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1.
J Obstet Gynaecol India ; 74(1): 31-37, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38434131

ABSTRACT

Objective: The objective of this study was to evaluate the effectiveness of structured workshops in improving the knowledge and skills of obstetrics and gynecology residents for repairing high-grade perineal lacerations. Materials and methods: This quasi-experimental multicenter study evaluated the baseline knowledge of obstetrics and gynecology residents using an online patient-management problem (PMP) tool. After the initial evaluation, a workshop was conducted using sponge models to teach the practical technique for repairing high-grade perineal lacerations, including external and internal anal sphincter repair. The residents' knowledge was reassessed by PMP exams at 3 and 6 months after the workshop, and the scores were compared to the baseline statistics. Result: Eighty residents participated in the study, including 26, 22, and 32 at the first, second, and third-year levels of residency, respectively. The total PMP scores significantly improved after three months of the workshop, with an increasing total score from 15.5 (baseline) to 31.3 (p = 0.027) (range of total score from - 63 to + 52). The senior residents performed better before and after three months of the intervention. However, in the six-month follow-up, the total PMP score of all residents decreased to 12.3 with no significant difference with pre-education scores at all levels. Similar significant results were also reported for each PMP question at all levels of residency. Conclusion: The study found that obstetrics and gynecology residents had substandard knowledge in repairing perineal lacerations. Although the training workshop significantly increased residents' knowledge, its effectiveness diminished over time, indicating a need for continuous or periodic training. Supplementary Information: The online version contains supplementary material available at 10.1007/s13224-023-01792-6.

2.
Taiwan J Obstet Gynecol ; 62(2): 252-255, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36965891

ABSTRACT

OBJECTIVE: Pericervical ring reconstruction through restoration of pubocervical and rectovaginal fascia is performed concomitantly with sacrospinous hysteropexy as a transvaginal native tissue procedure for vaginal apical prolapse. The main goal of this study was to assess subjective and objective outcomes of sacrospinous hysteropexy and additional pericervical ring reconstruction. MATERIALS AND METHODS: We conducted a prospective and observational study. All participants underwent sacrospinous hysteropexy and pericervical ring reconstruction and perineorrhaphy. Surgical complications, anatomical and functional efficacy were assessed. RESULTS: 108 cases were included in this study. The mean follow-up timeframe was 18.62 ± 1.22 months (minimum 12 and maximum 26 months). All parameters of subjective outcomes were improved significantly. The overall anatomic success rate was 92.59%. Mean operation time was 50.64 ± 20.8 min. No major intraoperative or postoperative complications were found. There was no statistically significant difference in demographic characteristics including age, BMI, gravidity, medical comorbidities, menopausal status, sexual activity, pretreatment prolapse severity scores between subjects with failure, and good anatomical outcome. Recurrence was mostly observed in patients with higher prolapse stages of anterior and apical compartments. Baseline POP-Q parameters Ba, C, D were significantly higher in cases with failure. CONCLUSION: Our study disclosed sustainable anatomic and subjective outcomes of modified sacrospinous hysteropexy by means of additional pericervical ring reconstruction.


Subject(s)
Pelvic Organ Prolapse , Uterine Prolapse , Female , Humans , Prospective Studies , Treatment Outcome , Uterus/surgery , Uterine Prolapse/surgery , Vagina/surgery , Pelvic Organ Prolapse/surgery , Gynecologic Surgical Procedures/methods
3.
J Family Reprod Health ; 14(1): 1-4, 2020 Mar.
Article in English | MEDLINE | ID: mdl-32863832

ABSTRACT

Division of Female Pelvic Medicine and Surgery, Department of Obstetrics and Gynecology, Emam Khomeini Hospital, Tehran University of medical sciences proposed a clinically relevant algorithm to guide appropriate decision making based on underlying risk stratification and resource utilization in order to resume elective surgeries, following COVID-19 pandemic crisis. The consequence of standardized decision-making factors and transparency of the principles will provide more assurance, consistency, and reliability on both sides, care providers and the patient. It also will decrease ethical dilemmas and moral criticism for surgeons. Eventually, this approach is applicable in any other disaster preparedness as a logical stratification of surgical indications for the female pelvic floor surgical procedures.

