INTRODUCTIONThe aim of this study was to conduct an audit of the sensitivity and specificity of ultrasound, fi ne needle aspiration cytology (FNAC) and frozen section in the evaluation of thyroid malignancies in our practice.

MATERIALS AND METHODSThe medical records of all the patients who underwent thyroid surgery in a tertiary institution's General Surgery Department between January 2005 and December 2007 were retrospectively reviewed using a standardised data collection template. Results of the ultrasounds, FNACs and frozen sections were compared with the fi nal histological diagnosis.

RESULTSA total of 112 patients underwent thyroid surgery in the 3-year study period. Thyroid malignancy constituted 34 (30%) of all patients who underwent thyroid surgery. The most popular diagnostic tools used were ultrasound (81%), FNAC (69%) and frozen section (59%). The sensitivity of ultrasound, FNAC and frozen section were 41.4%, 86.4% and 68.8%, respectively. FNAC was shown to be a superior diagnostic test in detecting malignancy compared to ultrasound. FNAC was able to pick up 53% of thyroid cancers missed by ultrasound. Frozen section was able to pick up 33% of thyroid cancers that were missed by both ultrasound and FNAC.

CONCLUSIONFNAC is the most reliable tool in detecting malignancies and ought to form the mainstay for investigation of thyroid nodules. The utilisation of ultrasonographic features in the evaluation of thyroid nodules might not necessary improve the detection rate of thyroid malignancy. Frozen section helps to improve the detection rate of thyroid malignancy but further studies into its cost-effectiveness ought to be performed.

Adult ; Biopsy, Fine-Needle ; Female ; Frozen Sections ; Humans ; Male ; Medical Audit ; Middle Aged ; Sensitivity and Specificity ; Thyroid Neoplasms ; diagnostic imaging ; pathology ; Ultrasonography

INTRODUCTIONLocal data comparing laparoscopic appendicectomy (LA) and open appendicectomy (OA) is lacking. We perform a cost and outcome comparison between LA and OA.

MATERIALS AND METHODSA retrospective review of all appendicectomies performed for suspected appendicitis from July 2010 to December 2010 was conducted. Patient demographics, duration of surgery, complication rates, total cost of stay (COS) and length of stay (LOS) were compared between LA and OA.

RESULTSA total of 198 patients underwent appendicectomy during the duration of study; 82 LA and 116 OA. There were 115 males (58.1%) and 83 females (41.9%). Median age was 33 years. Patients who underwent LA were significantly younger (P <0.001) with a greater proportion of females (P <0.0001) and were more likely to be negative appendicectomies (18.3% vs. 6.9%, P = 0.023). Duration of surgery was significantly longer in LA patients (86 min vs. 74 min, P = 0.003). LOS in the LA group was shorter by 1.3 days compared to OA (2.0 days vs. 3.3 days, P <0.0001). The differences in operative duration and LOS between LA and OA remained significant on multivariate analysis (P = 0.001 and P = 0.008, respectively). The COS (P = 0.359), wound infection rates (P = 0.528) and complication rates (P = 0.131) were not significantly different between the 2 groups.

CONCLUSIONLA is associated with a shorter LOS while its cost is equivalent to OA. From the perspective of utilisation of healthcare resources, LA appears to be superior.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Appendectomy ; economics ; methods ; Costs and Cost Analysis ; Female ; Humans ; Laparoscopy ; Length of Stay ; Male ; Middle Aged ; Retrospective Studies ; Treatment Outcome ; Young Adult