🔥 1-Page Summary(16 核心重點,看完抓 70%)
16 點是「軸 + 機轉 + 分病 + 治療整合 + ART era + 老化」維度乘下來的最少必備量。
流行病學與整體框架(2 點)
流行:全球 38.4 million PWH;美國 1.2+ million;ART era 後 HIV 從致命病轉成 chronic disease;70+ 歲 PWH 比例顯著增;「老化加速 + ART side effects + 慢性發炎」三軸內分泌問題。
HIV 病人 endocrine dysfunction 機轉四軸:
- HIV 本身:直接感染 / lymphocyte invasion of endocrine glands
- Opportunistic infections(CMV、TB、histoplasmosis、cryptococcus、PCP)— 多 invade adrenal、testes、pituitary
- 慢性發炎(即使 ART era 仍持續低度發炎)— 加速 atherosclerosis、bone loss、insulin resistance、frailty
- ART medications + drug interactions:metabolic effects、bone toxicity、weight gain、lipid changes、QT、HPA suppression
Adrenal axis(2 點)
- Adrenal Insufficiency in HIV:
- Primary:CMV adrenalitis(pre-ART era 多)、mycobacterial、fungal、Kaposi sarcoma;ART era 已減少
- Secondary:
- Glucocorticoid use 致 HPA 抑制(最常見)— 治療 PCP、IRIS、cancer 等
- CNS infection / lymphoma invade hypothalamus / pituitary
- Drug interactions:fluticasone、budesonide + ritonavir → systemic glucocorticoid 過量 → 後 HPA 抑制
- 「Functional」glucocorticoid 抗性:cytokine + chronic stress → 部分 PWH 即使 cortisol 正常仍有 adrenal symptoms
- 篩檢:morning cortisol → cosyntropin test(peak < 18 μg/dL = AI)
- HIV Cortisol Resistance / Cortisol Shunting:
- HIV-related cytokines(特別 IL-6、TNFα)→ glucocorticoid receptor 信號改變
- 部分 PWH 「relative cortisol deficiency」即使 cortisol 在 normal 範圍
- 個別化 hydrocortisone replacement 在 sick day rules
Gonadal axis(2 點)
- Male Gonadal Dysfunction in HIV:
- 30-50% PWH 男性 hypogonadism
- Multifactorial:
- Chronic illness + 慢性發炎 → 中樞 hypogonadism
- SHBG ↑ → free testosterone ↓
- Weight loss + cachexia
- Direct testicular involvement(CMV、TB、Mycobacterium、lymphoma)
- Opioid use(chronic pain)
- Depression + 老化
- ART 部分(efavirenz、ketoconazole)影響
- 評估:morning total testosterone × 2 + LH/FSH + SHBG(free testosterone calculate)+ prolactin
- 治療:testosterone replacement individual;心血管 + prostate cancer 風險評估必
- Female Gonadal Dysfunction in HIV:
- Premature ovarian insufficiency(POI)+ menstrual abnormalities 風險增
- 機轉:chronic illness + 慢性發炎 + body composition + ART
- Cervical cancer 風險增(HPV + immunosuppression)
- HRT 個別化(CV / VTE / cancer 風險平衡)
- 妊娠:vertical transmission prevention(ART throughout pregnancy)+ HRT + 內分泌 surveillance
兒童 + Special(2 點)
- Growth and Puberty in Children with HIV:
- HIV-infected children growth velocity ↓(即使 ART well-controlled)
- Delayed puberty + 短身材 多
- GH axis dysfunction:低 IGF-1 + GH resistance(chronic inflammation)
- Bone metabolism 不健全:低 BMD + delayed peak bone mass
- HIV-exposed but uninfected children:subtle growth + neurodevelopment differences;in utero ART exposure 影響仍研究
- Electrolyte abnormalities:
- Hyponatremia 在 PWH 常見(30-40%)
- SIADH(CNS infection、pneumonia、malignancy)+ adrenal insufficiency + drug-induced
- Hyperkalemia:drug-induced(trimethoprim → 抑 ENaC)+ adrenal insufficiency
- Hypocalcemia + Vit D deficiency 普遍;治療 + 補充
- Hypomagnesemia:tenofovir、amphotericin、foscarnet
- 「Pseudohyponatremia」:高 lipemia / paraproteinemia 影響
