eMedicine Specialties > Dermatology > Diseases of Pigmentation
Hermansky-Pudlak Syndrome: Follow-up
Updated: Feb 14, 2008
Follow-up
Further Inpatient Care
- Care must be taken when surgery is performed on patients with HPS because of bleeding problems and pulmonary compromise.
Further Outpatient Care
- A variety of steps in medical care can be useful in helping patients with HPS, including the following:
- A MedicAlert bracelet or other identification can be helpful in notifying caregivers of patients with HPS who have a bleeding disorder.
- The avoidance of aspirin, products containing aspirin, and any other products that may compromise platelet function is important for patients.
- The importance of good dental care needs to be explained to patients. The dentist must be aware that the patient has HPS because some dental procedures may require special medications and precautions.
- Proper treatment of nosebleeds is important for patient care. Nasal packing should only be performed under medical supervision because removal may cause further bleeding.
- Damage to the lungs must be avoided; thus, diligent treatment of upper respiratory infections and avoidance of smoking are useful.
- The use of gauze with petrolatum and pressure dressings on cuts or abrasions that require coverings is useful.
- In the care of patients with HPS, thrombin on Gelfoam has a role in surface bleeding and DDAVP and platelets have a role in serious bleeding.
- Feliciano et al21 noted steps to facilitate dental care for patients with HPS, including (1) use of eyeglasses with 99% ultraviolet filter to protect HPS patients from the unpleasant dental light stimulus, (2) an extra-soft toothbrush and conservative brushing technique, (3) use of medications with antifibrinolytic agents, and (4) local care to ensure hemostasis.
Deterrence/Prevention
- Patients can receive genetic counseling. Patients in areas that have a high incidence of carriers of HPS should avoid marrying close relatives. Currently, no gene therapy for HPS exists.
Complications
- The most common complication is bleeding, and care should be taken to minimize its effects in surgery and to avoid trauma.
- Ceroid can infiltrate all body organs and can lead to pulmonary failure, kidney failure, cardiomyopathy, colitis, and other organ malfunctions. In particular, pulmonary complications can occur following general endotracheal anesthesia.
- Because patients with HPS are photosensitive, skin cancers can develop and visual function can worsen.
Prognosis
- Patients are often legally blind, and vision can worsen over time. Cataracts can also develop at an earlier age than in healthy control subjects.
- Because patients receive blood and platelet transfusions, the occurrence of blood-borne illness transmission is higher in these patients. As many as 13% of patients with HPS die from hemorrhagic episodes.
- Pulmonary complications are more common in Puerto Rican patients. In patients with HPS, the most common cause of death (50%) is pulmonary fibrosis.
- Some patients have colitis, and about 13% of patients die from complications relating to colitis.
Patient Education
- Vision education
- Patients need extensive education regarding visual impairment and visual enhancement. They need to understand the implications of photophobia, low-vision aids, nystagmus, and strabismus.
- The benefits of protective sunglasses must be explained to patients. Sunglasses decrease photophobia in patients with HPS. Sunglasses with ultraviolet protection minimize the harmful visual effects of ultraviolet rays. Further, blue blockers, yellow tint, or polarized glasses may decrease photophobia in patients with HPS.
- Low-vision aids enhance the lives of patients with HPS. These aids can facilitate educational activities. Patients and families need education regarding telescopic lenses, high-contrast school materials, and font magnifiers.
- Grønskov et al22 have suggested that people with diseases such as HPS (1) use glasses (possibly bifocals) and dark glasses or photochromic lenses to abate effects of reduced visual activity and photophobia and (2) consider having strabismus and nystagmus corrected if necessary.
- Skin education
- Patients need to understand that their skin is sensitive to the sun.
- They must wear sunblock with a high SPF and avoid sun exposure.
- They should wear hats and undergo frequent dermatologic evaluation.
- They should obtain regular skin cancer checks.
- Hematologic education
- Patients and families need to understand the implications of the increased bleeding tendency.
- Patients must avoid contact sports and physical trauma.
- Surgery should be undertaken with caution.
- Pulmonary education: Patients need to understand that lung and heart function can be adversely affected by HPS. Therefore, they need to frequently visit doctors to assess and avoid the complications involved.
- Other: Because patients with HPS have many health issues, they might require psychological, educational, and social assistance from appropriate specialists.
- For excellent patient education resources, visit eMedicine's Ear, Nose, and Throat Center. Also, see eMedicine's patient education article Nosebleeds.
Miscellaneous
Medicolegal Pitfalls
- HPS must be distinguished from other forms of albinism because it has many systemic manifestations.
