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Endometrial biopsy using the Tao Brush method. A study of 50 women in a general gynecologic practice

Yang GC; Wan LS
OBJECTIVE: To test whether the Tao Brush can retrieve sufficient endometrium for diagnosis and also to observe patients' tolerance of its use. STUDY DESIGN: Fifty women underwent Tao Brush sampling: 25 were sampled by Tao Brush alone, and the remainder were sampled by Pipelle immediately following. Patients' reactions to each method were observed. RESULTS: Pipelle currettes larger pieces of endometrium; the Tao Brush obtains smaller pieces. There was no discrepancy between Tao Brush and Pipelle except that Pipelle sampled two of five endometrial polyps, while the Tao Brush sampled none. There was less tissue insufficient for diagnosis with the Tao Brush (2%) than Pipelle (12%). Most patients did not show signs of distress during Tao Brush sampling but grimaced during Pipelle suction curettage. For each of the 16 patients in the second group, the Tao Brush was significantly less painful than Pipelle (P < .01). CONCLUSION: Our data suggest that the Tao Brush is an effective alternative endometrial sampler, causes less pain and produces less tissue insufficient for diagnosis than does the Pipelle. The CPT billing codes (58100) are the same for both the Pipelle and Tao Brush
PMID: 10710740
ISSN: 0024-7758
CID: 8541

The antiviral agents, MAP30 and GAP31, are not toxic to human spermatozoa and may be useful in preventing the sexual transmission of human immunodeficiency virus type 1

Schreiber CA; Wan L; Sun Y; Lu L; Krey LC; Lee-Huang S
OBJECTIVE: To investigate the effects of two virucidal compounds, MAP30 (Momordica anti-human immunodeficiency virus [HIV] protein; molecular weight, 30 kd) and GAP31 (Gelonium anti-HIV protein; molecular weight, 31 kd), obtained from Momordica charantia and Gelonium multiflorum, respectively, on the motility and vitality of human spermatocytes. DESIGN: Prospective, controlled study. SETTING: New York University School of Medicine. PATIENT(S): Ten healthy men undergoing evaluation for infertility provided 10 semen specimens. INTERVENTION(S): Human sperm were treated with the anti-HIV agents, MAP30 and GAP3 1. Nonoxynol-9, a commonly used spermicide, and phosphate-buffered saline were used as the positive and negative controls, respectively. MAIN OUTCOME MEASURE(S): The motility and vitality of human spermatocytes treated with MAP30 and GAP31 at doses that inhibit HIV-1 and herpes simplex virus. RESULT(S): MAP30 and GAP31 did not inhibit the motility or vitality of human sperm cells over a dose range of 100-0.1 microg/mL, whereas nonoxynol-9 demonstrated spermicidal action on all 10 samples over the same dose range. CONCLUSION(S): The antiviral agents, MAP30 and GAP31, were not toxic to human sperm cells at the doses at which they inhibit HIV-1 and herpes simplex virus. They had no effect on the motility of spermatozoa, even at a dose of 1,000 times the maximum effective concentration. These results indicate that MAP30 and GAP31 may be useful as nonspermicidal protection against sexually transmitted diseases
PMID: 10521111
ISSN: 0015-0282
CID: 11946

A new endometrial biopsy device and evaluation algorithm

Del Priore, Giuseppe; Wan, Livia S; Harbatkin, Carrie B; Yang, Grace CH
BIOSIS:199900332427
ISSN: 0090-8258
CID: 15906