整合治療(2 點)
- Endocrine Surveillance in PWH(2022 IAS-USA + DHHS guideline):
ART 起始前:
□ Fasting lipid + glucose + HbA1c
□ Vitamin D + Calcium
□ Renal + LFT
□ DEXA if ≥ 50 yo postmenopausal women / ≥ 50 yo men / ≥ 40 with risk factors
□ Testosterone if symptoms(男)
□ TSH baseline
年度 follow-up:
□ Fasting lipid + glucose + HbA1c
□ Bone density q 1-2 yr
□ Testosterone if hypogonadal
□ TSH if symptoms
□ Adrenal function if 抑制 / 症狀
□ Cardiovascular risk re-assessment
□ ART-related side effect monitoring(weight gain、lipid changes、bone loss)
- Treatment 整合 paradigm:
1. Adrenal: 個別化 HC replacement;sick day rules;避 fluticasone + ritonavir interaction
2. Gonadal: testosterone replacement 個別化(CV + prostate 風險評估)
3. Bone: lifestyle + Ca/Vit D + DEXA q1-2y + bisphosphonate / denosumab;TDF → TAF 切換考慮
4. Metabolic: lifestyle + metformin / SGLT2i / GLP1-RA;INSTI weight gain individual mgmt
5. CV: **Statin(pitavastatin / rosuvastatin / atorvastatin) primary prevention from age 40+ per REPRIEVE**;BP control;smoking cessation
6. Lipodystrophy: tesamorelin for visceral fat(individual);過去 lipoatrophy 已減少
7. AIDS wasting: nutritional + exercise + GH(Serostim)individual
8. ART optimization: 切換 regimen 避免 drug interaction + bone-sparing + 體重 - neutral
🎯 Self-test 25 MCQ
範圍涵蓋 6 sections,臨床情境為主;每題完整詳解。
Q1(Adrenal Insufficiency in HIV)
45 歲男 PWH 服 ritonavir-boosted protease inhibitor + 慢性 sinusitis 用 fluticasone nasal spray 3 月 → fatigue、hypotension、皮膚 thinning + Cushingoid features。下列最可能機轉?
A. Direct fluticasone 系統性吸收正常
B. Ritonavir 抑 CYP3A4 → fluticasone 系統性 levels 顯升 → iatrogenic Cushing + 後 HPA 抑制
C. Adrenal 直接感染
D. Vitamin D 缺乏
E. CNS infection
答案:B
Ritonavir / cobicistat 是 CYP3A4 strong inhibitor → fluticasone(CYP3A4-dependent metabolism)系統性吸收 ↑ 顯著 → iatrogenic Cushing + adrenal suppression。Beclomethasone 較 safer(不那麼 CYP3A4-dependent)。Switch ART 或 switch corticosteroid 必要。
Q2(Cosyntropin test)
55 歲 PWH morning cortisol 8 μg/dL,cosyntropin 250 μg → 30 min cortisol 14 μg/dL。下列最合適 interpretation?
A. Normal adrenal
B. Adrenal Insufficiency(peak < 18 μg/dL = AI)
C. Cushing
D. SIADH
E. Hyperaldosteronism
答案:B
Cosyntropin (250 μg) test peak cortisol < 18 μg/dL = AI;secondary causes(HPA 抑制 from ART/steroid)or primary(CMV、TB、fungal)需鑑別。ACTH measurement primary(> normal)vs secondary(low/normal)。
Q3(Male hypogonadism in HIV)
50 歲 PWH morning total testosterone 250 ng/dL(normal 300-1000)+ SHBG 80(high)+ LH 4 mIU/mL(low-normal)。下列最合適 next?
A. 立即 testosterone replacement
B. Free testosterone 計算 + 確認 SHBG 影響 + LH/FSH 解讀為 secondary hypogonadism
C. Prolactin 測定即可
D. 不需治療
E. 直接 IM testosterone
答案:B
PWH 男性 SHBG ↑ 多致 total testosterone 失準 → calculated free testosterone 是更精準 marker。LH 在 normal range with low T = secondary hypogonadism(中樞 HPG 抑制)。Multifactorial:chronic illness、SHBG、weight、opioids、depression。Replacement 個別化 + PSA + Hct + CV risk evaluation。
Q4(HIV bone loss + ART)
50 歲 PWH ART 起始 12 mo 後 DEXA femoral neck T-score -2.6(前 -1.8)。下列最合適?