4.
J Lasers Med Sci ; 11(1): 65-69, 2020.
Article in English | MEDLINE | ID: mdl-32099629

ABSTRACT

Introduction: After menopause women experience vaginal atrophy related to hormonal changes and estrogen deficiency. The purpose of this paper was to evaluate the effect of the fractional CO2 laser on the quality of life, vaginal atrophy symptoms, and urine incontinency in menopause women. Methods: This prospective study was conducted among 140 women from 2017 to 2018 in Yas hospital, Tehran University of Medical Sciences. They encountered the fractional microablative CO2 laser system three times at four-week intervals. The short form of the Health Questionnaire (SF-12) and the Female Sexual Functional Index (FSFI) questionnaire were utilized to assess the participants' quality of life. Also, the standard measuring tools including the vaginal health index (VHI) and International Consultation on Incontinence Questionnaire (ICIQ) Form were used to evaluate the vaginal atrophy symptoms. Results: The quality of life improved significantly in somatic, social function, and mental health. In the sexual context, arousal and satisfaction status improved significantly. Also, the frequency of urinary incontinence, enuresis, urgency, and the leak improved significantly (P<0.05). Among the scale variables for urinary function, it was seen that the urgency impact had no improvement. All vaginal indices improved (P<0.05). Conclusion: The fractional CO2 laser can be effective in treating vaginal atrophy and urinary symptoms. Besides, it improved the quality of life and the sexual function of post-menopausal women.

5.
Anesth Pain Med ; 10(5): e103729, 2020 Oct.
Article in English | MEDLINE | ID: mdl-34150561

ABSTRACT

BACKGROUND: Pain is one of the most challenging issues following surgery, and it is crucial to provide adequate and appropriate pain control measures. OBJECTIVES: This study assessed the efficacy of preoperative duloxetine in controlling postoperative pain in women following an abdominal hysterectomy in Yas Hospital affiliated to Tehran University of Medical Sciences between December 2019 and April 2020. METHODS: The study involved 80 women who were candidates for elective abdominal hysterectomy. The participants were randomly assigned to one of two groups. Group 1 received a 60 mg duloxetine capsule two hours before surgery. Group 2 received placebo following the same schedule. The amount of administrated opioids and the time from surgery to the administration of opioids were recorded, along with the frequency of nausea and vomiting experienced. RESULTS: Two patients from each group withdrew before the study ended. In total, 38 women in each group were assessed. There were no significant differences in age, duration of surgery, and the amount of administrated opioids between the two groups. However, the number of patients who had nausea and vomiting differed significantly between the two groups (65% vs. 34%; P = 0.006). CONCLUSIONS: Our findings showed that duloxetine was not effective in controlling pain after abdominal hysterectomy. In addition, patients who received duloxetine had a significantly higher rate of nausea/vomiting.

6.
Int J Gynecol Cancer ; 26(5): 971-6, 2016 06.
Article in English | MEDLINE | ID: mdl-27101581

ABSTRACT

OBJECTIVES: Methotrexate (MTX) and Actinomycin-D (Act-D) are effective drugs used in the treatment of low-risk gestational trophoblastic neoplasia (LRGTNs). The aim of the present study was to compare intravenous (IV) MTX and IV Act-D in the treatment of LRGTNs. MATERIALS AND METHODS: Sixty-two patients with LRGTN were enrolled in a prospective randomized clinical trial between 2010 and 2013 in Moheb e Yas Hospital, Tehran University of Medical Sciences. Primary treatment regimens were IV MTX, 0.4 mg/kg daily for 5 days every 14 days (25 mg maximum daily dose), and IV Act-D, 1.25 mg/m (2 mg maximum dose) every 14 days. RESULTS: Thirty-two and 30 patients were enrolled to MTX and Act-D groups, respectively. Complete remission after receiving first-line chemotherapy was achieved in 79% of all cases, 80% in the Act-D group and 78.1% in the MTX group.Twenty percent of the Act-D patients and 21.9% of the MTX patients showed resistance to the first-line chemotherapy, of which 16.7% and 15.6% responded completely to the second-line monotherapy, respectively. Multiple drug therapy was needed in 3.3% of the Act-D group and 6.3% of the MTX group.We did not find any correlation between treatment response and beta-human chorionic gonadotropin level, uterine mass size, lung metastasis, antecedent pregnancy, and duration from diagnosis to treatment. Adverse effects were not statistically different between the 2 groups. CONCLUSIONS: Single-agent chemotherapy in the treatment of LRGTNs resulted in an overall complete remission rate of 79%, 80% in the Act-D group and 78.1% in MTX group, with no statistically significant difference. Whereas this study represents an important step in comparing single-agent treatments, comparison of other regimens will be required to determine the optimal single-agent therapy.