Special Concerns
- Patients with HPS who experience trauma must receive prompt evaluation and appropriate imaging studies because of the increased bleeding tendency.
- Patients with HPS are usually legally blind; therefore, appropriate interventions to enhance vision must be undertaken. With visual enhancement, patients are often able to drive cars. Because of the status of people who are legally blind, special education and medical and social benefits may be available.
- Because of the bleeding problems, pregnancies in patients with HPS are considered high risk, and these patients are at increased risk during labor, cesarean delivery, and the perinatal period.
More on Hermansky-Pudlak Syndrome |
| Overview: Hermansky-Pudlak Syndrome |
| Differential Diagnoses & Workup: Hermansky-Pudlak Syndrome |
| Treatment & Medication: Hermansky-Pudlak Syndrome |
Follow-up: Hermansky-Pudlak Syndrome |
| Multimedia: Hermansky-Pudlak Syndrome |
| References |
| « Previous Page | Next Page » |
References
Badolato R, Parolini S. Novel insights from adaptor protein 3 complex deficiency. J Allergy Clin Immunol. Oct 2007;120(4):735-41; quiz 742-3. [Medline].
Anikster Y, Huizing M, White J, Shevchenko YO, Fitzpatrick DL, Touchman JW, et al. Mutation of a new gene causes a unique form of Hermansky-Pudlak syndrome in a genetic isolate of central Puerto Rico. Nat Genet. Aug 2001;28(4):376-80. [Medline].
Helip-Wooley A, Westbroek W, Dorward HM, Koshoffer A, Huizing M, Boissy RE, et al. Improper trafficking of melanocyte-specific proteins in Hermansky-Pudlak syndrome type-5. J Invest Dermatol. Jun 2007;127(6):1471-8. [Medline].
Syrzycka M, McEachern LA, Kinneard J, Prabhu K, Fitzpatrick K, Schulze S, et al. The pink gene encodes the Drosophila orthologue of the human Hermansky-Pudlak syndrome 5 (HPS5) gene. Genome. Jun 2007;50(6):548-56. [Medline].
Li W, Zhang Q, Oiso N, Novak EK, Gautam R, O'Brien EP, et al. Hermansky-Pudlak syndrome type 7 (HPS-7) results from mutant dysbindin, a member of the biogenesis of lysosome-related organelles complex 1 (BLOC-1). Nat Genet. Sep 2003;35(1):84-9. [Medline].
Falcón-Pérez JM, Romero-Calderón R, Brooks ES, Krantz DE, Dell'Angelica EC. The Drosophila pigmentation gene pink (p) encodes a homologue of human Hermansky-Pudlak syndrome 5 (HPS5). Traffic. Feb 2007;8(2):154-68. [Medline].
Nguyen T, Wei ML. Hermansky-Pudlak HPS1/pale ear gene regulates epidermal and dermal melanocyte development. J Invest Dermatol. Feb 2007;127(2):421-8. [Medline].
Morgan NV, Pasha S, Johnson CA, Ainsworth JR, Eady RA, Dawood B, et al. A germline mutation in BLOC1S3/reduced pigmentation causes a novel variant of Hermansky-Pudlak syndrome (HPS8). Am J Hum Genet. Jan 2006;78(1):160-6. [Medline].
Di Pietro SM, Falcón-Pérez JM, Tenza D, Setty SR, Marks MS, Raposo G, et al. BLOC-1 interacts with BLOC-2 and the AP-3 complex to facilitate protein trafficking on endosomes. Mol Biol Cell. Sep 2006;17(9):4027-38. [Medline].
Jung J, Bohn G, Allroth A, Boztug K, Brandes G, Sandrock I, et al. Identification of a homozygous deletion in the AP3B1 gene causing Hermansky-Pudlak syndrome, type 2. Blood. Jul 1 2006;108(1):362-9. [Medline].
Grucela AL, Patel P, Goldstein E, Palmon R, Sachar DB, Steinhagen RM. Granulomatous enterocolitis associated with Hermansky-Pudlak syndrome. Am J Gastroenterol. Sep 2006;101(9):2090-5. [Medline].
Hazzan D, Seward S, Stock H, Zisman S, Gabriel K, Harpaz N, et al. Crohn's-like colitis, enterocolitis and perianal disease in Hermansky-Pudlak syndrome. Colorectal Dis. Sep 2006;8(7):539-43. [Medline].
Thomas de Montpréville V, Mussot S, Dulmet E, Dartevelle P. [Pulmonary fibrosis in Hermansky-Pudlak syndrome is not fully usual]. Ann Pathol. Dec 2006;26(6):445-9. [Medline].