A. 觀察
B. TDF → TAF switch + Ca/Vit D + 考慮 bisphosphonate(zoledronate IV q yr 或 alendronate)
C. Stop ART
D. PTH 替代
E. Calcitonin
答案:B
ART 起始 BMD ↓ 2-6% over 2 yr,特別 TDF。TAF 影響較小 → switch 可考慮。Osteoporosis (T < -2.5) + ART era → bisphosphonate(alendronate 70 mg PO q wk 或 zoledronate 5 mg IV q yr);denosumab alternative;teriparatide / abaloparatide / romosozumab for severe。Vitamin D + calcium baseline.
Q5(AVN)
38 歲 PWH 髖關節急性痛 + 跑步加重 + X-ray 正常 + 過去長期 corticosteroid use for IRIS。下列最敏感 imaging?
A. CT
B. MRI
C. Plain radiograph (再做)
D. PET
E. Bone scan
答案:B
AVN early stages → MRI is gold standard(X-ray 多 normal early);T1 + STIR sequences 顯示 marrow edema + double-line sign。Ficat staging 0-IV。PWH AVN risk 5-10× general(多 corticosteroid + ART + ETOH)。Treatment:保守 → core decompression → 全髖置換。
Q6(INSTI weight gain)
40 歲女性 PWH ART switch from efavirenz/TDF/FTC to dolutegravir/TAF/FTC,1 yr 後體重 ↑ 6 kg。下列最可能 mechanism?
A. 直接食慾刺激
B. INSTI weight gain effect + TAF 效應;女性 + black ethnicity 特別顯著
C. Dolutegravir 直接 lipogenesis
D. Worsening DM
E. Hypothyroidism
答案:B
INSTI / TAF era weight gain 是 2020s 新關注;DAWNING、ADVANCE、NAMSAL trials 顯示 ~3-5 kg over 1-2 yr;女性 + 黑人 + 起始 BMI 高 + low CD4 起始最顯著。機轉不確定(return-to-health + 直接 INSTI on adipocyte + TAF metabolite)。Management:lifestyle + GLP1-RA / tirzepatide emerging + ART switch individual。
Q7(Lipodystrophy treatment)
45 歲 PWH lipohypertrophy 嚴重 abdominal visceral fat + 食慾正常 + insulin resistance。下列最特異 FDA-approved 治療?
A. Liposuction
B. Tesamorelin 2 mg SC qd(GHRH analogue, Egrifta)
C. GH high dose
D. Weight loss surgery
E. Metformin only
答案:B
Tesamorelin (Egrifta) FDA approved for HIV-related visceral lipohypertrophy;2 mg SC qd → ↓ visceral fat ~15% over 26 wk;停藥反彈。Lifestyle + Metformin adjuncts。Liposuction 對 visceral fat 不適合(subcutaneous 才有用)。Bariatric surgery in BMI ≥ 35-40 selected cases。
Q8(REPRIEVE trial paradigm)
REPRIEVE trial 2023 主要 take-home?
A. Pitavastatin 對 PWH 無效
B. Pitavastatin 4 mg in PWH age 40-75 + low-to-moderate ASCVD risk → MACE ↓ 35%(primary prevention);改變 HIV 病人 statin paradigm
C. 只 high-risk PWH 受益
D. Statin 在 PWH 增 risk
E. ART 取代 statin
答案:B
REPRIEVE 2023 (NEJM Grinspoon, n=7,769) — pitavastatin 4 mg in PWH age 40-75 + low-to-moderate ASCVD risk → MACE ↓ 35%, trial 提早終止 due to efficacy。Primary prevention 顯著效果 → 多 PWH 即使 LDL 不高也應 statin(特別 ≥ 40 歲)。HIV ASCVD 預防 paradigm 已不只 LDL 而是 anti-inflammatory + plaque stabilization。
Q9(Statin choice + ART)
PWH 服 ritonavir-boosted darunavir。下列 statin 絕對禁忌?