Subject(s)
Dactinomycin/administration & dosage , Gestational Trophoblastic Disease/drug therapy , Methotrexate/administration & dosage , Adult , Antibiotics, Antineoplastic/administration & dosage , Antimetabolites, Antineoplastic/administration & dosage , Drug Administration Schedule , Female , Humans , Injections, Intramuscular , Injections, Intravenous , Pregnancy , Prospective Studies
7.
Taiwan J Obstet Gynecol ; 54(6): 660-5, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26700981

ABSTRACT

OBJECTIVE: The goal of this study was to compare the effectiveness of misoprostol via sublingual and vaginal administration versus the combination route in the termination of 13 to 24 week pregnancies. MATERIALS AND METHODS: One hundred and ninety-five patients, divided into three groups, were enrolled in this study. In the vaginal group, two 200-µg misoprostol tablets were inserted into the posterior fornix every 4 hours for 48 hours. In the sublingual group, patients took two 200-µg misoprostol tablets every 4 hours for up to 48 hours. In the combination group, two 200-µg misoprostol tablets were inserted within the posterior fornix followed by the administration of 400 µg misoprostol sublingually every 4 hours for a period of 48 hours. Efficacy was defined as a successful termination without the need for any interventions. RESULTS: The success rate, after 24-48 hours, was not significantly different among the three groups. It was significantly higher within the first 12 hours of misoprostol administration within the sublingual group (p = 0.031). Nonetheless, the overall failure rate was not significantly different between three groups. The mean duration of abortion was shortest among the sublingual group (655 ± 46 minutes), p = 0.005, and the number of misoprostol tablets administered was lower when compared to the other groups (5.9 ± 0.3), p = 0.001. The duration of abortion and the number of misoprostol tablets used significantly varied in the cases in which the patient had a history of a previous normal vaginal delivery (NVD; p = 0.007). The average number of tablets administered was the lowest in the sublingual group. The prevalence of fever among the NVD cases were significantly higher in the combination group (p = 0.008). Overall, of all the methods, patients preferred the sublingual route (p = 0.001). CONCLUSION: Sublingual misoprostol has a higher efficacy when compared to the vaginal and combination methods.


Subject(s)
Abortifacient Agents, Nonsteroidal/administration & dosage , Abortion, Induced , Misoprostol/administration & dosage , Administration, Intravaginal , Administration, Sublingual , Adult , Female , Fever/etiology , Humans , Patient Preference , Pregnancy , Pregnancy Trimester, First , Pregnancy Trimester, Second
8.
Ther Adv Endocrinol Metab ; 6(2): 56-60, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25941563

ABSTRACT

BACKGROUND: Pioglitazone is one of the antidiabetic agents used in the management of type 2 diabetes mellitus (DM). The effect of pioglitazone on blood glucose, lipid profile, liver enzymes and weight has been shown with conflicting results. In this study we aim to evaluate the effect of pioglitazone on the weight, lipid profile and liver enzymes in patients with DM. METHODS: In this single-arm clinical trial, 110 poorly controlled diabetic type 2 patients (63.6% female with mean age of 54.26 ± 8.96 years) who were on maximal dosage of metformin and glibenclamide were enrolled. Patients were treated with pioglitazone for 3 months and laboratory. Fasting blood sugar (FBS), haemoglobin A1C (HbA1C), cholesterol, triglyceride, low-density lipoprotein (LDL) and high-density lipoprotein (HDL), alkaline phosphatase (ALK-P), alanine aminotransferase (ALT), aspartate aminotransferase (AST) and weight changes were measured before and at the end of the study. RESULTS: The levels of FBS (p < 0.001), HbA1c (p < 0.001), triglyceride (p = 0.001), ALT (p = 0.005) and ALK-P (p = 0.001) were significantly decreased, but weight was significantly increased (p < 0.001) after the intervention. There were no significant difference in cholesterol, LDL and HDL values before and after study. CONCLUSION: Although pioglitazone causes a significant decrease in FBS, HbA1C and triglyceride levels, it is associated with weight gain, which would limit its utility. IRCT registration code: IRCT201209276712N2.

