A Gigantic Uterine Leiomyoma and Big Bilateral Adrenal Myelolipomas as a Result of Untreated Congenital Adrenal Hyperplasia.

INTRODUCTION: Patients with congenital adrenal hyperplasia (CAH) can present early with salt wasting, adrenal insufficiency, and hyperandrogenism. Late consequences as a result of untreated CAH are now rarely seen. We present a patient with a massive uterine leiomyoma and bilateral adrenal myelolipomas due to longstanding treatment noncompliance. CASE REPORT: A female patient with CAH was treated with glucocorticoids until the age of 29 years when they stopped with the intention of identifying as a male. The patient then presented with abdominal pain and distension. Computed tomography images of the abdomen and pelvis revealed a 31 × 35 × 31-cm abdominal mass, a 5.9× 2.4-cm right adrenal mass, and an 11.8 × 8.8-cm left adrenal mass. The patient underwent total hysterectomy and bilateral adrenalectomy. Pathology of the abdominal mass was consistent with uterine leiomyoma, and bilateral adrenal masses were consistent with adrenal myelolipomas. DISCUSSION: The goal of CAH therapy is to provide adequate replacement while reducing adrenocorticotropic hormone and adrenal androgens levels. Due to the conversion of androgens to estrogens, untreated females with CAH have elevated androgen and estrogen levels. High levels of these hormones can stimulate the growth of estrogen-dependent organs as exemplified by our patient. Chronic adrenocorticotropic hormone stimulation can not only cause adrenal hyperplasia but has also been associated with the development of adrenal myelolipomas. CONCLUSION: This case demonstrates the significance of CAH treatment compliance as there are several serious sequela outside of the expected adrenal insufficiency and virilization. Even when the desired effect is virilization, other means of hormonal therapy should be considered.

Successful yolk-sac tumor treatment with fertility-sparing partial oophorectomy.

Yolk-sac tumors account for about 20% of ovarian germ cell tumors and occur predominantly in women below 35 years of age. Modern evidence-based treatment strategies have ensured long term post-treatment survival, but with increased survival, attention has been turned to an urgent need for developing fertility sparing treatment strategies. In this report we describe the successful treatment of a young woman who was able to conceive and deliver two children, in spite of the loss of one ovary two years prior to being diagnosed with an ovarian yolk-sac tumor on the remaining ovary.

Pattern of Care, Health Care Disparities, and Their Impact on Survival Outcomes in Stage IVB Cervical Cancer: A Nationwide Retrospective Cohort Study.

OBJECTIVE: Although locally advanced cervical cancer can be cured, patients with stage IVB disease have poor prognosis with limited treatment options. Our aim was to describe the pattern of care and analyze health disparity variables that may account for differences in treatment modalities and survival in this population. METHODS: The National Cancer Database was queried for patients diagnosed between 2004 and 2013 with metastatic squamous cell carcinoma or adenocarcinoma of the cervix. Codes representing parenchymal and lymphatic metastasis (beyond the para-aortic radiation fields) were used to identify the cohort. Variables included age, race, insurance status, comorbidity, treatment modality, and outcomes. We used Kaplan-Meier methods to compare survival curves and Cox proportional hazards to estimate the association between variables and overall survival (OS). Log-rank method was used to compare Kaplan-Meier curves. RESULTS: There were 4576 patients identified. The majority was white (59.7%); 19.5% were Hispanic, and 9.6% were black. Fifty-one percent had Medicare/Medicaid; 33.7% had private, and 12.5% had no insurance. The majority (56.3%) received chemotherapy (CMT) alone or in combination with radiation therapy (RT) and/or surgery. Median follow-up was 7.3 months (0-124.8 months). Median OS was 11.5 months (10.5-12.5 months). Higher probability of receiving CMT and RT was associated with having private insurance (P < 0.001). Significant prognostic values positively affecting survival on multivariate analysis included black and Asian race, private insurance, comorbidity index of 0, metastatic site at initial presentation (lung), and treatment modality. Patients treated with CMT + RT with or without surgery had significantly better median OS (12 months) compared with those treated with CMT alone (8.3 months), RT alone (4.8 months), or those untreated (2.3 months) (P < 0.001). CONCLUSIONS: Insurance status influences treatment options in patients with distant metastatic cervical cancer. Race, comorbidity index, metastatic site, and suboptimal treatment appear to affect survival outcomes. Regardless of treatment, survival was extremely limited.

Phase II trial of bevacizumab with dose-dense paclitaxel as first-line treatment in patients with advanced ovarian cancer.