A. Atorvastatin
B. Rosuvastatin
C. Simvastatin
D. Pitavastatin
E. Pravastatin
答案:C
Simvastatin + Lovastatin CYP3A4 重度依賴 → ritonavir / cobicistat 強 inhibitor → 系統性 levels 大增 → severe rhabdomyolysis 風險 → 絕對禁忌。Pitavastatin minimal CYP → REPRIEVE 標準。Atorvastatin / rosuvastatin safe with dose adjustment(CYP3A4 + OATP)。Pravastatin / fluvastatin 不依賴 CYP3A4 → safe。
Q10(DM in PWH)
PWH HbA1c 7.0%(多年)但 fasting glucose 持續 145 mg/dL。下列最合適?
A. HbA1c 已達標 → 不變
B. HbA1c 在 PWH 多 underestimate(reduced RBC 半衰期 + 慢性發炎)→ 需 fasting glucose / OGTT 補充
C. 換 insulin only
D. SGLT2i first-line
E. 不需 DM 治療
答案:B
HbA1c 在 PWH 多 underestimate true glycemia(reduced RBC 半衰期 + chronic inflammation + ART 影響)→ fasting glucose / OGTT 補充必要。Treatment:lifestyle + metformin first-line(drug interaction 少 + safe)+ SGLT2i / GLP1-RA individual。
Q11(AIDS wasting in modern era)
下列關於 AIDS wasting 何者正確?
A. Modern ART era 仍很常見
B. Modern ART era 已罕見 (< 5%);過去 anabolic adjuncts (testosterone、GH) 多歷史
C. 必由 CMV adrenalitis 致
D. 不可治療
E. Megestrol 是 first-line
答案:B
Modern ART era 已罕見 AIDS wasting (< 5%);過去主動 wasting 是 mortality risk factor。Treatment(個別化 in selected cases):nutritional + exercise + recombinant GH (somatropin, Serostim) 6 mg SC qd × 12 wk for short-term lean mass + functional improvement;anabolic steroids individual。Megestrol acetate 增 fat 多於 lean + HPA 抑制。
Q12(HIV cervical cancer screening)
30 歲 HIV-infected female 病人 cervical cancer screening 頻率?
A. Every 3-5 yr like general
B. Pap + HPV co-testing q 6-12 mo(vs 一般 q 3-5 yr)
C. Not needed
D. Q 5 yr
E. Only if symptomatic
答案:B
PWH female cervical cancer risk 增 5-8 倍(HPV + immunosuppression)。Pap smear + HPV co-testing q 6-12 mo(vs 一般 q 3-5 yr);異常 → colposcopy + biopsy。HPV vaccination 強烈推薦。
Q13(HIV CV disease 機轉)
PWH ASCVD risk 比 HIV-negative 增加,主要不可改變的 driver?
A. LDL
B. BP
C. 慢性發炎 (chronic inflammation, immune activation)
D. Glucose
E. Smoking
答案:C
PWH ASCVD risk 1.5-2× HIV-negative even after risk factor adjustment → 慢性發炎是核心 driver。即使 ART well-controlled 仍 residual immune activation + microbial translocation。Anti-inflammatory CV strategies(statin pleiotropic + colchicine + IL-1β)為新方向。REPRIEVE statin 部分 attribution 在 anti-inflammatory effect。
Q14(Hyponatremia in PWH)
PWH 30-40% 有 hyponatremia。下列最常見 mechanism?
A. Heart failure
B. SIADH(CNS infection、pneumonia、malignancy、efavirenz)
C. Adrenal insufficiency only
D. Direct HIV
E. Kidney failure
答案:B
PWH hyponatremia 30-40%(最常見 electrolyte 異常);SIADH 主因(CNS infection、pneumonia、malignancy、efavirenz);adrenal insufficiency + drug-induced(thiazide、SSRI)+ volume depletion 也常。Pseudohyponatremia(高 lipemia / paraproteinemia)需區分(direct ISE 仍正常)。
Q15(Vitamin D deficiency in PWH)
PWH 60-70% Vit D deficiency。下列最合適 baseline replacement?
