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Leung-To Yuen

Publications and source records attributed to Leung-To Yuen.

9 recordsLinked to original sources
PubMed2006

Use of laparoscopic cytoreductive surgery to treat infertile women with localized adenomyosis.

OBJECTIVE: We report on two infertile women with localized adenomyosis who had successful pregnancies after treatment with laparoscopic cytoreductive surgery. DESIGN: Case report. SETTING: Tertiary care university hospital. PATIENT(S): Two infertile women with localized adenomyosis. INTERVENTION(S): Laparoscopic excision of adenomyotic lesion with/without subsequent hypoestrogenic agent was performed. MAIN OUTCOME MEASURE(S): Pregnancy. RESULT(S): Hypoestrogenic agent with danazol was administered 3 months immediately after surgery in one woman. Both women conceived spontaneously at 30 and 21 months after surgery, respectively. The pregnancies were uneventful, and healthy infants were delivered via cesarean section at term. CONCLUSION(S): Laparoscopic cytoreductive surgery can be an alternative treatment to the use of hypoestrogenic agents or hysterectomy in women with localized adenomyosis, especially for those who want to maintain their fertility and achieve successful pregnancies. Patients may wait up to 21 months after surgery until a pregnancy occurs.

Adult↗
PubMed2006

Endoscopic management of cesarean scar pregnancy.

OBJECTIVE: To describe our experiences with the diagnosis and endoscopic treatment of cesarean scar pregnancy. DESIGN: Prospective clinical study. SETTING: Tertiary care university hospital. PATIENT(S): Eleven women treated in our division between 1999 and 2004 who had been diagnosed with cesarean scar pregnancy. INTERVENTION(S): Transvaginal ultrasound was used for diagnosis, and endoscopy (laparoscopy and/or hysteroscopy) was used to treat cesarean scar pregnancy and preserve fertility. MAIN OUTCOME MEASURE(S): Operative blood loss, hospital stay, and time to resolution of serum beta-hCG were recorded. RESULT(S): The gestational age at diagnosis ranged between 6 and 11 weeks. Laparoscopic treatment was used in four women, hysteroscopic treatment in six women, and one woman underwent combined treatment with laparoscopy and hysteroscopy. The average blood loss during surgery was 110.9 mL (range, 20-300 mL), and average hospital stay was 1.7 days (range, 0.25-3 days). No complications occurred, and no blood transfusion was required. All patients' uteri were successfully preserved, and serum beta-hCG levels declined to a normal limit within 4 weeks postoperatively. CONCLUSION(S): When the diagnosis of cesarean scar pregnancy is made in the first trimester, endoscopy can be an alternative surgical treatment; the prognosis is good, and fertility can be preserved.

Adult↗
PubMed2005

Laparoscopic-assisted vaginal subtotal hysterectomy.

BACKGROUND: A novel approach in combined laparoscopic and vaginal procedures through the posterior cul-de-sac for subtotal hysterectomy is introduced. PATIENTS AND METHODS: Twenty-one women with menometrorrhagia, symptomatic adenomyosis, or uterine myomas were enrolled in this study. After laparoscopic dissection of bilateral round ligaments and adnexa, a guiding suture brought the uterine fundus down through the posterior cul-desac into the vagina via a posterior colpotomy. Subtotal hysterectomy and hemostasis of the cervical stump were then performed transvaginally by conventional techniques and equipment. RESULTS: Mean operative time, blood loss, and length of hospital stay were 111.2 +/- 28.8 minutes, 252.4 +/- 147.9 mL, and 3.2 +/- 0.9 days, respectively. No patients developed serious complications, but 1 patient had a postoperative stump infection and was treated with 2 combined antibiotics, uneventfully. CONCLUSION: A combined laparoscopic and vaginal approach in performing subtotal hysterectomy through the posterior cul-de-sac is an alternative to a purely laparoscopic approach.

Anti-Bacterial Agents↗
PubMed2005

Comparison of the efficacy of the pulsed bipolar system and conventional bipolar electrosurgery in laparoscopically assisted vaginal hysterectomy.

BACKGROUND: We compared the safety and effectiveness of the pulsed bipolar system (PlasmaKinetic; Gyrus Medical, Maple Grove, MN) and conventional electrosurgery (Kleppinger bipolar forceps; Richard Wolf Instruments, Vernon Hills, IL) in laparoscopically assisted vaginal hysterectomy (LAVH). PATIENTS AND METHODS: In this prospective, nonrandomized study, 62 women with benign gynecologic diseases scheduled for LAVH were divided into two groups: one group underwent LAVH with the pulsed bipolar system and the second group underwent LAVH with conventional electrosurgery. Outcome measures for both groups were compared in terms of length of operative time, amount of blood loss, requirement of blood transfusion, and length of hospital stay. RESULTS: The mean operative time (87.6+/-28.1 minutes vs. 93.4+/-20.2 minutes, P=0.368), blood loss (196.8+/-143.7 mL vs. 253.2+/-125.8 mL, P=0.105), and blood transfusion rate (3.2% vs. 6.5%, P=1.0) were slightly greater in the conventional electrosurgery group than those in the pulsed bipolar system group, although these differences were not statistically significant. The mean length of hospital stay was similar in both groups (3 days). No patients developed serious complications related either to conventional electrosurgery or to the pulsed bipolar system. CONCLUSION: Our findings indicate that the pulsed bipolar system is as safe and effective as conventional electrosurgery, and may offer an alternative option for patients undergoing LAVH.