9.
J Reprod Infertil ; 15(4): 199-204, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25473628

ABSTRACT

BACKGROUND: The purpose of this study was to assess the vasopressin effect on operation time and the need for electrocauterization frequency and ovarian reserve during laparoscopic stripping of ovarian endometriomas. METHODS: This was a randomized prospective clinical trial, in which twenty patients between 18-35 years with unilateral endometriomas were randomly divided in two groups of cases and controls. Laparoscopic cystectomy was performed by hydrodissection and stripping method in both groups with diluted vasopressin injected in cases, in comparison to only saline injection in controls. Ovarian hemostasis was achieved by bipolar electrocoagulation. The operation time and frequency of electrocoagulation were compared between two groups. The ovarian reserve was determined by ultrasound examination and laboratory assessment one month before and two months after surgery in two groups. Non parametric data was analyzed by Mann-Whitney test. The p-value less than 0.05 was considered statistically significant. RESULTS: The operation time was less in cases than control group, but the difference was not statistically significant (p=0.065). The frequency of electrocoagulation for hemostasis was less in cases than controls but this difference was not statistically significant (p=0.132). The antral follicle count decreased in both groups two months later, while no significant difference was found between two groups. CONCLUSION: This study shows that diluted vasopressin decreases operation time and electrocauterization frequency during laparoscopic stripping of ovarian endometriomas; however, the difference between case and control group is not statistically significant.

10.
J Thyroid Res ; 2014: 218763, 2014.
Article in English | MEDLINE | ID: mdl-24963441

ABSTRACT

Valproic acid (VPA) has been identified as a histone deacetylase inhibitor, inducing differentiation in transformed cells. However, no study has shown the effect of VPA in the redifferentiation induction and stemness of anaplastic thyroid. The main objective of this study was to evaluate the efficacy of VPA as a differentiation therapy agent in human thyroid cancer based on its effect on stemness and differentiation process. Indications for differentiation of 8305C and B-CPAP cell lines following VPA treatment were obtained by analyzing cell proliferation rate, morphological changes, adherent-dependent colony formation, and Hoechst 33342 staining. The expressions of stemness, differentiation, and aggressiveness specific marker genes were measured by quantitative RT-PCR. VPA treatment effectively showed growth inhibition in both cell lines. The high nuclear-cytoplasmic (N : C) ratio of 8305C cells markedly decreased and treated cells became more epithelial-like. Treated cells showed stronger Hoechst 33342 fluorescence compared with control cells. The hTERT and OCT-4 reduction was paralleled with adherent-dependent colony formation decrement in both cell lines. VPA effectively induced NIS and TTF-1 in anaplastic cells, it whereas showed no clear pattern in papillary cell line. VPA treatment also resulted in the reduction of MMP-2 and MMP-9. These finding suggest that VPA could redifferentiate the anaplastic thyroid cancer cells.

11.
J Gastric Cancer ; 13(2): 106-10, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23844325

ABSTRACT

PURPOSE: We designed our study to evaluate the hypothesis that gastric cancer is correlated with iodine deficiency or thyroid dysfunction. MATERIALS AND METHODS: We investigated the total body iodine reserve, thyroid function status and autoimmune disorder in 40 recently diagnosed gastric adenocarcinoma cases versus 80 healthy controls. The participants came from a region with high gastric cancer rate but sufficient iodine supply due to salt iodination. The investigation included urine iodine level, thyroid gland clinical and ultrasonographic examination, and thyroid function tests. RESULTS: Goiter was detected more frequently in the case group (P=0.001); such a finding, however, was not true for lower than normal urine iodine levels. The free T3 mean level was significantly lower in the case group compared to the control group (P=0.005). CONCLUSIONS: The higher prevalence of goiter rather than low levels of urinary iodine in gastric adenocarcinoma cases suggests that goiter, perhaps due to protracted but currently adjusted iodine deficiency, is more likely to be associated with gastric adenocarcinoma compared to the existing iodine deficiency itself.