A. 不需
B. Vitamin D3 1000-2000 IU/day baseline + Ca 1000 mg;目標 25(OH)D > 30 ng/mL
C. 50,000 IU q wk forever
D. Active calcitriol only
E. UV light only
答案:B
PWH Vit D deficiency 普遍(60-70%;機轉:少日曬 + 慢性發炎 + ART + obesity + skin pigmentation)。Baseline replacement Vit D3 1000-2000 IU/day + Ca 1000 mg;目標 25(OH)D > 30 ng/mL;severe deficiency 高劑量 (50,000 IU q wk × 8 wk) loading 然後 maintenance。Active calcitriol only in CKD 進階。
Q16(Children with HIV growth)
8 歲 HIV-infected child + ART well-controlled + height velocity ↓。下列最可能 mechanism?
A. 飲食不足 only
B. GH axis dysfunction(IGF-1 ↓ + GH resistance from chronic inflammation)+ delayed puberty
C. Vitamin D only
D. ART 直接抑 GH
E. 心理因素
答案:B
Pediatric PWH growth dysfunction:IGF-1 ↓ + GH resistance from chronic inflammation + low BMI + delayed puberty + chronic illness。Even ART well-controlled 仍 see height velocity ↓。Evaluation:IGF-1 + GH stim + bone age + nutrition。Recombinant GH (rhGH) replacement 個別化(部分 case 改善)。
Q17(HIV thymic NET in MEN1 - false interaction)
PWH 病人合併 MEN1 + thymic NET surveillance。下列最合適?
A. 不需 surveillance
B. q 5y chest CT 標準 surveillance(呼應 Ch 42 update);PWH 不改 surveillance schedule 但 chronic inflammation 加成 risk needs monitoring
C. q 6 mo CT
D. Forget MEN1
E. ART 取代 surveillance
答案:B
呼應 Ch 42:MEN1 thymic NET surveillance q 5y chest CT(2024 update);PWH 不改 schedule 但慢性發炎 + immunosuppression 可能加成 cancer 風險 → 多學科 endocrinology + oncology + HIV care。
Q18(Tesamorelin mechanism)
Tesamorelin 機轉?
A. Direct lipase inhibitor
B. GHRH analogue → 刺激 GH 內生 → ↓ visceral fat
C. Insulin sensitizer
D. PCSK9 inhibitor
E. SSA
答案:B
Tesamorelin (Egrifta) 是 GHRH analogue → 刺激內生 GH 分泌 → 影響 fat metabolism → ↓ visceral fat ~15% over 26 wk。FDA approved for HIV-related lipodystrophy。停藥反彈。副作用:注射部位反應、joint pain、glucose 微升。
Q19(Drug interaction example)
PWH 服 cobicistat-boosted ART + 新處方 quetiapine for sleep。下列最重要警示?
A. Synergy good
B. Cobicistat strong CYP3A4 inhibitor → quetiapine levels 大增 → CNS depression、QT 延長 risk
C. Quetiapine 影響 ART
D. 兩者 OK
E. 增 quetiapine 劑量
答案:B
Cobicistat / Ritonavir 強 CYP3A4 inhibitor;quetiapine CYP3A4-dependent → 系統性 levels ↑ → CNS depression + QT 延長 risk。Avoid combination 或 dose reduce drastically;alternative:trazodone, mirtazapine 為 safer alternative。Liverpool HIV Drug Interactions database 是必查資源。
Q20(Pediatric HIV bone)
pediatric HIV-infected child 骨密度監測?
A. 不需
B. DEXA q 1-2 yr + Ca/Vit D + 必要時 bisphosphonate(selected)+ ART optimization for bone
C. Annual MRI
D. Calcitonin only
E. PTH high dose
答案:B
Pediatric PWH BMD ↓ 多 (delayed peak bone mass) → DEXA q 1-2 yr surveillance + Ca/Vit D baseline;severe case bisphosphonate individual。ART optimization:TAF 較 TDF bone safer。Lifestyle (weight-bearing exercise + 戒菸 + 限酒).
Q21(HIV adrenal in modern era)
ART 完善 PWH 病人若出現 adrenal insufficiency,最常見 cause?
