Comparative study between tramadol and dexamethasone as an admixture to bupivacaine in supraclavicular brachial plexus block.

This is a prospective, randomized, double blind study to evaluate the postoperative analgesia following supraclavicular brachial plexus block with Tramadol or Dexamethasone as an admixture to bupivacaine in upper extremity surgery. Total 60 patients of ASA I and II undergoing upper extremity surgery under brachial plexus block with Bupivacaine were randomly divided in to two groups; one group received Tramadol (2 mg/kg) and the other group received Dexamethasone (8 mg) as an admixture to Bupivacaine. The duration of postoperative analgesia was recorded in both groups using pain VAS score which was determined by maximum VAS score of 8-10 and when patient demands for additional analgesics. The mean duration of postoperative analgesia in the Dexamethasone group was 1028.00 minutes while in the tramadol group it was 453.17 minutes We concluded that Dexamethasone with local anaesthetic prolongs postoperative analgesia significantly than Tramadol (P<0.05) when used as admixture to local anaesthetic in brachial plexus block in upper extremity surgery.

Saphenous--peritoneal shunt in refractory ascites: a neglected technique.

Management of intractable ascites has always been a challenge. Peritoneovenous shunt (PVS) plays a major role in the surgery of intractable ascites in patients with liver cirrhosis. Positive pressure gradient between the ascitic fluid and venous pressure leading to one-way drainage of ascitic fluid into venous circulation is the mainstay. Over decades, various modifications of shunting technique have been done. Here we report our experience with this procedure which is safe, easy and effective. Here the long saphenous vein is used as a drainage system. One-way ascites flow is ensured by a natural valve in the saphenous orifice.

Upper GI endoscopy in children- in an adult suite.

Although Upper GI endoscopy is commonly performed in adults, paediatric endoscopy is not available in many of our referral centres. The efficacy and safety of upper GI endoscopy in paediatric age group performed in adult suite of Kathmandu Medical College is reviewed. PATIENTS AND METHOD: A retrospective study of endoscopies performed on children aged up to 15 years in an adult endoscopy suite of Kathmandu medical college over last one year is presented. All cases were the referred cases from paediatric unit for various problems. RESULTS: Endoscopy in paediatric group comprises only 6% of total upper GI endoscopies performed during the same year. Sex ratio was almost equal. Most cases (87%) were performed under local anaesthetic and well tolerated by the patients. Recurrent abdominal pain (RAP) was the commonest indication and among them one third of cases had significant positive finding. CONCLUSION: Upper GI endoscopy is a useful diagnostic tool in children. Where specialized paediatric endoscopy units are not feasible i.e. developing countries, endoscopic services to children can be safely provided in adult endoscopy suite with or without sedation. Upper GI endoscopy is well tolerated by children even without sedation.

Total thyroidectomy: the treatment of choice in differentiated thyroid carcinoma.

INTRODUCTION: Clinically detectable thyroid carcinoma constitutes less than 1% of human cancers. Ninety percent of all thyroid malignancies are differentiated papillary and follicular carcinoma. Surgery plays a key role in differentiated thyroid carcinoma as it carries excellent prognosis, lower recurrence rate and low mortality rate but controversy persists for extent of surgery and optimal surgical management of lymph node metastasis. PATIENT AND METHOD: A retrospective analysis was done for the cases that underwent total thyroidectomy with lymph node dissection for differentiated carcinoma of thyroid in Kathmandu Medical College during two year periods (Oct 2001 to Oct 2003). RESULT: In our experience with 18 cases of Differentiated Thyroid Carcinoma (DTC) treated with total thyroidectomies and lymph node dissection, papillary carcinoma was predominant with 83% incidence. Disease was prevalent in 50 to 60 year age group. Except two cases of transient hypocalcaemia and few wound related complications, there have been no other complications. CONCLUSION: Total thyroidectomy with lymph node dissection is safe and effective, so, the treatment of choice in cases of differentiated thyroid carcinoma.

Liposomes of terbutaline sulphate: in vitro and in vivo studies.

In vitro studies were conducted to understand the comparative drug diffusion pattern, across artificial membrane, of the drug and of the prepared liposomes of different liposomal membrane composition. In vivo studies were carried out to determine the extent and time-course of pulmonary tissue uptake of administered liposomes containing terbutaline sulphate(TER) on rat lungs. In vitro studies revealed that the drug released from the prepared liposomes obeys Higuchi's diffusion controlled model. Different loading doses and release patterns of drug from the liposomes can be obtained by altering the PC:CHOL ratio and incorporation of cholesterol was found to reduce permeability of the membrane. Similarly drug absorption in vivo in rat's lung following intratracheal instillation, prolonged over 12 hr by liposomal entrapment of TER. The findings of present investigation indicated that liposomally encapsulated TER can be used for pulmonary delivery for maximizing the therapeutic efficacy and reducing undesirable side effects.