OBJECTIVES: To assess the tolerability and efficacy of bevacizumab with carboplatin and weekly paclitaxel as first-line adjuvant therapy for advanced stage ovarian cancer. METHODS: After IRB approval, this single-institution, phase II study enrolled patients with stage III or IV epithelial ovarian cancer after primary cytoreductive surgery to treatment with carboplatin (AUC 5), weekly paclitaxel (80mg/m2), and bevacizumab (15mg/kg) every 3weeks for at least 6cycles. The primary endpoint was tolerability of at least 4cycles of therapy, with a target treatment success rate of >60%. Secondary endpoints included progression-free survival (PFS) and response rate. Plasma biomarkers were analyzed by the multiplex ELISA assays. RESULTS: Thirty-three patients were enrolled with 30 evaluable patients receiving at least one cycle of combination treatment. Twenty-three patients (77%) were able to complete at least 4cycles of therapy per protocol, and the posterior probability that the treatment success rate is >60% is 0.77. Twenty-one patients (70%) were able to complete ≥6cycles of therapy. Median PFS was 22.4months for patients with optimal (R0) compared to 16.9months for optimal≤1cm (HR 1.71, 95% CI 0.58-4.98, p=0.33), and 16.9months for suboptimal>1cm (HR 3.75, 95% CI 1.05-13.34, p=0.04) disease. Increases in mean Flt-3L was significantly higher in responders versus non-responders (83.4 vs. 28pg/mL, p=0.05). CONCLUSIONS: Adjuvant bevacizumab with dose-dense chemotherapy is associated with acceptable toxicity and a high likelihood of completing 4cycles of therapy. Dynamic changes in Flt-3L may represent a predictive marker to treatment response.

The Role of Routine Peritoneal and Omental Biopsies at Risk-Reducing Salpingo-Oophorectomy.

STUDY OBJECTIVE: To assess the potential role of peritoneal and omental biopsies in women undergoing risk-reducing salpingo-oopherectomy (RRSO) for prophylactic management of hereditary breast/ovarian cancer (HBOC) syndromes. DESIGN: A retrospective observational cohort (Canadian Task Force classification II.1). SETTING: An academic gynecology practice. PATIENTS: All women who underwent RRSO for a high-risk BRCA1/2 mutation or deletion at a single institution between January 2003 and June 2016. INTERVENTIONS: After obtaining institutional review board approval, patient demographics, types of surgical intervention, histopathology reports, and outcomes were abstracted. Bilateral fallopian tubes were histologically evaluated using the "sectioning and extensively examining of the fimbriated end" protocol. Descriptive statistics were used to summarize findings. MEASUREMENTS AND MAIN RESULTS: Seventy women underwent RRSO within the study window; 60% (n = 42) carried a high-risk mutation in BRCA1, 37.1% (n = 26) carried a high-risk mutation in BRCA2, and 2.9% (n = 2) had a high-risk BRCA deletion identified by BRAC analysis rearrangement testing (BART). Serous tubal intraepithelial carcinomas were identified in the distal fallopian tube of 3 subjects. In addition to RRSO, subjects underwent pelvic washings (n = 58, 82.9%), omental biopsy (n = 44, 62.9%), peritoneal biopsies of the bilateral paracolic gutters (n = 51, 72.9%), anterior and posterior cul-de-sac (n = 53, 75.7%), and rectosigmoid mesentery (n = 11, 15.7%). Rare atypical cells favoring reactive cells were identified in pelvic washings of 1 subject (1.7%) with histologically normal fallopian tubes. No evidence of atypical mesothelial proliferations or carcinoma was identified in any omental or peritoneal biopsies. The mean duration of follow-up was 32.5 ± 24.7 months. At the last contact, 3 women (4.3%) had died of metastatic breast cancer, whereas another 3 (4.3%) had been diagnosed with a recurrence of their breast cancer. All other subjects were alive and well (n = 64, 91.4%). CONCLUSION: The routine use of peritoneal and omental biopsies for women undergoing RRSO does not appear to improve detection of occult malignancy.

Multidisciplinary team learning in the management of the morbidly adherent placenta: outcome improvements over time.