A. CMV adrenalitis
B. TB
C. Glucocorticoid use 致 HPA 抑制(exogenous)
D. Direct HIV
E. Lymphoma
答案:C
Modern ART era:primary adrenal insufficiency 由 opportunistic infection 致已罕;最常見 = secondary,因 glucocorticoid use(治療 PCP/IRIS/cancer)→ HPA 抑制。Ritonavir/cobicistat + fluticasone interaction 加成。Pre-ART era CMV adrenalitis 為主因。
Q22(Long-acting cabotegravir + rilpivirine)
Cabenuva (cabotegravir + rilpivirine) IM monthly 對 endocrine 影響?
A. 完全 negative
B. 改變 ART delivery;對 metabolic 影響仍累積數據;理論減少 oral drug interaction 但局部 IM 副作用
C. 增加 weight gain 5×
D. 致 immediate AI
E. 取代所有 ART
答案:B
Long-acting cabotegravir + rilpivirine (Cabenuva) IM monthly → simplified adherence;metabolic effects 仍累積(INSTI cabotegravir 部分 weight gain);oral drug interaction 減少(無 daily oral interaction);副作用:injection site reactions、long t½ 致 missed dose tail。
Q23(綜合 — ART 起始 + 內分泌 baseline)
新診 HIV 35 歲男 ART 起始前 baseline。下列最完整 endocrine baseline panel?
A. TSH only
B. Fasting lipid + glucose + HbA1c + Vit D + Ca + LFT + Cr + BMI + waist circumference + testosterone (if symptoms) + DEXA (if ≥ 50 yo / ≥ 40 with risks) + TSH baseline + PSA + DRE (if ≥ 50)
C. Adrenal cortisol only
D. Bone density only
E. None needed
答案:B
2022 IAS-USA + DHHS guideline:ART 起始前 endocrine baseline 全面;ART 起始後內分泌變化(lipid、weight、bone)需動態 follow。Drug interaction + comorbidity assessment。
Q24(PWH GLP1-RA for ART weight gain)
40 歲女性 PWH ART (DTG/TAF/FTC) 1 yr ↑ 7 kg + BMI 33 + insulin resistance。下列emerging evidence?
A. 不能用 GLP1-RA
B. Semaglutide / Liraglutide 對 ART weight gain 有 emerging benefit;個別化 + drug interaction 注意;ART switch individual
C. 必須 stop ART
D. Tesamorelin
E. Bariatric immediately
答案:B
ART weight gain (INSTI/TAF era) 是 2020s 新關注。GLP1-RA / Tirzepatide for ART weight gain:emerging studies;個別化 + drug interaction with ART minimal(SC injection)+ ART switch individual considered for viral suppression > weight gain priority。Tesamorelin focus on visceral;GLP1-RA focus on weight + insulin resistance + cardiometabolic。
Q25(綜合應用 — PWH multifactorial endocrinopathy)
55 歲男 PWH 20 yr + ART (DTG/TAF/FTC) + low testosterone (210 ng/dL) + osteoporosis (T -2.8) + DM HbA1c 7.5 + hyperlipidemia (LDL 130) + lipohypertrophy + bone pain。下列最現代整合 plan?
A. 只 testosterone replacement
B. Testosterone replacement individual + DEXA + bisphosphonate (zoledronate) + Ca/Vit D + ART switch (TDF→TAF) + Pitavastatin for ASCVD primary prevention (REPRIEVE) + Metformin/SGLT2i + Tesamorelin (lipohypertrophy 嚴重 + visceral fat) + multidisciplinary
C. ART stop
D. 只 metformin
E. Single endocrine focus
答案:B
多腺體 PWH 整合 management:
1. Hypogonadism → testosterone replacement individual + PSA + Hct
2. Osteoporosis → DEXA + bisphosphonate (zoledronate) + Ca/Vit D + ART optimization
3. DM → metformin first + SGLT2i / GLP1-RA + lifestyle
4. Hyperlipidemia → REPRIEVE pitavastatin + lifestyle
5. Lipohypertrophy → Tesamorelin if severe + lifestyle
6. ART optimization: TDF → TAF + monitor weight gain
7. Multidisciplinary team: HIV specialist + endocrinology + cardiology + pharmacy + dietitian + 心理
REPRIEVE paradigm:multi-organ PWH 即使 LDL 不顯高也應 statin。