title: Lithotripsy as an outpatient service.
abstract: A lithotripsy outpatient service was introduced in Hamilton in April 1989 and between then and July 1990 452 patients with renal calculi were treated. The patients came from throughout New Zealand. A three month follow up showed that with stones less than 20 mm in diameter there was total clearance of residual fragments of less than 2 mm in 70% of patients. With stones of diameter greater than 20 mm the clearance rate was 50%. Posttreatment complications needing medical assistance occurred in 7% (31 patients). In 21 patients the stone either could not be found or did not disintegrate.
authors.affiliation: Waikato Lithotripsy Services Ltd, Hamilton.
authors.forename: J M
authors.initials: JM
authors.lastname: Gray
mesh_terms: D000553:Ambulatory Care; D005500:Follow-Up Studies; D006801:Humans; D008096:Lithotripsy / Q000009:adverse effects / Q000706:statistics & numerical data; D009520:New Zealand / Q000453:epidemiology; D011795:Surveys and Questionnaires; D014545:Urinary Calculi / Q000453:epidemiology / Q000628:therapy*