[Show abstract][Hide abstract] ABSTRACT: Transcatheter closure of atrial septal defect (ASD) is generally performed under fluoroscopy alone. Recently, we have used transesophageal echocardiography (TEE) monitoring as an aid in performing this procedure. The purpose of this study was to evaluate the efficacy and complications associated with this use of TEE.
Transcatheter closure of ASD was accomplished under TEE guidance simultaneously with fluoroscopic imaging in 11 patients aged 3 to 33 years (weight, 15.4-62.9 kg). TEE was successfully performed in all patients after endotracheal general anesthesia. The ASDs were reexamined before catheterization. The appropriate placement of the occluder device was evaluated.
Seven cases were uneventful with successful ASD occluder implantation, but one failed because of a large ASD (24.7 mm). In three cases, transcatheter closure was aborted after TEE examination, one with a large ASD (27.05 mm), one with an ASD that was too small, and one with multiple fenestrated ASDs.
Routine TEE monitoring for transcatheter closure of ASDs is effective for evaluation of ASD before implantation of an occluder, to ensure the proper seating of the occluder after the defect occlusion is complete.
Full-text · Article · Oct 2000 · Journal of the Formosan Medical Association
[Show abstract][Hide abstract] ABSTRACT: This study was designed to compare the efficacy of 10% dextran 40 with lactated Ringer's (LR) solution in reducing the incidence and severity of hypotension after spinal anesthesia for Cesarean section.
Sixty ASA grade I patients scheduled for Cesarean section were randomized into two groups in a double-blind fashion to receive either 500 ml of dextran 40 or 1000 ml of LR solution prior to induction of spinal anesthesia.
The incidence of hypotension was 16 in 30 (53.3%) in the LR solution group and 8 in 30 (26.7%) in the dextran group (P < 0.05). The required dose of ephedrine for treatment of hypotension was significantly greater in the LR solution group than in the dextran group (15.5 mg versus 3.2 mg, P < 0.05). Neonatal outcome, as determined by Apgar score, was good and similar in both groups.
We concluded that 500 ml of dextran 40 is more effective than 1000 ml of lactated Ringer's solution in reducing the incidence of hypotension induced by spinal anesthesia.
No preview · Article · Jun 1999 · Acta anaesthesiologica Sinica
[Show abstract][Hide abstract] ABSTRACT: Stimulation of P6 (Neiguan) acupoint can prevent nausea and vomiting in adults. However, there is no antiemetic effect in children undergoing strabismus surgery. The effect of P6 may act only on hollow organs; in contrast, BL-10 (Tianzhu), BL-11 (Dazhu) and GB-34 (Yanglinquan) are more related to the meridians of the eye. Therefore these three more relevant acupoints, BL-10, BL-11 and GB-34 were stimulated to evaluate the antiemetic effect in children undergoing strabismus surgery.
Sixty-five children, ASA physical status I, between 3 and 14 years of age, were randomly divided into two groups as follows: placebo group (n = 31) and acuplaster group (n = 34). Bilateral acupressure using the Vital Point Needleless Acuplaster (Koa, Japan) was applied to BL-10, BL-11 and GB-34 points the night before surgery. Anesthesia was induced and maintained with halothane and nitrous oxide in oxygen. Postoperative emesis was assessed at early (at PACU) and late (at ward) phases, and was recorded by an investigator blind to the treatment characteristics.
In the early emesis phase, the incidence of vomiting was 35.5% for placebo group, compared with 14.7% for acuplaster group. In the late emesis phase, acuplaster patients had a significantly lower incidence of vomiting (23.5% vs. 58.1% in placebo patients, p < 0.05). The overall postoperative vomiting incidence in the acuplaster patients in a 24 h period which was significantly decreased was 29.4% as opposed 64.5% in the placebo group (p < 0.05).
The results demonstrated that prophylactic use of bilateral noninvasive acuplaster on the BL-10, BL-11, and GB-34 acupoints significantly reduces vomiting after strabismus correction. The mechanism may be dispersal of these three acupoints, thus diminishing the parasympathetic stimulation resulting from surgical traction of eye muscles.
No preview · Article · Mar 1998 · Acta anaesthesiologica Sinica