Levonorgestrel capsule implants in the United States: a 5-year study

Sivin I; Mishell DR Jr; Darney P; Wan L; Christ M
OBJECTIVE: To measure effectiveness, adverse event experience, and acceptability of the Food and Drug Administration-approved variant of levonorgestrel capsule implants in the United States through 5 years and to examine determinants of these outcomes. METHODS: In a prospective, multicenter study, 511 sexually active women selecting contraceptive implants were monitored four times in the 1st year, then semiannually through 5 years. Adverse events were elicited by query and physical examination, and their incidence was measured. Lifetable analyses computed pregnancy and other discontinuation rates. Cox regression models examined effects of age, parity, and preadmission desire for more children on continuation. Removal times were analyzed by analysis of variance. RESULTS: Three pregnancies occurred, yielding a 5-year cumulative rate of 1.3+/-0.8 per 100 users, an average annual rate of three per 1000 women, and an ectopic pregnancy rate of 0.6 per 1000 woman years. No pregnancies occurred to women weighing less than 79 kg. Prolonged or irregular menstrual bleeding, followed distantly by headache, weight gain, and mood changes, was the most frequent medical conditions leading to removal. Weight gain averaged 1 kg per year. Each annual continuation rate was above 80 per 100, for a cumulative 5-year rate of 39 per 100. Continuation was age-dependent, with younger women (younger than 25 years at entry) having lower 5-year continuation rates than older subjects (P < .01). Tissue trauma from deeply placed or poorly aligned implants or severe reactions to local anesthetic affected subjects in 3.1% of removals (nine cases). CONCLUSION: As measured by annual continuation rates of 80 per 100 or higher and annual pregnancy rates below one per 100, implant contraception in the United States was found to be highly acceptable and effective, year after year, regardless of the woman's age or family formation status. The cumulative 5-year pregnancy rate, 1.3 per 100, is comparable to that of tubal ligation
PMID: 9721766
ISSN: 0029-7844
CID: 57260

Compact cell blocks. Use for body fluids, fine needle aspirations and endometrial brush biopsies

Yang GC; Wan LS; Papellas J; Waisman J
OBJECTIVE: To obtain an ideal cell block wherein the maximal number of cells are displayed within the smallest area on the block surface. STUDY DESIGN: Cyto-Rich Red (AutoCyte, Inc., Elon College, North Carolina, U.S.A.) is added to fresh cellular sediment in a centrifuge tube at a ratio of 1:1. After two minutes, three to four drops of plasma and topical thrombin (5,000 U/10 mL) is added. The tube is then gently agitated for two minutes, until a gelatinous clot is obtained. The clot is then slid onto a lens tissue on top of paper towels. The lens tissue is folded once over the clot. By gently squeezing the excess fluid from it through the lens tissue into the paper towels, the clot is transformed into a flat, compact, densely cellular aggregate, which is painted with mercurochrome prior to fixation in formaldehyde. RESULTS: From each of the 495 cases, including 250 body cavity fluids, 170 fine needle aspirates and 75 endometrial brush biopsies, processed with the above protocol, there was a compact cell block containing packed cells or tissue fragments in a clean background devoid of red blood cells. CONCLUSION: The compact cell block is about 10-20% the size of a conventional cell block, yet more cells are on display, thus reducing the need for deeper cuts and screening time while increasing the efficiency of cytodiagnosis. The compact cell block technique is particularly helpful for endometrial brush biopsies
PMID: 9622691
ISSN: 0001-5547
CID: 7950

A review of the endometrial changes in Norplant users

Wan LS
PMID: 9329828
ISSN: 0077-8923
CID: 12258

Rapid T2-weighted MR imaging of uterine leiomyoma and adenomyosis

Krinsky G; DeCorato DR; Rofsky NM; Flyer M; Earls JP; Ambrosino M; Wan L; Weinreb JC
BACKGROUND: To compare three rapid T2-weighted pulse sequences with high-resolution turbo spin-echo (SE) magnetic resonance (MR) imaging for the diagnosis of leiomyoma and adenomyosis. METHODS: Eighteen patients referred for evaluation of suspected leiomyoma or adenomyosis underwent imaging at 1.5 T with a phased-array multicoil. Non-breath-hold, fat-saturated sagittal images of 4-7 mm, with equivalent voxel size, were obtained through the pelvis with the following three rapid pulse sequences: segmented, half-Fourier single shot turbo SE (HASTE), turboGRASE (TGSE) and turbo SE MR images. Mean acquisition times were 17 s (HASTE), 37 s (TGSE), and 42 s (turbo SE). These images were compared, in a blinded fashion, to high resolution turbo SE MR images, which are considered the 'standard' for pelvic MRI. RESULTS: The three rapid pulse sequences, HASTE, TGSE and turbo SE, provided equivalent diagnostic information when compared with high-resolution turbo SE MR images. There was no significant difference in image quality, detection and localization of leiomyoma or in diagnosis of adenomyosis among the three rapid sequences. HASTE imaging demonstrated the least ghosting. CONCLUSION: Diagnostic T2-weighted images of benign uterine pathology may be obtained in as little as 17 s
PMID: 9233895
ISSN: 0942-8925
CID: 7187

