Ting-Chung Pun

Queen Mary Hospital, Hong Kong, Hong Kong

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Publications (7)11.03 Total impact

  • European journal of obstetrics, gynecology, and reproductive biology 01/2014; · 1.97 Impact Factor
  • Source
    Siew-Fei Ngu, Vincent Y T Cheung, Ting-Chung Pun
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    ABSTRACT: Our objective was to review the surgical management, surgical outcomes, and obstetric outcomes of adnexal masses in pregnancy. A retrospective review was performed of pregnant women before 20 weeks of gestation who underwent laparoscopy or laparotomy for management of an adnexal mass during the period of January 2005 to June 2012 at a university-affiliated hospital. Thirty-five pregnant women underwent surgical removal of adnexal masses during the 7.5-year study period: 21 (60.0%) underwent laparoscopic surgery, and 14 (40.0%) underwent laparotomy. The left upper quadrant entry technique was used in 20 women. Conversion to laparotomy was required in 2 women because of extensive pelvic adhesions. The mean gestational age at surgery was 15.2 ± 1.9 weeks. All women had undergone ovarian cystectomy. A malignant mass was found in 3 (8.6%) women. The laparoscopy group had a significantly less blood loss (67.4 ± 55.8 vs 153.6 ± 181.0 mL, P = .048) and shorter mean hospital stay (2.8 ± 1.0 vs 3.8 ± 1.1 days, P = .006) than the laparotomy group. One woman miscarried soon after surgery. There was no significant difference in obstetric outcomes between the laparoscopy and laparotomy groups. Surgical management of adnexal masses during pregnancy appears to have favorable outcomes for the mother and the fetus.
    JSLS : Journal of the Society of Laparoendoscopic Surgeons / Society of Laparoendoscopic Surgeons. 01/2014; 18(1):71-5.
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    ABSTRACT: Background Medical abortion in women with the scar of a classical caesarean section (CS) and a large uterine leiomyoma is rarely attempted; it carries the risk of uterine rupture and haemorrhage. Case A 34-year-old multiparous woman with prior classical CS and a 14 × 10 × 9 cm leiomyoma arising from the uterine isthmus had an induced abortion at 14 weeks' gestation. Mechanical cervical priming with Dilapan(®)-S followed by vaginal misoprostol administration resulted in the uncomplicated expulsion of the uterine contents. Conclusions An early second trimester medical abortion with misoprostol was successfully performed in a woman with prior classical CS and a large uterine leiomyoma.
    The European Journal of Contraception and Reproductive Health Care 05/2013; · 1.81 Impact Factor
  • Siew-Fei Ngu, Vincent Y T Cheung, Ting-Chung Pun
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    ABSTRACT: To compare the use of vaginoscopic vs traditional hysteroscopy in evaluation of the endometrial cavity. Prospective, randomized, single blinded, clinical trial (Canadian Task Force classification I). University-affiliated hospital in Hong Kong. Ninety women scheduled to undergo diagnostic hysteroscopy without anesthesia. Women were randomized to undergo either vaginoscopic hysteroscopy using the H Pipelle for endometrial sampling (n = 45) or traditional hysteroscopy using the standard Pipelle (n = 45). Both procedures were performed without anesthesia and using a rigid 4.5-mm hysteroscope. Main outcome measures analyzed were pain scores using a 10-point visual analog scale during hysteroscopy, endometrial biopsy, and overall pain score of the procedure, success and duration of each procedure, and adequacy of the endometrial sample obtained. The success rates for vaginoscopic and traditional hysteroscopy were 93.33% and 100%, respectively (p = .24). There was no significant difference in the mean pain score and procedure duration between the 2 hysteroscopic approaches. Endometrial sampling using the H Pipelle was significantly quicker by about 45 seconds compared with use of the standard Pipelle (mean [SD] duration, 1.46 [0.72] min vs 2.20 [1.19] min, respectively; p = .001), with similar biopsy adequacy. Most women (95.5% in both approaches) found the procedure acceptable. There were no intraoperative or postoperative complications. Vaginoscopic and traditional hysteroscopic approaches are similar in safety, feasibility, and associated pain. Although the time needed to obtain an endometrial sample using the H Pipelle was quicker than with the standard Pipelle, there is no difference in overall procedure duration.
    Journal of Minimally Invasive Gynecology 03/2012; 19(2):206-11. · 1.58 Impact Factor
  • Siew-Fei Ngu, Vincent Y T Cheung, Ting-Chung Pun
