Biomedical subjects

C H Yuen

Publications and source records attributed to C H Yuen.

4 recordsLinked to original sources

PubMed2002

Family needs and burdens of mentally ill offenders.

A growing number of research projects have been devoted to the study of needs, burdens and intervention programmes of families of psychiatric patients due to the emphasis on deinstitutionalization and community integration. Although it is noted that burdens for families when looking after a patient with a criminal history are even heavier and more complicated, studies on identifying family needs and burdens for mentally ill offenders have been very limited. This paper reviews literature on family burdens and studies on family needs for psychiatric patients with a forensic history. Methodological problems of available studies are discussed. In addition, a theoretical model that can be used as a conceptual guide for the study of burdens of families of mentally ill offenders is postulated. Directions for further research are discussed.

Cost of Illness↗

PubMed2000

Simple rectovaginal fistulas.

In regard to the causes of simple rectovaginal fistulas (RVF) we examined the methods of diagnosis and the efficacy and outcome of surgical procedures. The study included all of our patients diagnosed with simple RVF between December 1988 and July 1998 (n = 19). Medical charts of these patients were reviewed regarding diagnostic investigations, operative procedure, outcome, and follow-up. The most common cause was obstetric trauma (n = 15, 79%) followed by infection (n = 4, 21%). Eight patients (42%) had undergone anal surgery prior to the development of RVF; two of these had undergone more than one procedure. Endoanal ultrasound was performed in 15 patients and identified the fistula in 11 (73%). A concomitant sphincter injury was visualized in 9 of 15 patients (60%). The most common initial operation performed was an endoanal advancement flap in 12 patients (63%). This operation was performed in combination with a sphincteroplasty in 4 patients, while 3 had sphincteroplasty alone. The mean hospital stay was 3 days (range 1-5). Postoperative morbidity was noted in 5 patients (26%) of and consisted of recurrent fistula and passage of gas per vagina. Surgery was successful in complete resolution of symptoms in 14 cases (74%). Two of the three recurrences were successfully repaired with a repeat endoanal advancement flap, and one is awaiting repair. The mean follow-up for the entire group was 35.8 months (range 6-84). Endoanal advancement flap should be the initial treatment of choice for simple, low rectovaginal fistulas. The procedure can also be employed with expectations of success even after a failed primary repair and should be combined with sphincteroplasty if a coexistent anteriorly based anal sphincter defect is noted either by clinical examination or endoanal ultrasonography.

Adult↗

PubMed1999

Audit of laparoscopic cholecystectomy in a single center.

A continuous audit is required to ensure laparoscopic cholecystectomy (LC) is performed safely in the surgical community in general. A retrospective review of all LC done in a single center was performed. A total of 1,244 LC were attempted. The conversion rate was 12.4%, the complication rate 3.5%, and the bile duct injury rate 0.4%. Forty percent of bile duct injury occurred after conversion. A decreasing trend of complication rate was seen in the early part of the series, then the rate steadied at about 2.5-3%. A higher threshold of conversion may not increase the bile duct injury rate. However, good laparoscopic technique and adequate experience are prerequisites to safe LC.

Bile Ducts↗

PubMed1998

The investigation and management of thyroid nodules--a retrospective review of 183 cases.

The management of the patient with a thyroid nodule remains a clinical challenge because of its risk of malignancy. This is a retrospective audit of 183 patients undergoing thyroidectomy for thyroid nodules at the Queen Elizabeth Hospital, Hong Kong, in 1994. The history, physical examination and investigations done were charted and analysed against the final histopathology of the specimens. Age, sex, symptom duration and nodularity were not associated with malignancy statistically, whereas a nodule hard in consistency was shown to be associated with malignancy (P < 0.05). The sensitivity and specificity of ultrasonography, radionuclide scan and fine-needle aspiration cytology (FNAC) were 71% and 57%, 50% and 43%, and 93% and 60%, respectively. Hence, history and physical examination are unreliable for detecting malignant thyroid nodules and FNAC is mandatory. FNAC is superior to ultrasonography or radionuclide scan for evaluating thyroid nodules and should be used as the initial investigation.

Adenoma↗