Iannello S, Fabbri G, Bosco P, Cavaleri A, Cantarella S, Camuto M, et al. A clinical variant of familial Hermansky-Pudlak syndrome. MedGenMed. Jan 27 2003;5(1):3. [Medline].
Enders A, Zieger B, Schwarz K, Yoshimi A, Speckmann C, Knoepfle EM, et al. Lethal hemophagocytic lymphohistiocytosis in Hermansky-Pudlak syndrome type II. Blood. Jul 1 2006;108(1):81-7. [Medline].
Avila NA, Brantly M, Premkumar A, Huizing M, Dwyer A, Gahl WA. Hermansky-Pudlak syndrome: radiography and CT of the chest compared with pulmonary function tests and genetic studies. AJR Am J Roentgenol. Oct 2002;179(4):887-92. [Medline].
Brantly M, Avila NA, Shotelersuk V, Lucero C, Huizing M, Gahl WA. Pulmonary function and high-resolution CT findings in patients with an inherited form of pulmonary fibrosis, Hermansky-Pudlak syndrome, due to mutations in HPS-1. Chest. Jan 2000;117(1):129-36. [Medline].
Izquierdo NJ, Emanuelli A, Izquierdo JC, García M, Cadilla C, Berrocal MH. Foveal thickness and macular volume in patients with oculocutaneous albinism. Retina. Nov-Dec 2007;27(9):1227-30. [Medline].
Erzin Y, Cosgun S, Dobrucali A, Tasyurekli M, Erdamar S, Tuncer M. Complicated granulomatous colitis in a patient with Hermansky-Pudlak syndrome, successfully treated with infliximab. Acta Gastroenterol Belg. Apr-Jun 2006;69(2):213-6. [Medline].
Cordova A, Barrios NJ, Ortiz I, Rivera E, Cadilla C, Santiago-Borrero PJ. Poor response to desmopressin acetate (DDAVP) in children with Hermansky-Pudlak syndrome. Pediatr Blood Cancer. Jan 2005;44(1):51-4. [Medline].
Feliciano NZ, Rivera E, Agrait E, Rodriguez K. Hermansky-Pudlak syndrome: dental management considerations. J Dent Child (Chic). Jan-Apr 2006;73(1):51-6. [Medline].
Grønskov K, Ek J, Brondum-Nielsen K. Oculocutaneous albinism. Orphanet J Rare Dis. 2007;2:43. [Medline].
Bahadori R, Rinner O, Schonthaler HB, Biehlmaier O, Makhankov YV, Rao P, et al. The Zebrafish fade out mutant: a novel genetic model for Hermansky-Pudlak syndrome. Invest Ophthalmol Vis Sci. Oct 2006;47(10):4523-31. [Medline].
Boissy RE, Richmond B, Huizing M, Helip-Wooley A, Zhao Y, Koshoffer A, et al. Melanocyte-specific proteins are aberrantly trafficked in melanocytes of Hermansky-Pudlak syndrome-type 3. Am J Pathol. Jan 2005;166(1):231-40. [Medline].
Chiang PW, Oiso N, Gautam R, Suzuki T, Swank RT, Spritz RA. The Hermansky-Pudlak syndrome 1 (HPS1) and HPS4 proteins are components of two complexes, BLOC-3 and BLOC-4, involved in the biogenesis of lysosome-related organelles. J Biol Chem. May 30 2003;278(22):20332-7. [Medline].
Davies BH, Tuddenham EG. Familial pulmonary fibrosis associated with oculocutaneous albinism and platelet function defect. A new syndrome. Q J Med. Apr 1976;45(178):219-32. [Medline].
Di Pietro SM, Falcón-Pérez JM, Dell'Angelica EC. Characterization of BLOC-2, a complex containing the Hermansky-Pudlak syndrome proteins HPS3, HPS5 and HPS6. Traffic. Apr 2004;5(4):276-83. [Medline].
Dimson O, Drolet BA, Esterly NB. Hermansky-Pudlak syndrome. Pediatr Dermatol. Nov-Dec 1999;16(6):475-7. [Medline].
Feng L, Novak EK, Hartnell LM, Bonifacino JS, Collinson LM, Swank RT. The Hermansky-Pudlak syndrome 1 (HPS1) and HPS2 genes independently contribute to the production and function of platelet dense granules, melanosomes, and lysosomes. Blood. Mar 1 2002;99(5):1651-8. [Medline].
Gwynn B, Martina JA, Bonifacino JS, Sviderskaya EV, Lamoreux ML, Bennett DC, et al. Reduced pigmentation (rp), a mouse model of Hermansky-Pudlak syndrome, encodes a novel component of the BLOC-1 complex. Blood. Nov 15 2004;104(10):3181-9. [Medline].