12.
Arch Gynecol Obstet ; 288(3): 687-9, 2013 Sep.
Article in English | MEDLINE | ID: mdl-23525594

ABSTRACT

INTRODUCTION: Cervical ectopic pregnancy is among the rarest clinical conditions happening in women of reproductive age. Yet its management can cause a high rate of morbidity. Therefore, conservative treatment of this condition is a matter of debate. MATERIAL AND METHODS: Hereby we present two cases of cervical ectopic pregnancies that were managed successfully with a conservative approach. CONCLUSION: Cervical ectopic pregnancy can be managed successfully with systemic Metotroxsate followed by curettage.


Subject(s)
Abortifacient Agents, Nonsteroidal/therapeutic use , Cervix Uteri , Methotrexate/therapeutic use , Pregnancy, Ectopic/drug therapy , Adult , Dilatation and Curettage , Female , Humans , Pregnancy , Pregnancy, Ectopic/surgery
13.
J Obstet Gynaecol Res ; 39(1): 210-6, 2013 Jan.
Article in English | MEDLINE | ID: mdl-22888767

ABSTRACT

AIM: The aim of this study was to introduce a method for uterus preservation in patients with vaginal agenesia and functional uterus. MATERIAL AND METHODS: Six patients with vaginal agenesia and one patient with cervicovaginal agenesis with functional uterus were enrolled in the study. Laparoscopy, vaginal reconstruction, laparatomy, hematocolpos evacuation and cannulation were carried out between atretic cervix and neovagina using a Pezzer catheter. No sutures or grafts were used. Patients were trained to use a vaginal mold regularly. Pezzer catheter remained in place for 6 months to maintain menstrual drainage and avoid orifice obstruction. RESULTS: The surgical procedure was successful in all cases. Menses returned and abdominal pain was relieved in all patients. Three patients faced stenosis and two cases suffered from infection. One patient became pregnant and delivered at term. Self-image and quality of life were improved in all cases. CONCLUSIONS: Uteroneovaginal cannulation using a Pezzer catheter relieves pain, restores regular menses and fertility and reduces symptoms related to retrograde menstruation in patients with vaginal agenesis and functional uterus.


Subject(s)
Catheterization/methods , Uterus/surgery , Vagina/abnormalities , Adolescent , Adult , Catheters , Female , Humans , Quality of Life , Self Concept , Vagina/surgery
14.
J Pregnancy ; 2012: 742695, 2012.
Article in English | MEDLINE | ID: mdl-22848832

ABSTRACT

BACKGROUND: Thyroid dysfunction and autoimmunity are relatively common in reproductive age and have been associated with adverse health outcomes for both mother and child, including hypertensive disorders during pregnancy. Objective. To survey the relation between thyroid dysfunction and autoimmunity and incidence and severity of pregnancy-induced hypertensive disorders. METHOD: In this case control study 48 hypertensive patients in 4 subgroups (gestational hypertension, mild preeclampsia, severe preeclampsia, eclampsia) and 50 normotensive ones were studied. The samples were nulliparous and matched based on age and gestational age and none of them had previous history of hypertensive or thyroid disorders and other underlying systemic diseases or took medication that might affect thyroid function. Their venous blood samples were collected using electrochemiluminescence and ELISA method and thyroid hormones and TSH and autoantibodies were measured. RESULTS: Hypertensive patients had significant lower T3 concentration compared with normotensive ones with mean T3 values 152.5 ± 48.93 ng/dL, 175.36 ± 58.07 ng/dL respectively. Anti-TPO concentration is higher in control group 6.07 ± 9.02 IU/mL compared with 2.27 ± 2.94 IU/mL in cases. CONCLUSION: The severity of preeclampsia and eclampsia was not associated with thyroid function tests. The only significant value was low T3 level among pregnancy, induced hypertensive patients.


