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Biomedical subjects

R W Kendrick

Publications and source records attributed to R W Kendrick.

14 recordsLinked to original sources
PubMed1999

Arteriovenous fistula after temporomandibular arthroscopy.

Temporomandibular joint arthroscopy has been associated with various vascular injuries including haemorrhage, pseudoaneurysm and fistula. We describe the endovascular balloon embolization of a traumatic superficial temporal arteriovenous fistula that complicated TMJ arthroscopy. We conclude that suspected vascular injuries after this procedure should be investigated by arteriography, and that embolization is a safe and effective treatment for superficial temporal artery fistulas.

Adult↗
PubMed1998

Balanced pre-emptive analgesia: does it work? A double-blind, controlled study in bilaterally symmetrical oral surgery.

We studied 32 patients undergoing bilateral symmetrical lower third molar surgery under general anaesthesia to determine if the combined effects of pre-emptive local anaesthetic block using 0.5% bupivacaine, together with i.v. tenoxicam and alfentanil had any benefits over postoperative administration. Patients acted as their own controls and were allocated randomly to have surgery start on one side, the second side always being the pre-emptive side. Difference in pain intensity between the two sides was determined using visual analogue scales completed by each individual at 6 h, and at 1, 3 and 6 days after operation. A long-form McGill pain questionnaire was also used to assess difference in pain intensity between the two sides on the morning after surgery. There was no significant difference in pain intensity at any time after surgery. Our findings indicate that the combined use of pre-emptive analgesia from 0.5% bupivacaine, tenoxicam and alfentanil did not reduce postoperative pain intensity in patients undergoing molar exodontia.

Adolescent↗
PubMed1997

Pre-emptive analgesia using local anaesthesia: a study in bilaterally symmetrical surgery.

Two studies were carried out in patients undergoing bilaterally symmetrical lower third molar surgery under general anaesthesia. In the first study observations were carried out in 40 patients, using McGill pain questionnaires and visual analogue scales (VAS), to assess the variation in pain intensity between the two sides in each individual on the morning after surgery. The within-patient variation in pain intensity indicated that a sample size exceeding 30 was required to show a difference of more than 10 mm on the VAS and achieve a power of 90% at the 5% level of significance. The second study was carried out to determine if local anaesthesia administered before rather than after tooth removal rendered any benefit. Each of the 38 patients acted as their own control; one side was allocated randomly to receive the local anaesthetic before operation and the other side after operation. The difference in pain between the pretreated and post-treated sides in each individual was assessed using a McGill pain questionnaire on the morning after surgery in addition to two VAS (one for each operation side) after operation, at 6 h, 1 and 6 days after surgery. There were no significant differences in pain at any time using any of the above methods.

Adolescent↗
PubMed1997

The effect of pre-operative administration of bupivacaine compared with its postoperative use.

Eighty patients undergoing lower third molar surgery under general anaesthesia were assigned to one of two groups to receive local anaesthetic blockade either 10 min prior to surgery or after surgery just before leaving the operating theatre. Patients in both groups received the local anaesthetic block whilst unconscious. Pain was assessed using visual analogue scales at 6 h and 1, 3 and 6 days after surgery. A McGill Pain Questionnaire was also completed on the morning following surgery. At no time was it possible to detect any significant difference in pain between the two groups. The administration of local anaesthesia prior to starting surgery does not appear to have any advantage over its postoperative administration in patients undergoing this type of surgery. The local anaesthetic, however, does provide excellent analgesia during the first few hours following surgery.

Adult↗
PubMed1991

Postoperative dental pain--a comparative study of anti-inflammatory and analgesic agents.

Intravenous dexamethasone and diclofenac were evaluated in a double blind randomised trial, relative to an opioid (pentazocine) and placebo (saline), in 160 patients undergoing extraction of impacted lower third molar teeth. Test drugs were administered intravenously before surgery to provide postoperative analgesia. Following the operation, pain was assessed using a 10 cm visual analogue scale. Patients who received diclofenac reported significantly less pain than others 30 minutes after surgery (p less than 0.05). Pain scores on the day following surgery were also significantly lower in the diclofenac group compared to the opioid and placebo groups (p less than 0.05) but not less than those who received dexamethasone--possibly indicating a long term advantage of the anti-inflammatory drugs. Vomiting was a problem in the opioid group.

Adolescent↗
PubMed1983

False aneurysm of the maxillary artery. An unusual complication of closed facial trauma.

False arterial aneurysms are most frequently a late complication of penetrating injuries. They can also occur following diagnostic or therapeutic arterial puncture and following surgery. Infrequently, blunt trauma and fractures may be associated with false aneurysm formation. A case of a false aneurysm of the maxillary artery is reported. The aneurysm appeared four weeks after closed facial injuries, including a Le Fort II fracture and mandibular fractures. The lesion was successfully treated by ligation of the distal branches of the external carotid artery with transantral clipping of the maxillary artery distal to the aneurysm.

Adolescent↗
PubMed1983

Richter's syndrome presenting as a facial swelling.

In a small percentage of cases, patients suffering from chronic lymphocytic leukemia undergo a preterminal dedifferentiation or transformation of their disease with the development of diffuse histiocytic lymphoma. The transformation, which is often accompanied clinically by pyrexia, lymphadenopathy, weight loss, and abdominal pain, has been termed Richter's syndrome. A case is reported wherein the patient came with a facial swelling that was initially thought to be due to dental infection. Richter's syndrome does not appear to have been reported in the oral surgery literature previously.

Aged↗
PubMed1977

Osteochondroma of the mandibular condyle. Case report and its management.

1. A case of osteochondroma of the temporomandibular joint simulating a unilateral condylar hyperplasia is presented. 2. The need to divide the zygomatic arch to facilitate removal of large tumors is noted. 3. The removal of the growth resulted in normal functioning of the jaws with the disappearance of the features of unilateral hyperplasia. 4. Occlusal grinding is often necessary to correct the compensatory occlusal adjustment that occurs with the rotation of the mandible in these lesions. 5. The possibility of the presence of a tumor must be kept in mind when patients present with symptoms of unilateral condylar hyperplasia.

Cartilage↗