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At least 451 records · Page 25Linked to original sources
PubMed1995

Pregnancy outcome after transcervical CVS with a flexible biopsy forceps: evaluation of risk factors.

The pregnancy outcome of 1936 women who had transcervical chorionic villus sampling (CVS) with a flexible biopsy forceps was evaluated. Follow-up until 4 weeks after delivery was 99.4 per cent. Various patient- and procedure-related risk factors for spontaneous loss (fetal or neonatal death) were analysed using stepwise logistic regression analysis. The overall spontaneous loss rate was 4.5 per cent. Factors found to be significantly associated with spontaneous loss were quantity of villi < or = 15 mg (relative risk (RR) 2.13), a history of first-trimester miscarriage (RR 1.87) or delivery between 16 and 27 weeks (RR 3.87), cervical culture positive for anaerobes (RR 4.52) or group B streptococcus (RR 3.62), post-procedural bleeding > 3 days (RR 1.99), and multiple insertions (RR 2.64). Significant differences in loss rates between individual operators were found. A learning effect was not present. There were no infants born with terminal transversal limb anomalies in our series. We conclude that knowledge about significant risk factors for spontaneous loss after CVS is important both for obstetricians carrying out CVS procedures and for women seeking prenatal diagnosis.

Adult↗
PubMed1988

Closed biopsy of the spine using a stereotactic biopsy forceps. Technical note.

A new technique for closed biopsy of the spine is presented. Using a stereotactic biopsy forceps, which is advanced to the lesion through a protective puncture cannula, sufficient samples from different sites of the lesion can be obtained. Biopsy was performed in seven patients harbouring osteolytic and osteoplastic lesions of the cervical (3 cases), thoracic (3 cases) and lumbar spine (1 case). Histological diagnosis was possible in five patients. In all of them, metastatic disease was found. In our opinion, using this device closed biopsy of the spine is a simple and efficient method for obtaining sufficient material at different levels of the spine and at different sites within a lesion. We recommend its use when the therapeutic consequences--surgical tumour removal with stabilization, stabilization alone or radiation therapy--is contingent on the histopathological diagnosis.

Aged↗
PubMed1977

Percutaneous forceps extraction of retained biliary tract calculi.

The experience of the authors with postoperative extraction of retained biliary calculi in 35 cases is presented. Successful removal of the stones was achieved in all patients without any significant complication. The advantage of the Mazzariello-type metal forceps as compared to the Burhenne method is emphasized and illustrative examples are presented. Specific guidelines for a successful application of various techniques of stone extraction are provided.

Adult↗
PubMed1986

A set of double-angled needle holders and long, angled tissue forceps for use in surgery of the abdomen.

A set of double-angled needle holders and long, angled tissue forceps have been designed and presented for use in surgery of the abdomen. The problems of passage and control of curved needles in all directions is well recognized. The marriage of design and presentation addresses the mechanical and anatomic needs of surgeons in the pelvis, subdiaphragmatic area, and in large and obese patients. Multiple variables in use provided by these instruments, particularly when used together, enhance surgical control at problem sites.

Abdomen↗
PubMed1986

Intestinal forceps for control of tubulovisceral structures in deep abdominal surgery.

A set consisting of long-angled and straight intestinal forceps has been designed for use in the control of tubulovisceral structures in abdominal surgery. Their design addresses the mechanical and anatomic needs of deep and difficult areas of the abdomen, especially the pelvis. The configuration can improve and enhance control at a number of surgical sites.

Abdomen↗
PubMed2001

Comparative clinical trial of progressive dilatational and forceps dilatational tracheostomy.

OBJECTIVE: To compare the safety and early complications of progressive dilatational tracheostomy (PDT) and forceps dilatational tracheostomy (FDT). DESIGN: Prospective randomized trial. SETTING: Three-centre university and public teaching hospitals. PATIENTS: One hundred and twenty-seven consecutive patients were randomized to undergo PDT or FDT. RESULTS: The duration of the procedure was 7.0 +/- 3.5 min in the PDT group and 6.4 +/- 4.9 min in the FDT group, which was not significantly different. Intraprocedural complications occurred in 14 % with PDT and 31% with FDT (p = 0.03), and were usually minor. Difficult or false insertion of the cannula in eight patients after FDTwas the most common complication. CONCLUSIONS: Both percutaneous tracheostomy techniques are safe. The early complication rate of PDT appeared to be lower than FDT, but the early complication rate of FDT may be decreased significantly with small modifications to the set.

