Browsing by Author "Suraweera, P.H.R."

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Electrogastrography (EGG) and gastric motility: an investigation to evaluate gastric emptying in those who undergo oesophago -gastric anastomosis without a pyloroplasty
(Sri Lanka Medical Association, 1998) Samarasekera, D.N.; Suraweera, P.H.R.; de Silva, H.J.; Dissanayake, A.S.
INTRODUCTION: EGG is a non-invasive technique of recording gastric myoelectrical activity by placing electrodes on the abdomen. Objectives : The aim of this study was to assess the myoclcctrical activity of the stomach following ocsophago-gastric anastomosis without a pyloroplasty and also to correlate the values with those who develop symptoms of gastric stasis. DESIGN,SETTING AND METHODS : We present the initial results of an ongoing study. EGG results of six patients (M:F=5: 1) with carcinoma of the oesophagus who underwent transhiatal oesophagectomy were analysed. Mean age was 56y (range 45-76). EGG was performed preoperatively and three months after surgery using computerised digitrapher EGG (Syncctics, UK). One patient complained of symptoms of gastric stasis and reflux and did not respond to therapy with prokinetic agents. She underwent subsequent pyloroplasty and is asymptomatic at present. RESULTS : All patients showed normal preoperative myoelectrical activity (mean - + 131.17 mv) and motility. Postopcratively all patients showed bradygastria and low myoelectrical activity. Postoperative myoelectrical activity in the asymptomatic group showed a value which was positive (mean - +94.12mv) compared to the symptomatic patient who had a persistent mean negative value (- 89.34 mv). CONCLUSIONS : Persistent negative amplitude in the EGG postoperatively may indicate severe gastric stasis. This may be due to poor contractiliy of the denervatcd stomach in some patients. Therefore pyloroplasty should be considered before these patients develop complications of stasis and reflux.
The Prevalence of colorectal cancer and survival in patients from the Gampaha District, North Colombo region
(Sri Lanka Medical Association, 2008) Perera, T.; Wijesuriya, S.R.E.; Suraweera, P.H.R.; Wijewardene, K.; Kumarage, S.K.; Ariyaratne, M.H.J.; Deen, K.I.
INTRODUCTION: The prevalence and survival of colorectal cancer in Sri Lankans has not been previously reported. We did a retrospective and a prospective survey, in the region of North Colombo, Sri Lanka between 1992 and 2004. The aim was to study cancer burden, sites of colorectal cancer and survival after surgery. PATIENTS AND METHODS: The records of 175 patients with colorectal cancer between 1992 and 1997 in the selected region of were analysed retrospectively. A prospective study was performed in 220 new patients with colorectal cancer between 1996 and 2004. Data evaluated were demographics, tumour stage and survival. RESULTS: Between 1992 and 1997 the crude annual incidence of colorectal cancer was 1.9 per 100,000, which increased over the years. The current national crude annual incidence is 3.2 per 100,000 in women and 4.9 in men. Median age at presentation was 60 years with similar prevalence of cancer in men and women. In the entire group, 28% of cancers were in those less than 50 years old. Survival at 2 and 5 years was 69% and 52%. The majority of cancer related deaths were within the first 2 years after surgery. CONCLUSION: The burden of colorectal cancer in Sri Lanka is on the rise. Up to a third of cancers occur in those under 50 years, and the majority of cancers are in the rectum or rectosigmoid region. Flexible sigmoidoscopy offers a useful screening tool.
Prolapsed haemorrhoids and anorectal manometry - do haemorrhoids prolapse due to reduction in the anorectal pressures ?
(Sri Lanka Medical Association, 1998) Samarasekera, D.N.; Suraweera, P.H.R.
Abstract Available