BACKGROUND: Morbidly adherent placenta (MAP) is a serious obstetric complication causing mortality and morbidity. OBJECTIVE: To evaluate whether outcomes of patients with MAP improve with increasing experience within a well-established multidisciplinary team at a single referral center. STUDY DESIGN: All singleton pregnancies with pathology-confirmed MAP (including placenta accreta, increta, or percreta) managed by a multidisciplinary team between January 2011 and August 2016 were included in this retrospective study. Turnover of team members was minimal, and cases were divided into 2 time periods so as to compare 2 similarly sized groups: T1 = January 2011 to April 2014 and T2 = May 2014 to August 2016. Outcome variables were estimated blood loss, units of red blood cell transfused, volume of crystalloid transfused, massive transfusion protocol activation, ureter and bowel injury, and neonatal birth weight. Comparisons and adjustments were made by use of the Student t test, Mann-Whitney U test, χ2 test, analysis of covariance, and multinomial logistic regression. RESULTS: A total of 118 singleton pregnancies, 59 in T1 and 59 in T2, were managed during the study period. Baseline patient characteristics were not statistically significant. Forty-eight of 59 (81.4%) patients in T1 and 42 of 59 (71.2%) patients in T2 were diagnosed with placenta increta/percreta. The median [interquartile range] estimated blood loss (T1: 2000 [1475-3000] vs T2: 1500 [1000-2700], P = .04), median red blood cell transfusion units (T1: 2.5 [0-7] vs T2: 1 [0-4], P = .02), and median crystalloid transfusion volume (T1: 4200 [3600-5000] vs T2: 3400 [3000-4000], P < .01) were significantly less in T2. Also, a massive transfusion protocol was instituted more frequently in T1: 15/59 (25.4%) vs 3/59 (5.1%); P < .01. Neonatal outcomes and surgical complications were similar between the 2 groups. CONCLUSION: Our study shows that patient outcomes are improved over time with increasing experience within a well-established multidisciplinary team performing 2-3 cases per month. This suggests that small, collective changes in team dynamics lead to continuous improvement of clinical outcomes. These findings support the development of centers of excellence for MAP staffed by stable, core multidisciplinary teams, which should perform a significant number of these procedures on an ongoing basis.

Survivors of gynecologic malignancies: impact of treatment on health and well-being.

PURPOSE: While overall survival from gynecologic malignancies has greatly improved over the last three decades, required treatments can lead to multiple health issues for survivors. Our objective was to identify health concerns that gynecologic cancer survivors face. METHODS: A systematic, stratified sample of women with gynecologic malignancies was surveyed for 18 health issues occurring before, during, or after treatment. The impact of clinical features and treatment modality on health issues was assessed through multivariate logistic regression models. RESULTS: Of 2,546 surveys mailed, 622 were not received by eligible subjects secondary to invalid address, incorrect diagnosis, or death. Thus, 1924 survivors potentially received surveys. Of the 1,029 surveys (53.5%) completed, median age was 59 years; diagnoses included 29% cervical, 26% endometrial, 26% ovarian/primary peritoneal/fallopian tube, 12.1% vulvar, and 5.4% vaginal cancers. The most frequently reported health issues included fatigue (60.6%), sleep disturbance (54.9%), urinary difficulties (50.9%), sexual dysfunction (48.4%), neurologic issues (45.4%), bowel complaints (42.0%), depression (41.3%), and memory problems (41.2%). These rankings were consistent with patients' self-reported rankings of "highest impact" personal issues. After controlling for demographic and clinical variables, multivariate analyses revealed that treatment modality impacted the odds of experiencing a given health issue. CONCLUSIONS: Our study demonstrates that gynecologic cancer survivors experience a high frequency of health conditions and highlights the association between treatment modality and specific health concerns. IMPLICATIONS FOR CANCER SURVIVORS: The study findings highlight the multiple health concerns experienced by gynecologic cancer survivors and suggest the potential for developing interventions to mitigate these concerns in survivorship.

Assessment of sexual activity and dysfunction in medically underserved women with gynecologic cancers.

BACKGROUND: Sexual dysfunction is a common long-term side effect of treatments for gynecologic cancer. Studies of sexual problems in gynecologic cancer survivors overrepresent White non-Hispanic, highly educated, and married women. Less is known about the sexual health needs of women in medically underserved populations. We therefore conducted a study to characterize sexual activity and sexual function in this population. METHODS: We recruited patients attending two gynecologic oncology clinics in a large public healthcare system that primarily serves uninsured and low-income patients. Participants were invited to complete a one-time survey to assess sexual function, sexual communication, sexual distress, relationship adjustment, depression, anxiety, prior help-seeking and help-seeking preferences, and reasons for sexual inactivity. Data were analyzed using descriptive statistics and multivariate models to predict sexual activity status and sexual dysfunction. RESULTS: Among 243 participants, the majority (n=160, 65.8%) were not sexually active in the past 4weeks, most often due to lack of a partner or lack of desire for sex. Just over one-fourth of sexually active participants were identified as likely cases of sexual dysfunction. Greater endorsement of depressive symptoms predicted both sexual inactivity and sexual dysfunction in multivariate analyses. Prior help-seeking for sexual problems was uncommon; however, a significant minority of participants expressed interest in receiving care for sexual problems. CONCLUSIONS: Gynecologic cancer survivors in our medically underserved population have high rates of sexual inactivity and sexual dysfunction. Future research should identify feasible strategies to address barriers to sexual healthcare in low-resource settings.