Aged↗
PubMed1999

Low edge damage container insert that adjusts intestinal forceps biopsies into Ussing chamber systems.

Ussing chamber experiments with human intestinal tissue are impeded by the small size of forceps biopsy specimens. Therefore, a miniaturized container insert featuring low edge damage was designed with an exposure area of only 0.05 cm2. It allows measurement of short-circuit current (ISC) and transmural resistance (Rt) on endoscopically obtained biopsy specimens, as well as alternating current impedance analysis and conductance scanning. Comparison with larger specimens mounted in a conventional Ussing chamber without the insert (exposure area 0.54 cm2) was made using rat jejunum and rectum. No differences in ISC, Rt, or secretory response were found, indicating proper sealing and prevention of edge damage, as well as tissue viability in the container system. If biopsy samples obtained from human rectum were mounted in the insert, the local resistance near the edge was almost the same as the overall resistance (52.3 Omega.cm2). Epithelial and subepithelial resistances of human rectum were 43+/-1 Omega.cm2 and 10+/-1 Omega.cm2, respectively. In conclusion, we present a tool that allows reliable Ussing-type, impedance, and conductance scanning measurements to be made from intestinal biopsy specimens.

Animals↗
PubMed1998

A new forceps for the safe and easier insertion of subdural catheter: technical note.

A new forceps suitable for the safe and easier insertion of a silicon catheter into the subdural space is described. The use of this new tool has two advantages: Firstly, the insertion of the silicon subdural catheter is parallel to the brain surface and secondly, the movement of the catheter's end in the subdural space is controlled with greater accuracy. Thus, the surgeon has the opportunity to direct the catheter to the right position avoiding penetration or injury of the brain.

Catheters, Indwelling↗
PubMed1975

Vitreous scissors and forceps.

Vitreous scissors with bent blades and forceps of larger than usual dimension were developed for removal of inflexible membranes and intraocular foreign bodies.

Eye Foreign Bodies↗
PubMed1975

Corneal forceps.

A pair of corneal forceps combining a large overall size with delicate features-13,5 cm long, 1.5-cm wide handles, and 0.15-cm teeth on the branches--is fenestrated and finely corrugated for easy grip.

Cornea↗
PubMed1976

Suturing forceps for microsurgery.

A microsurgical modification of the Rizzuti scleral fixation forceps for corneal and cataract surgery employs Bonn 0.12-mm teeth on an angled handle with an appropriate curve between the teeth to fix the tissue more adequately to allow accurate placement of sutures.

Humans↗
PubMed1977

Microsurgical anterior chamber utility forceps.

Anterior chamber utility forceps were designed primarily to remove capsular fragments and aid in performing iridectomies through small incisions in extracapsular cataract extractions.

Anterior Chamber↗
PubMed1981

Diamond-coated all-purpose foreign-body forceps.

A new foreign-body forceps with diamond-coated jaws can grasp and hold intraocular foreign bodies of any shape and composition. A self-closing mechanism holds the material once grasped.

Eye Foreign Bodies↗
PubMed1976

Sliding lock modification of standard tissue forceps.

This report describes a modification of the standard thumb forceps to provide a simple locking mechanism. This increases its usefulness in many surgical procedures. Certain advantages are presented and the instrument is illustrated and described.

Abdomen↗
PubMed1990

Forceps extraction of permanent pacing leads.

With the advent of tined transvenous cardiac pacing leads, the complete extraction of pacing leads in the treatment of an infected cardiac pacing system has become increasingly difficult. A method is described for the extraction of permanent pacing leads from the heart using alligator forceps inserted transvenously through the right internal jugular vein, grasping the lead near its insertion point in the cardiac muscle.

Electrodes, Implanted↗
PubMed1991

Improved forceps for pulmonary embolectomy.

A malleable, nonocclusive forceps for surgical extraction of fresh pulmonary emboli is described. This device allows the performance of pulmonary embolectomy under direct vision with an unobscured peripheral field and reduces the potential for traumatic pulmonary artery laceration.

Equipment Design↗