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Biomedical subjects

L A Janssens

Publications and source records attributed to L A Janssens.

14 recordsLinked to original sources
PubMed1997

Comparisons between stress incontinence in women and sphincter mechanism incompetence in the female dog.

In dogs, sphincter mechanism incompetence most often affects middle-aged spayed bitches and is more prevalent in docked animals, certain breeds and in dogs over 30 kg in weight. It results in urinary leakage, mainly when the animal is recumbent and relaxed. In humans, stress incontinence occurs most often in post-menopausal women who are multiparous, have had difficult deliveries and are obese. They also leak urine, but most often when active stressors increase abdominal pressure. Both women and bitches have shorter functional urethras and lower maximal urethral pressures. In women, the compliance and cross-sectional area of the urethra are increased and power generation is substantially weakened. Many women and most bitches have an intrapelvic bladder neck and a short urethra. Owing to hormonal deficiencies they have an impaired capacity to seal the lumen of the urethra and the urethral sphincter is less sensitive to sympathomimetics. In women partial denervation of the pudendal nerve is also a contributory factor.

Animals↗
PubMed1992

Acupuncture for the treatment of thoracolumbar and cervical disc disease in the dog.

Thoracolumbar disc disease (TLDD) and cervical disc disease (CDD) occur quite regularly in veterinary small animal practice, occurring predominantly in chondrodystrophic breeds and mostly around the age of 5-6 years. CDD is responsible for +/- 15% and TLDD for +/- 85% of disc herniations. Treatments may consist of surgery or medication or both. Acupuncture can also be used as a treatment for TLDD and CDD. With a few exceptions, the results of acupuncture treatment for TLDD and CDD are favorable and comparable to those of surgical treatments. The acupuncture techniques presented here are relatively simple and can be learned in a minimum of time.

Acupuncture Therapy↗
PubMed1992

Trigger point therapy.

Trigger points (TP) are objectively demonstrable foci in muscles. They are painful on compression and trigger pain in a referred area. This area may be the only locus of complaint in humans. In dogs we cannot prove the existence of referred zones of pain. Therefore, we can only diagnose a TP-induced claudication if we cannot find bone, joint, or neurologic abnormalities, and we do find TP that disappear after treatment together with the original lameness. Several methods have been developed to demonstrate TP existence objectively. These are pressure algometry, pressure threshold measurements, magnetic resonance thermography, and histology. In humans, 71% of the TP described are acupuncture points. TP treatment consists of TP stimulation with non-invasive or invasive methods such as dry needling or injections. In the dog, ten TP are described in two categories of clinical patients. First, those with one or few TP reacting favorably on treatment (+/- 80% success in +/- 2-3 weeks). Second, those with many TPs reacting badly on treatment. Most probably the latter group are fibromyalgia patients.

Animals↗
PubMed1990

[Cervical disk hernia in dogs: a review].

Cervical disc disease is caused by slow or rapid herniation of the intervertebral disc, usually between C2 and C5. The outstanding symptom is pain. Neurological defects are present in approximately 40 per cent of the dogs. Treatment consists of chemotherapy and/or surgery (fenestration or decompression). Fenestration results is gradual resolution of the symptoms, whereas decompression results in rapid resolution. Fenestration has the advantage of preventing future recurrences. The present paper presents a review of the literature, and particular aspects are emphasised on the basis of personal clinical experience.

Animals↗
PubMed1988

Acupuncture analgesia: a review.

Acupuncture analgesia works by stimulating large myelinated nerve fibres which conduct the stimulus to the spinal cord and higher centres. The ascending pain impulses are blocked by a complicated interaction in which serotonin, endorphins, encephalin, norepinephrine and substance P all play important roles. The practical applications of acupuncture in small animal practice are limited and require the cooperation of the owner and the animal. It is useful especially in caesarian sections, in patients with high risk conditions such as gastric torsion and as a post-surgical analgesic. It can also be used to advantage in combination with conventional anaesthetic agents.

Acupuncture Therapy↗
PubMed1986

Treatment of pseudopregnancy with bromocriptin, an ergot alkaloid.

One hundred and forty-two dogs with single or multiple pseudopregnancies were treated with bromocriptin at three different dose rates and once in combination with mobilerone. The treatments that scored best were 30 micrograms/kg bromocriptin for 16 days and 10 micrograms/kg bromocriptin for 10 days. Vomiting was a frequent side effect (about 20 per cent of cases) and was treated successfully with metoclopramide at a dosage of 0.5 mg/kg. Metoclopramide had no effect on the effectiveness of the bromocriptin.

Animals↗
PubMedDate not supplied

Trigger points in 48 dogs with myofascial pain syndromes.

Seven foci of pain (trigger points) were identified in the triceps brachii, infraspinatus, adductor-pectineus, peroneus longus, gluteus medius, ileocostorum lumborum, and quadriceps femoris muscles in 48 lame dogs. The dogs had been lame for 1 day to 150 weeks (mean, 24 weeks). Thirty-one dogs had been treated unsuccessfully with corticosteroids, nonsteroidal anti-inflammatory drugs, analgesics, or acupuncture. Palpating the trigger points induced severe pain. Treatment consisted of weekly stimulation of the trigger points by needling or injection of a local anesthetic. The mean treatment period was 2.8 weeks. Excellent results and complete recovery were observed in 34 dogs (60%).

Animals↗