Alterations in endometrial stromal cell tissue factor protein and messenger ribonucleic acid expression in patients experiencing abnormal uterine bleeding while using Norplant-2 contraception

Runic R; Schatz F; Krey L; Demopoulos R; Thung S; Wan L; Lockwood CJ
A high incidence of irregular uterine bleeding is the primary patient complaint limiting the utility of long term, progestin-only contraceptive agents such as Norplant. The onset of hemorrhage requires both inadequate hemostasis and impaired vascular integrity. Thus, we first tested whether Norplant-associated endometrial bleeding was accompanied by altered expression of perivascular stromal cell tissue factor (TF), the primary initiator of hemostasis. Norplant effects on TF messenger ribonucleic acid (mRNA) and protein expression by endometrial stromal cells were assessed by in situ hybridization and immunohistochemical examination of endometrial biopsies obtained from normally cycling control women (n = 14) and from patients experiencing Norplant-induced abnormal uterine bleeding (n = 24). TF mRNA and protein expression was increased 150% in secretory vs. proliferative phase endometrial specimens. By contrast, endometrial TF mRNA and protein levels were reduced during 1-6 months of Norplant treatment by about 2-fold (P < 0.05 for protein) compared to the values for control secretory phase specimens. These changes were consistent with observations that patients on Norplant begin to bleed during this interval. Further reductions of TF mRNA and protein levels to 2- and 3-fold of those in secretory phase control specimens were observed in endometria obtained after 6-12 months of Norplant therapy (P < 0.05 and P < 0.01, respectively). A modest rebound in TF mRNA and protein expression was observed after 12 months of Norplant therapy, which occurred commensurate with reduced patient complaints of abnormal uterine bleeding. Pathologically enlarged venous sinusoids were ubiquitous in endometrial specimens obtained after Norplant therapy. The combination of fragile blood vessels and reduced TF expression may account for bleeding in patients receiving Norplant therapy
PMID: 9177417
ISSN: 0021-972x
CID: 12314

Clinical performance of a new two-rod levonorgestrel contraceptive implant: a three-year randomized study with Norplant implants as controls

Sivin, I; Viegas, O; Campodonico, I; Diaz, S; Pavez, M; Wan, L; Koetsawang, S; Kiriwat, O; Anant, M P; Holma, P; el din Abdalla, K; Stern, J
In a randomized three-year clinical trial at seven clinics, the performance of levonorgestrel rod (LNG ROD) implants used by 600 women was compared with that of soft tubing NORPLANT implants used by 598 women. No pregnancies occurred in either group of women and, accordingly, body weight did not affect the efficacy of either type of implant. There were neither statistically significant nor important differences in termination rates for any reason over the three years. Complaint and illness rates during use of either of the two implant types were statistically indistinguishable and were attributable to the same set of conditions. Seventy-one per 100 of the women using each implant regimen continued to the three-year point, for an average annual continuation rate of 89 per 100. Removals of LNG ROD implants were accomplished in about half the time required for removal of Norplant capsule implants (p < 0.001).
PMID: 9071515
ISSN: 0010-7824
CID: 4049902

The American, British and Dutch responses to unlinked anonymous HIV seroprevalence studies: an international comparison

Bayer, R; Lumey, L H; Wan, L
PMID: 1779690
ISSN: 0277-8459
CID: 137296