Subject(s)
Autoantibodies/blood , Autoantigens/immunology , Hypertension, Pregnancy-Induced/etiology , Iodide Peroxidase/immunology , Iron-Binding Proteins/immunology , Thyroid Diseases/complications , Thyroid Hormones/blood , Adolescent , Adult , Biomarkers/blood , Case-Control Studies , Enzyme-Linked Immunosorbent Assay , Female , Humans , Hypertension, Pregnancy-Induced/blood , Hypothyroidism/blood , Hypothyroidism/complications , Hypothyroidism/diagnosis , Iran , Pregnancy , Severity of Illness Index , Thyroid Diseases/blood , Thyroid Diseases/diagnosis , Thyroid Diseases/immunology , Young Adult
15.
Arch Iran Med ; 15(3): 162-5, 2012 Mar.
Article in English | MEDLINE | ID: mdl-22369305

ABSTRACT

BACKGROUND: Our aim was to compare different thresholds of middle cerebral artery peak systolic velocity (MCA-PSV) and amniotic fluid delta optical density (Delta-OD) with fetal hemoglobin (Hb) during first and second intrauterine transfusions (IUT). METHODS: We determined serial MCA-PSV and Delta-OD in 27 red blood cell alloimmunized fetuses who needed IUT. Before the second IUT, MCA-PSV was measured. The sensitivity and specificity of MCA-PSV and Delta-OD were calculated and compared with fetal hemoglobin  levels. RESULTS: From 27 fetuses, first time IUT MCA-PSV with a normal median value (MOM) cutoff of > 1.29 detected 60% of the moderate and 100% of the severe anemia cases. MCA-PSV of MOM > 1.5 detected none of the moderate and 93% of severe anemia cases. Delta-OD detected 50% of moderate anemic and 80% of severe anemic cases. At the second IUT, 91% of severe anemia cases were confirmed by MCA-PSV with MOM > 1.5 whereas MCA-PSV with MOM > 1.29 confirmed all cases. One case of moderate anemia was de-tected by MCA-PSV of MOM > 1.29 and none were detected by MCA-PSV with MOM > 1.5. CONCLUSION: Different thresholds of MCA-PSV have higher sensitivity and specificity for detecting moderate and severe fetal anemia compared with Delta-OD. It also has a high sensitivity at the second IUT.


Subject(s)
Amniotic Fluid , Anemia/diagnosis , Blood Transfusion, Intrauterine , Fetal Diseases/diagnosis , Fetal Hemoglobin/analysis , Middle Cerebral Artery/diagnostic imaging , Rh Isoimmunization/diagnosis , Adult , Amniocentesis , Anemia/therapy , Blood Flow Velocity , Female , Fetal Diseases/therapy , Humans , Pregnancy , Pregnancy Complications, Hematologic/diagnosis , Pregnancy Complications, Hematologic/therapy , Rh Isoimmunization/therapy , Sensitivity and Specificity , Systole , Ultrasonography, Doppler , Ultrasonography, Prenatal
16.
Mol Cell Endocrinol ; 348(1): 260-9, 2012 Jan 02.
Article in English | MEDLINE | ID: mdl-21924320

ABSTRACT

Since all-trans retinoic acid (ATRA) has shown promising results in differentiation therapy, the present study was designed to investigate the effects of ATRA on thyroid carcinoma and to evaluate the effectiveness of ATRA in redifferentiation induction of thyroid carcinoma. Therefore, we investigated cell growth rate, morphological and nuclear: cytoplasmic ratio, adherent-dependent growth, response to chemotherapy drug following differentiation, T3 and T4 measurement, and critical genes expression pattern. Papillary cell line showed more growth inhibition by ATRA, in addition, mesenchymal and spindle-shape of 8305C cells changed to polygonal. Additionally, high nuclear: cytoplasmic ratio of anaplastic decreased significantly. Redifferentiation significantly suppressed the anchorage-dependent growth in the both cell lines in a dose-dependent manner, potentiated the arsenic trioxide (ATO) effects in anaplastic and papillary cell lines. Furthermore, reduction in the expression of stemness, and invasion related genes was observed in the both cell lines. Altogether, ATRA treatment could hold the aggressive behavior of thyroid carcinoma in restraint and/or potentiate the effect of chemotherapy drug ATO.