PAX2 Expression in Ovarian Cancer.

PAX2 is one of nine PAX genes that regulate tissue development and cellular differentiation in embryos. However, the functional role of PAX2 in ovarian cancer is not known. Twenty-six ovarian cancer cell lines with different histology origins were screened for PAX2 expression. Two ovarian cancer cell lines: RMUGL (mucinous) and TOV21G (clear cell), with high PAX2 expression were chosen for further study. Knockdown PAX2 expression in these cell lines was achieved by lentiviral shRNAs targeting the PAX2 gene. PAX2 stable knockdown cells were characterized for cell proliferation, migration, apoptosis, protein profiles, and gene expression profiles. The result indicated that these stable PAX2 knockdown cells had reduced cell proliferation and migration. Microarray analysis indicated that several genes involved in growth inhibition and motility, such as G0S2, GREM1, and WFDC1, were up-regulated in PAX2 knockdown cells. On the other hand, over-expressing PAX2 in PAX2-negative ovarian cell lines suppressed their cell proliferation. In summary, PAX2 could have both oncogenic and tumor suppression functions, which might depend on the genetic content of the ovarian cancer cells. Further investigation of PAX2 in tumor suppression and mortality is warranty.

The anterior gradient homolog 3 (AGR3) gene is associated with differentiation and survival in ovarian cancer.

Low-grade (LG) serous ovarian carcinoma is believed to arise from serous borderline ovarian tumors; yet the progression from serous borderline tumors to LG serous ovarian carcinoma remains poorly understood. The purpose of this study was to identify differentially expressed genes between the 2 groups. Expression profiles were generated from 6 human ovarian surface epithelia, 8 serous borderline ovarian tumors (SBOTs), 13 LG serous ovarian carcinomas, and 24 high-grade (HG) serous ovarian carcinomas. The anterior gradient homolog 3 (AGR3) gene was found to be highly upregulated in serous borderline ovarian tumors. This finding was validated by real-time quantitative reverse-transcription polymerase chain reaction, Western blotting, and immunohistochemistry. Anti-AGR3 immunohistochemistry was performed on an additional 56 LG and 103 HG tissues, and the results were correlated with clinical data. Expression profiling determined that 1254 genes were differentially expressed (P<0.005) among SBOT, LG, and HG tumors. SBOTs exhibited robust positive staining for AGR3, with a lower percentage of tumor cells stained in LG and HG. Immunofluorescence staining indicated that AGR3 expression was limited to ciliated cells. Tumor samples with a high percentage (>10%) of AGR3 positively stained tumor cells were associated with improved longer median survival in both the LG (P=0.013) and HG (P=0.008) serous ovarian carcinoma groups. The progression of SBOT to LG serous ovarian carcinoma may involve the dedifferentiation of ciliated cells. AGR3 could serve as a prognostic marker for survival in patients with LG and HG serous ovarian carcinomas.

Small bowel perforation 17 months after robotic surgery for endometrial cancer: A case report.

► Robotic surgery offers several advantages in the management of endometrial cancer. ► No long-term data exist regarding recurrence in patients undergoing robotic surgery. ► Metastasis or recurrence may result in bowel obstruction post surgery.

Effect of needle length when immunizing obese adolescents with hepatitis B vaccine.

OBJECTIVE: Several studies have noted that obese adolescents and adults achieve lower titers of antibody in response to vaccines such as hepatitis B virus (HBV) vaccine. The objective of this study was to determine whether use of a longer (1.5-in) rather than a standard (1-in) needle to penetrate the thicker deltoid fat pad among obese youth would result in higher antibody titers after immunization against HBV. METHODS: Obese adolescents from a large metropolitan area who had not previously received the HBV vaccine were randomly assigned to be immunized with HBV vaccine by using either a 1-inch or a 1.5-inch needle. RESULTS: Those who were immunized with a 1.5-inch needle achieved significantly higher antibody titers to hepatitis B surface antigen (median titers: 1-inch = 189.8 mIU/mL, 1.5-inch = 345.4 mIU/mL; P = .03). CONCLUSIONS: This finding supports the hypothesis that needle length accounts for a significant portion of the discrepancy in immune response to HBV vaccine that is seen among those with obesity.

