Objective To evaluate the efficacy of hysteroscopic resection of submucous fibroids. Design A retrospective study of 99 cases. Setting Shanghai Institute of Planned Parenthood Research, Shanghai First Maternity and Infant Health Hospital and the Shanghai Jiading Gynaecological Endoscopy Centre. Subjects The study included 99 patients with submucous fibroids. Out of these, 84 had menorrhagia, 13 had menorrhagia with irregular bleeding and two had postmenopausal bleeding. Interventions Transcervical hysteroscopic resection was used to treat submucous myoma in all patients on one or two occasions. All patients were followed up, for between 6 months and 6 years. Those patients who desired a child underwent hysteroscopic tubal catheterization and hydrotubations to check whether the shape of the uterine cavity recovered after surgery. Results In 94 out of 99 patients, the menstrual pattern became normal; five patients remained hypermenorrhoeic. Two patients were treated with endometrial ablation using a thermal balloon, because of retained myoma within the uterine wall and persistent hypermenorrhoea. Both of these patients experienced hypomenorrhoea for more than 12 months. Only one patient required hysterectomy after 34 months, because of a retained intramural myoma, which had enlarged and caused a recurrence of her menorrhagia. Seven out of the 12 women who desired a child became pregnant. Conclusion Hysteroscopic resection is an effective method for the treatment of submucous fibroids and could replace hysterectomy for some patients. It can shorten the operation time and patients can recover more quickly. For those patients who desire a child, this technique is not only organsparing, but also avoids the intra-abdominal adhesions induced by laparotomy.Correspondence
Objective To evaluate the efficacy of hysteroscopy for diagnosis and treatment of missing intra‐uterine devices (IUDs). Design A retrospective study of 274 patients. Setting Shanghai Institute of Planned Parenthood Research, Shanghai Jiading District Gynaecological Endoscopy Centre and Shanghai First Maternity and Infant Health Hospital. Subjects 274 patients with missing IUDs, who had previously undergone up to four unsuccessful attempts at IUD removal, were included in our study. Among them, 45 patients had been menopausal for more than 1 year. Interventions Hysteroscopy was used to detect and/or remove the missing IUDs or their broken pieces in all patients. Results In 237 out of 274 patients with missing devices, the IUDs or their broken pieces in the uterine cavity were detected by hysteroscopy. In 236 out of these 237 patients, the IUDs or their broken pieces were removed successfully under hysteroscopic view or after hysteroscopic location. In one case only a small piece of the IUD remained in the uterine wall because of breakage during extraction. The IUDs of the remaining 37 patients were not found in the uterine cavity: in 13 patients there was expulsion of IUDs; in two there were broken pieces embedded in the uterine wall; 14 patients had IUDs removed by laparoscopy, and eight IUDs were removed by laparotomy. Conclusion Our study indicates that hysteroscopy, sometimes with an ultrasound B‐scan or laparoscopic guide, is of great value not only for precise locating of the IUD, but also for its removal under direct vision, particularly in the management of patients with broken and/or embedded IUD pieces.
A kind of MELP vocode is designed based on DSP TMS320VC5509A in this article. Firstly, it expatiates the MELP algorithm,then the idea of modeling and realization process on DSP based is proposed. At last we can complete the function simulation of the encoding and decoding system,and the experiment result shows that the synthetical signals fit well with the original ones, and the quality of the speech got from the vocoder is good.
Objectives To document clinical and surgical experience in a large series of hysteroscopic myomectomies performed using the Versapoint system in a normal saline field, and to determine the outcomes with regard to excessive uterine bleeding. Design Prospective clinical study. Setting Jiading Hospital for Maternal and Infant Health, Shanghai, China. Subjects 94 women, mainly with a complaint of heavy bleeding, who underwent hysteroscopic resection of submucous myomas. Result All the scheduled procedures were completed using the new device. No complications occurred. The mean operating time was 26.12 ± 12.40 min. The mean amount of distension fluid used was 2511.90 ± 2145.65 ml. The time in the operating room and the amount of distension fluid used were related to fibroid size. After a mean follow‐up of 16.60 ± 10.29 months, there was recurrence of myoma in four women. The effectiveness rate was 93.94% at 24 months after operation. Conclusion The Versapoint system is safe, effective and easy to use for removal of fibroids whose greatest diameter is within the uterine cavity and which are of size less than or equal to 3 cm.
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