Too OFTEN, before she even meets the anaesthetist, the woman in labour has already experienced the greatest part of the pain associated with having her baby. She then receives an epidural block, a saddle block, or other form of anaesthetic for the final half hour or so of labour. The first stage is often a trying, unpleasant, and painful episode. In the past this has been dealt with relatively ...

The plugging phenomenon near the well zone of oil injection will seriously affect water development field, and then exploitation resources. low permeability reservoir is affected by various factors. Due to large difference between layers serious interference layers, physical property layer relatively poor, pressure shows a trend increasing year year, which has great impact on As oilfield benefi...

We have investigated the relationship between the extent of spinal block and occurrence of sedation. In a first series of 43 patients, the distribution of sedation score (measured on the Ramsey scale) was related to the extent of spinal block (pinprick). In a second series of 33 patients, the relationship between sedation score and spinal block persisted after injection of midazolam 1 mg. This ...

Whether pulse oximeter perfusion index (PI) may be applied to detect the onset of caudal block in pediatric patients under ketamine intravenous basal anesthesia is investigated. 40 ASA I, 2-8-year-old boys scheduled for elective circumcision surgery were randomized into two groups. Group I: 20 patients were anesthetized by 2 mg·kg(-1) ketamine intravenous injection (IV) followed by caudal block...

BACKGROUND The transversus abdominis plane (TAP) block is a new regional anaesthesia technique that provides analgesia after abdominal surgery. It involves injection of local anaesthetic into the plane between the transversus abdominis and the internal oblique muscles. The TAP block can be performed using a landmark technique through the lumbar triangle or with ultrasound guidance. The goal of ...

OBJECTIVE Despite lack of efficacy data, the majority of first-trimester surgical abortions are performed with a paracervical block. Women may be unnecessarily exposed to a painful injection and potentially noxious medication. Our objective was to estimate the effect of a paracervical block and the effect of gestational age on patient pain perception. METHODS This was a randomized, single-bli...

PURPOSE The aim of this study is to apply combination of axillary plexus block with "selective" injection of nerves and continuous catheter technique, and to compare the anesthetic and postoperative analgesic effects of bupivacaine and levobupivacaine. METHODS In 30 scheduled patients for unilateral hand or forearm surgery, an axillary brachial plexus block with "selective" injection of nerve...

BACKGROUND Bicarbonate, as an adjunct increasing the non-ionized form of local anesthetics, can reduce latency and prolong duration of regional nerve block. Warming of local anesthetics decreases pKa and also increases the non-ionized form of local anesthetics. We warmed ropivacaine to body temperature (37℃) and evaluated the sensory block onset time, motor block onset time and analgesic durati...

We have assessed the effect of two concentrations of hyaluronidase on the quality of peribulbar block, using a low volume, single injection technique. We studied 200 patients undergoing elective intraocular surgery, allocated randomly to one of three groups. Group 1 (n = 50) received peribulbar block with 5 ml of a 1:1 mixture of 0.5% plain bupivacaine and 2% plain lignocaine. Group 2 (n = 75) ...