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At least 343 records · Page 19Linked to original sources
PubMed1988

Crossed transvertebral puncture to block spinal ganglion in treatment of pain.

A simple and highly efficient percutaneous method eliminating the spinal ganglion and its posterior spinal cord root in treating metameric pain is described. Monitored by X-ray the needle crosses the vertebral canal passing e.g. from the right into the left intervertebral space. The intervention itself is made by a mesocaine alcohol block. The first experience with 12 patients is favourable in postdiscotomic syndromes or lumbar and causalgic pains in lower extremities having no mechanical cause discovered by CT.

Acetanilides↗
PubMedDate not supplied

Continuous spinal anesthesia and post dural puncture headache: a retrospective study.

Continuous spinal anesthesia (CSA) fell into disuse because of a presumed high incidence of post dural puncture headache (PDPH). A careful retrospective study of 226 continuous spinal anesthetics administered for a variety of surgical (not obstetric) procedures was carried out and indicated that none of the patients developed PDPH. While 62% of the patients were older than 60 years of age, a group with a low incidence of PDPH, it was expected that some of the younger patients would develop this complication, especially since 94% of the dural punctures were carried out with 17- and 18-gauge needles. This study also revealed only a 12% incidence of hypotension, an impressive finding because 64% of the patients were considered ASA III or IV. There were no other intraoperative or postoperative complications or deaths due to CSA. This retrospective study indicates that CSA, properly carried out with 17- and 18-gauge needles, is not necessarily associated with a high incidence of PDPH; and in view of its low morbidity and mortality, CSA is particularly useful and safe in the poor-risk elderly patient. This study also raises the question as to whether there is a need for the recently developed (and expensive) microcatheters that fit through very small-bore needles.

Adult↗
PubMed2004

Epidural catheter penetration of human dural tissue: in vitro investigation.

BACKGROUND: Factors contributing to subarachnoid catheter passage after epidural placement are not well understood. This study explored mechanisms that might explain its occurrence. METHODS: Human cadaveric dura was mounted on a model and pressurized to physiologic levels. In a standardized fashion, a 20-gauge Portex three-port, closed end (nonflexible) tip catheter was passed through an epidural needle mounted on a micromanipulator at a 90 degree angle, attempting to penetrate dura with the catheter. Attempts then followed with a 19-gauge Arrow Flex Tip Plus single-port catheter. Subarachnoid catheter passage was compared in (1) intact dura, (2) clinically occult versus obvious epidural needle punctures, and (3) single 25-gauge Whitacre spinal needle punctures after combined spinal-epidural placement. RESULTS: Neither catheter penetrated intact dura: Portex, 0 of 300 attempts (0.0000; 95% confidence interval [CI]: 0.0000, 0.0158); Arrow, 0 of 300 attempts (0.0000; 95% CI: 0.0000, 0.0158). In clinically occult epidural needle punctures, the 20-gauge Portex catheter penetrated 1 of 3 specimens in 1 of 14 attempts (0.0714; 95% CI: 0.0021, 0.3583). The 19-gauge Arrow did not pass (0 of 15 attempts, 0.0000; 95% CI: 0.0000, 0.2535). In clinically obvious epidural needle punctures, the Portex passed in 6 of 33 attempts (0.1818; 95% CI: 0.0760, 0.3608) and the Arrow passed in 1 of 35 attempts (0.0286; 95% CI: 0.0012, 0.1662). Neither catheter passed through a single 25-gauge spinal needle puncture after an uncomplicated combined spinal-epidural: Portex, 0 of 90 attempts (0.0000; 95% CI: 0.0000, 0.0510); Arrow, 0 of 90 attempts (0.0000; 95% CI: 0.0000, 0.0510). CONCLUSIONS: Catheter passage is unlikely in the presence of intact dura or after an uncomplicated combined spinal-epidural. Unintentional subarachnoid passage suggests dural damage with the epidural needle.

Adult↗
PubMed1990

Complications of lateral C1-2 puncture myelography.

This study reviewed the technical complication of 112 cases of lateral C1-2 puncture myelography for cervical spinal cord disorders. Spinal cord puncture and contrast injection, puncture between the occiput and C1, and blood vessel puncture were the main complications. These principally depended on the positioning of the patient's neck (hyperextension) and misdirection of the x-ray beam. For preventing major arterial puncture, the authors also reviewed 164 vertebral angiograms and determined the pathway of the vertebral arteries and the incidence of anomaly.

Female↗
PubMedDate not supplied

Microscopic analysis of the tips of thin spinal needles after subarachnoid puncture.

BACKGROUND AND OBJECTIVES: Foreign material may pass unrecognized with the spinal needle into the subarachnoid space. Therefore the tips of three clinically used types of spinal needles--Quincke (27-gauge), two-zone bevel (26-gauge), and Sprotte or pencil point (27-gauge)--were prepared for microscopic analysis after subarachnoid puncture in human cadavers. METHODS: Three cadavers were placed in the lateral position, the backs were scrubbed with disinfectant solution containing 0.1% fluorescein, and 12 needles of each type (half of them through an introducer) were inserted via interspaces L2-L5 into the subarachnoid space. Under visual control (spinal canal opened), the needle tips were cut and collected for fluorescence microscopy. Another eight needles of each type (half through an introducer) were inserted, the tips were collected into tubes filled with physiologic saline, and cytocentrifuged smears of the eluted material were made. RESULTS: On microscopy, only one of the two-zone bevel needles and two of the pencil point needles, placed through an introducer, were without attachments. All the others had variable amounts of fluorescence, and visible tissue particles adhered to the tip. The largest particles appeared on two of the Quincke needle tips. Bent tips were seen on 7 of the 12 two-zone bevel needles. The Quincke group had two and the pencil point group no bent needle tips. Clusters of epithelioid cells were seen in the cytocentrifugation smears of Quincke and two-zone bevel needle tips, but only very few cellular clusters were seen in the smears from the pencil point needle tips. CONCLUSIONS: Of the three needle types studied, the pencil point type has a tip that best withstands distortion and adherence of foreign material during experimental subarachnoid puncture.

Aged↗
PubMed2001

Post dural puncture headache following combined spinal epidural or epidural anaesthesia in obstetric patients.

A retrospective review of obstetric anaesthesia charts was performed for all parturients receiving regional anaesthesia over a 22-month period. The incidence of headache, post dural puncture headache (PDPH) and various other complications of regional anaesthesia that had been prospectively assessed were noted, as was the anaesthetic technique used (epidural or combined spinal epidural (CSE)). PDPH was rare (0.44%) and occurred with similar frequency in those managed with either epidural or CSE anaesthesia or analgesia. The pencil-point spinal needle gauge (27 or 29) did not influence the incidence of PDPH. Following a CSE technique, the epidural catheter more reliably produced effective analgesia/anaesthesia as compared with a standard epidural technique (1.49% versus 3.18% incidence of replaced catheters respectively). We conclude, based on the results of this retrospective review, that CSE is acceptable with respect to the occurrence of PDPH and that it is possible it is advantageous in relation to the correct placement of the epidural catheter

Adult↗
PubMed1998

Complications of lumbar puncture.

This article reviews historical aspects and the following complications of lumbar puncture: cerebral and spinal herniation, postdural puncture headache, cranial neuropathies, nerve root irritation, low back pain, stylet associated problems, infections, and bleeding complications. The incidence of postdural puncture headache can be greatly reduced by pointing the face of the bevel in the direction of the patient's side, replacing the stylet and rotating the needle 90;dg before withdrawing the needle, and using the Sprotte atraumatic needle, especially in high risk patients.

History, 19th Century↗