In this Grand Rounds article, we present a typical case of a woman with polycystic liver disease. This case prompts questions which both patients and clinicians may face in clinical practice. This article aims to provide guidance to clinicians caring for patients with polycystic liver disease, in relation to key recent developments in the field. We discuss the latest advances in our understanding of pathophysiology, the natural course of disease, complications, as well as existing and potential new treatment options.

IMPORTANCE Autosomal dominant polycystic kidney disease (ADPKD) is characterized by progressive cyst formation in both kidneys and loss of renal function, eventually leading to a need for kidney replacement therapy. There are limited therapeutic management options. OBJECTIVE To examine the effect of the somatostatin analogue lanreotide on the rate of kidney function loss in patients with later-stage ADPKD. DESIGN, SETTING, AND PARTICIPANTS An open-label randomized clinical trial with blinded end point assessment that included 309 patients with ADPKD from July 2012 to March 2015 at 4 nephrology outpatient clinics in the Netherlands. Eligible patients were 18 to 60 years of age and had an estimated glomerular filtration rate (eGFR) of 30 to 60 mL/min/1.73 m 2. Follow-up of the 2.5-year trial ended in August 2017. INTERVENTIONS Patients were randomized to receive either lanreotide (120 mg subcutaneously once every 4 weeks) in addition to standard care (n = 153) or standard care only (target blood pressure <140/90 mm Hg; n = 152). MAIN OUTCOMES AND MEASURES Primary outcome was annual change in eGFR assessed as slope through eGFR values during the 2.5-year treatment phase. Secondary outcomes included change in eGFR before vs after treatment, incidence of worsening kidney function (start of dialysis or 30% decrease in eGFR), change in total kidney volume and change in quality of life (range: 1 [not bothered] to 5 [extremely bothered]). RESULTS Among the 309 patients who were randomized (mean [SD] age, 48.4 [7.3] years; 53.4% women), 261 (85.6%) completed the trial. Annual rate of eGFR decline for the lanreotide vs the control group was −3.53 vs −3.46 mL/min/1.73 m 2 per year (difference, −0.08 [95% CI, −0.71 to 0.56]; P = .81). There were no significant differences for incidence of worsening kidney function (hazard ratio, 0.87 [95% CI, 0.49 to 1.52]; P = .87), change in eGFR (−3.58 vs −3.45; difference, −0.13 mL/min/1.73 m 2 per year [95% CI, −1.76 to 1.50]; P = .88), and change in quality of life (0.05 vs 0.07; difference, −0.03 units per year [95% CI, −0.13 to 0.08]; P = .67). The rate of growth in total kidney volume was lower in the lanreotide group than the control group (4.15% vs 5.56%; difference, −1.33% per year [95% CI, −2.41% to −0.24%]; P = .02). Adverse events in the lanreotide vs control group included injection site discomfort (32% vs 0.7%), injection site papule (5.9% vs 0%), loose stools (91% vs 6.6%), abdominal discomfort (79% vs 20%), and hepatic cyst infections (5.2% vs 0%). CONCLUSIONS AND RELEVANCE Among patients with later-stage autosomal dominant polycystic kidney disease, treatment with lanreotide compared with standard care did not slow the decline in kidney function over 2.5 years of follow-up. These findings do not support the use of lanreotide for treatment of later-stage autosomal dominant polycystic kidney disease.

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The association between estrogen‐containing oral contraceptives and history of pregnancies with disease severity in women with polycystic liver disease (PLD) is unclear. We performed a cross‐sectional cohort study to assess this association by selecting female patients with PLD of which imaging was available prior to any liver volume‐reducing therapy. Patients received a questionnaire to collect detailed information on estrogen use and pregnancies. Preplanned subgroup analyses were performed on premenopausal and postmenopausal patients. The questionnaire was returned by 287 of 360 selected patients (80%). There was no significant association between estrogen‐containing oral contraceptives and height‐adjusted total liver volume (hTLV) in the total group (P = 0.06) and postmenopausal subgroup (P = 0.7). By contrast, each year of exposure corresponds with a 1.45% higher hTLV (P = 0.02) in the premenopausal subgroup, equivalent to a 15.5% higher hTLV for every 10 years of use. Pregnancy duration was not associated with hTLV. In conclusion, patients with PLD should avoid exogenous estrogens.

A double-blind randomized trial was conducted among 36 laryngectomees to assess the influence of a buccal bioadhesive slow-release tablet containing miconazole nitrate on the lifetime of the Provox voice prosthesis. All patients colonized with Candida spp and treated with miconazole showed a significant decrease of colonization at the end of the study. Intratracheal phonatory pressures were remarkably higher after 2 months of follow-up in the placebo group. No local or systemic adverse reactions to miconazole were observed during this study. Patient compliance was acceptable according to regular miconazole determination in saliva samples. The device lifetime was significantly higher in patients treated with miconazole even after 1 year of follow-up. The use of a buccal bioadhesive slow-release tablet containing an antimycotic agent proves to be an adequate method of preventing fungal colonization and deterioration of silicone voice prostheses.