Hermos CR, Huizing M, Kaiser-Kupfer MI, Gahl WA. Hermansky-Pudlak syndrome type 1: gene organization, novel mutations, and clinical-molecular review of non-Puerto Rican cases. Hum Mutat. Dec 2002;20(6):482. [Medline].
Huizing M, Gahl WA. Disorders of vesicles of lysosomal lineage: the Hermansky-Pudlak syndromes. Curr Mol Med. Aug 2002;2(5):451-67. [Medline].
Huizing M, Parkes JM, Helip-Wooley A, White JG, Gahl WA. Platelet alpha granules in BLOC-2 and BLOC-3 subtypes of Hermansky-Pudlak syndrome. Platelets. Mar 2007;18(2):150-7. [Medline].
Husain S, Marsh E, Saenz-Santamaria MC, McNutt NS. Hermansky-Pudlak syndrome: report of a case with histological, immunohistochemical and ultrastructural findings. J Cutan Pathol. Aug 1998;25(7):380-5. [Medline].
Krisp A, Hoffman R, Happle R, König A, Freyschmidt-Paul P. Hermansky-Pudlak syndrome. Eur J Dermatol. Jul-Aug 2001;11(4):372-3. [Medline].
Li W, Feng Y, Hao C, Guo X, Cui Y, He M. The BLOC interactomes form a network in endosomal transport. J Genet Genomics. Aug 2007;34(8):669-82. [Medline].
Richmond B, Huizing M, Knapp J, Koshoffer A, Zhao Y, Gahl WA, et al. Melanocytes derived from patients with Hermansky-Pudlak Syndrome types 1, 2, and 3 have distinct defects in cargo trafficking. J Invest Dermatol. Feb 2005;124(2):420-7. [Medline].
Schallreuter KU, Frenk E, Wolfe LS, Witkop CJ, Wood JM. Hermansky-Pudlak syndrome in a Swiss population. Dermatology. 1993;187(4):248-56. [Medline].
Schreyer-Shafir N, Huizing M, Anikster Y, Nusinker Z, Bejarano-Achache I, Maftzir G, et al. A new genetic isolate with a unique phenotype of syndromic oculocutaneous albinism: clinical, molecular, and cellular characteristics. Hum Mutat. Nov 2006;27(11):1158. [Medline].
Setty SR, Tenza D, Truschel ST, Chou E, Sviderskaya EV, Theos AC, et al. BLOC-1 is required for cargo-specific sorting from vacuolar early endosomes toward lysosome-related organelles. Mol Biol Cell. Mar 2007;18(3):768-80. [Medline].
Smith JW, Koshoffer A, Morris RE, Boissy RE. Membranous complexes characteristic of melanocytes derived from patients with Hermansky-Pudlak syndrome type 1 are macroautophagosomal entities of the lysosomal compartment. Pigment Cell Res. Dec 2005;18(6):417-26. [Medline].
Suzuki T, Li W, Zhang Q, Karim A, Novak EK, Sviderskaya EV, et al. Hermansky-Pudlak syndrome is caused by mutations in HPS4, the human homolog of the mouse light-ear gene. Nat Genet. Mar 2002;30(3):321-4. [Medline].
Tang J, Tsilou E, Caruso RC, Rubin B, Gahl WA. Bilateral staphylomas in a patient with Hermansky-Pudlak syndrome. Retina. Jan 2005;25(1):99-100. [Medline].
Tomita Y, Suzuki T. Genetics of pigmentary disorders. Am J Med Genet C Semin Med Genet. Nov 15 2004;131C(1):75-81. [Medline].
Toro J, Turner M, Gahl WA. Dermatologic manifestations of Hermansky-Pudlak syndrome in patients with and without a 16-base pair duplication in the HPS1 gene. Arch Dermatol. Jul 1999;135(7):774-80. [Medline].
Vanhooteghem O, Courtens W, Andre J, Sass U, Song M. Hermansky-Pudlak syndrome: a case report and discussion. Pediatr Dermatol. Sep-Oct 1998;15(5):374-7. [Medline].
Zhang Q, Zhao B, Li W, Oiso N, Novak EK, Rusiniak ME, et al. Ru2 and Ru encode mouse orthologs of the genes mutated in human Hermansky-Pudlak syndrome types 5 and 6. Nat Genet. Feb 2003;33(2):145-53. [Medline].
Further Reading
Keywords
Hermansky-Pudlack syndrome, HPS, oculocutaneous albinism, lysosomal ceroid storage
Follow-up: Hermansky-Pudlak Syndrome