Survival after intestinal perforation: can it be predicted?

OBJECTIVE: Intestinal perforation is associated with high morbidity and mortality in gynecologic oncology patients. We investigated potential factors associated with survival after perforation which may influence treatment recommendations. METHODS: A retrospective review of all gynecologic oncology patients experiencing intestinal perforation between 1993 and 2007 was performed. Demographics, cancer history, presenting symptoms, vital signs, laboratory values, and management of perforation were collected, and Acute Physiology and Chronic Health Evaluation II (APACHE II) scores were calculated for each patient. Factors affecting survival from the time of perforation were analyzed using Kaplan-Meier method and univariate and multivariate Cox proportional hazard models. Student's t-test and chi(2) analysis were also utilized to evaluate potential associations. RESULTS: Fifty-three patients met the inclusion criteria. No difference in survival was found based on disease site, history of radiation therapy, presenting symptoms, smoking history, or presence of bowel procedures performed during the most recent abdominal surgery prior to perforation. APACHE II score, disease status, body mass index, and treatment method of perforation were found to be significant prognostic factors for survival. After multivariate Cox regression analysis, only APACHE II scores remained significantly associated with an increased risk of death. Median survival of patients with APACHE II scores <15 was 28.13 months compared to 2.90 months in patients with scores> or =15 (P<0.0001). CONCLUSION: Many factors must be examined when determining the management of intestinal perforation in gynecologic oncology patients. Clinicians should consider the APACHE II score in their assessment to assist risk stratification and treatment planning of these patients.

PAX2 expression in low malignant potential ovarian tumors and low-grade ovarian serous carcinomas.

Ovarian tumors of low malignant potential and low-grade ovarian serous carcinomas are thought to represent different stages on a tumorigenic continuum and to develop along pathways distinct from high-grade ovarian serous carcinoma. We performed gene expression profiling on three normal human ovarian surface epithelia samples, and 10 low-grade and 10 high-grade ovarian serous carcinomas. Analysis of gene expression profiles of these samples has identified 80 genes upregulated and 232 genes downregulated in low-grade ovarian serous carcinomas. PAX2 was found to be one of the most upregulated genes in low-grade ovarian serous carcinoma. The upregulation of PAX2 was validated by real-time quantitative RT-PCR, western blot and immunohistochemical analyses. Real-time RT-PCR showed a statistically significant difference in PAX2 mRNA expression (expressed as fold change in comparison to normal human ovarian surface epithelia) among ovarian tumors of low malignant potential (1837.38, N=8), low-grade (183.12, N=17), and high-grade (3.72, N=23) carcinoma samples (P=0.015). Western blot analysis revealed strong PAX2 expression in ovarian tumors of low malignant potential (67%, N=3) and low-grade carcinoma samples (50%, N=10) but no PAX2 protein expression in high-grade carcinomas (0%, N=10). Using immunohistochemistry, tumors of low malignant potential (59%, N=17) and low-grade carcinoma (63%, N=16) samples expressed significantly stronger nuclear staining than high-grade ovarian carcinoma samples (9.1%, N=263). Furthermore, consistent with earlier immunohistochemical findings, PAX2 expression was expressed in the epithelial cells of fallopian tubes but not in normal ovarian surface epithelial cells. Our findings further support the two-tiered hypothesis that tumors of low malignant potential and low-grade ovarian serous carcinoma are on a continuum and are distinct from high-grade ovarian carcinomas. In addition, the absence of PAX2 expression in normal ovarian epithelia but expression in fallopian tube fimbria and ciliated epithelial inclusions would suggest the potential development of tumors of low malignant potential and of low-grade ovarian serous carcinomas from secondary Müllerian structures.

Biomarker discovery in ovarian cancer.

Ovarian cancer is a leading cause of gynecologic cancer death among women. Tumors diagnosed early (in stage I) have a cure rate approaching 90%. However, because specific symptoms and screening tools are lacking, most ovarian cancers are very advanced when finally diagnosed. CA125 expression and pelvic ultrasonography are of limited efficacy in screening, and the search for new, complementary ovarian cancer biomarkers continues. New technology and research techniques have allowed the identification of over 100 possible tumor markers, many of which are still being evaluated for clinical relevance and several of which have entered clinical trials. Here, we review the methods of biomarker discovery, address the significance and functions of newly identified ovarian cancer tumor markers, and provide further insight into the future of ovarian cancer biomarkers.

