), and there is still a lack of consistency about the appropriate timing. Inappropriate timing can be associated with serious comorbidity and can affect the patients. This meta-analysis was conducted to assess the operative outcomes and morbidity to provide a benefit to the patients based on the best timing of LC after ERCP. Randomized controlled trials (RCTs) and retrospective studies were identified from the PubMed and Scopus databases from inception to July 2021. A meta-analysis was performed to estimate the treatment effects on operative outcomes and morbidity. Four RCTs and four retrospective studies met our inclusion criteria. A meta-analysis indicated that patients who received LC after ERCP on the same day or within 72 hours had about 0.354 days shorter length of hospital stay with a shorter operative time of about 0.111-1.835 minutes and a lower risk of complications around 37%-73%. Our evidence suggests that the appropriate timing of LC after ERCP is either the same day or within 72 hours for treating cholelithiasis patients based on the severity of disease.

Toward Developing a Provenance Conceptual Model for Data-driven Electronic Records (데이터형 전자기록을 위한 출처 개념 모델 개발 방향)

  • Hyun, Moonsoo
    • The Korean Journal of Archival Studies
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    • no.79
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    • pp.305-341
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    • 2024
  • This study explored the possibilities of a new approach to developing the provenance concept to electronic records in the data-driven digital environments by reviewing and adopting data provenance concepts and models. It then conducted basic literature review to develop a ground for a model representing the provenance of data-driven electronic records. In particular, it proposed to embrace to the concepts of retrospective and prospective provenance, and to develop a different model for representing provenance from records management metadata. If the model can be developed that can represent provenance independently while maintaining a dynamic relationship with records, it can be ensure the fluidity of records and even support to secure the record's attributes and play the roles of provenance. Eventually, it proposed the direction to develop the provenance model which can support the fixity of records, the reproducibility of activities, and the trustworthiness of representations. It is expected to be a fit provenance model in the data-driven digital environment.