Characteristics of Unscheduled and Scheduled Outpatient Palliative Care Clinic Patients at a Comprehensive Cancer Center

CONTEXT

There is limited literature regarding outpatient palliative care and factors associated with unscheduled clinic visits.

OBJECTIVES

To compare characteristics of patients with unscheduled vs. scheduled outpatient palliative care clinic visits.

METHODS

Medical records of 183 unscheduled cancer new outpatients and 104 unscheduled follow-up (FU) patients were compared with random samples of 361 and 314 scheduled new patients and FU patients, respectively. We gathered data on demographics, symptoms, daily opioid usage, and performance status.

RESULTS

Compared with scheduled new patients, unscheduled new patients had worse Edmonton Symptom Assessment Scale subscores for pain (P < 0.001), fatigue (P = 0.002), nausea (P = 0.016), depression (P = 0.003), anxiety (P = 0.038), drowsiness (P = 0.002), sleep (P < 0.001), and overall feeling of well-being (P = 0.001); had a higher morphine equivalent daily dose of opioids (median of 45 mg for unscheduled vs. 30 mg for scheduled; P < 0.001); and were more likely to be from outside the greater Houston area (P < 0.001). Most unscheduled and scheduled new and FU visits were for uncontrolled physical symptoms. Unscheduled FU patients, compared with scheduled FU patients, had worse Edmonton Symptom Assessment Scale subscores for pain (P < 0.001), fatigue (P < 0.001), depression (P = 0.002), anxiety (P = 0.004), drowsiness (P = 0.010), appetite (P = 0.023), sleep (P = 0.022), overall feeling of well-being (P < 0.001), and higher morphine equivalent daily dose of opioid (median of 58 mg for unscheduled FU visits vs. 40 mg for scheduled FU visits; P = 0.054).

CONCLUSION

Unscheduled new FU patients have higher levels of physical and psychosocial distress and higher opioid intake. Outpatient palliative care centers should consider providing opportunities for walk-in visits for timely management and close monitoring of such patients.

Frequency of concomitant use of opioids and psychoactive medications among cancer patients referred to outpatient palliative care at a comprehensive cancer center

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Background: There are potential severe effects when patients taking opioids receive other psychoactive medications. However, such combinations are sometimes necessary in palliative care. The purpose of this study was to determine the frequency of concomitant use of opioids + psychoactive medications in cancer patients referred to our outpatient palliative care center. Methods: Retrospective data obtained from consecutive consults was analyzed to determine the frequency of patients on opioids alone versus concomitant opioids + psychoactive medications at first presentation to our clinic. Association of type of medication with demographics and baseline characteristics was evaluated by Wilcoxon rank sum test for continuous variables and Chi-square (Fisher's exact) test for categorical variables. Results: Among 541 consecutive consult visits, 365 (67%) patients were taking opioids at the time of referral to our clinic: 209 (57%) were on opioids alone while 156 (43%) were on concomitant opioids + psychoactive medications [69 (44%) were on Opioid + Benzodiazepine, 46 (30%) were Opioid + Antidepressants, 41(26%) were on both). Patients in the concomitant groups were on higher Morphine Equivalent Daily Dose (MEDD, p = 0.007), had higher Edmonton Symptom Assessment Scores (ESAS) for pain (p = 0.017), anxiety (p < 0.001), depression (p < 0.001) and spiritual pain (p = 0.03). Conclusions: A large proportion (156, 43%) of cancer patients referred to outpatient palliative care was on concomitant opioids + psychoactive medications. These patients were on higher doses of opioids with higher levels of pain and psycho-social distress at the time of first presentation. Further studies are required to better understand the clinical implications of concomitant use of opioids + psychoactive medications in such patients.

Characteristics of patients with unscheduled versus scheduled visits to outpatient supportive care center (SCC) at a comprehensive cancer center

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Background: There is limited literature regarding outpatient palliative care, and even more limited literature describing factors associated with unscheduled visits. Our aim was to identify clinical characteristics of patients who walk-in (present unscheduled) to the outpatient SCC with the hypothesize that the patients who present for unscheduled visits have more severe symptom distress as compared to those patients who present for scheduled appointments. Methods: We compared 183 patients with unscheduled consults (CO) vs a random sample of 361 patients with scheduled CO and 159 patients with unscheduled follow-up (FU) visits vs a random sample of 318 patients with scheduled FU visits. Results: Among 544 total CO visits, unscheduled visits had worse median Edmonton Symptom Assessment Scale (ESAS) symptoms (on a scale from 0 to 10): pain (6.5 vs 4.7, p < .0001), fatigue (p = .002), nausea (p = .017), depression (p = .003), anxiety (p = 0.02), sleep (p = .0002), and overall feeling of well-being (p = 0.0009). There was no statistical difference in shortness of breath, financial distress, nor spiritual pain. Daily opioid dose (MEDD in mg) was significantly higher in unscheduled CO visits (119.7 vs 62.9, p = .0004). Among 344 total FU visits, unscheduled visits had worse median ESAS symptoms: pain (5.7 vs 4.2, p = .0001), fatigue (p = .0006), depression (p = .019), anxiety (p = .014) and higher MEDD (111.3 vs 73.6, p = .0009). There was no difference in type of insurance coverage and better ECOG (p = .015) in unscheduled vs scheduled CO visits. Unscheduled CO visits were more likely to be from outside the Houston area (161/361, 45% vs. 40/133, 30%, p < 0.0001). Conclusions: Patients who are either referred as unscheduled CO visits or who present as unscheduled FU visits have higher levels of physical and psychosocial distress and higher opioid dose. Outpatient palliative care centers need to provide opportunity for walk-in referrals for timely management of these issues.