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    ABSTRACT: To review the use of the left upper quadrant approach in benign gynecologic laparoscopic surgery over a nine-year period. Retrospective review. Setting. University-affiliated hospital. Women who underwent laparoscopic gynecologic surgery the upper quadrant approach between January 2002 and December 2010. Medical records were reviewed. Demographic data, past surgical histories, indications for surgery and the use of the left upper quadrant approach, intraoperative findings, diagnosis and any complications. 143 patients were identified, accounting for 4.9% of all gynecologic laparoscopic surgery. The indications for using the left upper quadrant approach were: previous open abdominal surgery (113, 79.0%), surgery in the second trimester of pregnancy (16, 11.1%), presence of large pelvic mass (9, 6.2%), previous transverse rectus abdominis myocutaneous flap for breast reconstruction (3, 2.0%), previous periumbilical hernia repair (1, 0.6%) and previous laparoscopic umbilical wound dehiscence (1, 0.6%). In women with previous abdominal surgery, the overall incidence of adhesions between omentum and/or bowel to the anterior abdominal wall in the umbilical region was 58.4%. Twelve (8.3%) patients required conversion to laparotomy. One patient had subcutaneous surgical emphysema over the left upper quadrant entry site. The left upper quadrant approach is an effective, safe and easy technique for peritoneal cavity access in women undergoing laparoscopic gynecologic surgery and should be considered in women with risk factors of periumbilical adhesions and in the presence of a large pelvic mass.
    Acta Obstetricia Et Gynecologica Scandinavica 08/2011; 90(12):1406-9. · 1.85 Impact Factor
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    ABSTRACT: To investigate the effectiveness of a single pre-operative dose of sublingual misoprostol on reducing blood loss in abdominal hysterectomies performed for symptomatic uterine leiomyomas. A cohort of 64 women undergoing total abdominal hysterectomy for symptomatic uterine leiomyomas were randomly assigned to receive a single dose of sublingual 400 mcg misoprostol (n=32) or placebo containing 20mg vitamin B(6) (n=32) 30 min before the operation. The primary outcome was the operative blood loss. The secondary outcomes were requirement for blood transfusion, change in haemoglobin level after operation, and the incidence of side effects. Women who had misoprostol were found to have similar operative blood loss to those who had placebo (570.9 ± 361.3 ml versus 521.4 ± 297.4 ml, for misoprostol and placebo group respectively; P=0.803). This study with a sample size of 64 was sufficient to have 80% power at the 5% level of significance to detect a reduction of blood loss greater than or equal to 30%. There were no observed differences in the need for post-operative blood transfusion (25% versus 15.6%, for misoprostol and placebo group respectively; P=0.536), the change in haemoglobin level after the operation, and the side effects profiles between the two groups. A single pre-operative dose of sublingual misoprostol is not effective in reducing intra-operative blood loss and need for post-operative blood transfusion after total abdominal hysterectomies for symptomatic uterine leiomyomas.
    European journal of obstetrics, gynecology, and reproductive biology 04/2011; 158(1):72-5. · 1.97 Impact Factor
  • Joyce Chai, Ting-Chung Pun
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    ABSTRACT: To assess whether early or immediate removal of a 12F in-dwelling Foley catheter after total abdominal hysterectomy affects the level of subjective pain assessment postoperatively. Randomized controlled trial. University Hospital. Seventy women underwent total abdominal hysterectomies for various benign gynecological diseases. Women were randomized to have the urinary catheter removed in the operating room after the surgical procedure or to have it removed on postoperative day 1. The primary outcome was patients' pain assessment and the secondary outcomes were rate of re-catheterization and symptomatic urinary tract infection. There was no difference in the pain assessment between the two groups. A significantly higher number of urinary retention episodes requiring re-catheterization were found in the immediate removal group compared with the delayed removal group (20 vs. 0%; p= 0.011). The incidence of symptomatic urinary tract infection did not differ between the two groups. There are pros and cons regarding the policy of one-day in-dwelling catheterization compared to immediate catheter removal.
    Acta Obstetricia Et Gynecologica Scandinavica 02/2011; 90(5):478-82. · 1.85 Impact Factor

Publication Stats

7 Citations
11.03 Total Impact Points

Institutions

  • 2011–2014
    • Queen Mary Hospital
      Hong Kong, Hong Kong
    • Lands Department of The Government of the Hong Kong Special Administrative Region
      Hong Kong, Hong Kong
  • 2011–2012
    • The University of Hong Kong
      • Department of Obstetrics and Gynaecology
      Hong Kong, Hong Kong