scholarly journals Secondary cancers among children with acute lymphoblastic leukaemia treated by the Tokyo Children's Cancer Study Group protocols: a retrospective cohort study

2013 ◽  
Vol 164 (1) ◽  
pp. 101-112 ◽  
Author(s):  
Yasushi Ishida ◽  
Miho Maeda ◽  
Kevin Y. Urayama ◽  
Chikako Kiyotani ◽  
Yuki Aoki ◽  
...  
Keyword(s):  
Cohort Study ◽  
Acute Lymphoblastic Leukaemia ◽  
Lymphoblastic Leukaemia ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Study Group ◽  
Cancer Study ◽  
Secondary Cancers ◽  
Cancer Study Group

scholarly journals Clomiphene Citrate Priming Increases Sensitivity During Ovarian Stimulation in Poor Ovarian Responders Undergoing In Vitro Fertilization Treatment: A Retrospective Cohort Study

2021 ◽  
Author(s):  
Shan Liu ◽  
Xinyu Liu ◽  
Huanhuan Li ◽  
Minghui Liu ◽  
Yasu Lv ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Ovarian Stimulation ◽  
Retrospective Cohort ◽  
Clomiphene Citrate ◽  
Control Group ◽  
Study Group ◽  
Poor Ovarian Responders ◽  
Gonadotropin Dosage ◽  
Antagonist Protocol

Abstract Background: Since ovarian stimulation was introduced as an assisted reproductive technology, poor ovarian response (POR) management has challenged clinicians. Guidance on optimally managing patients with poor response and/or low sensitivity to ovarian stimulation is still lacking. We aimed to investigate whether a clomiphene citrate (CC) priming protocol could increase ovarian sensitivity in poor ovarian responders. Methods: This single-center retrospective cohort study included 294 patients (374 ovarian stimulation cycles). Of these, 193 cycles were treated by a CC priming antagonist protocol (study group) and 181 by the classical flexible gonadotropin-releasing hormone antagonist protocol (control group). Stimulation data and laboratory and clinical outcomes were compared between the groups. Results: Total gonadotropin dosage and dosage per follicle were considerably lower, the follicle-to-oocyte index was significantly higher, and the gonadotropin duration was shorter in the study group. After adjusting for potential confounders, multivariate regression analysis showed that cumulative ongoing pregnancy remained comparable between the groups (adjusted odds ratio: 0.761, 95% confidence interval: 0.300-1.933, P = 0.566). Age, body mass index, gonadotropin dosage per follicle, and the follicle-to-oocyte index were directly associated with the reproductive outcomes. The result of the sensitivity analysis showed that patients stimulated by the CC priming antagonist protocol were administered less gonadotropin (1,739.09 ± 719.39 vs. 3,114.77 ± 1,171.23, P < 0.001) at a lower gonadotropin dosage per follicle (637.36 ± 373.05 vs. 1286.26 ± 976.66, P < 0.001) and for a shorter duration (6.58 ± 2.23 vs. 9.80 ± 1.90, P < 0.001). Conclusions: The CC priming antagonist protocol offered a convenient and patient-friendly way to increase ovarian sensitivity during ovarian stimulation in poor ovarian responders.

scholarly journals Acupuncture Decreases the Incidence of Post-stroke Dementia: A Taiwan Nationwide Retrospective Cohort Study

2020 ◽  
Author(s):  
Shao-Ang Chu ◽  
Te-Yuan Chen ◽  
Po-Yuan Chen ◽  
Wei-Jie Tzeng ◽  
Cheng-Loong Liang ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Acupuncture Treatment ◽  
Lower Probability ◽  
Control Group ◽  
Study Group ◽  
Research Database ◽  
Post Stroke ◽  
Incidence Of Dementia

Abstract BACKGROUND Stroke has been recognized as one of the major causes of adult disability worldwide, and post-stroke dementia may affect up to one-third of stroke survivors. This condition could be prevented if we could recognize and treat it earlier. Acupuncture as a complementary treatment for stroke has been shown to be beneficial for subsequent post-stroke rehabilitation. Our study investigated if acupuncture served additional advantages to decreasing the incidence of post-stroke dementia. METHODS We provide a retrospective cohort study from Taiwan National Health Insurance Research Database. This study compared the incidence of post-stroke dementia between cohorts with and without acupuncture treatment by calculating adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) of acupuncture associated with post-stroke dementia using Cox proportional hazard regressions. The study group was composed of 9,547 patients who received first hospitalization for the treatment of stroke between 2002 and 2004; of which, 47,735 comparison patients were defined as the control group. The two groups were followed-up until the diagnosis of dementia presented or until the end of 2007. RESULTS The adjusted HRs of developing dementia among patients with stroke was 4.705 times the average (range, 4.353–5.085), and the incidence of dementia was higher in males. The study group tended to have less incidence of all kinds of dementia after acupuncture treatment, and patients without stroke receiving acupuncture had a lower probability of dementia than those untreated during the follow-up period. CONCLUSIONS This study presents evidence that acupuncture serves as an effective and alternative procedure to lower the risk of post-stroke dementia and the overall incidence of dementia in Taiwanese population.

Secondary cancers after a childhood cancer diagnosis: a nationwide hospital-based retrospective cohort study in Japan

2015 ◽  
Vol 21 (3) ◽  
pp. 506-516 ◽  
Author(s):  
Yasushi Ishida ◽  
Dongmei Qiu ◽  
Miho Maeda ◽  
Junichiro Fujimoto ◽  
Hisato Kigasawa ◽  
...  
Keyword(s):  
Cohort Study ◽  
Childhood Cancer ◽  
Cancer Diagnosis ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Secondary Cancers
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