Inhibition of renin activity slows down the progression of HIV-associated nephropathy

In the present study, we evaluated the effect of inhibition of renin activity (aliskiren) on the progression of renal lesions in two different mouse models (Vpr and Tg26) of human immunodeficiency virus (HIV)-associated nephropathy (HIVAN). In protocol A, Vpr mice were fed either water (C-VprA) or doxycycline [Doxy (D-VprA)] in their drinking water for 6 wk. In protocols B and C, Vpr mice received either normal saline (C-VprB/C), Doxy + normal saline (D-VprB/C), or Doxy + aliskiren (AD-VprB/C) for 6 wk (protocol B) or 12 wk (protocol C). In protocols D and E, Vpr mice were fed Doxy for 6 wk followed by kidney biopsy. Subsequently, half of the mice were administered either normal saline (D-VprD/E) or aliskiren (AD-VprD/E) for 4 wk (protocol D) or 8 (protocol E) wk. All D-VprA mice showed renal lesions in the form of focal segmental glomerular sclerosis and dilatation of tubules. In protocols B and C, aliskiren diminished both progression of renal lesions and proteinuria. In protocol C, aliskiren also diminished (P < 0.01) the rise in blood urea. In all groups, Doxy-treated mice displayed increased serum ANG I levels (the product of plasma renin activity); on the other hand, all aliskiren-treated mice displayed diminished serum ANG I levels. Renal tissues of D-VprC displayed increased ANG II content; however, aliskiren attenuated renal tissue ANG II production in AD-VprC. In protocol D, AD-VprD showed a 24.2% increase in the number of sclerosed glomeruli compared with 139.2% increase in sclerosed glomeruli in D-VprD (P < 0.01) from their baseline. The attenuating effect of aliskiren on the progression of renal lesions continued in AD-VprE. Aliskiren also diminished blood pressure, proteinuria, and progression of renal lesions in Tg26 mice. These findings indicate that inhibition of renin activity has a potential to slow down the progression of HIVAN.

Sirolimus modulates HIVAN phenotype through inhibition of epithelial mesenchymal transition

HIV-associated nephropathy (HIVAN) is characterized by proliferative phenotype in the form of collapsing glomerulopathy and microcystic dilatation of tubules. Recently, epithelial mesenchymal transition (EMT) of renal cells has been demonstrated to contribute to the pathogenesis of proliferative HIVAN phenotype. We hypothesized that sirolimus would modulate HIVAN phenotype by attenuating renal cell EMT. In the present study, we evaluated the effect of sirolimus on the development of renal cell EMT as well as on display of HIVAN phenotype in a mouse model of HIVAN (Tg26). Tg26 mice receiving normal saline (TgNS) showed enhanced proliferation of both glomerular and tubular cells when compared to control mice-receiving normal saline (CNS); on the other hand, Tg26 mice receiving sirolimus (TgS) showed attenuated renal cell proliferation when compared with TgNS. TgNS also showed increased number of α-SMA-, vimentin-, and FSP1-positive cells (glomerular as well as tubular) when compared with CNS; however, TgS showed reduced number of SMA, vimentin, and FSP1+ve renal cells when compared to TgNS. Interestingly, sirolimus preserved renal epithelial cell expression of E-cadherin in TgS. Since sirolimus attenuated renal cell ZEB expression (a repressor of E-cadherin transcription), it appears that sirolimus may be attenuating renal cell EMT by preserving epithelial cell E-cadherin expression.

HIV-associated nephropathy: role of AT2R

AT(1)R has been reported to play an important role in the progression of HIV-associated nephropathy (HIVAN); however, the effect of AT(2)R has not been studied. Age and sex matched control (FVB/N) and Tg26 mice aged 4, 8, and 16weeks were studied for renal tissue expression of AT(1)R and AT(2)R (Protocol A). Renal tissue mRNA expression of AT(2)R was lower in Tg26 mice when compared with control mice. In Protocol B, Tg26 mice were treated with either saline, telmisartan (TEL, AT(1) blocker), PD123319 (PD, AT(2)R blocker), or TEL+PD for two weeks. TEL-receiving Tg26 (TRTg) displayed less advanced glomerular and tubular lesions when compared with saline-receiving Tg26 (SRTg). TRTgs displayed enhanced renal tissue AT(2)R expression when compared to SRTgs. Diminution of renal tissue AT(2)R expression was associated with advanced renal lesions in SRTgs; whereas, upregulation of AT(2)R expression in TRTgs was associated with attenuated renal lesions. PD-receiving Tg26 mice (PDRTg) did not show any alteration in the course of HIVAN; whereas, PD+TEL-receiving Tg26 (PD-TRTg) showed worsening of renal lesions when compared to TRTgs. Interestingly, plasma as well as renal tissues of Tg26 mice displayed several fold higher concentration of Ang III, a ligand of AT(2)R.