Adult↗
PubMed2004

A simplified method to decrease operative blood loss in laparoscopic-assisted vaginal hysterectomy for the large uterus.

UNLABELLED: STUDY OBJECTIVE. To evaluate the role of oxytocin in decreasing operative blood loss in laparoscopic-assisted vaginal hysterectomy (LAVH) for the large uterus (weight > or = 500 g). DESIGN: Prospective clinical study (Canadian Task Force classification II-2). SETTING: Tertiary care university hospital. PATIENTS: Eighty-eight women scheduled for a hysterectomy for large benign uterine tumors. INTERVENTION: Two ampules of oxytocin (10 u/mL/amp) were added to 1000 mL of saline solution running at the rate of 40 mU/min during the course of LAVH. MEASUREMENTS AND MAIN RESULTS: Blood loss and blood transfusion rate were significantly greater in the group without oxytocin infusion (group B) than in the group with oxytocin infusion (group A), with 485.7 +/- 321.6 mL versus 364.1 +/- 173.2 mL (p <.05) and 26.7% versus 6. 1% (p <.05), respectively. There was no significant difference in average age, body weight, and number of vaginal deliveries and cesarean sections between the two groups. There also was no significant difference in mean uterine weight, postoperative stay, and complications between the two groups. CONCLUSION: Oxytocin infusion can cause uterine contractions that decrease uterine perfusion. It is a safe and inexpensive method to help decrease operative blood loss during LAVH for the large uterus.

Adult↗
PubMed2004

Three-dimensional power Doppler ultrasound diagnosis and laparoscopic management of a pregancy in a previous cesarean scar.

An ectopic pregnancy developing in a previous Cesarean section scar is a rare event, and there is still a lack of information concerning the adequacy of management strategies. So far, no modality can guarantee the integrity of the uterus. We report the case of a 29-year-old woman with three Cesarean deliveries who was transferred to our hospital with a diagnosis of cervical pregnancy. Transvaginal three-dimensional power Doppler ultrasound revealed a well-encapsulated bulging mass displacing anteriorly over the lower anterior uterine wall sounding with an irregular course and branching vessels. The diagnosis of pregnancy in a previous Cesarean scar was made. Laparoscopic ligation of bilateral uterine arteries followed by excision of the ectopic pregnant mass was undertaken, and the patient's uterus was successfully preserved. Conservative management with the laparoscopic approach may be a safe and effective alternative to hysterectomy in patients with a pregnacy in a previous Cesarean scar.

Adult↗
PubMed2002

Trocar-assisted sling suspension for stress urinary incontinence.

STUDY OBJECTIVE: To introduce a new approach in trocar-assisted sling suspension (TASS) for genuine stress incontinence. DESIGN: Prospective, observational study (Canadian Task Force classification II-2). SETTING: University-affiliated hospital. PATIENTS: Twenty-four women with genuine stress incontinence. INTERVENTION: TASS. MEASUREMENTS AND MAIN RESULTS: After standard preparation and under general endotracheal anesthesia, the periurethral space and thicker part of pubocervical fascia was opened from the vagina. An 0.5-cm incision was made on both sides of the lower abdomen 4 cm lateral to the linea alba and 2 to 3 cm above the pubic bone. A trocar was used to penetrate the incision site to the space of Retzius. A folded polypropylene mesh, 2 cm wide and 30 cm long, inside the vagina was pulled outside the trocar with laparoscopic forceps. All procedures were completed as planned. Average blood loss was less than 50 ml and operating time was 20 to 90 minutes. One woman had voiding difficulty and two had detrussor instability, but no bladder injury occurred (overall complication rate 12.5%). At 2-year follow-up, 23 of 24 women were satisfied with the results. CONCLUSION: TASS is a feasible surgical procedure for managing stress incontinence. Since urinary incontinence surgery is usually combined with other gynecologic procedures, the laparoscopic trocar that is used during TASS can be used for concurrent surgery.

Adult↗
PubMedDate not supplied

A prospective comparison of morcellator and culdotomy for extracting of uterine myomas laparoscopically in nullipara.

We compare the removal of uterine myomas in 78 nulliparous women identified by ultrasound during laparoscopic myomectomy through culdotomy or by use of a power morcellator. Patients were divided into two groups. The culdotomy group was significantly longer. There were no significant differences in tumor size, total specimen weight, patient body weight, total operating time, blood loss, and postoperative stay between each group. Uterine myomas can be removed successfully through either port site in nullipara; however, because of reduced removal time, the power morcellator is preferred.

Adult↗