Subject(s)
Antineoplastic Agents/pharmacology , Cell Differentiation/drug effects , Tretinoin/pharmacology , Antigens, Differentiation/genetics , Antigens, Differentiation/metabolism , Carcinoma , Cell Dedifferentiation , Cell Line, Tumor/drug effects , Cell Nucleus Size , Cell Proliferation/drug effects , Cell Shape/drug effects , Cell Size , Cell Survival/drug effects , Gene Expression , Humans , Thyroid Neoplasms , Thyroxine/metabolism , Triiodothyronine/metabolism
17.
Clin Nucl Med ; 36(4): 277-82, 2011 Apr.
Article in English | MEDLINE | ID: mdl-21368600

ABSTRACT

PURPOSE: Controversies remain over the actual risk of developing a second primary malignancy (SPM) as a consequence of I-131 treatment in patients with differentiated thyroid carcinoma (DTC). The objective of this study was to evaluate the adjusted rate and risk estimate of SPM in radioiodine-treated patients after controlling for confounding factors. MATERIALS AND METHODS: A retrospective cohort study was conducted on 973 cases randomly selected from a population of 9550 radioiodine-treated DTC patients. The cases with prior or coincident nonthyroid malignancies and those with SPM during the first 3 years of the initial I-131 treatment were not included. Age-standardized rate of SPM and its 95% confidence interval (CI) during a median of 6 (3-26) years follow-up in DTC patients was compared with that of the general population. A logistic multivariable analysis was also conducted to identify the potential covariate factors that might influence the risk of SPM. RESULTS: Eleven patients from 7370 person-years at risk developed an SPM. The standardized rate ratio of nonthyroid malignancy was 0.81 (95% CI, 0.57-1.04) for the studied patients relative to the general population. The cumulative dose of I-131 more than 40 GBq (1.08 Ci) was the sole factor associated with increased odds of SPM, after adjusting for age, follow-up duration, histology of DTC, presence of metastasis, and history of external radiotherapy (odds ratio, 113; 95% CI, 8.6-1495.6; P < 0.0001). CONCLUSIONS: The overall rate of SPMs was not significantly increased after a minimum interval of 3 years from the first I-131 treatment; however, the chance of this event may be radically increased in patients who had received a cumulative activity of I-131 exceeding 40 GBq (1.08 Ci).


Subject(s)
Cell Differentiation , Iodine Radioisotopes/adverse effects , Iodine Radioisotopes/therapeutic use , Neoplasms, Radiation-Induced/epidemiology , Neoplasms, Second Primary/epidemiology , Thyroid Neoplasms/pathology , Thyroid Neoplasms/radiotherapy , Adolescent , Adult , Aged , Aged, 80 and over , Child , Cohort Studies , Female , Humans , Male , Middle Aged , Neoplasms, Second Primary/etiology , Retrospective Studies , Risk Assessment , Time Factors , Young Adult
18.
Cancer Biomark ; 5(1): 19-22, 2009.
Article in English | MEDLINE | ID: mdl-19242058

ABSTRACT

OBJECTIVE: Papillary thyroid carcinoma (PTC) is the most frequent types of thyroid malignancies. Several genes may be involved in susceptibility of thyroid cancer including Human Leukocyte Antigens (HLA). The association of thyroid carcinoma with HLA alleles has been previously studied in other populations and certain HLA alleles were shown to be either predisposing or protective. The aim of this study was to determine the association between HLA-C allele frequencies and papillary thyroid carcinoma in an Iranian population. DESIGN: HLA-Cw allele frequencies were determined in patients with papillary thyroid carcinoma (N = 54) and non-related healthy controls (N = 91) using PCR-SSP. MAIN OUTCOME: We found that HLACw4 and HLACw15 allele frequencies were significantly higher in our patients compared to the controls [P = 10-4, OR; 12.5, 95% CI 2.6-116.9) and [P = 10-4, OR; 24.7, 95% CI (3.6-1058) respectively]. CONCLUSIONS: Our results revealed certain HLA-C alleles are predisposing factors in papillary thyroid carcinoma in Iranian population. This confirms the previous findings for association between HLA-C alleles and differentiated carcinomas in other populations.


Subject(s)
Carcinoma, Papillary/genetics , HLA-C Antigens/genetics , Thyroid Neoplasms/genetics , Adult , Carcinoma, Papillary/epidemiology , Case-Control Studies , Female , Gene Frequency , Humans , Iran/epidemiology , Male , Prognosis , Risk Factors , Thyroid Neoplasms/epidemiology
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