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Biomedical subjects

A D Walls

Publications and source records attributed to A D Walls.

11 recordsLinked to original sources
PubMed1992

Needle core biopsy of the breast with a spring-loaded device.

Over a 2-year period, 151 outpatients with a palpable breast lump requiring needle core biopsy were randomized to a Tru-Cut 14-G (T14), Bioptycut 14-G (B14) or Bioptycut 18-G (B18) needle. Use of a Biopty gun resulted in less pain than a Tru-Cut needle. An inadequate sample was obtained after two needle passes in 11 of 49 (T14), none of 51 (B14) and two of 51 (B18) patients (chi 2 = 14.6, 2 d.f., P = 0.0007). Tissue samples were assessed by a single pathologist for tissue volume and overall diagnostic value; the B14 group scored better than the B18 and T14 for both of these parameters (P < 0.003). The sensitivities were 68 (T14), 88 (B14) and 96 (B18) per cent (overall chi 2 = 7.3, 2 d.f., P = 0.026). The Biopty gun with a 14-G needle results in a higher sampling success rate, greater diagnostic sensitivity and a better specimen quality than the Tru-Cut, and is much easier to use.

Adult↗
PubMed1980

Central venous catheterisation.

Eighty-one central venous catheter placements have been carried out with a serious-complication rate of 3.7%. Major long-term complications occurred in 5 patients. Malplacement of the catheter was more common when the infraclavicular subclavian route was used. Inadvertent removal occurred on 10 occasions and a new design of catheter hub is expected to eliminate this problem.

Catheterization↗
PubMed1976

A five-year follow-up of Lord's dilatation for haemorrhoids.

100 consecutive patients treated by Lord's dilatation for haemorrhoids were followed up for a mean of 5-1 years. 2 patients could not be traced, and 1 had died. 75 patients were symptom-free or greatly improved. For 22 patients the treatment was unsatisfactory and 19 have since undergone haemorrhoidectomy. The outcomes at six months and five years were the same in 87%. The results of this follow-up study indicate that treatment of haemorrhoids by Lord's dilatation produces satisfactory long-lasting results in most patients.

Adult↗
PubMedDate not supplied

Congenital absence of the gallbladder: ways of avoiding laparotomy.

Two cases of congenital absence (agenesis) of the gallbladder seen at one hospital over a 5-year period are presented. One patient presented with ascending cholangitis due to choledocholithiasis, while the other presented with right upper quadrant abdominal pain and equivocal findings on ultrasound and oral cholecystography. Although diagnosis was made at laparotomy in both cases, it is likely that the arrival of laparoscopic cholecystectomy will avoid laparotomy in the future. The place of laparoscopy in establishing the presence of this anomaly is discussed.

Adult↗