The Journal of international medical research
-
Randomized Controlled Trial Comparative Study Clinical Trial
The efficacy of intrathecal morphine in post-thoracotomy pain management.
This study compared the analgesic efficacy of intrathecal (IT) morphine plus IV patient-controlled analgesia (PCA) morphine with IV PCA morphine alone in 33 patients undergoing thoracotomy randomized to two groups: the IT morphine group (n=17) received 10 microg/kg morphine 1 h before the end of surgery, while the control group (n=16) did not. All patients had access to an IV PCA pump post-operatively that delivered 2 mg morphine boluses. ⋯ Post-operative pain scores and morphine consumption were significantly reduced, while peak expiratory flow rates were significantly increased in the IT morphine group compared with controls. We concluded that IT morphine in addition to IV PCA established superior analgesia and maintained better respiratory function compared with IV PCA alone in post-thoracotomy patients.
-
Randomized Controlled Trial
A ropivacaine-lidocaine combination for caudal blockade in haemorrhoidectomy.
A single dose of caudal lidocaine does not provide a sufficiently long anaesthetic duration and is not generally used for complicated anorectal surgery. This study evaluated the safety and efficacy of a ropivacaine-lidocaine combination for caudal anaesthesia in patients undergoing haemorrhoidectomy. ⋯ Patients treated with the ropivacaine-lidocaine combination had significantly lower scores for pain at each post-operative time point, and a longer mean time to the first requirement for post-operative analgesic than patients in the placebo-lido group. These results suggest that caudal anaesthesia with a combination of ropivacaine and lidocaine is a safe and effective method of inducing anaesthesia during haemorrhoidectomy.
-
Randomized Controlled Trial
Propofol increased the interleukin-6 to interleukin-10 ratio more than isoflurane after surgery in long-term alcoholic patients.
This study investigated the effect of an anaesthetic regimen on the immune response in 40 long-term alcoholic patients undergoing surgery. Patients were randomly allocated to receive either propofol or isoflurane during surgery. Plasma cytokines interleukin (IL)-6 and IL-10 were measured at defined times and rates of post-operative infections were documented. ⋯ The overall post-operative infection rate was significantly higher in isoflurane-treated patients. Our findings indicate that propofol anaesthesia might be the more favourable regimen, with the IL-6/IL-10 ratio indicating an attenuation of the immune imbalance after surgery in long-term alcoholic patients. These results support the undertaking of a properly powered clinical trial to determine if propofol anaesthesia can reduce the postoperative infection rate in this special patient population.
-
The effectiveness of medical masks in preventing respiratory infection was investigated by testing bacterial leakage, filtration efficiency, respiratory resistance and oxygen concentration of the enclosed space. Polypropylene (PP) fibres were treated with dimethyldioctadecylammonium bromide to impart a positive electrical charge capable of attracting bacteria. The fluffed PP fibres were used to make a polypropylene mask and to edge standard surgical and N-95 respirators to prevent leakage. ⋯ Bacterial or viral filtration efficiency was almost 100% for the PP mask and the PP napkin. The specially designed PP mask with a synthetic adhesive at the edge of the mask may be more effective than the standard surgical mask and the N-95 respirator. The PP napkin is an important tool in preventing the spread of pathogens.
-
Randomized Controlled Trial
Effect of nicardipine on haemodynamic and bispectral index changes following endotracheal intubation.
We investigated the effect of IV nicardipine on haemodynamic and bispectral index responses to the induction of general anaesthesia and intubation. Forty patients were randomly allocated to two groups of 20 to receive normal saline or nicardipine 15 microg/kg IV 30 s after induction. Ninety seconds later, tracheal intubation was performed. ⋯ In the nicardipine group, systolic blood pressure decreased compared with the control group, and heart rate increased comparedwith the control group. Bispectral index and rate-pressure product showed no differences between the two groups. In conclusion, the administration of 15 microg/kg nicardipine IV does not affect anaesthetic depth in response to the induction of general anaesthesia and intubation.