Acute colonic pseudoobstruction complicating twin pregnancy: a case report.

BACKGROUND: Acute colonic pseudoobstruction, or Ogilvie's syndrome, is a rare but serious medical and obstetric complication. When diagnosed early, treatment with expectant management or more invasive decompression is often successful. However, if not recognized promptly or managed appropriately, this condition can be fatal. CASE: We present an unusual case of acute colonic pseudoobstruction occurring after management of preterm labor in a monochorionic-diamniotic twin pregnancy at 29 weeks' gestation complicated with twin-twin transfusion syndrome. CONCLUSION: Acute colonic pseudoobstruction should be considered in the differential diagnosis in pregnant women who present with abdominal distention and vomiting.

Successful catheter-directed venous thrombolysis in phlegmasia cerulea dolens.

BACKGROUND: Phlegmasia cerulea dolens is an extremely rare condition caused by complete venous occlusion and often results in tissue necrosis, limb amputation, or death. Treatment options include systemic anticoagulation, systemic thrombolytic therapy, fasciotomy, or surgical thrombectomy. Rare case reports have described the use of catheter-directed thrombolysis in the treatment of this condition. Prompt diagnosis and treatment initiation are important to prevent gangrene, amputation, and ultimately death. CASE: We report two unusual cases of phlegmasia cerulea dolens that presented in patients with aggressive gynecologic malignancies and who were successfully treated with catheter-directed thrombolytic therapy. CONCLUSION: To maximize the opportunity for limb salvage, catheter-directed venous thrombolytic therapy should be considered in the treatment of phlegmasia cerulea dolens that presents in the gynecologic oncology patient.

Human acellular dermal matrix for closure of a contaminated gynecologic wound.

BACKGROUND: Polypropylene mesh for abdominal wall reconstruction increases the risk of postoperative complications in previously irradiated patients or patients with contaminated operative fields. A novel alternative, acellular dermal matrix, easily incorporates into native tissue when used for fascial reconstruction, forming a strong repair with minimal adhesions and lower infection rates. CASE: We describe a patient previously treated with radiation for cervical cancer who presented with a contaminated operative field due to enteral spillage and pelvic infection. Acellular dermal matrix was used as part of a stepwise secondary closure of a large fascial defect in the anterior abdominal wall that was the result of repeated surgical procedures. CONCLUSION: Use of acellular dermal matrix rather than traditional polypropylene mesh should be considered for patients with contaminated or irradiated operative fields.

An evaluation of school-level factors used in a successful school-based hepatitis B immunization initiative.

PURPOSE: To examine the effect of different school-level factors on the percent return of consent or refusal forms, the percent student participation/enrollment rate, and the percent completion rate of all 3 immunizations in the vaccination series in a school-based hepatitis B immunization initiative. METHODS: The Houston Hepatitis B Immunization Initiative (HBII) was conducted from 1998 through 2001 to provide free hepatitis B immunizations to elementary school students in low socioeconomic areas. At the end of each academic school year, the nurse from each school participating in the initiative was asked to complete a survey evaluating the different strategies utilized in each school to aid in the program's success. The effect of different organizational methods on rate of return of consent/refusal forms, participation rates, and immunization completion rates from the program year 1999-2000 was determined using frequencies, Mann-Whitney analyses, Kruskal-Wallis analyses, and Spearman's correlations. RESULTS: An increase in percent return of signed consent/refusal forms was more likely when teachers helped in publicity/promotion (p = .012) and educational packet distribution (p = .041). Additionally, when teachers assumed responsibility for collecting the forms, the percent return of signed consent/refusal forms (p = .018) and the percent of students receiving all 3 vaccines in the series through HBII (p = .030) were more likely to increase. An increase in signed consent/refusal forms returned was also associated with increased rates of student participation in the program for each school. In schools where students helped specifically with educational packet distribution (p = .039), the percent of students receiving at least 1 vaccine dose from the program was more likely to be higher. CONCLUSIONS: The involvement of teachers in vaccination programs is very important for program success, especially in the enrollment and return of consent/refusal form phases of immunization initiatives. Student involvement may empower the students and encourage other students to participate in the program. Future school-based immunization initiatives can utilize these data to incorporate the most effective school-level factors into their programs to maximize the number of students immunized.